CN206001761U - A kind of air conditioning system - Google Patents
A kind of air conditioning system Download PDFInfo
- Publication number
- CN206001761U CN206001761U CN201620979544.1U CN201620979544U CN206001761U CN 206001761 U CN206001761 U CN 206001761U CN 201620979544 U CN201620979544 U CN 201620979544U CN 206001761 U CN206001761 U CN 206001761U
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- Prior art keywords
- gas
- switch valve
- air conditioning
- branch road
- conditioning system
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
This utility model is related to a kind of air conditioning system, including subcooler, the described tie point passing institute's cooler separates the first sub- branch road and the second sub- branch road, first sub- branch road is communicated with the entrance of gas-liquid separator after being heated by heat abstractor, second sub- branch road is directly communicated with the entrance of gas-liquid separator, when the actual degree of superheat of gas-liquid separator exit gas is less than the default degree of superheat, open the first switch valve on the first sub- branch road, close the second switch valve on the second sub- branch road；When the actual degree of superheat of gas-liquid separator exit gas is not less than the default degree of superheat, closes first switch valve, open second switch valve.This air conditioning system has been effectively ensured the temperature of the cooling coolant in subcooler it is ensured that it has preferable evaporation degree, thus the system that effectively prevent returns liquid, improves the performance of compressor and the reliability of work.
Description
Technical field
This utility model is related to air-conditioning manufacturing technology field, especially relates to a kind of air conditioning system.
Background technology
At present, air conditioning system because pipeline longer, the higher characteristic of drop, often arrange subcooler, to increase system
The degree of supercooling of system coolant, lifts refrigeration.
Under normal circumstances, the coolant in subcooler is entered by condenser and can be divided into two-way, a road is through the expansion of subcooler
Form the relatively low coolant of temperature in subcooler, this road coolant is referred to as cooling down coolant, in another road coolant and subcooler after valve
Cooling coolant carry out heat exchange after enter vaporizer in freezed；In current air conditioning system, complete the cooling of heat exchange
Coolant typically directly returns in the gas-liquid separator of suction side, then enters back into compressor.
Because the cooling coolant in subcooler is difficult to evaporating completely after supercool heat exchange, now it is passed straight back to gas-liquid separation
Be very easy in device to lead to system return liquid, compressor pressure of inspiration(Pi) too low, be unfavorable for the performance of compressor performance and work
Reliability.
Therefore, how to improve the temperature of cooling coolant in subcooler, improve its evaporation degree, it is to avoid system returns liquid,
Thus improving compressor performance with the reliability working is the technical problem of current those skilled in the art's urgent need to resolve.
Utility model content
The purpose of this utility model is to provide a kind of air conditioning system, to improving the temperature cooling down coolant in subcooler
Degree, improves its evaporation degree, it is to avoid system returns liquid, thus improving compressor performance and the reliability of work.
For reaching above-mentioned purpose, air conditioning system provided by the utility model, including the compressor being sequentially connected in series as loop,
Outdoor heat exchanger, subcooler, indoor heat exchanger and gas-liquid separator it is characterised in that
The refrigerant pipeline that described outdoor heat exchanger and described subcooler are connected be divided into the tie point that mutual heat exchange contacts and
Second branch road, described tie point is provided with and reduces refrigerant temperature to form the expansion valve of cooling coolant, described second branch road
It is connected with described indoor heat exchanger；
Pass the described tie point after described subcooler and separate the first sub- branch road and the second sub- branch road again, described first
Sub- branch road is communicated with the entrance of described gas-liquid separator after being heated by heat abstractor, described second sub- branch road directly with described gas-liquid
The entrance of separator communicates；
The gas superheat degree detection means being connected with described gas-liquid separator；
It is arranged on the first switch valve on the described first sub- branch road, and the second switch being arranged on the described second sub- branch road
Valve, when described air conditioning system is in refrigeration and heats state, if the actual degree of superheat of described gas-liquid separator exit gas is little
In the default degree of superheat, open described first switch valve, close described second switch valve；If described gas-liquid separator exit gas
The actual degree of superheat is not less than the described default degree of superheat, closes described first switch valve, opens described second switch valve.
Preferably, described gas superheat degree detection means includes pressure transducer and temperature sensor.
Preferably, when described air conditioning system is in and heats defrost state, open described first switch valve, close described the
Two switch valves.
