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Improved slurry supply system of desulfurization device and control system of slurry supply system

A desulfurization device and an improved technology, which is applied in the direction of comprehensive factory control, electrical program control, and separation of dispersed particles, can solve the problems of difficulty in controlling emission standards, high maintenance and replacement equipment costs, and fast valve loss, etc., to achieve non-stop Maintenance, reduce the amount of equipment maintenance, improve the effect of work efficiency

Pending Publication Date: 2019-04-12
BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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Problems solved by technology

[0002] In the existing flue gas desulfurization process, the slurry supply system in the desulfurization device has two slurry supply pumps, one for standby and one for use, operating at power frequency. Usually, the self-operated pressure regulating valve is used to control the pressure of the main pipe at the outlet of the pump. The slurry supply volume is realized by measuring the PH value of the AFT tower and controlling the slurry supply pipeline regulating valve through the DCS control algorithm, which has the disadvantages of fast valve loss, short mission life, and the need to stop the operation when the system slurry supply pump or valve fails for maintenance and replacement. , affecting the difficulty of controlling emission standards, high maintenance and replacement equipment costs, and high operating costs

Method used

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  • Improved slurry supply system of desulfurization device and control system of slurry supply system
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  • Improved slurry supply system of desulfurization device and control system of slurry supply system

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0028] Such as figure 1 As shown, an improved desulfurization device slurry supply system includes a slurry supply box 1, and the slurry supply box 1 is connected to the AFT tower 3 and the absorption tower 4 respectively through a slurry supply pump pipeline, and the slurry supply pump pipeline includes a slurry supply A slurry pump 22, an inlet valve 21 and an outlet valve. The slurry supply box 1 is externally connected with three parallel slurry supply pump pipelines. Each slurry sup...

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Abstract

The invention discloses an improved slurry supply system of a desulfurization device and a control system of the slurry supply system. The improved slurry supply system comprises a slurry supply tank,slurry supply pump pipelines and a slurry supply mother pipeline, the exterior of the slurry supply tank is connected with three slurry supply pump pipelines arranged in parallel, and each slurry supply pump pipeline is provided with an inlet valve, a slurry supply pump and two outlet valves. Two of the slurry supply pump pipelines are used and one of the slurry supply pump pipelines is reserved,one slurry supply pump pipeline can supply slurry to an AFT tower and an absorption tower, and a slurry supply return pipeline is simplified. The improved slurry supply system saves more energy and is more stable, system operation failure points are reduced, the equipment maintenance amount is reduced, the desulfurization operation cost is reduced, multiple guarantees are provided, non-stop maintenance is achieved, system normal operation is guaranteed and the work efficiency is improved.

Description

technical field [0001] The invention relates to a slurry supply system for a desulfurization device, in particular to an improved slurry supply system for a desulfurization device and a control system thereof. Background technique [0002] In the existing flue gas desulfurization process, the slurry supply system in the desulfurization device has two slurry supply pumps, one for standby and one for use, and the power frequency operation. Usually, the self-operated pressure regulating valve is used to control the pressure of the main pipe at the outlet of the pump. The slurry supply volume is realized by measuring the PH value of the AFT tower and controlling the slurry supply pipeline regulating valve through the DCS control algorithm, which has the disadvantages of fast valve loss, short mission life, and the need to stop the operation when the system slurry supply pump or valve fails for maintenance and replacement. , affecting the difficulty of controlling emission standa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/48G05B19/418
CPCB01D53/48B01D53/80G05B19/4184B01D2258/0283
Inventor 董振宇苏敏丽
Owner BEIJING GUODIAN LONGYUAN ENVIRONMENTAL ENG
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