A liquid film heat exchange absorption tube
A technology of heat absorption and liquid film, which is applied in the field of absorption tubes and liquid film heat exchange absorption tubes, can solve the problems of low accuracy of chemical sampling and impossibility of chemical sampling, and achieve the effect of continuous chemical sampling and high sampling accuracy
Active Publication Date: 2017-09-26
XIAN THERMAL POWER RES INST CO LTD +2
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Problems solved by technology
[0003] The casing-type fugitive ammonia sampling device is an effective sampling method, but since the ammonium bisulfate adhered to the inner wall of the sampling tube must be flushed after each sampling, continuous chemical sampling cannot be performed, and the accuracy of chemical sampling is not high
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[0014] The present invention is described in further detail below in conjunction with accompanying drawing:
[0015] refer to figure 1 , the liquid film heat exchange absorption tube of the present invention comprises absorption liquid distribution chamber 4, flue gas transmission pipe 1, cooling liquid circulation chamber 6, flue gas backflow cooling chamber 5 and cryogenic coil 3; There are absorption liquid inlet and absorption liquid outlet, the flue gas return cooling chamber 5 is located in the cooling liquid circulation chamber 6, the outlet of the flue gas transmission pipe 1 and the absorption liquid outlet of the absorption liquid distribution chamber 4 are connected to the top of the flue gas return cooling chamber 5 The upper end of the cryogenic coil 3 passes through the bottom of the cooling liquid circulation chamber 6 and communicates with the outlet at the bottom of the flue gas return cooling chamber 5, and the sides of the upper and lower ends of the cooling...
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The invention discloses a liquid film heat exchange absorption pipe, which comprises an absorption liquid distribution chamber, a flue gas transmission pipe, a cooling liquid circulation chamber, a flue gas backflow cooling chamber and a cryogenic coil; Liquid inlet and absorption liquid outlet, the flue gas return cooling chamber is located in the cooling liquid circulation chamber, the outlet of the flue gas transmission pipe and the absorption liquid outlet of the absorption liquid distribution chamber are connected with the inlet on the top of the flue gas return cooling chamber, the cryogenic coil The upper end passes through the bottom of the cooling liquid circulation chamber and communicates with the outlet at the bottom of the flue gas return cooling chamber, and the sides of the upper and lower ends of the cooling liquid circulation chamber are respectively provided with a cooling liquid outlet and a cooling liquid inlet. The invention can realize the continuous chemical sampling of flue gas, and the sampling accuracy is high.
Description
technical field [0001] The invention belongs to the field of energy saving and environmental protection, and relates to an absorption tube, in particular to a liquid film heat exchange absorption tube. Background technique [0002] At present, the accurate detection method of escaped ammonia at the outlet of the denitrification device is the chemical sampling analysis method. The key to the chemical sampling analysis method is to ensure that NH3 does not decrease during the sampling process. Since the outlet of the denitrification device contains SO3 gas with a concentration much higher than that of NH3, when the temperature is lower than 220°C, the reaction will generate viscous ammonium bisulfate (SO 3 +2NH 3 +H 2 O→(NH 4 ) 2 SO 4 ). Therefore, the key to sampling design is to effectively avoid the adhesion and retention of ammonium bisulfate on the tube wall. [0003] The casing-type fugitive ammonia sampling device is an effective sampling method, but since the a...
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IPC IPC(8): G01N1/22
Inventor 罗志鲁晓宇李文杰贾林权常磊李明皓
Owner XIAN THERMAL POWER RES INST CO LTD