CN205064880U - Glasses valve voltage -sharing system of blast furnace raw coke oven gas - Google Patents
Glasses valve voltage -sharing system of blast furnace raw coke oven gas Download PDFInfo
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- CN205064880U CN205064880U CN201520857620.7U CN201520857620U CN205064880U CN 205064880 U CN205064880 U CN 205064880U CN 201520857620 U CN201520857620 U CN 201520857620U CN 205064880 U CN205064880 U CN 205064880U
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Abstract
The utility model relates to a glasses valve voltage -sharing system of blast furnace raw coke oven gas, including the coal gas trunk line, the raw coke oven gas of coal gas trunk line one end switch -on blast furnace output, coal gas trunk line other end intercommunication raw coke oven gas diffuses the tower, on the coal gas trunk line, and is provided with butterfly valve and glasses valve in proper order, still includes the other pipeline of coal gas, the other pipeline one end intercommunication of coal gas is between the butterfly valve and glasses valve of coal gas trunk line, and the other pipeline other end of coal gas accesss to the raw coke oven gas diffuses the tower, still be provided with first gate valve, second gate valve and flange joint pipe on the other pipeline of coal gas in proper order. When needing the voltage -sharing, opening the valve and getting into fast from other pipeline by coal gas and diffuse after the raw coke oven gas diffuses tower burning, the voltage -sharing process is safer sooner. Be provided with the twice gate valve on the other pipeline of coal gas, flange joint pipe department can seal with the blank flange, can tackle the circumstances of gate valve wearing and tearing. When the blast furnace damping down overhauld next time, can clear up the maintenance to the twice gate valve, make other pipeline resume original function.
Description
Technical field
The utility model relates to the raw coke oven gas process of blast furnace, particularly a kind of glasses valve balanced pressure system of blast furnace raw gas.
Background technique
The pipeline that blast furnace raw gas leads to raw coke oven gas diffusing tower is disposed with the parts such as butterfly valve, glasses valve.Because raw coke oven gas carries more gas ash, be delivered in the process of raw coke oven gas diffusing tower at coal gas, gas ash can deposit in pipeline.Therefore system often runs a period of time, just there will be gas ash and blocks the situation that butterfly valve makes it fit badly, cause the gas pressure before glasses valve too high, if conditions of blast furnace occurs abnormal, before and after just must carrying out glasses valve, coal gas is all pressed.
The all pressures mode generally adopted at present is, pipeline before glasses valve arranges exhaust stack, open the valve of exhaust stack, coal gas is directly diffused sky, due to coal gas belong to poisonous, inflammable gas, above-mentionedly must slowly to carry out the sky process of diffusing, therefore need to consume the plenty of time, however, the mode of this band gas operation still has very large danger, and to environment.
Model utility content
Technical problem to be solved in the utility model is: the glasses valve balanced pressure system providing a kind of blast furnace raw gas, and coal gas can be avoided to discharge sky.
The utility model solves the technological scheme that its technical problem adopts:
The glasses valve balanced pressure system of blast furnace raw gas, comprise coal gas main pipeline, the raw coke oven gas that blast furnace exports is connected in described coal gas main pipeline one end, the coal gas main pipeline the other end is communicated with raw coke oven gas diffusing tower, on coal gas main pipeline, and along raw coke oven gas on the throughput direction of raw coke oven gas diffusing tower, be sequentially set with butterfly valve and glasses valve, also comprise the other pipeline of coal gas, the other pipeline one end of described coal gas is communicated with between the butterfly valve and glasses valve of coal gas main pipeline, the other pipeline the other end of coal gas leads to described raw coke oven gas diffusing tower, on the other pipeline of described coal gas, and along raw coke oven gas on raw coke oven gas diffusing tower throughput direction, also be sequentially set with the first gate valve, second gate valve and flange connections.
Further, on the other pipeline of described coal gas, and the position of flange connections air inlet side is provided with arm, described arm is provided with arm valve.
Further, described arm is between the first gate valve and the second gate valve, and described arm valve is ball valve.
