CN209147321U - Air-conditioning system low-temperature heating device - Google Patents
Air-conditioning system low-temperature heating device Download PDFInfo
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- CN209147321U CN209147321U CN201821730535.4U CN201821730535U CN209147321U CN 209147321 U CN209147321 U CN 209147321U CN 201821730535 U CN201821730535 U CN 201821730535U CN 209147321 U CN209147321 U CN 209147321U
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Abstract
The utility model provides a kind of air-conditioning system low-temperature heating device, belongs to air-conditioning manufacturing technology field.It solves the problems such as low-temperature heating ability is not high in the prior art.This air-conditioning system low-temperature heating device, between throttling set and condenser, including supplementary heat exchanger, supplementary heat exchanger are equipped with first entrance, second entrance, first outlet and second outlet, first entrance is communicated with first outlet, and second entrance and second outlet communicate.The advantages of this air-conditioning system low-temperature heating device, is: when environment temperature is low too low, it opens and is set to the auxiliary throttle part that the second access is in charge of, inflow second is accessed into the refrigerant that the high temperature and pressure sub-cooled liquid refrigerant being in charge of switchs to the gas-liquid mixed of low-temp low-pressure using auxiliary throttle part, after supplementary heat exchanger heat exchange, it is improved the degree of supercooling of the first high temperature and pressure sub-cooled liquid refrigerant for picking out pipe outflow, thus this heating capacity for improving air-conditioning.
Description
Technical field
The utility model belongs to air-conditioning manufacturing technology field, more particularly, to a kind of air-conditioning system low-temperature heating device.
Background technique
As world industry level is continuously improved, CO emission constantly increases, increasing environmental pollution, and at me
The place heat supply of state's northern country also uses coal, has been further exacerbated by the deterioration of environmental pollution, is badly in need of with cleaning efficiency substitution north
The heat supply in square rural area, air-conditioning system heat supply are a kind of heat-supplying modes convenient for cleaning for rural area.The air conditioner of the prior art exists
When low-temperature heating, if extraneous circumstance temperature degree is lower than subzero 10 DEG C, air-conditioning system condensation temperature, evaporation are caused since environment temperature is low
Temperature is low, so that Energy Efficiency Ratio is low, the low demand for being unable to satisfy user's heat supply of heating capacity；And low temperature environment discharge superheat it is low from
And the probability for making air-conditioning system there is back liquid is big, the compressor service life can be greatly shortened by returning liquid for a long time, or even will cause compressor
Damage, and then cause existing domestic air conditioner reliability, safety poor.
Utility model content
The purpose of this utility model be in view of the above-mentioned problems, provide it is a kind of design rationally, improve air-conditioning system in low temperature ring
The air-conditioning system low-temperature heating device of the low problem of heating capacity under the operating condition of border.
In order to achieve the above objectives, the utility model uses following technical proposal: the air-conditioning system low temperature of the utility model
Heating combined equipment is set between throttling set and condenser, including supplementary heat exchanger, and supplementary heat exchanger is equipped with first entrance, the
Two entrances, first outlet and second outlet, first entrance are communicated with first outlet, and second entrance and second outlet communicate, special
Sign is: further including the access general pipeline being connected to condensator outlet end, the other end for accessing general pipeline is distinguished by the first tee tube
One end that the one end and the second access being in charge of with the first access are in charge of is connected to, and the second access is in charge of middle part and is equipped with auxiliary throttle
Part, the other end that the first access is in charge of are connected to first entrance, and the second access is in charge of to be connected to second entrance, and first outlet passes through
First picks out pipe is connected to throttling set.Access the high temperature and pressure sub-cooled liquid refrigerant point of condenser in general pipeline future outlet end
Not Jie Ru first access be in charge of with second access be in charge of in, when environment temperature is low too low, open be set to second access is in charge of
Auxiliary throttle part, inflow second is accessed into the high temperature and pressure sub-cooled liquid refrigerant be in charge of using auxiliary throttle part and is switched to
The refrigerant of the gas-liquid mixed of low-temp low-pressure after supplementary heat exchanger heat exchange, makes the first high temperature height for picking out pipe outflow
The degree of supercooling of pressure sub-cooled liquid refrigerant is improved, thus this heating capacity for improving air-conditioning.
Preferably, second outlet picks out pipe by second and is connected to the gas supplementing opening of compressor.By supplementary heat exchanger heat
After exchange, the air-breathing enthalpy of the refrigerant for the gas-liquid mixed for picking out the low-temp low-pressure that pipe flows out from second is improved, and is had
Effect improves suction temperature, thus greatly improves the heating capacity of compressor, so that air-conditioning system heating is greatly improved, and
It is effectively reduced back the generation of liquid, finally greatly improves the reliability and heating capacity of operation of air conditioner.
Preferably, the first access is in charge of middle part and is connected to by the second tee tube with one end of isocon, the isocon
The other end and auxiliary throttle part connection.The setting of isocon enhances high to the required high temperature of auxiliary throttle part
Press through the conveying capacity of cold amount of liquid refrigerant.
Preferably, isocon is equipped with the control valve of control uninterrupted.The setting of control valve, which has enhanced, saves auxiliary
The ability of regulation and control of the required high temperature and pressure sub-cooled liquid refrigerant amount of stream unit can according to need and carry out different tune
Control.
Preferably, control valve is shut-off valve.It is at low cost, it runs smoothly, it is easy-maintaining.
Preferably, supplementary heat exchanger is plate heat exchanger.Reduce the demand to installation space size.
Preferably, auxiliary throttle part is any one in capillary and throttle valve.
Compared with prior art, the advantages of this air-conditioning system low-temperature heating device, is: when environment temperature is low too low, beating
Auxiliary throttle part is opened, the high temperature and pressure sub-cooled liquid refrigerant come out from condenser, directly by shut-off valve adapter tube a part
Into plate heat exchanger, another part becomes the refrigerant of the gas-liquid mixed of low-temp low-pressure after throttling by auxiliary throttle part
Into plate heat exchanger；Pass through plate heat exchanger by the high temperature and pressure sub-cooled liquid refrigerant that shut-off valve enters plate heat exchanger
Heat exchange is carried out in plate heat exchanger with the refrigerant of the gas-liquid mixed by the low-temp low-pressure after auxiliary throttle part throttling, from
And the degree of supercooling of high temperature and pressure sub-cooled liquid refrigerant is improved to improve heating capacity, and other side passes through auxiliary throttle part
After throttling the refrigerant of the gas-liquid mixed of low-temp low-pressure by plate heat exchanger heat exchange become be saturated gaseous refrigerant enter pressure
Contracting machine effectively raises suction temperature to improve air-breathing enthalpy, thus greatly improves the heating capacity of compressor, to make
Air-conditioning system heating greatly improves, and is effectively reduced back the generation of liquid, finally greatly improves the utility model air-conditioning
The reliability and heating capacity of system.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Fig. 1 provides the structural schematic diagram in the utility model embodiment.
In figure, supplementary heat exchanger 201, second entrance 203, first outlet 204, second outlet 205, is connect first entrance 202
Enter general pipeline 206, the access of the first tee tube 207, first is in charge of the 208, second access and is in charge of 209, auxiliary throttle part 210, first
It picks out pipe 211, the second tee tube 212, isocon 213, second pick out pipe 214.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
As shown in Figure 1, this air-conditioning system low-temperature heating device, is set between throttling set and condenser, including auxiliary is changed
Hot device 201, supplementary heat exchanger 201 are equipped with first entrance 202, second entrance 203, first outlet 204 and second outlet 205,
First entrance 202 is communicated with first outlet 204, and second entrance 203 and second outlet 205 communicate, it is characterised in that: further include with
The other end of the access general pipeline 206 of condensator outlet end connection, access general pipeline 206 are by the first tee tube 207 respectively with first
One end that access is in charge of 208 is connected to one end that the second access is in charge of 209, and the second access is in charge of 209 middle parts and is equipped with auxiliary throttling
Component 210, the other end that the first access is in charge of 208 are connected to first entrance 202, and 209 and second entrance 203 are in charge of in the second access
Connection, first outlet 204 pick out pipe 211 by first and are connected to throttling set, access general pipeline condenser in 206 future outlet end
High temperature and pressure sub-cooled liquid refrigerant be respectively connected to the first access be in charge of 208 and second access be in charge of in 209, work as environment temperature
When low too low, open and be set to the auxiliary throttle part 210 that the second access is in charge of on 209, will be flowed into using auxiliary throttle part 210
The high temperature and pressure sub-cooled liquid refrigerant that second access is in charge of 209 switchs to the refrigerant of the gas-liquid mixed of low-temp low-pressure, is passing through
After 201 heat exchange of supplementary heat exchanger, obtain the degree of supercooling of the first high temperature and pressure sub-cooled liquid refrigerant for picking out the outflow of pipe 211
It improves, thus this heating capacity for improving air-conditioning.
Specifically, second outlet 205 here picks out pipe 212 by second and is connected to the gas supplementing opening of compressor, is passing through
After 201 heat exchange of supplementary heat exchanger, the air-breathing enthalpy of the refrigerant for the gas-liquid mixed for picking out the low-temp low-pressure that pipe 212 flows out from second
Value is improved, and effectively raises suction temperature, thus greatly improves the heating capacity of compressor, to make air-conditioning system
Heating greatly improves, and is effectively reduced back the generation of liquid, finally greatly improves the reliability and heating of operation of air conditioner
Amount；Here the first access is in charge of middle part on 208 and is connected to by the second tee tube 212 with one end of isocon 213, the shunting
The connection of the other end and auxiliary throttle part 210 of pipe 213, the setting of isocon 213 are enhanced to auxiliary throttle part 210
The conveying capacity of required high temperature and pressure sub-cooled liquid refrigerant amount.
Further, isocon 213 here is equipped with the control valve of control uninterrupted, and the setting of control valve enhances
To the ability of regulation and control of the required high temperature and pressure sub-cooled liquid refrigerant amount of auxiliary throttle part 210, can according to need
Carry out different regulations；Here control valve is shut-off valve, at low cost, is run smoothly, easy-maintaining；Here supplementary heat exchanger
201 be plate heat exchanger, reduces the demand to installation space size；Here auxiliary throttle part 210 is capillary and section
Flow any one in valve.
Working principle: the high temperature and pressure sub-cooled liquid refrigerant flowed out from condensator outlet end passes through access general pipeline 206, the
One tee tube 207 respectively enter the first access be in charge of 208 and second access be in charge of 209, then first access be in charge of 208 and second
Access the first entrance 202 and second that the high temperature and pressure sub-cooled liquid refrigerant being in charge of in 209 separately flows into supplementary heat exchanger 201
In entrance 203, when environment temperature is too low, opens and be set to the auxiliary throttle part 210 that the second access is in charge of on 209, second connects
Enter after the high temperature and pressure sub-cooled liquid refrigerant being in charge of in 209 flows through auxiliary throttle part 210 and is changed into the gas-liquid of low-temp low-pressure
Then mixed refrigerant, subsequently enters in supplementary heat exchanger 201, the height of first entrance 202 is flowed into supplementary heat exchanger 201
The refrigerant of the gas-liquid mixed of the low-temp low-pressure of warm high pressure sub-cooled liquid refrigerant and inflow second entrance 203 carries out heat exchange,
To improve the degree of supercooling of high temperature and pressure sub-cooled liquid refrigerant to improve heating capacity, and the high temperature that the degree of supercooling is improved is high
Pressure sub-cooled liquid refrigerant picks out 211 flow throttling device of pipe by first, it is preferable that the low temperature flowed into from second entrance 203
For the refrigerant of the gas-liquid mixed of low pressure after 201 heat exchange of supplementary heat exchanger, what is flowed out from second outlet 205 is saturation gaseous state
Refrigerant, which picks out pipe 214 by second and flows into the gas supplementing opening of compressor, to improve air-breathing enthalpy,
And suction temperature is effectively raised, thus greatly improves the heating capacity of compressor, so that air-conditioning system heating be made to mention significantly
Height, and it is effectively reduced back the generation of liquid, finally greatly improve the reliability and heating of the utility model air-conditioning system
Amount, it is preferable that flow into the high temperature and pressure sub-cooled liquid refrigerant that the first access is in charge of in 208 and pass through the second tee tube 212, shunting
Pipe 213 flows into part of it in the auxiliary throttle part 210 opened, and can pass through the control valve on isocon 213
To control the flow for being input to the auxiliary throttle part 210 opened.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although supplementary heat exchanger 201, first entrance 202, second entrance 203, first outlet is used more herein
204, second outlet 205, access general pipeline 206, the access of the first tee tube 207, first are in charge of the 208, second access and are in charge of 209, are auxiliary
Throttle part 210, first is helped to pick out pipe 211, the second tee tube 212, isocon 213, second pick out the terms such as pipe 214, but simultaneously
A possibility that being not excluded for using other terms.The use of these items is only for be more convenient to describe and explain the utility model
Essence；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (7)
1. a kind of air-conditioning system low-temperature heating device is set between throttling set and condenser, including supplementary heat exchanger (201),
The supplementary heat exchanger (201) goes out equipped with first entrance (202), second entrance (203), first outlet (204) and second
Mouth (205), the first entrance (202) are communicated with first outlet (204), the second entrance (203) and second outlet
(205) it communicates, it is characterised in that: further include the access general pipeline (206) being connected to condensator outlet end, the access general pipeline
(206) the other end is in charge of the one end of (208) with the first access respectively by the first tee tube (207) and the second access is in charge of
(209) one end connection, second access, which is in charge of in the middle part of (209), is equipped with auxiliary throttle part (210), and described first connects
The other end for entering to be in charge of (208) is connected to first entrance (202), and (209) and second entrance (203) are in charge of in second access
Connection, the first outlet (204) pick out pipe (211) by first and are connected to throttling set.
2. air-conditioning system low-temperature heating device according to claim 1, which is characterized in that the second outlet (205)
Pipe (214) is picked out by second to be connected to the gas supplementing opening of compressor.
3. air-conditioning system low-temperature heating device according to claim 1, which is characterized in that first access is in charge of
(208) middle part is connected to by the second tee tube (212) with one end of isocon (213) on, the other end of the isocon (213)
With the connection of auxiliary throttle part (210).
4. air-conditioning system low-temperature heating device according to claim 3, which is characterized in that on the isocon (213)
Control valve equipped with control uninterrupted.
5. air-conditioning system low-temperature heating device according to claim 4, which is characterized in that the control valve is cut-off
Valve.
6. air-conditioning system low-temperature heating device according to claim 1, which is characterized in that the supplementary heat exchanger
It (201) is plate heat exchanger.
7. air-conditioning system low-temperature heating device according to claim 1, which is characterized in that the auxiliary throttle part
It (210) is any one in capillary and throttle valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730535.4U CN209147321U (en) | 2018-10-24 | 2018-10-24 | Air-conditioning system low-temperature heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821730535.4U CN209147321U (en) | 2018-10-24 | 2018-10-24 | Air-conditioning system low-temperature heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209147321U true CN209147321U (en) | 2019-07-23 |
Family
ID=67270710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821730535.4U Active CN209147321U (en) | 2018-10-24 | 2018-10-24 | Air-conditioning system low-temperature heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209147321U (en) |
-
2018
- 2018-10-24 CN CN201821730535.4U patent/CN209147321U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 323000 No.96 Yunjing Road, Shuige Industrial Park, Lishui City, Zhejiang Province Patentee after: Zhejiang Zhongguang Electric Appliance Group Co.,Ltd. Address before: 323000 No.96 Yunjing Road, Shuige Industrial Park, Lishui City, Zhejiang Province Patentee before: ZHEJIANG ZHONGGUANG ELECTRIC APPLIANCES Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |