CN208443071U - The gas-fired heat pump composite system of coupling evaporation cooled heat exchanger under a kind of worst cold case - Google Patents
The gas-fired heat pump composite system of coupling evaporation cooled heat exchanger under a kind of worst cold case Download PDFInfo
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- CN208443071U CN208443071U CN201820841729.5U CN201820841729U CN208443071U CN 208443071 U CN208443071 U CN 208443071U CN 201820841729 U CN201820841729 U CN 201820841729U CN 208443071 U CN208443071 U CN 208443071U
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- 238000001704 evaporation Methods 0.000 title claims abstract description 20
- 239000002131 composite material Substances 0.000 title claims abstract description 15
- 230000008020 evaporation Effects 0.000 title claims abstract description 12
- 230000008878 coupling Effects 0.000 title claims abstract description 11
- 238000010168 coupling process Methods 0.000 title claims abstract description 11
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 11
- 239000002918 waste heat Substances 0.000 claims abstract description 47
- 239000007789 gas Substances 0.000 claims abstract description 34
- 238000011084 recovery Methods 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 86
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 18
- 239000007921 spray Substances 0.000 claims description 17
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- 239000000498 cooling water Substances 0.000 claims description 10
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 7
- 239000003345 natural gas Substances 0.000 claims description 5
- 239000003507 refrigerant Substances 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims 3
- 238000010438 heat treatment Methods 0.000 abstract description 18
- 239000002912 waste gas Substances 0.000 abstract description 5
- 230000002401 inhibitory effect Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 10
- LVGUZGTVOIAKKC-UHFFFAOYSA-N 1,1,1,2-tetrafluoroethane Chemical compound FCC(F)(F)F LVGUZGTVOIAKKC-UHFFFAOYSA-N 0.000 description 7
- 238000005265 energy consumption Methods 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- XGFJCRNRWOXGQM-UHFFFAOYSA-N hot-2 Chemical compound CCSC1=CC(OC)=C(CCNO)C=C1OC XGFJCRNRWOXGQM-UHFFFAOYSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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Abstract
The purpose of the utility model is to provide a kind of gas-fired heat pump composite systems of coupling evaporation cooled heat exchanger under worst cold case.The gas-fired heat pump set composite that a kind of coupling of the utility model presses down white type transpiration-cooled heat exchanger includes heat pump circulating system, waste heat recovery of circulatory system, presses down the white circulatory system.The utility model especially solves under low-temperature heating operating condition in winter, when external environment temperature is lower than -20 DEG C, the set composite of the design of the utility model defrosts to the heat exchanger tube of transpiration-cooled heat exchanger using the waste heat and its waste gas residual heat of gas engine, to achieve the purpose that the speed of growth for inhibiting transpiration-cooled heat exchanger frost layer and improve coefficient of performance.The utility model achievement is particularly suitable for using under northern extreme cold weather conditions, has very strong real Practical significance.
Description
Technical field
The invention belongs to transpiration-cooled heat exchangers and gas-burning machine heat pump technical field, and in particular to a kind of vaporation-type heat exchange
Device and gas-fired heat pump couple composite energy supply system.
Background technique
Building energy consumption accounts for about the 30% of Chinese society total energy consumption, and refrigeration air-conditioner energy consumption accounts for the 70% of building energy consumption.It is conventional
Refrigeration air-conditioner mainly to be driven by electricity, more than China peak of power consumption there is the phenomenon that power cuts to limit consumption.Simultaneously with this, China's electric power
Mainly by coal power generation, causes low efficiency and have pollution to environment.Natural gas is as a kind of clean energy resource, increasingly by weight
Depending on.Therefore the gas engine heat pump system using natural gas as the energy is increasingly subject to widely pay close attention to.
Gas engine heat pump system can recycle gas engine waste heat, and primary energy utilization ratio is higher than net electric heating pump,
Energy-saving effect is fairly obvious.Net for air-source heat pump units, especially for evaporating heat exchanger under heating condition, heat pump unit
Energy coefficient is decayed with the reduction of environment temperature, is difficult to absorb heat from environment when environment temperature is reduced to -20 DEG C.
Therefore, it for gas-fired heat pump energy supplying system, especially for the gas engine heat pump system of evaporating heat exchanger, visits
A kind of new technology and method under worst cold case with superior performance coefficient of rope, this has important show in heat pump heating field
Sincere justice.
