CN101581516B - Solar auxiliary air source heat pump device capable of realizing multimode operation - Google Patents
Solar auxiliary air source heat pump device capable of realizing multimode operation Download PDFInfo
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- CN101581516B CN101581516B CN 200910033558 CN200910033558A CN101581516B CN 101581516 B CN101581516 B CN 101581516B CN 200910033558 CN200910033558 CN 200910033558 CN 200910033558 A CN200910033558 A CN 200910033558A CN 101581516 B CN101581516 B CN 101581516B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E10/40—Solar thermal energy, e.g. solar towers
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Abstract
The invention provides a solar auxiliary air source heat pump device capable of realizing multimode operation. The system comprises a refrigerant circulation loop, a solar heat source loop and a solarcold-hot water loop. Solar energy is organically combined with an air source heat pump to solve the stability problem of solar auxiliary air source heat pump, realize high efficiency utilization of s olar energy, simultaneously realize improvement of solar energy on performance of a heat pump system, and develop the solar auxiliary air source heat pump device capable of realizing multimode operation.
Description
Technical field
The present invention relates to a kind of solar energy and air source heat pump be organically combined, realize the solar energy highly effective utilization, improve the air source heat pump performance simultaneously, can be the device of building cooling, heat supply.The technical field that belongs to solar energy utilization, refrigerated air-conditioning system design and make.
Background technology
Along with the raising of expanding economy, people's living standard, middle and lower reach of Yangtze River regional architecture heat supply in winter demand is increasing.If apply mechanically the heating mode in the north, will make that the originally very outstanding energy problem of China is severe more, therefore need to seek the breakthrough of heating system.In this area, solar energy resources is relatively abundant, solar energy highly effective if can be applied to the heating of this area building, will and solve significant to the alleviation of this problem.Solar energy has characteristics such as intermittent and unstability, makes the large-scale application of solar energy be subjected to severely restricts.Advantages such as it is easy to use, flexible, energy-efficient that air source heat pump has.Therefore, solar energy is combined with air source heat pump, form solar auxiliary air source heat pump, can remedy the deficiency of solar energy to building heating.
Existing solar auxiliary air source heat pump can be divided into direct-expansion type and non-direct-expansion type.In the direct-expansion type system, cold-producing medium discharges condensation heat to heating object by heat pump cycle as the directly heat absorption evaporation in solar energy heating/evaporimeter of solar energy heating medium again.Because of the intermittence that solar radiation had, cause this systematic function fluctuation bigger.In the non-direct-expansion type system, solar-assisted heat pump can be divided into three kinds of tandem, parallel and double heat sources again.Tandem and double heat source are formal in the utilization of solar energy, all are with the low-grade heat source of solar energy as heat pump, and the utilization of solar energy all needs to pay a price and further promotes taste by the heat pump consumed power.And parallel, the utilization and the heat pump of solar energy are independently of one another, can't realize that solar energy improves the heat pump performance.
Therefore, how solar energy and air source heat pump are combined, resolve the stability of solar auxiliary air source heat pump system, fully efficiently utilize solar energy, realize the improvement of solar energy simultaneously, become the technical barrier that those skilled in the art press for solution the heat pump performance.
Summary of the invention
Technical problem: the purpose of this invention is to provide a kind of solar auxiliary air source heat pump device of realizing multi-mode operation, solar energy and air source heat pump are combined, solve the stability problem of solar auxiliary air source heat pump, realize the efficient utilization of solar energy, realize that simultaneously solar energy improves the heat pump performance, develops the solar auxiliary air source heat pump device that can realize multi-mode operation.
