CN208091016U - A kind of automatic defrosting heat pump unit - Google Patents
A kind of automatic defrosting heat pump unit Download PDFInfo
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- CN208091016U CN208091016U CN201820436696.6U CN201820436696U CN208091016U CN 208091016 U CN208091016 U CN 208091016U CN 201820436696 U CN201820436696 U CN 201820436696U CN 208091016 U CN208091016 U CN 208091016U
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- heat pump
- pump unit
- evaporator
- condenser
- defrosting heat
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Abstract
The utility model is related to technical field of heat pumps, specifically disclose a kind of automatic defrosting heat pump unit.The unit includes：Compressor；Condenser, the arrival end of side medium and the output end of compressor connect；Restricting element is connect with the outlet end of condenser side medium；Evaporator, arrival end are connect with restricting element, the input terminal connection of outlet end and compressor；Check valve is mounted on the connecting line of condenser and restricting element, and the refrigerant in condenser can be flowed into restricting element by check valve；At least one set of defrost coil pipe, connecting line of the arrival end between check valve and condenser are connect, piping connection of the outlet end between check valve and restricting element；Defrost coil pipe is used to melt the frost layer of evaporator surface.For the utility model by the way that defrost coil pipe is arranged, the waste heat after condenser can be made full use of to exchange heat gives evaporator defrost, need not expend additional energy, it can also be ensured that does not influence the normal work of heat pump unit during evaporator defrost.
Description
Technical field
The utility model is related to technical field of heat pumps more particularly to a kind of automatic defrosting heat pump units.
Background technology
Net for air-source heat pump units will appear evaporator plate pipe surface at low ambient temperatures, after long-play
The phenomenon that frosting, therefore the case where unit can monitor evaporimeter frosting in real time in the process of running, just when reaching a certain level
It needs to carry out defrost.
Electric heating system is usually set around evaporator in the prior art, is toasted by electric heating system, evaporator is made
Surface frost layer is melted, and since the frequency of defrost is higher, setting electric heating system will lead to a large amount of wastes of the energy；Also some is in heat
Four-way reversing valve is set in pump assembly, realizes that evaporator and condenser function exchange by four-way reversing valve, when needing defrost,
By operating four-way reversing valve, evaporator defrost is realized, during defrost, system can stop heat supply, and heat pump unit is caused to work
Efficiency reduces.
Therefore, there is an urgent need for a kind of automatic defrosting heat pump units to solve the above problems.
Utility model content
The purpose of this utility model is that：A kind of automatic defrosting heat pump unit is provided, to solve evaporator in the prior art
Energy waste problem existing for defrost and the ineffective problem of heat pump unit.
The utility model provides a kind of automatic defrosting heat pump unit, including：
Compressor；
Condenser, the arrival end of side medium are connect with the output end of the compressor；
Restricting element is connect with the outlet end of the condenser side medium；
Evaporator, arrival end are connect with the restricting element, and outlet end is connect with the input terminal of the compressor；
Check valve is mounted on the connecting line of the condenser and the restricting element, the refrigerant in the condenser
It can be flowed into the restricting element by the check valve；
At least one set of defrost coil pipe, connecting line of the arrival end between the check valve and the condenser connect
It connects, piping connection of the outlet end between the check valve and the restricting element；
The defrost coil pipe is close to the evaporator, and the frost layer for melting the evaporator surface.
Preferably, the defrost coil pipe is equipped with multiple fins.
Preferably, the arrival end of each defrost coil pipe or outlet end are equipped with solenoid valve.
Preferably, the solenoid valve is connected with the controller of the automatic defrosting heat pump unit.
Preferably, further including the temperature sensor being connect with the controller, the temperature sensor is for measuring institute
State the temperature of evaporator.
Preferably, further including wind turbine, the wind turbine is located at the top of the evaporator.
Preferably, the heat exchange side of the condenser is equipped with inlet and outlet, the water inlet and the water outlet
It is connect with extraneous thermal water source to be added.
Preferably, the restricting element is expansion valve or capillary.
Preferably, further include the liquid storage device being mounted on connecting line between the evaporator and the check valve and
Filter.
