CN206113408U - Can change air source heat pump unit of frost - Google Patents
Can change air source heat pump unit of frost Download PDFInfo
- Publication number
- CN206113408U CN206113408U CN201621072916.9U CN201621072916U CN206113408U CN 206113408 U CN206113408 U CN 206113408U CN 201621072916 U CN201621072916 U CN 201621072916U CN 206113408 U CN206113408 U CN 206113408U
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- heat exchanger
- check valve
- valve
- finned heat
- pipeline
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Abstract
The utility model discloses a can change air source heat pump unit of frost belongs to heat pump equipment technical field, including compressor, cross valve, finned heat exchanger, solenoid valve, first check valve, second check valve, third check valve, fourth check valve, thermostatic expansion valve, heat exchanger and vapour and liquid separator, the refrigerant is equipped with in finned heat exchanger and the heat exchanger, of the installing frost pipe in the finned heat exchanger, change white union coupling of the having frost input pipeline and change white output pipeline, the solenoid valve is installed on changing white output pipeline, finned heat exchanger is connected with finned heat exchanger input pipeline and finned heat exchanger output pipeline, the finned heat exchanger surface is provided with a plurality of fin. The utility model discloses can solve the problem among the prior art, when making the air source heat pump unit change the frost under low temperature condition, it is effectual to change the frost, and the finned heat exchanger bottom does not freeze, high with the hot exchange ratio of air.
Description
Technical field
This utility model belongs to heat-pump apparatus technical field, and in particular to it is a kind of can defrost net for air-source heat pump units.
Background technology
Net for air-source heat pump units constitutes closed system by vaporizer, condenser, compressor, the big critical piece of expansion valve four,
Appropriate cold-producing medium is filled with it.Unit operation ultimate principle foundation is inverse card circulation theory：Liquid refrigerant is steaming first
Send out the heat in device in absorption air and evaporate to form steam (vaporization), the latent heat of vaporization is and reclaims heat, then compressed
Machine is compressed into high temperature and high pressure gas, liquid (liquefaction) is condensed into in condenser, after the expanded valve decompressional expansion of liquid refrigerant
Come back in expansion valve, absorb heat of vaporization and complete a circulation, and so on, the thermal output for constantly absorbing cold temperature source is arrived
In the medium for being heated, predetermined temperature is directly reached.Finned heat exchanger is in air-cooled heat pump, air-source heat pump hot water, domestic
As source heat exchanger in the air conditioning systems such as air-conditioning, VRV, winter temperature be less than certain value when all can frosting, in freezer room
When air-cooler is as load side heat exchanger, interior also can frosting less than during certain value.Frosting initial stage, frost layer is very thin, increases indirectly
The contact area of fin and air, heat exchange is strengthened.With the thickening of frost layer, the heat exchange between air and fin is hindered, changed
Heat weakens, and is now accomplished by defrosting process.
At present the defrost technology employed in net for air-source heat pump units mainly has three kinds：By the reverse defrost of cross valve, steam
Tonghua is white, electrical heating defrost, but they are largely realized by sacrificing Energy Efficiency Ratio.In a word, defrost and guarantor are taken into account
Card efficiency is the technical barrier that current air source heat pump enterprise is badly in need of solving.
Utility model content
This utility model purpose is：Aim to provide it is a kind of can defrost net for air-source heat pump units, to solve prior art
In problem, make net for air-source heat pump units under cryogenic defrost when, defrost effect is good, and finned heat exchanger bottom does not freeze,
It is high with the rate of heat exchange of air.
