CN101482321B - Ultra-low temperature heat pump water heater - Google Patents
Ultra-low temperature heat pump water heater Download PDFInfo
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- CN101482321B CN101482321B CN2009101110686A CN200910111068A CN101482321B CN 101482321 B CN101482321 B CN 101482321B CN 2009101110686 A CN2009101110686 A CN 2009101110686A CN 200910111068 A CN200910111068 A CN 200910111068A CN 101482321 B CN101482321 B CN 101482321B
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Abstract
The invention relates to an ultralow temperature heat pump water heater, comprising a compressor, a hot water heat interchanger, a throttle mechanism, a flash charge air cooler, an outdoor heat interchanger, a gas-liquid separator, a heat preservation water tank, a water pump, a defrosting magnetic valve. In the invention, a steam injection device of the flash charge air cooler is arranged, operating under ultralow temperature for producing hot water, the heat pump water heater of the invention adopts flash charge air cooler injection refrigerant to increase suction intensity of the compressor, which contributes to increasing mass flux in the major cycle, thus increasing heating capacity and reducing discharge temperature and compression ratio of the compressor. The water heater of the invention has the advantage of simple structure, easy production, low production cost, high efficiency and energy saving and reliable and stable operation.
Description
One, technical field
The present invention relates to the air source hot pump water heater field, refer more particularly to the Teat pump boiler that under outdoor ultralow temperature operating mode, has good heating effect.
Two, background technology
At present, the normal air source heat pump water heater of selling on the market, under the operating mode of outdoor low temperature, the heating capacity decay is very serious, even can't normally start operation, can't satisfy basic heat supply water demand in the winter of northern China cold.Therefore generally still adopt heating wire or coal gas in the area of cold, and need consume a large amount of coal gas and electric energy during these heat supply water, both contaminated environment is also uneconomical, and energy-saving and emission-reduction are advocated in the whole world now.So need exploitation ultra-low temperature heat pump water heater a kind of simple in structure, easy to manufacture, cheap, energy-efficient.
Three, summary of the invention
The present invention is a kind of ultra-low temperature heat pump water heater, provides a kind of and can normally start operation and have the ultra-low temperature heat pump water heater that well heats the water effect under outdoor ultralow temperature operating mode.
The present invention constitutes like this:
Ultra-low temperature heat pump water heater, by compressor, hot water heat exchanger, throttle mechanism, the shwoot charge air cooler, outdoor heat exchanger, gas-liquid separator, attemperater, water pump, the defrost magnetic valve is formed, it is characterized in that: the outlet of described compressor is leaded up to pipeline and is linked to each other with the hot water heat exchanger refrigerant inlet, the hot water heat exchanger refrigerant outlet links to each other with the inlet of filter, the outlet of filter links to each other with the inlet that heats a throttle mechanism, the outlet that heats a throttle mechanism links to each other with the inlet of shwoot charge air cooler, one outlet of shwoot charge air cooler links to each other with round-the-clock throttle mechanism inlet, the outlet of round-the-clock throttle mechanism links to each other with the inlet of outdoor heat exchanger, the outlet of outdoor heat exchanger links to each other with the inlet of gas-liquid separator, and the outlet of gas-liquid separator links to each other with the inlet of compressor; Another road of the outlet of compressor links to each other with the inlet of defrost magnetic valve, and the outlet of defrost magnetic valve links to each other with the inlet of outdoor heat exchanger, and another outlet of shwoot charge air cooler links to each other with the inlet of gas-liquid separator by magnetic valve; The attemperater hot water outlet links to each other with pump entrance, and exit of pump links to each other with the hot water heat exchanger hot water inlet, and the hot water heat exchanger hot water outlet links to each other with the attemperater hot water inlet.
Described round-the-clock throttle mechanism is by composing in parallel with heating throttle mechanism with heating throttle mechanism and winter summer, with heat second throttle element be composed in series by a magnetic valve and a summer with heating throttle mechanism described summer, and described winter is with heating throttle mechanism by being composed in series with heating the second throttle element in a magnetic valve and a winter.
Ultra-low temperature heat pump water heater of the present invention, be provided with shwoot charge air cooler steam injection equipment, identically with the ordinary hot pump water heater under nominal situation heat water running, when worst cold case moves, utilize the agent of shwoot charge air cooler ejector refrigeration, the compressor air suction amount is increased, help to increase the refrigerant mass fluxes in the major cycle, thereby the increase heating capacity, the compression ratio and the delivery temperature of reduction compressor.The present invention is simple in structure, easy to manufacture, cheap, energy-efficient, stable and reliable operation.
