CN206291522U - A kind of microchannel air-conditioner - Google Patents
A kind of microchannel air-conditioner Download PDFInfo
- Publication number
- CN206291522U CN206291522U CN201621383293.7U CN201621383293U CN206291522U CN 206291522 U CN206291522 U CN 206291522U CN 201621383293 U CN201621383293 U CN 201621383293U CN 206291522 U CN206291522 U CN 206291522U
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- heat exchanger
- compressor
- pipeline
- flow path
- outdoor heat
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Abstract
The utility model is related to air-conditioning technical field, disclose a kind of microchannel air-conditioner, including the compressor, outdoor heat exchanger, throttling arrangement and the indoor heat exchanger that are connected by pipeline, to constitute refrigerating circuit or heat loop, also include bypass flow path, pipeline connection between the first end of the bypass flow path and the compressor and outdoor heat exchanger, second end of the bypass flow path and the pipeline between the throttling arrangement and indoor heat exchanger are connected, or the second end of the bypass flow path and the pipeline between the outdoor heat exchanger and throttling arrangement are connected；The bypass flow path is provided with the regulating valve of adjusting refrigerant flow rate；The outdoor heat exchanger is micro-channel heat exchanger.The utility model can reduce the pressure at expulsion of compressor, realize that compressor smoothly starts.
Description
Technical field
The utility model is related to air-conditioning technical field, more particularly to a kind of microchannel air-conditioner.
Background technology
Current outside is micro-channel heat exchanger, and indoor is the air-conditioner set of copper pipe fin type heat exchanger, particularly singly
Cold to determine frequency air conditioning unit device, during cooling activation, due to micro-channel condenser, its inner passage is small, and resistance is big, leads
The circulation of HTHP refrigerant is caused to have some setbacks, so that the staring torque of compressor is excessive, it is easy to cause the compressor cannot normally to open
The protection of dynamic or hypertonia.Also some air-conditioner sets at condensator outlet by being designed with high pressure fluid reservoir, but it has
Shi Weibi can be effective, while cost is higher.
Utility model content
(1) technical problem to be solved
The technical problems to be solved in the utility model be how to ensure microchannel air-conditioner refrigeration when compressor can be suitable
Profit starts, it is to avoid compressor start torque is excessive or protects situation about shutting down.
(2) technical scheme
In order to solve the above-mentioned technical problem, the utility model provides a kind of microchannel air-conditioner, including is connected by pipeline
Compressor, outdoor heat exchanger, throttling arrangement and indoor heat exchanger, to constitute refrigerating circuit or heat loop, also including side
Through-flow road, the pipeline connection between the first end of the bypass flow path and the compressor and outdoor heat exchanger, the bypass stream
Second end on road and the pipeline between the throttling arrangement and indoor heat exchanger are connected, or the bypass flow path the second end and institute
State the pipeline connection between outdoor heat exchanger and throttling arrangement；The bypass flow path is provided with the regulation of adjusting refrigerant flow rate
Valve；The outdoor heat exchanger is micro-channel heat exchanger.
Wherein, also including pressure sensor and controller, the pressure sensor is used to detect the pressure at expulsion of compressor,
The controller is used to be controlled according to the pressure at expulsion of compressor the aperture of the regulating valve.
Wherein, the regulating valve can be variable-flow formula magnetic valve.
Wherein, the indoor heat exchanger is copper pipe fin type heat exchanger.
Wherein, the compressor is connected with the indoor heat exchanger and outdoor heat exchanger respectively by reversal valve, to realize
Refrigerating circuit and heat the switching in loop.
Wherein, gas-liquid separator can be provided between the reversal valve and the return line of compressor.
Wherein, the pipeline between the outdoor heat exchanger and throttling arrangement be provided with filter and/or the throttling arrangement with
Pipeline between indoor heat exchanger is provided with filter.
(3) beneficial effect
Compared with prior art, the utility model has advantages below：
A kind of microchannel air-conditioner that the utility model is provided, by setting bypass flow path, compressor in cooling mode
During startup, bypass flow path can be the refrigerant gas guiding of the part HTHP of compressor discharge to indoor heat exchanger or section
In pipeline where stream device, avoid that aperture is small, the big outdoor heat exchanger of resistance, so that the pressure at expulsion of compressor is reduced, it is real
Existing compressor smoothly starts.
Brief description of the drawings
Fig. 1 is a kind of integrated connection schematic diagram of microchannel air-conditioner of the utility model；
In figure：1：Compressor；2：Reversal valve；3：Outdoor heat exchanger；4：Outer blower fan；5：Filter；6：Throttling arrangement；7：It is interior
Blower fan；8：Indoor heat exchanger；9：Gas-liquid separator；10：Pressure sensor；11：Regulating valve.
Specific embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Example is used to illustrate the utility model, but is not limited to scope of the present utility model.
In description of the present utility model, it is necessary to explanation, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score,
The orientation or position relationship of the instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom " " interior ", " outward " are
Based on orientation shown in the drawings or position relationship, it is for only for ease of description the utility model and simplifies description, rather than instruction
Or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must not be understood that
It is to limitation of the present utility model.Additionally, term " first ", " second ", " the 3rd " etc. are only used for describing purpose, without being understood that
To indicate or implying relative importance.
, it is necessary to explanation, unless otherwise clearly defined and limited, term " is pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integratedly
Connection；Can mechanically connect, or electrically connect；Can be joined directly together, it is also possible to be indirectly connected to by intermediary,
Can be two connections of element internal.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
As shown in figure 1, a kind of microchannel air-conditioner provided for the utility model, including the compressor connected by pipeline
1st, outdoor heat exchanger 3, throttling arrangement 6 and indoor heat exchanger 8, to constitute refrigerating circuit or heat loop, wherein, the outdoor
Heat exchanger 3 be micro-channel heat exchanger, in embodiment of the present utility model, the compressor 1 by reversal valve 2 respectively with the room
Interior heat exchanger 8 and outdoor heat exchanger 3 are connected, the preferred four-way reversing valve 2 of the reversal valve 2, the flow direction for switching refrigerant, real
Existing air-conditioner refrigerating circuit and heat the switching in loop, its also including bypass flow path, the first end of the bypass flow path with it is described
Between compressor 1 and outdoor heat exchanger 3 pipeline connection, some refrigerant gas distribution that compressor 1 is discharged out, with
The pressure at expulsion of compressor 1 is reduced, between the second end of the bypass flow path and the throttling arrangement 6 and indoor heat exchanger 8
Pipeline is connected, the preferred copper pipe fin type heat exchanger of indoor heat exchanger 8, and its aperture is big, directs the refrigerant into the institute of indoor heat exchanger 8
In pipeline, cold-producing medium stream is clear and coherent smooth, or the second end of the bypass flow path can also be with the outdoor heat exchanger 3 and throttling arrangement
Refrigerant gas are guided to the pipeline between throttling arrangement 6 and outdoor heat exchanger 3, the system of HTHP by the pipeline connection between 6
Refrigerant gas are lowered the temperature by the throttling of throttling arrangement 6, the temperature and pressure of high temperature refrigerant gas can be reduced, after decrease temperature and pressure
Refrigerant flow into indoor heat exchanger 8 again, the influence to air conditioner refrigeration effect is reduced as far as possible；By tapped refrigerant so that portion
Point refrigerant gets around outdoor heat exchanger 3, so as to ensure that compressor 1 can smoothly start, it is to avoid the staring torque of compressor 1 it is excessive or
Person's protection is shut down, and the bypass flow path is provided with the regulating valve 11 of adjusting refrigerant flow rate.
Specifically, in embodiment of the present utility model, also including pressure sensor 10 and controller, the pressure sensor
10 can be directly welded on the gas exhaust piping of compressor 1, and the pressure at expulsion for detecting compressor 1, the controller is used for
Pressure at expulsion according to compressor 1 controls the aperture of the regulating valve 11.
Wherein, the regulating valve 11 can be variable-flow formula magnetic valve, such as electric expansion valve.
Wherein, gas-liquid separator 9 can be provided between the return line of the reversal valve 2 and compressor 1, for muffler
Refrigerant air-liquid in road is separated.
Wherein, the pipeline between the outdoor heat exchanger 3 and throttling arrangement 6 is provided with filter 5, for impurity screening, and/
Or the pipeline between the throttling arrangement 6 and indoor heat exchanger 8 can also be provided with filter 5, for absorbing vapor.
In addition, to a kind of control method of microchannel air-conditioner of the utility model, comprising the following steps：
S1, air-conditioning start, when power on mode is refrigeration mode, regulating valve 11 opens maximum opening, and compressor 1 is opened,
And run the first setting time about six minutes；
S2, the exhaust pressure value for obtaining compressor, if exhaust pressure value is less than or equal to the first preset pressure value, are adjusted
Valve 11 is closed, if exhaust pressure value is more than the first preset pressure value and less than the second preset pressure value, the aperture of regulating valve 11
Progressively reduce and closed when exhaust pressure value is less than or equal to the first preset pressure value, if exhaust pressure value is more than or equal to second
Preset pressure value, keeps regulating valve to open, wherein, first preset pressure value is less than the second preset pressure value, and first presets
Pressure value is different according to refrigerant category with the second preset pressure value, different, and general first preset pressure value is for R410A
Refrigerant is 3.6Mpa, and R22 refrigerants are 2.8Mpa, and general second preset pressure value is 3.8Mpa, R22 refrigerants for R410A refrigerants
It is 3.0Mpa；
After S3, compressor 1 continue to run with the second setting time about three minutes, step S2 is performed.
The specific workflow of the utility model embodiment is：During refrigeration, the discharge high temperature and high pressure gas refrigerant of compressor 1,
Four-way valve is flowed through, into outdoor heat exchanger 3, by the rotation of outer blower fan 4, the HTHP in cooling medium air and pipe is driven
Gas coolant is exchanged heat, and refrigerant is cooled to the refrigerant of medium temperature and medium pressure, flows through filter 5, is throttled by electric expansion valve, is become
Into the refrigerant of the vehicle repair major of low-temp low-pressure, another filter 5 is passed through, enter into the copper pipe fin type heat exchange of indoor
In device, inner blower 7 drives the hot-air of interior and the vehicle repair major refrigerant of low-temp low-pressure in pipe to be exchanged heat so that room air
Temperature drop, while after the refrigerant heat absorption in pipe is evaporated, flowing through four-way valve, into gas-liquid separator 9, returns compressor 1 and enters
Row circulation, it is the flow direction of refrigerant that arrow is signified in figure；To ensure the smooth startup of compressor 1, according to above-mentioned controlling party
Method is operated.
As can be seen from the above embodiments, the utility model ensure that compressor smoothly starts, it is to avoid compressor start
Torque is excessive or protection is shut down.
Preferred embodiment of the present utility model is the foregoing is only, is not used to limit the utility model, it is all at this
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of microchannel air-conditioner, including compressor, outdoor heat exchanger, throttling arrangement and the indoor heat exchange connected by pipeline
Device, to constitute refrigerating circuit or heat loop, it is characterised in that also including bypass flow path, the first end of the bypass flow path
It is connected with the pipeline between the compressor and outdoor heat exchanger, the second end and the throttling arrangement and the room of the bypass flow path
Between interior heat exchanger pipeline connection, or the bypass flow path the second end and the outdoor heat exchanger and throttling arrangement between
Pipeline is connected；The bypass flow path is provided with the regulating valve of adjusting refrigerant flow rate；The outdoor heat exchanger is Thermal Performance of Micro Channels
Device.
2. microchannel air-conditioner according to claim 1, it is characterised in that also including pressure sensor and controller, institute
Pressure sensor is stated for detecting the pressure at expulsion of compressor, the controller is used to control institute according to the pressure at expulsion of compressor
State the aperture of regulating valve.
3. microchannel air-conditioner according to claim 2, it is characterised in that the regulating valve is variable-flow formula magnetic valve.
4. microchannel air-conditioner according to claim 1, it is characterised in that the indoor heat exchanger is changed for copper pipe fin type
Hot device.
5. microchannel air-conditioner according to claim 1, it is characterised in that the compressor by reversal valve respectively with institute
Indoor heat exchanger and outdoor heat exchanger connection are stated, with the switching realized refrigerating circuit and heat loop.
6. microchannel air-conditioner according to claim 5, it is characterised in that the return line of the reversal valve and compressor
Between be provided with gas-liquid separator.
7. the microchannel air-conditioner according to claim any one of 1-6, it is characterised in that the outdoor heat exchanger and throttling
The pipeline that pipeline between device is provided between filter and/or the throttling arrangement and indoor heat exchanger is provided with filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621383293.7U CN206291522U (en) | 2016-12-15 | 2016-12-15 | A kind of microchannel air-conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621383293.7U CN206291522U (en) | 2016-12-15 | 2016-12-15 | A kind of microchannel air-conditioner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206291522U true CN206291522U (en) | 2017-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621383293.7U Active CN206291522U (en) | 2016-12-15 | 2016-12-15 | A kind of microchannel air-conditioner |
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| CN (1) | CN206291522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705496A (en) * | 2016-12-15 | 2017-05-24 | 广州华凌制冷设备有限公司 | Micro-channel air conditioner and control method thereof |
-
2016
- 2016-12-15 CN CN201621383293.7U patent/CN206291522U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106705496A (en) * | 2016-12-15 | 2017-05-24 | 广州华凌制冷设备有限公司 | Micro-channel air conditioner and control method thereof |
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