To realize above-mentioned technical purpose, the technical solution adopted in the utility model is as follows：
It is a kind of can defrost net for air-source heat pump units, it is including compressor, cross valve, finned heat exchanger, electromagnetic valve, first single
To valve, the second check valve, the 3rd check valve, the 4th check valve, exsiccator, heating power expansion valve, heat exchanger and gas-liquid separator, institute
Finned heat exchanger and heat exchanger are stated built with cold-producing medium, between the port of export of the compressor and the arrival end of finned heat exchanger
Connect cross valve on pipeline, the port of export of the finned heat exchanger is connected to the pipeline between the first check valve and the 3rd check valve
On, one end of the electromagnetic valve is connected with the port of export of finned heat exchanger, the other end is connected to the first check valve and the 3rd is unidirectional
On pipeline between valve, the port of export of first check valve is connected with the port of export of the second check valve, second check valve
Arrival end be connected with the port of export of the 4th check valve, the arrival end of the arrival end of the 4th check valve and the 3rd check valve connects
Connect, the port of export of the 3rd check valve is connected with the arrival end of the first check valve, the arrival end of the exsiccator is connected to
On official road between one check valve and the second check valve, the arrival end connection of the port of export and heating power expansion valve, the thermal expansion
The port of export of valve is connected on the pipeline between the 3rd check valve and the 4th check valve, and one end of the heat exchanger is connected to second
On pipeline between check valve and the 4th check valve, the other end and cross valve connection, the heat exchanger enters with gas-liquid separator
Connect cross valve on pipeline between mouth end, the port of export of the gas-liquid separator is connected with the arrival end of compressor；The wing
Defrost pipe is installed, the defrost pipe is connected with defrost input channel and defrost output channel, the electromagnetic valve in piece heat exchanger
On defrost output channel, the finned heat exchanger is connected with finned heat exchanger input channel and finned heat exchanger outlet tube
Road, the finned heat exchanger surface is provided with several fins.
Using the utility model of the technical program, during refrigeration, compressor is by the low-temperature low-pressure refrigerant gas in heat exchanger
Suction cylinder, through compressor work, makes cold-producing medium become the gas of High Temperature High Pressure, and gas Jing cross valves enter finned heat exchanger
Interior, refrigerant gas and the air of High Temperature High Pressure carry out heat exchange, impart heat to air, and refrigerant gas are condensed into high pressure
Liquid, highly pressurised liquid sequentially passes through heating power expansion valve Jing after the first check valve and the 4th check valve enters heat exchanger, in heat exchanger
Interior, low pressure liquid refrigerant absorbs the heat vaporization of chilled water, so that chilled water temperature is reduced, becomes low required for us
Warm cold water, the low-pressure low-temperature refrigerant gas after vaporizing in heat exchanger are inhaled by compressor again after cross valve and gas-liquid separator
Enter compression, so go round and begin again, constantly circulation, continuously produces cold water；
When heating, the low-temp low-pressure refrigerant gas in finned heat exchanger is sucked cylinder by compressor, through compressor work,
The gas of High Temperature High Pressure is made, Jing cross valves are entered in heat exchanger, the refrigerant gas and hydrothermal exchange of High Temperature High Pressure,
Heat passes to the water in heat exchanger, and delivery to user is heated, and refrigerant gas are condensed into highly pressurised liquid, highly pressurised liquid
Heating power expansion valve is sequentially passed through Jing after the second check valve reducing pressure by regulating flow and the 3rd check valve enters finned heat exchanger, in fin heat exchange
In device, the heat vaporization of low pressure liquid refrigerant absorption air, low-pressure low-temperature refrigerant gas Jing in finned heat exchanger after heat absorption
Cross after cross valve and gas-liquid separator again by compressor suction compression, so go round and begin again, constantly circulation, continuous hot water preparing；
When heating, there is frost on finned heat exchanger, affect finned heat exchanger to be exchanged heat with air, efficiency is low,
After opening defrost pattern, electromagnetic valve is opened, from compressor high-temperature high-pressure refrigerant gas out through cross valve, from cross valve
Out divide two-way, a main road to enter finned heat exchanger, enter into the bottom of finned heat exchanger all the way in addition, flow through defrost pipe,
Two-way cold-producing medium after heat exchange all flows out finned heat exchanger, and the cold-producing medium of two pipelines sequentially passes through after pooling together
One check valve, exsiccator, heating power expansion valve, the 4th check valve, heat exchanger, cross valve, gas-liquid separator, are then return to compressor
It is circulated.Such structure design, make net for air-source heat pump units under cryogenic defrost when, defrost effect is good, and fin is changed
Hot device bottom does not freeze, high with the rate of heat exchange of air.
Further limit, the fin is rectangular sheet structure.Such structure design, makes fin have simple structure tight
Gather, beneficial to defrosting, easy to manufacture the advantages of.