Summary of the invention
To solve problems of the prior art, i.e. the heating condition of evaporating heat exchanger causes to change under cryogenic
Heat pipe frosting influences heating effect, and how further to be asked using the waste heat of gas-fired heat pump unit and the technology of waste gas residual heat
Topic.
The object of the present invention is to provide a kind of gas-fired heat pump set composites of transpiration-cooled heat exchanger under worst cold case, are
User's cooling supply, heat supply and the necessary domestic hot-water of offer, especially solve to work as external environment under low-temperature heating operating condition in winter
When temperature is lower than -20 DEG C, the set composite of design of the invention is using the waste heat and its waste gas residual heat of gas engine to evaporation
The heat exchanger tube of cooled heat exchanger defrosts, to reach the speed of growth for inhibiting transpiration-cooled heat exchanger frost layer and improve system
The purpose of the coefficient of performance.Present invention is particularly suitable for using under northern extreme cold weather conditions, have very strong reality practical
Meaning.
The technical scheme of the present invention is realized as follows: a kind of coupling presses down the gas-fired heat pump of white type transpiration-cooled heat exchanger
Set composite includes heat pump circulating system, waste heat recovery of circulatory system, presses down the white circulatory system；
The set composite includes gas engine 5, compressor 1, plate heat exchanger 2, electric expansion valve 3, evaporation cooling
Formula heat exchanger 4, four-way reversing valve 16, the first check valve 12, second one-way valve 13, third check valve 14 and the 4th check valve 15,
First afterheat heat exchanger 6, the second afterheat heat exchanger 7, waste-heated water-tank 8, waste heat circulation water pump 9, the first solenoid valve 10, the second electromagnetism
Valve 11；
Also, transpiration-cooled heat exchanger 4 includes shell 4-0, water pump 4-1, shut-off valve 4-2, defrosing pipe 4-3, heat exchanger tube
4-4, spray tube 4-5, water fender 4-6, axial flow blower 4-7, drain valve 4-8, ball-cock assembly 4-9, air-inlet grille 4-10, water tank 4-
11, wherein the top of the transpiration-cooled heat exchanger 4 is equipped with axial flow blower 4-7, is equipped with gear below the axial flow blower 4-7
It is equipped with spray tube 4-5 below water plate 4-6, the water fender 4-6, heat exchanger tube 4-4 is equipped with below the spray tube 4-5, it is described to change
Defrosing pipe 4-3 is equipped with below heat pipe 4-4, the shell 4-0 is formed with air-inlet grille 4-10, the air inlet grille close to the two sides of bottom
The lower section of grid 4-10 is equipped with water tank 4-11, and has cooling water in the water tank 4-11, and the bottom the water tank 4-11 is equipped with drain valve
Cooling water in 4-8, the water tank 4-11 is equipped with ball-cock assembly 4-9；And the spray tube 4-5 connection shut-off valve 4-2, it is described
Shut-off valve 4-2 connection water pump 4-1, the water pump 4-1 are connected to the cooling water in water tank 4-11；
Gas engine 5 drives compressor 1, and the compressor 1 connects four-way reversing valve 16, the four-way reversing valve 16 1
Road connecting plate type heat exchanger 2, another way connect heat exchanger tube 4-4, and another road connects the compressor 1, and the plate heat exchanger 2 divides
The first check valve 12, the 4th check valve 15 are not connected, and it is swollen that first check valve 12 and second one-way valve 13 are separately connected electronics
Swollen valve 3, the electric expansion valve 3 are separately connected third check valve 14 and the 4th check valve 15, the second one-way valve 13 and institute
The heat exchanger tube 4-4 connected after 14 parallel connection of third check valve in transpiration-cooled heat exchanger 4 is stated, described in the heat exchanger tube 4-4 connection
Four-way reversing valve 16, the four-way reversing valve 16 connect the compressor 1 and are formed into a loop, and above-mentioned circulation loop is for heat pump cycle
System；
First afterheat heat exchanger 6 collects the cylinder sleeve waste heat of the gas engine 5, and the second afterheat heat exchanger 7 is collected described
The waste heat of exhaust gas is discharged in gas engine 5, and first afterheat heat exchanger 6 connects second afterheat heat exchanger 7, and described second
Afterheat heat exchanger 7 connects waste-heated water-tank 8, and 8 one tunnel of waste-heated water-tank connects waste heat circulation water pump 9, the waste heat circulation water pump 9
First afterheat heat exchanger 6 is connected by second solenoid valve 11 to be formed into a loop, and is for waste heat recovery of circulatory system；
The waste-heated water-tank 8 connects the waste heat circulation water pump 9, and the waste heat circulation water pump 9 passes through the first solenoid valve 10
The defrosing pipe 4-3 in the transpiration-cooled heat exchanger 4 is connected, the defrosing pipe 4-3 connection waste-heated water-tank 8 is formed back
Road is to press down the white circulatory system；
Wherein, the driving working media A of the gas engine 5 is natural gas or methane, the work in heat pump circulating system
Making medium B is refrigerant, waste heat recovery of circulatory system and the working media C pressed down in the white circulatory system be glycol water or
Water.