Four, description of drawings
Fig. 1 is the ultra-low temperature heat pump water heater schematic diagram.
Fig. 2 is small-sized ultra-low temperature heat pump water heater schematic diagram.
Fig. 3 is large-scale super low temperature heat pump central heater schematic diagram.
Among the above-mentioned figure, 1 compressor, 2 outdoor heat exchangers, 3 hot water heat exchangers, 4 round-the-clock throttle mechanisms, 5 heat throttle mechanism No. one time, 6 defrost magnetic valves, 7 gas-liquid separators, 8 shwoot charge air coolers, 9,10 magnetic valves, 11 summers are with heating the second throttle element, 12 winters are with heating the second throttle element, 13 filters, 14 magnetic valves, 15 water pumps, 16 attemperaters, 17 heat throttle capillary tube one time, and 18 summers are with heating the second throttle capillary, 19 winters are with heating the second throttle capillary, 20 heat throttle expansion valve or restricting orifice, and 21 summers, 22 winters were with heating second throttle expansion valve or restricting orifice with heating second throttle expansion valve or restricting orifice.
Five, the specific embodiment
As shown in Figure 1, ultra-low temperature heat pump water heater, by compressor 1, hot water heat exchanger 3, throttle mechanism 4.5, shwoot charge air cooler 8, outdoor heat exchanger 2, gas-liquid separator 7, attemperater 16, water pump 15, defrost magnetic valve 6 is formed, it is characterized in that: the outlet of described compressor 1 is leaded up to pipeline and is linked to each other with hot water heat exchanger 3 refrigerant inlets, hot water heat exchanger 3 refrigerant outlets link to each other with the inlet of filter 13, the outlet of filter 13 links to each other with the inlet that heats a throttle mechanism 5, the outlet that heats a throttle mechanism 5 links to each other with the inlet of shwoot charge air cooler 8, one outlet of shwoot charge air cooler 8 links to each other with round-the-clock throttle mechanism 4 inlets, the outlet of round-the-clock throttle mechanism 4 links to each other with the inlet of outdoor heat exchanger 2, the outlet of outdoor heat exchanger 2 links to each other with the inlet of gas-liquid separator 7, and the outlet of gas-liquid separator 7 links to each other with the inlet of compressor 1; Another road of the outlet of compressor 1 links to each other with the inlet of defrost magnetic valve 6, and the outlet of defrost magnetic valve 6 links to each other with the inlet of outdoor heat exchanger 2, and another outlet of shwoot charge air cooler 8 links to each other with the inlet of gas-liquid separator 7 by magnetic valve 14; Attemperater 16 hot water outlets link to each other with water pump 15 inlets, and water pump 15 outlets link to each other with hot water heat exchanger 3 hot water inlets, and hot water heat exchanger 3 hot water outlets link to each other with attemperater 16 hot water inlets.
Described round-the-clock throttle mechanism 4 is by composing in parallel with heating throttle mechanism with heating throttle mechanism and winter summer, with heat second throttle element 11 be composed in series by a magnetic valve 9 and a summer with heating throttle mechanism described summer, and described winter is with heating throttle mechanism by being composed in series with heating second throttle element 12 in a magnetic valve 10 and a winter.
When being greater than or equal to 20 ℃, outside air temperature heats water, open magnetic valve 9, close magnetic valve 10, magnetic valve 14, defrost magnetic valve 6, compressor 1 sucks from gas-liquid separator 7 isolated low-temperature low-pressure refrigerant steams, cold-producing medium is compressed into high temperature and high pressure gas, enter in the hot water heat exchanger 3, cold-producing medium is by the water heat release in the hot water heat exchanger 3, the temperature of water is raise, condensating refrigerant becomes highly pressurised liquid, through filter 13, heat in the throttle mechanism 5 throttlings one-tenth and suppress cryogen, enter shwoot charge air cooler 8 and pass through magnetic valve 9 in the round-the-clock throttle mechanism 4 again, summer is with after heating second throttle element 11 throttling step-downs cooling, inlet chamber external heat exchanger 2, the heat of cold-producing medium absorption chamber outer air in outdoor heat exchanger 2 flashes to the low-pressure low-temperature refrigerant vapour, enters gas-liquid separator 7, sucked compression by compressor 1 again then, finish one like this and heat the water circulation.