Further limit, the net for air-source heat pump units also includes exsiccator, the arrival end of the exsiccator is connected to the
On pipeline between one check valve and the second check valve, the arrival end connection of the port of export and heating power expansion valve.Such structure sets
Meter, can be such that the impurity in cold-producing medium further cleans, the stability of strengthening system.
Further limit, the cold-producing medium is R416A.Such design because R416A have cleaning, low toxicity, do not fire,
The advantages of good refrigeration effect.
Description of the drawings
The nonlimiting examples that this utility model can be given by accompanying drawing are further illustrated；
Fig. 1 be this utility model it is a kind of can defrost net for air-source heat pump units embodiment structural representation；
Fig. 2 is the structural representation of vaporizer in Fig. 1；
Main element symbol description is as follows：
1st, finned heat exchanger；2nd, fin；3rd, finned heat exchanger input channel；4th, finned heat exchanger output channel；5th, defrost
Input channel；6th, electromagnetic valve；7th, defrost pipe；8th, defrost output channel；9th, compressor；10th, cross valve；11st, the first check valve；
12nd, the second check valve；13rd, the 3rd check valve；14th, the 4th check valve；15th, exsiccator；16th, heating power expansion valve；17th, heat exchanger；
18th, gas-liquid separator.
Specific embodiment
In order that those skilled in the art may be better understood this utility model, it is right with reference to the accompanying drawings and examples
Technical solutions of the utility model are further illustrated.
As shown in Figure 1 and Figure 2, it is of the present utility model it is a kind of can defrost net for air-source heat pump units, including compressor 9, four-way
Valve 10, finned heat exchanger 1, electromagnetic valve 6, the first check valve 11, the second check valve 12, the 3rd check valve 13, the 4th check valve 14,
Heating power expansion valve 16, heat exchanger 17 and gas-liquid separator 18, finned heat exchanger 1 and heat exchanger 17 are built with cold-producing medium, compressor 9
The port of export and the arrival end of finned heat exchanger 1 between pipeline on connect cross valve 10, finned heat exchanger 1 the port of export connection
On pipeline between the first check valve 11 and the 3rd check valve 13, one end of electromagnetic valve 6 connects with the port of export of finned heat exchanger 1
Connect, the other end is connected on the pipeline between the first check valve 11 and the 3rd check valve 13, the port of export of the first check valve 11 with
The port of export connection of the second check valve 12, the arrival end of the second check valve 12 is connected with the port of export of the 4th check valve 14, and the 4th
The arrival end of check valve 14 is connected with the arrival end of the 3rd check valve 13, the port of export of the 3rd check valve 13 and the first check valve 11
Arrival end connection, the arrival end of heating power expansion valve 16 is connected to the pipeline between the first check valve 11 and the second check valve 12
The upper, port of export is connected on the pipeline between the 3rd check valve 13 and the 4th check valve 14, and one end of heat exchanger 17 is connected to the
On pipeline between two check valves 13 and the 4th check valve 14, the other end and cross valve 10 connect, heat exchanger 17 and gas-liquid separation
Connect cross valve 10 on pipeline between the arrival end of device 18, the port of export of gas-liquid separator 18 connects with the arrival end of compressor 9
Connect；Defrost pipe 7 is installed in finned heat exchanger 1, defrost pipe 7 is connected with defrost input channel 5 and defrost output channel 8, electromagnetism
Valve 6 is arranged on defrost output channel 8, and finned heat exchanger 1 is connected with finned heat exchanger input channel 3 and finned heat exchanger output
Pipeline 4, the surface of finned heat exchanger 1 is provided with several fins 2.
