CN203810792U - Novel ultralow environment temperature air source heat pump - Google Patents
Novel ultralow environment temperature air source heat pump Download PDFInfo
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- CN203810792U CN203810792U CN201420132963.2U CN201420132963U CN203810792U CN 203810792 U CN203810792 U CN 203810792U CN 201420132963 U CN201420132963 U CN 201420132963U CN 203810792 U CN203810792 U CN 203810792U
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- 230000006835 compression Effects 0.000 claims abstract description 80
- 238000007906 compression Methods 0.000 claims abstract description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000010438 heat treatment Methods 0.000 claims abstract description 38
- 238000000926 separation method Methods 0.000 claims abstract description 22
- 239000007788 liquid Substances 0.000 claims abstract description 17
- 239000003507 refrigerant Substances 0.000 claims description 29
- 238000001704 evaporation Methods 0.000 claims description 16
- 238000005057 refrigeration Methods 0.000 claims description 16
- 238000009833 condensation Methods 0.000 claims description 8
- 230000008020 evaporation Effects 0.000 claims description 8
- 230000005494 condensation Effects 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 6
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 239000011737 fluorine Substances 0.000 claims description 3
- 239000002918 waste heat Substances 0.000 abstract description 8
- 238000010257 thawing Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 5
- 239000012530 fluid Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 239000003570 air Substances 0.000 description 33
- 239000003921 oil Substances 0.000 description 19
- 239000007789 gas Substances 0.000 description 14
- AFYPFACVUDMOHA-UHFFFAOYSA-N chlorotrifluoromethane Chemical compound FC(F)(F)Cl AFYPFACVUDMOHA-UHFFFAOYSA-N 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000012080 ambient air Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- -1 controller Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
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- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model discloses a novel ultralow environment temperature air source heat pump, and aims at providing a novel ultralow environment temperature air source heat pump which is high in heating efficiency at ultralow temperatures. The novel ultralow environment temperature air source heat pump comprises a compressor with a high compression ratio, an oil separation device, a four-way valve, a double-pipe heat exchanger, a heating check valve, a liquid storage barrel, a heating expansion valve, a fan heat exchanger, am air separation device, a defrosting check valve, a defrosting expansion valve and a low temperature refrigerating fluid, wherein the heating check valve and the defrosting expansion valve are connected in parallel, the heating expansion valve and the defrosting check valve are connected in parallel, the low temperature refrigerating fluid is mounted in the compressor with the high compression ratio, and one end of the compressor with the high compression ratio is connected with the water inlet end of the double-pipe heat exchanger through a heat recovery solenoid valve of the compressor. The novel ultralow environment temperature air source heat pump has the advantages of being capable of working at ultralow environment temperatures, absorbing waste heat of the compressor, reducing discharge temperature of the compressor and improving heating capacity and efficiency, and further improving heating efficiency by using the fin heat exchanger defrosting method.
Description
Technical field
The utility model relates to air-source water heater correlative technology field, refers in particular to a kind of Novel super-low ring temperature air source heat pump.
Background technology
At present, country has heated following two standards for air source heat pump:
(1) the air source heat pump heating operation standard condition of standard GB/T/T18430.12007 " cold water (heat pump) unit of steam compression cycle cold water (heat pump) unit part 1 industry or business use and similar applications ", GB/T18430.22007 " cold water (heat pump) unit of steam compression cycle cold water (heat pump) unit part 2 family use and similar applications " regulation is 7 DEG C of environment temperatures, produce the hot water of 45 DEG C, minimum environment temperature to 7 DEG C can be moved;
(2) standard condition of the low ring temperature air source heat pump heating operation of standard GB/T/T25127.12010 " low ambient temperature air source heat pump (cold water) unit part 1: heat pump (cold water) unit of industry or business use and similar applications ", GB/T25127.22010 " low ambient temperature air source heat pump (cold water) unit part 2: heat pump (cold water) unit of family use and similar applications " regulation is 12 DEG C of environment temperatures, produce 41 DEG C of hot water, when minimum environment temperature to 20 DEG C, can move.