The beneficial effects of the utility model are: the glasses valve balanced pressure system of this blast furnace raw gas, the other pipeline of coal gas is communicated with in the glasses valve front end of coal gas main pipeline, the other pipeline of coal gas is in parallel with coal gas main pipeline, when needing all to press, the valve opening the other pipeline of coal gas diffuses after other pipeline enters the burning of raw coke oven gas diffusing tower by coal gas.The other pipeline of coal gas is provided with twice gate valve, when one gate valve is subject to dust wearing and tearing, by another road gate valve closing duct, if twice gate valve all damages, can closes at flange connections blank flange.During blast furnace staying maintenance next time, nitrogen can be passed into from arm and the coal gas in other pipeline is discharged, then cleaning maintenance be carried out to twice gate valve, make the function that other pipeline recovers original.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of glasses valve balanced pressure system of blast furnace raw gas of the present utility model;
In figure, reference character is: other pipeline 2, first gate valve 21 of coal gas main pipeline 1, butterfly valve 11, glasses valve 12, coal gas, arm 22, arm valve 221, second gate valve 23, flange connections 24, raw coke oven gas diffusing tower 3.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated:
The glasses valve balanced pressure system of blast furnace raw gas, comprise coal gas main pipeline 1, the raw coke oven gas that blast furnace exports is connected in described coal gas main pipeline 1 one end, coal gas main pipeline 1 the other end is communicated with raw coke oven gas diffusing tower 3, on coal gas main pipeline 1, and along raw coke oven gas on the throughput direction of raw coke oven gas diffusing tower 3, be sequentially set with butterfly valve 11 and glasses valve 12, also comprise the other pipeline 2 of coal gas, other pipeline 2 one end of described coal gas is communicated with between the butterfly valve 11 and glasses valve 12 of coal gas main pipeline 1, other pipeline 2 the other end of coal gas leads to described raw coke oven gas diffusing tower 3, on the other pipeline 2 of described coal gas, and along raw coke oven gas on raw coke oven gas diffusing tower 3 throughput direction, also be sequentially set with the first gate valve 21, second gate valve 23 and flange connections 24.
As shown in Figure 1: the glasses valve balanced pressure system of blast furnace raw gas of the present utility model, be provided with the other pipeline 2 of the coal gas in parallel with coal gas main pipeline 1, the first gate valve 21 on the other pipeline 2 of coal gas can be in normally open, second gate valve 23 is in normally off, namely flange connections 24 is one section of dismountable pipeline, and its two ends adopt Flange joint.
When a large amount of dust accumulation, butterfly valve 11 cannot cut out completely, before glasses valve 12, gas pressure increases, now need all to press, can open the second gate valve 23, then the coal gas before glasses valve 12 flows into raw coke oven gas diffusing tower 3 from the other pipeline 2 of coal gas fast under pressure promotes, and raw coke oven gas diffusing tower 3 has special flare system, can discharge after gas firing, reduce the pollution to environment.Whole equal press operation process is more quick relative to traditional approach, safety, environmental protection.
Due in raw coke oven gas with a large amount of dust, easily cause gate valve to wear and tear when Gas Flow crosses gate valve, under normal circumstances, in order to extend gate valve working life, each all press operations, only need continue the short period after being opened by the second gate valve 23, such as 1 ~ 3 second, just the second gate valve 23 can be closed.
If there is the problem be not closed completely because of wearing and tearing in the second gate valve 23, then can close the first gate valve 21 other for coal gas pipeline 2 is closed, first gate valve 21 is equivalent to the standby valve of the second gate valve 23, when preventing the second gate valve 23 to lose efficacy, coal gas is uncontrolled flows to raw coke oven gas diffusing tower 3 from the other pipeline 2 of coal gas.
If the first gate 21 is the problem be not closed completely because dust weares and teares also, then the flange connections 24 of other for coal gas pipeline 2 can be pulled down, change blank flange, other for coal gas pipeline 2 is shut completely, when next blast furnace staying Maintenance and Repair, do gate valve cleaning or replacing process on the other pipeline 2 of coal gas again, make the other pipeline 2 of coal gas recover original function.
Further, during aforesaid blast furnace staying Maintenance and Repair, for changing the other pipeline 2 of coal gas that blank flange shuts, its pipe interior has also retained part coal gas, in order to handling safety, carries out operation again after needing residual gas in pipeline to discharge.Therefore preferred, can be on the other pipeline 2 of described coal gas, and the position of flange connections 24 air inlet side is provided with arm 22, described arm 22 be provided with arm valve 221.
