CN104006574A - Compound solar air source heat pump - Google Patents

Compound solar air source heat pump Download PDF

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CN104006574A
CN104006574A CN201410222276.4A CN201410222276A CN104006574A CN 104006574 A CN104006574 A CN 104006574A CN 201410222276 A CN201410222276 A CN 201410222276A CN 104006574 A CN104006574 A CN 104006574A
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valve
solar
source heat
air source
heat pump
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CN104006574B (en
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李先庭
吴伟
王宝龙
冉思源
张朋磊
石文星
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Tsinghua University
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Tsinghua University
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Abstract

The invention discloses a compound solar air source heat pump, and belongs to the heat supply field. The compound solar air source heat pump comprises an air source heat pump circulation system, an air source heat pipe circulation system, a solar heat pump circulation system, a solar heat pipe circulation system, a solar air source heat pump parallel-connection circulation system, a solar air source heat pipe parallel-connecting circulation system, a solar air source heat pump serial-connecting circulation system and a solar air source heat pipe serial-connecting circulation system. The compound solar air source heat pump can achieve switchover operation of multiple modes according to the solar radiation conditions and the change of outdoor air temperature, achieve the purpose of making full of various grades of solar energy and air thermal energy, effectively lower the primary investment of a heating system, improve the utilization efficiency and utilization degree of solar energy of different radiation intensities and air thermal energy of different temperature grades, and overcome the defects that when the solar energy is not sufficient, a traditional solar water heater can not reliably supply hot water, and an air source heat pump usually only can use air thermal energy but can not effectively use solar radiation energy.

Description

A kind of composite solar air source heat pump
Technical field
The present invention relates to a kind of composite solar air source heat pump, can make full use of the regenerative resources such as solar energy and air heat energy, according to solar radiation condition and outside air temperature, by heat pipe circulation, the heat pump cycle of solar energy, the reasonable switching of heat pipe circulation, heat pump cycle and the combined cycle system thereof of air-source, realizes efficient heat supply and domestic hot-water supply.This technology is specially adapted to Winter heat supply and annual domestic hot-water supply, also can be used for the concurrent heating of soil source heat pump system, belongs to heating field.
Background technology
Whole world building heat supplying and domestic hot-water's energy consumption are very large, the living standard that developed country is higher and habits and customs have caused huge hot water demand and energy resource consumption, and developing country is along with the development of urbanization and the rapid growth of growth in the living standard meeting maintenance energy consumption of hot water.Traditional heating system is the mode based on combustion of fossil fuel mainly, and not only efficiency is low but also seriously polluted; Hot water supply system mainly adopts gas heater and electric heater, has the problem of energy grade waste.Heat supply and domestic hot-water more and more become energy-saving and emission-reduction, administer one of the field of paying close attention to of haze.
In recent years, solar water heater and air source hot pump water heater have obtained larger development.But when solar radiation is not enough, the heating effect of solar water heater or heating system will be had a greatly reduced quality, conventionally need a set of standby system to ensure rainy weather and the solar radiation reliability of heat-supply system poor time, reduced its energy-saving effect.In addition it is also the obstacle of its further large scale application of restriction that the initial cost that, solar thermal collector is higher and larger erection space require.For air source hot pump water heater or heating system, because its heating efficiency and heating capacity all can the constantly decay with the reduction of outside air temperature, also just reduced the reliability that heats under its low temperature.Current air source heat pump can only utilize airborne heat energy, cannot effectively utilize solar radiant energy, although and in fact winter, many times temperature was very low, intensity of solar radiation is still enough to produce needed hot water.
In view of solar water heater cannot make full use of the problem that low radiated solar energy, air source heat pump cannot utilize solar radiant energy, the technical scheme that solar energy and heat pump techniques are combined has obtained increasing favor.This class technical scheme is mainly divided three classes at present: when (1) solar radiation is strong not, the low-temperature water heating that solar thermal collector is produced is as the evaporation side thermal source of water resource heat pump, improve the efficiency of heat collector and the efficiency of heat pump, when solar radiation is strong, be switched to solar energy and directly heat (as patent CN201220382850.9).Such scheme has just improved the efficiency of solar thermal collector, the problem that heats while not solving without solar energy; (2) adopt the solar thermal collector of direct-expansion type, be that cold-producing medium directly passes in solar thermal collector, can realize like this solar energy directly heats and solar heat pump heating pattern, can reduce certain power consumption of compressor (as patent CN201110388936.2), but still the problem that heats while not solving without solar energy; (3) adopt a direct-expansion type solar energy heat collector and a wind-cooled evaporator, when solar radiation is enough, solar energy directly heats, do not have to move air source heat pump pattern (as patent CN201120054202.6) under the weak condition of the sun or radiation, but such scheme can not be utilized the solar energy under low radiation, can not realize air heat energy directly heat and combining of solar energy and air heat energy heats, high not enough to the Quality degree of effective utilization of solar energy and air heat energy.
