Simulation test device and simulation test method for hazardous gas detector
A gas detector and simulation test technology, which is applied to measurement devices, instruments, scientific instruments, etc., can solve the problem of no effective measures to verify the sensitivity and coverage of gas detectors, and achieve the effect of compact structure and convenient assembly.
Active Publication Date: 2018-10-12
CHINA PETROLEUM & CHEM CORP +1
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Problems solved by technology
In the chemical production, the hazardous gas detectors are put into use after being deployed and installed on site. There are no effective measures to verify the sensitivity and coverage of the deployed and installed gas detectors during use.
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[0030] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0031] Such as figure 1 with 2 As shown, this embodiment provides a simulation test device for hazardous gas detectors, which consists of six pieces of rectangular plexiglass fixedly connected to form a test box. The upper end surface 15 of the test box is assembled and connected with a support 21, and a camera 22 is mounted on the support 21, and the camera 22 is located directly above the test box. The camera 22 is used to take pictures of the smoke and the measured gas in the test box, and convert them into grayscale data by the image acquisition card. A heating pipe is arranged on the inner side of the lower end surface of the test box, and a temperature sensor base is fixedly connected to the inner side of the lower end surface of the test box, the temperature sensor is connected to the temperature sensor base and the monitoring probe ...
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The invention provides a simulation test apparatus used for a harmful gas detector, and a simulated test method thereof. The simulated test apparatus has the advantages of compact structure and assembling convenience, can simulate different temperature conditions, different smog concentrations, different wind concentrations different detected gas concentrations and other conditions, and also can simulate the sensitive degree of the tested gas detector to a detected gas in order to estimate the coverage rate of the gas detector; and the simulation test method records the smog images hot by a camera at different temperatures and different smog concentrations and under different wind conditions, an image acquisition card is converted into a gray scale, and the degree of the gray scale of the smog image is used to visually analyze the sensitive degree of the gas detector to the detected gas, so the coverage rate of the gas detector is estimated.
Description
technical field [0001] The invention relates to the technical field of hazardous gas safety control, in particular to a simulation test device and a simulation test method for a hazardous gas detector. Background technique [0002] As one of the safety protection layers in the production process of chemical enterprises, the gas detection system is widely used in offshore or land oil and gas exploration, long-distance oil and gas pipelines, oil tank farms, petrochemical plants and other fields, as a measure to mitigate the consequences of accidents. Therefore, the reliability requirements for the gas detection system are very high. Once the failure occurs, the accidents that have already occurred will spread further, and the consequences will be seriously upgraded. The fire and gas systems used in petrochemical enterprises are designed, installed, maintained and used in accordance with the design specifications for flammable and toxic gas alarms. They rely more on the experie...
Claims
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IPC IPC(8): G01N21/00
CPCG01N21/00
Inventor 严龙刘璇李玉明
Owner CHINA PETROLEUM & CHEM CORP