Pipeline for conveying active parched desulfurization gas and mounting method thereof
A technology of desulfurization gas and installation method, applied in the direction of rigid pipe, pipeline protection, separation method, etc., can solve the problems of frequent perforation of pipeline, discontinuous operation of equipment, environmental pollution, etc.
Active Publication Date: 2011-09-14
WENGFU (GRP) CO LTD
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Problems solved by technology
[0002] In the activated coke dry flue gas desulfurization process, the desorbed SO2 gas needs to be transported through pipelines to the production purification system for acid production. At present, ordinary carbon steel pipes are mostly used for transportation. Ordinary carbon steel pipes have poor corrosion resistance and frequent perforation of pipes. It pollutes the environment and wastes raw materials; in addition, because the insulation rock wool thickness of the pipeline is 110 mm, the temperature inside the pipeline is low, and crystallization occurs at the shower outlet of the pipeline. The above defects lead to discontinuous operation of the equipment
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[0014] Such as figure 1 As shown, replace all ordinary carbon steel pipes with a diameter of 450mm from the outlet of the desorption fan with JNS acid-resistant steel pipes with a diameter of 550mm. Each section of the pipe is installed upward or downward with a slope of 5‰-10‰, and the installation diameter is 150mm at the lowest point along the line. The guide shower device 2. A butterfly valve (not shown) with a diameter of 550mm is installed at the outlet 3 of the SO2 fan, a butterfly valve with a diameter of 550mm (not shown) is installed at the production series, and a field temperature gauge (not shown) is installed at the inlet and outlet 3 of the SO2 fan, and production An on-site temperature gauge (not shown) is installed at the system inlet.
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The invention discloses a pipeline for conveying active parched desulfurization gas and a mounting method thereof, wherein the pipeline for conveying active parched desulfurization gas is a JNS acid resistant steel pipeline. The mounting method of the pipeline comprises the following steps of: firstly, changing all common carbon steel pipelines into JNS acid resistant steel pipelines from the outlet of a desorbing fan; secondly, mounting each section of the pipeline upwards or downwards according to the inclination of 0.5-1%, and respectively mounting a guiding shower device at the bottommostpoint of the line; and thirdly, configuring heat insulation mineral wool as thick as 140 mm outside the pipeline. Each section of the pipeline has inclination; therefore, a small amount of acidic liquid produced in the pipeline can be discharged in time through the guiding shower device; the thickness of the heat insulation layer of the pipeline is increased; the temperature in the pipeline is more stable; the liquid leakage generated is relatively reduced; and the normal operation of the pipeline system is ensured.
Description
technical field [0001] The invention relates to a pipeline for desorbing SO2 gas and an installation method for the pipeline in the active coke dry flue gas desulfurization process. Background technique [0002] In the activated coke dry flue gas desulfurization process, the desorbed SO2 gas needs to be transported through pipelines to the production purification system for acid production. At present, ordinary carbon steel pipes are mostly used for transportation. Ordinary carbon steel pipes have poor corrosion resistance and frequent perforation of pipes. It pollutes the environment and wastes raw materials. In addition, because the insulation rock wool thickness of the pipeline is 110 mm, the temperature inside the pipeline is low, and crystallization occurs at the shower outlet of the pipeline. The above defects lead to discontinuous operation of the equipment. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention aims to...
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IPC IPC(8): B01D53/02F16L9/02F16L58/00F16L1/024F16L55/07F16L59/02
Inventor 柳玉松刘静岑祖望刘火焱
Owner WENGFU (GRP) CO LTD