Gas engine 5 realizes refrigeration or heating by driving compressor 1 to run heat pump system；Working media C absorbs
The 5 cylinder sleeve waste heat of gas engine and the gas engine 5 are discharged (useless) gas waste heat and are stored in waste-heated water-tank 8, are used for
Domestic hot-water, auxiliary heating defrost for the transpiration-cooled heat exchanger 4.
It is preferred that working media B is R134a.
It is preferred that the heat exchanger tube 4-4 is Wind-cooling type fin tube type heat exchanger tube.
It is preferred that the outer exit of the waste-heated water-tank 8 provides necessity so that the hot water of the waste-heated water-tank 8 exports for user
Domestic hot-water.
The principle of the invention lies in the cylinder sleeve of the gas engine 5 and waste gas residual heat is recycled, it is particularly suitable for
The cooling medium of high temperature is recycled into close in the transpiration-cooled heat exchanger 4 by low temperature environment by waste heat circulation water pump 9
The defrosing pipe 4-3 of bottom, the axial flow blower 4-7 at defrosing pipe 4-3 temperature 4 top of transpiration-cooled heat exchanger while raising
It opens, air is increased through bottom defrosing pipe 4-3 temperature after heating to be risen, then is carried out with the heat exchanger tube 4-4 of top circularly cooling agent
Heat exchange achievees the purpose that inhibit heat exchanger tube 4-4 Frosting rate and exchange heat pipe 4-4 to carry out defrosting and improve evaporating pressure, this
Low temperature environment coefficient of performance not high technical problem when the device of invention solves heating.
The features of the present invention and beneficial effect are:
(1) pressing down the white circulatory system can inhibit to change in the case that in heating, low temperature environment coefficient of performance is not high significantly
The speed of growth of heat pipe 4-4 frost layer improves heat pump system evaporating pressure, further increases coefficient of performance.
(2) present invention primary energy utilization ratio and in terms of have apparent advantage, while reducing system
Operating cost has achieved the effect that economical and energy saving.
Detailed description of the invention
Fig. 1 is the gas-fired heat pump set composite connection figure that a kind of coupling of embodiment 1 presses down white type transpiration-cooled heat exchanger.
Wherein, compressor 1, plate heat exchanger 2, electric expansion valve 3, transpiration-cooled heat exchanger 4, gas engine 5,
One afterheat heat exchanger 6, the second afterheat heat exchanger 7, waste-heated water-tank 8, waste heat circulation water pump 9, the first solenoid valve 10, second solenoid valve
11, the first check valve 12, second one-way valve 13, third check valve 14, the 4th check valve 15, four-way reversing valve 16；
Wherein, transpiration-cooled heat exchanger 4 includes shell 4-0, water pump 4-1, shut-off valve 4-2, defrosing pipe 4-3, heat exchanger tube
4-4, spray tube 4-5, water fender 4-6, axial flow blower 4-7, drain valve 4-8, ball-cock assembly 4-9, air-inlet grille 4-10, water tank 4-
11；
A, B, C are working media
Arrow in figure → be waste heat circulation direction, arrow → for heating loop direction, arrow → it is refrigeration cycle direction.
Specific embodiment
It is further described with reference to the accompanying drawing and by specific embodiment to structural principle of the invention.But this reality
Apply example be it is narrative, and not restrictive, it is not limited to invention which is intended to be protected.
