CN102128529A - Split air-source heat pump water heater - Google Patents
Split air-source heat pump water heater Download PDFInfo
- Publication number
- CN102128529A CN102128529A CN201110079311.8A CN201110079311A CN102128529A CN 102128529 A CN102128529 A CN 102128529A CN 201110079311 A CN201110079311 A CN 201110079311A CN 102128529 A CN102128529 A CN 102128529A
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- Prior art keywords
- pressure
- compressor
- heat pump
- source heat
- hot water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 238000005057 refrigeration Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 7
- 239000003643 water by type Substances 0.000 claims 1
- 238000001704 evaporation Methods 0.000 abstract description 14
- 239000003507 refrigerant Substances 0.000 abstract description 7
- 230000008020 evaporation Effects 0.000 abstract description 6
- 230000004224 protection Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 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 invention discloses a split air-source heat pump water heater, comprising a refrigerating system, a pressure relieving device and a pressure switch, wherein the refrigerating system consists of a compressor, a condenser, a throttling part and an evaporator; a refrigerating working medium is circulated in the refrigerating system; the condenser is arranged in a second working medium; the evaporator is provided with a fan; one end of the pressure relieving device is connected with a high pressure side of the refrigerating system and the other end of the same is connected with a low pressure side of the refrigerating system; and the pressure switch is arranged on an air return pipeline of the compressor and connected with a controller of the fan. When the exhaust pressure of the compressor is higher, the pressure relieving device is started and the refrigerant at the high pressure side is discharged to the low pressure side, so that exhaust temperature and exhaust pressure of the compressor are reduced; when evaporation pressure of the system is lower, an outdoor fan is controlled by the pressure switch to rotate at a high-speed gear, so that evaporation temperature and evaporation pressure of the evaporator are raised; and the system is prevented from being frequently defrosted and the hot water yield is increased.
Description
Technical field
Patent of the present invention relates to a kind of heat pump water-heating machine, relates to a kind of split type air-source heat pump hot water specifically.
Background technology
Air-source heat pump hot water is according to contrary Carnot cycle principle, unit is driving force with the small amount of electrical energy, with the cold-producing medium is carrier, absorb the low grade heat energy (5-43 ℃) that is difficult to utilize in air or the natural environment continuously, be converted into high-grade heat energy (80 ℃), realize the transfer of low temperature heat energy to high temperature heat; Again high-grade heat energy is discharged into and produces hot water (55 ℃ are up to 65 ℃) in the water, flow to the user by the hot water supply line and satisfy hot water supply, heating demand.
Split type air-source heat pump hot water has that energy efficiency height, operating cost are low, environmental protection, security of operation, need not on duty, be not subjected to the influence of ambient weather, advantage such as all can use throughout the year, its at home the market demand constantly enlarge.But, in the prior art, because the particularity of heat-pump hot-water unit operating condition, there are some hidden danger defectives in existing split type air-source heat pump hot water than operation under the bad working environments: when the summer environment temperature is higher, the product evaporating temperature is higher, causes press pressure at expulsion and delivery temperature to surpass press permission working range, and the pressure at expulsion of system, delivery temperature can be shut down in frequent protection, influence normally heats the water yield, also can be influential to the ordinary life of press; The outdoor fan motor rotating speed is non-adjustable, and when the winter environment temperature was low, evaporimeter is frosting very easily, and system can frequently defrost, and influences hot water output.
Summary of the invention
The object of the invention is to provide a kind of split type air-source heat pump hot water, makes hot water machine maintain enough water yields that heats than stable under the bad working environments, normal operation, and the hot water function is suitable under more broad weather conditions, and the scope of application is wider.
The technical solution adopted in the present invention is: split type air-source heat pump hot water, comprise the refrigeration system that constitutes by compressor, condenser, throttle part, evaporimeter, the refrigeration working medium that in described refrigeration system, circulates, described condenser places in second working medium, blower fan is set on evaporimeter, also comprise discharge degree device and pressure switch, described discharge degree device one end connects the high-pressure side of refrigeration system, the other end connects the low-pressure side of refrigeration system, described pressure switch is arranged on the return line of compressor, and described pressure switch connects the controller of blower fan.
