CN203627330U - Anti-surge device of centrifugal compressor - Google Patents
Anti-surge device of centrifugal compressor Download PDFInfo
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- CN203627330U CN203627330U CN201320550242.9U CN201320550242U CN203627330U CN 203627330 U CN203627330 U CN 203627330U CN 201320550242 U CN201320550242 U CN 201320550242U CN 203627330 U CN203627330 U CN 203627330U
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- compressor
- pressure
- centrifugal compressor
- surge
- controller
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Abstract
The utility model discloses an anti-surge device of a centrifugal compressor. The anti-surge device comprises the compressor, a condenser, a throttle valve and an evaporator which are sequentially and serially connected with one another by pipelines to form a circuit. A branch is arranged on the circuit and is connected with the compressor in parallel, and a switch is arranged on the branch. The switch is an electromagnetic valve, and can be opened and closed under the control of an external controller. The anti-surge device has the advantages that pressure testers are arranged at two ends of the compressor, the electromagnetic valve is opened to relieve the pressure when pressure difference between a high-pressure end and a low-pressure end of the compressor exceeds a preset value of the controller, and is closed when the pressure difference is lower than the preset value, accordingly, the pressure difference between the high pressure and the low pressure of the compressor is assuredly within a certain range, and surge of the centrifugal compressor can be effectively prevented.
Description
Technical field
The utility model relates to refrigerating field, is specifically related to centrifugal compressor anti-surge installation.
Background technique
Along with the fast development of China's economy, energy availability and demand contradiction is more and more outstanding, and the pressure that environment bears is also more and more heavier, and the centrifugal unit of high energy efficiency ratio arises at the historic moment thereupon and on market, popularized gradually.Current centrifugal unit is afraid of that the problem occurring is exactly after unit actual operating mode and Theoretical Design operating mode depart from most, centrifugal compressor generation surging phenomenon.
Summary of the invention
For existing centrifugal unit in the market, surging phenomenon easily occurs, the utility model provides a kind of centrifugal compressor anti-surge installation, so that the surging phenomenon of centrifugal compressor is avoided.
Centrifugal compressor anti-surge installation, comprises the compressor, condenser, throttle valve and the vaporizer that are formed successively loop by pipeline series connection; Described loop is provided with a branch road and compressor parallel, and described branch road is provided with switch.Described compressor two ends are provided with pressure detector.
Described switch is solenoid valve.
Outside described loop, be equipped with controller, described controller and pressure detector, solenoid valve are electrically connected.
In the utility model, compressor two ends, it is the real-time monitored pipeline fluid pressure of the set pressure detector of high voltage terminal and low voltage terminal, storage threshold pressure difference in controller, in the time that the pressure difference of compressor high-voltage end and low voltage terminal exceedes predefined value, solenoid valve is opened pressure release, pressure difference is during lower than predefined value, closed electromagnetic valve, thus Compressor Group high and low pressure pressure difference guaranteed within the specific limits, effectively prevent that centrifugal unit from producing surge.Compared with prior art, the utility model can allow centrifugal unit operation operating mode deviation theory design conditions operation, and surging phenomenon can not occur.
Accompanying drawing explanation
Fig. 1 is installation of the present utility model and Placement schematic diagram.
In figure, be denoted as: 1-compressor, 2-condenser, 3-throttle valve, 4-vaporizer, 5-solenoid valve, 6-pressure detector.
Embodiment
For the ease of those skilled in the art's understanding, below in conjunction with accompanying drawing, the utility model will be further described.
As shown in Figure 1, centrifugal compressor anti-surge installation, comprises the compressor 1, condenser 2, throttle valve 3 and the vaporizer 4 that are formed successively loop by pipeline series connection, and refrigerant flows to as shown in the direction of arrow; It is in parallel with compressor 1 that described loop is provided with a branch road, and described branch road is provided with switch.Described compressor 1 two ends are provided with pressure detector 6.
Described switch is solenoid valve 5.
Outside described loop, be equipped with controller, described controller and pressure detector 6, solenoid valve 5 are electrically connected.
