Anti-fouling and anti-blocking additive for online silicate meter of thermal power plant

An additive, silicate technology, applied in material analysis by observing the effect on chemical indicators, analysis by chemical reaction of materials, color/spectral property measurement, etc., can solve problems such as flow path blockage and reduce The effect of maintaining, strengthening laboratory supervision, and increasing investment rate

Inactive Publication Date: 2020-04-24
河北建投能源科学技术研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The technical problem to be solved in the present invention is to provide an on-line silicate surface anti-fouling and plugging additive for thermal power plants to solve the problem of salt scale and crystallization caused by the residue of color developer ammonium molybdate and reducing agent ferrous ammonium sulfate in the flow path. Problems that cause blockages in the flow path

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An on-line silicate surface anti-fouling plugging additive for a thermal power plant comprises additive A for ammonium molybdate solution and additive B for ferrous ammonium sulfate solution.

[0029] Additive A includes the following components in parts by weight: 85.0 parts of 30% pure ammonia water and 15 parts of sodium tetradecyl sulfonate. Mix the prepared additive A with the ammonium molybdate solution at a volume ratio of 1:100, and control the pH value of the solution within the range of 8.0 to 9.0.

[0030] Additive B includes the following components in parts by weight: 50.0 parts of preservative and 50.0 parts of deionized water solvent. Mix the formulated additive B with the ferrous ammonium sulfate solution at a volume ratio of 1:20.

[0031] The above-mentioned chemicals are of superior grade, and the deionized water is silicon-free secondary desalinated water or above grade pure water.

Embodiment 2

[0033] An on-line silicate surface anti-fouling plugging additive for a thermal power plant comprises additive A for ammonium molybdate solution and additive B for ferrous ammonium sulfate solution.

[0034] Additive A includes the following components in parts by weight: 80.0 parts of 30% pure ammonia water and 10 parts of sodium pentadecyl sulfonate. Mix the prepared additive A with the ammonium molybdate solution at a volume ratio of 1:100, and control the pH value of the solution within the range of 8.0 to 9.0.

[0035] Additive B includes the following components in parts by weight: 55.0 parts of preservative and 45.0 parts of deionized water solvent. Mix the formulated additive B with the ferrous ammonium sulfate solution at a volume ratio of 1:20.

[0036] The above-mentioned chemicals are of superior grade, and the deionized water is silicon-free secondary desalinated water or above grade pure water.

Embodiment 3

[0038] An on-line silicate surface anti-fouling plugging additive for a thermal power plant comprises additive A for ammonium molybdate solution and additive B for ferrous ammonium sulfate solution.

[0039] Additive A includes the following components in parts by weight: 870.0 parts of 30% pure ammonia water and 13 parts of sodium hexadecyl sulfonate. Mix the prepared additive A with the ammonium molybdate solution at a volume ratio of 1:100, and control the pH value of the solution within the range of 8.0 to 9.0.

[0040] Additive B includes the following components in parts by weight: 60.0 parts of preservative and 40.0 parts of deionized water solvent. Mix the formulated additive B with the ferrous ammonium sulfate solution at a volume ratio of 1:20.

[0041] The above-mentioned chemicals are of superior grade, and the deionized water is silicon-free secondary desalinated water or above grade pure water.

[0042] The on-line silicate surface anti-fouling and plugging add...

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PUM

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Abstract

The invention discloses an anti-fouling and anti-blocking additive for an online silicate meter of a thermal power plant. The additive comprises an additive A which is added into an ammonium molybdatesolution to improve the alkalization degree of the solution, and an additive B which is added into an ammonium ferrous sulfate solution to inhibit microorganism propagation. The additive A mainly comprises the following components in parts by weight: 85.0-90 parts of a dissolving agent and 10-15 parts of an anionic surfactant, and the total weight parts of the raw materials are 100.0 parts; and the additive B mainly comprises the following components in parts by weight: 50.0-60.0 parts of a preservative and the balance of a deionized water solvent, and the total weight parts of the raw materials are 100.0 parts. The anti-fouling and anti-blocking additive for the on-line silicate meter reduces pipeline blockage in the online silicate meter, reduces the maintenance and overhaul workload ofan enterprise on the silicate meter, reduces the cost of pipeline replacement, greatly improves the input rate and the percent of pass of the online silicate meter, and has very obvious benefits.

Description

technical field [0001] The invention relates to the technical field of instrument maintenance in the electric power industry, in particular to an anti-fouling and plugging additive for the on-line silicate radical surface of a thermal power plant. Background technique [0002] With the increasing development of the electric power industry, high-parameter, large-capacity generating sets are increasing, and the level of water vapor quality supervision and control in the thermal system directly affects the safe operation and energy consumption level of generating sets. Accurate monitoring of water vapor quality of generating units is a necessary means to ensure safe and economical operation of generating units. [0003] In terms of soda water supervision, the boiler water quality can be judged by monitoring the silicate content of the steam drum boiler water, and based on this, the continuous blowdown opening of the boiler and the time and frequency of scheduled blowdown blowdo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/78G01N21/27
CPCG01N21/78G01N21/27
Inventor 杨传杨慧霞孙聆菱龙潇
Owner 河北建投能源科学技术研究院有限公司
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