Technical scheme: the present invention can realize that the solar auxiliary air source heat pump device of multi-mode operation comprises refrigerant circulation loop, solar heat resource loop, solar cold hot-water return three parts.Refrigerant circulation loop comprises compressor, cross valve, first heat exchanger, second heat exchanger, first magnetic valve, second magnetic valve, first check valve, second check valve, reservoir, filter, electric expansion valve, the 3rd check valve, the 4th check valve, the 3rd heat exchanger, gas-liquid separator and relevant connection pipeline thereof.Compressor output end connects the cross valve first input end, after coming out, divides cross valve first output two-way, one the tunnel connects the first heat exchanger input, first magnetic valve of leading up in addition connects second heat exchanger, first output, the second heat exchanger first input end merges the back by second magnetic valve and the first heat exchanger output and connects the reservoir input by first check valve, the first heat exchanger output is also by first check valve simultaneously, second check valve connects the 3rd heat exchanger first input end, the output of reservoir connects the electric expansion valve input by filter, the electric expansion valve output connects the 3rd heat exchanger first input end by the 4th check valve, the electric expansion valve output also connects the first heat exchanger output by the 3rd check valve simultaneously, the 3rd heat exchanger first output termination cross valve second input, the cross valve second output termination gas-liquid separator input, gas-liquid separator output termination compressor input; The solar heat resource loop comprises solar thermal collector, second heat exchanger, the 3rd magnetic valve, the 5th magnetic valve, first water pump and relevant connection pipeline thereof.Second heat exchanger, second output connects the solar thermal collector input by the 3rd magnetic valve, and the solar thermal collector output connects the first water pump input by the 5th magnetic valve, first water pump output termination, second heat exchanger, second input; The solar cold hot-water return comprises solar thermal collector, the 4th magnetic valve, the 6th magnetic valve, the 7th magnetic valve, the 8th magnetic valve, the 9th magnetic valve, the 3rd heat exchanger, second water pump and relevant connection pipeline thereof.Hot and cold water backwater end is divided into two-way, and the 9th magnetic valve of leading up to connects the 3rd heat exchanger second input; Another road merges by the 8th magnetic valve and the 3rd heat exchanger second output, two-way is divided into two-way again after merging: the 4th magnetic valve of leading up to connects the solar thermal collector input, the solar thermal collector output connects the second water pump input by the 6th magnetic valve, the 7th magnetic valve of leading up in addition also connects the second water pump input, second water pump output termination hot and cold water water side.In the hot and cold water water side first temperature sensor is housed, second temperature sensor is housed at hot and cold water backwater end.
The present invention can realize that the solar auxiliary air source heat pump device of multi-mode operation comprises three closed circuits: refrigerant circulation loop, solar heat resource loop, solar cold hot-water return.Concrete grammar of the present invention is:
Winter heating's operation, when there not being the solar time, refrigerant circulation loop, solar cold hot-water return are worked, and the solar heat resource loop is not worked.In the refrigerant circulation loop, cold-producing medium is sucked the compression back by compressor and discharges, enter the 3rd heat exchanger through behind the cross valve, cold-producing medium is emitted the heat condensation therein, the hot water temperature is raise, cold-producing medium is successively through entering in first heat exchanger behind second check valve, reservoir, filter, electric expansion valve, the 3rd check valve then, cold-producing medium evaporates the heat that absorbs air therein, fully after the evaporation, cold-producing medium flows out from first heat exchanger, once more by cross valve, enter behind the gas-liquid separator by compressor suck, compression circulation once more.In the solar cold hot-water return, hot water enters the 3rd heat exchanger through the 9th magnetic valve after hot and cold water backwater end enters unit, hot water in the 3rd heat exchanger with the cold-producing medium heat exchange, temperature raises, through (hot water no longer enters solar thermal collector) behind the 7th magnetic valve, sucked the pressurization back by second water pump and send after hot water comes out from the 3rd heat exchanger from the hot and cold water water side.