Embodiment 1
As shown in Figure 1, the gas-fired heat pump set composite that a kind of coupling presses down white type transpiration-cooled heat exchanger includes that heat pump follows
Loop system, waste heat recovery of circulatory system press down the white circulatory system；
The set composite includes gas engine 5, compressor 1, plate heat exchanger 2, electric expansion valve 3, evaporation cooling
Formula heat exchanger 4, four-way reversing valve 16, the first check valve 12, second one-way valve 13, third check valve 14 and the 4th check valve 15,
First afterheat heat exchanger 6, the second afterheat heat exchanger 7, waste-heated water-tank 8, waste heat circulation water pump 9, the first solenoid valve 10, the second electromagnetism
Valve 11；
Also, transpiration-cooled heat exchanger 4 includes shell 4-0, water pump 4-1, shut-off valve 4-2, defrosing pipe 4-3, heat exchanger tube
4-4, spray tube 4-5, water fender 4-6, axial flow blower 4-7, drain valve 4-8, ball-cock assembly 4-9, air-inlet grille 4-10, water tank 4-
11, wherein the top of the transpiration-cooled heat exchanger 4 is equipped with axial flow blower 4-7, is equipped with gear below the axial flow blower 4-7
It is equipped with spray tube 4-5 below water plate 4-6, the water fender 4-6, heat exchanger tube 4-4 is equipped with below the spray tube 4-5, it is described to change
Defrosing pipe 4-3 is equipped with below heat pipe 4-4, the shell 4-0 is formed with air-inlet grille 4-10, the air inlet grille close to the two sides of bottom
The lower section of grid 4-10 is equipped with water tank 4-11, and has cooling water in the water tank 4-11, and the bottom the water tank 4-11 is equipped with drain valve
Cooling water in 4-8, the water tank 4-11 is equipped with ball-cock assembly 4-9；And the spray tube 4-5 connection shut-off valve 4-2, it is described
Shut-off valve 4-2 connection water pump 4-1, the water pump 4-1 are connected to the cooling water in water tank 4-11；
Gas engine 5 drives compressor 1, and the compressor 1 connects four-way reversing valve 16, the four-way reversing valve 16 1
Road connecting plate type heat exchanger 2, another way connect heat exchanger tube 4-4, and another road connects the compressor 1, and the plate heat exchanger 2 divides
The first check valve 12, the 4th check valve 15 are not connected, and it is swollen that first check valve 12 and second one-way valve 13 are separately connected electronics
Swollen valve 3, the electric expansion valve 3 are separately connected third check valve 14 and the 4th check valve 15, the second one-way valve 13 and institute
The heat exchanger tube 4-4 connected after 14 parallel connection of third check valve in transpiration-cooled heat exchanger 4 is stated, described in the heat exchanger tube 4-4 connection
Four-way reversing valve 16, the four-way reversing valve 16 connect the compressor 1 and are formed into a loop, and above-mentioned circulation loop is for heat pump cycle
System；
First afterheat heat exchanger 6 collects the cylinder sleeve waste heat of the gas engine 5, and the second afterheat heat exchanger 7 is collected described
The waste heat of exhaust gas is discharged in gas engine 5, and first afterheat heat exchanger 6 connects second afterheat heat exchanger 7, and described second
Afterheat heat exchanger 7 connects waste-heated water-tank 8, and 8 one tunnel of waste-heated water-tank connects waste heat circulation water pump 9, the waste heat circulation water pump 9
First afterheat heat exchanger 6 is connected by second solenoid valve 11 to be formed into a loop, and is for waste heat recovery of circulatory system；
The waste-heated water-tank 8 connects the waste heat circulation water pump 9, and the waste heat circulation water pump 9 passes through the first solenoid valve 10
The defrosing pipe 4-3 in the transpiration-cooled heat exchanger 4 is connected, the defrosing pipe 4-3 connection waste-heated water-tank 8 is formed back
Road is to press down the white circulatory system；
Wherein, the driving working media A of the gas engine 5 is natural gas or methane, the work in heat pump circulating system
Making medium B is refrigerant, and waste heat recovery of circulatory system and the working media C pressed down in the white circulatory system are glycol water.
In this example, working media B is R134a.
