CN201954863U - Compressor system - Google Patents
Compressor system Download PDFInfo
- Publication number
- CN201954863U CN201954863U CN201120025351XU CN201120025351U CN201954863U CN 201954863 U CN201954863 U CN 201954863U CN 201120025351X U CN201120025351X U CN 201120025351XU CN 201120025351 U CN201120025351 U CN 201120025351U CN 201954863 U CN201954863 U CN 201954863U
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- compressor
- valve
- oil
- helical
- screw rod
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Abstract
The utility model discloses a compressor system, comprising a screw rod compressor, an oil separator, a condenser, a drying filter, a throttle valve, an evaporator, a check valve and an air suction filter which are sequentially connected with one another, wherein a circulating system is formed by connecting the air suction filter and the screw rod compressor; an oil loop is further connected between the oil separator and the screw rod compressor; the oil loop is provided with an oil filter; and the compressor system further comprises a control valve, one end of the control valve is connected at a discharge hole of the screw rod compressor, and the other end of the control valve is connected between the check valve and the air suction filter. The compressor system has the advantages that pressure balance is realized, and the unpowered inversion of the compressor can be prevented, so that damage risk of a compression mechanism of the compressor can be reduced, the service life of a unit is prolonged, the cost of the unit is lowered, and the reliability of the unit is improved.
Description
Technical field
The utility model relates to a kind of compressor assembly.
Background technology
When the air-conditioning unit operation, enter condenser through the high-temperature high-pressure refrigerant gas after the compressor compresses, be condensed into liquid refrigerant, after throttle mechanism throttling step-down, enter evaporimeter again, enter compressor once more through the refrigerant vapour of evaporation and heat-exchange low-temp low-pressure and compress, circulation forms closed circuit and so forth.But when stopping when motor is powered, motor just no longer applies driving force to compressor, and compressed refrigerant vapour can flow backwards, and when cold-producing medium expanded by discharge chambe again, the active force that cold-producing medium expands again drove Motorless compressor structure backward rotation.When the pressure between compressor discharge and the suction inlet equates or when equating, counter-rotating stops.Cause compressor reverse rotation owing to gases at high pressure flow backwards, this counter-rotating can produce bad noise, or causes that compressor fault false alarm, oil level cross lowly etc., and more serious meeting is burnt compressor.
Most air-conditioning machine set compressor all is equipped with exhaust check (non-return) valve and air-breathing check (non-return) valve in the industry at present; discharging (high pressure) side refrigerant vapour is because the obstruction of check (non-return) valve can not be back in the compressor when compressor emergency shutdown; the obstruction of check (non-return) valve sucks (low pressure) side refrigerant vapour owing to can not be discharged compressor; be that compressor can not expand again, the duration of unpowered reverse rotation reduces to the shortest or eliminates it like this.Yet, thereby exist certain crushing to influence the performance of unit at air-conditioning unit run duration owing to the existence of check (non-return) valve.Moreover, there is the risk of check (non-return) valve fault at air-conditioning unit run duration.
The utility model content
The purpose of this utility model is to provide a kind of compressor assembly, can effectively solve under the stopped status gases at high pressure and flow backwards and cause compressor reverse rotation, can produce bad noise, or cause the compressor fault false alarm, and oil level is crossed the low problem that waits.
In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of compressor assembly, comprise the helical-lobe compressor that connects successively, oil eliminator, condenser, device for drying and filtering, choke valve, evaporimeter, check (non-return) valve, air-breathing filter, air-breathing filter and helical-lobe compressor connect to form a circulatory system, also be connected with an oil return line between described oil eliminator and the helical-lobe compressor, described oil return line is provided with oil strainer, also comprise by-pass valve control, one end of described by-pass valve control is connected in the floss hole of helical-lobe compressor, and the other end of described by-pass valve control is connected between check (non-return) valve and the air-breathing filter.
Preferably, described by-pass valve control is a magnetic valve; Can conveniently realize automation control.
Compared with prior art, the utility model has the advantages that: realize pressure balance preventing unpowered reverse rotation in compressors, reduced the risk that compressor compresses mechanism damages, reduced the cost of unit the service life of having improved unit, improved unit reliability.
Description of drawings
Fig. 1 is the structural representation of a kind of compressor assembly of the utility model.
The specific embodiment
Consult the embodiment of Fig. 1 for a kind of compressor assembly of the utility model, a kind of compressor assembly, comprise the helical-lobe compressor 1 that connects successively, oil eliminator 2, condenser 3, device for drying and filtering 4, choke valve 5, evaporimeter 6, check (non-return) valve 7, air-breathing filter 8, air-breathing filter 8 connects to form a circulatory system with helical-lobe compressor 1, also be connected with an oil return line between described oil eliminator 2 and the helical-lobe compressor 1, described oil return line is provided with oil strainer 10, also comprise magnetic valve 9, one end of described magnetic valve 9 is connected in the floss hole of helical-lobe compressor 1, and the other end of described magnetic valve 9 is connected between check (non-return) valve 7 and the air-breathing filter 8.
When stopping in the power supply of the drive motors of helical-lobe compressor 1 or before; open magnetic valve 9; make the refrigerant vapour of the discharging oral-lateral of helical-lobe compressor 1 flow into helical-lobe compressor 1 suction side rapidly; because the discharging that the suction side air-flow has been blocked in the effect of suction side check (non-return) valve 7; thereby the pressure of suction side is risen rapidly; when the pressure of helical-lobe compressor 1 suction side is substantially equal to the pressure of helical-lobe compressor 1 floss hole; just eliminated possibility at the unpowered reverse rotation of stopped status lower compression mechanism; the pressure loss when having reduced unit operation, the refrigerating efficiency and the service life of having improved unit.
The above only is a specific embodiment of the utility model, but technical characterictic of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and variation of being done or modification all are encompassed among the claim of the present utility model.
Claims (2)
1. compressor assembly, comprise the helical-lobe compressor (1) that connects successively, oil eliminator (2), condenser (3), device for drying and filtering (4), choke valve (5), evaporimeter (6), check (non-return) valve (7), air-breathing filter (8), air-breathing filter (8) connects to form a circulatory system with helical-lobe compressor (1), also be connected with an oil return line between described oil eliminator (2) and the helical-lobe compressor (1), described oil return line is provided with oil strainer (10), it is characterized in that: also comprise by-pass valve control, one end of described by-pass valve control is connected in the floss hole of helical-lobe compressor (1), and the other end of described by-pass valve control is connected between check (non-return) valve (7) and the air-breathing filter (8).
2. a kind of compressor assembly as claimed in claim 1 is characterized in that: described by-pass valve control is magnetic valve (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120025351XU CN201954863U (en) | 2011-01-22 | 2011-01-22 | Compressor system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120025351XU CN201954863U (en) | 2011-01-22 | 2011-01-22 | Compressor system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201954863U true CN201954863U (en) | 2011-08-31 |
Family
ID=44498973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120025351XU Expired - Fee Related CN201954863U (en) | 2011-01-22 | 2011-01-22 | Compressor system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201954863U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338371A (en) * | 2013-07-29 | 2015-02-11 | 珠海格力电器股份有限公司 | Filter device, compressor and air conditioning unit |
| CN104422065A (en) * | 2013-08-23 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN105298841A (en) * | 2014-07-03 | 2016-02-03 | 纳博特斯克有限公司 | Air compression device |
-
2011
- 2011-01-22 CN CN201120025351XU patent/CN201954863U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104338371A (en) * | 2013-07-29 | 2015-02-11 | 珠海格力电器股份有限公司 | Filter device, compressor and air conditioning unit |
| CN104422065A (en) * | 2013-08-23 | 2015-03-18 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN104422065B (en) * | 2013-08-23 | 2018-02-09 | 珠海格力电器股份有限公司 | Air-conditioning system and its control method |
| CN105298841A (en) * | 2014-07-03 | 2016-02-03 | 纳博特斯克有限公司 | Air compression device |
| US10487830B2 (en) | 2014-07-03 | 2019-11-26 | Nabtesco Corporation | Air compression device to prevent backflow of compressed air toward compressor after the compressor is stopped |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20180122 |