In the above-mentioned split type air-source heat pump hot water, also comprise cross valve, first valve port of described cross valve connects the blast pipe of compressor, and second valve port of cross valve connects evaporimeter, the 3rd valve port of cross valve connects the return line of compressor, and the 4th valve port of cross valve connects condenser.
In the above-mentioned split type air-source heat pump hot water, the return line of described compressor is provided with liquid reservoir.
In the above-mentioned split type air-source heat pump hot water, described second working medium is water.
The invention has the beneficial effects as follows:
1) the split type air-source heat pump hot water of the present invention, higher in environment temperature, when operating mode is abominable, when Compressor Discharge Pressure was higher, the discharge degree device was opened, and the high-pressure side refrigerant is unloaded to low-pressure side, thereby reduces press delivery temperature and pressure at expulsion; When low pressure is higher, turn round with low or first gear by the outer blower fans of three pressure switches control, reduce system's operating pressure, avoid frequent protection to shut down, complete machine is worked more reliable and stablely, prolongation press service life.
2) the split type air-source heat pump hot water of the present invention, when the winter environment temperature is low, when evaporating pressure is low, outdoor fan turns round with top gear by pressure switch control, improve evaporator evaporation temperature and evaporating pressure with this, postpone evaporimeter frosting speed, avoid system frequently to defrost, improve hot water output.
Description of drawings
Fig. 1 is the refrigerant system configurations schematic diagram of existing split type air-source heat pump hot water;
Fig. 2 is the refrigerant system configurations schematic diagram of split type air-source heat pump hot water of the present invention.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the refrigerant system configurations schematic diagram of existing split type air-source heat pump hot water, and as shown in Figure 1, compressor connects cross valve and liquid reservoir, and other three valve ports of cross valve connect the inlet side of evaporimeter and liquid reservoir respectively.Blower fan is set on evaporimeter, and condenser places in the water tank, makes water temperature obtain raising in heat transferred water.At present, when torridity summer, the evaporating temperature of hot water machine is higher, and high-voltage switch gear 2 frequent protections are shut down, and influence normally heats the water yield.And in the winter of cold, evaporimeter very easily frosting again causes system frequently to defrost, and same influence heats the water yield.
Fig. 2 illustrates the refrigerant system configurations of split type air-source heat pump hot water of the present invention, the refrigeration system that constitutes by compressor 1, condenser 4, throttle part 6, evaporimeter 7, cross valve 3, liquid reservoir 10, condenser 4 is immersed in the interior heat exchange of water of water tank, blower fan 8 is set on the evaporimeter 7, discharge degree device 5 one ends connect the high-pressure side (before the throttle part) of refrigeration system, the other end connects the low-pressure side (press muffler place) of refrigeration system, and pressure switch 9 is arranged on the return line of compressor and connects the controller of blower fan 8.