In this example, the heat exchanger tube 4-4 is Wind-cooling type fin tube type heat exchanger tube.
In this example, the waste-heated water-tank 8 can also outer exit mentioned so that the hot water of the waste-heated water-tank 8 exports for user
For necessary domestic hot-water.
It should be noted that four-way reversing valve 16 described in this example is four-way known to person of ordinary skill in the field
Reversal valve, including pilot valve and main valve, 4 accesses, two of them connect the evaporator and condenser of refrigeration system, other two connects system
The air entry and exhaust outlet of cold compressor.By four-way reversing valve by the exhaust of compressor and air-breathing and above-mentioned two heat exchanger phase
Even, to realize the switching of refrigeration and heating mode.
In this example, the four-way reversing valve 16 runs cooling condition in the power-off state, operation heating work under energized state
Condition.
Heating in use, refrigerant R134a in heat pump circulating system in the compressor 1, four-way reversing valve 16, board-like
Heat exchanger 2, the first check valve 12, electric expansion valve 3, third check valve 14, the heat exchanger tube 4-4 of transpiration-cooled heat exchanger 4, four
It is recycled in the circuit that logical reversal valve 16 is formed, i.e., refrigerant R134a recycles in the heat pump circulating system；Meanwhile waste heat returns
Glycol water in the circulatory system is received in first afterheat heat exchanger 6, the second afterheat heat exchanger 7, waste-heated water-tank 8, remaining
It is recycled in the circuit formed between thermal cycle water pump 9, second solenoid valve 11, i.e., glycol water is in waste heat recovery of circulatory system
Middle circulation, the waste heat that first afterheat heat exchanger 6, the second afterheat heat exchanger 7 recycle the gas engine 5 are stored in described
In waste-heated water-tank 8.
Under the heat pump circulating system heating condition of the device, the plate heat exchanger 2 in heat pump circulating system is used as condenser,
The heat exchanger tube 4-4 of transpiration-cooled heat exchanger 4 is as evaporator, and refrigerant R134a is in 4 interior suction hot vapour of transpiration-cooled heat exchanger
Change, after four-way reversing valve 16 enters the raising pressure of compressor 1, then is discharged into plate heat exchanger 2 through four-way reversing valve 16 and is put
Heat condensation, hot water preparing realize heating.Refrigerant R134a then after the first check valve 12,3 reducing pressure by regulating flow of electric expansion valve,
The heat exchanger tube 4-4 of transpiration-cooled heat exchanger 4 is recycled into through third check valve 14 again, completes heat pump system circulation, it is same with this
When, the water pump 4-1, shut-off valve 4-2 path blockade under this operating condition, spray tube 4-5 are closed, and axial flow blower 4-7 is opened；
Meanwhile second solenoid valve 11 is opened, glycol water passes sequentially through first afterheat heat exchanger 6, more than second
Heat exchanger 7 absorbs the waste heat of cylinder sleeve of engine and its exhaust gas, stores into waste-heated water-tank 8；At this point, when transpiration-cooled exchanges heat
The non-frosting of heat exchanger tube 4-4 in device 4 or under the conditions of not needing defrosting, the first solenoid valve 10 is closed, and is pressed down the white circulatory system and is closed.
Especially in winter under low-temperature heating operating condition, when external environment temperature is lower than -20 DEG C, design of the invention is answered
It attaches together to set and be defrosted using the waste heat and its waste gas residual heat of gas engine 5 to the heat exchanger tube 4-4 of transpiration-cooled heat exchanger 4, from
And achieve the purpose that the speed of growth for inhibiting 4 frost layer of transpiration-cooled heat exchanger and improve coefficient of performance, the present invention is especially
Suitable for being used under northern extreme cold weather conditions, when environment temperature is lower, evaporating pressure is lower or need to be cold to evaporating
But when formula heat exchanger 4 carries out defrosting, the water pump 4-1, shut-off valve 4-2 path blockade under this operating condition, spray tube 4-5 are closed, and are stopped
Only spray water；The first solenoid valve 10 is opened, the glycol water in the white circulatory system is pressed down under the driving of waste heat circulation water pump 9
It is recycled in the circuit formed between the waste-heated water-tank 8, waste heat circulation water pump 9, the first solenoid valve 10, defrosing pipe 4-3, makes to press down
The white circulatory system brings into operation, and glycol water enters defrosing pipe 4-3 by waste heat circulation water pump 9, the first solenoid valve 10, together
When axial flow blower 4-7 bring into operation outside air made to enter in shell 4-0 from air-inlet grille 4-10 and arrange by axial flow blower 4-7
Out, since the defrosing pipe 4-3 is located at the lower part of heat exchanger tube 4-4 during this, so that the heat that the defrosing pipe 4-3 is distributed
Amount, which rises, carries out defrosting to the heat exchanger tube 4-4 of transpiration-cooled heat exchanger 4, to improve system evaporating pressure, flows subsequently through described
The glycol water of defrosing pipe 4-3 is recycled to waste-heated water-tank 8.
