Device for monitoring molecular-state pollutants in waste gas and control method thereof

A technology of molecular state and pollutants, applied in measurement devices, analytical materials, instruments, etc., can solve the problems of air pollutant pretreatment, inaccurate monitoring results, sensor damage, etc., to save labor costs, improve measurement accuracy, The effect of improving the service life

CN106338587AInactive Publication Date: 2017-01-18XIAMEN UNIV TAN KAH KEE COLLEGE
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2017-01-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a device for monitoring molecular-state pollutants in waste gas and a control method thereof. The device comprises a sampling pipe, wherein the sampling pipe is connected with a gas concentration sensor box through a filter, the gas concentration sensor box is connected with a sampling pump, the sampling pump is connected with a control system through a relay, the filter is connected with a differential pressure sensor through two connecting pipes, and the differential pressure sensor and a gas concentration sensor are both connected with the control system. Air pollutant sampling parameters are set through the control system the control system automatically controls the relay to start the sampling pump, air pollutants are sampled through the filter and the gas concentration sensor, and the gas concentration sensor uploads the concentration of the molecular-state pollutants to the control system. The device for monitoring molecular-state pollutants in waste gas is simple in structure and achieves timed monitoring and accurate quantification, and the problem that the sensor is damaged in waste gas monitoring can be well solved.
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Description

technical field

[0001] The invention relates to the field of environmental monitoring, in particular to a monitoring device for molecular state pollutants in waste gas and a control method thereof. Background technique

[0002] Air pollution is becoming more and more serious, so the monitoring of air pollutants is particularly important. These pollutants include molecular state pollutants and particle state pollutants. At present, when monitoring and sampling molecular state pollutants such as various gases, there is no air pollution The gas concentration sensor is in direct contact with these pollutants, and the particle state pollutants in the pollutants will cause damage to the gas concentration sensor, shorten the service life of the sensor, and lead to inaccurate monitoring results. Contents of the invention

[0003] The object of the present invention is to provide a monitoring device for molecular state pollutants in exhaust gas and a control method thereof, so as t...

Examples

Embodiment Construction

[0012] The technical solution of the present invention will be specifically described below in conjunction with the accompanying drawings.

[0013] The invention provides a monitoring device for molecular state pollutants in exhaust gas, such as figure 1 Shown: including a sampling tube, one end of the sampling tube is connected to the inlet of the filter, the outlet of the filter is connected to the inlet of the gas concentration sensor box through the first connecting tube, and the outlet of the gas concentration sensor box is connected to the sampling pump through the second connecting tube, The sampling pump is connected with the relay, the filter is connected with the differential pressure sensor through two connecting pipes, and the differential pressure sensor, the relay and the gas concentration sensor are connected with the control system.

[0014] Such as figure 2 As shown, the air filter includes an initial filter screen 21 , a medium filter screen 22 , and a high...