Test device for membrane adhesion fastness of membrane-coated air filter felt and test method

A testing device and fastness technology, which are applied in the field of testing devices for lamination fastness of film-coated air filter felts, to achieve the effects of ensuring air tightness, a simple structure and a high degree of automation

Inactive Publication Date: 2016-11-16
福建鑫华股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The object of the present invention is to provide a film adhesion fastness test device and test method, the device structure is simple, the test air flow is normal temperature compresse...

Method used

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  • Test device for membrane adhesion fastness of membrane-coated air filter felt and test method
  • Test device for membrane adhesion fastness of membrane-coated air filter felt and test method
  • Test device for membrane adhesion fastness of membrane-coated air filter felt and test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] figure 1 It is a schematic diagram of the film lamination fastness test device. figure 2 It is a schematic diagram of the test chamber structure. Such as figure 1 As shown, the film bonding fastness testing device includes an air source switch 1, an air pressure regulating valve 2, a pressure sensor 3, a test chamber 4, a microprocessor 6 and a computer 7, the air source switch 1, the air pressure regulating valve 2, the pressure The sensor 3 and the test chamber 4 are connected in sequence through the air flow pipeline. The air source switch is used to control the delivery of air flow to the test chamber. The air pressure regulating valve is used to adjust the pressure of the air in the test cup. The pressure sensor 3 is used to detect the test chamber. The pressure sensor 3 is connected to the computer 7 through the microprocessor 6, and signals can be transmitted between the connections, and the computer 7 draws the signal received from the microprocessor 5 into a...

Embodiment 2

[0047] The test sample is 550g / m 2 The polyester fiber face layer is covered with a film air filter felt, and all the other procedures are the same as in Example 1. The test results obtained are as follows:

[0048] Sample 2: 550g / m 2 Polyester fiber surface layer coated air filter felt

[0049]

Embodiment 3

[0051] The test sample is 450g / m 2 The polyphenylene sulfide fiber surface layer is covered with a film air filter felt, and the rest of the procedures are the same as in Example 1. The test results obtained are as follows:

[0052] Sample 3: 450g / m 2 Polyphenylene sulfide fiber surface layer coated air filter felt

[0053]

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Abstract

The invention discloses a test device, which is simple in structure, safe and convenient to operate, and capable of testing the membrane adhesion fastness of a membrane-coated air filter felt and discloses a test method. The test device comprises a gas source switch (1), an air-pressure regulating valve (2), a pressure transducer (3), a test chamber (4), a microprocessor (6) and a computer (7). The gas source switch (1), the air-pressure regulating valve (2), the pressure transducer (3) and the test chamber (4) communicate with each other in sequence; the pressure transducer (3) is connected to the computer (7) through the microprocessor (6), and signals can be transmitted in the connection; and the computer (7) draws a pressure-time curve based on signals received from a microprocessor (5). The air-pressure regulating valve is gradually regulated, and the pressure of air in the test chamber is gradually increased, so that via the microprocessor, values tested by the pressure transducer form the pressure-time curve on the computer through drawing. When the pressure-time curve deviates from the variation trend of an original curve, the pressure corresponding to the change is the membrane adhesion fastness of a tested membrane-coated air filter felt.

Description

technical field [0001] The invention relates to a test device and a test method for the lamination fastness of a film-covered air filter felt, belonging to the detection field of non-woven fabric manufacturing. Background technique [0002] In September 2011, the Ministry of Environmental Protection of my country announced the "Emission Standard of Air Pollutants for Thermal Power Plants GB13223-2011". The standard stipulates that as of July 1, 2014, the smoke and dust emission concentration of old and new coal-fired power plants must be less than 30㎎ / m 3 , the emission requirement in key areas is less than 20㎎ / m 3 . The unique "surface filtration" mechanism of the film-coated air filter felt meets the emission requirement of less than 20㎎ / m 3 Undoubtedly, it has obvious advantages in working conditions. However, the key performance indicators to measure the film-coated air filter felt include the film bonding firmness in addition to the weight, horizontal and vertical s...

Claims

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Application Information

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IPC IPC(8): G01N19/04
CPCG01N19/04
Inventor 陈长奕施纯秒杨泽林
Owner 福建鑫华股份有限公司
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