It should be noted that, when lower the or outer temperature of the hot water temperature that needs under certain situation is very high (for example, outside summer during 30 ℃ of temperature, produce the low-temperature water heating of 10~20 ℃, for air heat energy across storing season), extraneous air heat energy also can directly heat, and all by air source heat pump, realize at present, cause the energy consumption that heats higher.
Generally speaking, current solar heat pump and air source heat pump technical scheme are utilized more fully aspect the solar energy of different radiation intensity and the air heat energy of different temperatures grade and are also had larger room for improvement in the efficiency with higher.If construct more reasonably technical scheme and operation method in conjunction with the characteristic separately of solar energy and air heat energy and user's thermic load demand characteristic, can significantly improve the utilization ratio of solar energy and air heat energy and utilize degree.
Summary of the invention
Based on the problems referred to above, the present invention proposes a kind of composite solar air source heat pump, utilizes technology to organically combine solar utilization technique and air heat energy, realizes the mutual supplement with each other's advantages of these two kinds of regenerative resources, effectively reduces the initial cost of heating.According to the variation of solar radiation condition and outside air temperature, between heat pipe circulation, heat pump cycle and the combined cycle system thereof of heat pipe circulation, heat pump cycle and the air-source of solar energy, reasonably switch, realize efficient heat supply and domestic hot-water supply.
The first technical scheme of the present invention is as follows:
A composite solar air source heat pump, comprises air source heat pump and solar thermal collector; Described air source heat pump comprises by compressor, condenser, first throttle valve and wind-cooled evaporator and forms successively the air source heat pump circulatory system; It is characterized in that: described composite solar air source heat pump also comprises the first triple valve, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and the second choke valve; The entrance of described the first triple valve is connected with the outlet of compressor and the outlet of wind-cooled evaporator respectively, the outlet of the first triple valve is connected with condenser, described the second valve is in parallel with first throttle valve, and wind-cooled evaporator, the first triple valve, condenser, the 4th valve and the second valve form the air-source heat pipe circulatory system successively; Described the 5th valve, solar thermal collector are connected successively with the first valve, and form successively solar heat tube circulating system with the first triple valve and condenser; Described the second choke valve is in parallel with the 5th valve, and the second choke valve, solar thermal collector, the first valve, compressor, the first triple valve and condenser form the solar heat pump circulatory system successively; The described solar heat pump circulatory system and the air source heat pump circulatory system form solar air source heat pumps parallel circulating system; Described solar heat tube circulating system and the air-source heat pipe circulatory system form solar air source heat pipe parallel circulating system; Described the 3rd entrance of valve and the outlet of solar thermal collector are connected, and the outlet of the 3rd valve is connected with the entrance of the second valve; Described compressor, the first triple valve, condenser, the second choke valve, solar thermal collector, the 3rd valve, first throttle valve and wind-cooled evaporator form solar air source heat pumps series circulation system successively; Described the first triple valve, condenser, the 5th valve, solar thermal collector, the 3rd valve, the second valve and wind-cooled evaporator form solar air source heat pipe series circulation system successively.
The second technical scheme of the present invention is as follows:
A composite solar air source heat pump, comprises air source heat pump and solar thermal collector; Described air source heat pump comprises by compressor, condenser, first throttle valve and wind-cooled evaporator and forms successively the air source heat pump circulatory system; It is characterized in that: described composite solar air source heat pump also comprises the first triple valve, the first valve, the second valve, the 3rd valve, the 4th valve, the 5th valve and the second choke valve; The entrance of described the first triple valve is connected with the outlet of compressor and the outlet of solar thermal collector respectively, the outlet of the first triple valve is connected with condenser, and solar thermal collector, the first triple valve, condenser, the 4th valve and the second valve form solar heat tube circulating system successively; Described the second choke valve is in parallel with the second valve, and solar thermal collector, compressor, the first triple valve, condenser, the 4th valve and the second choke valve form the solar heat pump circulatory system successively; Described the 5th valve is in parallel with first throttle valve, and the 5th valve, wind-cooled evaporator, the first valve, the first triple valve and condenser form the air-source heat pipe circulatory system successively; The described solar heat pump circulatory system and the air source heat pump circulatory system form solar air source heat pumps parallel circulating system; Described solar heat tube circulating system and the air-source heat pipe circulatory system form solar air source heat pipe parallel circulating system; Described the 3rd entrance of valve and the outlet of wind-cooled evaporator are connected, and the outlet of the 3rd valve is connected with the entrance of the second valve; Described compressor, the first triple valve, condenser, first throttle valve, wind-cooled evaporator, the 3rd valve, the second choke valve and solar thermal collector form solar air source heat pumps series circulation system successively; Described the first triple valve, condenser, the 5th valve, wind-cooled evaporator, the 3rd valve, the second valve and solar thermal collector form solar air source heat pipe series circulation system successively.
