CN112412769B - Compressor noise vibration testing system and method - Google Patents
Compressor noise vibration testing system and method Download PDFInfo
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- CN112412769B CN112412769B CN202011373270.9A CN202011373270A CN112412769B CN 112412769 B CN112412769 B CN 112412769B CN 202011373270 A CN202011373270 A CN 202011373270A CN 112412769 B CN112412769 B CN 112412769B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B51/00—Testing machines, pumps, or pumping installations
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Abstract
The utility model relates to a compressor noise vibration test system and method belongs to compressor technical field, the system includes suction pressure jar and discharge pressure jar parallelly connected pressure regulation compressor and the compressor that awaits measuring between pressure discharge jar and the discharge pressure jar, be linked together between suction pressure jar and the discharge pressure jar and be equipped with the pressure balance valve between and, connect refrigerant filling valve on the suction pressure jar, be equipped with the stop valve on the pipeline that compressor that awaits measuring is connected with suction pressure jar and discharge pressure jar. The system is simple to operate and low in cost, can quickly test the noise vibration of the compressor, greatly shortens the development period of the compressor and reduces the design cost of the compressor by comparing the noise vibration effects under different design schemes.
Description
Technical Field
The disclosure belongs to the technical field of compressors, and particularly relates to a system and a method for testing noise and vibration of a compressor.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
Along with the improvement of the life quality of a user, the experience requirement on the refrigerator is higher and higher, the sound quality of the refrigerator is required to be better and better, the compressor is used as a core component of the refrigerator, the noise characteristic of the compressor directly determines the overall level of the refrigerator, and therefore, each compressor manufacturer continuously optimizes and improves the noise and develops a series of scheme tests.
The inventor finds that the current compressor noise test is carried out according to the regulations in GB/T9098-2008, the required test environment meets GB/T4214.1-2000, the cost of establishing a standard anechoic chamber is very high, the recommended system is difficult to operate in a complex way, 2-3 hours are required for testing one R600a compressor, the information on the market is very variable, once any undesirable noise problem appears in the market, a solution needs to be taken out quickly, and at the moment, a designer often takes out a plurality of solutions to verify, one is 3h for verifying, if 5 are provided, each solution prepares 7 prototypes for explaining the validity of data, and 35 groups of data need to be tested for 105 h.
Disclosure of Invention
Aiming at the technical problems in the prior art, the system and the method for testing the noise vibration of the compressor are simple to operate and low in cost, the noise vibration of the compressor can be tested quickly, the noise vibration effect under different design schemes is compared, the development period of the compressor is greatly shortened, and the design cost of the compressor is reduced.
The utility model discloses an at least embodiment has provided a compressor noise vibration test system, the system includes suction pressure jar and discharge pressure jar parallelly connected pressure regulation compressor and the compressor that awaits measuring between suction pressure jar and the discharge pressure jar, be linked together between suction pressure jar and the discharge pressure jar and be equipped with the pressure balance valve between and, connect the refrigerant on the suction pressure jar and fill the filling valve, be equipped with the stop valve on the pipeline that the compressor that awaits measuring is connected with suction pressure jar and discharge pressure jar.
And furthermore, a buffer pressure tank is arranged between the compressor to be tested and the exhaust pressure tank, and a stop valve is also arranged between the buffer pressure tank and the exhaust pressure tank.
Furthermore, pressure gauges are arranged on the air suction pressure tank, the air exhaust pressure tank and the buffer pressure tank.
Furthermore, a stop valve is arranged on a pipeline of the pressure regulating compressor communicated with the suction pressure tank and the exhaust pressure tank.
Further, a pressure relief valve is connected to the bottom of the exhaust pressure tank.
Further, the displacement of the pressure regulating compressor is larger than that of the compressor to be measured.
Further, the volumes of the exhaust pressure tank and the suction pressure tank are respectively larger than the volume of the compressor to be measured.
At least one embodiment of the present disclosure further provides a testing method of any one of the above noise and vibration testing systems, including the following steps:
closing a refrigerant filling valve on the suction pressure tank and a pressure relief valve on the exhaust pressure tank, and stopping vacuumizing the whole test system after the vacuum degree of the test requirement is reached;
closing a stop valve and a pressure balance valve between the compressor to be tested and the suction pressure tank and the exhaust pressure tank; opening a refrigerant filling valve, injecting refrigerant, starting a pressure regulating compressor, enabling the pressure in a suction pressure tank and a discharge pressure tank to reach the working condition required by a test by regulating the filling amount of the refrigerant and the opening degree of a pressure balance valve, then closing the pressure regulating compressor and the pressure balance valve, and determining that a stop valve between a pressure regulating compression and suction pressure tank and the discharge pressure tank is in a closed state;
and opening a stop valve between the compressor to be tested and the suction pressure tank and between the compressor to be tested and the exhaust pressure tank, performing noise vibration test on the compressor to be tested, replacing the second compressor to be tested after the first compressor to be tested is tested, vacuumizing again, and opening the stop valve again for testing.