When being higher than 0 ℃, outside air temperature is lower than 20 ℃ when heating water, open magnetic valve 10, close magnetic valve 9, magnetic valve 14, defrost magnetic valve 6, compressor 1 sucks from gas-liquid separator 7 isolated low-temperature low-pressure refrigerant steam, cold-producing medium is compressed into high temperature and high pressure gas, enter in the hot water heat exchanger 3, cold-producing medium is by the water heat release in the hot water heat exchanger 3, the temperature of water is raise, condensating refrigerant becomes highly pressurised liquid, through filter 13, heat throttle mechanism 5 throttlings become in the compacting cryogen enter shwoot charge air cooler 8, pass through magnetic valve 10 in the round-the-clock throttle mechanism 4 again, winter, cold-producing medium absorbed the heat of air in outdoor heat exchanger 2 with heating second throttle element 12 throttling step-downs cooling inlet chamber external heat exchanger 2, flash to the low-pressure low-temperature refrigerant vapour, enter gas-liquid separator 7, sucked compression by compressor 1 again then, finish one so again and heat the water circulation.
When being less than or equal to 0 ℃, outside air temperature heats water, open magnetic valve 10, magnetic valve 14, close magnetic valve 9, defrost magnetic valve 6, compressor 1 sucks from gas-liquid separator 7 isolated low-temperature refrigerant steams, cold-producing medium is compressed into high temperature and high pressure gas, enter in the hot water heat exchanger 3, cold-producing medium is by water heat release in the hot water heat exchanger 3, coolant-temperature gage is raise, condensating refrigerant becomes highly pressurised liquid through filter 13, heat press liquid in the throttle mechanism 5 throttlings one-tenth, enter shwoot charge air cooler 8, depress in this that some liquid refrigerant evaporates are refrigerant gas in the shwoot charge air cooler 8, gas is mixed into gas-liquid separator 7 through magnetic valve 14 with from the steam that outdoor heat exchanger 2 comes out, the cold-producing medium of remainder in the shwoot charge air cooler 8, the subcooled liquid of temperature in pressing in then being cooled to, pass through magnetic valve 10 in the round-the-clock throttle mechanism 4 again, winter is with heating second throttle element 12, after the throttling step-down cooling, inlet chamber external heat exchanger 2, the heat of cold-producing medium absorption chamber outer air in outdoor heat exchanger 2, flash to the low-pressure low-temperature refrigerant vapour, the compacting refrigerant gas is mixed in being evaporated with shwoot charge air cooler 8, enter gas-liquid separator 7, sucked compression by compressor 1 again then, finish one so again and heat the water circulation.
Ultra-low temperature heat pump water heater, identically with the ordinary hot pump water heater under nominal situation heat water running, heat the water circulation time at worst cold case, the refrigerant liquid that comes out from hot water heat exchanger carries out preliminary throttling, thereby some refrigerant liquids are gasified remaining refrigerant liquid is cooled, improve major cycle cold-producing medium degree of supercooling, utilize shwoot charge air cooler ejector refrigeration agent steam, the compressor air suction amount is increased, help to increase refrigerant mass fluxes in the major cycle, thereby increase heating capacity, suck more refrigerant gas cooling compressors,, suppress refrigerant gas in the suction so compressor exhaust temperature is lower, so compressor compresses is lower, the present invention is simple in structure, and is easy to manufacture, cheap, energy-efficient, move more reliable and more stable.
In order better to make full use of the principle among Fig. 1: 1) we can be on the basis of Fig. 1, changed summer with heat second throttle capillary 18 with heating second throttle element 11 summer in the round-the-clock throttle mechanism 4, change winter with heat second throttle capillary 19 with heating second throttle element 12 winter, change into and heat throttle capillary tube 17 one time heating a throttle mechanism 5, thereby formed the small-sized ultra-low temperature heat pump water heater of Fig. 2; 2) we can be on the basis of Fig. 1, changed summer with heat second throttle expansion valve or restricting orifice 21 with heating second throttle element 11 summer in the round-the-clock throttle mechanism 4, change winter with heat second throttle expansion valve or restricting orifice 22 with heating second throttle element 12 winter, change into and heat throttle expansion valve or restricting orifice 20 heating throttle mechanism 5, thereby formed the large-scale super low temperature heat pump central heater of Fig. 3.
