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Flue gas desulfurization pH measurement device

A measuring device and flue gas technology, applied in gas treatment, instruments, analysis materials, etc., can solve the problems of energy waste, shorten service life, etc., and achieve the effects of reducing energy consumption, reducing equipment wear, and reducing workload

Pending Publication Date: 2017-07-25
DATANG ENVIRONMENT IND GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This will not only wash away the worn gypsum to discharge the pump, pipeline, throttle orifice, pH meter, reduce the service life, but also cause unnecessary waste of energy

Method used

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  • Flue gas desulfurization pH measurement device

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] Such as figure 1 As shown, a flue gas desulfurization pH value measuring device includes:

[0033] A desulfurization absorption tower 1, which is connected to a pH meter installation tank 2 through a sampling pipeline 3;

[0034] Such as figure 2 As shown, the pH meter installation tank 2 is cylindrical, and the top of the pH meter installation tank 2 is provided with a cover plate 21, and the cover plate 21 is provided with a flushing port 22 and two pH meter connection ports 24, The pH meter installation tank 2 is connected to the flushing pipeline 4 through the flushing port 22, and t...

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Abstract

The invention relates to a flue gas desulfurization pH measurement device, and belongs to the technical field of environmental protection in flue gas desulfurization. The flue gas desulfurization pH measurement device comprises a desulfurization absorption tower, a pH meter installation tank, wherein the desulfurization absorption tower is connected with the pH meter installation tank through a sampling pipeline; the pH meter installation tank is provided with a flushing opening and two pH meter connection openings and connected with a flushing pipeline through the flushing opening; two pH meters are arranged through the pH meter connection openings; a liquid inlet is formed in the middle and lower part of the side wall of the pH meter installation tank and the pH meter installation tank is connected with the sampling pipeline through the liquid inlet; a liquid outlet is formed in the middle and upper part of the pH meter installation tank and the pH meter installation tank is connected with a liquid discharge pipeline through the liquid outlet; slurry is discharged to a desulfurization island trench through the liquid discharge pipeline; a drain outlet is formed at the bottom of the side wall of the pH meter installation tank; and two baffle plates are fixed in the pH meter installation tank from top to bottom. The pressure of long-term running of a gypsum discharge pump system is relieved, the energy consumption is reduced, the equipment abrasion is reduced and the service life of equipment is prolonged.

Description

technical field [0001] The invention relates to a device for measuring the pH value of flue gas desulfurization, which belongs to the technical field of environmental protection of flue gas desulfurization. Background technique [0002] Wet flue gas desulfurization in coal-fired power plants is currently the desulfurization technology with the highest desulfurization rate and the most widely used. This technology uses limestone slurry (made by grinding limestone with water) as a desulfurizer, and desulfurizes the sulfur dioxide (molecular formula SO) contained in the flue gas in the absorption tower (chemical reaction device). 2 ) spray washing, so that the SO in the flue gas 2 The reaction produces CaSO 4 , the key point of this reaction is Ca 2+ The formation of Ca 2+ The formation of H + The concentration of the limestone is related to the pH value of the slurry. The optimal range of pH is 5.8-6.2, which is most conducive to the decomposition of the limestone slurry ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50G01N35/10
CPCB01D53/502G01N35/1009B01D2251/404B01D2251/606B01D2258/0283
Inventor 汪作胜殷雅丹汪煜皓王志刚
Owner DATANG ENVIRONMENT IND GRP
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