CN205208928U - Big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater - Google Patents
Big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater Download PDFInfo
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- CN205208928U CN205208928U CN201521104896.4U CN201521104896U CN205208928U CN 205208928 U CN205208928 U CN 205208928U CN 201521104896 U CN201521104896 U CN 201521104896U CN 205208928 U CN205208928 U CN 205208928U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 230000006835 compression Effects 0.000 title claims abstract description 31
- 238000007906 compression Methods 0.000 title claims abstract description 31
- 239000003507 refrigerant Substances 0.000 claims abstract description 66
- 239000007788 liquid Substances 0.000 claims abstract description 60
- 239000000498 cooling water Substances 0.000 claims abstract description 10
- 238000010438 heat treatment Methods 0.000 claims description 35
- 239000003921 oil Substances 0.000 description 45
- 239000003795 chemical substances by application Substances 0.000 description 5
- 239000010687 lubricating oil Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 230000005494 condensation Effects 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 238000001704 evaporation Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001932 seasonal effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000010257 thawing Methods 0.000 description 1
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Abstract
The utility model provides a big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater, high pressure compressor's export and the refrigerant of first condenser entry intercommunication, the refrigerant export of first condenser feeds through through a throttling arrangement and a vapour and liquid separator's entry, a vapour and liquid separator's gas outlet and high pressure compressor's entry intercommunication, its liquid outlet is through the check valve, the 2nd throttling arrangement feeds through with the entry of evaporimeter, the export of evaporimeter and low pressure compressor's entry intercommunication, low pressure compressor's export divide into two strands, the one is through the refrigerant entry intercommunication of first stop valve with the second condenser, the refrigerant export of second condenser and the 2nd throttling arrangement's entry intercommunication, second stop valve and high pressure compressor's entry intercommunication is crossed to another stock -traders' know -how, total cooling water inlet passes through water pump and second condenser, first condenser intercommunication, and the hot water export of first condenser is total hot water export. The utility model discloses significantly reduce the consumption, promote the efficiency and increase the work warm area.
Description
Technical field
The utility model relates to hot water apparatus, especially a kind of heat pump water-heating machine.
Background technology
Deepen instantly in the day by day serious especially haze harm of Environment and energy problem, the Teat pump boiler of energy-conserving and environment-protective has become requisite a kind of device in the life with significant market prospect.But Teat pump boiler still needs to consume a large amount of electric energy after all, therefore improve its efficiency and become an emphasis improved.In addition, at the temperature that northern China winter is lower, common Teat pump boiler efficiency sharply declines even cannot run and also seriously constrains its energy-saving effect.
Summary of the invention
In order to overcome the deficiency that power consumption is comparatively large, efficiency is lower, operation temperature area is wide not of existing Teat pump boiler, the utility model provides a kind of large efficiently temperature rise two-stage throttling two stages of compression heat pump water-heating machine greatly reducing power consumption, improving energy efficiency, increase operation temperature area.
The utility model solves the technical scheme that its technical problem adopts:
A kind of large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently, described heat pump water-heating machine comprises high pressure compressor, low pressure compressor, first condenser, second condenser, first gas-liquid separator and evaporimeter, the outlet of described high pressure compressor is communicated with the refrigerant inlet of described first condenser, the refrigerant outlet of described first condenser is communicated with through the entrance of first throttle device with described first gas-liquid separator, the gas vent of described first gas-liquid separator is communicated with the entrance of described high pressure compressor, the liquid outlet of described first gas-liquid separator is communicated with through the entrance of check valve with the second throttling arrangement, the outlet of described second throttling arrangement is communicated with the entrance of described evaporimeter, the outlet of described evaporimeter is communicated with the entrance of described low pressure compressor, the outlet of described low pressure compressor is divided into two strands, one is communicated with through the refrigerant inlet of the first stop valve with the second condenser, the refrigerant outlet of described second condenser is communicated with the entrance of described second throttling arrangement, another stock-traders' know-how is crossed the second stop valve and is communicated with the entrance of high pressure compressor,
Total cooling water inlet is communicated with by the cooling water inlet of water pump with the second condenser, and the hot water outlet of described second condenser is communicated with the cooling water inlet of described first condenser, and the hot water outlet of described first condenser is total hot water outlet.
Further, the outlet of described evaporimeter is communicated with the entrance of the second gas-liquid separator, and the gas vent of described second gas-liquid separator is communicated with the entrance of described low pressure compressor.
Further again, the outlet of described high pressure compressor is connected with the first oil eliminator entrance, the oil export of described first oil eliminator is communicated with the entrance of described high pressure compressor, and the refrigerant outlet of described first oil eliminator is communicated with the refrigerant inlet of described first condenser; The outlet of described low pressure compressor is connected with the second oil eliminator entrance, the oil export of described second oil eliminator is communicated with the entrance of described low pressure compressor, and the refrigerant outlet of described second oil eliminator is divided into two stocks not to be connected with the entrance of the first stop valve and the entrance of the second stop valve.
Between the refrigerant outlet of described second condenser and the entrance of described evaporimeter, defrost arm is set, described defrost arm installs the 3rd stop valve.
The outlet of described evaporimeter is communicated with the entrance of described high pressure compressor through the 4th stop valve, the gas vent of the first gas-liquid separator is connected with the 5th stop valve entrance, and the 5th stop valve outlet exports with the second stop valve respectively, the 4th stop valve exports, high pressure compressor entrance is connected.
Or: the outlet of described second gas-liquid separator is communicated with the entrance of described high pressure compressor through the 4th stop valve, the gas vent of described first gas-liquid separator is connected with the 5th stop valve entrance, and the 5th stop valve outlet exports with the second stop valve respectively, the 4th stop valve exports, high pressure compressor entrance is connected.
The beneficial effects of the utility model are mainly manifested in:
1, adopt the throttling of two stages of compression two-stage, greatly extend the scope of application compared with single-stage heat pump, improve efficiency.
2, compare existing two stages of compression heat pump, have employed two-step heating hot water dexterously, when hot water temperature rise is larger, the wasted work of high pressure compressor can be greatly reduced, namely improve system energy efficiency further.Essentially, existing directly-heated type Teat pump boiler has larger heat transfer temperature difference and namely produces larger entropy product, cold water and hot water then can mix and causes larger entropy and produce equally by circulating heat pump water heater, the utility model then decreases above-mentioned entropy and produces, and improves the thermodynamics integrity of system.
3, most suitable pattern can be selected under different seasons, different external condition, promote seasonal energy efficiency to greatest extent, and ensure the stable operation of system.The simple pipeline of parts is flexible, switches the two stages of compression two-step heating pattern that how realizes, two stages of compression one-level heating mode, low-pressure stage compression single-stage heating mode, hiigh pressure stage compression single-stage heating mode and hot-gas bypass defrost pattern by a small amount of stop valve.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently.
Fig. 2 is the schematic diagram of another kind of large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently.
Fig. 3 is the schematic diagram of another efficient large temperature rise two-stage throttling two stages of compression heat pump water-heating machine.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is further described.
With reference to Fig. 1 ~ Fig. 3, a kind of large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently, comprise high pressure compressor 1, low pressure compressor 10, first condenser 3, second condenser 13, first gas-liquid separator 5 and evaporimeter 8, the outlet of described high pressure compressor 1 is communicated with the refrigerant inlet of described first condenser 3, the refrigerant outlet of described first condenser 3 is communicated with through the entrance of first throttle device 4 with described first gas-liquid separator 5, the gas vent of described first gas-liquid separator 5 is communicated with the entrance of described high pressure compressor 1, the liquid outlet of described first gas-liquid separator 5 is communicated with through the entrance of check valve 6 with the second throttling arrangement 7, the outlet of described second throttling arrangement 7 is communicated with the entrance of described evaporimeter 8, the outlet of described evaporimeter 8 is communicated with the entrance of described low pressure compressor 10, the outlet of described low pressure compressor 10 is divided into two strands, one is communicated with through the refrigerant inlet of the first stop valve 12 with the second condenser 13, the refrigerant outlet of described second condenser 13 is communicated with the entrance of described second throttling arrangement 7, another stock-traders' know-how is crossed the second stop valve 14 and is communicated with the entrance of high pressure compressor 1,
Total cooling water inlet is communicated with the cooling water inlet of the second condenser 13 by water pump 15, and the hot water outlet of described second condenser 13 is communicated with the cooling water inlet of described first condenser 3, and the hot water outlet of described first condenser 3 is total hot water outlet.
Further, the outlet of described evaporimeter 8 is communicated with the entrance of the second gas-liquid separator 9, and the gas vent of described second gas-liquid separator 9 is communicated with the entrance of described low pressure compressor 10.