But, northwest and high altitude localities northeastward,, the environment temperature in winter is often lower than 20 DEG C, extreme ambient temperature reaches 40 DEG C, so no matter be that normal air source heat pump or low ambient temperature air source heat pump all cannot use in locality, and local heating generally in the following way: (1) fire coal, combustion gas, electric boiler heating; (2) water Heating by Ground Source Heat Pump; (3) carbon dioxide Air-Cooled Heat Pump Unit.These heating systems there will be following deficiency: (1) fire coal, gas fired-boiler serious environment pollution, consumption non-renewable energy resources, inefficiency, electric boiler inefficiency; (2) water earth source heat pump need to carry out geological prospecting, and water resource heat pump need to consume underground water, produce and recharge problem, so how do not allow exploiting groundwater, earth source heat pump cost of investment is larger, and Qinghai-Tibet frozen soil layer does not allow to make water earth source heat pump; (3) carbon dioxide coolant pressure is high, apply immature, accessory is immature, the manufacture process requirement of unit and parts is very high, security risk is higher, stable equipment operation is poor, high expensive.
Chinese patent Granted publication number: CN101004302A, July 25 2007 Granted publication day, disclose Frostless air-source heat pump, it is at least connected to form by pipeline by indoor air-source/water source heat exchanger, refrigerating/heating switching device shifter, four-way change-over valve, compressor, outdoor frostless finned heat exchanger list group or the two groups of frostless finned type heat exchanger, throttle mechanism and check valve/magnetic valve etc.Heating circulation time, cross cold finned heat exchanger and evaporate finned heat exchanger and be connected in series, cross the refrigerant liquid that flows through HTHP in cold fin type heat exchange organ pipe, the air-source flowing through outside cold fin type heat exchange organ pipe will be heated, this heated air-source flows to evaporation finned heat exchanger, cold-producing medium evaporating temperature in evaporation fin type heat exchange organ pipe will be raised, thereby realize the frostless operation of air source heat pump, overcome whole defects of frosting air source heat pump.In the time of kind of refrigeration cycle, cross cold finned heat exchanger and be connected in parallel and jointly use as condenser with evaporation finned heat exchanger.The weak point of this invention is, northeastward, northwest and high altitude localities, environment temperature is in the winter time lower than in the situation of 20 DEG C, especially in the situation that extreme ambient temperature reaches 40 DEG C, this Frostless air-source heat pump, heating efficiency is low in such cases, sometimes even cannot use.
Utility model content
The utility model is to have above-mentioned deficiency in order to overcome in prior art, and a kind of Novel super-low ring temperature air source heat pump can lowly at ultralow temperature with higher heating efficiency is provided.
To achieve these goals, the utility model is by the following technical solutions:
A kind of Novel super-low ring temperature air source heat pump, comprises the compressor of high compression ratio, oil separation device, cross valve, double-tube heat exchanger, heat check valve, liquid storing barrel, heat expansion valve, finned heat exchanger, gas separation unit, defrost check valve, defrost expansion valve and low-temperature refrigerant, described cross valve comprises first interface, the second interface, the 3rd interface and the 4th interface, described heat check valve and the parallel connection of defrost expansion valve, described expansion valve and the parallel connection of defrost check valve, the compressor of described high compression ratio of heating, the first interface of oil separation device and cross valve is connected successively, the second interface of described cross valve, double-tube heat exchanger, heat check valve, liquid storing barrel, heat expansion valve, the 3rd interface of finned heat exchanger and cross valve is connected successively, the 4th interface of described cross valve, the compressor of gas separation unit and high compression ratio is connected successively, described low-temperature refrigerant is arranged in the compressor of high compression ratio, described double-tube heat exchanger comprises water inlet end and water side, the water inlet end of magnetic valve joint sleeve heat exchanger is reclaimed in compressor one end of described high compression ratio by compressor heat, the water side of the compressor other end joint sleeve heat exchanger of described high compression ratio.
