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Apparatus for measuring density and pH value of serous fluid processed by wet flue gas desulfurization

A technology for wet flue gas desulfurization and measuring devices, which is applied in the direction of measuring devices, instruments, scientific instruments, etc. It can solve the problems that density meters and pH meters cannot be flushed online, affect measurement accuracy, and equipment shutdowns, etc., and achieve easy online flushing and maintenance, reduce the frequency of accidents, and prolong the service life

Inactive Publication Date: 2009-10-07
沈阳远大环境工程有限公司
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wet flue gas desulfurization slurry density and pH value measuring device, which solves the problem that the density meter and pH meter existing in the wet flue gas desulfurization device cannot be flushed online, which is easy to block and affects the measurement accuracy. The structural design is reasonable to ensure that the density meter and pH meter operate within the allowable pipeline flow rate range of the instrument, which is convenient for online flushing and maintenance, and significantly improves the accurate measurement of the desulfurization slurry detection value, which is beneficial to flue gas desulfurization Up-to-standard emission and equipment operation stability, fundamentally eliminate the problem of desulfurization equipment shutdown, and prolong the service life of the instrument

Method used

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  • Apparatus for measuring density and pH value of serous fluid processed by wet flue gas desulfurization

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Embodiment Construction

[0009] according to figure 1 The specific structure of the present invention will be described in detail. The wet flue gas desulfurization slurry density and pH value measuring device includes a main pipeline 7 and a density meter (mass flow meter / density meter) 5 for measuring the slurry, a pH meter 1, a return pipeline 10, a plurality of connecting flanges 9, and a diaphragm valve 2 and bent pipe, parts such as clip electric valve 4 and support cylinder 8. Wherein the main pipeline 7 for conveying gypsum slurry and limestone slurry is provided with a branch pipe, and through the branch pipe and the connecting flange 9, the elbow will sequentially communicate with the electric valve 4, the diaphragm valve 2 and the support cylinder 8, and then communicate with the will be The return pipeline 10 that measures the slurry and sends it into the slurry buffer tank forms a slurry circulation loop. Diaphragm valve 2 is set for closing local branch pipelines when the density meter ...

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Abstract

An apparatus for measuring density and pH value of serous fluid processed by wet flue gas desulfurization overcomes defects of the prior art that densimeters and pH value meters are apt to be blocked to result in shut-down of equipments and the like. The apparatus comprises a main pipeline, a densimeter, a pH value meter, a returning passage, connecting flanges and elbows of the returning passage. The main technical proposal is as follows: arranging branched pipes on the main pipeline; adopting the branched pipes to sequentially communicate with a butt clamp motor-operated valve, a diaphragm valve and a support cylinder so as to form a serous fluid circulation loop with the returning passage; arranging communicated wash tub pipes on side walls of the branched pipes and the support cylinder; communicating the densimeter with side walls of branched pipes; and arranging the pH value meter in the support cylinder. The apparatus has proper structure design, can ensure the normal work of the densimeter and the pH value meter in a range of pipeline flow-velocity allowable to the meters, and also can bring convenience for online flushing and maintenance. The apparatus distinctly enhances the accuracy of measured values of the serous fluid processed by wet flue gas desulfurization, thus being beneficial to the standard emission of desulfurized gas and the stability of equipment running, fundamentally eliminating the shut-down of desulfurization equipment and simultaneously prolonging the service life of meters.

Description

technical field [0001] The invention relates to a detection instrument for gypsum slurry and limestone slurry in the main pipeline of a wet flue gas desulfurization device, in particular to a wet flue gas desulfurization slurry density and pH measuring device which is accurate in measurement and convenient for online washing and maintenance . Background technique [0002] At present, in the operation process of the wet flue gas desulfurization device, in order to ensure the reliability of the operation of the desulfurization device and the effect of flue gas desulfurization, it is necessary to control the density and The pH value is tested. The density meter used in existing detection instruments is installed directly on the main pipeline alone, and the pH meter is installed on the absorption tower, which is easy to cause damage to the density meter and pH meter, affecting its service life and performance. Once the density meter and pH meter are damaged, it will cause The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00
Inventor 刘志军王玉龙于军李耀东耿作凤李长伟李春培王义
Owner 沈阳远大环境工程有限公司
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