Preferably, further including the gas-liquid separation on the connecting line being mounted between the compressor and the evaporator
Device.
The beneficial effects of the utility model are：By the way that defrost coil pipe and the pipeline between condenser and restricting element is arranged
Connection, the waste heat after condenser can be made full use of to exchange heat give evaporator defrost, need not expend additional energy, can also protect
The normal work of heat pump unit is not influenced during card evaporator defrost；By the way that check valve is arranged, it is ensured that in defrost coil pipe
Refrigerant can only flow to restricting element without flowing back.
Description of the drawings
Fig. 1 is the structural schematic diagram of automatic defrosting heat pump unit in the utility model embodiment.
In figure：
1, babinet；2, compressor；3, condenser；301, water inlet；302, water outlet；4, liquid storage device；5, filter；6, single
To valve；7, restricting element；8, evaporator；9, gas-liquid separator；10, wind turbine；11, defrost coil pipe；12, solenoid valve.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
The present embodiment provides a kind of automatic defrosting heat pump units, as shown in Figure 1, the automatic defrosting heat pump unit includes pacifying
Compressor 2, condenser 3, liquid storage device 4, filter 5, check valve 6, restricting element 7, evaporator 8, gas-liquid point in babinet 1
From device 9, wind turbine 10 and at least one set of defrost coil pipe 11；The arrival end of 8 side medium of output end and evaporator of compressor 2 connects
It connects, the outlet end of 8 side medium of evaporator and liquid storage device 4 connect, and liquid storage device 4 and filter 5 connect, and filter 5 and check valve 6 connect
It connects, check valve 6 and restricting element 7 connect, and restricting element 7 is connected with the arrival end of evaporator 8, and the outlet end of evaporator 8 is gentle
Liquid/gas separator 9 connects, and gas-liquid separator 9 is connected with the input terminal of compressor 2, and wind turbine 10 is mounted on the surface of evaporator 8, uses
In the flowing for accelerating air in babinet 1, the heat exchange efficiency of evaporator 8 is improved, one end of the heat exchange of condenser 3 side is equipped with water inlet
301 and water outlet 302, the water inlet 301 and water outlet 302 connected with extraneous thermal water source to be added.
Connecting line of the arrival end of defrost coil pipe 11 between filter 5 and check valve 6 is connect, outlet end with list
Piping connection between valve 6 and restricting element 7, defrost coil pipe 11 are used to carry out defrost to evaporator 8.Condensed device 3 exchanges heat
Refrigerant afterwards flows into restricting element 7 through 11 part of defrost coil pipe through check valve 6, and another part is flowed into through defrost coil pipe 11 and throttled
Element 7, the refrigerant flowed into defrost coil pipe 11 still have higher temperature can be to the frost layer on 8 surface of evaporator
Frost is provided with a defrost coil pipe 11 and the bottom positioned at evaporator 8 in the present embodiment, naturally it is also possible to be arranged in evaporator 8
Both sides or top.
In the present embodiment, controller (attached to be not shown in figure), solenoid valve 12 and temperature are additionally provided in automatic defrosting heat pump unit
Sensor (attached to be not shown in figure) is spent, the arrival end of each defrost coil pipe 11 or outlet end are all provided with there are one solenoid valve 12,
Solenoid valve 12 is electrically connected with the controller, and temperature sensor is used to measure the temperature on 8 surface of evaporator and is electrically connected with the controller, and controls
Device processed is opened or is closed according to the Numerical Control solenoid valve 12 that temperature sensor returns, can be right when solenoid valve 12 is opened
Evaporator 8 defrosts.
Evaporator 8 uses finned evaporator, and restricting element 7 can be expansion valve or capillary, on defrost coil pipe 11
It is additionally provided with fin, for preferably discharging heat.
The present embodiment is by being arranged defrost coil pipe 11 and the piping connection between condenser 3 and restricting element 7, Ke Yichong
Divide the waste heat after exchanging heat using condenser 3 to give evaporator 8 defrost, additional energy need not be expended, it can also be ensured that evaporator 8
The normal work of heat pump unit is not influenced during defrost；By the way that check valve 6 is arranged, it is ensured that the refrigerant in defrost coil pipe 11
Restricting element 7 can only be flowed to without flowing back.
