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Detection apparatus and detection method for toluene leakage in laboratory

A leak detection device and laboratory technology, applied in the field of laboratory toluene leak detection devices, can solve the problems of long detection cycle, expensive equipment, high cost, etc., and achieve short response time, good health and good stability

Inactive Publication Date: 2015-12-09
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
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Problems solved by technology

[0007] The present invention aims to overcome the shortcomings of long detection period, high cost and expensive equipment in the gas detection method in the prior art, and provides a laboratory toluene leakage detection device and detection device capable of quickly and accurately detecting the concentration of toluene in the laboratory environment. method

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  • Detection apparatus and detection method for toluene leakage in laboratory
  • Detection apparatus and detection method for toluene leakage in laboratory
  • Detection apparatus and detection method for toluene leakage in laboratory

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Embodiment Construction

[0070] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0071] Such as figure 1 , figure 2 The illustrated embodiment is a laboratory toluene leak detection device, including a controller 1, a memory 25, a base plate 2, an air chamber 3 with a rectangular cross section and a support frame 4 located on the base plate, and a support frame 4 located on the support frame. Guide structure 5 and transverse screw mandrel 6;

[0072] Such as figure 2 As shown, the top of the inner wall of the air chamber is provided with five fans 7 for blowing downward, and the inner and outer walls of the air chamber are provided with a gas-sensitive film 8 and a metal mesh 9 made of electric heating wires for supporting the gas-sensitive film. 1. A horizontal partition 10 located at the bottom of the metal mesh and separating the air chamber into upper and lower parts. The bottom of the air chamber is provided with ...

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Abstract

The present invention discloses a detection apparatus and a detection method for toluene leakage in a laboratory. The detection apparatus comprises a controller, a memory, a bottom plate, a gas chamber arranged on the bottom plate, a support frame arranged on the bottom plate, a guide structure arranged on the support frame, and a transverse screw rod arranged on the support frame, wherein the top portion of the inner wall of the gas chamber is provided with a plurality of fans for blasting downward, the inner side wall of the gas chamber wall is sequentially provided with a gas sensitive film, a metal mesh for supporting the gas sensitive film and formed by electric heating wires, and a horizontal separation plate for separating the metal mesh and the gas chamber on the lower portion of the metal mesh from top to bottom, the inner bottom portion of the gas chamber is provided with a support plate, a detection head and a track spirally distributed along the upper surface of the support plate, and the detection head is provided with a MQ-2 sensor, a MQ-135 sensor and a ME3-C7H8 sensor. The apparatus of the present invention has advantages of high sensitivity, good stability, short response time and good toluene selectivity, and can detect the trace toluene gas with the low concentration so as to effectively protect people health.

Description

technical field [0001] The invention relates to the technical field of environmental safety, in particular to a laboratory toluene leakage detection device and detection method capable of rapidly and accurately detecting toluene concentration in a laboratory environment. Background technique [0002] Toluene is a colorless, sweet-smelling transparent liquid at room temperature with a strong aromatic odor. Toluene is flammable, toxic, and a carcinogen. Toluene is a hydrocarbon and the simplest aromatic hydrocarbon. Toluene is insoluble in water but easily soluble in organic solvents and can be used as an organic solvent. [0003] Toluene can paralyze the central nervous system and cause acute poisoning; severe cases may cause headache, nausea, vomiting, confusion, loss of consciousness, coma, convulsions, etc., and severe cases may cause death due to central system paralysis; a small amount of toluene can also cause People have drowsiness, dizziness, rapid heart rate, heada...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N1/40
Inventor 刘福奇汤旭翔赵帅陈赛陈柳柳曹海洋
Owner ZHEJIANG GONGSHANG UNIVERSITY
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