Further again, the outlet of described high pressure compressor 1 is connected with the first oil eliminator 2 entrance, the oil export of described first oil eliminator 2 is communicated with the entrance of described high pressure compressor 1, and the refrigerant outlet of described first oil eliminator 2 is communicated with the refrigerant inlet of described first condenser 3; The outlet of described low pressure compressor 10 is connected with the second oil eliminator 11 entrance, the oil export of described second oil eliminator 11 is communicated with the entrance of described low pressure compressor 10, and the refrigerant outlet of described second oil eliminator 11 is divided into two stocks not to be connected with the entrance of the first stop valve and the entrance of the second stop valve.
Between the refrigerant outlet of described second condenser 13 and the entrance of described evaporimeter 8, defrost arm is set, described defrost arm installs the 3rd stop valve 16.
The outlet of described evaporimeter is communicated with the entrance of described high pressure compressor through the 4th stop valve, the gas vent of the first gas-liquid separator is connected with the 5th stop valve entrance, and the 5th stop valve outlet exports with the second stop valve respectively, the 4th stop valve exports, high pressure compressor entrance is connected.
Or: the gas vent of described second gas-liquid separator 9 is communicated with through the entrance of the 4th stop valve 17 with described high pressure compressor 1, the gas vent of described first gas-liquid separator 5 is connected with the 5th stop valve 18 entrance, the 5th stop valve 18 export export with the second stop valve 14 respectively, the 4th stop valve 17 exports, high pressure compressor 1 entrance is connected.
The course of work of the present embodiment is:
With reference to Fig. 1:
Two stages of compression two-step heating pattern: when environment temperature is lower, required hot water temperature is higher again, and adopts this pattern when inlet water temperature is lower, and the first stop valve 12 and the second stop valve 14 are all opened, high pressure compressor 1, low pressure compressor 10 all run, and water pump 15 runs.The oil-containing gaseous refrigerant of HTHP exports outflow from high pressure compressor 1 and enters the first oil eliminator 2, lubricating oil in refrigerating agent containing oil is separated at the first oil eliminator and flows out from the oil export of the first oil eliminator 2 and gets back to suction port of compressor, the cold-producing medium of HTHP flows out from the refrigerant outlet of oil eliminator and enters the first condenser 3 refrigerant inlet exothermic condensation, the liquid refrigerant of high pressure flows out after first throttle device 4, become middle pressure gas-liquid mixed refrigerant the entrance entering the first gas-liquid separator 5 from the refrigerant outlet of the first condenser 3, gaseous refrigerant flows out from the gas vent of the first gas-liquid separator 5, liquid refrigerant from the liquid outlet of the first gas-liquid separator 5 flow out mix with the liquid refrigerant from the second condenser 13 after check valve 6 after after the second throttling arrangement 7, become low-temp low-pressure refrigerant air-liquid mixture enter evaporimeter 8 absorbing environmental heat, then low-temp low-pressure gaseous refrigerant after heat absorption evaporation is inhaled into the entrance of low pressure compressor 10 through the second gas-liquid separator 9, the refrigerating agent containing oil of medium temperature and medium pressure is discharged from the outlet of low pressure compressor 10 and is entered the second oil eliminator 11, lubricating oil wherein flows out from the oil export of the second oil eliminator 11 entrance returning low pressure compressor 10, the cold-producing medium of medium temperature and medium pressure then flows out from the refrigerant outlet of the second oil eliminator 11 and is divided into two strands, one enters condensation heat release in the second condenser 13 through the first stop valve 12 and becomes the liquid refrigerant of middle pressure, with the refrigerant mixed from one-way valved outlet after flowing out from the refrigerant outlet of the second condenser 13, another road returns the entrance of high pressure compressor 1 after the second stop valve 14 with the refrigerant mixed from the first gas-liquid separator 5 gas vent.Cold water enters in the second condenser 13 and is tentatively heated after water pump 15, becomes middle warm water, and then enters the first condenser 3 and be further heated, and flows out supply user after becoming high-temperature-hot-water from the first condenser 3 water out.
In order to energy-saving effect of the present utility model is described better, shown below is systematic simulation calculation result based on two stages of compression two-step heating pattern and with traditional single-stage heat pump and be representative with patent (200720039229.1) two stages of compression heat pump (comprise and spray enthalpy increasing heat pump) contrasts.During calculating, all parts is according to the conservation of mass and conservation of energy modeling, compressor isentropic efficiency adopts the (InternationalJournalofRefrigeration such as Navarro-Peris, 2013,36 (7)) equation proposed, ignore pipeline friction loss and leak heat, other setup parameters, in table 1, the results are shown in Table 2.
