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Gas Sampling System

A gas sampling and gas collection technology, which is applied to sampling, sampling devices, instruments, etc., can solve the problems of high cost and complex structure of automatic gas samplers, and achieves flexible layout, simplified operation device and overall structure, and good economy. Effect

Active Publication Date: 2020-12-08
BEIJING UNIV OF CIVIL ENG & ARCHITECTURE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the structure of the automatic gas sampler is complicated, and the cost required for practical application is relatively high.

Method used

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0029] Those skilled in the art will understand that unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the word "comprising" used in the description of the present invention refers to the presence of said features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, Integers, steps, operations, elements, components, and / or groups thereof. It will be understoo...

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PUM

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Abstract

The invention provides a gas sampling system, which comprises a direct current power supply (1), an electromagnetic relay (2), a data collecting card (3), a controller (4) and a gas collecting device(5), wherein the controller (4) is connected with the data collecting card (3) through a circuit; the starting and the stopping of the data collection card (3) are controlled by sending a control command to the data collecting card (3); the data collecting card (3) is connected with the electromagnetic relay (2) through a circuit; the on-off and the reversing of the electromagnetic relay (2) are controlled; the electromagnetic relay (2) controls the on-off state of an electromagnetic cylinder (11); the gas collecting device (5) controls a pushing assistance rod (9) to perform push-pull actionthrough the on-off state of the electromagnetic cylinder (11); the pushing assistance rod (9) pushes an injector (6) to perform gas sampling operation. The gas sampling system has flexible arrangement; meanwhile, the gas sampling in a plurality of positions can be performed at the same time; the action device and the integral structure are simplified by the device; the economic performance is better.

Description

technical field [0001] The invention relates to the technical field of gas collection, in particular to a gas sampling system. Background technique [0002] Combustible gas leakage accidents may occur in the long-term use of natural gas pipelines in underground utility corridors. In order to respond to the occurrence of leakage and make timely and effective early warnings, it is necessary to conduct experimental tests on parameters such as the natural gas alarm concentration setting value (upper limit value), emergency cut-off concentration setting value, natural gas detector layout distance, and ventilation times. Its effectiveness, economy, and make corresponding adjustments. In the experiment, in order to measure the gas concentration in the pipe gallery after the gas leakage, it is necessary to sample the gas at different positions of the pipe gallery at multiple time points. It is necessary to design a gas sampling system for the gas pipeline leakage diffusion and eme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/24
CPCG01N1/24G01N2001/242
Inventor 许淑惠张瑞达袁欣然徐荣吉王曦
Owner BEIJING UNIV OF CIVIL ENG & ARCHITECTURE