In above-mentioned two kinds of technical schemes, described solar thermal collector is direct-expansion type solar energy heat collector; Described condenser is water-cooled or air-cooled heat exchanger.
In above-mentioned two kinds of technical schemes, can adopt the second triple valve to replace the 4th valve, the entrance of described the second triple valve is connected with the outlet of condenser, and the outlet of the second triple valve is connected with the entrance of the second choke valve with first throttle valve respectively.
In the first technical scheme, can adopt the 3rd triple valve to replace the first valve and the 3rd valve, described the 3rd entrance of triple valve and the outlet of solar thermal collector are connected, and the outlet of the 3rd triple valve is connected with the entrance of the second valve and the outlet of wind-cooled evaporator respectively.
In the second technical scheme, can adopt the 3rd triple valve to replace the first valve and the 3rd valve, described the 3rd entrance of triple valve and the outlet of wind-cooled evaporator are connected, and the outlet of the 3rd triple valve is connected with the entrance of the second valve and the outlet of solar thermal collector respectively.
The present invention and existing hot water are produced system and are compared tool and have the following advantages:
1. with respect to solar water heating system, combine effective utilization of air heat energy, can reduce the area of solar thermal collector, reduce the energy consumption of auxiliary thermal source; 2. with respect to air source heat pump system, combine effective utilization of solar energy, can reduce the area of wind-cooled evaporator, and solar thermal collector also can serve as evaporimeter, make heat pump more efficient; 3. the utilization of solar energy has various modes, moves solar heat pipe pattern when solar radiation is strong, heats efficiency high; Solar radiation moves solar heat pump pattern in the time of weak, can make full use of the solar energy of low radiation intensity; 4. the utilization of air heat energy has various modes, moves air-source heat pipe pattern when air themperature is high, heats efficiency high; When air themperature reduces, move air source heat pump pattern, make full use of Cryogenic air thermal source; 5. the combination of solar energy and air heat energy also has various modes, the heat pump mode that the heat pump mode of the heat pipe pattern of solar energy and air-source parallel connection, solar energy and air-source parallel connection, the heat pipe pattern that solar energy is connected with air-source and solar energy are connected with air-source.In practical application, should, according to the variation of solar radiation condition, outside air temperature and thermic load demand, realize different mode optimization operation.
Generally speaking, the present invention organically combines solar energy and air source heat pump technology, realizes both mutual supplement with each other's advantages, effectively reduces initial cost and the operation energy consumption of heating, is a kind of heat supply and domestic hot-water's scheme that has application prospect.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the first technical scheme of the present invention.
Fig. 2 is the structural principle schematic diagram of the second technical scheme of the present invention.
Fig. 3 is the solar heat pipe pattern diagram of the first technical scheme provided by the invention.
Fig. 4 is the solar heat pump pattern diagram of the first technical scheme provided by the invention.
Fig. 5 is the air-source heat pipe pattern diagram of the first technical scheme provided by the invention.
Fig. 6 is the air source heat pump pattern diagram of the first technical scheme provided by the invention.
Fig. 7 is the solar energy-air source heat pipe paralleling model schematic diagram of the first technical scheme provided by the invention.
Fig. 8 is the solar-powered-air source heat-pump paralleling model schematic diagram of the first technical scheme provided by the invention.
Fig. 9 is the solar energy-air source heat pipe series model schematic diagram of the first technical scheme provided by the invention.
Figure 10 is the solar-powered-air source heat-pump series model schematic diagram of the first technical scheme provided by the invention.
Wherein: 1-the first triple valve; 2-compressor; 3-wind-cooled evaporator; 4-the second triple valve; 5-condenser; 7-first throttle valve; 8-the second valve; 9-the 3rd valve; 10-the 4th valve; 11-the second choke valve; 12-the 5th valve; 13-solar thermal collector; 14-the 3rd triple valve
The specific embodiment
Below in conjunction with accompanying drawing, structure of the present invention and the method for operation are described further.
