CN106016875A - Compressor waste heat recycling type hot water defrosting refrigeration system - Google Patents
Compressor waste heat recycling type hot water defrosting refrigeration system Download PDFInfo
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- CN106016875A CN106016875A CN201610552638.5A CN201610552638A CN106016875A CN 106016875 A CN106016875 A CN 106016875A CN 201610552638 A CN201610552638 A CN 201610552638A CN 106016875 A CN106016875 A CN 106016875A
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- defrosting
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
- F25B47/022—Defrosting cycles hot gas defrosting
- F25B47/025—Defrosting cycles hot gas defrosting by reversing the cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Defrosting Systems (AREA)
Abstract
The invention discloses a compressor waste heat recycling type hot water defrosting refrigeration system and aims at recycling compressor exhaust gas waste heat for the use of a defrosting system. High-temperature gas exhausted by a compressor carries out heat exchange with low-temperature water (in a heat preservation water tank) pressurized by a water pump in a gas-liquid heat exchanger, the temperature of the water rises, and the water returns to the heat preservation water tank again. When an evaporator needs defrosting, hot water flowing out of the heat preservation water tank is pressurized by the water pump and delivered to a defrosting sprinkling device, the hot water carries out heat exchange with a frost layer, and the water of which the temperature drops after defrosting drops into a water collecting tray and returns to the heat preservation water tank from an outlet of the water collecting tray. The refrigeration system carries out defrosting by utilizing the hot water obtained via the compressor exhaust gas heat, and compared with a traditional defrosting technology, saves energy.
Description
Technical field
The present invention relates to hot water defrosting's refrigeration system, specifically one utilizes compressor air-discharging waste heat to obtain
Hot water is for the refrigeration system of defrosting.
Background technology
Cryogenic temperature less than the refrigeration system of 0 DEG C, the evaporator air side of cooling air all can frosting, blocked up
Frosting can increase the heat transfer resistance of heat exchanger tube, cause evaporating temperature to reduce, refrigerant system capacity reduces,
COP reduces.Therefore, when evaporator surface frosting reaches certain thickness when, (frosting thickness should not result in
The heat transfer coefficient of vaporizer declines 10%) just should defrost.
In the refrigeration system using air cooled condenser, frequently with Defrost method be that hot gas defrosting, electricity melt
Frost, hot water defrosting.Hot gas defrosting is that the high-temperature gas entrance vaporizer that compressor is discharged carries out defrosting；Electricity melts
Frost is to utilize electric heater to carry out evaporator coil heating defrosting；Hot water defrosting is in evaporation heat water-spraying
Carrying out defrosting on device coil pipe, during summer, hot water is readily available, and then needs winter heating to obtain.These are several removes
Frost method is required for consuming big energy, increases refrigeration system energy consumption.
Conventional refrigeration defrosting power consumption is big, and performance driving economy is low, it is therefore necessary to design and exploitation are a kind of low
The defrosting and refrigeration system of energy consumption.
Summary of the invention
Conventional refrigeration is transformed by the present invention, overcomes the deficiencies in the prior art, it is provided that a kind of
Heat of compressor recovery type hot water defrosting's refrigeration system.
Heat of compressor recovery type hot water defrosting's refrigeration system of the present invention, is achieved through the following technical solutions:
The outlet side of described refrigeration compressor 1 respectively with entrance point and the gas-liquid heat exchanger 5 of electromagnetic valve 1
Entrance point be connected, the port of export of described electromagnetic valve 1 and the gas outlet end of gas-liquid heat exchanger 5 with
The entrance point of air cooled condenser 2 is connected, the port of export of described air cooled condenser 2 and expansion valve 3
Entrance point is connected, and the port of export of described expansion valve 3 is connected with the entrance point of vaporizer 4, described evaporation
The port of export of device 4 is connected with the inlet side of compressor 1；The liquid outlet end of described gas-liquid heat exchanger 5
It is connected with the entrance point of described attemperater 7, the port of export of described attemperater 7 and the import of water pump 8
End is connected, and the port of export of described water pump 8 is connected with the entrance point of electromagnetic valve 29, described electromagnetic valve two
The port of export of 9 is connected with the liquid-inlet end of gas-liquid heat exchanger 5；The port of export of described water pump 8 with remove
Frost spray equipment 11 is connected, and described drip tray 12 is connected with the entrance point of attemperater 7.
