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Detection apparatus and detection method for hydrogen cyanide in research lab

A detection device and hydrogen cyanide technology, applied in the field of environmental safety, can solve the problems of long detection cycle, expensive equipment and high cost, and achieve the effects of short response time, good health and good stability.

Inactive Publication Date: 2016-01-06
ZHEJIANG GONGSHANG UNIVERSITY
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  • Abstract
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  • Claims
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Problems solved by technology

[0006] The present invention aims to overcome the shortcomings of long detection period, high cost and expensive equipment of the gas detection method in the prior art, and provides a hydrogen cyanide in the laboratory that can quickly and accurately detect the concentration of hydrogen cyanide in the laboratory environment. Detection device and detection method

Method used

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  • Detection apparatus and detection method for hydrogen cyanide in research lab
  • Detection apparatus and detection method for hydrogen cyanide in research lab
  • Detection apparatus and detection method for hydrogen cyanide in research lab

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Embodiment Construction

[0071] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0072] Such as figure 1 , figure 2 The illustrated embodiment is a hydrogen cyanide detection device in a research laboratory, including a controller 1, a memory 25, a base plate 2, a gas chamber 3 with a rectangular cross section and a support frame 4 on the base plate, and a support frame 4. The upper guide structure 5 and the transverse screw 6;

[0073] The top of the inner wall of the air chamber is provided with a frequency-adjustable ultrasonic generator 26 and five fans 7 for blowing downward. The inner and outer walls of the air chamber are provided with gas-sensitive membranes 8 in order from top to bottom, and electric heaters for supporting the gas-sensitive membranes. The metal mesh 9 made of silk, the horizontal partition 10 which is located at the bottom of the metal mesh and divides the air chamber into upper and lower parts,...

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Abstract

The invention discloses a detection apparatus and detection method for hydrogen cyanide in a research lab. The detection apparatus comprises a controller, a memory, a base plate, a rectangular cross section equipped air chamber and a support frame arranged on the base plate, and a guide structure and a cross lead screw arranged on the support frame. The inner wall top of the air chamber is provided with an ultrasonic generator and several fans for blowing down, the inner side wall of the air chamber is equipped with a gas sensitive film, a metal net composed by heating wires and for supporting the gas sensitive film, a horizontal separator plate that is located below the metal net and separating the inside of the air chamber into an upper part and a lower part from top down in order, and the air chamber is internally provided with an ultrasonic receiver, a support plate, a detection head and a track spirally distributed along the upper surface of the support plate. The detection apparatus provided by the invention has the characteristics of high sensitivity, good stability and short response time, good selectivity to hydrogen cyanide, and ability to detect lower concentration trace hydrogen cyanide gas, thus effectively guaranteeing people good health.

Description

technical field [0001] The invention relates to the technical field of environmental safety, in particular to a hydrogen cyanide detection device and a detection method in a research laboratory capable of rapidly and accurately detecting the concentration of hydrogen cyanide in a laboratory environment. Background technique [0002] Hydrogen cyanide is a liquid under standard conditions. Hydrogen cyanide is easy to disperse evenly in the air and is combustible in the air. When the content of hydrogen cyanide in the air reaches 5.6% to 12.8%, it is explosive. Hydrocyanic acid is highly toxic. The clinical manifestations of acute hydrogen cyanide poisoning are the obvious bitter almond smell in the exhaled breath of the patient, and the mild poisoning mainly manifests as chest tightness, palpitations, rapid heart rate, headache, nausea, vomiting, and blurred vision. The main manifestations of severe poisoning are deep coma, shallow and fast breathing, paroxysmal convulsions...

Claims

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Application Information

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IPC IPC(8): G01N33/00
Inventor 施小平阚相如连广浒朱义族
Owner ZHEJIANG GONGSHANG UNIVERSITY
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