When hour (radiation loss of heat collector when the solar radiation available heat is less than or equal to that the hot water temperature is 45 ℃ in the solar thermal collector of intensity of solar radiation, the solar radiation available heat refers to hot water absorbent heat in solar thermal collector), refrigerant circulation loop, solar heat resource loop, solar cold hot-water return are all worked.In the refrigerant circulation loop, cold-producing medium is sucked the compression back by compressor and discharges, enter the 3rd heat exchanger through behind the cross valve, cold-producing medium is emitted the heat condensation therein, and the hot water temperature is raise, and cold-producing medium is successively through being divided into two-way behind second check valve, reservoir, filter, electric expansion valve, the 3rd check valve then, one the tunnel enters first heat exchanger, cold-producing medium evaporates the heat that absorbs air therein, after the evaporation, flows out from first heat exchanger fully.Other one the tunnel enters second heat exchanger through second magnetic valve, cold-producing medium evaporates therein, absorb the heat of hot water in the solar heat resource loop, fully after the evaporation, flow out from second heat exchanger, through passing through cross valve once more behind first magnetic valve with after the refrigerant mixed that flows out from first heat exchanger, enter behind the gas-liquid separator by compressor suck, compression circulation once more.In the solar heat resource loop, hot water absorbs solar energy from solar thermal collector, temperature enters second heat exchanger through the 5th magnetic valve, first water pump after raising, hot water therein with the cold-producing medium heat exchange, emit heat, temperature reduces, and hot water enters solar thermal collector through the 3rd magnetic valve after second heat exchanger comes out, hot water absorbs heat once more in solar thermal collector, so circulation.In the solar cold hot-water return, hot water enters the 3rd heat exchanger through the 9th magnetic valve after hot and cold water backwater end enters unit, hot water in the 3rd heat exchanger with the cold-producing medium heat exchange, temperature raises, through (hot water no longer enters solar thermal collector) behind the 7th magnetic valve, sucked the pressurization back by second water pump and send after hot water comes out from the 3rd heat exchanger from the hot and cold water water side.
When intensity of solar radiation is big (the solar radiation available heat greater than solar thermal collector in the radiation loss of the heat collector of hot water temperature when being 45 ℃, produce 5 ℃ of temperature rises therein but can not satisfy hot water), refrigerant circulation loop, the work of solar cold hot-water return, the solar heat resource loop is not worked.In the refrigerant circulation loop, cold-producing medium is sucked the compression back by compressor and discharges, enter the 3rd heat exchanger through behind the cross valve, cold-producing medium is emitted the heat condensation therein, the hot water temperature is raise, cold-producing medium is successively through entering in first heat exchanger behind second check valve, reservoir, filter, electric expansion valve, the 3rd check valve then, cold-producing medium evaporates the heat that absorbs air therein, fully after the evaporation, flow out from first heat exchanger, pass through cross valve once more, enter behind the gas-liquid separator by compressor suck, compression circulation once more.In the solar cold hot-water return, hot water enters the 3rd heat exchanger through the 9th magnetic valve after hot and cold water backwater end enters unit, hot water in the 3rd heat exchanger with the cold-producing medium heat exchange, temperature raises, hot water enters solar thermal collector through the 4th magnetic valve after the 3rd heat exchanger comes out, absorb solar heat, through the 6th magnetic valve, sucked the pressurization back by second water pump then and send after temperature raises from the hot and cold water water side.
When intensity of solar radiation is enough big (solar thermal collector can satisfy heat supply water separately and produce 5 ℃ of temperature rises therein), refrigerant circulation loop, solar heat resource loop are not worked, the work of solar cold hot-water return.In the solar cold hot-water return, hot water will enter solar thermal collector through the 8th magnetic valve, the 4th magnetic valve respectively after hot and cold water backwater end enters unit, absorb solar heat, through behind the 6th magnetic valve, hot water was sucked the pressurization back by second water pump and sends from the hot and cold water water side after temperature raise.
Summer refrigerating operaton, the work of refrigerant circulation loop, solar cold hot-water return, the solar heat resource loop is not worked.In the refrigerant circulation loop, cold-producing medium is sucked the compression back by compressor and discharges, enter first heat exchanger through behind the cross valve, cold-producing medium therein with the air heat exchange, emit the heat condensation, then successively through entering in the 3rd heat exchanger behind first check valve, reservoir, filter, electric expansion valve, the 4th check valve, cold-producing medium therein with the chilled water heat exchange, evaporation absorbs heat, produce chilled water, pass through cross valve after cold-producing medium evaporates fully once more, enter behind the gas-liquid separator by compressor suck, compression circulation once more.In the solar cold hot-water return, chilled water enters the 3rd heat exchanger through the 9th magnetic valve after hot and cold water backwater end enters unit, chilled water in the 3rd heat exchanger with the cold-producing medium heat exchange, temperature reduces, and is sent from the hot and cold water water side through being sucked the pressurization back by second water pump behind the 7th magnetic valve again.Solar thermal collector will not worked this moment.