Further, after the pressure values of the suction pressure tank and the exhaust pressure tank cannot meet the required test working condition, closing a stop valve between the compressor to be tested and the suction pressure tank and the exhaust pressure tank, starting the pressure regulating compressor, and adjusting the opening of the pressure balance valve to enable the pressure of the suction pressure tank and the pressure of the exhaust pressure tank to reach the required working condition.
Further, when the pressure of the exhaust pressure tank exceeds the preset pressure, the pressure of the exhaust pressure tank is reduced through a pressure relief valve on the exhaust pressure tank.
The beneficial effects of this disclosure are as follows:
(1) compared with the traditional compressor noise test according to the regulations in GB/T9098-2008, the test system disclosed by the invention only needs to spend the time for replacing the press and vacuumizing, the efficiency is greatly improved, the time cost and the equipment cost are solved, the development period of the compressor is shortened, and the market share is won.
(2) This disclosed test system actually includes pressure maintenance system circulation and test system circulation, circulates to the model machine that awaits measuring through test system, and when suction pressure jar and discharge pressure jar can not satisfy the test condition among the test system, carry out pressure regulating through refrigerant filling valve and pressure balance valve on the pressure regulating compressor cooperation suction pressure jar and to suction pressure jar and discharge pressure jar and satisfy the test condition once more, improved the efficiency of test.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and are not to limit the disclosure.
Fig. 1 is a schematic diagram of a simple and fast noise vibration testing system according to an embodiment of the present disclosure.
In the figure: 1. scheme model machine that awaits measuring, 2, buffer pressure jar, 3, exhaust pressure jar, 4, pressure regulation compressor, 5, suction pressure jar, 6, buffer pressure jar manometer, 7, exhaust tank manometer, 8, suction pressure jar manometer, 9, first stop valve, 10, second stop valve, 11, third stop valve, 12, fourth stop valve, 13, fifth stop valve, 14, refrigerant filling valve, 15, relief valve, 16, pressure balance valve
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
As shown in fig. 1, the system for testing simple and rapid noise vibration disclosed in the embodiment of the present disclosure mainly includes a sample solution 1 to be tested, a buffer pressure tank 2, an exhaust pressure tank 3, a pressure regulating compressor 4, and an intake pressure tank 5.
The scheme model machine 1 to be tested and the pressure regulating compressor 4 are connected in parallel between the exhaust pressure tank 3 and the suction pressure tank 5 to form a loop system, the exhaust pressure tank 3 and the suction pressure tank 5 are communicated through a pipeline, and the pipeline is provided with a pressure balance valve 16 to control the on-off of the pipeline and the flow rate, so that the fine adjustment between the suction pressure tank and the exhaust pressure tank is realized.
Further, the suction pressure tank 5 and the exhaust pressure tank 3 are respectively provided with a suction tank pressure gauge 8 and an exhaust tank pressure gauge 7 for detecting the gas pressure in the tanks, the suction pressure tank 5 is also connected with a refrigerant filling valve 14, and the refrigerant is injected into the suction pressure tank 5 by controlling the valve.
And a buffer pressure tank 2 is also arranged between the scheme sample machine to be tested 1 and the exhaust pressure tank 3, so that the sample machine to be tested can be started at a balanced pressure, and a buffer tank pressure gauge 6 is arranged on the buffer pressure tank 2.
The lower end of the exhaust pressure tank 3 is provided with a pressure relief valve 15, so that the pressure relief valve 15 can be opened immediately to quickly relieve pressure once the pressure exceeds the allowable pressure of the pressure tank.
As shown in fig. 1, the pipelines of the scheme prototype to be tested in this embodiment, which are respectively connected to the suction pressure tank 5 and the discharge pressure tank 3, are respectively provided with the first stop valve 9 and the second stop valve 10, so that the scheme prototype to be tested can be conveniently replaced, the vacuum-pumping pipeline of the test prototype is shortened, and the time is saved.