In the utility model, the first interface of cross valve is communicated with the second interface, and the 3rd interface is communicated with the 4th interface, by heating check valve and heating being used in conjunction with of expansion valve, disconnect defrost expansion valve and defrost check valve, to realize the heating mode of Novel super-low ring temperature air source heat pump simultaneously, the first interface of cross valve is communicated with the 3rd interface, the second interface is communicated with the 4th interface, by being used in conjunction with of defrost expansion valve and defrost check valve, disconnecting and heat check valve and heat expansion valve simultaneously, to realize the refrigeration mode of Novel super-low ring temperature air source heat pump, reclaim the low-temperature water heating of the water inlet end of magnetic valve introduction double-tube heat exchanger by compressor heat, absorb the waste heat of the compressor of high compression ratio, reduce the delivery temperature of the compressor of high compression ratio, after low-temperature water heating is heated simultaneously, get back to the water side of double-tube heat exchanger, with together with hot water in double-tube heat exchanger, supply with user and use, design effectively raises the heating capacity of Novel super-low ring temperature air source heat pump like this, the heating efficiency of Novel super-low ring temperature air source heat pump has also correspondingly improved, reach the object can lowly at ultralow temperature with higher heating efficiency.
As preferably, the compressor of described high pressure ratio is semi-hermetic piston-type refrigeration compressor, it is made up of the motor of resistance to fluorine, cylinder body, bent axle, connecting rod, heater, cylinder cap, refrigeration oil, controller, oil pump and oil pressure shut-off switch, the minimum evaporating temperature that the compressor of described high compression ratio allows is 45 DEG C, high evaporation temperature is 7 DEG C, and the highest condensation temperature is 62 DEG C.The minimum evaporating temperature of its permission, high evaporation temperature and the highest condensation temperature can meet winter ultralow temperature and heat with summer cooling.
As preferably, the pressure of described low-temperature refrigerant in the time of minimum evaporating temperature is lower than the pressure-bearing of the compressor low-pressure side of high compression ratio; The pressure of described low-temperature refrigerant in the time of the highest condensation temperature is lower than the on high-tension side pressure-bearing of compressor of high compression ratio.Meet the compressor operating scope of high compression ratio, the compressor of high compression ratio can be moved steadily in the long term.
As preferably, the delivery temperature of described low-temperature refrigerant after the compressor compresses of high compression ratio is no more than 100 degree.The delivery temperature that the compressor that makes low-temperature refrigerant be no more than high compression ratio allows, the lubricating oil, the bearing box seal that have reduced the compressor to high compression ratio produce damaging influence, have avoided the compressor damage of high compression ratio simultaneously.
As preferably, also comprise environment temperature sensor, defrost timer and PLC controller, the exit of described finned heat exchanger is provided with fin temperature sensor, the import department of the compressor of described high compression ratio is provided with inlet temperature sensor, and described environment temperature sensor, defrost timer, fin temperature sensor, inlet temperature sensor and cross valve are connected with PLC controller respectively.Can prevent the steam in finned heat exchanger ambient air or little water droplet is frozen into frost with regard to heat release or ice is attached to finned heat exchanger surface, thereby cause cutting off the heat exchange of low-temperature refrigerant and air.
As preferably, the exhaust ports of the compressor of described high compression ratio is provided with exhaust gas temperature sensor, and described exhaust gas temperature sensor reclaims magnetic valve with compressor heat and is connected with PLC controller respectively.Reclaim the object of the heat of compressor of magnetic valve realization recovery high compression ratio by compressor heat, also reduced delivery temperature and the oil temperature of the compressor of high compression ratio simultaneously, ensure that the compression function of high compression ratio is moved steadily in the long term.
The beneficial effects of the utility model are: by the compressor of high compression ratio and being used in conjunction with of cryogenic refrigerator, realizing it can be in ultralow environment temperature work; Can absorb the waste heat of the compressor of high compression ratio, reduce the delivery temperature of the compressor of high compression ratio, the heated rear user of supply of low-temperature water heating uses simultaneously, effectively raises heating capacity and the heating efficiency of Novel super-low ring temperature air source heat pump; Can effectively prevent the steam in finned heat exchanger ambient air or little water droplet is frozen into frost with regard to heat release or ice is attached to finned heat exchanger surface by finned heat exchanger defrosting method, thereby cause cutting off the heat exchange of low-temperature refrigerant and air, further improved the heating efficiency of Novel super-low ring temperature air source heat pump.
Brief description of the drawings
Fig. 1 is the schematic diagram that the utility model heats circulation;
Fig. 2 is the schematic diagram of the utility model kind of refrigeration cycle;
Fig. 3 is the schematic diagram that the heat of compressor of the utility model mesohigh contracting ratio reclaims.
