Online high-precision smoke denitration ammonia escape detection system

Abstract

The invention provides an online high-precision smoke denitration ammonia escape detection system. The system comprises a sampling end, a detection mechanism and a control device, the sampling end andthe detection mechanism communicate with each other, the sampling end and the detection mechanism are both electrically connected with the control device, the sampling end comprises a bearing rack, adiversion pipe, a sleeve, a bearing base, a protective cover, a smoke filtering device, a negative pressure pump and a dust filter, the bearing base is connected with the front end surface of the bearing rack and is coaxially distributed with the bearing rack, the diversion pipe is embedded in the sleeve, the front end of the diversion pipe is located in the protective cover and communicates withthe protective cover through the smoke filtering device, and the rear end surface of the diversion pipe is located in the bearing rack and mutually communicate with the dust filter through the negative pressure pump. According to the system, on one hand, the integration degree is high, the device structure can be effectively simplified, and the flexibility and the convenience of device installation and positioning are improved; on the other hand, during smoke sampling, the smoke temperature can be effectively adjusted, and purification processing of dust in the smoke can be performed.

Description

technical field [0001] The invention relates to an online high-precision flue gas denitrification ammonia escape detection system structure, which belongs to the technical field of gas detection. Background technique [0002] At present, in industrial production and other fields, a large amount of seriously polluting gases such as hydrogen fluoride are often produced. In order to realize the detection of hydrogen fluoride in the tail gas, the current method is mainly to sample the tail gas, and then use the laser generator to detect the hydrogen fluoride in the flue gas sample. Although the detection of hydrogen fluoride can meet the needs of hydrogen fluoride detection operations, on the one hand, the detection system has a complex structure, difficult operation and maintenance, and high maintenance costs. On the other hand, only flue gas samples can be detected during the detection process. It cannot effectively meet the needs of comprehensive detection of flue gas, so it ...

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Problems solved by technology

[0002] At present, in industrial production and other fields, a large amount of seriously polluting gases such as hydrogen fluoride are often produced. In order to realize the detection of hydrogen fluoride in the tail gas, the current method is mainly to sample the tail gas, and then use the laser generator to detect the hydrogen fluoride in the flue gas sample. Although the detection of hydrogen fluoride can meet the needs of hydrogen fluoride detection operations, on the one hand, the detection system has a complex structure, difficult operation and maintenance, and high maintenance costs. On the other hand, only flue gas samples can be detected during the detection process. It cannot effectively meet the needs of comprehensive detection of flue gas, so it is easy to cause poor detection accuracy of flue gas, and cannot effectively meet the needs of actual use

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