Protective clothing performance test system and using method thereof

A technology for testing systems and protective clothing, which is used in testing wear resistance, using liquid/vacuum for liquid tightness measurement, measuring devices, etc. Reduce space and avoid the effect of lax closing

Inactive Publication Date: 2019-10-08
HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, there is a lack of a test device that simultaneously completes the air tightness measurement of protective clothing in the same test system, and the existing air tightness test method is mainly based on manual testing, the degree of system integration is low, and the test method exists Human operation errors are large, and it is labor-intensive, and the operation is more complicated.

Method used

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  • Protective clothing performance test system and using method thereof
  • Protective clothing performance test system and using method thereof
  • Protective clothing performance test system and using method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Such as Figure 1-4As shown, a protective clothing performance testing system includes a control device, an air tightness testing device, a spray testing device, and a test chamber 4, and a support for supporting the protective clothing 6 is arranged in the test chamber 4. In this embodiment , the supporting part uses a dummy model, which is made of metal winding, so as to support the protective clothing 6 and ensure the gas flow in the entire protective clothing 6. The test chamber 4 can prevent the explosion of the protective clothing 6 due to improper operation during the airtight test, and can prevent the external environment from being damaged during the spray test. A door 41 is set on the test chamber 4, which is convenient to prevent the protective clothing 6, and a sealing strip is provided on the contact surface between the door 41 and the test chamber 4 when it is closed. The airtightness testing device and the jetting testing device are respectively describe...

Embodiment 2

[0069] Concrete steps when using the airtightness testing device in embodiment 1 to detect protective clothing 6 are as follows:

[0070] SA1, the protective clothing 6 is arranged on the support member, the air inlet valve of the protective clothing 6 is connected with the output end of the air inlet pipeline 32 in a sealed manner, the air outlet valve and the input end of the air outlet pipeline 33 are conducted and the edges are sealed; the pressure sensor 35 The detection end of the pressure sensor is sealed and arranged in the protective clothing 6, and is connected to the signal output end of the pressure sensor 35 and the control device;

[0071] SA2, start the inflation stage, the control device controls the air pump 31 to open, the intake on-off valve 322 in the intake valve group is opened, the numerical control proportional valve 321 is in a state of large flow, the leak on-off valve 34 on the outlet pipeline 33 is closed, and the pressure The data detected by the s...

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Abstract

The invention relates to a protective clothing performance test system and a using method thereof, and belongs to the field of protective clothing performance test. The system comprises a control device and an airtightness test device, the airtightness test device comprises an air inlet pipe and an air outlet pipe, the air inlet pipe is provided with an air pump for supplying air into protective clothing, an inlet valve group is arranged in an air supply pipe, a snuffle on-off valve is arranged in the air outlet pipe, a pressure sensor for detecting the internal air pressure in the protectiveclothing is arranged on the protective clothing to be tested, and the signal end of the pressure sensor and the controlled ends of the inlet valve group and the snuffle on-off valve are all connectedto the control device. The system and method have the advantages that the airtightness test device inflates the internal of the protective clothing, the pressure sensor detects the internal pressure of the protective clothing, and the airtightness of the protective clothing is determined according to a pressure difference.

Description

technical field [0001] The invention belongs to the field of performance testing of protective clothing, in particular to a performance testing system for protective clothing and a method for using the same. Background technique [0002] Protective clothing is mainly used for firefighters, emergency rescue personnel, and special operators to wear protective clothing when they enter the area of ​​​​dangerous objects for fire extinguishing, emergency rescue, and operation. It can resist the contact of dangerous objects with the skin and harm the human body. [0003] The overall air-tightness, liquid-tightness, resistance to chemical penetration and penetration performance of protective clothing are important physical parameters for the safety evaluation of protective clothing, especially chemical protective clothing, and must meet specific requirements. Therefore, accurate evaluation of the overall air-tightness and liquid-tightness of protective clothing is a key link in the ...

Claims

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Application Information

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IPC IPC(8): G01M3/26G01N3/56G01N17/00
CPCG01M3/26G01N3/567G01N17/00G01N17/002G01N2203/0042G01N2203/024
Inventor 付明申世飞李亚运刘小勇方成武金模李念思林虹霞徐畅
Owner HEFEI INST FOR PUBLIC SAFETY RES TSINGHUA UNIV
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