Fig. 1 is the structural principle schematic diagram of the first technical scheme of the present invention, comprises air source heat pump and solar thermal collector 13; Described air source heat pump comprises by compressor 2, condenser 6, first throttle valve 7 and wind-cooled evaporator 3 and forms successively the air source heat pump circulatory system; Described composite solar air source heat pump also comprises the first triple valve 1, the first valve 5, the second valve 8, the 3rd valve 9, the 4th valve 10, the 5th valve 12 and the second choke valve 11; The entrance of described the first triple valve 1 is connected with the outlet of wind-cooled evaporator 3 with the outlet of compressor 2 respectively, the outlet of the first triple valve 1 is connected with condenser 6, described the second valve 8 is in parallel with first throttle valve 7, and wind-cooled evaporator 3, the first triple valve 1, condenser 6, the 4th valve 10 and the second valve 8 form the air-source heat pipe circulatory system successively; Described the 5th valve 12, solar thermal collector 13 and the first valve 5 are connected successively, and form successively solar heat tube circulating system with the first triple valve 1 and condenser 6; Described the second choke valve 11 is in parallel with the 5th valve 12, and the second choke valve 11, solar thermal collector 13, the first valve 5, compressor 2, the first triple valve 1 and condenser 6 form the solar heat pump circulatory system successively; The described solar heat pump circulatory system and the air source heat pump circulatory system form solar air source heat pumps parallel circulating system; Described solar heat tube circulating system and the air-source heat pipe circulatory system form solar air source heat pipe parallel circulating system; The entrance of described the 3rd valve 9 is connected with the outlet of solar thermal collector 13, and the outlet of the 3rd valve 9 is connected with the entrance of the second valve 8; Described compressor 2, the first triple valve 1, condenser 6, the second choke valve 11, solar thermal collector 13, the 3rd valve 9, first throttle valve 7 and wind-cooled evaporator 3 form solar air source heat pumps series circulation system successively; Described the first triple valve 1, condenser 6, the 5th valve 12, solar thermal collector 13, the 3rd valve 9, the second valve 8 and wind-cooled evaporator 3 form solar air source heat pipe series circulation system successively.
Described solar thermal collector 13 is direct-expansion type solar energy heat collector; Condenser 6 is water-cooled or air-cooled heat exchanger; Can adopt the second triple valve 4 to replace described the 4th valve 10, the entrance of described the second triple valve 4 is connected with the outlet of condenser 6, and the outlet of the second triple valve 4 is connected with the entrance of the second choke valve 11 with first throttle valve 7 respectively; Also can adopt the 3rd triple valve 14 to replace the first valve 5 and the 3rd valve 9, the entrance of described the 3rd triple valve 14 is connected with the outlet of solar thermal collector 13, and the outlet of the 3rd triple valve 14 is connected with the outlet of wind-cooled evaporator 3 with the entrance of the second valve 8 respectively.
Fig. 2 is the structural principle schematic diagram of the second technical scheme of the present invention, comprises air source heat pump and solar thermal collector 13; Described air source heat pump comprises by compressor 2, condenser 6, first throttle valve 7 and wind-cooled evaporator 3 and forms successively the air source heat pump circulatory system; Described composite solar air source heat pump also comprises the first triple valve 1, the first valve 5, the second valve 8, the 3rd valve 9, the 4th valve 10, the 5th valve 12 and the second choke valve 11; The entrance of described the first triple valve 1 is connected with the outlet of solar thermal collector 13 with the outlet of compressor 2 respectively, the outlet of the first triple valve 1 is connected with condenser 6, and solar thermal collector 13, the first triple valve 1, condenser 6, the 4th valve 10 and the second valve 8 form solar heat tube circulating system successively; Described the second choke valve 11 is in parallel with the second valve 8, and solar thermal collector 13, compressor 2, the first triple valve 1, condenser 6, the 4th valve 10 and the second choke valve 11 form the solar heat pump circulatory system successively; Described the 5th valve 12 is in parallel with first throttle valve 7, and the 5th valve 12, wind-cooled evaporator 3, the first valve 5, the first triple valve 1 and condenser 6 form the air-source heat pipe circulatory system successively; The described solar heat pump circulatory system and the air source heat pump circulatory system form solar air source heat pumps parallel circulating system; Described solar heat tube circulating system and the air-source heat pipe circulatory system form solar air source heat pipe parallel circulating system; The entrance of described the 3rd valve 9 is connected with the outlet of wind-cooled evaporator 3, and the outlet of the 3rd valve 9 is connected with the entrance of the second valve 8; Described compressor 2, the first triple valve 1, condenser 6, first throttle valve 7, wind-cooled evaporator 3, the 3rd valve 9, the second choke valve 11 and solar thermal collector 13 form solar air source heat pumps series circulation system successively; Described the first triple valve 1, condenser 6, the 5th valve 12, wind-cooled evaporator 3, the 3rd valve 9, the second valve 8 and solar thermal collector 13 form solar air source heat pipe series circulation system successively.
Described solar thermal collector 13 is direct-expansion type solar energy heat collector; Condenser 6 is water-cooled or air-cooled heat exchanger; Can adopt the second triple valve 4 to replace described the 4th valve 10, the entrance of described the second triple valve 4 is connected with the outlet of condenser 6, and the outlet of the second triple valve 4 is connected with the entrance of the second choke valve 11 with first throttle valve 7 respectively; Also can adopt the 3rd triple valve 14 to replace the first valve 5 and the 3rd valve 9, the entrance of described the 3rd triple valve 14 is connected with the outlet of wind-cooled evaporator 3, and the outlet of the 3rd triple valve 14 is connected with the outlet of solar thermal collector 13 with the entrance of the second valve 8 respectively.
Fig. 3 is the solar heat pipe pattern diagram of the first technical scheme provided by the invention.The switching that this pattern lower compression machine 2 passes through triple valve 1 is by bypass, and compressor 2 and wind-cooled evaporator 3 are all out of service, and the second valve 8 on air-source branch road and the 4th valve 10 and the 3rd valve 9 are all closed, and first throttle valve 7 and the second choke valve 11 are also closed.The cold-producing medium of condenser 6 outlets is successively by getting back to condenser 6 after the 5th valve 12, solar thermal collector 13, the first valve 5 and triple valve 1, and solar energy solar thermal collector 13 being absorbed by Natural Circulation is transferred in condenser 6 for heating.This mode operation, when solar radiation is stronger, relies on thermosiphon principle to complete the circulation of cold-producing medium, there is no energy resource consumption, has very high heating efficiency.In the second technical scheme, the operation logic of solar heat pipe pattern is identical with the first technical scheme.
Fig. 4 is the solar heat pump pattern diagram of the first technical scheme provided by the invention.When solar radiation weakens when causing solar heat pipe pattern cannot produce temperature required hot water or be not enough to drive cold-producing medium Natural Circulation, can move solar heat pump pattern.Switching by triple valve 1 is communicated with compressor 2, and wind-cooled evaporator 3 still keeps stopping, the second valve 8 on air-source branch road and the 4th valve 10, and the 3rd valve 9 and the 5th valve 12 all close, first throttle valve 7 also cuts out.The cold-producing medium of condenser 6 outlets is successively by getting back to condenser 6 after the second choke valve 11, solar thermal collector 13, the first valve 5, compressor 2 and triple valve 1.Although this mode operation is when solar radiation is not too strong, because the solar heat pump circulatory system has higher evaporating temperature, it is also higher that it heats COP.In the second technical scheme, the operation logic of solar heat pump pattern is identical with the first technical scheme.
Fig. 5 is the air-source heat pipe pattern diagram of the first technical scheme provided by the invention.When solar radiation is weak or hot water temperature's not high (producing low-temperature water heating to soil concurrent heating as concurrent heating unit) of rainy weather and evening and demand and outside air temperature higher in, can move air-source heat pipe pattern.This pattern lower compression machine 2 is by bypass, and wind-cooled evaporator 3 is opened operation, and the 5th valve 12, the first valve 5 and the 3rd valve 9 on solar energy branch road are all closed, and first throttle valve 7 and the second choke valve 11 are also closed.The cold-producing medium of condenser 6 outlets is successively by getting back to condenser 6 after the 4th valve 10, the second valve 8, wind-cooled evaporator 3 and triple valve 1, and air heat energy wind-cooled evaporator 3 being absorbed by Natural Circulation is transferred in condenser 6 for heating.Because this pattern relies on thermosiphon principle, complete the circulation of cold-producing medium, only need to consume a small amount of fan energy consumption, also there is very high heating efficiency.In the second technical scheme, the operation logic of air-source heat pipe pattern is identical with the first technical scheme.
Fig. 6 is the air source heat pump pattern diagram of the first technical scheme provided by the invention.When solar radiation is weak or in rainy weather and evening but when being not enough to start air-source heat pipe pattern, can move air source heat pump pattern.Switching by triple valve 1 is communicated with compressor 2, and wind-cooled evaporator 3 is held open operation, the 5th valve 12 on solar energy branch road, the first valve 5, and the second valve 8 and the 3rd valve 9 all close, the second choke valve 11 also cuts out.The cold-producing medium of condenser 6 outlets is successively by getting back to condenser 6 after the 4th valve 10, first throttle valve 7, wind-cooled evaporator 3, compressor 2 and triple valve 1.Air heat energy wind-cooled evaporator 3 being absorbed by Natural Circulation is transferred in condenser 6 for heating.Because this pattern efficiency in evening that only temperature is very low is in the winter time slightly poor, when temperature is not too low, still there is the higher COP that heats.In the second technical scheme, the operation logic of air source heat pump pattern is identical with the first technical scheme.
Fig. 7 is the solar energy-air source heat pipe paralleling model schematic diagram of the first technical scheme provided by the invention.During the broiling summer daytime, solar radiation is stronger, and outside air temperature is also higher, if the hot water temperature of demand not high (as concurrent heating unit is produced low-temperature water heating to soil concurrent heating) can move solar energy-air source heat pipe paralleling model.This pattern lower compression machine 2 is by bypass, and wind-cooled evaporator 3 is opened operation, and the 3rd valve 9, first throttle valve 7 and the second choke valve 11 are closed.The cold-producing medium of condenser 6 outlets is divided into two-way, one tunnel is successively by the 4th valve 10, the second valve 8, wind-cooled evaporator 3, another road is successively by the 5th valve 12, solar thermal collector 13, the first valve 5, and then two branch roads are got back to condenser 6 by triple valve 1 after mixing.Together with the solar energy that the air heat energy that this pattern absorbs wind-cooled evaporator 3 by two Natural Circulation in parallel absorbs with solar thermal collector 13, transfer in condenser 6 for heating, rely on thermosiphon principle to complete the circulation of cold-producing medium, only need to consume a small amount of fan energy consumption, not only there is very high heating efficiency, and there is very large heating capacity, can shorten the time of heating.In the second technical scheme, the operation logic of solar energy-air source heat pipe paralleling model is identical with the first technical scheme.