Described attemperater 7 is provided with described temperature controller 13, for making attemperater defrosting coolant-temperature gage
Maintaining 28 DEG C-30 DEG C, design temperature controller lower limit is 28 DEG C, and design temperature controller higher limit is 30
℃.Attemperater temperature drops to 28 DEG C, and described water pump 8 starts, described electromagnetic valve 9 energising is opened, described
Electromagnetic valve 6 power-off is closed；Attemperater temperature is raised to 30 DEG C, and described water pump 8 cuts out, described electromagnetic valve 9
Power-off is closed, described electromagnetic valve 6 energising is opened.
This refrigeration system has the advantages that
Conventional refrigeration is transformed by the present invention, increases a heat exchanger in compressor air-discharging outlet, makes
The high-temperature vapour that compressor is discharged and cold water carry out heat exchange, and aerofluxus exothermic temperature reduces, then enter condenser continuation
Cooling condensation；Cold water endothermic temperature raises, and obtains hot water for defrosting.This refrigeration system utilizes compressor to arrange
The hot water that gas heat obtains defrosts, and compares tradition Defrost technology, saves the energy.
Accompanying drawing explanation
Fig. 1 is principle of the invention schematic diagram.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.Should be appreciated that herein
Described specific embodiment, only in order to explain the present invention, is not intended to limit the present invention.
As it is shown in figure 1, the outlet side of refrigeration compressor 1 is warm with the entrance point of electromagnetic valve 1 and gas-liquid respectively
The entrance point of exchanger 5 is connected, the port of export of described electromagnetic valve 1 and the gas of gas-liquid heat exchanger 5
The port of export is connected with the entrance point of air cooled condenser 2, and the port of export of described air cooled condenser 2 is with swollen
The entrance point of swollen valve 3 is connected, and the port of export of described expansion valve 3 is connected with the entrance point of vaporizer 4,
The port of export of described vaporizer 4 is connected with the inlet side of compressor 1；The liquid of described gas-liquid heat exchanger 5
The body port of export is connected with the entrance point of described attemperater 7, the port of export of described attemperater 7 and water pump
The entrance point of 8 is connected, and the port of export of described water pump 8 is connected with the entrance point of electromagnetic valve 29, described
The port of export of electromagnetic valve 29 is connected with the liquid-inlet end of gas-liquid heat exchanger 5；Going out of described water pump 8
Mouth end is connected with defrosting spray equipment 11, and described drip tray 12 is connected with the entrance point of attemperater 7.
Described attemperater 7 is provided with described temperature controller 13, for making attemperater defrosting coolant-temperature gage
Maintaining 28 DEG C-30 DEG C, design temperature controller lower limit is 28 DEG C, and design temperature controller higher limit is 30
℃.Attemperater temperature drops to 28 DEG C, and described water pump 8 starts, described electromagnetic valve 9 energising is opened, described
Electromagnetic valve 6 power-off is closed；Attemperater temperature is raised to 30 DEG C, and described water pump 8 cuts out, described electromagnetic valve 9
Power-off is closed, described electromagnetic valve 6 energising is opened.
When vaporizer needs defrosting, described water pump 8 starts, described compressor 1 is shut down, described electromagnetic valve 9
Power-off is closed, described electromagnetic valve 6 power-off is closed, and the energising of described electromagnetic valve 10 is opened.
Attemperater should have enough volumes, the water at the end of moisture storage capacity please guarantee defrosting, within attemperater
Temperature is not less than 20 DEG C.
The operation principle of heat of compressor recovery type hot water defrosting's refrigeration system is as follows: attemperater temperature declines
To 28 DEG C, water pump 8 starts, attemperater 7 water out, water pump 8 pressurize, enter through electromagnetic valve 9
The liquid-inlet end of gas-liquid heat exchanger 5；The gas refrigerant of the High Temperature High Pressure that compressor 1 is discharged enters gas
The gas inlet end of liquid heat exchanger 5；In gas-liquid heat exchanger 5, water and high temperature and high pressure gas carry out heat
Exchange, water endothermic temperature raises, returns in attemperater 7；High temperature and high pressure gas cools, and enters wind
Air-cooled condenser 2 is condensed into the liquid refrigerant of the middle temperature of high pressure, subsequently into expansion valve 3 reducing pressure by regulating flow
Becoming the gas-liquid two-phase cold-producing medium of low-temp low-pressure, gas-liquid two-phase cold-producing medium enters vaporizer 4, and evaporation endothermic becomes
Become low temperature low pressure gas, return the suction side of compressor 1.
