CN207262775U - A kind of energy saving defrosting system of air source heat pump - Google Patents
A kind of energy saving defrosting system of air source heat pump Download PDFInfo
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- CN207262775U CN207262775U CN201721173381.9U CN201721173381U CN207262775U CN 207262775 U CN207262775 U CN 207262775U CN 201721173381 U CN201721173381 U CN 201721173381U CN 207262775 U CN207262775 U CN 207262775U
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- defrost
- leel
- reservoir
- heat pump
- air source
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Abstract
The utility model belongs to refrigeration plant, more particularly to a kind of energy saving defrosting system of air source heat pump.A kind of defrosting system of air source heat pump, including three-in-one defrost qi leel reservoir, the side of three-in-one defrost qi leel reservoir connects the first pipeline, it is divided into two branches after first pipeline, refrigerant carries out the secondary generation supercooling of heat exchange and appropriate overheat in three-in-one defrost qi leel reservoir, increase the refrigerant enthalpy in circulation, when evaporation can perform to maximum refrigerating capacity, while ensure that no liquid is back in compressor and cause liquid compression；Increase sense of worth, lifting complete machine is beautiful, does not drip, mouldy smelly, pollution surrounding environment phenomenon；Gas and fluid path defrost at the same time, make air source heat pump at very low temperature also can normal operation, ensure that unit normal operation does not influence the efficiency of unit, defrosting effect is more thorough.
Description
Technical field
The utility model belongs to refrigeration plant, more particularly to a kind of energy saving defrosting system of air source heat pump.
Background technology
The north of country's encouragement at present carries out coal using air source heat pump heating and changes electric heating, reduces haze and non-renewable energy
Source consumes, and air source heat pump is quite crucial in low ambient temperature heat efficiency and defrost technology, and air source heat pump is in winter system
Thermal condition, when the temperature on heat source side heat exchanger surface is less than air dew point temperature and is less than 0 DEG C, heat exchanger surface may be tied
Frost, unit heat efficiency are low.At present in industry traditional defrost mode for four-way valve switch to refrigeration mode defrost, electric defrosting and
Hot gas bypass defrosting etc., but go out that defrosting effect is general, and thermal energy consumption is larger, utilization rate is low, causes cost excessive.
The content of the invention
Technical problem to be solved in the utility model is：In view of the deficienciess of the prior art, purpose is to provide one kind
The efficiency of unit is improved, ensures the defrosting system of the air source heat pump of unit.
First purpose of the utility model, is achieved using following technical scheme：A kind of defrost system of air source heat pump
System, including three-in-one defrost qi leel reservoir, the side of three-in-one defrost qi leel reservoir connect the first pipeline, the first pipeline it
After be divided into two branches, the first branch connects the first electric expansion valve and economizer, and the second branch is directly connected to economizer, three-in-one
The air entry, evaporator fin and condenser of compressor are also connected with defrost qi leel reservoir, the exhaust outlet connection of compressor is cold
Condenser, economizer are also connected with evaporator fin, the Liang Gen branches of three-in-one defrost qi leel reservoir be connected to economizer and
On the connecting pin a and connecting pin b of evaporator fin, compressor connection economizer.
Preferably：The side of the three-in-one defrost qi leel reservoir connects and is also equipped with ball on the first pipeline
Valve, filter and liquid-sighting glass.
Preferably：The three-in-one defrost qi leel reservoir is equipped with the connecting pin b pipelines being connected
Defrost solenoid valve.
Preferably：The three-in-one defrost qi leel reservoir is equipped with the connecting pin a pipelines being connected
Solenoid valve, also is provided with solenoid valve in the first branch.
Preferably：The second electric expansion valve is additionally provided between the economizer lower end and the connecting pin b.
Preferably：Energy-saving appliance cylinder is equipped with the three-in-one defrost qi leel reservoir.