The present invention can realize that the solar auxiliary air source heat pump device of multi-mode operation is in heat supplying process, as long as having realized solar radiation just can efficiently utilize, when the solar radiation available heat is less than or equal to that the hot water temperature is 45 ℃ in the solar thermal collector during radiation loss of heat collector, this device passes through solar heat as the heat pump thermal source, the evaporating temperature of raising system, thereby the performance of raising system.When the solar radiation available heat greater than solar thermal collector in the radiation loss of the heat collector of hot water temperature when being 45 ℃, but can not satisfy hot water and produce 5 ℃ of temperature rises therein the time, in whole hot water heating process, air source heat pump plays the effect of series connection with solar thermal collector, heat pump is preceding, solar thermal collector after, 5 ℃ of temperature rises that hot water produces in unit are shared by heat pump condenser and solar thermal collector two parts.Solar thermal collector is born certain hot water temperature rise, then the hot water temperature rise born of heat pump just reduces that (heat pump takes varying capacity to regulate, institute's hot water temperature rise of bearing is more little, the heat pump wasted work is just few more), it is the hot water effluent's temperature reduction in heat pump the 3rd heat exchanger, cause the condensation temperature of heat pump to reduce, thereby heat pump efficiency is improved, realize energy-conservation), in this case, the hot water temperature who enters solar thermal collector is more than 40 ℃, therein the heat that is absorbed, be directly used in and produce 45 ℃ hot water, the hot water temperature enters air conditioning terminal after raising, and can immediately solar heat be passed to indoor, thereby realize the efficient utilization of solar energy, the utilization of solar energy does not need to consume other energy (only consuming a small amount of pump merit) in this process.When intensity of solar radiation is enough big, when solar thermal collector can satisfy heat supply water separately and produces 5 ℃ of temperature rises therein, air source heat pump will quit work, and this moment, the heating-amount of building was all born by solar energy.
Beneficial effect: the present invention relates to a kind of solar auxiliary air source heat pump device of realizing multi-mode operation, realized that solar energy combines with the complete of air source heat pump, thoroughly solves the intermittence and the instability problem of solar heating.Realized that under various different intensities of solar radiation when solar energy highly effective utilized, the efficient of source pump also was greatly improved, thereby realizes energy-conservation.This device also has simple in structure, compact, is convenient to realize the integrated of solar energy utilization and building.
Description of drawings
Fig. 1 is the solar auxiliary air source heat pump device schematic diagram that the present invention can realize multi-mode operation.
Have among Fig. 1: compressor 1; Cross valve 2; Cross valve first input end 2a; The cross valve first output 2b; The cross valve second input 2c; The cross valve second output 2d; First heat exchanger 3; The first heat exchanger input 3a; The first heat exchanger output 3b; Second heat exchanger 4; The second heat exchanger first input end 4a; Second heat exchanger, the first output 4b; Second heat exchanger, the second input 4c; Second heat exchanger, the second output 4d; First magnetic valve 5; Second magnetic valve 6; First check valve 7; Second check valve 8; Reservoir 9; Filter 10; Electric expansion valve 11; The 3rd check valve 12; The 4th check valve 13; The 3rd heat exchanger 14; The 3rd heat exchanger first input end 14a; The 3rd heat exchanger first output 14b; The 3rd heat exchanger second input 14c; The 3rd heat exchanger second output 14d; Gas-liquid separator 15; Solar thermal collector 16; The 3rd magnetic valve 17; The 4th magnetic valve 18; The 5th magnetic valve 19; The 6th magnetic valve 20; The 7th magnetic valve 21; The 8th magnetic valve 22; The 9th magnetic valve 23; First water pump 24; Second water pump 25; First temperature sensor 26; Second temperature sensor 27.