When refrigeration, presses down the white circulatory system and close, close the first solenoid valve 10；It is board-like in heat pump circulating system when refrigeration
Heat exchanger 2 is used as evaporator, and as condenser, refrigerant R134a changes the heat exchanger tube 4-4 of transpiration-cooled heat exchanger 4 board-like
Hot 2 interior suction hot vapour of device produces chilled water, realizes refrigeration.Refrigerant R134a enters compressor 1 through four-way reversing valve 16 and improves
After pressure, then the heat exchanger tube 4-4 for being discharged into transpiration-cooled heat exchanger 4 through four-way reversing valve 16 carries out exothermic condensation, condensed
Refrigerant B is recycled into plate-type heat-exchange after second one-way valve 13,3 reducing pressure by regulating flow of electric expansion valve, then through the 4th check valve 15
Device 2 completes the refrigeration cycle of heat pump system；
Meanwhile cooling water in water tank 4-11 is recycled to spray tube 4-5 through shut-off valve 4-2 and sprayed downwards by the water pump 4-1,
Refrigerant R134a in exchange heat pipe 4-4 is condensed, and axial flow blower 4-7 is opened, and air enters evaporation through air-inlet grille 4-10
Cooled heat exchanger 4 is discharged by axial flow blower 4-7.
The preferred embodiment of the present invention has been described above in detail, but be not restricted to that specific thin in above embodiment
Section can carry out a variety of equivalents to technical solution of the present invention within the scope of the technical concept of the present invention, these equivalent changes
It changes and all belongs to the scope of protection of the present invention.
Claims (4)
1. the gas-fired heat pump composite system of coupling evaporation cooled heat exchanger under a kind of worst cold case, it is characterised in that including heat pump
The circulatory system, waste heat recovery of circulatory system press down the white circulatory system；
The composite system includes gas engine (5), compressor (1), plate heat exchanger (2), electric expansion valve (3), evaporation
Cooled heat exchanger (4), four-way reversing valve (16), the first check valve (12), second one-way valve (13), third check valve (14) and
4th check valve (15), the first afterheat heat exchanger (6), the second afterheat heat exchanger (7), waste-heated water-tank (8), waste heat circulation water pump
(9), the first solenoid valve (10), second solenoid valve (11)；
Also, transpiration-cooled heat exchanger (4) include shell (4-0), water pump (4-1), shut-off valve (4-2), defrosing pipe (4-3),
Heat exchanger tube (4-4), spray tube (4-5), water fender (4-6), axial flow blower (4-7), drain valve (4-8), ball-cock assembly (4-9), into
Gas grid (4-10), water tank (4-11), wherein the top of the transpiration-cooled heat exchanger (4) is equipped with axial flow blower (4-7),
It is equipped with water fender (4-6) below the axial flow blower (4-7), is equipped with spray tube (4-5) below the water fender (4-6), it is described
It is equipped with heat exchanger tube (4-4) below spray tube (4-5), is equipped with defrosing pipe (4-3) below the heat exchanger tube (4-4), the shell (4-
0) two sides close to bottom are formed with air-inlet grille (4-10), and the lower section of the air-inlet grille (4-10) is equipped with water tank (4-11), and
There is cooling water in the water tank (4-11), the water tank bottom (4-11) is equipped with drain valve (4-8), in the water tank (4-11)
Cooling water is equipped with ball-cock assembly (4-9)；And the spray tube (4-5) connects shut-off valve (4-2), and the shut-off valve (4-2) is even
Water pump (4-1), the water pump (4-1) are connected to the cooling water in water tank (4-11)；
Gas engine (5) drives compressor (1), and the compressor (1) connects four-way reversing valve (16), the four-way reversing valve
(16) connecting plate type heat exchanger (2), another way connect heat exchanger tube (4-4) all the way, and another road connects the compressor (1), described
Plate heat exchanger (2) is separately connected the first check valve (12), the 4th check valve (15), first check valve (12) and the second list
