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Denitrated urea quality on-line monitoring method and device

A monitoring device, urea technology, applied in the field of on-line monitoring of denitrification urea quality, can solve problems such as difficulty in sampling and submitting batches for inspection, and inability to guarantee the timeliness of test results, so as to achieve the effect of ensuring safe operation

Pending Publication Date: 2021-11-02
润电能源科学技术有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

After sampling in some power plants, the outsourced third-party testing agency conducts acceptance checks, and it is difficult to take samples and submit them for inspection batch by batch, nor can it guarantee the timeliness of test results

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  • Denitrated urea quality on-line monitoring method and device
  • Denitrated urea quality on-line monitoring method and device
  • Denitrated urea quality on-line monitoring method and device

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Embodiment Construction

[0032] The core of the present invention is to provide an online monitoring method and device for the quality of denitrification urea, which can quickly, timely and reliably monitor the content of impurities mixed in the denitrification urea, strictly control the quality of urea, find quality problems in time, and ensure the safe operation of the denitrification system.

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. 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.

[0034] An embodiment of a denitration urea quality online monitoring method provided by th...

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Abstract

The invention discloses a denitration urea quality on-line monitoring method, which comprises the following steps: acquiring the conductivity of a denitration urea solution, and carrying out data processing and correction; calculating the conductivity by using an algorithm model to obtain an impurity content result represented by inorganic salt; comparing the impurity content result with an impurity content early warning value to obtain a comparison result; and judging the quality of the denitration urea according to the comparison result. According to the online monitoring method for the quality of the denitration urea, the content of impurities mixed in the denitration urea can be rapidly, timely and reliably monitored, the quality of the urea is strictly controlled, the quality problem is timely found, and safe operation of a denitration system is guaranteed. The invention further provides a denitration urea quality on-line monitoring device.

Description

technical field [0001] The invention belongs to the technical field of supporting equipment for power plants, and in particular relates to a method and device for on-line monitoring of denitration urea quality. Background technique [0002] The normal operation of the flue gas denitrification system in thermal power plants is the guarantee of NO x Meet ultra-low emission ≤50mg / Nm 3 Important environmental protection measures for enterprises to discharge pollutants up to standard. Among flue gas denitrification technologies, Selective Catalytic Reduction (SCR) has high efficiency, mature technology, and is widely used. Ammonia, as the reducing agent for SCR denitrification, is mainly produced by liquid ammonia and urea. In recent years, people have paid more and more attention to the potential hazards in the use of liquid ammonia, and urea hydrolysis or pyrolysis technology has been increasingly widely used in SCR denitrification systems. In the technology of urea hydrolys...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N27/06
CPCG01N27/06
Inventor 李海荣王锋涛薛昌刚常亮郭瑞霞孙明坤唐国鹏何睦李海丰周志彬杜珂
Owner 润电能源科学技术有限公司
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