Preferably, described heat abstractor is the drive control module of described air conditioning system.
Preferably, described heat abstractor is double pipe heat exchanger, and the housing of described sleeve pipe formula heat exchanger is set in described pressure
On the gas exhaust piping of contracting machine, and described first sub- branch road penetrates in the housing of described sleeve pipe formula heat exchanger, and with described compressor
Gas exhaust piping heat exchange contact.
Preferably, described first switch valve and described second switch valve are manual switch valve.
Preferably, the described default degree of superheat is 1 DEG C -3 DEG C.
As can be seen from the above technical solutions, in air conditioning system disclosed in the utility model, by first switch valve and
The opening and closing of second switch valve are it is achieved that when the actual degree of superheat in gas-liquid separator gas outlet is less than the default degree of superheat, right
Being back in gas-liquid separator after cooling coolant heating in subcooler, and the reality in gas-liquid separator gas outlet is overheated
When degree is not less than the default degree of superheat, make the purpose that cooling coolant is directly back in gas-liquid separator.Therefore this air conditioning system has
Effect ensure that the temperature of the cooling coolant in subcooler it is ensured that it has preferable evaporation degree, thus effectively prevent being
Unite back liquid, improve the performance of compressor and the reliability of work.
Brief description
Fig. 1 is the refrigerating state schematic diagram of the air conditioning system disclosed in a kind of embodiment of this utility model；
Fig. 2 heats view for the air conditioning system shown in Fig. 1；
Fig. 3 is the structural representation of the air conditioning system disclosed in another embodiment of this utility model.
Wherein, 1 is compressor, and 2 is oil eliminator, and 3 is high pressure sensor, and 4 is cross valve, and 5 is outdoor heat exchanger, and 6 are
Blower fan, 7 is the second branch road, and 8 is tie point, and 9 is expansion valve, and 10 is subcooler, and 11 is the first sub- branch road, and 12 is the second son
Road, 13 is first switch valve, and 14 is second switch valve, and 15 is heat abstractor, and 16 is indoor heat exchanger, and 17 is gas-liquid separator,
18 is temperature-sensitive bag, and 19 is low pressure sensor, and 20 is double pipe heat exchanger, and 21 is gas exhaust piping.
Specific embodiment
Core of the present utility model is to provide a kind of air conditioning system, to improving the temperature cooling down coolant in subcooler
Degree, improves its evaporation degree, it is to avoid system returns liquid, thus improving compressor performance and the reliability of work.
In order that those skilled in the art more fully understand this utility model scheme, below in conjunction with the accompanying drawings and be embodied as
The utility model is described in further detail for mode.
Refer to Fig. 1 to Fig. 3, Fig. 1 is the refrigerating state of the air conditioning system disclosed in a kind of embodiment of this utility model
Schematic diagram, Fig. 2 heats view for the air conditioning system shown in Fig. 1, and Fig. 3 is institute in another embodiment of this utility model
The structural representation of disclosed air conditioning system.
A kind of air conditioning system is disclosed, including the compressor 1 being sequentially connected in series as loop, outdoor in this utility model embodiment
Heat exchanger 5, subcooler 10, indoor heat exchanger 16 and gas-liquid separator 17, wherein,
The refrigerant pipeline that outdoor heat exchanger 5 is connected with subcooler 10 is divided into the tie point 8 and second that mutual heat exchange contacts
Branch road 7, tie point 8 is provided with reduction refrigerant temperature and is changed with interior with forming the expansion valve 9 of cooling coolant, the second branch road 7
Hot device 16 is connected；
Pass the tie point 8 after subcooler 10 and separate the first sub- branch road 11 and the second sub- branch road 12, the first son again
Road 11 is communicated with the entrance of gas-liquid separator 17 after being heated by heat abstractor 15, and the second sub- branch road 12 is directly and gas-liquid separator 17
Entrance communicate；
The gas superheat degree detection means being connected with gas-liquid separator 17；
It is arranged on the first switch valve 13 on the first sub- branch road 11, and the second switch valve being arranged on the second sub- branch road 12
14, when air conditioning system is in refrigeration and heats state, if the actual degree of superheat of gas-liquid separator 17 exit gas is less than presetting
The degree of superheat, opens first switch valve 13, closes second switch valve 14；If the actual degree of superheat of gas-liquid separator 17 exit gas is not
Less than the default degree of superheat, close first switch valve 13, open second switch valve 14.The default degree of superheat is according to different air conditioning systems
Can there are different changes, the scope presetting the degree of superheat under normal circumstances is 1 DEG C -3 DEG C.