Fig. 8 is the solar-powered-air source heat-pump paralleling model schematic diagram of the first technical scheme provided by the invention.When solar radiation and outside air temperature are all not enough to drive the Natural Circulation of cold-producing medium but still have certain solar energy and can provide utilization, can move solar-powered-air source heat-pump paralleling model.Switching by triple valve 1 is communicated with compressor 2, and wind-cooled evaporator 3 is held open operation, and the second valve 8, the 3rd valve 9 and the 5th valve 12 are all closed.The cold-producing medium of condenser 6 outlets is divided into two-way, one tunnel is successively by the 4th valve 10, first throttle valve 7, wind-cooled evaporator 3, another road is successively by the second choke valve 11, solar thermal collector 13, the first valve 5, and then two branch roads are got back to condenser 6 by compressor 2 and triple valve 1 after mixing.This pattern has realized making full use of of solar energy and air heat energy by the solar heat pump circulatory system in parallel and the air source heat pump circulatory system, has higher COP and the larger heating capacity of heating.In the second technical scheme, the operation logic of solar-powered-air source heat-pump paralleling model is identical with the first technical scheme.
Fig. 9 is the solar energy-air source heat pipe series model schematic diagram of the first technical scheme provided by the invention.Solar energy-air source heat pipe paralleling model has certain control requirement to the distribution of cold-producing medium, and the distribution of the cold-producing medium of solar energy-air source heat pipe series model is relatively simple.This pattern lower compression machine 2 is by bypass, and wind-cooled evaporator 3 is opened operation, and the first valve 5 and the 4th valve 10 are closed, and first throttle valve 7 and the second choke valve 11 are also closed.The cold-producing medium of condenser 6 outlets is got back to condenser 6 by the 5th valve 12, solar thermal collector 13, the 3rd valve 9, the second valve 8, wind-cooled evaporator 3 and triple valve 1 successively.This pattern is transferred in condenser 6 for heating together with the solar energy of the air heat energy of wind-cooled evaporator 3 absorptions and solar thermal collector 13 absorptions by the Natural Circulation of series connection, rely on thermosiphon principle to complete the circulation of cold-producing medium, only need to consume a small amount of fan energy consumption, not only there is very high heating efficiency, and there is very large heating capacity, can shorten the time of heating.In the second technical scheme, the operation logic of solar energy-air source heat pipe series model is identical with the first technical scheme, and difference is only that cold-producing medium enters the sequencing of solar thermal collector 13 and wind-cooled evaporator 3.
Figure 10 is the solar-powered-air source heat-pump series model schematic diagram of the first technical scheme provided by the invention.When solar radiation and outside air temperature are all not enough to drive the Natural Circulation of cold-producing medium but still have certain solar energy and can provide utilization, if make every effort to cold-producing medium, distribute and control simply, can move solar-powered-air source heat-pump series model.Switching by triple valve 1 is communicated with compressor 2, and wind-cooled evaporator 3 is held open operation, and the first valve 5, the second valve 8, the 4th valve 10 and the 5th valve 12 are all closed.The cold-producing medium of condenser 6 outlets is got back to condenser 6 by the second choke valve 11, solar thermal collector 13, the 3rd valve 9, first throttle valve 7, wind-cooled evaporator 3, compressor 2 and triple valve 1 successively.This pattern has realized making full use of of solar energy and air heat energy by the solar heat pump circulatory system and the air source heat pump circulatory system of series connection, has higher COP and the larger heating capacity of heating.In the second technical scheme, the operation logic of solar-powered-air source heat-pump series model is identical with the first technical scheme, and difference is only: in the first technical scheme, cold-producing medium is introduced into solar thermal collector 13 and enters wind-cooled evaporator 3 again; And in the second technical scheme, cold-producing medium is introduced into wind-cooled evaporator 3 and enters solar thermal collector 13 again.

