CN208012133U - A kind of refrigeration system for preventing instantaneous pressure excessively high - Google Patents
A kind of refrigeration system for preventing instantaneous pressure excessively high Download PDFInfo
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- CN208012133U CN208012133U CN201721904085.1U CN201721904085U CN208012133U CN 208012133 U CN208012133 U CN 208012133U CN 201721904085 U CN201721904085 U CN 201721904085U CN 208012133 U CN208012133 U CN 208012133U
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- refrigeration system
- channel condenser
- excessively high
- compressor
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Abstract
The utility model discloses a kind of refrigeration systems for preventing instantaneous pressure excessively high, including compressor, micro-channel condenser, expansion valve, the evaporator being connected in turn in refrigeration pipeline, a buffer unit is connected in the refrigeration pipeline between compressor and micro-channel condenser.The utility model is set in the refrigeration pipeline between compressor and micro-channel condenser there are one buffer unit; when shutting down startup; high-pressure refrigerant is introduced into buffer unit into row buffering; then micro-channel condenser is entered back into; it can prevent pressure from instantaneously increasing, avoid the occurrence of alarm for high voltage even unit high pressure and shut down phenomenon.
Description
Technical field
The utility model is related to air-conditioning technicals.
Background technology
Single cold air-conditioner set just gradually substitutes traditional finned tube exchanger using micro-channel condenser at present, and microchannel is cold
Condenser compares more traditional finned tube exchanger, has heat exchange efficiency high, internal volume is small, and refrigerant rushes the few advantage of fluence.
But it is small just because of micro-channel condenser internal volume, it is switched to using the unit of fin tube condenser when originally micro-
After multi-pass condenser, the moment that compressor emergency shutdown restarts for a period of time, the pressure of compressor both sides is equal when due to compressor emergency shutdown
Weighing apparatus, instantaneous starting, a large amount of refrigerant is poured by compressor discharge inside micro-channel condenser, the dress of the throttlings such as expansion valve at this time
It sets and has little time to react, a large amount of refrigerants can be deposited in micro-channel condenser, and moment Compressor Discharge Pressure is caused to increase, unit warp
Often there is alarm for high voltage even unit high pressure and shuts down phenomenon.
Utility model content
Technical problem to be solved in the utility model is just to provide a kind of refrigeration system for preventing instantaneous pressure excessively high, keeps away
Exempt from alarm for high voltage even unit high pressure shutdown phenomenon occur.
In order to solve the above technical problems, the utility model adopts the following technical solution：It is a kind of to prevent instantaneous pressure excessively high
Refrigeration system, including the compressor, micro-channel condenser, expansion valve, the evaporator that are connected in turn in refrigeration pipeline, in compressor
A buffer unit is connected in refrigeration pipeline between micro-channel condenser, when shutting down startup, high-pressure refrigerant is introduced into slow
Then flushing device enters back into micro-channel condenser into row buffering.
Preferably, the buffer unit is gas-liquid separator, and the air inlet pipe of the gas-liquid separator accesses compressor side system
Cold pipeline, the escape pipe access micro-channel condenser side refrigeration pipeline of the gas-liquid separator.
Preferably, the volume of qi leel is at least 1.5 times of micro-channel condenser volume in the gas-liquid separator.
Preferably, a surge tank in parallel, the buffering on the refrigeration pipeline between compressor and micro-channel condenser
Tank is equipped with the air inlet pipe being connect with compressor side refrigeration pipeline and the oil return pipe being connect with micro-channel condenser side refrigeration pipeline.
Preferably, the air inlet pipe is equipped with and is opened when refrigeration system starts, and is closed after refrigeration system is stable
Solenoid valve.
Preferably, the air inlet pipe is equipped with the pressure opening and closing valve opened when pressure reaches setting value.
Preferably, the buffer unit is the surge tank being integrated on micro-channel condenser, the refrigerant of compressor discharge
Into surge tank, the refrigerant of surge tank discharge enters back into micro-channel condenser import, and the surge tank is additionally provided with and microchannel
The oil return opening of condenser connection.
Preferably, the evaporator is finned-tube evaporator.
The utility model is set in the refrigeration pipeline between compressor and micro-channel condenser there are one buffer unit, is shut down
When startup, high-pressure refrigerant is introduced into buffer unit into row buffering, then enters back into micro-channel condenser, can prevent pressure wink
Shi Shenggao avoids the occurrence of alarm for high voltage even unit high pressure and shuts down phenomenon.
Description of the drawings
The utility model is further described with reference to the accompanying drawings and detailed description：
Fig. 1 is refrigerant system configurations schematic diagram in the prior art；
Fig. 2 is the refrigerant system configurations schematic diagram in the utility model embodiment one；
Fig. 3 is the refrigerant system configurations schematic diagram in the utility model embodiment two；
Fig. 4 is the refrigerant system configurations schematic diagram in the utility model embodiment three；
Fig. 5 is the refrigerant system configurations schematic diagram in the utility model embodiment four.
Specific implementation mode
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.It is illustrative to the description only actually of at least one exemplary embodiment below, is never used as to this practicality
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
There is the every other embodiment obtained under the premise of making creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, in the prior art, refrigeration system includes the compressor 1 being connected in turn in refrigeration pipeline, microchannel
Condenser 2, expansion valve 3, evaporator 4, instantaneous starting, a large amount of refrigerant pours micro-channel condenser 2 by the discharge of compressor 1
Inside, at this time the throttling sets such as expansion valve 3 have little time to react, a large amount of refrigerants can be deposited in micro-channel condenser 2, cause moment
Compressor Discharge Pressure increases.
Therefore, the utility model is to prevent instantaneous pressure is excessively high from alarm for high voltage even unit high pressure shutdown phenomenon occur, is carried
For a kind of refrigeration system for preventing instantaneous pressure excessively high, shown in Fig. 5, compressor 1 and micro-channel condenser 2 it
Between refrigeration pipeline in set there are one buffer unit 5, shut down when starting, high-pressure refrigerant is introduced into buffer unit into row buffering,
Then micro-channel condenser is entered back into.
Embodiment one, as shown in Fig. 2, in the present embodiment, the buffer unit 5 is gas-liquid separator, the gas-liquid point
Air inlet pipe from device accesses compressor side refrigeration pipeline, the escape pipe access micro-channel condenser side refrigeration of the gas-liquid separator
Pipeline.
Wherein, the volume of qi leel is at least 1.5 times of micro-channel condenser volume in gas-liquid separator, so that gas-liquid separation
Device provides sufficient surge volume.
Embodiment two, as shown in figure 3, in the present embodiment, the refrigerator pipes between compressor 1 and micro-channel condenser 2
A road surge tank in parallel, the surge tank are equipped with the air inlet pipe 51 being connect with compressor side refrigeration pipeline and cold with microchannel
The oil return pipe 52 of condenser side refrigeration pipeline connection, wherein oil return pipe 52 is connected to the bottom of surge tank, and air inlet pipe 51 then connects
In the top of surge tank.For surge tank compared with gas-liquid separator, structure is relatively easy, and cost is lower.
Embodiment three, as shown in figure 4, on the basis of embodiment two, the air inlet pipe 51 is equipped with and is opened in refrigeration system
It is opened when dynamic, the solenoid valve 53 closed after refrigeration system is stable.In unit starting, solenoid valve is opened, electric after stable
Magnet valve is closed.Or solenoid valve can also be replaced with pressure opening and closing valve, when pressure reaches setting value, pressure switch is opened, system
A cryogen part enters surge tank, reduces pressure.Since surge tank is only used when shutting down startup, compared with embodiment two, by
Whether solenoid valve or pressure switch control surge tank access, and when can be to avoid refrigeration system normal operation, band be arranged in surge tank
The adverse effect come.
Example IV, as shown in figure 5, being with the difference of embodiment one, embodiment two, embodiment three, the buffering dress
It is the surge tank being integrated on micro-channel condenser to set 5, and surge tank is equipped with the outlet being connect with micro-channel condenser header 21
54 and oil return opening 52 and outlet 54 be set to surge tank tops, compressor discharge refrigerant by air inlet pipe 51 enter buffer
The refrigerant of tank, surge tank discharge enters micro-channel condenser 2 by import 54 again.The integrally disposed group for facilitating refrigeration system
Dress.
In addition to above preferred embodiment, the utility model also has other embodiments, and those skilled in the art can root
It is made various changes and modifications according to the utility model, without departing from the spirit of the utility model, the utility model should all be belonged to
Range as defined in the claims.
Claims (8)
1. a kind of refrigeration system for preventing instantaneous pressure excessively high, including be connected in turn in refrigeration pipeline compressor, microchannel
Condenser, expansion valve, evaporator, it is characterised in that：One is connected in refrigeration pipeline between compressor and micro-channel condenser
A buffer unit, when shutting down startup, high-pressure refrigerant is introduced into buffer unit into row buffering, then enters back into microchannel condensation
Device.
2. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 1, it is characterised in that：The buffering dress
It is set to gas-liquid separator, the air inlet pipe of the gas-liquid separator accesses compressor side refrigeration pipeline, and the gas-liquid separator goes out
Tracheae accesses micro-channel condenser side refrigeration pipeline.
3. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 2, it is characterised in that：The gas-liquid point
Volume from qi leel in device is at least 1.5 times of micro-channel condenser volume.
4. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 1, it is characterised in that：Compressor with
A surge tank in parallel on refrigeration pipeline between micro-channel condenser, the surge tank is equipped with to be connected with compressor side refrigeration pipeline
The air inlet pipe connect and the oil return pipe being connect with micro-channel condenser side refrigeration pipeline.
5. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 4, it is characterised in that：The air inlet pipe
It is equipped with and is opened when refrigeration system starts, the solenoid valve closed after refrigeration system is stable.
6. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 4, it is characterised in that：The air inlet pipe
It is equipped with the pressure opening and closing valve opened when pressure reaches setting value.
7. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 1, it is characterised in that：The buffering dress
It is set to the surge tank being integrated on micro-channel condenser, the refrigerant of compressor discharge enters surge tank, the system of surge tank discharge
Cryogen enters back into micro-channel condenser import, and the surge tank is additionally provided with the oil return opening being connect with micro-channel condenser.
8. a kind of refrigeration system for preventing instantaneous pressure excessively high according to claim 1 to 7 any one, feature exist
In：The evaporator is finned-tube evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721904085.1U CN208012133U (en) | 2017-12-29 | 2017-12-29 | A kind of refrigeration system for preventing instantaneous pressure excessively high |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721904085.1U CN208012133U (en) | 2017-12-29 | 2017-12-29 | A kind of refrigeration system for preventing instantaneous pressure excessively high |
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| Publication Number | Publication Date |
|---|---|
| CN208012133U true CN208012133U (en) | 2018-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721904085.1U Active CN208012133U (en) | 2017-12-29 | 2017-12-29 | A kind of refrigeration system for preventing instantaneous pressure excessively high |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865130A (en) * | 2021-08-24 | 2021-12-31 | 华为数字能源技术有限公司 | Air conditioning system |
-
2017
- 2017-12-29 CN CN201721904085.1U patent/CN208012133U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113865130A (en) * | 2021-08-24 | 2021-12-31 | 华为数字能源技术有限公司 | Air conditioning system |
| CN113865130B (en) * | 2021-08-24 | 2023-09-01 | 华为数字能源技术有限公司 | Air Conditioning System |
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