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Vibrating film assembly for oscillation balance, and processing method

A technology of diaphragm components and oscillating balances, which is applied to measuring devices, suspension and porous material analysis, instruments, etc., can solve problems such as limited use and popularization, diaphragm design and processing technology difficulties, and achieve reduced production costs and overall quality Lightweight and good for gas circulation

Pending Publication Date: 2021-03-19
QINGDAO ZHONGRUI INTELLIGENT INSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The diaphragm used in micro-oscillating balances is difficult to design and process, which limits its popularization in my country.

Method used

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  • Vibrating film assembly for oscillation balance, and processing method
  • Vibrating film assembly for oscillation balance, and processing method
  • Vibrating film assembly for oscillation balance, and processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The diaphragm assembly 10 in this embodiment is applied to an oscillating balance, and the oscillating balance is used in the direct reading of the particle concentration by the oscillating balance method in occasions such as fixed pollution sources, ambient air, and fugitive emissions.

[0041] refer to figure 1 and figure 2 , the vibrating balance includes an oscillating rod 20 , the oscillating rod 20 is a hollow cylindrical structure, and a first cavity 21 is formed inside the oscillating rod 20 .

[0042] The diaphragm assembly 10 includes a filter diaphragm 100 and a diaphragm seat 200 .

[0043] The function of the filter membrane 100 is to enrich the particulate matter and accumulate the weight. The enriched weight of the filter membrane can be read in real time by means of an oscillating balance, and then the concentration of the particulate matter can be converted.

[0044] The diaphragm seat 10 has a first port 210, a second port 220, and a cavity (marked ...

Embodiment 2

[0063] This embodiment discloses a method for processing a diaphragm assembly. The diaphragm assembly is the diaphragm assembly 10 disclosed in Embodiment 1, which includes a method for processing a diaphragm seat. The method for processing a diaphragm seat includes:

[0064] Punching out the first port 210 on the metal circular metal sheet;

[0065] Punch out a plurality of protruding parts 222 on the circular metal sheet, and the punching direction of the protruding parts 222 and the first port 210 is opposite;

[0066] A burring portion 221 is formed by burring the outer periphery of the circular metal sheet.

[0067] In some embodiments of the present application, the processing method of the diaphragm assembly 10 also includes a method for placing and fixing the filter membrane, and the method for placing and fixing the filter membrane includes:

[0068] The outer peripheral flanging of the circular metal sheet is formed into a flanging portion 221, and the flanging port...

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PUM

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Abstract

The invention discloses a vibrating film assembly for an oscillating balance, and a processing method. The vibrating film assembly comprises a filter film and a vibrating film seat, the vibrating filmseat is provided with a first port, a second port and a cavity penetrating through the first port and the second port, the first port is used for being connected with the oscillating rod of an oscillating balance, and the second port is covered with the filter film. According to the invention, particulate matters are enriched on the filter film, and the weight of the enriched particulate matterscan be measured in an oscillating balance mode, so that the concentration of the particulate matters is converted; the vibrating film seat plays a role in fixing the filter film and also plays a rolein guiding gas; the vibrating film seat is manufactured by a stamping method and is convenient to process; and the vibrating film assembly can be conveniently fixed on the oscillating rod as a whole,and is convenient to install.

Description

technical field [0001] The invention relates to the field of particle mass concentration measurement, in particular to a vibrating membrane assembly for an oscillating balance and a processing method. Background technique [0002] In recent years, the problem of environmental pollution has been paid more and more attention by the government and the public. As a kind of environmental pollution, air pollution directly endangers people's health. At present, there are many monitoring methods for particulate matter in the atmosphere or fixed pollution sources. For example, equipment based on the light scattering method can be monitored in real time, but its traceability is not good; and the β-ray method is also slow to popularize due to cost and other reasons; Membrane weighing method, as a traditional soot concentration measurement technology, is usually used to calibrate other measurement methods, but this method requires manual operation by monitoring personnel, which is time-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/0618
Inventor 孙作福孙见跃吕卫涛常庆凯张姗
Owner QINGDAO ZHONGRUI INTELLIGENT INSTR