CN203342246U - Dry fire barrier for coal mine gas delivery pipeline - Google Patents
Dry fire barrier for coal mine gas delivery pipeline Download PDFInfo
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- CN203342246U CN203342246U CN 201320427864 CN201320427864U CN203342246U CN 203342246 U CN203342246 U CN 203342246U CN 201320427864 CN201320427864 CN 201320427864 CN 201320427864 U CN201320427864 U CN 201320427864U CN 203342246 U CN203342246 U CN 203342246U
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- cylinder body
- coal mine
- cylindrical shell
- hand cylinder
- cross fixed
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Abstract
The utility model discloses a dry fire barrier for a coal mine gas delivery pipeline. The dry fire barrier comprises a left cylinder body and a right cylinder body which are in the coaxial direction and are detachably connected, wherein a left cross fixed plate is arranged at the right end of the left cylinder body, a right cross fixed plate is arranged at the left end of the right cylinder body, a corrugated ribbon fire retardance core is arranged between the left cross fixed plate and the right cross fixed plate, the left cylinder body is internally provided with a dustproof net, a slagging port at the left side of the dustproof net is formed at the lower part of the left cylinder body, and a sealing plate is arranged at the slagging port. The dry fire barrier has a reasonable design, a simple structure, and good sealing performance, is easy to disassemble, is safe and reliable, is convenient to operate and maintain, and can be used for effectively reducing loss caused by gas explosion.
Description
Technical field
The utility model belongs to the Safety of Coal Mine Production technical field, particularly a kind of coal mine gas conveyance conduit dry-type fire resisting device.
Background technology
Coal mine light concentration mash gas refers to that methane concentration is greater than 6%, the coal mine gas lower than 30%.Within its year, the extraction total amount is about 2,500,000,000 m3, accounts for 11% of coal mine gas total amount, and this part gas, substantially in emptying state, has not only caused pollution to environment, also makes the wasting of resources.
Given this and the lifting of low concentration gas conveying technology, national security production supervision general bureau was revised " safety regulations in coal mine " on March 1st, 2010, and appearance " coal mine light concentration mash gas pipeline delivery safety safeguards system design specification " and a series of security technology standard such as " coal mine light concentration mash gas and thin water smoke mixed security conveying device technical specification ", wherein gas tube dry-type fire resisting device performance is also proposed to stricter requirement: back-fire relief limit velocity 2263m/s, safe back-fire relief speed 1820m/s, case pres-sure 2.0Mpa, back-fire relief bump is more than 13 times, traditional metal mesh type spark arrester can not meet the actual techniques requirement fully for this reason, need badly and improved.
The utility model content
The utility model is in order to solve weak point of the prior art, a kind of coal mine gas conveyance conduit dry-type fire resisting device is provided, its flame that can effectively block coal mine gas conveyance conduit explosion time transmits continuously, especially is useful in the low concentration gas conveyance conduit, can meet bump more than 13 times.
For achieving the above object, the utility model proposes following technical scheme: coal mine gas conveyance conduit dry-type fire resisting device, comprise the coaxial left-hand cylinder body removably connected and right cylindrical shell, the right-hand member of left-hand cylinder body is provided with left cross fixed head, the left end of right cylindrical shell is provided with right cross fixed head, between left cross fixed head and right cross fixed head, is provided with the corrugated ribbon fire-retardant core, in the left-hand cylinder body, is provided with Air Filter, the bottom of left-hand cylinder body is provided with the slag-drip opening that is positioned at the Air Filter left side, and the slag-drip opening place is provided with sealing plate.
Described left-hand cylinder body top is provided with the left Pressure gauge that is positioned at the Air Filter left side, and right cylindrical shell top is provided with right Pressure gauge.
Between the docking end face of described left-hand cylinder body and right cylindrical shell, by flange, connect.
Described left-hand cylinder body and right cylindrical shell are reducing pipe, and the left end of left-hand cylinder body is provided with left flange plate, and the right-hand member of right cylindrical shell is provided with right ring flange.