Round-the-clock throttle mechanism 4 and heat a throttle mechanism 5 and can replace with electric expansion valve.
Claims (2)
1. ultra-low temperature heat pump water heater, by compressor, hot water heat exchanger, throttle mechanism, the shwoot charge air cooler, outdoor heat exchanger, gas-liquid separator, attemperater, water pump, the defrost magnetic valve is formed, it is characterized in that: the outlet of described compressor is leaded up to pipeline and is linked to each other with the hot water heat exchanger refrigerant inlet, the hot water heat exchanger refrigerant outlet links to each other with the inlet of filter, the outlet of filter links to each other with the inlet that heats a throttle mechanism, the outlet that heats a throttle mechanism links to each other with the inlet of shwoot charge air cooler, one outlet of shwoot charge air cooler links to each other with round-the-clock throttle mechanism inlet, the outlet of round-the-clock throttle mechanism links to each other with the inlet of outdoor heat exchanger, the outlet of outdoor heat exchanger links to each other with the inlet of gas-liquid separator, and the outlet of gas-liquid separator links to each other with the inlet of compressor; Another road of the outlet of compressor links to each other with the inlet of defrost magnetic valve, and the outlet of defrost magnetic valve links to each other with the inlet of outdoor heat exchanger, and another outlet of shwoot charge air cooler links to each other with the inlet of gas-liquid separator by magnetic valve; The attemperater hot water outlet links to each other with pump entrance, exit of pump links to each other with the hot water heat exchanger hot water inlet, the hot water heat exchanger hot water outlet links to each other with the attemperater hot water inlet, described compressor has only an air entry, another refrigerant gas that exports out of described shwoot charge air cooler is middle compacting refrigerant gas, another middle compacting refrigerant gas mist that exports out of low pressure refrigerant gas that described compressor air suction mouth suction chamber external heat exchanger comes out and shwoot charge air cooler.
2. ultralow temperature hot water thermal hydrophone according to claim 1, it is characterized in that: described round-the-clock throttle mechanism is by composing in parallel with heating throttle mechanism with heating throttle mechanism and winter summer, with heat second throttle element be composed in series by a magnetic valve and a summer with heating throttle mechanism described summer, and described winter is with heating throttle mechanism by being composed in series with heating the second throttle element in a magnetic valve and a winter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101110686A CN101482321B (en) | 2009-02-20 | 2009-02-20 | Ultra-low temperature heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101110686A CN101482321B (en) | 2009-02-20 | 2009-02-20 | Ultra-low temperature heat pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101482321A CN101482321A (en) | 2009-07-15 |
| CN101482321B true CN101482321B (en) | 2011-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101110686A Expired - Fee Related CN101482321B (en) | 2009-02-20 | 2009-02-20 | Ultra-low temperature heat pump water heater |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101799224B (en) * | 2010-02-25 | 2011-08-24 | 林贤华 | Low-temperature cooling, heating and water heating tri-purpose air-conditioning system |
| CN101782292B (en) * | 2010-02-25 | 2011-04-27 | 林贤华 | Three-purpose air conditioner system of ultra low temperature refrigeration, heating and hot water |
| CN102494375A (en) * | 2011-11-28 | 2012-06-13 | 林贤华 | Ultrahigh and low-temperature refrigerating, heating and water heating three-purpose air-conditioning system |
| CN103043737B (en) * | 2013-01-23 | 2013-11-27 | 林贤华 | Heat pump based all-weather sea water desalination system |
| CN103070656B (en) * | 2013-01-23 | 2015-01-07 | 林贤华 | Dish washing machine based on heating and drying of heat pump |
| CN106595126B (en) * | 2016-12-16 | 2019-12-20 | 广东美的暖通设备有限公司 | Outer unit control system, heat pump unit and control method thereof |
| CN106766318A (en) * | 2017-02-06 | 2017-05-31 | 刘勇 | There is the CO of various functions such as water heating ice making for weather of extremely trembling with fear2Heat pump |
| CN111947302A (en) * | 2020-08-28 | 2020-11-17 | 中原工学院 | A variable concentration direct heat heat pump water heater with flasher and its working method |
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2009
- 2009-02-20 CN CN2009101110686A patent/CN101482321B/en not_active Expired - Fee Related
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| CN101482321A (en) | 2009-07-15 |
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Granted publication date: 20110504 Termination date: 20120220 |