It is separately connected electric expansion valve (3) to valve (13), the electric expansion valve (3) is separately connected third check valve (14) and the 4th list
To valve (15), transpiration-cooled heat exchanger (4) are connected after the second one-way valve (13) and the third check valve (14) parallel connection
Interior heat exchanger tube (4-4), the heat exchanger tube (4-4) connect the four-way reversing valve (16), four-way reversing valve (16) connection
Compressor (1) forming circuit, is for heat pump circulating system；
First afterheat heat exchanger (6) collects the cylinder sleeve waste heat of the gas engine (5), and the second afterheat heat exchanger (7) collects institute
The waste heat of gas engine (5) discharge exhaust gas is stated, first afterheat heat exchanger (6) connects second afterheat heat exchanger (7),
Second afterheat heat exchanger (7) connects waste-heated water-tank (8), and the waste-heated water-tank (8) connects waste heat circulation water pump (9) all the way,
The waste heat circulation water pump (9) connects the first afterheat heat exchanger (6) forming circuit by second solenoid valve (11), and it is remaining for being
Heat-recovery circulating system；
The waste-heated water-tank (8) connects the waste heat circulation water pump (9), and the waste heat circulation water pump (9) passes through the first solenoid valve
(10) defrosing pipe (4-3) in the transpiration-cooled heat exchanger (4) is connected, the defrosing pipe (4-3) connects the remaining hot water
Case (8) forming circuit is to press down the white circulatory system；
Wherein, the driving working media A of the gas engine (5) is natural gas or methane, the work in heat pump circulating system
Medium B is refrigerant, and waste heat recovery of circulatory system and the working media C pressed down in the white circulatory system are glycol water or water.
2. the compound system of gas-fired heat pump of coupling evaporation cooled heat exchanger under a kind of worst cold case according to claim 1
System, it is characterised in that working media B is R134a.
3. the compound system of gas-fired heat pump of coupling evaporation cooled heat exchanger under a kind of worst cold case according to claim 1
System, it is characterised in that the heat exchanger tube (4-4) is Wind-cooling type fin tube type heat exchanger tube.
4. the compound system of gas-fired heat pump of coupling evaporation cooled heat exchanger under a kind of worst cold case according to claim 1
System, it is characterised in that the outer exit of the waste-heated water-tank (8) exports the hot water of the waste-heated water-tank (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820841729.5U CN208443071U (en) | 2018-05-26 | 2018-05-26 | The gas-fired heat pump composite system of coupling evaporation cooled heat exchanger under a kind of worst cold case |
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| CN201820841729.5U CN208443071U (en) | 2018-05-26 | 2018-05-26 | The gas-fired heat pump composite system of coupling evaporation cooled heat exchanger under a kind of worst cold case |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592453A (en) * | 2018-05-26 | 2018-09-28 | 烟台大学 | The gas-fired heat pump hybrid system of coupling evaporation cooled heat exchanger under a kind of worst cold case |
| DE102021126837A1 (en) | 2021-10-15 | 2023-04-20 | Audi Aktiengesellschaft | Operating method for a refrigeration system in heat pump operation at low ambient temperatures and motor vehicle with a refrigeration system operated in this way |
-
2018
- 2018-05-26 CN CN201820841729.5U patent/CN208443071U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108592453A (en) * | 2018-05-26 | 2018-09-28 | 烟台大学 | The gas-fired heat pump hybrid system of coupling evaporation cooled heat exchanger under a kind of worst cold case |
| CN108592453B (en) * | 2018-05-26 | 2024-01-09 | 烟台大学 | Gas heat pump composite system of coupling evaporative cooling type heat exchanger under low-temperature working condition |
| DE102021126837A1 (en) | 2021-10-15 | 2023-04-20 | Audi Aktiengesellschaft | Operating method for a refrigeration system in heat pump operation at low ambient temperatures and motor vehicle with a refrigeration system operated in this way |
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