The source nitrogen of outside can be connected arm 22, open arm valve 221, then the coal gas in other for coal gas pipeline 2 can be discharged by outside nitrogen pressure.Arm 22 is arranged on the position near flange connections 24, is namely as far as possible near flange connections 24, farthest all can discharge the coal gas in the other pipeline 2 of coal gas like this.
Arm 22 can be that to press close to be arranged on flange connections 24 other, and also can be embodiment as shown in Figure 1, described arm 22 be between the first gate valve 21 and the second gate valve 23.
Described arm valve 221 can be preferably ball valve.
Claims (3)
1. the glasses valve balanced pressure system of blast furnace raw gas, comprise coal gas main pipeline (1), the raw coke oven gas that blast furnace exports is connected in described coal gas main pipeline (1) one end, coal gas main pipeline (1) the other end is communicated with raw coke oven gas diffusing tower (3), on coal gas main pipeline (1), and along raw coke oven gas on the throughput direction of raw coke oven gas diffusing tower (3), be sequentially set with butterfly valve (11) and glasses valve (12), it is characterized in that, also comprise the other pipeline (2) of coal gas, other pipeline (2) one end of described coal gas is communicated with between the butterfly valve (11) and glasses valve (12) of coal gas main pipeline (1), other pipeline (2) the other end of coal gas leads to described raw coke oven gas diffusing tower (3), on the other pipeline (2) of described coal gas, and along raw coke oven gas on raw coke oven gas diffusing tower (3) throughput direction, also be sequentially set with the first gate valve (21), second gate valve (23) and flange connections (24).
2. the glasses valve balanced pressure system of blast furnace raw gas as claimed in claim 1, it is characterized in that, on the other pipeline (2) of described coal gas, and the position of flange connections (24) air inlet side is provided with arm (22), described arm (22) is provided with arm valve (221).
3. the glasses valve balanced pressure system of blast furnace raw gas as claimed in claim 2, it is characterized in that, described arm (22) is positioned between the first gate valve (21) and the second gate valve (23), and described arm valve (221) is ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857620.7U CN205064880U (en) | 2015-10-30 | 2015-10-30 | Glasses valve voltage -sharing system of blast furnace raw coke oven gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520857620.7U CN205064880U (en) | 2015-10-30 | 2015-10-30 | Glasses valve voltage -sharing system of blast furnace raw coke oven gas |
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| CN205064880U true CN205064880U (en) | 2016-03-02 |
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| CN201520857620.7U Active CN205064880U (en) | 2015-10-30 | 2015-10-30 | Glasses valve voltage -sharing system of blast furnace raw coke oven gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355456A (en) * | 2018-12-26 | 2019-02-19 | 无锡雪浪环境科技股份有限公司 | A kind of converter coal gas purification recycles and combines the device and application method of final dusting |
| CN113623455A (en) * | 2020-05-07 | 2021-11-09 | 上海梅山钢铁股份有限公司 | Gas glasses valve operation tool with warning and monitoring functions |
| CN115491449A (en) * | 2022-09-21 | 2022-12-20 | 攀钢集团攀枝花钢钒有限公司 | Novel blast furnace raw gas diffusing tower and operation method thereof |
-
2015
- 2015-10-30 CN CN201520857620.7U patent/CN205064880U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355456A (en) * | 2018-12-26 | 2019-02-19 | 无锡雪浪环境科技股份有限公司 | A kind of converter coal gas purification recycles and combines the device and application method of final dusting |
| CN113623455A (en) * | 2020-05-07 | 2021-11-09 | 上海梅山钢铁股份有限公司 | Gas glasses valve operation tool with warning and monitoring functions |
| CN115491449A (en) * | 2022-09-21 | 2022-12-20 | 攀钢集团攀枝花钢钒有限公司 | Novel blast furnace raw gas diffusing tower and operation method thereof |
| CN115491449B (en) * | 2022-09-21 | 2024-04-19 | 攀钢集团攀枝花钢钒有限公司 | Novel blast furnace raw gas diffusing tower and operation method thereof |
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