In figure: 1. compressor, 2. oil separation device, 3. cross valve, 31. first interfaces, 32. second interfaces, 33. the 3rd interfaces, 34. the 4th interfaces, 4. double-tube heat exchanger, 41. water inlet ends, 42. water sides, 5. heat check valve, 6. liquid storing barrel, 7. heats expansion valve, 8. finned heat exchanger, 9. gas separation unit, 10. compressor heat reclaims magnetic valve, 11. defrost check valves, 12: defrost expansion valve, 13. low-temperature refrigerants.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As Fig. 1, Fig. 2, in embodiment described in Fig. 3, a kind of Novel super-low ring temperature air source heat pump, comprises the compressor 1 of high compression ratio, oil separation device 2, cross valve 3, double-tube heat exchanger 4, heat check valve 5, liquid storing barrel 6, heat expansion valve 7, finned heat exchanger 8, gas separation unit 9, defrost check valve 11, defrost expansion valve 12, low-temperature refrigerant 13, environment temperature sensor, defrost timer and PLC controller, cross valve 3 comprises first interface 31, the second interface 32, the 3rd interface 33 and the 4th interface 34, heat check valve 5 and 12 parallel connections of defrost expansion valve, heats expansion valve 7 and 11 parallel connections of defrost check valve, the compressor 1 of high compression ratio, the first interface 31 of oil separation device 2 and cross valve 3 is connected successively, the second interface 32 of cross valve 3, double-tube heat exchanger 4, heat check valve 5, liquid storing barrel 6, heat expansion valve 7, the 3rd interface 33 of finned heat exchanger 8 and cross valve 3 is connected successively, the 4th interface 34 of cross valve 3, the compressor 1 of gas separation unit 9 and high compression ratio is connected successively, low-temperature refrigerant 13 is arranged in the compressor 1 of high compression ratio, double-tube heat exchanger 4 comprises water inlet end 41 and water side 42, the water inlet end 41 of magnetic valve 10 joint sleeve heat exchangers 4 is reclaimed in compressor 1 one end of high compression ratio by compressor heat, the water side 42 of compressor 1 other end joint sleeve heat exchanger 4 of high compression ratio, the exit of finned heat exchanger 8 is provided with fin temperature sensor, the import department of the compressor 1 of high compression ratio is provided with inlet temperature sensor, the exhaust ports of the compressor 1 of high compression ratio is provided with exhaust gas temperature sensor, environment temperature sensor, defrost timer, fin temperature sensor, inlet temperature sensor, cross valve 3, exhaust gas temperature sensor, compressor heat reclaims magnetic valve 10 and is connected with PLC controller respectively.Wherein: the compressor 1 of high pressure ratio is semi-hermetic piston-type refrigeration compressor, it is made up of the motor of resistance to fluorine, cylinder body, bent axle, connecting rod, heater, cylinder cap, refrigeration oil, controller, oil pump and oil pressure shut-off switch, the minimum evaporating temperature that the compressor 1 of high compression ratio allows is 45 DEG C, high evaporation temperature is 7 DEG C, and the highest condensation temperature is 62 DEG C.The pressure of low-temperature refrigerant 13 in the time of minimum evaporating temperature is lower than the pressure-bearing of compressor 1 low-pressure side of high compression ratio; The pressure of described low-temperature refrigerant 13 in the time of the highest condensation temperature is lower than the on high-tension side pressure-bearing of compressor 1 of high compression ratio, and the delivery temperature of low-temperature refrigerant 13 after compressor 1 compression of high compression ratio is no more than 100 degree.