Claims (7)

1. a composite solar air source heat pump, comprises air source heat pump and solar thermal collector (13); Described air source heat pump comprises the air source heat pump circulatory system consisting of compressor (2), condenser (6), first throttle valve (7) and wind-cooled evaporator (3); It is characterized in that: described composite solar air source heat pump also comprises the first triple valve (1), the first valve (5), the second valve (8), the 3rd valve (9), the 4th valve (10), the 5th valve (12) and the second choke valve (11); The entrance of described the first triple valve (1) is connected with the outlet of wind-cooled evaporator (3) with the outlet of compressor (2) respectively, the outlet of the first triple valve (1) is connected with condenser (6), and described the second valve (8) is in parallel with first throttle valve (7); Described wind-cooled evaporator (3), the first triple valve (1), condenser (6), the 4th valve (10) and the second valve (8) form the air-source heat pipe circulatory system successively; Described the 5th valve (12), solar thermal collector (13) are connected successively with the first valve (5), and form successively solar heat tube circulating system with the first triple valve (1) and condenser (6); Described the second choke valve (11) is in parallel with the 5th valve (12), and the second choke valve (11), solar thermal collector (13), the first valve (5), compressor (2), the first triple valve (1) and condenser (6) form the solar heat pump circulatory system successively; The described solar heat pump circulatory system and the air source heat pump circulatory system form solar air source heat pumps parallel circulating system; Described solar heat tube circulating system and the air-source heat pipe circulatory system form solar air source heat pipe parallel circulating system; The entrance of described the 3rd valve (9) is connected with the outlet of solar thermal collector (13), and the outlet of the 3rd valve (9) is connected with the entrance of the second valve (8); Described compressor (2), the first triple valve (1), condenser (6), the second choke valve (11), solar thermal collector (13), the 3rd valve (9), first throttle valve (7) and wind-cooled evaporator (3) form solar air source heat pumps series circulation system successively; Described the first triple valve (1), condenser (6), the 5th valve (12), solar thermal collector (13), the 3rd valve (9), the second valve (8) and wind-cooled evaporator (3) form solar air source heat pipe series circulation system successively.
2. a composite solar air source heat pump, comprises air source heat pump and solar thermal collector (13); The compressor that described air source heat pump comprises (2), condenser (6), first throttle valve (7) and wind-cooled evaporator (3) form the air source heat pump circulatory system successively; It is characterized in that: described composite solar air source heat pump also comprises the first triple valve (1), the first valve (5), the second valve (8), the 3rd valve (9), the 4th valve (10), the 5th valve (12) and the second choke valve (11); The entrance of described the first triple valve (1) is connected with the outlet of solar thermal collector (13) with the outlet of compressor (2) respectively, the outlet of the first triple valve (1) is connected with condenser (6), and solar thermal collector (13), the first triple valve (1), condenser (6), the 4th valve (10) and the second valve (8) form solar heat tube circulating system successively; Described the second choke valve (11) is in parallel with the second valve (8), and solar thermal collector (13), compressor (2), the first triple valve (1), condenser (6), the 4th valve (10) and the second choke valve (11) form the solar heat pump circulatory system successively; Described the 5th valve (12) is in parallel with first throttle valve (7), and the 5th valve (12), wind-cooled evaporator (3), the first valve (5), the first triple valve (1) and condenser (6) form the air-source heat pipe circulatory system successively; The described solar heat pump circulatory system and the air source heat pump circulatory system form solar air source heat pumps parallel circulating system; Described solar heat tube circulating system and the air-source heat pipe circulatory system form solar air source heat pipe parallel circulating system; The entrance of described the 3rd valve (9) is connected with the outlet of wind-cooled evaporator (3), and the outlet of the 3rd valve (9) is connected with the entrance of the second valve (8); Described compressor (2), the first triple valve (1), condenser (6), first throttle valve (7), wind-cooled evaporator (3), the 3rd valve (9), the second choke valve (11) and solar thermal collector (13) form solar air source heat pumps series circulation system successively; Described the first triple valve (1), condenser (6), the 5th valve (12), wind-cooled evaporator (3), the 3rd valve (9), the second valve (8) and solar thermal collector (13) form solar air source heat pipe series circulation system successively.
3. a kind of composite solar air source heat pump according to claim 1 and 2, is characterized in that: described solar thermal collector (13) is direct-expansion type solar energy heat collector.
4. a kind of composite solar air source heat pump according to claim 1 and 2, is characterized in that: described condenser (6) is water-cooled or air-cooled heat exchanger.
5. a kind of composite solar air source heat pump according to claim 1 and 2, it is characterized in that: adopt the second triple valve (4) to replace the 4th valve (10), the entrance of described the second triple valve (4) is connected with the outlet of condenser (6), and the outlet of the second triple valve (4) is connected with the entrance of the second choke valve (11) with first throttle valve (7) respectively.
6. a kind of composite solar air source heat pump according to claim 1, it is characterized in that: adopt the 3rd triple valve (14) to replace the first valve (5) and the 3rd valve (9), the entrance of described the 3rd triple valve (14) is connected with the outlet of solar thermal collector (13), and the outlet of the 3rd triple valve (14) is connected with the outlet of wind-cooled evaporator (3) with the entrance of the second valve (8) respectively.