Obviously, above-described embodiment of the utility model is used for the purpose of clearly illustrating the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principle of the present invention etc., should be included in
Within the protection domain of the utility model claims.
Claims (10)
1. a kind of automatic defrosting heat pump unit, which is characterized in that including：
Compressor (2)；
Condenser (3), the arrival end of side medium are connect with the output end of the compressor (2)；
Restricting element (7) is connect with the outlet end of the condenser (3) side medium；
Evaporator (8), arrival end are connect with the restricting element (7), and outlet end and the input terminal of the compressor (2) connect
It connects；
Check valve (6) is mounted on the connecting line of the condenser (3) and the restricting element (7), the condenser (3)
In refrigerant can be flowed into the restricting element (7) by the check valve (6)；
At least one set of defrost coil pipe (11), connecting tube of the arrival end between the check valve (6) and the condenser (3)
Road connects, piping connection of the outlet end between the check valve (6) and the restricting element (7)；
The defrost coil pipe (11) is close to the evaporator (8), and the frost layer for melting the evaporator (8) surface.
2. automatic defrosting heat pump unit according to claim 1, which is characterized in that the defrost coil pipe (11) is equipped with more
A fin.
3. automatic defrosting heat pump unit according to claim 1, which is characterized in that each defrost coil pipe (11)
Arrival end or outlet end are equipped with solenoid valve (12).
4. automatic defrosting heat pump unit according to claim 3, which is characterized in that the solenoid valve (12) and described automatic
The controller of defrosting heat pump unit connects.
5. automatic defrosting heat pump unit according to claim 4, which is characterized in that the automatic defrosting heat pump unit is also wrapped
The temperature sensor being connect with the controller is included, the temperature sensor is used to measure the temperature of the evaporator (8).
6. automatic defrosting heat pump unit according to claim 1, which is characterized in that the automatic defrosting heat pump unit is also wrapped
Wind turbine (10) is included, the wind turbine (10) is located at the top of the evaporator (8).
7. automatic defrosting heat pump unit according to claim 1, which is characterized in that the heat exchange side of the condenser (3) is set
Have a water inlet (301) and water outlet (302), the water inlet (301) and the water outlet (302) with extraneous thermal water source to be added
Connection.
8. automatic defrosting heat pump unit according to claim 1, which is characterized in that the restricting element (7) is expansion valve
Or capillary.
9. automatic defrosting heat pump unit according to claim 1, which is characterized in that the automatic defrosting heat pump unit is also wrapped
Include liquid storage device (4) and filter (5) on the connecting line between the evaporator (8) and the check valve (6).
10. automatic defrosting heat pump unit according to claim 1, which is characterized in that further include being mounted on the compressor
(2) gas-liquid separator (9) on the connecting line between the evaporator (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820436696.6U CN208091016U (en) | 2018-03-29 | 2018-03-29 | A kind of automatic defrosting heat pump unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820436696.6U CN208091016U (en) | 2018-03-29 | 2018-03-29 | A kind of automatic defrosting heat pump unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208091016U true CN208091016U (en) | 2018-11-13 |
Family
ID=64056943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820436696.6U Active CN208091016U (en) | 2018-03-29 | 2018-03-29 | A kind of automatic defrosting heat pump unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208091016U (en) |
-
2018
- 2018-03-29 CN CN201820436696.6U patent/CN208091016U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 525000 Room 203, building a, Meihe Science Park, 68 Yongping Road, Qiling, Jiancun village, Yongning Street, Guangzhou City, Guangdong Province Patentee after: Guangzhou geente New Energy Technology Co.,Ltd. Address before: 525000 Room 203, building a, Meihe Science Park, 68 Yongping Road, Qiling, Jiancun village, Yongning Street, Guangzhou City, Guangdong Province Patentee before: GUANGZHOU GEENTE NEW ENERGY TECHNOLOGY Co.,Ltd. |