Fume emission on-line continuous detecting system sampling apparatus

Abstract

The invention discloses a sampling device for a continuous online detection system of flue gas emission, which is characterized in that the sampling device is composed of a sampling ash removing mechanism, a controller and a sampling pump. The sampling ash removing mechanism is used to collect sample gas and eliminate powder dust in the gas, and is composed of a main body structure, a back-blowing controller, a back-blowing gas pipe, a sweeping controller, a flue gas sample outlet, a dust removing filter element and a sweeping actuator. The controller is composed of a frequency converter, a computer, a flue gas flow speed sampling interface, a control output interface, a frequency converter output interface and a power supply wire interface, and the computer controls the sampling ash removing mechanism to sample and remove ash and simultaneously controls the sampling speed of the sampling pump in order to realize the sampling synchronization. The sampling pump is composed of a control wire interface, a fan, a flue gas sample detecting inlet and a surplus sample gas outlet. The invention solves the problems of sampling blockage, synchronous sampling and negative pressure sampling, detects and samples the gas in the process of controlling production, and is also applied to detection and sampling for the environmental protection of various gas.

Description

technical field

[0001] The invention belongs to the technical field of detection equipment, and in particular relates to a sampling device for an on-line continuous detection system of flue gas emission, which is applied to the detection of flue gas emission in industries such as metallurgy, cement, and thermal power generation. Background technique

[0002] With the shortage of modern energy and the gradual entry of foreign enterprises into the Chinese market, our enterprises, especially some energy mining enterprises, must increase energy conservation and improve production efficiency. In order to optimize the production control of the industrial production process, it is necessary to select appropriate characterization quantities that can reflect the production reaction process. These characterization quantities may be the products of chemical reactions or the reaction conditions of reactions. For example, in the production process of metallurgy (alumina, iron ore roastin...

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