CN205580047U - A economic ware for doublestage screw type refrigerating compres sor - Google Patents
A economic ware for doublestage screw type refrigerating compres sor Download PDFInfo
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- CN205580047U CN205580047U CN201620267347.7U CN201620267347U CN205580047U CN 205580047 U CN205580047 U CN 205580047U CN 201620267347 U CN201620267347 U CN 201620267347U CN 205580047 U CN205580047 U CN 205580047U
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Abstract
The utility model relates to a compressor technical field, concretely relates to an economic ware for doublestage screw type refrigerating compres sor, it includes fixes one -level barrel and second grade barrel together, be equipped with first measuring aperture, first safe valve port, first return -air mouth, first liquid outlet and first inlet on the one -level barrel, there are second measuring aperture, second safety valve port, second return -air mouth, second liquid outlet and second inlet on the second grade barrel. The utility model discloses an economic ware for doublestage screw type refrigerating compres sor, an economic ware are equipped with two return -air mouths, can be to the tonifying qi simultaneously of compressor difference positions, economic ware part simplification in the design of messenger refrigerating system. Secondary subcooling, improvement compressor's refrigeration coefficient of performance is carried out the refrigerant.
Description
Technical field
This utility model relates to technical field of refrigeration compressors, is specifically related to a kind of for dual-stage screw refrigerating
The economizer of compressor.
Background technology
Helical-lobe compressor work is that the high speed rotating by motor drives the rotation of screw rod to carry out refrigerant compression, by
In the feature (the volume reduction of compression chamber is moved along rotor axial) of the compression process of helical-lobe compressor, just may be used
To have completed and the gas pressure place of having increased slightly can form an additional air-breathing in compression chamber in expiratory phase
Mouthful.Therefore, this is it is possible to input an adscititious gases flow, namely while not affecting aspirated volume
Additional cold loop of crossing can be joined in refrigeration system.And it is bigger supercool that cold-producing medium can be allowed to have, this
Sample can be greatly improved coefficient of performance of refrigerating.An existing economizer can only carry out QI invigorating to a gas supplementing opening
With cold-producing medium is carried out the most supercool, if need that compressor many places gas supplementing opening is carried out QI invigorating, need use
Multiple stage economizer, makes complex system.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of to gas supplementing opening on compressor two simultaneously
Carry out the economizer for dual-stage screw refrigerating compressor of QI invigorating.
In order to solve above-mentioned technical problem, the technical solution adopted in the utility model is: provide one for double
The economizer of level screw type refrigerating compressor, including the one-level cylinder being fixed together and two grades of cylinders, described
One-level cylinder is provided with the first measured hole, the first relief valve port, the first gas returning port, the first liquid outlet and first
Inlet；Described two grades of cylinders be provided with the second measured hole, the second relief valve port, the second gas returning port, second
Liquid outlet and the second inlet.
Further, above-mentioned in the economizer of dual-stage screw refrigerating compressor, described first return-air
Being provided with stop valve and constant pressure valve between mouth and the gas supplementing opening of double-stage compressor, described second gas returning port is with double
It is provided with stop valve and constant pressure valve between the gas supplementing opening of level compressor.
Further, above-mentioned in the economizer of dual-stage screw refrigerating compressor, described one-level cylinder
It is fixed by welding on same straight line with two grades of cylinders.
Further, above-mentioned in the economizer of dual-stage screw refrigerating compressor, described first measures
Hole is connected with liquid level emasuring device, and described second measured hole is connected with liquid level emasuring device.
The beneficial effects of the utility model are: of the present utility model for dual-stage screw refrigerating compressor
Economizer, an economizer is provided with two gas returning ports, it is possible to compressor diverse location QI invigorating simultaneously, make system
In cooling system design, economizer sections is simplified.Cold-producing medium is carried out secondary supercool, improve refrigeration compressor
Coefficient of performance of refrigerating.
Accompanying drawing explanation
Fig. 1 is the economy for dual-stage screw refrigerating compressor in detailed description of the invention of the present utility model
The structural representation of device；
Label declaration:
1, one-level cylinder；11, the first measured hole；12, the first relief valve port；13, the first gas returning port；
14 first liquid outlets；15, the first inlet；
2, two grades of cylinders；21, the second measured hole；22, the second relief valve port；23, the second gas returning port；
24 second liquid outlets；25, the second inlet.
Detailed description of the invention
By describing technology contents of the present utility model in detail, being realized purpose and effect, below in conjunction with embodiment party
Formula also coordinates accompanying drawing to be explained.
The design of this utility model most critical is: of the present utility model for dual-stage screw refrigerating compressor
Economizer, an economizer is provided with two gas returning ports, it is possible to compressor diverse location simultaneously QI invigorating, make
In refrigerant system design, economizer sections is simplified.
Refer to Fig. 1, a kind of economizer for dual-stage screw refrigerating compressor, including be fixed together
One-level cylinder 1 and two grades of cylinders 2, described one-level cylinder 1 is provided with first measured hole the 11, first relief valve
Mouth the 12, first gas returning port the 13, first liquid outlet 14 and the first inlet 15, described two grades of cylinders 2 have
Second measured hole the 21, second relief valve port the 22, second gas returning port the 23, second liquid outlet 24 and the second feed liquor
Mouth 25.