Adopt technique scheme, be connected respectively between gas drainage pipeline, gas suction pump and generator by the utility model and on emptying pipe.In gas drainage system, air-flow is entered by the left end of left-hand cylinder body, through Air Filter, the foreign material such as oarse-grained cinder are filtered in corrugated ribbon fire-retardant core front side, opening sealing plate can regularly remove the gred through slag-drip opening, air-flow enters into right cylindrical shell by the corrugated ribbon fire-retardant core again, by right cylindrical shell right-hand member, is discharged.When security incident occurs, in pipeline, flame, through Air Filter, enters the corrugated ribbon fire-retardant core, because the wall blocking effect of corrugated ribbon fire-retardant core is disconnected fiery pressure drag,, continuing propagation, does not effectively reduce the loss that gas explosion brings.
The corrugated ribbon of corrugated ribbon fire-retardant core adopts 45 ° of twills, and positive and negative bilayer is combined with.Two-layer corrugated ribbon fire-retardant core is arranged between left cross fixed head and right cross fixed head, and middle to adopt bolt to carry out fastening, guarantees that two-layer corrugated ribbon fire-retardant core is combined closely and blast impulse intact.The Air Filter of stainless steel is installed in the upstream of gas flow, can effectively solves coal dust and impurity etc. and block the corrugated ribbon fire-retardant core, guarantee circulation and back-fire relief usefulness that gas is good.Corrugated ribbon fire-retardant core both sides all are equipped with left Pressure gauge and the right Pressure gauge of vacuum type, can effectively observe in real time this gas of pipeline Neva at the pressure of corrugated ribbon fire-retardant core both sides of flowing through, can judge according to pressure differential the congestion situations of fire-retardant core, will be removed the gred when pressure differential is greater than 1Kpa and the corrugated ribbon fire-retardant core is cleaned or changes.Upstream end in gas flow is equipped with slag-drip opening, can, in the situation that spark arrester blocks the processing that removes the gred, without dismounting, reduce labour intensity.
The utility model is reasonable in design, simple in structure, good airproof performance, be easy to dismounting, safe and reliable, convenient operation and maintenance, effectively reduces the loss that gas explosion brings.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, coal mine gas conveyance conduit dry-type fire resisting device of the present utility model, comprise the coaxial left-hand cylinder body 1 removably connected and right cylindrical shell 2, the right-hand member of left-hand cylinder body 1 is provided with left cross fixed head 3, the left end of right cylindrical shell 2 is provided with right cross fixed head 4, the bolt 5 worn by centre between left cross fixed head 3 and right cross fixed head 4 is provided with two-layer corrugated ribbon fire-retardant core 6, be provided with Air Filter 7 in left-hand cylinder body 1, the bottom of left-hand cylinder body 1 is provided with the slag-drip opening 8 that is positioned at Air Filter 7 left sides, and slag-drip opening 8 places are provided with sealing plate 9.
Left-hand cylinder body 1 top is provided with the left Pressure gauge 10 that is positioned at Air Filter 7 left sides, and right cylindrical shell 2 tops are provided with right Pressure gauge 11.
Between the docking end face of left-hand cylinder body 1 and right cylindrical shell 2, by flange, connect.
Left-hand cylinder body 1 and right cylindrical shell 2 are reducing pipe, and the left end of left-hand cylinder body 1 is provided with left flange plate 12, and the right-hand member of right cylindrical shell 2 is provided with right ring flange 13.
When the utility model is used in work, at first just left flange plate 12 and right ring flange 13 are connected in the pipeline in gas drainage system, air-flow is entered by the left end of left-hand cylinder body 1, through Air Filter 7, the foreign material such as oarse-grained cinder are filtered in corrugated ribbon fire-retardant core 6 front sides, open sealing plate 9 and can regularly remove the gred through slag-drip opening 8, air-flow enters into right cylindrical shell 2 by corrugated ribbon fire-retardant core 6 again, by right cylindrical shell 2 right-hand members, is discharged.When security incident occurs, in pipeline, flame, through Air Filter 7, enters corrugated ribbon fire-retardant core 6, because the wall blocking effect of corrugated ribbon fire-retardant core 6 is disconnected fiery pressure drag,, continuing propagation, does not effectively reduce the loss that gas explosion brings.In figure, arrow points is airflow direction.
