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Silencer measuring device

A technology of measuring device and muffler, which is applied in the direction of measuring device, testing of machine/structural components, instruments, etc., can solve problems such as poor accuracy of noise reduction, and achieve the effect of solving poor accuracy and accurate noise reduction.

Inactive Publication Date: 2018-09-28
ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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  • Abstract
  • Description
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Problems solved by technology

[0004] The main purpose of the present invention is to provide a muffler measuring device to solve the problem of poor accuracy of the muffler measured by the muffler measuring device in the prior art

Method used

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. 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 application belongs.

[0034] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that wh...

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Abstract

The invention provides a silencer measuring device which comprises a first standing wave tube, a second standing wave tube, and a heating device. The first standing wave tube is connected with the first end of a silencer, the sound source enters the silencer through the first standing wave tube; the second standing wave tube is connected with the second end of the silencer; and the heating deviceis used for heating the medium in the first standing wave tube. The silencer measuring device solves the problem that the noise eliminating amount measured by the silencer measuring device in the prior art is poor in accuracy.

Description

technical field [0001] The invention relates to the field of mufflers, in particular to a muffler measuring device. Background technique [0002] The standing wave tube method is usually used to measure the noise reduction of existing mufflers. The measurement structure mainly includes sound source devices, sensors, standing wave tubes, the muffler under test and other components. The basic working principle is: the sound source emits a wide frequency (the specific frequency depends on the need), propagates in the standing wave tube, and evaluates the noise reduction of the muffler by collecting the sound pressure signals at the front and rear ends of the muffler under test. [0003] The muffler of the air conditioning system is usually located at the exhaust pipe. The medium in the muffler is generally high temperature and high pressure refrigerant, and the medium has a certain flow rate. In the prior art, the medium in the standing wave tube of the measurement method is g...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/00
CPCG01M13/00
Inventor 夏增强高旭高智强程诗
Owner ZHUHAI GREE REFRIGERATION TECH CENT OF ENERGY SAVING & ENVIRONMENTAL PROTECTION
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