The specific embodiment
1 further specify the specific embodiment of the present invention in conjunction with the accompanying drawings, the present invention can realize that the solar auxiliary air source heat pump device of multi-mode operation comprises refrigerant circulation loop, solar heat resource loop, solar cold hot-water return three parts.Concrete method of attachment is: compressor 1 output termination cross valve first input end 2a, after coming out, divides the cross valve first output 2b two-way, one the tunnel meets the first heat exchanger input 3a, first magnetic valve 5 of leading up in addition meets second heat exchanger, the first output 4b, the second heat exchanger first input end 4a merges the back by second magnetic valve 6 and first heat exchanger, the first output 3b and connects reservoir 9 inputs by first check valve 7, the first heat exchanger output 3b is also by first check valve 7 simultaneously, second check valve 8 meets the 3rd heat exchanger first input end 14a, reservoir 9 outputs connect electric expansion valve 11 inputs by filter 10, electric expansion valve 11 outputs meet the 3rd heat exchanger input 14a by the 4th check valve 13, electric expansion valve 11 outputs also meet the first heat exchanger output 3b by the 3rd check valve 12 simultaneously, the 3rd heat exchanger first output 14b meets the cross valve second input 2c, the cross valve second output 2d connects gas-liquid separator 15 inputs, gas-liquid separator 15 output termination compressors 1 input; Second heat exchanger, the second output 4d connects solar thermal collector 16 inputs by the 3rd magnetic valve 17, and solar thermal collector 16 outputs connect first water pump, 24 inputs by the 5th magnetic valve 19, first water pump, 24 output terminations, second heat exchanger, the second input 4c; Hot and cold water backwater end is divided into two-way: the 9th magnetic valve 23 of leading up to meets the 3rd heat exchanger second input 14c; Leading up to the 8th magnetic valve 22 and the 3rd heat exchanger second output 14d in addition merges, two-way is divided into two-way again after merging: the 4th magnetic valve 18 of leading up to connects solar thermal collector 16 inputs, solar thermal collector 16 outputs connect second water pump, 25 inputs after through the 6th magnetic valve 20, the 7th magnetic valve 21 of leading up in addition also connects second water pump, 25 inputs, second water pump, 25 output termination hot and cold water water sides.In the hot and cold water water side first temperature sensor 26 is housed, second temperature sensor 27 is housed at hot and cold water backwater end.
Second heat exchanger 14 of air source heat pump system is realized tandem workings with solar thermal collector 16, and second heat exchanger 14 is preceding, solar thermal collector 16 after.Solar thermal collector 16, the 3rd magnetic valve 17, the 4th magnetic valve 18, first water pump 24, second heat exchanger 4 constitute the solar heat resource loop, make solar thermal collector can realize that the direct heating of heat supply water can be used as the low-temperature heat source into air source heat pump again.Compressor 1 is a variable displacement compressor.Solar thermal collector 16 is taked the low power solar concentrating collector.
Winter heating's operation, when there not being the solar time: cold-producing medium is discharged after being sucked compression by compressor 1 in the refrigerant circulation loop, enter the 3rd heat exchanger 14 through behind the cross valve 2, cold-producing medium is emitted the heat condensation therein, the hot water temperature is raise, cold-producing medium is successively through second check valve 8 then, reservoir 9, filter 10, electric expansion valve 11, enter in first heat exchanger 3 (this moment first magnetic valve 5 behind the 3rd check valve 12, second magnetic valve 6 cuts out), cold-producing medium evaporates the heat that absorbs air therein, fully after the evaporation, flow out from first heat exchanger 3, by cross valve 2, enter gas-liquid separator 15 backs and sucked once more by compressor 1, compression is circulation once more.Hot water enters the 3rd heat exchanger 14 (this moment, the 8th magnetic valve 22 cut out) through the 9th magnetic valve 23 in the solar cold hot-water return after hot and cold water backwater end enters unit, hot water in the 3rd heat exchanger 14 with the cold-producing medium heat exchange, temperature raises, and hot water comes out to send from the hot and cold water water side after back (the 4th magnetic valve 18 cuts out at this moment) is sucked pressurization through the 7th magnetic valve 21 backs (this moment, the 6th magnetic valve 20 cut out) by second water pump 25 from the 3rd heat exchanger 14.The solar heat resource loop is not worked, and wherein the 3rd magnetic valve 17, the 5th magnetic valve 19 are closed, and first water pump 24 is not worked.