As shown in Figure 1, heating in circulation, the compressor 1 of high compression ratio enters in oil separation device 2 after compressing 13 one-tenth high-temperature high-pressure refrigerant steam of low-temperature refrigerant, the refrigeration oil of refrigerant mixed is separated, refrigeration oil is got back in the compressor 1 of high compression ratio, cold-producing medium enters from the first interface 31 of cross valve 3, the interior first interface 31 of cross valve 3 is communicated with the second interface 32, enter in double-tube heat exchanger 4 out from the second interface 32 of cross valve 3, heat is conducted to the water that makes in double-tube heat exchanger 4, make to do after heated 45 DEG C of the water temperature of water heating, after the high-temperature high-pressure refrigerant steam-condensation Cheng Zhongwen high pressure refrigerant liquid of double-tube heat exchanger 4 heat exchange, through heating check valve 5 in liquid storing barrel 6, refrigerant liquid is flowed through and is heated expansion valve 7 throttling expansions and become the gas-fluid two-phase mixture of low-temp low-pressure, enter into the interior evaporation of finned heat exchanger 8, absorb after the heat in low enthalpy air (30 DEG C), flash to low-temp low-pressure superheated steam, in cold-producing medium, enthalpy increases, enter from the 3rd interface 33 of cross valve 3, in cross valve 3, the 3rd interface 33 is communicated with the 4th interface 34, enter again gas separation unit 9 from the 4th interface 34 of cross valve 3 out and carry out gas-liquid separation, gas enters compression again in the compressor 1 of high compression ratio, whole circulation circulates again and again, (30 DEG C) heat absorption from Cryogenic air environment continuously of Novel super-low ring temperature air source heat pump, after again heat being promoted, the hot water of producing 45 DEG C is fed to indoor heating use.
As shown in Figure 2, in kind of refrigeration cycle, the compressor 1 of high compression ratio enters in oil separation device 2 after compressing 13 one-tenth high-temperature high-pressure refrigerant steam of low-temperature refrigerant, the refrigeration oil of refrigerant mixed is separated, refrigeration oil is got back in the compressor 1 of high compression ratio, cold-producing medium enters from the first interface 31 of cross valve 3, the interior first interface 31 of cross valve 3 is communicated with the 3rd interface 33, enter in finned heat exchanger 8 out from the 3rd interface 33 of cross valve 3, heat is discharged in atmospheric environment, refrigerant vapour is condensed into after the refrigerant liquid of middle temperature high pressure, arrive in liquid storing barrel 6 through defrost check valve 11, refrigerant liquid defrost expansion valve 12 throttling expansions of flowing through again become the gas-fluid two-phase mixture of low-temp low-pressure, enter in double-tube heat exchanger 4, absorption makes the heat of water, make will in cold supply chamber, to use after water heat release cooling, two phase refrigerant flashes to superheated refrigerant steam after absorbing heat, enthalpy increases, enter from the second interface 32 of cross valve 3, in cross valve 3, the second interface 32 is communicated with the 4th interface 34, enter again gas separation unit 9 from the 4th interface 34 of cross valve 3 out and carry out gas-liquid separation, gas enters compression again in the compressor 1 of high compression ratio, whole circulation circulates again and again, Novel super-low ring temperature air source heat pump is continuously from making water heat absorption, heat is discharged in atmospheric environment, thereby reach the object of refrigeration.
As shown in Figure 3, in the compressor 1 waste heat recovery process of high compression ratio, the delivery temperature that the compressor 1 of high compression ratio detected when PLC controller reaches after the upper limit, open compressor heat and reclaim magnetic valve 10, draw the waste heat of the compressor 1 that makes water absorb high compression ratio from the water inlet end 41 of double-tube heat exchanger 4, reduce the delivery temperature of the compressor 1 of high compression ratio, after making water heated simultaneously, get back to the water side 42 of double-tube heat exchanger 4, together with water, supply with user's use with making after the interior heating of double-tube heat exchanger 4.Cause when compressor 1 delivery temperature of high compression ratio declines lower the prescribing a time limit that PLC controller is set, compressor heat reclaims magnetic valve 10 and closes, and Novel super-low ring temperature air source heat pump stops compressor 1 waste heat recovery of high compression ratio.The waste heat recovery system of compressor of Novel super-low ring temperature air source heat pump reaches the object of compressor 1 waste heat that reclaims high compression ratio, also reduced delivery temperature and the oil temperature of the compressor 1 of high compression ratio, ensured that the compressor 1 of high compression ratio can move steadily in the long term simultaneously.
