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Filter integrality detection device

A technology of integrity detection and filter, which is applied in the direction of measuring the increase and decrease rate of fluid, liquid tightness measurement by using liquid/vacuum degree, etc. High sealing requirements and other issues, to achieve the effect of reducing air leakage, reducing design and manufacturing costs, and saving space

Inactive Publication Date: 2012-12-19
ZHEJIANG TAILIN BIOENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the disadvantages of the prior art that the precision is not high, the tiny flaws on the filter layer or the filter membrane cannot be detected, and the tightness of the joints of the components of the detection device is required to be high. High airtightness, a new type of integrity detection device that can realize modularization and rapid replacement of components

Method used

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Examples

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Embodiment 1

[0028] Filter integrity detection device, the filter integrity detection device is connected between the gas source and the filter to be tested, such as figure 2 , 3 As shown, it includes a solenoid valve, a pressure sensor, a reference tank, and an air circuit board 1. The solenoid valve, pressure sensor, and reference tank are arranged on the air circuit board 1. The board 1 is fixedly connected by buckles, threads and the like. The air circuit board 1 is provided with an air channel pipe 3 (i.e. image 3 The dotted line part shown), the solenoid valve, the pressure sensor, and the reference tank communicate with each other through the gas pipeline 3. In this way, all processing units are integrated on the air circuit board 1 to form an integral module.

Embodiment 2

[0030] On the basis of Embodiment 1, the filter integrity detection device of the present invention includes the following components, such as figure 1 , 3 As shown, the solenoid valve includes a first solenoid valve 201, a second solenoid valve 202, a third solenoid valve 203, a fourth solenoid valve 204, a fifth solenoid valve 205, and a sixth solenoid valve 206, and the pressure sensor includes a first pressure The sensor 210 , the second pressure sensor 211 , and the reference tank include a large reference tank 208 and a small reference tank 209 .

[0031] Wherein, the first electromagnetic valve 201 is a proportional valve for adjusting the detection pressure.

[0032] The small reference tank 209 is the gas pipeline 3 connecting the second solenoid valve 202 and the third solenoid valve 203, making full use of the existing space of the gas pipeline 3 to further simplify the structure of the filter integrity detection device.

[0033] The sixth electromagnetic valve 20...

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Abstract

The invention relates to a filter integrality detection device, and further discloses a filter integrality detection device connected between an air source and a filter to be detected. The filter integrality detection device comprises electromagnetic valves, pressure sensors, reference tanks, an air circuit board, wherein the reference tanks are connected between the air source and the filter to be detected, and the pressure sensors and the electromagnetic valves are connected between the reference tanks and the air source as well as between the reference tanks and the filter to be detected; the electromagnetic valves, the pressure sensors and the reference tanks are arranged on the air circuit board, the air circuit board is internally provided with an air circuit pipeline, and the electromagnetic valves, the pressure sensors and the reference tanks are mutually communicated through the air circuit pipeline. The filter integrality detection device disclosed by the invention has the advantages of good leak tightness, high detection precision and modularized integral structure, thereby being capable of realizing water intrusion integrality detection of the filter.

Description

technical field [0001] The invention relates to a filter integrity detection device, in particular to a detection device which can accurately measure the filter integrity. Background technique [0002] A filter device is a separation device often used in the chemical and food industries, including one or more filter layers or filter membranes sandwiched together to obtain specific performance characteristics such as retention. During the assembly and use of such a filter device, maintaining the integrity of the filter layer or filter membrane therein is crucial to realizing the function of the filter device. [0003] In general, the integrity of devices containing various filter layers or membranes can be tested by means of an air diffusion test using an appropriate liquid such as water, alcohol or other liquids with similar functions, or a gas such as Air, infiltrating the filter layer or filter membrane. Under the action of the set pressure, the liquid or gas will pass t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M3/26
Inventor 叶大林夏信群
Owner ZHEJIANG TAILIN BIOENG
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