When intensity of solar radiation hour (radiation loss of heat collector when the solar radiation available heat is less than or equal to that the hot water temperature is 45 ℃ in the solar thermal collector): cold-producing medium is sucked the compression back by compressor 1 and discharges in the refrigerant circulation loop, enter the 3rd heat exchanger 14 through behind the cross valve 2, cold-producing medium is emitted the heat condensation therein, the hot water temperature is raise, cold-producing medium is successively through second check valve 8 then, reservoir 9, filter 10, electric expansion valve 11, be divided into two-way behind the 3rd check valve 12, one the tunnel enters first heat exchanger 3, cold-producing medium evaporates the heat that absorbs air therein, after the evaporation, flow out fully from first heat exchanger 3.Other one the tunnel enters second heat exchanger 4 through second magnetic valve 6, cold-producing medium evaporates therein, absorb the heat of hot water in the solar heat resource loop, fully after the evaporation, flow out from second heat exchanger 4, pass through cross valve 2 once more through first magnetic valve, 5 backs and after the refrigerant mixed of first heat exchanger, 3 outflows, enter gas-liquid separator 15 backs and sucked, compress once more and circulate by compressor 1.Hot water absorbs solar energy in the solar heat resource loop from solar thermal collector 16, after raising, temperature enters second heat exchanger 4 through the 5th magnetic valve 19 (this moment, the 6th magnetic valve 20 cut out), first water pump 24, hot water therein with the cold-producing medium heat exchange, emit heat, temperature reduces, enter solar thermal collector (this moment, the 4th magnetic valve 18 cut out) through the 3rd magnetic valve 17 after hot water comes out from second heat exchanger 4, hot water absorbs heat once more in solar thermal collector 16, so circulation.Hot water enters the 3rd heat exchanger 14 through the 9th magnetic valve 23 (this moment, the 8th magnetic valve 22 cut out) in the solar cold hot-water return after hot and cold water backwater end enters unit, hot water in the 3rd heat exchanger 14 with the cold-producing medium heat exchange, temperature raises, and is sucked the pressurization back through the 7th magnetic valve 21 (this moment, the 4th magnetic valve 18 cut out) back by second water pump 25 after hot water comes out from the 3rd heat exchanger 14 and sends from the hot and cold water water side.
When intensity of solar radiation is big (the solar radiation available heat greater than solar thermal collector in the radiation loss of the heat collector of hot water temperature when being 45 ℃, produce 5 ℃ of temperature rises therein but can not satisfy hot water): cold-producing medium is sucked the discharge of compression back by compressor 1 in the refrigerant circulation loop, enter the 3rd heat exchanger 14 through behind the cross valve 2, cold-producing medium is emitted the heat condensation therein, the hot water temperature is raise, cold-producing medium is successively through second check valve 8 then, reservoir 9, filter 10, electric expansion valve 11, enter in first heat exchanger 3 (this moment first magnetic valve 5 behind the 3rd check valve 12, second magnetic valve 6 cuts out), cold-producing medium evaporates the heat that absorbs air therein, fully after the evaporation, flow out from first heat exchanger 3, by cross valve 2, enter gas-liquid separator 15 backs and sucked once more by compressor 1, compression is circulation once more.Hot water enters the 3rd heat exchanger 14 (this moment, the 8th magnetic valve 22 cut out) through the 9th magnetic valve 23 in the solar cold hot-water return after hot and cold water backwater end enters unit, hot water in the 3rd heat exchanger 14 with the cold-producing medium heat exchange, temperature raises, after hot water comes out from the 3rd heat exchanger 14 through the 4th magnetic valve 18 enter solar thermal collector 16 (this moment the 3rd magnetic valve 17, the 7th magnetic valve 21 cuts out), absorb solar heat, through the 6th magnetic valve 20 (this moment, the 5th magnetic valve 19 cut out), sucked the pressurization back by second water pump 25 then and send after temperature raises from the hot and cold water water side.The solar heat resource loop is not worked, and wherein the 3rd magnetic valve 17, the 5th magnetic valve 19 are closed, and first water pump 24 is not worked.
