CN202465593U - Device for preventing negative pressure from being formed in coke oven gas main pipe - Google Patents
Device for preventing negative pressure from being formed in coke oven gas main pipe Download PDFInfo
- Publication number
- CN202465593U CN202465593U CN2012201172637U CN201220117263U CN202465593U CN 202465593 U CN202465593 U CN 202465593U CN 2012201172637 U CN2012201172637 U CN 2012201172637U CN 201220117263 U CN201220117263 U CN 201220117263U CN 202465593 U CN202465593 U CN 202465593U
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- coke
- oven gas
- gas
- nitrogen
- responsible
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Abstract
The utility model discloses a device for preventing a negative pressure from being formed in a coke oven gas main pipe. The device comprises a coke oven gas main pipe, wherein the coke oven gas main pipe is communicated with a negative pressure-preventing nitrogen pressurizer. The negative pressure-preventing nitrogen pressurizer comprises a nitrogen pipeline, wherein the nitrogen pipeline is communicated with the coke oven gas main pipe, a coal gas control valve is arranged on the nitrogen pipeline at the joint with the coke oven gas main pipe, and a nitrogen control valve, a nitrogen pipeline cleaning valve and a coal gas pressure measuring port are respectively arranged on the nitrogen pipeline. The device can ensure that the coke oven gas operation is always in a positive pressure state, realizes safety operation of coal gas, and effectively prevents from negative pressure back draft of a coal gas heating device.
Description
Technical field
The utility model relates to a kind of coke-oven gas that prevents and is responsible for the formation means for applying negative.
Background technology
At present; The certain pressure that coke oven mainly leans on coal gas to be responsible for is realized the coke oven normal heating, like the coke-oven gas source difficulty takes place, and the X worker is through the manual reverse of direction of X or the manual setter of X; Stop heating operation; The weak point of this device has: the one,, X manually stopped the coal gas manipulation require 1.5-2 minute, manual setter stopped coal gas operation 10-15 minute; And the coke-oven gas person in charge can form negative pressure sometimes at 3 minutes; The negative-pressure operation of water back >=800mm very easily causes the back draft of water back negative pressure, and the negative pressure that coal gas is responsible for might also cause gas main and change the negative pressure of product pipeline, and safety operation brings serious harm to coke oven.The 2nd; As meeting the situation of stating, the post worker can only shorten the treatment time as much as possible, the washing pipe road operation that negative pressure is closed coke-oven gas main pipe pressure and recovery heating earlier occurs if coke-oven gas is responsible for; Do not realize the heating prevention and control measure of essential meaning; And heat preceding washing pipe road operation and can only be responsible for towards coal gas after the preheater, and can not can't guarantee the security of gas delivery towards the pipeline of the gas main before the preheater.
Summary of the invention
The purpose of the utility model is for overcoming the deficiency of above-mentioned prior art; Provide a kind of coke-oven gas that prevents to be responsible for the formation means for applying negative; This device can guarantee that the coke-oven gas operation remains barotropic state, realizes the safety operation of coal gas, effectively prevents the back draft of gas-fired heating unit negative pressure.
For realizing above-mentioned purpose, the utility model adopts following technical proposals:
A kind of coke-oven gas that prevents is responsible for the formation means for applying negative, comprises the coke-oven gas person in charge, is communicated with anti-negative pressure nitrogen pressurizer on said coke-oven gas is responsible for.
Said anti-negative pressure nitrogen pressurizer comprises nitrogen pipeline; Said nitrogen pipeline is responsible for coke-oven gas and is communicated with; And the nitrogen pipeline of said both junctions is provided with the control valve for coal gas door, also is respectively equipped with nitrogen by-pass valve control, nitrogen pipeline cleaning valve and gas pressure pressure taps on the nitrogen pipeline.
Said coke-oven gas is responsible for and is provided with coal gas person in charge valve, and coke-oven gas is responsible for through preheater and is linked to each other with coke oven gas pipe.
Said coke-oven gas is communicated with some gas transverse pipes that laterally arrange on being responsible for.
The utility model is employed in the coke-oven gas appropriate department the anti-negative pressure nitrogen pressurizer of the coal gas person in charge is installed, and is connected with this coal gas person in charge, and the gas valve switch is set up in the junction.This coal gas is responsible for the nitrogen pressurizer and is comprised: nitrogen by-pass valve control, nitrogen pipeline, control valve for coal gas door, nitrogen pipeline cleaning valve, gas pressure pressure taps.When gas pressure just often, the nitrogen by-pass valve control is closed, the control valve for coal gas door is in full-gear; The nitrogen purge valve is in closing condition, and be full of coal gas from the nitrogen by-pass valve control this moment in control valve for coal gas door pipeline, when the coal gas source takes place at need; Open the nitrogen by-pass valve control, close coal gas and be responsible for valve, at this moment; Nitrogen gets into the coke-oven gas person in charge by the nitrogen by-pass valve control through nitrogen purge valve and control valve for coal gas behind the door, thereby guarantees the barotropic state that coke-oven gas is responsible for, and has prevented the possibility that causes the gas line tempering to blast because of coal gas moment negative pressure; Reach the purpose of safety operation; Remain malleation because of pipeline simultaneously, when recovering heating again, reduce the coal gas time swap, reduce because of stopping to heat the influence that coke oven temperature is caused.