As can be known from the results of Table 2, COP of the present utility model is the highest, higher than two stages of compression heat pump by 22.5%, exceeds 40.4% especially than traditional single-stage heat pump.
Table 1
Table 2
Two stages of compression two-step heating pattern: when environment temperature is lower, required hot water temperature is higher again, and adopts this pattern when inlet water temperature is more higher than environment temperature, first stop valve 12 is closed, second stop valve 14 is opened, and high pressure compressor 1, low pressure compressor 10 all run, and water pump 15 runs.Running is now compared with regular run mode, and because the first stop valve 12 is closed, the second condenser 13 does not work, from water pump 15 out cold water do not heated when the second condenser 13, but only to be heated in the first condenser 3.
Low-pressure stage compression single-stage heating mode: when environment temperature is relatively high, and adopt this pattern when required hot water temperature is normal.First stop valve 12 is opened, and the second stop valve 14 is closed, and high pressure compressor 1 cuts out, and low pressure compressor 10 runs, and water pump 15 runs.The refrigerating agent containing oil of HTHP is discharged from the outlet of low pressure compressor 10 and is entered the second oil eliminator 11, lubricating oil wherein flows out from the oil export of the second oil eliminator 11 entrance returning low pressure compressor 10, the cold-producing medium of medium temperature and medium pressure then flows out from the refrigerant outlet of the second oil eliminator 11 and enters through the first stop valve 12 liquid refrigerant that second condenser 13, condensation heat release becomes, the refrigerant air-liquid mixture becoming low-temp low-pressure after the refrigerant outlet outflow of the second condenser 13 after the second throttling arrangement 7 enters evaporimeter 8 absorbing environmental heat, low-temp low-pressure gaseous refrigerant after heat absorption evaporation is inhaled into the entrance of low pressure compressor 10 through the second gas-liquid separator 9.Cold water enters in the second condenser 13 and is heated after water pump 15, because the first condenser 3 does not work, is not heated when hot water flows through the first condenser 3, finally flows out supply user from the first condenser 3 water out.
With reference to Fig. 2: when outdoor environment temperature is near or below 0 DEG C, evaporating temperature can reach less than 0 DEG C, may frosting freeze outside evaporimeter, now needs to carry out defrost to the evaporimeter of heat pump water-heating machine.Therefore, the basis of Fig. 1 adds the 3rd stop valve 16 between the refrigerant outlet of the second condenser 2 and the entrance of evaporimeter 8, and connects with pipeline, hot-gas bypass defrosting function can be realized, heat pump water-heating machine can more stably be run.Except increasing defrost power, the function that this flow process can realize is the same with Fig. 1's, and the 3rd stop valve 16 keeps closing when realizing the pattern of Fig. 1.
Hot-gas bypass defrost pattern: the first stop valve 12 is opened, the second stop valve 14 is closed, the 3rd stop valve 16 is opened, and high pressure compressor 1 cuts out, and low pressure compressor 10 runs, and water pump 15 cuts out.The gaseous state refrigerating agent containing oil of HTHP is discharged from the outlet of low pressure compressor 10 and is entered the second oil eliminator 11, lubricating oil wherein flows out from the oil export of the second oil eliminator 11 entrance returning low pressure compressor 10, high temperature liquid refrigerant then flows out through the first stop valve 12 and the second condenser 13 from the refrigerant outlet of the second oil eliminator 11, because water pump 15 cuts out, second condenser 13 does not work, high temperature liquid refrigerant does not carry out heat exchange in the second condenser 13, high temperature liquid refrigerant enters evaporimeter 8 heat release after the refrigerant outlet of the second condenser 13 flows out after the 3rd stop valve 16, make the defrost of evaporimeter outer wall, cold-producing medium exports the entrance flowing out and be finally inhaled into low pressure compressor 10 after the second gas-liquid separator 9 from evaporimeter 8.
