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Control system and method for sodium citrate desulfuration process

A desulfurization process, sodium citrate technology, applied in the direction of control/regulation system, separation method, non-electric variable control, etc., to achieve the effect of reducing influence, improving precision, and speeding up the corresponding time

Inactive Publication Date: 2017-10-20
NANJING UNIV OF TECH
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  • Control system and method for sodium citrate desulfuration process

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Embodiment Construction

[0030] The present invention will be further described below by means of the accompanying drawings and specific embodiments.

[0031] The control system of the sodium citrate desulfurization process of the present embodiment is as follows in order according to the process flow direction: the flue gas to be treated enters the bottom of the absorption tower 3 from the flue gas inlet 1 through the flue gas feed flowmeter 2, and is connected with the liquid from the storage tank. The sodium citrate absorption liquid flowing out from the sodium citrate absorption liquid storage tank 10 of the level detector 8 and transported to the top of the absorption tower 3 through the sodium citrate absorption liquid delivery pump 9 is fully countercurrently contacted in the absorption tower 3, and the tail gas at the top of the tower After being detected by the exhaust gas detector 4, it is discharged from the outer discharge port 5. The tower still absorbs the rich liquid through the absorbi...

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Abstract

The invention relates to a control system and method for a sodium citrate desulfuration process. The control system comprises sodium citrate desulfuration process equipment, a computer main control device and multiple equipment sub control devices, wherein the sodium citrate desulfuration process equipment comprises absorption unit equipment and desorption unit equipment; the sodium citrate desulfuration process equipment is connected in a cascading manner; all the equipment sub control devices form a loop and are connected with the sodium citrate desulfuration process equipment and the computer main control device; the equipment sub control devices comprise on-line detection devices and actuation mechanisms. According to the control system, the on-line detection devices are used for measuring flow, a liquid level and temperature of equipment and parameters such as concentration of SO2 in gas from an outlet in the top of a desorption tower; the computer main control device compares a measured value with a forecast value range and sends a signal according to a comparison result, so that absorption and desorption working conditions can be regulated and controlled in real time to ensure that the absorption rate and the desorption rate meet requirements and to ensure that the sodium citrate desulfuration process equipment is retained at a steady and efficient operation state.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to a control system and method for a sodium citrate desulfurization process. Background technique [0002] With the massive combustion of fossil energy such as coal and oil, SO 2 Smoke is increasing year by year, which not only endangers human health but also SO 2 is the main cause of acid rain, so the control of SO 2 Pollution is not only of theoretical significance, but also of practical significance. [0003] Sodium citrate desulfurization technology has the advantages of green environmental protection, flexible operation, recyclable absorbent, etc., and meets the increasingly stringent desulfurization requirements in the form of environmental protection. In addition, the research on automatic control technology is conducive to liberating humans from complex, dangerous and tedious labor environments and greatly improving control efficiency. Therefore, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/18G05D27/02
CPCB01D53/1412B01D53/1425B01D53/1481B01D53/18G05D27/02B01D2252/205
Inventor 管国锋周蔡成万辉
Owner NANJING UNIV OF TECH
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