Claims (4)
1. coal mine gas conveyance conduit dry-type fire resisting device, it is characterized in that: comprise the coaxial left-hand cylinder body removably connected and right cylindrical shell, the right-hand member of left-hand cylinder body is provided with left cross fixed head, the left end of right cylindrical shell is provided with right cross fixed head, be provided with the corrugated ribbon fire-retardant core between left cross fixed head and right cross fixed head, be provided with Air Filter in the left-hand cylinder body, the bottom of left-hand cylinder body is provided with the slag-drip opening that is positioned at the Air Filter left side, and the slag-drip opening place is provided with sealing plate.
2. coal mine gas conveyance conduit dry-type fire resisting device according to claim 1 is characterized in that: described left-hand cylinder body top is provided with the left Pressure gauge that is positioned at the Air Filter left side, and right cylindrical shell top is provided with right Pressure gauge.
3. coal mine gas conveyance conduit dry-type fire resisting device according to claim 1 and 2, is characterized in that: between the docking end face of described left-hand cylinder body and right cylindrical shell, by flange, connect.
4. coal mine gas conveyance conduit dry-type fire resisting device according to claim 1 and 2, it is characterized in that: described left-hand cylinder body and right cylindrical shell are reducing pipe, and the left end of left-hand cylinder body is provided with left flange plate, and the right-hand member of right cylindrical shell is provided with right ring flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320427864 CN203342246U (en) | 2013-07-18 | 2013-07-18 | Dry fire barrier for coal mine gas delivery pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320427864 CN203342246U (en) | 2013-07-18 | 2013-07-18 | Dry fire barrier for coal mine gas delivery pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203342246U true CN203342246U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320427864 Expired - Fee Related CN203342246U (en) | 2013-07-18 | 2013-07-18 | Dry fire barrier for coal mine gas delivery pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203342246U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842389A (en) * | 2017-11-06 | 2018-03-27 | 中煤科工集团重庆研究院有限公司 | Has the gas drainage under suction fire retardant device of self-cleaning function |
| CN108379761A (en) * | 2018-05-02 | 2018-08-10 | 抚顺华油能源设备厂 | Damp spark arrester |
| CN108671443A (en) * | 2018-06-23 | 2018-10-19 | 温州源通阀门管件有限公司 | A kind of Novel fire arrestor |
-
2013
- 2013-07-18 CN CN 201320427864 patent/CN203342246U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107842389A (en) * | 2017-11-06 | 2018-03-27 | 中煤科工集团重庆研究院有限公司 | Has the gas drainage under suction fire retardant device of self-cleaning function |
| CN108379761A (en) * | 2018-05-02 | 2018-08-10 | 抚顺华油能源设备厂 | Damp spark arrester |
| CN108379761B (en) * | 2018-05-02 | 2024-01-26 | 抚顺华油能源设备厂 | Damping flame arrester |
| CN108671443A (en) * | 2018-06-23 | 2018-10-19 | 温州源通阀门管件有限公司 | A kind of Novel fire arrestor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Free format text: FORMER NAME: ZHENGZHOU YUANJIAN COAL MINE EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee before: Zhengzhou Yuanjian Coal Mine Equipment Co., Ltd. |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Xinmi City Town Village 452370 meters persimmon Bay Henan city of Zhengzhou Province Patentee after: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. Address before: Xinmi City Town Village 452300 meters persimmon Bay Henan city of Zhengzhou Province Patentee before: ZHENGZHOU YUANJIAN SAFETY EQUIPMENT CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20180718 |