In addition, heating circulation time, after the cold-producing medium in finned heat exchanger 8 absorbs heat from atmospheric environment, steam or little water droplet in finned heat exchanger 8 ambient air are frozen into frost or ice with regard to heat release, be attached to finned heat exchanger 8 surfaces, thereby cut off the heat exchange of cold-producing medium and air.Interval time is determined that Novel super-low ring temperature air source heat pump enters defrost program in the temperature difference that the PLC controller of Novel super-low ring temperature air source heat pump exports according to finned heat exchanger 8 outlet temperatures, environment temperature, environment temperature and finned heat exchanger 8 and defrost.In the time entering defrost program, concrete steps are as follows:
(1) gather the environment temperature of environment temperature sensor and finned heat exchanger 8 outlet temperatures of fin temperature sensor by PLC controller, gather the defrost time of defrost timer simultaneously;
(2) carry out the temperature difference of computing environment temperature and finned heat exchanger 8 outlet temperatures by PLC controller;
(3) judge whether finned heat exchanger 8 outlet temperatures are less than temperature difference that whether 0 degree, environment temperature be less than 5 degree, environment temperature and finned heat exchanger 8 outlet temperatures and whether are greater than 8 degree and defrost time are whether to move more than 12 minutes 1 working time of compressor of high compression ratio, when finned heat exchanger 8 outlet temperatures are greater than, temperature difference that 0 degree, environment temperature be greater than 5 degree, environment temperature and finned heat exchanger 8 outlet temperatures is less than 8 degree and the defrost time is no more than 12 minutes, enters into step (1); Be greater than 8 degree and defrost time more than 12 minutes when finned heat exchanger 8 outlet temperatures are less than temperature difference that 0 degree, environment temperature be less than 5 degree, environment temperature and finned heat exchanger 8 outlet temperatures, enter into step (4);
(4) by PLC controller switching cross valve 3, Novel super-low ring temperature air source heat pump is entered in refrigeration mode, gather compressor 1 inlet temperature of high compression ratio of inlet temperature sensor by PLC controller, judge whether the compressor 1 import temperature of high compression ratio and the temperature difference of environment temperature are less than 5 degree and defrost time are whether to move more than 15 seconds 1 working time of compressor of high compression ratio simultaneously;
(5), when the compressor 1 import temperature of high compression ratio and the temperature difference of environment temperature is greater than 5 degree and the defrost time is no more than 15 seconds, enter into step (4); When the compressor 1 import temperature of high compression ratio and the temperature difference of environment temperature were less than 5 degree and defrost time more than 15 seconds, enter into step (6);
(6) by PLC controller switching cross valve 3, Novel super-low ring temperature air source heat pump is entered in heating mode, and enter into step (1).
Claims (6)
1. a Novel super-low ring temperature air source heat pump, is characterized in that, comprises the compressor (1) of high compression ratio, oil separation device (2), cross valve (3), double-tube heat exchanger (4), heat check valve (5), liquid storing barrel (6), heat expansion valve (7), finned heat exchanger (8), gas separation unit (9), defrost check valve (11), defrost expansion valve (12) and low-temperature refrigerant (13), described cross valve (3) comprises first interface (31), the second interface (32), the 3rd interface (33) and the 4th interface (34), described heat check valve (5) and defrost expansion valve (12) parallel connection, described expansion valve (7) and defrost check valve (11) parallel connection, the compressor (1) of described high compression ratio of heating, the first interface (31) of oil separation device (2) and cross valve (3) is connected successively, second interface (32) of described cross valve (3), double-tube heat exchanger (4), heat check valve (5), liquid storing barrel (6), heat expansion valve (7), the 3rd interface (33) of finned heat exchanger (8) and cross valve (3) is connected successively, the 4th interface (34) of described cross valve (3), the compressor (1) of gas separation unit (9) and high compression ratio is connected successively, described low-temperature refrigerant (13) is arranged in the compressor (1) of high compression ratio, described double-tube heat exchanger (4) comprises water inlet end (41) and water side (42), the water inlet end (41) of magnetic valve (10) joint sleeve heat exchanger (4), the water side (42) of compressor (1) other end joint sleeve heat exchanger (4) of described high compression ratio are reclaimed in compressor (1) one end of described high compression ratio by compressor heat.