When intensity of solar radiation is enough big (solar thermal collector can satisfy heat supply water separately and produce 5 ℃ of temperature rises therein): refrigerant circulation loop, the solar heat resource loop is not worked, in the solar cold hot-water return, hot water will be respectively through the 8th magnetic valve 22 after entering unit from hot and cold water backwater end, the 4th magnetic valve 18 enter solar thermal collector (this moment the 9th magnetic valve 23, the 7th magnetic valve 21, the 3rd magnetic valve 17 all cuts out), absorb solar heat, through the 6th magnetic valve 20 backs (this moment, the 5th magnetic valve 19 cut out), hot water was sucked the pressurization back by second water pump 25 and sends from the hot and cold water water side after temperature raise.
Summer refrigerating operaton: cold-producing medium is sucked the compression back by compressor 1 and discharges in the refrigerant circulation loop, through entering first heat exchanger 3 (this moment first magnetic valve 5 behind the cross valve 2, second magnetic valve 6 cuts out), cold-producing medium therein with the air heat exchange, emit the heat condensation, then successively through first check valve 7, reservoir 9, filter 10, electric expansion valve 11, enter in the 3rd heat exchanger 14 behind the 4th check valve 13, cold-producing medium therein with the chilled water heat exchange, evaporation absorbs heat, produce chilled water, once more by cross valve 2, enter gas-liquid separator 15 backs and sucked after cold-producing medium evaporates fully by compressor 1, compression is circulation once more.Chilled water enters the 3rd heat exchanger 13 (this moment, the 8th magnetic valve 22 cut out) through the 9th magnetic valve 23 in the solar cold hot-water return after hot and cold water backwater end enters unit, chilled water in the 3rd heat exchanger 14 with the cold-producing medium heat exchange, temperature reduces, and is sucked the pressurization back through the 7th magnetic valve 21 backs (the 4th magnetic valve 18, the 6th magnetic valve 20 are closed at this moment) by second water pump 25 again and sends from the hot and cold water water side.The solar heat resource loop is not worked, and wherein the 3rd magnetic valve 17, the 5th magnetic valve 19 are closed, and first water pump 24 is not worked.
Compressor is taked variable conpacitance compressor in this heat pump assembly, when the solar radiation available heat greater than solar thermal collector in the radiation loss of the heat collector of hot water temperature when being 45 ℃, but can not satisfy hot water and produce 5 ℃ of temperature rises therein the time, the varying capacity operation by compressor guarantees 45 ℃ of heating system heat supply leaving water temperatures.When intensity of solar radiation is big, the operation of compressor low capacity, on the contrary opposite.
Claims (5)
1. the solar auxiliary air source heat pump device that can realize multi-mode operation is characterized in that this device comprises refrigerant circulation loop, solar heat resource loop, solar cold hot-water return;
Refrigerant circulation loop comprises: compressor (1), cross valve (2), first heat exchanger (3), second heat exchanger (4), first magnetic valve (5), second magnetic valve (6), first check valve (7), second check valve (8), reservoir (9), filter (10), electric expansion valve (11), the 3rd check valve (12), the 4th check valve (13), the 3rd heat exchanger (14), gas-liquid separator (15) and relevant connection pipeline thereof; Compressor (1) output termination cross valve first input end (2a), after coming out, divides cross valve first output (2b) two-way, one the tunnel connects the first heat exchanger input (3a), first magnetic valve (5) of leading up in addition connects second heat exchanger, first output (4b), the second heat exchanger first input end (4a) merges the back by second magnetic valve (6) and first heat exchanger, first output (3b) and connects reservoir (9) input by first check valve (7), the 3rd heat exchanger first input end (14a) connects reservoir (9) input by second check valve (8), reservoir (9) output connects electric expansion valve (11) input by filter (10), electric expansion valve (11) output connects the 3rd heat exchanger first input end (14a) by the 4th check valve (13), electric expansion valve (11) output also connects first heat exchanger, first output (3b) by the 3rd check valve (12) simultaneously, the 3rd heat exchanger first output (14b) connects cross valve second input (2c), cross valve second output (2d) connects gas-liquid separator (15) input, gas-liquid separator (15) output termination compressor (1) input;