Compared with prior art, the beneficial effects of the utility model are：High temperature system in three-in-one defrost qi leel reservoir
Cryogen liquefies the liquid refrigerant evaporation for not completely vaporizing evaporation while completely not liquefied overheated gas, high-temperature liquid state refrigeration
Agent is subcooled, and improves unit degree of supercooling and saves unit power consumption；This defrost mode avoids a large amount of without complete in outdoor finned heat exchanger
The liquid refrigerant of evaporation, which is back in three-in-one defrost qi leel reservoir, causes qi leel to assemble a large amount of liquid refrigerants, so as to lead
Compressor band liquid is caused to run flimsy problem；Refrigerant carries out that heat exchange is secondary produced in three-in-one defrost qi leel reservoir
Cooling and appropriate overheat, increase the refrigerant enthalpy in circulation, and when evaporation can perform to maximum refrigerating capacity, while ensure do not have
Liquid, which is back in compressor, causes liquid compression；Increase sense of worth, lifting complete machine is beautiful, does not drip, mouldy smelly, pollution
The phenomenon of surrounding environment；Gas and fluid path defrost at the same time, make air source heat pump at very low temperature also can normal operation, ensure
Unit normal operation does not influence the efficiency of unit, and defrosting effect is more thorough.
Brief description of the drawings
Fig. 1 is the structure diagram of the utility model.
Embodiment
Embodiment 1
A kind of defrosting system of air source heat pump, including three-in-one defrost qi leel reservoir 1, three-in-one defrost qi leel liquid storage
The side of device 1 connects the first pipeline 2, is divided into two branches, first branch 2-1 the first electric expansion valves of connection after the first pipeline 2
3-1 and economizer 4, the second branch 2-2 are directly connected to economizer 4, compressor 5 are also connected with three-in-one defrost qi leel reservoir 1
Air entry 5-1, evaporator fin 6 and condenser 7, the exhaust outlet 5-2 connections condenser 7 of compressor 5, economizer 4 is also connected with
Evaporator fin 6, the Liang Gen branches of three-in-one defrost qi leel reservoir 1 are connected to the company of economizer 4 and evaporator fin 6
Connect on the a4-1 and connecting pin b6-1 of end, compressor 5 connects economizer 4, the side connection of the three-in-one defrost qi leel reservoir 1
Ball valve 8, filter 9 and liquid-sighting glass 10, the three-in-one defrost qi leel reservoir 1 and the company are also equipped with first pipeline 2
Connect the pipeline that end b6-1 is connected and be equipped with defrost solenoid valve 11, the three-in-one defrost qi leel reservoir 1 and the connecting pin
The pipeline that a4-1 is connected is equipped with solenoid valve 12, also is provided with solenoid valve 12 on the first branch 2-1, under the economizer 4
The second electric expansion valve 3-2 is additionally provided between end and the connecting pin b6-1, is equipped with the three-in-one defrost qi leel reservoir 1
Energy-saving appliance cylinder 13.
During heating, refrigerant is discharged from the exhaust outlet 5-2 of compressor 5, into condenser 7 into liquid refrigerant, condenser 7
More than 80 degree of high-temperature liquid state refrigerant out enters in the energy-saving appliance cylinder 13 of three-in-one defrost qi leel reservoir 1, then from
The liquid storage side of three-in-one defrost qi leel reservoir 1 enters inside, enters economizer 4 from three-in-one defrost qi leel reservoir 1, from warp
The device 4 that helps enters 6 inside heat release defrosting of evaporator fin, is returned to from evaporator fin 6 in three-in-one defrost qi leel reservoir 1, from
The low temperature gas-liquid mixed refrigerant that evaporator fin 6 comes out enters in the energy-saving appliance cylinder 13 of three-in-one defrost qi leel reservoir 1
Heat exchange gasification is carried out, 13 inner side low temperature gas-liquid mixed refrigerant of energy-saving appliance cylinder passes through and the high-temperature liquid state refrigerant on the outside of cylinder
It is gasified totally after being exchanged heat by barrel, is finally returned to from air entry 5-1 in compressor 5.
Due to pressure differential, in the three-in-one defrost qi leel reservoir 1 in part the agent of liquid high temperature pass through the first electric expansion valve 3-1
And solenoid valve 12 cools down, the high temperature agent after cooling is flowed into economizer 4, is handed in the inside of economizer 4 and 20 DEG C of refrigerating fluid
Temperature is changed, is formed and is flow back into compressor 5 with 35 DEG C -40 DEG C of medium temperature gaseous refrigerant liquid.