2. a kind of Novel super-low ring temperature air source heat pump according to claim 1, it is characterized in that, the compressor (1) of described high pressure ratio is semi-hermetic piston-type refrigeration compressor, it is made up of the motor of resistance to fluorine, cylinder body, bent axle, connecting rod, heater, cylinder cap, refrigeration oil, controller, oil pump and oil pressure shut-off switch, the minimum evaporating temperature that the compressor (1) of described high compression ratio allows is 45 DEG C, high evaporation temperature is 7 DEG C, and the highest condensation temperature is 62 DEG C.
3. a kind of Novel super-low ring temperature air source heat pump according to claim 1 and 2, is characterized in that, the pressure of described low-temperature refrigerant (13) in the time of minimum evaporating temperature is lower than the pressure-bearing of compressor (1) low-pressure side of high compression ratio; The pressure of described low-temperature refrigerant (13) in the time of the highest condensation temperature is lower than the on high-tension side pressure-bearing of compressor (1) of high compression ratio.
4. a kind of Novel super-low ring temperature air source heat pump according to claim 3, is characterized in that, the delivery temperature of described low-temperature refrigerant (13) after compressor (1) compression of high compression ratio is no more than 100 degree.
5. a kind of Novel super-low ring temperature air source heat pump according to claim 1, it is characterized in that, also comprise environment temperature sensor, defrost timer and PLC controller, the exit of described finned heat exchanger (8) is provided with fin temperature sensor, the import department of the compressor (1) of described high compression ratio is provided with inlet temperature sensor, and described environment temperature sensor, defrost timer, fin temperature sensor, inlet temperature sensor and cross valve (3) are connected with PLC controller respectively.
6. a kind of Novel super-low ring temperature air source heat pump according to claim 5, it is characterized in that, the exhaust ports of the compressor (1) of described high compression ratio is provided with exhaust gas temperature sensor, and described exhaust gas temperature sensor reclaims magnetic valve (10) with compressor heat and is connected with PLC controller respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132963.2U CN203810792U (en) | 2014-03-24 | 2014-03-24 | Novel ultralow environment temperature air source heat pump |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420132963.2U CN203810792U (en) | 2014-03-24 | 2014-03-24 | Novel ultralow environment temperature air source heat pump |
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| CN203810792U true CN203810792U (en) | 2014-09-03 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968603A (en) * | 2014-03-24 | 2014-08-06 | 中国铁道科学研究院 | Novel ultralow ambient temperature air source heat pump and fin type heat exchanger defrosting method thereof |
| CN108266900A (en) * | 2017-12-29 | 2018-07-10 | 广东高而美制冷设备有限公司 | A kind of control method based on water temperature control crankshaft heating band start and stop |
| CN108895703A (en) * | 2018-08-09 | 2018-11-27 | 烟台睿加节能科技有限公司 | A kind of air-source refrigerating and heating combined equipment and method |
| CN110057103A (en) * | 2019-05-30 | 2019-07-26 | 刘赟 | Air heat-exchanging device, liquid bag type evaporator fin, air energy heat pump and water heater |
-
2014
- 2014-03-24 CN CN201420132963.2U patent/CN203810792U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103968603A (en) * | 2014-03-24 | 2014-08-06 | 中国铁道科学研究院 | Novel ultralow ambient temperature air source heat pump and fin type heat exchanger defrosting method thereof |
| CN103968603B (en) * | 2014-03-24 | 2016-08-17 | 中国铁道科学研究院 | A kind of ultra-low-loop temperature air source heat pump and finned heat exchanger defrosting method thereof |
| CN108266900A (en) * | 2017-12-29 | 2018-07-10 | 广东高而美制冷设备有限公司 | A kind of control method based on water temperature control crankshaft heating band start and stop |
| CN108266900B (en) * | 2017-12-29 | 2020-08-28 | 广东高而美制冷设备有限公司 | Control method for controlling starting and stopping of crankshaft heating belt based on water temperature |
| CN108895703A (en) * | 2018-08-09 | 2018-11-27 | 烟台睿加节能科技有限公司 | A kind of air-source refrigerating and heating combined equipment and method |
| CN110057103A (en) * | 2019-05-30 | 2019-07-26 | 刘赟 | Air heat-exchanging device, liquid bag type evaporator fin, air energy heat pump and water heater |
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