Meanwhile, a fifth stop valve 13 and a fourth stop valve 12 are respectively arranged on pipelines connected with the suction pressure tank 5 and the exhaust pressure tank 3 of the pressure regulating compressor 4, and a fourth stop valve 11 is arranged between the buffer pressure tank 2 and the exhaust pressure tank 3, so that stop valves are arranged between the upstream and the downstream of the suction pressure tank 5, the exhaust pressure tank 3, the buffer pressure tank 2 and the pressure regulating compressor 4, and when a certain part has a problem, the parts can be detached for maintenance.
(3) It should be noted that the compressor noise vibration test system in this embodiment mainly includes two loop systems, one is a pressure maintaining system cycle, and the other is a test system cycle. The pressure maintaining system is circularly composed of an air suction pressure tank 5, an air suction tank pressure gauge 8, an exhaust pressure tank 3, an exhaust tank pressure gauge 7, a pressure regulating compressor 4 and a plurality of stop valves; the test system is circularly composed of a suction pressure tank 5, a suction tank pressure gauge 8, an exhaust pressure tank 3, an exhaust tank pressure gauge 7, a scheme sample machine 1 to be tested and a plurality of stop valves, wherein a pressure balance valve 16 is arranged between the suction pressure tank and the exhaust pressure tank, a refrigerant filling valve 14 is arranged on the suction pressure tank, a pressure release valve 15 is arranged on the exhaust pressure tank, and a buffer pressure tank 6 is arranged between the scheme sample machine to be tested and the exhaust pressure tank. The pressure maintaining system can ensure that the pressure values of the air suction pressure tank and the exhaust pressure tank are the working conditions required by the scheme prototype to be tested, and the test system circularly aims at testing the scheme prototype to be tested. Compared with the conventional compressor noise test according to the specification in GB/T9098-2008, the test system formed by the embodiment only needs to spend the time for replacing the compressor and vacuumizing, greatly improves the efficiency, solves the time cost and the equipment cost, shortens the development period of the compressor, and wins the market share. Meanwhile, when the pressure in the suction pressure tank and the pressure in the exhaust pressure tank in the test system cannot meet the test working condition, the pressure maintaining system is started to circulate, and the pressure regulating compressor is matched with the refrigerant filling valve and the pressure balance valve on the suction pressure tank to regulate the pressure of the suction pressure tank and the pressure of the exhaust pressure tank so as to meet the test working condition again, so that the test efficiency is improved.
The following describes in detail a testing method based on the above simple and fast noise vibration testing system, which includes the following steps:
firstly, vacuumizing the whole pressure maintaining system and the testing system: and closing a refrigerant agent filling valve 14 on the suction pressure tank 5, closing a pressure release valve 15 on the exhaust pressure tank 3, starting vacuumizing the whole test system by using a fourth stop valve and a fifth stop valve, and closing the vacuum pump after the vacuum degree reaches the requirement.
And secondly, ensuring that a suction pressure tank and a discharge pressure tank of the pressure maintaining system reach specified pressures: closing the third stop valve 11 and the first stop valve 9, closing the pressure balance valve 16, opening the fourth stop valve 12 and the fifth stop valve 13, simultaneously opening the refrigerant filling valve 14, injecting a proper amount of target refrigerant, starting the operation of the pressure regulating compressor 4, enabling the pressure of the suction and exhaust pressure tank to reach a required working condition by regulating the refrigerant filling amount and the opening degree of the pressure balance valve 16, stopping filling the refrigerant after the working condition is reached, stopping the operation of the pressure regulating compressor 4, and simultaneously determining that the pressure balance valve 16 is in a closed state.
Thirdly, testing a to-be-tested scheme prototype 1: and opening the first stop valve 9 and the second stop valve 10, operating the sample machine 1 of the scheme to be tested, opening the third stop valve 11 after the pressure 2 of the buffer tank reaches the required exhaust pressure, electrifying the sample machine 1 of the scheme to be tested to perform noise vibration test, and stopping operating the sample machine to be tested after the test is finished.
Fourthly, vibrating the noise of the second sample machine to be tested: and (5) closing the stop valves 9 and 10, replacing the other scheme prototype to be tested, vacuumizing the other scheme prototype to be tested, and stopping the vacuum pump after the vacuum degree meets the requirement. And opening the first stop valve 9 and the second stop valve 10, operating the replaced second to-be-tested scheme prototype, opening the third stop valve 11 after the pressure of the buffer tank 2 reaches the required exhaust pressure, continuing electrifying the second to-be-tested scheme prototype to perform noise vibration test, and stopping operating the to-be-tested prototype after the test is finished.
The test of the prototype to be tested can be rapidly realized by repeating the steps. Compared with the traditional test method, the test efficiency is improved.
