CN201588788U - Exhaust passage structure for intermediate backpressure two-stage rotor compressor - Google Patents
Exhaust passage structure for intermediate backpressure two-stage rotor compressor Download PDFInfo
- Publication number
- CN201588788U CN201588788U CN2009202864898U CN200920286489U CN201588788U CN 201588788 U CN201588788 U CN 201588788U CN 2009202864898 U CN2009202864898 U CN 2009202864898U CN 200920286489 U CN200920286489 U CN 200920286489U CN 201588788 U CN201588788 U CN 201588788U
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- stage rotor
- heat exchanger
- level
- compression
- exhaust passage
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Abstract
The utility model relates to an exhaust passage structure for an intermediate backpressure two-stage rotor compressor, which comprises a heat exchanger. The heat exchanger is arranged outside a compressor casing and has one end thereof connected with a first-stage exhaust outlet and the other end thereof connected with a second-stage suction inlet. Compared with the prior art, the exhaust passage structure enhances the cooling effect of a motor and improves the efficiency and reliability of the motor.
Description
Technical field
The utility model relates to a kind of compressor air-discharging structure, especially relates to a kind of middle back pressure twin-stage rotor-type compressor exhaust passageway structure.
Background technique
Existing rotor-type compressor is the high back pressure structure, by the air-breathing refrigerant of liquid-storage container after cylinder compression, the refrigerant of High Temperature High Pressure cools off motor outside the final vacuum compressor body, but, face the problem that the too high using scope of electric machine temperature rise is restricted for heat pump water heater high pressure ratio high load application.
If adopt back-pressure structure in the twin-stage compression, utilize one-level exhaust medium temperature and medium pressure gas-cooled electric machine, the electric machine temperature rise problem is solved preferably, and the refrigerant behind the cooling motor compresses the back once more and discharges compression.Adopting this structure to bring an other problem is that temperature further raises behind the refrigerant cooling motor of one-level compression, and compression horsepower increases when secondary compress, the reduction compression efficiency.
Summary of the invention
The purpose of this utility model is exactly to provide a kind of increase motor cooling effect for the defective that overcomes above-mentioned prior art existence, improves the middle back pressure twin-stage rotor-type compressor exhaust passageway structure of electric efficiency and reliability.
The purpose of this utility model can be achieved through the following technical solutions: back pressure twin-stage rotor-type compressor exhaust passageway structure in a kind of, it is characterized in that, this structure comprises heat exchanger, it is external that this heat exchanger is arranged on compression case, the one end connects first order exhaust outlet, and the other end connects the air-breathing inlet in the second level.
Described first order exhaust outlet is arranged on bottom silencer or the lower cylinder.
The air-breathing inlet in the described second level is arranged on compressor top.
Compared with prior art, the utility model is guided to the one-level pressurized gas outside the compression body, between air-breathing, install an Intermediate Heat Exchanger additional in first order exhaust and the second level, specifically be meant in first order exhaust by the structure outside bottom silencer or the lower cylinder discharge compression shell, the medium temperature and medium pressure refrigerant that first order compression is discharged cools off that to enter secondary air-breathing, thereby improve second level compression efficiency, increase the motor cooling effect, improve electric efficiency and reliability.
Description of drawings
Fig. 1 is the bipolar rotor-type compressor one-level of a back pressure bottom silencer exhaust channel structure schematic representation in the utility model;
Fig. 2 is a cylinder cap exhaust channel structure schematic representation under the bipolar rotor-type compressor one-level of back pressure in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
As shown in Figure 1, back pressure twin-stage rotor-type compressor exhaust passageway structure in a kind of, this structure comprises heat exchanger 1, it is external that this heat exchanger is arranged on compression case, the one end connects first order exhaust outlet 2, this first order exhaust outlet 2 is arranged on the bottom silencer, and the other end connects the air-breathing inlet 3 in the second level.Compressor is air-breathing from one-level suction tude 4 by liquid-storage container, refrigerant is after the compression of first order cylinder, connect bottom silencer by pipeline and guide to outside, enter heat exchanger 1, in heat exchanger 1, refrigerant is cooled off, cooled refrigerant cools off motor 5 from the housing that enters of the air-breathing inlet 3 in the compressor top second level, enters then to finish whole compression process after the secondary air aspiration cavity compresses, and discharges from relief opening 6.
Reduce by the medium temperature and medium pressure refrigerant temperature after the cools down, refrigerant further reduces motor temperature after entering compressor housing, the reliability that motor temperature reduces the organic insulation material increases, and the copper loss of motor reduces, and efficiency of motor and reliability all are improved.Lower through the laggard gas temperature of going into the secondary air aspiration cavity of supercooling, the compression work that needs in compression process is less, has improved compression efficiency.
As shown in Figure 2, back pressure twin-stage rotor-type compressor exhaust passageway structure in a kind of, this structure comprises heat exchanger 1 ', it is external that this heat exchanger 1 ' is arranged on compression case, the one end connects first order exhaust outlet 2 ', this first order exhaust outlet is arranged on down on the cylinder cap, and the other end connects the air-breathing inlet 3 ' in the second level, and the air-breathing inlet in the second level is arranged on compressor top.
Compressor is air-breathing from one-level suction tude 4 ' by liquid-storage container, refrigerant is after the compression of first order cylinder, connect bottom silencer by pipeline and guide to outside, enter heat exchanger 1 ', in heat exchanger 1 ', refrigerant is cooled off, cooled refrigerant cools off motor 5 ' from the housing that enters of the air-breathing inlet 3 ' in the compressor top second level, enters then to finish whole compression process after the secondary air aspiration cavity compresses, and discharges from relief opening 6 '.
Claims (3)
1. back pressure twin-stage rotor-type compressor exhaust passageway structure in a kind is characterized in that this structure comprises heat exchanger, and it is external that this heat exchanger is arranged on compression case, and the one end connects first order exhaust outlet, and the other end connects the air-breathing inlet in the second level.
2. a kind of middle back pressure twin-stage rotor-type compressor exhaust passageway structure according to claim 1 is characterized in that described first order exhaust outlet is arranged on bottom silencer or the lower cylinder.
3. a kind of middle back pressure twin-stage rotor-type compressor exhaust passageway structure according to claim 1 is characterized in that the air-breathing inlet in the described second level is arranged on compressor top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202864898U CN201588788U (en) | 2009-12-28 | 2009-12-28 | Exhaust passage structure for intermediate backpressure two-stage rotor compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202864898U CN201588788U (en) | 2009-12-28 | 2009-12-28 | Exhaust passage structure for intermediate backpressure two-stage rotor compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588788U true CN201588788U (en) | 2010-09-22 |
Family
ID=42748566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202864898U Expired - Lifetime CN201588788U (en) | 2009-12-28 | 2009-12-28 | Exhaust passage structure for intermediate backpressure two-stage rotor compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588788U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678572A (en) * | 2011-03-16 | 2012-09-19 | 珠海格力电器股份有限公司 | Low back pressure compressor for air conditioner and its motor precooling |
| CN105626539A (en) * | 2015-12-21 | 2016-06-01 | 珠海格力电器股份有限公司 | Refrigeration equipment and compressor thereof |
| CN111255694A (en) * | 2018-11-30 | 2020-06-09 | 南昌海立电器有限公司 | Rotary compressor |
| CN111256380A (en) * | 2018-11-30 | 2020-06-09 | 南昌海立电器有限公司 | Air conditioning system |
-
2009
- 2009-12-28 CN CN2009202864898U patent/CN201588788U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678572A (en) * | 2011-03-16 | 2012-09-19 | 珠海格力电器股份有限公司 | Low back pressure compressor for air conditioner and its motor precooling |
| CN102678572B (en) * | 2011-03-16 | 2015-02-18 | 珠海格力电器股份有限公司 | Low back pressure compressor for air conditioner and its motor precooling |
| CN105626539A (en) * | 2015-12-21 | 2016-06-01 | 珠海格力电器股份有限公司 | Refrigeration equipment and compressor thereof |
| CN105626539B (en) * | 2015-12-21 | 2019-01-15 | 珠海格力电器股份有限公司 | Refrigeration equipment and compressor thereof |
| CN111255694A (en) * | 2018-11-30 | 2020-06-09 | 南昌海立电器有限公司 | Rotary compressor |
| CN111256380A (en) * | 2018-11-30 | 2020-06-09 | 南昌海立电器有限公司 | Air conditioning system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100922 |