Description of drawings
Fig. 1 is the utility model structural representation;
Wherein 1. preheaters, 2. coke oven gas pipe, 3. blast furnace gas pipeline, 4. flue; 5. nitrogen by-pass valve control, 6. control valve for coal gas door, 7. gas transverse pipe; 8. coke-oven gas is responsible for, 9. nitrogen pipeline cleaning valve, 10. nitrogen pipeline; 11. coal gas is responsible for valve, 12. gas pressure pressure taps, the cock of 13 blast furnace gases plus-minus.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
As shown in Figure 1, prevent that the coke-oven gas person in charge from forming means for applying negative, comprise the coke-oven gas person in charge 8, said coke-oven gas is responsible for and is communicated with anti-negative pressure nitrogen pressurizer on 8.Anti-negative pressure nitrogen pressurizer comprises nitrogen pipeline 10; Said nitrogen pipeline 10 is responsible for 8 with coke-oven gas and is communicated with; And the nitrogen pipeline 10 of said both junctions is provided with control valve for coal gas door 6, also is respectively equipped with nitrogen by-pass valve control 5, nitrogen pipeline cleaning valve 9 and gas pressure pressure taps 12 on the nitrogen pipeline 10.
Coke-oven gas is responsible for 8 and is provided with coal gas person in charge valve 11, and coke-oven gas the person in charge 8 link to each other with coke oven gas pipe 2 through preheater 1.Coke-oven gas is responsible on 8 and is communicated with some gas transverse pipes that laterally arrange 7.The outside of the coke-oven gas person in charge 8 and gas transverse pipe 7 is provided with blast furnace gas pipeline 3, and blast furnace gas pipeline 3 outsides are flue 4, and is provided with the cock 13 of blast furnace gas plus-minus between blast furnace gas pipeline 3 and the flue.
When gas pressure just often, nitrogen by-pass valve control 5 is closed, control valve for coal gas door 6 is in full-gear; Nitrogen purge valve 9 is in closing condition, and be full of coal gas from nitrogen by-pass valve control 5 this moment in control valve for coal gas door 6 pipelines, when the coal gas source takes place at need; Open nitrogen by-pass valve control 5, close coal gas and be responsible for valve 11, at this moment; Nitrogen gets into coke-oven gas through nitrogen purge valves 9 with control valve for coal gas door 6 backs by nitrogen by-pass valve control 5 and is responsible for 2, thereby guarantees that coke-oven gas is responsible for 3 barotropic state, prevented because of coal gas moment negative pressure cause that the gas line tempering blasts maybe; Reach the purpose of safety operation; Remain malleation because of pipeline simultaneously, when recovering heating again, reduce the coal gas time swap, reduce because of stopping to heat the influence that coke oven temperature is caused.
Though the above-mentioned accompanying drawing that combines is described the embodiment of the utility model; But be not restriction to the utility model protection domain; One of ordinary skill in the art should be understood that; On the basis of the technical scheme of the utility model, those skilled in the art need not pay various modifications that creative work can make or distortion still in the protection domain of the utility model.
Claims (4)
1. one kind prevents that the coke-oven gas person in charge from forming means for applying negative, comprises the coke-oven gas person in charge, it is characterized in that, is communicated with anti-negative pressure nitrogen pressurizer on said coke-oven gas is responsible for.
2. the coke-oven gas that prevents as claimed in claim 1 is responsible for the formation means for applying negative; It is characterized in that; Said anti-negative pressure nitrogen pressurizer comprises nitrogen pipeline; Said nitrogen pipeline and coke-oven gas are responsible for and are communicated with, and the nitrogen pipeline of said both junctions is provided with the control valve for coal gas door, also are respectively equipped with the nitrogen by-pass valve control on the nitrogen pipeline, nitrogen pipeline cleans valve and gas pressure pressure taps.
3. according to claim 1 or claim 2 the coke-oven gas that prevents be responsible for to form means for applying negative, it is characterized in that, said coke-oven gas is responsible for and is provided with coal gas and is responsible for valve, and coke-oven gas is responsible for through preheater and is linked to each other with coke oven gas pipe.
4. the coke-oven gas that prevents as claimed in claim 3 is responsible for the formation means for applying negative, it is characterized in that said coke-oven gas is communicated with some gas transverse pipes that laterally arrange on being responsible for.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201172637U CN202465593U (en) | 2012-03-18 | 2012-03-18 | Device for preventing negative pressure from being formed in coke oven gas main pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201172637U CN202465593U (en) | 2012-03-18 | 2012-03-18 | Device for preventing negative pressure from being formed in coke oven gas main pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202465593U true CN202465593U (en) | 2012-10-03 |
Family
ID=46913771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201172637U Expired - Fee Related CN202465593U (en) | 2012-03-18 | 2012-03-18 | Device for preventing negative pressure from being formed in coke oven gas main pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202465593U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618302A (en) * | 2012-03-18 | 2012-08-01 | 莱芜市泰山焦化有限公司 | Device for preventing coke oven gas main pipe from forming negative pressure and using method thereof |
| CN103614502A (en) * | 2013-10-26 | 2014-03-05 | 芜湖新兴铸管有限责任公司 | Gas-holder-free single blast furnace produced gas pipe network |
-
2012
- 2012-03-18 CN CN2012201172637U patent/CN202465593U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618302A (en) * | 2012-03-18 | 2012-08-01 | 莱芜市泰山焦化有限公司 | Device for preventing coke oven gas main pipe from forming negative pressure and using method thereof |
| CN103614502A (en) * | 2013-10-26 | 2014-03-05 | 芜湖新兴铸管有限责任公司 | Gas-holder-free single blast furnace produced gas pipe network |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150318 |
|
| EXPY | Termination of patent right or utility model |