When system heated water, the flow direction of refrigeration working medium was: compressor 1 exhaust-cross valve 3-condenser 4-throttle part 6-evaporimeter 7-cross valve 3-liquid reservoir 10-compressor 1 return-air; When system defrosted, cross valve 3 powered on, and refrigerant flow direction is: compressor 1 exhaust-cross valve 3-evaporimeter 7-throttle part 6-condenser 4-liquid reservoir 10-compressor 1 return-air.The unloading setting pressure of discharge degree device 5 is 2.2Mpa; opening of valves when pressure is higher than 2.2Mpa; valve cuts out when pressure is lower than 2.2Mpa; thereby because of the press pressure at expulsion is too high high-voltage switch gear 2 frequent protections are shut down when avoiding operating mode abominable; complete machine is worked more reliable and stablely, prolong press service life.Pressure switch 9 is selected three pressure switches for use, is contained in compressor return air pipeline place, and the lead of its end is connected with the controller of blower fan 8, thereby varying in size of the back pressure actual load of adaptive system decides the blower fan wind speed with different gear operations.The operation principle of pressure switch is the contact by the air film pull switch in the switch, and when system's back pressure was in different range of pressure values, switch was connected the different gear of blower fan respectively.When hot water machine normally heated water, refrigeration system back pressure and evaporating pressure were basic identical, when outdoor environment temperature is low, evaporating temperature and evaporating pressure are lower in the evaporimeter 7, evaporimeter 7 easily frostings in system's defrost process, will influence the normal heat production water yield.When back pressure was lower than 0.3Mpa, outdoor fan turned round with top gear, improved evaporimeter heat exchange amount, improve evaporator evaporation temperature and evaporating pressure with this, retard evaporation device frosting speed prolongs system's defrosting cycle, avoid system frequently to defrost, improve hot water output.When back pressure was higher than 0.55Mpa, outdoor fan turned round with low or first gear.The present invention utilizes pressure switch to guarantee the speed of blower fan running, reduces consumed power of whole machine, improves systematic energy efficiency ratio.
Claims (4)
1. split type air-source heat pump hot water, comprise by compressor (1), condenser (4), throttle part (6), the refrigeration system that evaporimeter (7) constitutes, the refrigeration working medium that in described refrigeration system, circulates, described condenser (4) places in second working medium, blower fan (8) is set on evaporimeter (7), it is characterized in that: also comprise discharge degree device (5) and pressure switch (9), described discharge degree device (5) one ends connect the high-pressure side of refrigeration system, the other end connects the low-pressure side of refrigeration system, described pressure switch (9) is arranged on the return line of compressor, and described pressure switch (9) connects the controller of blower fan (8).
2. split type air-source heat pump hot water according to claim 1, it is characterized in that: also comprise cross valve (3), first valve port (31) of described cross valve connects the blast pipe of compressor, second valve port (32) of cross valve connects evaporimeter (7), the 3rd valve port (33) of cross valve connects the return line of compressor, the 4th valve port (34) the junction chamber condenser (4) of cross valve.
3. split type air-source heat pump hot water according to claim 2 is characterized in that: be provided with liquid reservoir on the return line of described compressor.
4. according to claim 2 or 3 described split type air-source heat pump hot waters, it is characterized in that: described second working medium is water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110079311.8A CN102128529A (en) | 2011-03-31 | 2011-03-31 | Split air-source heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110079311.8A CN102128529A (en) | 2011-03-31 | 2011-03-31 | Split air-source heat pump water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102128529A true CN102128529A (en) | 2011-07-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110079311.8A Pending CN102128529A (en) | 2011-03-31 | 2011-03-31 | Split air-source heat pump water heater |