With reference to Fig. 3:
When environment temperature is relatively high, and required hot water temperature normal time, low pressure compressor 10 is adopted to carry out single stage compress heating mode in the embodiment of Fig. 1, and in Fig. 3, add the 4th stop valve 17 and the 5th stop valve 18, make also can adopt high pressure compressor 1 when carrying out single stage compress heating, because high pressure compressor 1 is different with cylinder dimensions from the rated power of low pressure compressor 10, therefore expand the heating power scope of single stage compress heating mode, also improve the utilization rate of high pressure compressor simultaneously.This flow process is except can realizing hiigh pressure stage compression single-stage heating mode, and also can realize all operational modes of Fig. 1 and Fig. 2, only the 4th stop valve 17 need be kept closing, the 5th stop valve 18 is held open.
Hiigh pressure stage compression single-stage heating mode: the first stop valve 12, second stop valve the 14, three stop valve the 16, five stop valve 18 is closed, and the 4th stop valve 17 is opened, and high pressure compressor 1 and water pump 15 are opened, and low pressure compressor 10 cuts out.The oil-containing gaseous refrigerant of HTHP exports outflow from high pressure compressor 1 and enters the first oil eliminator 2, lubricating oil in refrigerating agent containing oil is separated at the first oil eliminator and flows out from the oil export of the first oil eliminator 2 and gets back to suction port of compressor, the cold-producing medium of HTHP flows out from the refrigerant outlet of oil eliminator and enters the first condenser 3 refrigerant inlet exothermic condensation, the liquid refrigerant of high pressure becomes the gas-liquid mixed refrigerant of middle pressure from the refrigerant outlet outflow of the first condenser 3 and enters the entrance of the first gas-liquid separator 5 and flow out after check valve 6 again through the second throttling arrangement 7 from the liquid outlet of the first gas-liquid separator 5 after first throttle device 4, the refrigerant air-liquid mixture becoming low-temp low-pressure enters evaporimeter 8 absorbing environmental heat, then low-temp low-pressure gaseous refrigerant after heat absorption evaporation returns the entrance of high pressure compressor 1 through Section of four stop valve 17 through the second gas-liquid separator 9.Cold water flows through the second condenser 13 but does not heat after water pump 15, and then enters the first condenser 3 and heated, and flows out supply user after becoming high-temperature-hot-water from the first condenser 3 water out.
Claims (8)
1. an efficient large temperature rise two-stage throttling two stages of compression heat pump water-heating machine, it is characterized in that: described heat pump water-heating machine comprises high pressure compressor, low pressure compressor, first condenser, second condenser, first gas-liquid separator and evaporimeter, the outlet of described high pressure compressor is communicated with the refrigerant inlet of described first condenser, the refrigerant outlet of described first condenser is communicated with through the entrance of first throttle device with described first gas-liquid separator, the gas vent of described first gas-liquid separator is communicated with the entrance of described high pressure compressor, the liquid outlet of described first gas-liquid separator is communicated with through the entrance of check valve with the second throttling arrangement, the outlet of described second throttling arrangement is communicated with the entrance of described evaporimeter, the outlet of described evaporimeter is communicated with the entrance of described low pressure compressor, the outlet of described low pressure compressor is divided into two strands, one is communicated with through the refrigerant inlet of the first stop valve with the second condenser, the refrigerant outlet of described second condenser is communicated with the entrance of described second throttling arrangement, another stock-traders' know-how is crossed the second stop valve and is communicated with the entrance of high pressure compressor,
Total cooling water inlet is communicated with by the cooling water inlet of water pump with the second condenser, and the hot water outlet of described second condenser is communicated with the cooling water inlet of described first condenser, and the hot water outlet of described first condenser is total hot water outlet.
2. large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently as claimed in claim 1, it is characterized in that: the outlet of described evaporimeter is communicated with the entrance of the second gas-liquid separator, the gas vent of described second gas-liquid separator is communicated with the entrance of described low pressure compressor.
3. large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently as claimed in claim 1, it is characterized in that: the outlet of described high pressure compressor is connected with the first oil eliminator entrance, the oil export of described first oil eliminator is communicated with the entrance of described high pressure compressor, and the refrigerant outlet of described first oil eliminator is communicated with the refrigerant inlet of described first condenser; The outlet of described low pressure compressor is connected with the second oil eliminator entrance, the oil export of described second oil eliminator is communicated with the entrance of described low pressure compressor, and the refrigerant outlet of described second oil eliminator is divided into two stocks not to be connected with the entrance of the first stop valve and the entrance of the second stop valve.