Above-mentioned in the economizer of dual-stage screw refrigerating compressor, described first inlet and two-stage screw
The cold-producing medium outfan of the condenser of formula refrigeration compressor set connects；Described first liquid outlet and the second inlet
Connect；Described first gas returning port is connected with the high pressure section gas supplementing opening of dual-stage screw refrigerating compressor；Described
One measures mouth is connected with liquid level emasuring device；Described first relief valve port is connected with relief valve；Described second goes out
Liquid mouth is connected with the cold-producing medium input of the vaporizer of dual-stage screw refrigerating compressor bank；Described second return-air
Mouth is connected with the interlude gas supplementing opening of dual-stage screw refrigerating compressor；Described second measures mouth and level gauging
Device connects；Described second relief valve port is connected with relief valve.
In a specific embodiment of the present utility model, above-mentioned for dual-stage screw refrigerating compressor
In economizer, between described first gas returning port and the gas supplementing opening of double-stage compressor, it is provided with stop valve and constant voltage
Valve, is provided with stop valve and constant pressure valve between described second gas returning port and the gas supplementing opening of double-stage compressor.Institute
State one-level cylinder and two grades of cylinders are fixed by welding on same straight line.Described first measured hole is surveyed with liquid level
Amount device connects, and described second measured hole is connected with liquid level emasuring device.
The work process of the economizer for dual-stage screw refrigerating compressor of the present utility model: two-stage screw
Formula refrigeration compressor, by sucking cold-producing medium from vaporizer, after this cold-producing medium is even compressed, enters condenser
In, it being condensed into middle temperature highly pressurised liquid, middle temperature highly pressurised liquid is by entering after assistant throttle component decrease temperature and pressure
The one-level cylinder heat exchange evaporation of economizer, part of refrigerant evaporation becomes gas, another part cold-producing medium quilt
The most supercool.Refrigerant gas enters the high pressure section gas supplementing opening of screw type refrigerating compressor, the most supercool liquid
Body evaporates by entering two grades of cylinder heat exchange of economizer after assistant throttle component decrease temperature and pressure, part refrigeration
Agent evaporation becomes gas, and another part cold-producing medium is supercool by secondary.Refrigerant gas enters screw type cold pressure
The interlude gas supplementing opening of contracting machine, the refrigerant liquid after secondary is supercool enters vaporizer after restricting element,
Owing to entering economizer refrigerant liquid after secondary is supercool out from condenser middle temperature highly pressurised liquid out
Temperature can decline tens of degree, thus is remarkably improved refrigerating capacity of the present utility model and coefficient of refrigerating performance.
In sum, the economizer for dual-stage screw refrigerating compressor that this utility model provides, one
Economizer is provided with two gas returning ports, it is possible to compressor diverse location QI invigorating simultaneously, make in refrigerant system design
Economizer sections is simplified.Supercool in cold-producing medium being carried out secondary, improve coefficient of performance of refrigerating.
The foregoing is only embodiment of the present utility model, not thereby limit the scope of the claims of the present utility model,
Every equivalents utilizing this utility model description and accompanying drawing content to be made, or be directly or indirectly used in
Relevant technical field, is the most in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. the economizer for dual-stage screw refrigerating compressor, it is characterised in that include being fixed on
Rise one-level cylinder and two grades of cylinders, described one-level cylinder be provided with the first measured hole, the first relief valve port,
First gas returning port, the first liquid outlet and the first inlet；Described two grades of cylinders be provided with the second measured hole,
Two relief valve port, the second gas returning port, the second liquid outlet and the second inlet.
Economizer for dual-stage screw refrigerating compressor the most according to claim 1, its feature exists
In, it is provided with stop valve and constant pressure valve, institute between described first gas returning port and the gas supplementing opening of double-stage compressor
State and between the second gas returning port and the gas supplementing opening of double-stage compressor, be provided with stop valve and constant pressure valve.
Economizer for dual-stage screw refrigerating compressor the most according to claim 1, its feature exists
In, described one-level cylinder and two grades of cylinders are fixed by welding on same straight line.
Economizer for dual-stage screw refrigerating compressor the most according to claim 1, its feature exists
In, described first measured hole is connected with liquid level emasuring device, and described second measured hole is with liquid level emasuring device even
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620267347.7U CN205580047U (en) | 2016-04-01 | 2016-04-01 | A economic ware for doublestage screw type refrigerating compres sor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620267347.7U CN205580047U (en) | 2016-04-01 | 2016-04-01 | A economic ware for doublestage screw type refrigerating compres sor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205580047U true CN205580047U (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620267347.7U Active CN205580047U (en) | 2016-04-01 | 2016-04-01 | A economic ware for doublestage screw type refrigerating compres sor |
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| CN (1) | CN205580047U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017677A1 (en) * | 2019-07-29 | 2021-02-04 | 珠海格力电器股份有限公司 | Compressor and air conditioning system |
-
2016
- 2016-04-01 CN CN201620267347.7U patent/CN205580047U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021017677A1 (en) * | 2019-07-29 | 2021-02-04 | 珠海格力电器股份有限公司 | Compressor and air conditioning system |
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| GR01 | Patent grant |