Country Status (1)
| Country | Link |
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| CN (1) | CN102128529A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679650A (en) * | 2012-05-31 | 2012-09-19 | 东南大学 | Safety control device and method for heat pump evaporation pressure |
| CN102927685A (en) * | 2012-11-28 | 2013-02-13 | 北京天一众合环境工程有限公司 | Waste sewage heat recycling device |
| CN104456968A (en) * | 2014-11-06 | 2015-03-25 | 广东芬尼克兹节能设备有限公司 | Intelligent draught fan unloading, adjusting and controlling method |
| CN107388627A (en) * | 2017-08-31 | 2017-11-24 | 王全龄 | A kind of novel energy resource tower heat pump |
| CN110542226A (en) * | 2019-08-30 | 2019-12-06 | 郑州之铂智能科技有限公司 | Control system for widening use range of air-cooled fixed-frequency heat pump unit |
| CN111219852A (en) * | 2020-01-10 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | Defrosting method and device, air conditioner and storage medium |
| CN112146227A (en) * | 2020-08-31 | 2020-12-29 | 珠海格力电器股份有限公司 | Pressure detection switch, air conditioner control method and device, air conditioner and storage medium |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2486207A1 (en) * | 1980-07-07 | 1982-01-08 | Dunham Bush Inc | Air source heat pump system for heating buildings - has refrigerant charged bulb within air flow passing over outdoor coil for sensing ambient temp. |
| CN1844807A (en) * | 2006-04-19 | 2006-10-11 | 东南大学 | Defrosting apparatus and method for air-source heat pump water chiller-heater unit |
| CN2837745Y (en) * | 2005-09-10 | 2006-11-15 | 海尔集团公司 | Air conditioner with decompression protection mechanism |
| CN2884034Y (en) * | 2006-01-09 | 2007-03-28 | 江苏天舒电器有限公司 | Split, mobile, air-source heat-pump type water heating apparatus |
| CN101220983A (en) * | 2007-01-09 | 2008-07-16 | 葛建民 | Forced heat-exchanging method of air source heat pump hot water units |
| CN201355127Y (en) * | 2009-01-14 | 2009-12-02 | 中山华帝燃具股份有限公司 | Gas water heater fan rotation speed change-over switch |
-
2011
- 2011-03-31 CN CN201110079311.8A patent/CN102128529A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2486207A1 (en) * | 1980-07-07 | 1982-01-08 | Dunham Bush Inc | Air source heat pump system for heating buildings - has refrigerant charged bulb within air flow passing over outdoor coil for sensing ambient temp. |
| CN2837745Y (en) * | 2005-09-10 | 2006-11-15 | 海尔集团公司 | Air conditioner with decompression protection mechanism |
| CN2884034Y (en) * | 2006-01-09 | 2007-03-28 | 江苏天舒电器有限公司 | Split, mobile, air-source heat-pump type water heating apparatus |
| CN1844807A (en) * | 2006-04-19 | 2006-10-11 | 东南大学 | Defrosting apparatus and method for air-source heat pump water chiller-heater unit |
| CN101220983A (en) * | 2007-01-09 | 2008-07-16 | 葛建民 | Forced heat-exchanging method of air source heat pump hot water units |
| CN201355127Y (en) * | 2009-01-14 | 2009-12-02 | 中山华帝燃具股份有限公司 | Gas water heater fan rotation speed change-over switch |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102679650A (en) * | 2012-05-31 | 2012-09-19 | 东南大学 | Safety control device and method for heat pump evaporation pressure |
| CN102927685A (en) * | 2012-11-28 | 2013-02-13 | 北京天一众合环境工程有限公司 | Waste sewage heat recycling device |
| CN104456968A (en) * | 2014-11-06 | 2015-03-25 | 广东芬尼克兹节能设备有限公司 | Intelligent draught fan unloading, adjusting and controlling method |
| CN104456968B (en) * | 2014-11-06 | 2017-08-15 | 广东芬尼克兹节能设备有限公司 | A kind of intelligent blower fan unloading regulation and control method |
| CN107388627A (en) * | 2017-08-31 | 2017-11-24 | 王全龄 | A kind of novel energy resource tower heat pump |
| CN107388627B (en) * | 2017-08-31 | 2023-04-18 | 王全龄 | Novel energy tower heat pump system |
| CN110542226A (en) * | 2019-08-30 | 2019-12-06 | 郑州之铂智能科技有限公司 | Control system for widening use range of air-cooled fixed-frequency heat pump unit |
| CN111219852A (en) * | 2020-01-10 | 2020-06-02 | 宁波奥克斯电气股份有限公司 | Defrosting method and device, air conditioner and storage medium |
| CN112146227A (en) * | 2020-08-31 | 2020-12-29 | 珠海格力电器股份有限公司 | Pressure detection switch, air conditioner control method and device, air conditioner and storage medium |
| CN112146227B (en) * | 2020-08-31 | 2022-04-12 | 珠海格力电器股份有限公司 | Pressure detection switch, air conditioner control method and device, air conditioner and storage medium |
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Application publication date: 20110720 |