The solar heat resource loop comprises: solar thermal collector (16), second heat exchanger (4), the 3rd magnetic valve (17), the 5th magnetic valve (19), first water pump (24) and relevant connection pipeline thereof; Second heat exchanger, second output (4d) connects solar thermal collector (16) input by the 3rd magnetic valve (17), solar thermal collector (16) output connects first water pump (24) input by the 5th magnetic valve (19), first water pump (24) output termination second heat exchanger, second input (4c);
The solar cold hot-water return comprises: solar thermal collector (16), the 4th magnetic valve (18), the 6th magnetic valve (20), the 7th magnetic valve (21), the 8th magnetic valve (22), the 9th magnetic valve (23), the 3rd heat exchanger (14), second water pump (25) and relevant connection pipeline thereof; Hot and cold water backwater end is divided into two-way, the 9th magnetic valve (23) of leading up to connects the 3rd heat exchanger second input (14c), another road merges by the 8th magnetic valve (22) and the 3rd heat exchanger second output (14d), two-way is divided into two-way again after merging: the 4th magnetic valve (18) of leading up to connects solar thermal collector (16) input, solar thermal collector (16) output connects second water pump (25) input after by the 6th magnetic valve (20), the 7th magnetic valve (21) of leading up in addition also connects second water pump (25) input, second water pump (25) output termination hot and cold water water side; First temperature sensor (26) is housed in the hot and cold water water side, second temperature sensor (27) is housed at hot and cold water backwater end.
2. the solar auxiliary air source heat pump device of realizing multi-mode operation according to claim 1, second heat exchanger (4) that it is characterized in that heat pump apparatus of air source is realized tandem working with solar thermal collector (16), second heat exchanger (4) is preceding, solar thermal collector (16) after.
3. the solar auxiliary air source heat pump device of realizing multi-mode operation according to claim 1, it is characterized in that solar thermal collector (16), the 3rd magnetic valve (17), the 5th magnetic valve (19), first water pump (24), second heat exchanger (4) constitute the solar heat resource loop, make solar thermal collector can realize that the direct heating of heat supply water can be used as the low-temperature heat source of air source heat pump again.
4. the solar auxiliary air source heat pump device of realizing multi-mode operation according to claim 1 is characterized in that compressor (1) is a variable displacement compressor.
5. the solar auxiliary air source heat pump device of realizing multi-mode operation according to claim 1 is characterized in that solar thermal collector (16) takes the low power solar concentrating collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910033558 CN101581516B (en) | 2009-06-23 | 2009-06-23 | Solar auxiliary air source heat pump device capable of realizing multimode operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910033558 CN101581516B (en) | 2009-06-23 | 2009-06-23 | Solar auxiliary air source heat pump device capable of realizing multimode operation |
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| Publication Number | Publication Date |
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| CN101581516A CN101581516A (en) | 2009-11-18 |
| CN101581516B true CN101581516B (en) | 2010-09-15 |
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| CN 200910033558 Expired - Fee Related CN101581516B (en) | 2009-06-23 | 2009-06-23 | Solar auxiliary air source heat pump device capable of realizing multimode operation |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101818986B (en) * | 2010-04-23 | 2011-07-20 | 中国科学院广州能源研究所 | Heat-accumulating solar energy and heat pump combined drying device capable of realizing multi-mode operation |
| CN105333480B (en) * | 2015-11-30 | 2020-01-21 | 佛山欧思丹热能科技有限公司 | Multi-energy composite heating system |
| CN106247680B (en) * | 2016-07-30 | 2018-11-02 | 北京工业大学 | Low-temperature air energy and microchannel direct-evaporation-type solar energy coupling heat pump unit and method |
| CN106895474B (en) * | 2017-03-24 | 2019-04-12 | 东南大学 | A kind of multi-mode solar heat pump cold and hot water supply system |
| 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 |
| CN110243007B (en) * | 2019-06-13 | 2021-04-27 | 科希曼电器有限公司 | Solar-assisted air source heat pump system |
| CN111156726B (en) * | 2020-02-11 | 2023-11-14 | 扬州大学 | Air source heat pump system based on soil cross-season heat accumulation defrosting and solar intermittent utilization and application method thereof |
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