Embodiment 2
When heating operations exterior temperature is less than 0 DEG C, frost is formed on evaporator fin 6, unit heat efficiency is low, is converted to
Defrost pattern, defrost solenoid valve 11 start, a small amount of height without total condensation at the three-in-one top of defrost qi leel reservoir 1
The entrance that warm high-pressure gaseous refrigerant introduces evaporator fin 6 carries out antifrost processing at initial stage, when the temperature of finned evaporator 6
Degree continues to decline when arriving less than -5 DEG C, and 80 DEG C of liquid high temperature agent is to connecting pin b6-1 streams in three-in-one defrost qi leel reservoir 1
Going out, 80 degree of high-temperature liquid state refrigerants are after the low temperature gas-liquid mixed refrigerant heat exchange with the inner side of energy-saving appliance cylinder 13, and 65
DEG C -70 DEG C of liquid high temperature agent and low-temperature refrigerant hybrid cooling in economizer 4, the temperature control of gas-liquid mixed is than exterior temperature
Low 10-15 DEG C is spent, is flowed into evaporator fin 6, the heat release defrost in evaporator fin 6, the liquid after defrost comes back to three
Unify inside defrost qi leel reservoir 1, reduce the temperature of three-in-one 6-8 DEG C of 1 inside of defrost qi leel reservoir, realize defrosting effect
Fruit.
Claims (6)
- A kind of 1. energy saving defrosting system of air source heat pump, it is characterised in that：It is three-in-one including three-in-one defrost qi leel reservoir The side of defrost qi leel reservoir connects the first pipeline, and two branches are divided into after the first pipeline, and the first branch connects the first electronics Expansion valve and economizer, the second branch are directly connected to economizer, the suction of compressor are also connected with three-in-one defrost qi leel reservoir Gas port, evaporator fin and condenser, the exhaust outlet connection condenser of compressor, economizer are also connected with evaporator fin, and three close The Liang Gen branches of one defrost qi leel reservoir are connected on the connecting pin a and connecting pin b of economizer and evaporator fin, pressure Contracting machine connects economizer.
- A kind of 2. energy saving defrosting system of air source heat pump according to claim 1, it is characterised in that：Three-in-oneization The side of white qi leel reservoir connects and is also equipped with ball valve, filter and liquid-sighting glass on the first pipeline.
- A kind of 3. energy saving defrosting system of air source heat pump according to claim 1, it is characterised in that：Three-in-oneization The pipeline that white qi leel reservoir is connected with the connecting pin b is equipped with defrost solenoid valve.
- A kind of 4. energy saving defrosting system of air source heat pump according to claim 1, it is characterised in that：Three-in-oneization The pipeline that white qi leel reservoir is connected with the connecting pin a is equipped with solenoid valve, and solenoid valve also is provided with the first branch.
- A kind of 5. energy saving defrosting system of air source heat pump according to claim 1, it is characterised in that：Under the economizer The second electric expansion valve is additionally provided between end and the connecting pin b.
- A kind of 6. energy saving defrosting system of air source heat pump according to claim 1, it is characterised in that：Three-in-oneization Energy-saving appliance cylinder is equipped with white qi leel reservoir.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173381.9U CN207262775U (en) | 2017-09-13 | 2017-09-13 | A kind of energy saving defrosting system of air source heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173381.9U CN207262775U (en) | 2017-09-13 | 2017-09-13 | A kind of energy saving defrosting system of air source heat pump |
Publications (1)
| Publication Number | Publication Date |
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| CN207262775U true CN207262775U (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721173381.9U Active CN207262775U (en) | 2017-09-13 | 2017-09-13 | A kind of energy saving defrosting system of air source heat pump |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046324A (en) * | 2022-01-24 | 2022-09-13 | 河南牧业经济学院 | Refrigerating system and circulating defrosting method of evaporator |
-
2017
- 2017-09-13 CN CN201721173381.9U patent/CN207262775U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115046324A (en) * | 2022-01-24 | 2022-09-13 | 河南牧业经济学院 | Refrigerating system and circulating defrosting method of evaporator |
| CN115046324B (en) * | 2022-01-24 | 2023-08-22 | 河南牧业经济学院 | Refrigeration system and evaporator circulating defrosting method |
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