Attemperater temperature rises to 30 DEG C, compressor 1 gas refrigerant of the High Temperature High Pressure discharged is through electricity
Magnet valve 6 enters air cooled condenser 2 and is condensed into the liquid refrigerant of the middle temperature of high pressure, subsequently into expansion
Valve 3 reducing pressure by regulating flow becomes the gas-liquid two-phase cold-producing medium of low-temp low-pressure, and gas-liquid two-phase cold-producing medium enters vaporizer 4,
Evaporation endothermic becomes low temperature low pressure gas, returns the suction side of compressor 1.
When vaporizer needs defrosting, water pump 8 starts, and the water of attemperater is pressurizeed by water pump 8, enters defrosting
Spray equipment 11, spray carries out heat exchange with frost layer on evaporator coil, and the coolant-temperature gage after defrosting reduces,
Fall in drip tray 12, the outlet of drip tray 12 return in attemperater 7.
Claims (2)
1. heat of compressor recovery type hot water defrosting's refrigeration system, it is characterised in that described refrigeration pressure
The outlet side of contracting machine (1) respectively with entrance point and the described gas-liquid heat exchanger (5) of electromagnetic valve one (6)
Entrance point be connected, the port of export of described electromagnetic valve one (6) and the gas of gas-liquid heat exchanger (5)
The port of export is connected with the entrance point of air cooled condenser (2), going out of described air cooled condenser (2)
Mouth end is connected with the entrance point of expansion valve (3), the port of export of described expansion valve (3) and vaporizer (4)
Entrance point be connected, the port of export of described vaporizer (4) is connected with the inlet side of compressor (1)；；
The liquid outlet end of described gas-liquid heat exchanger (5) is connected with the entrance point of attemperater (7),
The port of export of described attemperater (7) is connected with the entrance point of water pump (8), described water pump (8)
The port of export is connected with the entrance point of electromagnetic valve two (9), the port of export of described electromagnetic valve two (9) and gas
The liquid-inlet end of liquid heat exchanger (5) is connected；
The port of export of described water pump (8) is connected with described defrosting spray equipment (11), described drip tray
(12) entrance point with attemperater (7) is connected.
Heat of compressor recovery type hot water defrosting's refrigeration system the most according to claim 1, its feature
It is, described attemperater (7) is provided with temperature controller (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552638.5A CN106016875A (en) | 2016-07-14 | 2016-07-14 | Compressor waste heat recycling type hot water defrosting refrigeration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610552638.5A CN106016875A (en) | 2016-07-14 | 2016-07-14 | Compressor waste heat recycling type hot water defrosting refrigeration system |
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| CN106016875A true CN106016875A (en) | 2016-10-12 |
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| CN201610552638.5A Pending CN106016875A (en) | 2016-07-14 | 2016-07-14 | Compressor waste heat recycling type hot water defrosting refrigeration system |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352581A (en) * | 2016-10-27 | 2017-01-25 | 天津商业大学 | Cascade refrigeration system with functions of cooling exhaust, recovering exhaust heat and defrosting by utilizing heat carrier |
| CN106545926A (en) * | 2017-01-10 | 2017-03-29 | 美的集团武汉制冷设备有限公司 | Air-conditioner |
| CN108266863A (en) * | 2017-12-29 | 2018-07-10 | 广东高而美制冷设备有限公司 | The control method that a kind of defrost exhaust-heat absorption recycles |