Refer to Fig. 2 and Fig. 3, when the actual degree of superheat that gas-liquid separator exports 17 gases is less than the default degree of superheat, beat
Drive first switch valve 13, close second switch valve 14, the cooling coolant in subcooler 10 will return by after the first sub- branch road 11 again
It flow in gas-liquid separator 17, and the first sub- branch road 11 is heated by heat abstractor 15, this allows for cooling down the degree of superheat quilt of coolant
Lifting, its gasification degree is guaranteed, and effectively prevent excessive liquid and enters in gas-liquid separator 17, thus improve pressure
The performance of contracting machine 1 and the reliability of work.And the actual degree of superheat working as gas-liquid separator 17 exit gas be not less than default overheated
When spending, illustrate that the degree of superheat of cooling coolant in now subcooler 10 is higher, do not have excessive liquid to enter gas-liquid separator 17
Interior, the Performance And Reliability of compressor 1 will not be impacted, therefore cooling coolant need not be heated, close first and open
Close valve 13, open second switch valve 14, the cooling coolant in subcooler 10 is directly back in gas-liquid separator 17.
As can be seen here, the air conditioning system disclosed in above-described embodiment has been effectively ensured the cooling coolant in subcooler 10
Temperature it is ensured that it has preferable evaporation degree, thus the system that effectively prevent returns liquid, improve compressor 1 performance and
The reliability of work.
As shown in Figure 1 to Figure 3, the degree of superheat detection means in this utility model specifically includes pressure transducer and temperature passes
Sensor, pressure transducer is the low pressure sensor 19 being arranged on gas-liquid separator 17 inlet tube, and temperature sensor is to be arranged on
Temperature-sensitive bag 18 on gas-liquid separator 17 outlet, can be measured in this pressure by the cooperation of low pressure sensor 19 and temperature-sensitive bag 18
The actual degree of superheat of cold media gas under power.
Further, the air conditioning system disclosed in this utility model embodiment is optimized to heating defrost pattern,
Need to illustrate, the defrost that heats in the present embodiment specifically is realized heating defrost by the way of inverse circulation, in system
Transconversion into heat frost when, actual be equivalent to refrigerating state, only indoor set is not dried, heat during defrost need ensure cooling coolant enter
There is during gas-liquid separator 17 enough degrees of superheat, to increase the inspiration capacity of compressor 1, improve defrost effect, therefore heating
Under defrost state, open first switch valve 13, close second switch valve 14.
That is cooling coolant is made to be back to gas-liquid separator 17 again after heat abstractor 15 heating.Heating defrost
The actual degree of superheat of gas-liquid separator 17 gas outlet under pattern, need not be detected, after directly cooling coolant being heated, make it again
It is back to gas-liquid separator 17, to ensure that cooling down coolant has enough degrees of superheat.
Further, the heat abstractor 15 in the present embodiment is specially the drive control module in air conditioning system, ability
It is well known that drive control module can produce substantial amounts of heat in the course of the work, these heats need in time field technique personnel
Distribute, be otherwise unfavorable for the reliably working of drive control module, and make cooling coolant flow through drive control module, on the one hand realize
Heating to cooling coolant, on the other hand also achieves the radiating to drive module, has reached double while simplifying structure
Weight effect.Certainly, in addition also can arrange single heater the first sub- branch road 11 is heated as heat abstractor.
Refer to Fig. 3, the air conditioning system shown in Fig. 3 employs double pipe heat exchanger and the first sub- branch road 11 is carried out to add
Heat, specifically, the housing of this double pipe heat exchanger is set on the gas exhaust piping 21 of compressor 1, and the first sub- branch road 11 is worn
Enter in the housing of double pipe heat exchanger and contact with gas exhaust piping 21 heat exchange of compressor 1, this can utilize compressor air-discharging to the
Coolant heating in one sub- branch road 11.
First switch valve 13 and second switch valve 14 can be manual switch valve, automatically control of course for realization, first
Switch valve 13 and second switch valve 14 can be for being the electromagnetic valve being controlled by controller.
