CN207622302U - A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator - Google Patents
A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator Download PDFInfo
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- CN207622302U CN207622302U CN201721021174.1U CN201721021174U CN207622302U CN 207622302 U CN207622302 U CN 207622302U CN 201721021174 U CN201721021174 U CN 201721021174U CN 207622302 U CN207622302 U CN 207622302U
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Abstract
It is used the utility model discloses a kind of Multi-compressor parallel type heat pump and prevents back liquid gas-liquid separator, it is characterised in that：Structure is by compressor return air pipe（1）, qi leel air inlet pipe（2）, oil return hole（3）, cavity（4）, system liquid supply pipe（5）Composition, wherein cavity（4）For circular cylindrical cavity, compressor return air pipe（1）Stretch into cavity（4）Interior part is designed for U-shaped bend pipe, each two compressor return air pipe（1）Between setting there are one qi leel air inlet pipe（2）, oil return hole（3）Positioned at compressor return air pipe（1）U-bend bottommost kernel of section line on；System liquid supply pipe（5）It is close to cavity（4）Bottom installation.System self heating function is provided, once there is back liquid, liquid coolant can be made to evaporate rapidly, compressor will not be damaged, moreover it is possible to so that a kind of Multi-compressor parallel type heat pump that unit capacity gets a promotion is used and prevent back liquid gas-liquid separator, novel in structural design, practical performance is strong, at low cost.
Description
Technical field
The utility model is related to air source heat pump heating unit field, specifically a kind of Multi-compressor parallel type heat pumps
With preventing back liquid gas-liquid separator.
Background technology
The gas-liquid separator of Multi-compressor parallel type heat pump currently on the market is mostly vertical, import one, exports one
Or it is multiple.Since gas-liquid separator is located at the low temperature part of system, to keep the temperature, once it is difficult evaporation to have liquid coolant to enter,
It causes compressor time liquid phenomenon multiple, greatly shortens the service life of compressor.
Retrieval finds the Chinese patent patent No.：2010201056143 to disclose air source heat pump multi-platform parallel connection compressor equal
Point vapour liquid separator, mainly solves the problems, such as to make that every compressor inspiratory capacity is uniform, recirculating oil quantity is impartial, however due to air inlet pipe
Quantity only there are one, flexibility is poor, is not suitable for the big system of capacity, also leans on lubricating cup oil return, but once return liquid in system, by
It is bigger than oil in the proportion of refrigerant, oil upper, refrigerant under, into lubricating cup be refrigerant rather than it is oily, refrigerant can be straight from oil return pipe
It taps into compressor, therefore is easier that compressor is caused to return liquid.
Utility model content
Purpose of the utility model is to overcome the deficiencies of the above prior art and provide system self heating functions, once go out
Liquid is now returned, liquid coolant can be made to evaporate rapidly, compressor will not be damaged, moreover it is possible to a kind of multiple pressure contracting for making unit capacity get a promotion
For machine parallel connection heat pump with liquid gas-liquid separator is prevented back, novel in structural design, practical performance is strong, at low cost.
The utility model is achieved by the following technical programs：
A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator, it is characterised in that：Structure is returned by compressor
Tracheae（1）, qi leel air inlet pipe（2）, oil return hole（3）, cavity（4）, system liquid supply pipe（5）Composition, wherein cavity（4）For cylinder
Cavity, compressor return air pipe（1）Stretch into cavity（4）Interior part is designed for U-shaped bend pipe, each two compressor return air pipe（1）It
Between setting there are one qi leel air inlet pipe（2）, oil return hole（3）Positioned at compressor return air pipe（1）U-bend bottommost kernel of section
On line；System liquid supply pipe（5）It is close to cavity（4）Bottom installation.
Preferably, the qi leel air inlet pipe（2）With evaporator（6）It is connected, system liquid supply pipe（5）Import with
Condenser（8）Connection, outlet pass through throttle valve（9）With evaporator（6）Connection.
Preferably, the oil return hole（3）A diameter of 2 millimeters, oil return hole（3）Upper installation settings has 30 mesh filter screens, uses
To filter out impurity.
Preferably, the compressor return air pipe（1）The cylindrical cavity of U-bend bottom tube wall distance（4）Bottom
20 millimeters of portion.
The utility model advantageous effect：
The utility model novel in structural design, practical performance is strong, at low cost；Structure design fully takes into account in system operation
Oil and refrigerant are in fluidized state in the process, and oil is on refrigerant, it is easier to it is taken away by gas coolant by oil return hole, therefore this
Utility model provides system self heating function can be such that liquid coolant evaporates rapidly once there is back liquid, will not damage compressor,
Unit capacity can also be made to get a promotion.
Description of the drawings
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, other drawings may also be obtained based on these drawings.
Fig. 1 is the utility model structure diagram；
Fig. 2 is the annexation figure of the utility model embodiment gas-liquid separator and other component.
Wherein description of symbols in figure：
1- compressor return air pipes；2- qi leel air inlet pipe；3- oil return holes；4- cavitys；5- system liquid supply pipes；6- evaporators；7-
Compressor；8- condensers；9- throttle valves.
Specific implementation mode
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.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1：A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator, it is characterised in that：Structure is
By compressor return air pipe（1）, qi leel air inlet pipe（2）, oil return hole（3）, cavity（4）, system liquid supply pipe（5）Composition, wherein cavity
（4）For circular cylindrical cavity, compressor return air pipe（1）Stretch into cavity（4）Interior part is designed for U-shaped bend pipe, each two compressor
Muffler（1）Between setting there are one qi leel air inlet pipe（2）, oil return hole（3）Positioned at compressor return air pipe（1）U-bend most
On the center line of bottom section；System liquid supply pipe（5）It is close to cavity（4）Bottom installation.
Preferably, the qi leel air inlet pipe（2）Be connected with evaporator, system liquid supply pipe（5）Import and condensation
Device（8）Connection, outlet pass through throttle valve（9）With evaporator（6）Connection.
Refrigerant is in evaporator（6）Interior heat exchange becomes gas from qi leel air inlet pipe by liquid（2）Into cavity（4）, due to cutting
Area becomes larger, and fluid flow rate is slack-off, realizes gas-liquid separation.Liquid coolant and refrigeration oil are fallen in cavity（4）Bottom, gas is by pressing
Contracting machine muffler（1）Top enter, return to compressor（7）.Work as cavity（4）Bottom freeze oil reaches certain amount, can be from returning
Oilhole（3）Into compressor return air pipe（1）, taken away by gas coolant.There are cavitys（4）The refrigerant and system liquid supply pipe of bottom
（5）In the refrigerant that flows there are the temperature difference, cavitys（4）Interior refrigerant is from system liquid supply pipe（5）After absorbing heat and gasifying in interior refrigerant
Into compressor（7）, prevent hydrops is cumulative from causing back liquid；System liquid supply pipe（5）Interior refrigerant releases heat and realizes supercooling,
The ability of unit can be improved.
The operation principle of the self-heating of the utility model is as follows：The condensed device of refrigerant is cooled to liquid in system liquid supply pipe
（5）Interior to throttling valve flow, the temperature that refrigerant liquid enters before this gas-liquid separator is about 45 DEG C, and passes through qi leel air inlet pipe
（2）Refrigerant air-liquid mixture temperature into this gas-liquid separator is generally below 5 DEG C, when refrigerant liquid falls on cavity（4）
Bottom, can be system liquid supply pipe（5）Submergence, since the two is there are 40 DEG C of temperature difference, the heat of tube refrigerant liquid can be transmitted to pipe
Outer refrigerant liquid, and make the latter's endothermic gasification, anti-non-return liquid are cumulative and from oil return opening（3）Into compressor, cause to press
Contracting machine damages.And system liquid supply pipe（5）Liquid as heat transmit and cool down, achieve the purpose that supercooling.
The foregoing description of the disclosed embodiments enables professional and technical personnel in the field to realize or use this practicality new
Type.Various modifications to these embodiments will be apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest range consistent with features of novelty.
Claims (4)
1. a kind of Multi-compressor parallel type heat pump, which is used, prevents back liquid gas-liquid separator, it is characterised in that：Structure is by compressor return air
Pipe（1）, qi leel air inlet pipe（2）, oil return hole（3）, cavity（4）, system liquid supply pipe（5）Composition, wherein cavity（4）For cylindrical cavity
Body, compressor return air pipe（1）Stretch into cavity（4）Interior part is designed for U-shaped bend pipe, each two compressor return air pipe（1）Between
There are one qi leel air inlet pipe for setting（2）, oil return hole（3）Positioned at compressor return air pipe（1）U-bend bottommost kernel of section line
On；System liquid supply pipe（5）It is close to cavity（4）Bottom installation.
2. a kind of Multi-compressor parallel type heat pump according to claim 1, which is used, prevents back liquid gas-liquid separator, it is characterised in that：
Qi leel air inlet pipe（2）Quantity and the quantity of evaporator match.
3. a kind of Multi-compressor parallel type heat pump according to claim 1, which is used, prevents back liquid gas-liquid separator, it is characterised in that：
Oil return hole（3）A diameter of 2 millimeters, oil return hole（3）Upper installation settings has 30 mesh filter screens, for filtering out impurity.
4. a kind of Multi-compressor parallel type heat pump according to claim 1, which is used, prevents back liquid gas-liquid separator, it is characterised in that：
Compressor return air pipe（1）The cylindrical cavity of U-bend bottom tube wall distance（4）20 millimeters of bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021174.1U CN207622302U (en) | 2018-04-24 | 2018-04-24 | A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721021174.1U CN207622302U (en) | 2018-04-24 | 2018-04-24 | A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator |
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| Publication Number | Publication Date |
|---|---|
| CN207622302U true CN207622302U (en) | 2018-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721021174.1U Active CN207622302U (en) | 2018-04-24 | 2018-04-24 | A kind of Multi-compressor parallel type heat pump is with preventing back liquid gas-liquid separator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567206A (en) * | 2019-10-12 | 2019-12-13 | 江苏星星家电科技有限公司 | Pipeline gas-liquid separator for low-temperature screw parallel unit |
-
2018
- 2018-04-24 CN CN201721021174.1U patent/CN207622302U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567206A (en) * | 2019-10-12 | 2019-12-13 | 江苏星星家电科技有限公司 | Pipeline gas-liquid separator for low-temperature screw parallel unit |
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