| CN108361883A (en) * | 2018-01-08 | 2018-08-03 | 东北电力大学 | A kind of hot Pump air conditioner with the thermal storage defrosting humidifier based on self defrosting water |
| CN108844265A (en) * | 2018-08-27 | 2018-11-20 | 天津商业大学 | A kind of energy-saving and water-saving type heat water-spraying removes defrosting system |
| CN108954996A (en) * | 2018-09-30 | 2018-12-07 | 珠海格力电器股份有限公司 | Oil separation device and heat exchange system with same |
| CN108974315A (en) * | 2018-08-01 | 2018-12-11 | 广州中臣碧阳船舶科技有限公司 | A kind of seawater defrosting system peculiar to vessel |
| CN112346493A (en) * | 2020-10-29 | 2021-02-09 | 北京京仪自动化装备技术有限公司 | Temperature control equipment and method |
| WO2021245791A1 (en) * | 2020-06-02 | 2021-12-09 | 三菱電機株式会社 | Cooling device |
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| CN201074934Y (en) * | 2007-08-01 | 2008-06-18 | 安徽省星科工贸有限公司 | Air source heat pump water heating machine equipped with defrosting device |
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| CN105299987A (en) * | 2015-10-13 | 2016-02-03 | 东南大学 | Air source heat pump sprinkling defrosting device based on super-hydrophobic finned tube exchanger |
| CN105716355A (en) * | 2016-02-03 | 2016-06-29 | 西安交通大学 | Auxiliary defrosting device and method for air cooling refrigerator |
| CN206019098U (en) * | 2016-07-14 | 2017-03-15 | 天津商业大学 | Heat of compressor recovery type hot water defrosting's refrigeration system |
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Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005127640A (en) * | 2003-10-24 | 2005-05-19 | Toshiba Kyaria Kk | Heat pump water heater |
| CN201074934Y (en) * | 2007-08-01 | 2008-06-18 | 安徽省星科工贸有限公司 | Air source heat pump water heating machine equipped with defrosting device |
| CN201181094Y (en) * | 2008-02-03 | 2009-01-14 | 珠海天济能源科技有限公司 | Air source heat pump hot water units |
| CN201508094U (en) * | 2009-08-12 | 2010-06-16 | 四川澳尔空调冷冻设备有限公司 | Energy-saving hot water defrosting device for low-temperature cold storages |
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| CN105299987A (en) * | 2015-10-13 | 2016-02-03 | 东南大学 | Air source heat pump sprinkling defrosting device based on super-hydrophobic finned tube exchanger |
| CN105716355A (en) * | 2016-02-03 | 2016-06-29 | 西安交通大学 | Auxiliary defrosting device and method for air cooling refrigerator |
| CN206019098U (en) * | 2016-07-14 | 2017-03-15 | 天津商业大学 | Heat of compressor recovery type hot water defrosting's refrigeration system |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106352581A (en) * | 2016-10-27 | 2017-01-25 | 天津商业大学 | Cascade refrigeration system with functions of cooling exhaust, recovering exhaust heat and defrosting by utilizing heat carrier |
| CN106545926A (en) * | 2017-01-10 | 2017-03-29 | 美的集团武汉制冷设备有限公司 | Air-conditioner |
| CN108266863A (en) * | 2017-12-29 | 2018-07-10 | 广东高而美制冷设备有限公司 | The control method that a kind of defrost exhaust-heat absorption recycles |
| CN108266863B (en) * | 2017-12-29 | 2020-08-28 | 广东高而美制冷设备有限公司 | Defrosting waste heat absorption and reuse control method |
| CN108361883A (en) * | 2018-01-08 | 2018-08-03 | 东北电力大学 | A kind of hot Pump air conditioner with the thermal storage defrosting humidifier based on self defrosting water |
| CN108974315A (en) * | 2018-08-01 | 2018-12-11 | 广州中臣碧阳船舶科技有限公司 | A kind of seawater defrosting system peculiar to vessel |
| CN108844265A (en) * | 2018-08-27 | 2018-11-20 | 天津商业大学 | A kind of energy-saving and water-saving type heat water-spraying removes defrosting system |
| CN108954996A (en) * | 2018-09-30 | 2018-12-07 | 珠海格力电器股份有限公司 | Oil separation device and heat exchange system with same |
| WO2021245791A1 (en) * | 2020-06-02 | 2021-12-09 | 三菱電機株式会社 | Cooling device |
| CN112346493A (en) * | 2020-10-29 | 2021-02-09 | 北京京仪自动化装备技术有限公司 | Temperature control equipment and method |
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Application publication date: 20161012 |