Above the air conditioning system in this utility model is described in detail.Specific case used herein is to this reality
It is set forth with new principle and embodiment, the explanation of above example is only intended to help understanding of the present utility model
Method and its core concept.It should be pointed out that for those skilled in the art, without departing from this utility model
On the premise of principle, this utility model can also be carried out with some improvement and modify, these improve and modification also falls into this practicality
In new scope of the claims.
Claims (7)
1. a kind of air conditioning system, including the compressor (1) being sequentially connected in series as loop, outdoor heat exchanger (5), subcooler (10), room
Interior heat exchanger (16) and gas-liquid separator (17) it is characterised in that
The tie point that the refrigerant pipeline that described outdoor heat exchanger (5) is connected with described subcooler (10) is divided into mutual heat exchange to contact
(8) and the second branch road (7), described tie point (8) is provided with and reduces refrigerant temperature to form the expansion valve of cooling coolant
(9), described second branch road (7) is connected with described indoor heat exchanger (16)；
Pass the described tie point (8) after described subcooler (10) and separate the first sub- branch road (11) and the second sub- branch road again
(12), described first sub- branch road (11) is communicated with the entrance of described gas-liquid separator (17) after being heated by heat abstractor, and described
Two sub- branch roads (12) are directly communicated with the entrance of described gas-liquid separator (17)；
The gas superheat degree detection means being connected with described gas-liquid separator (17)；
It is arranged on the first switch valve (13) on the described first sub- branch road (11), and be arranged on the described second sub- branch road (12)
Second switch valve (14), when described air conditioning system is in refrigeration and heats state, if described gas-liquid separator (17) is worked off one's feeling vent one's spleen
The actual degree of superheat of body is less than the default degree of superheat, opens described first switch valve (13), closes described second switch valve (14)；If
The actual degree of superheat of described gas-liquid separator exit gas is not less than the described default degree of superheat, closes described first switch valve
(13), open described second switch valve (14).
2. air conditioning system according to claim 1 is it is characterised in that described gas superheat degree detection means includes pressure biography
Sensor and temperature sensor.
3. air conditioning system according to claim 1 is it is characterised in that heat defrost state when described air conditioning system is in
When, open described first switch valve (13), close described second switch valve (14).
4. the air conditioning system according to claim 1-3 any one is it is characterised in that described heat abstractor (15) is described
The drive control module of air conditioning system.
5. the air conditioning system according to claim 1-3 any one is it is characterised in that described heat abstractor (15) is sleeve pipe
Formula heat exchanger, the housing of described sleeve pipe formula heat exchanger is set on the gas exhaust piping (21) of described compressor (1), and described first
Sub- branch road (11) penetrates in the housing of described sleeve pipe formula heat exchanger, and connects with gas exhaust piping (21) heat exchange of described compressor (1)
Touch.
6. air conditioning system according to claim 1 is it is characterised in that described first switch valve (13) and described second switch
Valve is manual switch valve (14).
7. air conditioning system according to claim 1 is it is characterised in that the described default degree of superheat is 1 DEG C -3 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620979544.1U CN206001761U (en) | 2016-08-29 | 2016-08-29 | A kind of air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620979544.1U CN206001761U (en) | 2016-08-29 | 2016-08-29 | A kind of air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206001761U true CN206001761U (en) | 2017-03-08 |
Family
ID=58194926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620979544.1U Expired - Fee Related CN206001761U (en) | 2016-08-29 | 2016-08-29 | A kind of air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206001761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382777A (en) * | 2016-08-29 | 2017-02-08 | 珠海格力电器股份有限公司 | Air conditioner system and reflowing control method for reflowing refrigerant of subcooler |
| CN114264032A (en) * | 2021-12-30 | 2022-04-01 | 广东Tcl智能暖通设备有限公司 | Supercooling valve control method and device, air conditioner and computer readable storage medium |
-
2016
- 2016-08-29 CN CN201620979544.1U patent/CN206001761U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106382777A (en) * | 2016-08-29 | 2017-02-08 | 珠海格力电器股份有限公司 | Air conditioner system and reflowing control method for reflowing refrigerant of subcooler |
| CN114264032A (en) * | 2021-12-30 | 2022-04-01 | 广东Tcl智能暖通设备有限公司 | Supercooling valve control method and device, air conditioner and computer readable storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170308 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |