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Pressure sensing diaphragm of micro-pressure automatic valve and preparation method of pressure sensing diaphragm

An automatic valve and induction membrane technology, which is applied in chemical instruments and methods, applications, valve devices, etc., to reduce maintenance costs, improve enterprise economic benefits, and protect the environment.

Pending Publication Date: 2021-12-03
浙江贝格霍尔自控工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a micro-pressure automatic valve pressure-sensing diaphragm and a preparation method thereof, which solves the problem of micro-pressure automatic valve corrosion resistance and prevention of corrosive gas leakage

Method used

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  • Pressure sensing diaphragm of micro-pressure automatic valve and preparation method of pressure sensing diaphragm
  • Pressure sensing diaphragm of micro-pressure automatic valve and preparation method of pressure sensing diaphragm
  • Pressure sensing diaphragm of micro-pressure automatic valve and preparation method of pressure sensing diaphragm

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Embodiment 1

[0029] exist figure 1 , figure 2 Among them, the pressure-sensing diaphragm of a micro-pressure automatic valve is a multi-layer structure circular diaphragm composed of diaphragms of various materials, including a layer of ultra-thin PTFE film (1), a layer of adhesive Membrane (2), a layer of soft polyester fabric (3), a layer of EPDM rubber (4).

[0030] The pressure-sensing diaphragm of the micro-pressure automatic valve has a diameter of 20-505 mm, a thickness of 1.15-6.0 mm, and a total height of 2-17.5 mm.

[0031] The thickness of one layer of ultra-thin PTFE membrane (1) of the pressure-sensing diaphragm of the micro-pressure automatic valve is 0.05-1.25mm;

[0032] The thickness of a layer of adhesive film (2) of the pressure-sensing diaphragm of the micro-pressure automatic valve is 0.05-1.50mm;

[0033] The thickness of a layer of soft polyester fabric (3) of the pressure-sensing diaphragm of the micro-pressure automatic valve is 0.3-1.0 mm;

[0034] The thickn...

Embodiment 2

[0058] exist figure 1 , figure 2 Among them, the pressure-sensing diaphragm of a micro-pressure automatic valve is a multi-layer structure circular diaphragm composed of diaphragms of various materials, including a layer of ultra-thin PTFE film (1), a layer of adhesive Membrane (2), a layer of soft polyester fabric (3), a layer of EPDM rubber (4).

[0059] The pressure sensing diaphragm of the micro-pressure automatic valve has a diameter of 282-505 mm, a thickness of 1.4-3.5 mm, and a total height of 2-17.5 mm.

[0060] The thickness of the ultra-thin PTFE film (1) layer of the pressure sensing diaphragm of the micro-pressure automatic valve is 0.05-0.20 mm.

[0061] The adhesive film (2) layer of the pressure-sensing diaphragm of the micro-pressure automatic valve has a thickness of 0.05-0.30 mm.

[0062] The thickness of the soft polyester fabric (3) layer of the pressure-sensing diaphragm of the micro-pressure automatic valve is 0.5-1.0 mm.

[0063] The thickness of t...

Embodiment 3

[0065] exist figure 1 , figure 2 Among them, the pressure-sensing diaphragm of a micro-pressure automatic valve is a multi-layer structure circular diaphragm composed of diaphragms of various materials, including a layer of ultra-thin PTFE film (1), a layer of adhesive Membrane (2), a layer of soft polyester fabric (3), a layer of EPDM rubber (4).

[0066] The pressure sensing diaphragm of the micro-pressure automatic valve has a diameter of 50-575 mm, a thickness of 1.95-5.55 mm, and a total height of 2-17.5 mm.

[0067] The thickness of the ultra-thin PTFE film (1) layer of the pressure sensing diaphragm of the micro-pressure automatic valve is 0.15-0.75 mm.

[0068] The adhesive film (2) layer of the micro-pressure automatic valve pressure sensing diaphragm has a thickness of 0.10-0.80 mm.

[0069] The thickness of the soft polyester fabric (3) layer of the pressure sensing diaphragm of the micro-pressure automatic valve is 0.5-1.5 mm.

[0070] The thickness of the EPD...

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Abstract

The invention provides a micro-pressure automatic valve pressure sensing diaphragm and a preparation method thereof, and solves the problems of corrosion resistance and corrosive gas leakage prevention of a micro-pressure automatic valve. The micro-pressure automatic valve pressure sensing diaphragm is a multi-layer structure circular diaphragm formed by compounding a plurality of diaphragms made of different materials, comprising a layer of ultra-thin PTFE film (1), a layer of adhesive film (2), a layer of soft polyester fabric (3) and a layer of EPDM (Ethylene-Propylene-Diene Monomer) rubber (4). The invention has the beneficial effects of corrosion gas resistance and long service life; the performance of the micro-pressure automatic valve is enhanced; the environment pollution caused by corrosive gas leakage is prevented; the product also has the effects of reducing the maintenance cost of corrosive fluid conveying equipment, improving the economic benefits of enterprises and protecting the environment, and can bring very beneficial effects to the enterprises and the society.

Description

technical field [0001] The invention relates to an original part of a micro-pressure automatic valve, in particular to a pressure-sensing diaphragm of a micro-pressure automatic valve and a preparation method thereof. Background technique [0002] The micro-pressure automatic valve is an automatic valve widely used in all walks of life to automatically control the micro-pressure corrosive gas, because the corrosive gas will cause corrosive damage to the micro-pressure automatic valve when it passes through the micro-pressure automatic valve Seriously affect the service life of the micro-pressure automatic valve, especially the elastic diaphragm of the micro-pressure automatic valve, and because the material of the elastic diaphragm of the traditional micro-pressure automatic valve is rubber, it is particularly sensitive to corrosive gases. In addition, the elastic diaphragm is very thin, and it is easy to be corroded and damaged by corrosive gas after a period of use, which ...

Claims

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Application Information

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IPC IPC(8): B32B27/32B32B27/36B32B27/02B32B27/12B32B25/14B32B25/08B32B25/10B32B27/08B32B7/12B32B3/28B29C43/02B29C43/36B29C43/52F16K51/00
CPCB32B27/322B32B27/12B32B25/14B32B25/10B32B5/02B32B7/12B32B3/28B29C43/02B29C43/52B29C43/36F16K51/00B32B2262/0276B32B2307/714B32B2307/7242B29L2007/002
Inventor 何生平陈传苗徐胜明
Owner 浙江贝格霍尔自控工程有限公司