4. large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently as claimed in claim 2, it is characterized in that: the outlet of described high pressure compressor is connected with the first oil eliminator entrance, the oil export of described first oil eliminator is communicated with the entrance of described high pressure compressor, and the refrigerant outlet of described first oil eliminator is communicated with the refrigerant inlet of described first condenser; The outlet of described low pressure compressor is connected with the second oil eliminator entrance, the oil export of described second oil eliminator is communicated with the entrance of described low pressure compressor, and the refrigerant outlet of described second oil eliminator is divided into two stocks not to be connected with the entrance of the first stop valve and the entrance of the second stop valve.
5. the large efficiently temperature rise two-stage throttling two stages of compression heat pump water-heating machine as described in one of Claims 1 to 4, it is characterized in that: between the refrigerant outlet of described second condenser and the entrance of described evaporimeter, defrost arm is set, described defrost arm installs the 3rd stop valve.
6. the large efficiently temperature rise two-stage throttling two stages of compression heat pump water-heating machine as described in one of Claims 1 to 4, it is characterized in that: the outlet of described evaporimeter is communicated with the entrance of described high pressure compressor through the 4th stop valve, the gas vent of the first gas-liquid separator is connected with the 5th stop valve entrance, and the 5th stop valve outlet exports with the second stop valve respectively, the 4th stop valve exports, high pressure compressor entrance is connected.
7. large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently as claimed in claim 5, it is characterized in that: the outlet of described evaporimeter is communicated with the entrance of described high pressure compressor through the 4th stop valve, the gas vent of the first gas-liquid separator is connected with the 5th stop valve entrance, and the 5th stop valve outlet exports with the second stop valve respectively, the 4th stop valve exports, high pressure compressor entrance is connected.
8. large temperature rise two-stage throttling two stages of compression heat pump water-heating machine efficiently as claimed in claim 2, it is characterized in that: the gas vent of described second gas-liquid separator is communicated with the entrance of described high pressure compressor through the 4th stop valve, the gas vent of described first gas-liquid separator is connected with the 5th stop valve entrance, and the 5th stop valve outlet exports with the second stop valve respectively, the 4th stop valve exports, high pressure compressor entrance is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201521104896.4U CN205208928U (en) | 2015-12-25 | 2015-12-25 | Big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater |
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| CN201521104896.4U CN205208928U (en) | 2015-12-25 | 2015-12-25 | Big temperature rise two -stage of efficient throttle two -stage compression heat pump water heater |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526735A (en) * | 2015-12-25 | 2016-04-27 | 徐英杰 | High-efficiency big-temperature rise heat pump water heater with two stages of throttling and two stages of compression |
| CN109812974A (en) * | 2018-04-11 | 2019-05-28 | 浙江工业大学 | The Teat pump boiler of step heating multi-model coupling |
| CN111056581A (en) * | 2020-01-08 | 2020-04-24 | 浙江工业大学 | Two-stage compression heat pump seawater desalination device with freezing and evaporating combined action |
-
2015
- 2015-12-25 CN CN201521104896.4U patent/CN205208928U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526735A (en) * | 2015-12-25 | 2016-04-27 | 徐英杰 | High-efficiency big-temperature rise heat pump water heater with two stages of throttling and two stages of compression |
| CN105526735B (en) * | 2015-12-25 | 2018-12-21 | 苏州热火能源科技有限公司 | A kind of efficient big temperature rise two-stage throttling two stages of compression heat pump water-heating machine |
| CN109812974A (en) * | 2018-04-11 | 2019-05-28 | 浙江工业大学 | The Teat pump boiler of step heating multi-model coupling |
| CN109812974B (en) * | 2018-04-11 | 2021-05-18 | 浙江工业大学 | Step heating multi-mode coupling heat pump water heater |
| CN111056581A (en) * | 2020-01-08 | 2020-04-24 | 浙江工业大学 | Two-stage compression heat pump seawater desalination device with freezing and evaporating combined action |
| CN111056581B (en) * | 2020-01-08 | 2024-06-21 | 浙江工业大学 | Freezing evaporation combined two-stage compression heat pump sea water desalination device |
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Effective date of registration: 20160804 Address after: Wujiang District of Suzhou City, Jiangsu province 215000 Lili town Lu Xin Road No. 627 Patentee after: Suzhou heat energy technology Co., Ltd. Address before: 310017 Dongfang Lido garden, Hangzhou, Zhejiang 1-502, Jianggan District Patentee before: Xu Yingjie |
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Granted publication date: 20160504 Effective date of abandoning: 20181221 |