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Extensible long-distance multi-path gas sampling expansion device

A technology for expanding device and gas sampling, applied in sampling device, measuring device, sampling and other directions, can solve the problems of sampling, multi-channel analysis device without expansion device, efficiency needs to be further improved, etc., to achieve the effect of convenient use and simple structure

Pending Publication Date: 2021-11-12
HUBEI HAINA TIANYING TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Most of the multi-channel sampling currently involved in the field of atmospheric sampling is to analyze the existing collected samples, and it is impossible to perform long-distance sampling; and the existing multi-channel analysis device has no expansion device for the time being, and can only The number of channels is analyzed and tested, and the efficiency needs to be further improved

Method used

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  • Extensible long-distance multi-path gas sampling expansion device
  • Extensible long-distance multi-path gas sampling expansion device
  • Extensible long-distance multi-path gas sampling expansion device

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The main control board of the expansion device establishes communication with the main control device through the RS485 interface. After receiving the command, the main control board of the expansion device realizes the control of the direct-acting solenoid valve group through the multi-channel I / O signal isolation amplifier, and switches between different air inlets. gas collection and evacuation.

[0020] The main control board of the expansion device provides a Bluetooth configuration interface, and the user can configure the basic information of the main control board through the APP.

[0021] The expansion device comes with 6 sampling ports. If the number of sampling ports is insufficient, the next expansion device can be cascaded. The communication method adopts RS485 communication mode, and the communication protocol uniformly adopts the Modbus-RTU protocol. The operation of multiple gas path expansion devices It is uniformly controlled by the main control board ...

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PUM

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Abstract

The invention provides an extensible long-distance multi-path gas sampling extension device, which comprises a direct-acting electromagnetic valve group, a quick-change connector, a multi-path I / O signal isolation amplifier, a wiring terminal module, a power supply module, a main control board, an inert material hose and a case, and is provided with six sampling gas inlets, the device is provided with six sampling gas inlets, the sampling gas inlets are respectively connected with the two direct-acting electromagnetic valve groups through the three-way adapter, the two direct-acting electromagnetic valve groups are respectively and directly connected with the sampling gas inlets and the to-be-sampled gas inlet, one of the two valve groups is used for sampling, and the other valve group is used for to-be-sampled gas, so that the purging waiting time of the next path of gas can be effectively reduced; the main control board is used for carrying out gas path on-off control on the electromagnetic valve, so that disordered switching of multiple gas paths is realized, the purpose of gas multi-path sampling is further achieved, and 1km long-distance sampling can be realized at most; the device is provided with a gas path expansion interface which can be connected with an expansion device to expand a sampling gas path according to actual requirements; the device is further provided with an external communication interface, and the gas circuit state can be monitored in real time and the gas circuit can be controlled to be switched on and off through related communication means; and the device is matched with an extensible long-distance multi-path gas sampling device (hereinafter referred to as a main control device) for use, the number of sampling gas paths can be expanded, and the utilization rate of an analytical instrument is improved.

Description

technical field [0001] The invention relates to the field of gas sampling, in particular to an expandable remote multi-channel gas sampling expansion device. Background technique [0002] Most of the multi-channel sampling currently involved in the field of atmospheric sampling is to analyze the existing collected samples, and it is impossible to perform long-distance sampling; and the existing multi-channel analysis device has no expansion device for the time being, and can only The number of channels is analyzed and tested, and the efficiency needs to be further improved. Contents of the invention [0003] The invention provides an expandable long-distance multi-channel gas sampling expansion device, which can expand 6 sampling points, and can superimpose multiple expansion devices according to needs, so as to achieve the required number of sampling points and greatly improve monitoring efficiency; and through correlation The communication means can remotely set the sam...

Claims

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Application Information

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IPC IPC(8): G01N1/24G01N1/26G05B19/042
CPCG01N1/24G01N1/26G05B19/042G05B19/0423G05B2219/21137G05B2219/25176
Inventor 许健俊李阳秦清刘洋吴锋程昱罗崇金蒋苏蓉
Owner HUBEI HAINA TIANYING TECH DEV CO LTD
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