Further, after many tests are performed, the pressure maintenance system needs to be restarted after the pressure values of the suction pressure tank and the discharge pressure tank cannot meet the required working condition. At this time, the first stop valve 9 and the third stop valve 11 are ensured to be in a closed state, the pressure regulating compressor 4 is started to operate, the opening degree of the pressure balance valve 16 is regulated to enable the pressure of the suction pressure tank and the pressure of the discharge pressure tank to reach the required working condition again, the refrigerant filling valve 14 is opened to increase the refrigerant filling amount when necessary, and if the pressure of the discharge pressure tank 3 is very high, the pressure can be quickly reduced through the pressure reducing valve 15 to ensure the safety of the system.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present disclosure and not to limit, although the present disclosure has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present disclosure without departing from the spirit and scope of the technical solutions, and all of them should be covered in the claims of the present disclosure.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (9)
1. A testing method of a compressor noise vibration testing system is characterized in that: the system comprises a suction pressure tank and an exhaust pressure tank, a pressure regulating compressor and a compressor to be tested are connected in parallel between the suction pressure tank and the exhaust pressure tank, the suction pressure tank and the exhaust pressure tank are communicated with each other and are provided with a pressure balance valve therebetween, the suction pressure tank is connected with a refrigerant filling valve, a pipeline of the compressor to be tested, which is connected with the suction pressure tank and the exhaust pressure tank, is provided with a stop valve,
closing a refrigerant filling valve on the suction pressure tank, and stopping after the whole test system is vacuumized to reach the vacuum degree required by the test;
closing a stop valve and a pressure balance valve between the compressor to be tested and the suction pressure tank and the exhaust pressure tank; opening a refrigerant filling valve, filling a refrigerant, starting a pressure regulating compressor, enabling the pressure in a suction pressure tank and the pressure in a discharge pressure tank to reach the working condition required by the test by regulating the filling amount of the refrigerant and the opening degree of a pressure balance valve, and then closing the pressure regulating compressor and the pressure balance valve;
and opening a stop valve between the compressor to be tested and the suction pressure tank and between the compressor to be tested and the exhaust pressure tank, performing noise vibration test on the compressor to be tested, replacing the second compressor to be tested after the first compressor to be tested is tested, vacuumizing again, and opening the stop valve again for testing.
2. The test method of claim 1, wherein: and when the pressure values of the suction pressure tank and the exhaust pressure tank cannot meet the required test working condition, closing a stop valve between the compressor to be tested and the suction pressure tank and the exhaust pressure tank, starting the pressure regulating compressor, and adjusting the opening of the pressure balance valve to enable the pressures of the suction pressure tank and the exhaust pressure tank to reach the required working condition.
3. The test method of claim 2, wherein: when the pressure of the exhaust pressure tank exceeds the preset pressure, the pressure of the exhaust pressure tank is reduced through a pressure relief valve on the exhaust pressure tank.
4. The testing method of a compressor noise vibration testing system according to claim 1, wherein a buffer pressure tank is provided between the compressor to be tested and the discharge pressure tank, and a stop valve is also provided between the buffer pressure tank and the discharge pressure tank.
5. The testing method of a compressor noise vibration testing system according to claim 4, wherein pressure gauges are provided on the suction pressure tank, the discharge pressure tank and the buffer pressure tank.
6. The testing method of a compressor noise vibration testing system according to claim 4, wherein a stop valve is provided on a pipe of the pressure regulating compressor in communication with the suction pressure tank and the discharge pressure tank.
7. The testing method of a compressor noise vibration testing system according to claim 1, wherein a pressure relief valve is connected to a bottom of the discharge pressure tank.
8. The method of claim 1, wherein the displacement of the pressure-regulated compressor is greater than the compressor under test.
9. The testing method of a compressor noise vibration testing system according to claim 1, wherein the volumes of the discharge pressure tank and the suction pressure tank are respectively larger than the compressor to be tested.
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| CN202011373270.9A CN112412769B (en) | 2020-11-30 | 2020-11-30 | Compressor noise vibration testing system and method |
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| CN202011373270.9A CN112412769B (en) | 2020-11-30 | 2020-11-30 | Compressor noise vibration testing system and method |
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| CN112412769B true CN112412769B (en) | 2022-08-16 |
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| CN113565748B (en) * | 2021-09-23 | 2022-01-07 | 苏州卓樱自动化设备有限公司 | Performance test equipment and method for compressor |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20170314547A1 (en) * | 2016-04-29 | 2017-11-02 | Scott Daniel Fleischman | Gas Compression System |
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| CN101498298A (en) * | 2009-02-19 | 2009-08-05 | 浙江工业大学 | Apparatus and method for measuring small-sized cold compressor oil circulation amount |
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