In the present embodiment, during refrigeration, as shown in the solid direction of arrow, compressor 9 is by the low-temp low-pressure system in heat exchanger 17
Refrigerant gas suck cylinder, through compressor work, make cold-producing medium become the gas of High Temperature High Pressure, and gas Jing cross valves 10 are entered
In finned heat exchanger 1, the refrigerant gas of High Temperature High Pressure carry out heat exchange with air, impart heat to air, and cold-producing medium gas
Body is condensed into highly pressurised liquid, and it is single that highly pressurised liquid sequentially passes through heating power expansion valve 16 and the 4th Jing after the reducing pressure by regulating flow of the first check valve 11
Heat exchanger 17 is entered to valve 14, in heat exchanger 17, low pressure liquid refrigerant absorbs the heat vaporization of chilled water, so that coolant
Coolant-temperature gage is reduced, and becomes the low-temperature cold water required for us, and the low-pressure low-temperature refrigerant gas after vaporizing in heat exchanger 17 are passed through
Again compression is sucked by compressor 9 after cross valve 10 and gas-liquid separator 18, so gone round and begun again, constantly circulation, continuously produces cold
Water；
When heating, as shown in hollow arrow direction, compressor 9 inhales the low-temp low-pressure refrigerant gas in finned heat exchanger 1
Enter cylinder, do work through compressor 9, make the gas of High Temperature High Pressure, Jing cross valves 10 are entered in heat exchanger 17, and high temperature is high
The refrigerant gas and hydrothermal exchange of pressure, impart heat to the water in heat exchanger 17, and delivery to user is heated, and freeze
Agent gas condensation is highly pressurised liquid, and highly pressurised liquid sequentially passes through heating power expansion valve 16 and the Jing after the reducing pressure by regulating flow of the second check valve 12
Three check valves 13 enter finned heat exchanger 1, and in finned heat exchanger 1, the heat vaporization of low pressure liquid refrigerant absorption air is inhaled
Low-pressure low-temperature refrigerant gas are inhaled by compressor 9 again after cross valve 10 and gas-liquid separator 18 in finned heat exchanger 1 after heat
Enter compression, so go round and begin again, constantly circulation, continuous hot water preparing；
When heating, there is frost on finned heat exchanger 1, affect finned heat exchanger 1 to be exchanged heat with air, efficiency
It is low, after opening defrost pattern, as shown in the solid direction of arrow, electromagnetic valve 6 is opened, from the High Temperature High Pressure refrigeration out of compressor 9
Agent gas out divides two-way, a main road to enter finned heat exchanger 1, enter all the way in addition through cross valve 10 from cross valve 10
To the bottom of finned heat exchanger 1, defrost pipe 7 is flowed through, the two-way cold-producing medium after heat exchange all flows out finned heat exchanger 1, two
The cold-producing medium of pipeline sequentially passes through the first check valve 11, heating power expansion valve 16, the 4th check valve 14, heat exchanger after pooling together
17th, cross valve 10, gas-liquid separator 18, are then return to compressor 9 and are circulated.Such structure design, makes air source heat pump
Unit under cryogenic defrost when, defrost effect is good, and finned heat exchanger bottom does not freeze, high with the rate of heat exchange of air.
It is preferred that fin 2 is rectangular sheet structure, such structure design, make fin 2 have it is simple and compact for structure, beneficial to removing
The advantages of frost, easy to manufacture.In fact, the planform of fin 2 can also be specifically considered as the case may be, such as corrugated,
Spiral type.
It is preferred that net for air-source heat pump units also includes exsiccator 15, the arrival end of exsiccator 15 is connected to the He of the first check valve 11
On pipeline between second check valve 12, the arrival end connection of the port of export and heating power expansion valve 16, such structure design can be with
The impurity in cold-producing medium is set further to clean, the stability of strengthening system.In fact, it can also as the case may be selected
He filters the mode of cold-producing medium.
Preferred refrigerant is R416A, such design because R416A have cleaning, low toxicity, do not fire, good refrigeration effect etc.
Advantage.In fact, other cold-producing mediums, such as R410A, R502 can also be selected as the case may be.
This utility model is provided above it is a kind of can the net for air-source heat pump units of defrost be described in detail.It is concrete real
The explanation for applying example is only intended to help and understands method of the present utility model and its core concept.It should be pointed out that for this technology neck
For the those of ordinary skill in domain, on the premise of without departing from this utility model principle, if can also carry out to this utility model
Dry to improve and modify, these are improved and modification is also fallen in this utility model scope of the claims.