The utility model is in the time of work, detected in real time the hydrodynamic pressure of compressor 1 two ends pipeline by pressure detector 6, and force value is sent to processor, it is poor that processor is analyzed pressure at two ends, and when the pressure difference of compressor 1 high voltage terminal and low voltage terminal is during higher than the predetermined threshold value of controller storage, controller transmission instruction is to solenoid valve 5, solenoid valve 5 is opened pressure release, when pressure release to pressure difference value is less than the predetermined threshold value of controller storage, controller sends instruction to solenoid valve 5, and solenoid valve 5 cuts out.Design main points of the present utility model are that a part of high pressure refrigerant fluid is bypassed to low voltage terminal by pipeline and the solenoid valve of anti-surge installation, thereby reduce, centrifugal compressor is inhaled, the pressure difference of exhaust end, thereby effectively prevents centrifugal compressor units generation surge.
Above-described embodiment is preferably implementation of the utility model, and without departing from the concept of the premise utility, the replacement of just the utility model being made direct displacement or being equal to, within all belonging to protection domain of the present utility model.
Claims (3)
1. centrifugal compressor anti-surge installation, is characterized in that: comprise the compressor (1), condenser (2), throttle valve (3) and the vaporizer (4) that are formed successively loop by pipeline series connection; It is in parallel with compressor (1) that described loop is provided with a branch road, and described branch road is provided with switch; Described compressor (1) two ends are provided with pressure detector (6).
2. centrifugal compressor anti-surge installation according to claim 1, is characterized in that: described switch is solenoid valve (5).
3. centrifugal compressor anti-surge installation according to claim 2, is characterized in that: outside described loop, be equipped with controller, described controller and pressure detector (6), solenoid valve (5) are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550242.9U CN203627330U (en) | 2013-09-05 | 2013-09-05 | Anti-surge device of centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320550242.9U CN203627330U (en) | 2013-09-05 | 2013-09-05 | Anti-surge device of centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203627330U true CN203627330U (en) | 2014-06-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320550242.9U Expired - Lifetime CN203627330U (en) | 2013-09-05 | 2013-09-05 | Anti-surge device of centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203627330U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567054A (en) * | 2014-12-26 | 2015-04-29 | 珠海格力电器股份有限公司 | Anti-surge system of centrifugal refrigerating unit |
| CN104696192A (en) * | 2015-02-05 | 2015-06-10 | 中石化上海工程有限公司 | Method for preventing compressor from surging |
| CN109827359A (en) * | 2018-11-30 | 2019-05-31 | 珠海格力电器股份有限公司 | Refrigerating equipment |
| US10480521B2 (en) | 2016-04-01 | 2019-11-19 | Fisher-Rosemount Systems, Inc. | Methods and apparatus for detecting and preventing compressor surge |
| CN112556220A (en) * | 2020-12-07 | 2021-03-26 | 珠海格力电器股份有限公司 | Unit and operation control method thereof |
-
2013
- 2013-09-05 CN CN201320550242.9U patent/CN203627330U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104567054A (en) * | 2014-12-26 | 2015-04-29 | 珠海格力电器股份有限公司 | Anti-surge system of centrifugal refrigerating unit |
| CN104696192A (en) * | 2015-02-05 | 2015-06-10 | 中石化上海工程有限公司 | Method for preventing compressor from surging |
| US10480521B2 (en) | 2016-04-01 | 2019-11-19 | Fisher-Rosemount Systems, Inc. | Methods and apparatus for detecting and preventing compressor surge |
| CN109827359A (en) * | 2018-11-30 | 2019-05-31 | 珠海格力电器股份有限公司 | Refrigerating equipment |
| CN112556220A (en) * | 2020-12-07 | 2021-03-26 | 珠海格力电器股份有限公司 | Unit and operation control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510530, No. four, No. 1, North Orchard, East Zone, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee after: GUANGZHOU HSTARS REFRIGERATION EQUIPMENT GROUP CO.,LTD. Address before: 510530, No. four, No. 1, North Orchard, East Zone, Guangzhou economic and Technological Development Zone, Guangzhou, Guangdong Patentee before: Stars (Guangzhou) Refrigerating Equipment Manufacturing Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140604 |
|
| CX01 | Expiry of patent term |