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Device and method for automatic flow checking and calibration of on-line particulate matter analyzer

A technology for automatic inspection and calibration of devices, applied in testing/calibrating devices, measuring devices, testing/calibrating volume flow, etc., to achieve high accuracy, easy design, and saving manpower and material resources

Inactive Publication Date: 2017-01-25
广东省环境监测中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The air quality automatic monitoring station is a unit with the highest degree of automation integration in the field of environmental monitoring. It also shoulders the mission of releasing air quality online monitoring data in real time. Calibrated device still not available

Method used

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  • Device and method for automatic flow checking and calibration of on-line particulate matter analyzer
  • Device and method for automatic flow checking and calibration of on-line particulate matter analyzer
  • Device and method for automatic flow checking and calibration of on-line particulate matter analyzer

Examples

Experimental program
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Effect test

Embodiment 1

[0045] An online particulate matter analyzer flow automatic inspection and calibration device, including a cyclone cutter 1, a connection switch 2, a particle analyzer 3, an air pump 4, a standard flow meter 5 and a control terminal, a cyclone cutter, and a particle analyzer and the standard flowmeter are respectively connected to the connection switcher, and the particle analyzer is connected to the suction pump;

[0046] The control terminal is connected to the connection switcher, and is used to control the connection between the particle analyzer and the cyclone cutter or the standard flowmeter; preferably, the control terminal sends a control command to the connection switcher, so that the connection switcher controls the connection with the cyclone cutter The cutter is connected or connected to a standard flow meter.

[0047] The standard flow meter is connected with the control terminal for sending the instantaneous flow value to the control terminal;

[0048] The part...

Embodiment 2

[0057] A method for automatic checking and calibrating the flow rate of an online particle analyzer, comprising the following steps:

[0058] Sampling and analysis: connect the switcher to connect the particle analyzer to the cyclone cutter, start the suction pump, and the ambient air is sucked in from the cyclone cutter, and enters the particle analyzer for analysis after connecting the switcher, and finally passes through the suction pump pull out

[0059] When checking the flow rate, the connection switcher cuts off the connection between the particle analyzer and the cyclone cutter and connects the standard flowmeter to the particle analyzer. The air is sucked in from the standard flowmeter and enters the particle analysis through the connection switcher. The real-time instantaneous flow value is obtained through the standard flowmeter. When flow calibration is required, the control terminal compares the instantaneous flow value detected by the standard flowmeter with the ...

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Abstract

The invention discloses a device and method for automatic flow checking and calibration of an on-line particulate matter analyzer. The device for automatic flow checking and calibration of the on-line particulate matter analyzer comprises a cyclone type cutter, a connecting switcher, a particulate matter analyzer, an air suction pump, a standard flowmeter and a control terminal. The cyclone type cutter, the particulate matter analyzer and the standard flowmeter are connected with the connecting switcher, the particulate matter analyzer is connected with the air suction pump, the control terminal is connected with the connecting switcher, the standard flowmeter is connected with the control terminal, and the particulate matter analyzer is connected with the control terminal. According to the device and method for automatic flow checking and calibration of the on-line particulate matter analyzer, flow calibration work execution difficulty can be effectively reduced, measurement errors are reduced, manpower and material resources can be greatly reduced, and the device and the method are particularly suitable for daily operation maintenance process and flow check and accept work of the particulate matter analyzer.

Description

technical field [0001] The invention relates to a flow detection device and method of an environmental particle analyzer, in particular to a flow automatic checking and calibration device and method of an online particle analyzer. Background technique [0002] Atmospheric particulate matter has always been a hot spot in the study of the atmospheric environment. At present, the main research directions include: the chemical composition of particulate matter, radiation characteristics, cloud and precipitation processes, heterogeneous chemical processes, and formation and transformation mechanisms. Studies have shown that the increase in the concentration of particulate matter will not only lead to degradation of visibility and regional haze, but also affect human health and ground solar radiation. In particular, inhalable particulate matter (PM10) and fine particulate matter (PM2.5), compared with coarser atmospheric particulate matter, their particle size is small, the area i...

Claims

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Application Information

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IPC IPC(8): G01F25/00
CPCG01F25/10
Inventor 张涛袁鸾周炎师建中岳玎利
Owner 广东省环境监测中心
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