Claims (4)
1. it is a kind of can defrost net for air-source heat pump units, it is characterised in that：Including compressor (9), cross valve (10), fin heat exchange
Device (1), electromagnetic valve (6), the first check valve (11), the second check valve (12), the 3rd check valve (13), the 4th check valve (14),
Heating power expansion valve (16), heat exchanger (17) and gas-liquid separator (18), the finned heat exchanger (1) and heat exchanger (17) built with
Cold-producing medium, on the pipeline between the port of export and the arrival end of finned heat exchanger (1) of the compressor (9) cross valve is connected
(10), the port of export of the finned heat exchanger (1) is connected to the pipeline between the first check valve (11) and the 3rd check valve (13)
On, one end of the electromagnetic valve (6) is connected with the port of export of finned heat exchanger (1), the other end is connected to the first check valve (11)
And the 3rd on the pipeline between check valve (13), the port of export of first check valve (11) and the outlet of the second check valve (12)
End connection, the arrival end of second check valve (12) is connected with the port of export of the 4th check valve (14), the 4th check valve
(14) arrival end is connected with the arrival end of the 3rd check valve (13), and the port of export of the 3rd check valve (13) is unidirectional with first
The arrival end connection of valve (11), the arrival end of the heating power expansion valve (16) is connected to the first check valve (11) and the second check valve
(12) on the pipeline between, the port of export be connected on the pipeline between the 3rd check valve (13) and the 4th check valve (14), it is described
One end of heat exchanger (17) is connected on the pipeline between the second check valve (13) and the 4th check valve (14), the other end and four-way
Valve (10) connects, and on the pipeline between the heat exchanger (17) and the arrival end of gas-liquid separator (18) cross valve (10) is connected,
The port of export of the gas-liquid separator (18) is connected with the arrival end of compressor (9)；
Defrost pipe (7) is installed, the defrost pipe (7) is connected with defrost input channel (5) and changes in the finned heat exchanger (1)
White output channel (8), on defrost output channel (8), the finned heat exchanger (1) is connected with wing to the electromagnetic valve (6)
Piece heat exchanger input channel (3) and finned heat exchanger output channel (4), finned heat exchanger (1) surface is provided with several
Fin (2).
2. it is according to claim 1 it is a kind of can defrost net for air-source heat pump units, it is characterised in that：The fin (2) is
Rectangular sheet structure.
3. it is according to claim 2 it is a kind of can defrost net for air-source heat pump units, it is characterised in that：The air source heat pump
Unit also includes exsiccator (15), and the arrival end of the exsiccator (15) is connected to the first check valve (11) and the second check valve
(12) on the pipeline between, the arrival end connection of the port of export and heating power expansion valve (16).
4. it is according to claim 3 it is a kind of can defrost net for air-source heat pump units, it is characterised in that：The cold-producing medium is
R416A。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621072916.9U CN206113408U (en) | 2016-09-22 | 2016-09-22 | Can change air source heat pump unit of frost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621072916.9U CN206113408U (en) | 2016-09-22 | 2016-09-22 | Can change air source heat pump unit of frost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206113408U true CN206113408U (en) | 2017-04-19 |
Family
ID=58521444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621072916.9U Expired - Fee Related CN206113408U (en) | 2016-09-22 | 2016-09-22 | Can change air source heat pump unit of frost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206113408U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266842A (en) * | 2018-01-29 | 2018-07-10 | 青岛志青华新能源有限公司 | A kind of compression air-conditioning system |
| CN110455005A (en) * | 2019-07-20 | 2019-11-15 | 深圳市辉宏技术有限公司 | A kind of cold and hot balance unit of double source |
| CN110762708A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
-
2016
- 2016-09-22 CN CN201621072916.9U patent/CN206113408U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108266842A (en) * | 2018-01-29 | 2018-07-10 | 青岛志青华新能源有限公司 | A kind of compression air-conditioning system |
| CN110762708A (en) * | 2018-07-28 | 2020-02-07 | 青岛海尔空调器有限总公司 | Self-cleaning control method for air conditioner |
| CN110455005A (en) * | 2019-07-20 | 2019-11-15 | 深圳市辉宏技术有限公司 | A kind of cold and hot balance unit of double source |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170419 Termination date: 20180922 |