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Method for measuring dust concentration at deduster inlet

A technology of dust concentration and dust collector, applied in the environmental protection field of coal-fired power plants, can solve problems such as increasing test errors, and achieve the effects of extending the load time period, reducing test costs, and improving the level of environmental protection technology.

Pending Publication Date: 2020-09-01
STATE GRID HEBEI ELECTRIC POWER RES INST +2
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Problems solved by technology

Experimenters are under time pressure to reduce the measurement time of data, which often increases the experimental error

Method used

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  • Method for measuring dust concentration at deduster inlet
  • Method for measuring dust concentration at deduster inlet
  • Method for measuring dust concentration at deduster inlet

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The following is an example of dust concentration test at the dust collector inlet of a boiler under low and medium load.

[0054] A boiler is tested for the dust concentration of the dust collector on the A side. The overall process of the test is shown in the appendix figure 1 ,include:

[0055] ① Dust concentration test at the inlet of the dust collector under high load.

[0056] ② Collection of relevant parameters of the dust collector under low and medium loads.

[0057] ③ Flue gas volume correction and dust volume correction calculation. The amount of flue gas and dust is corrected according to the relevant parameters of the dust collector under low and medium loads and the dust test results at the inlet of the dust collector under high loads.

[0058] ④ Calculation of the dust concentration at the inlet of the low-load dust collector.

[0059] The test procedure of the dust concentration at the inlet of the dust collector under high load is shown in the attac...

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Abstract

The invention relates to a method for measuring dust concentration at an inlet of a dust remover. The method comprises a method for measuring the dust concentration at the inlet of the dust remover under medium-low load; a method for correcting the result of the dust concentration at the inlet of the dust remover measured by the high load to the dust concentration at the inlet of the dust removerunder the low load; and a simplified method for correcting the dust concentration result of the inlet of the dust remover measured by the high load to the dust concentration of the inlet of the dust remover under the low load. The calculation method creatively provides a method capable of carrying out a test under medium and low loads and calculating the dust concentration at the inlet of the dustremover according to the material balance and ash balance principle in the raw coal combustion process of the power station boiler.

Description

technical field [0001] The invention belongs to the technical field of environmental protection of coal-fired power stations, and in particular relates to a method for measuring the dust concentration at the inlet of a dust collector. Background technique [0002] Dust collector is one of the most important environmental protection equipment in coal-fired boilers. Dust removal efficiency is an important parameter to characterize the operating characteristics of the dust collector, and the dust collector efficiency test is an important test item for the environmental protection of power plant boilers. Through the dust collector efficiency test, we can understand the operating characteristics of the dust collector, understand its safe operation status and its ability. [0003] In general, the efficiency test of the dust collector must measure the dust concentration at the inlet and outlet of the dust collector at the same time. When measuring the concentration at the inlet o...

Claims

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Application Information

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IPC IPC(8): G01N15/06
CPCG01N15/06
Inventor 贾永会刘志强汪潮洋马登卿张勇胜刘文献张万德
Owner STATE GRID HEBEI ELECTRIC POWER RES INST
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