7. a kind of composite solar air source heat pump according to claim 2, it is characterized in that: adopt the 3rd triple valve (14) to replace the first valve (5) and the 3rd valve (9), the entrance of described the 3rd triple valve (14) is connected with the outlet of wind-cooled evaporator (3), and the outlet of the 3rd triple valve (14) is connected with the outlet of solar thermal collector (13) with the entrance of the second valve (8) respectively.
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CN104964373A (en) * 2015-07-23 2015-10-07 广东美的暖通设备有限公司 Air-conditioning system and control method thereof
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CN106123396A (en) * 2016-08-19 2016-11-16 山东力诺瑞特新能源有限公司 The heat pump that a kind of solar energy heating/vaporizer is combined with finned evaporator
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CN106524502A (en) * 2016-12-19 2017-03-22 西安交通大学 Direct-expansion solar-assisted ejector synergistic heat pump hot water system and control method
CN107449179A (en) * 2017-07-31 2017-12-08 南京师范大学 A kind of solar heat pump heating system of integrated separation formula heat pipe
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CN108870742A (en) * 2017-05-10 2018-11-23 青岛经济技术开发区海尔热水器有限公司 A kind of novel Double energy source water heating system and control method
CN110006184A (en) * 2019-01-24 2019-07-12 东南大学 A kind of integrated system of solar water heater and Teat pump boiler
CN110553421A (en) * 2018-05-30 2019-12-10 酒泉蓝能太空能科技有限公司 solar air energy heat pump unit
CN111156695A (en) * 2020-01-08 2020-05-15 北京建筑大学 Solar instant heating heat pump water heater
CN111156696A (en) * 2020-01-08 2020-05-15 北京建筑大学 Solar instant heating heat pump water heater
CN115164408A (en) * 2022-06-30 2022-10-11 青岛海尔空调电子有限公司 Method, device, heating system and storage medium for controlling a heating system

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CN104964373A (en) * 2015-07-23 2015-10-07 广东美的暖通设备有限公司 Air-conditioning system and control method thereof
CN105180434A (en) * 2015-11-03 2015-12-23 天津商业大学 Composite heat source heat pump water heater
CN105485906A (en) * 2015-12-18 2016-04-13 东南大学 Water heating system through electricity generation of photovoltaic solar heat pump
CN105485906B (en) * 2015-12-18 2018-06-19 东南大学 A kind of light-volt solar heat pump power generation hot-water heating system
CN105402966A (en) * 2015-12-31 2016-03-16 清华大学 Solar energy-based air source heat pump
CN105402966B (en) * 2015-12-31 2018-05-11 清华大学 A kind of solar air source heat pumps
CN105783278A (en) * 2016-04-20 2016-07-20 太原理工大学 Fluorine pump and heat pump composite heat-accumulation type direct expansion type solar water heating system
CN106016771A (en) * 2016-07-18 2016-10-12 常州海卡太阳能热泵有限公司 Solar air source heat pump triple co-generation system and control method thereof
CN106123396A (en) * 2016-08-19 2016-11-16 山东力诺瑞特新能源有限公司 The heat pump that a kind of solar energy heating/vaporizer is combined with finned evaporator
CN106440517A (en) * 2016-08-31 2017-02-22 北京建筑大学 Direct expansion type heat pump device and process control method of heat collection liquid
CN106440517B (en) * 2016-08-31 2018-10-12 北京建筑大学 The flow control method of direct-expansion type heat pump assembly and thermal-arrest liquid
CN106524502A (en) * 2016-12-19 2017-03-22 西安交通大学 Direct-expansion solar-assisted ejector synergistic heat pump hot water system and control method
CN106524502B (en) * 2016-12-19 2019-05-07 西安交通大学 The injector synergy heat pump hot-water system and control method of direct-expansion type solar energy auxiliary
CN108870742A (en) * 2017-05-10 2018-11-23 青岛经济技术开发区海尔热水器有限公司 A kind of novel Double energy source water heating system and control method
CN107449179A (en) * 2017-07-31 2017-12-08 南京师范大学 A kind of solar heat pump heating system of integrated separation formula heat pipe
CN107477913A (en) * 2017-09-08 2017-12-15 浙江智恩电子科技有限公司 Direct expanding solar heating pump system and its control method
CN110553421A (en) * 2018-05-30 2019-12-10 酒泉蓝能太空能科技有限公司 solar air energy heat pump unit
CN110006184A (en) * 2019-01-24 2019-07-12 东南大学 A kind of integrated system of solar water heater and Teat pump boiler
CN111156695A (en) * 2020-01-08 2020-05-15 北京建筑大学 Solar instant heating heat pump water heater
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CN115164408A (en) * 2022-06-30 2022-10-11 青岛海尔空调电子有限公司 Method, device, heating system and storage medium for controlling a heating system

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