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High pressure resistant composite diaphragm for high pressure diaphragm pump

A high-pressure diaphragm and high-pressure-resistant technology, which is applied to components, pumps, and pump components of pumping devices for elastic fluids, can solve problems such as wear of pistons and hydraulic cylinders, limit application fields, and cannot be used to achieve good sealing The effect of performance, versatility, and simple structure

Active Publication Date: 2015-12-09
楚天源创生物技术(长沙)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the high-pressure pumps currently used are plunger pumps. This pump has some defects. First, because its piston needs to reciprocate, it requires high manufacturing precision for the piston and hydraulic cylinder; Reciprocating motion often causes wear of pistons and hydraulic cylinders, thus affecting the service life of the pump; secondly, the general plunger pump has a large volume, thus limiting its application field
Another widely used pump is a diaphragm pump. Although it overcomes the defects of the plunger pump, because the diaphragm of the existing diaphragm pump is made of non-metallic elastic materials such as rubber, this type of material cannot withstand high pressure. Diaphragm pumps cannot be used in higher pressure applications

Method used

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  • High pressure resistant composite diaphragm for high pressure diaphragm pump
  • High pressure resistant composite diaphragm for high pressure diaphragm pump
  • High pressure resistant composite diaphragm for high pressure diaphragm pump

Examples

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Embodiment Construction

[0020] The following examples are further explanations and illustrations of the present invention, and do not constitute any limitation to the present invention.

[0021] refer to figure 1 , Figure 5 , The high-pressure resistant composite diaphragm 100 of the high-pressure diaphragm pump of the present invention includes a non-metallic elastic sealing diaphragm 10, a metal elastic diaphragm 20, a liquid chamber 31 and a metal elastic diaphragm 40 with holes in the high-pressure diaphragm pump.

[0022] Such as Figure 2A , Figure 2B As shown, the non-metallic elastic sealing diaphragm 10 is a circular diaphragm made of deformable non-metallic material, such as rubber, plastic, etc., which is sealed and connected to the liquid chamber 31 of the high-pressure diaphragm pump 30 by conventional methods. The opening is used to isolate and seal the liquid chamber 31 from diaphragms, pressure heads and other components.

[0023] Such as figure 1 , one or more layers of metal ...

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Abstract

Disclosed is a high-pressure-resistant composite diaphragm of a high-pressure diaphragm pump. The high-pressure-resistant diaphragm comprises a non-metallic elastic sealing film layer (10) and one or multiple metallic elastic film layers (20) compounded on the non-metallic elastic sealing film layer (10). The non-metallic elastic sealing film layer (10) is connected with the metallic elastic film layers (20) at an opening of a liquid cavity (31) of the high-pressure diaphragm pump in a sealing manner. Volume of the liquid cavity can be changed by elastic deformation of the metallic elastic film layers (20), and suction or discharging of liquid can be realized. The high-pressure resistance composite diaphragm has good sealing performance and high strength to resist high pressure, and the volume of the liquid cavity can be changed by the elastic deformation.

Description

【Technical field】 [0001] The invention relates to fluid conveying machinery, in particular to a high-pressure-resistant composite diaphragm of a high-pressure diaphragm pump. 【Background technique】 [0002] A pump is a fluid conveying machine, and its high-pressure pump is widely used in chemical, pharmaceutical, hydraulic transmission and other fields. Most of the high-pressure pumps currently used are plunger pumps. This pump has some defects. First, because its piston needs to reciprocate, it requires high manufacturing precision for the piston and hydraulic cylinder; Reciprocating motion often causes wear on pistons and hydraulic cylinders, thus affecting the service life of the pump; secondly, the general plunger pump has a large volume, which limits its application field. Another widely used pump is a diaphragm pump. Although it overcomes the defects of the plunger pump, because the diaphragm of the existing diaphragm pump is made of non-metallic elastic materials suc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04B43/02F04B53/00
Inventor 肖立峰
Owner 楚天源创生物技术(长沙)有限公司
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