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A method and system for treating air leakage of a rotary valve

A technology of rotary valve and dust removal system, applied in the field of flue gas purification, can solve the problems of inability to immediately stop for maintenance, invisible rotary valve, deformation of rotary valve blades, etc., to achieve the effect of low investment cost, guarantee rationality, and avoid corrosion and blockage

Active Publication Date: 2021-07-20
ZHONGYE-CHANGTIAN INT ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The inside of the rotary valve cannot be seen. How do you find that the blades of the rotary valve are deformed and the air leakage is serious?
[0006] (2) The rotary valve has an abnormal situation and cannot be shut down for maintenance immediately. How to deal with the air leakage problem before the main engine shuts down? While dealing with the problem of air leakage, it is required to be free from pollution and no condensation to block the pipeline

Method used

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  • A method and system for treating air leakage of a rotary valve
  • A method and system for treating air leakage of a rotary valve
  • A method and system for treating air leakage of a rotary valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] Such as image 3 As shown, a method for judging air leakage of a rotary valve, the method includes the following steps:

[0149] 1) The flue gas enters the adsorption tower 1 through the original flue gas transportation pipeline L0, and is discharged after being adsorbed and purified by the activated carbon in the adsorption tower 1; the activated carbon that has adsorbed the pollutants in the flue gas enters the conveyor 3 through the rotary valve 2 at the bottom of the adsorption tower 1 ;

[0150] 2) At the initial stage of operation of the rotary valve 2, record the initial frequency F of the fan motor of the dust removal system 4 connected to the conveyor 3 0 Or record the initial flow Q of the flow meter 11 on the delivery pipeline connecting the conveyor 3 and the dust removal system 4 0 , and record the initial pressure P of the pressure gauge 5 installed on the conveyor 3 and located downstream of the discharge of the rotary valve 2 0 ;

[0151] 3) The rota...

Embodiment 2

[0153] Such as image 3 As shown, a method for judging air leakage of a rotary valve, the method includes the following steps:

[0154] 1) The flue gas enters the adsorption tower 1 through the original flue gas transportation pipeline L0, and is discharged after being adsorbed and purified by the activated carbon in the adsorption tower 1; the activated carbon that has adsorbed the pollutants in the flue gas enters the conveyor 3 through the rotary valve 2 at the bottom of the adsorption tower 1 ;

[0155] 2) At the initial stage of operation of the rotary valve 2, record the initial frequency F of the fan motor of the dust removal system 4 connected to the conveyor 3 0 Or record the initial flow Q of the flow meter 11 on the delivery pipeline connecting the conveyor 3 and the dust removal system 4 0 , and record the initial pressure P of the pressure gauge 5 installed on the conveyor 3 and located downstream of the discharge of the rotary valve 2 0 ;

[0156] 3) The rota...

Embodiment 3

[0158] Such as image 3 As shown, a method for judging air leakage of a rotary valve, the method includes the following steps:

[0159] 1) The flue gas enters the adsorption tower 1 through the original flue gas transportation pipeline L0, and is discharged after being adsorbed and purified by the activated carbon in the adsorption tower 1; the activated carbon that has adsorbed the pollutants in the flue gas enters the conveyor 3 through the rotary valve 2 at the bottom of the adsorption tower 1 ;

[0160] 2) At the initial stage of operation of the rotary valve 2, record the initial frequency F of the fan motor of the dust removal system 4 connected to the conveyor 3 0 Or record the initial flow Q of the flow meter 11 on the delivery pipeline connecting the conveyor 3 and the dust removal system 4 0 , and record the initial pressure P of the pressure gauge 5 installed on the conveyor 3 and located downstream of the discharge of the rotary valve 2 0 ;

[0161] 3) The rota...

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Abstract

A method for judging air leakage of a rotary valve, the method comprising the following steps: 1) flue gas enters an adsorption tower, is discharged after being adsorbed and purified by activated carbon in the adsorption tower; The valve enters the conveyor; 2) At the initial stage of operation of the rotary valve, record the frequency F of the fan motor of the dust removal system connected to the conveyor 0 , and the display value P of the pressure gauge set on the conveyor 0 ;3) The rotary valve continues to run, keep the value of the pressure gauge unchanged, and observe the change of the fan motor frequency of the dust removal system; set the range of change of the fan motor frequency of the dust removal system, if the change of the fan motor frequency of the dust removal system is within the set Within the range of frequency variation, the rotary valve is in normal operation, continue to observe; if the frequency change of the fan motor of the dust removal system exceeds the set frequency variation range, it is determined that the rotary valve is leaking air. The method is simple to operate and can effectively judge whether the rotary valve has air leakage.

Description

technical field [0001] The invention relates to a treatment method for air leakage of a rotary valve of an activated carbon system and a treatment system for air leakage of a rotary valve, belonging to the technical field of flue gas purification. Background technique [0002] After the sintering flue gas passes through the main exhaust fan, the discharge temperature is about 110-170 ° C, which contains SO 2 , NO x , dust, dioxins, heavy metals and other pollutants, and the activated carbon flue gas purification technology is just suitable for the sintering flue gas temperature emission range, which can realize the synergistic and efficient purification of multiple pollutants, and can simultaneously remove a variety of pollutants on a set of equipment Pollutants, achieving by-product SO 2 The utilization of resources, and this technology has the advantages of high pollutant removal efficiency, basically no consumption of water resources, and no secondary pollution. The ac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/02G01M3/28
CPCB01D53/02B01D2253/102B01D2259/40005G01M3/2876
Inventor 魏进超李俊杰傅旭明
Owner ZHONGYE-CHANGTIAN INT ENG CO LTD
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