CN101176813A - Bidirectional flame arrester - Google Patents
Bidirectional flame arrester Download PDFInfo
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- CN101176813A CN101176813A CNA2007101910841A CN200710191084A CN101176813A CN 101176813 A CN101176813 A CN 101176813A CN A2007101910841 A CNA2007101910841 A CN A2007101910841A CN 200710191084 A CN200710191084 A CN 200710191084A CN 101176813 A CN101176813 A CN 101176813A
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Abstract
The invention relates to a bidirectional flame arrester, which is characterized in that: an upper airflow channel and a lower airflow channel are arranged; a flat valve core capability for moving bidirectionally along the airflow direction is arranged at the central section of the upper airflow channel; a blanking plate is arranged at two sides of the flat valve core respectively; a round channel is arranged on the blanking plate; the upper airflow channel is a water-sealed channel and is connected under the upper airflow channel; a water injection valve, a reject valve and a water cavity communicated with the upper airflow channel are arranged in the lower airflow channel respectively, and a lower water discharge device is arranged at the bottom of the lower airflow channel. The invention has the advantages that: the invention can be applied to places such as the joint of the uphill main pipe of the mining area and the mining pipe branch of the underground working surface, the uphill lower port of the mining area, the shaft station, and the lower port of standpipes from the ground to underground; fire arresting, water discharging and slag discharging can be realized; the catastrophe can be controlled within the minimum scope due to multilevel fire arresting when the catastrophe occurs.
Description
Technical field
The present invention relates to be applied in bidirectional flame arrester in the underground gas extraction pipeline in the coal mining, before specifically being arranged on down-hole mining working face extraction arm and district rise main and closing stubble point, at the district rise end opening, in the shaft station, on ground to the bidirectional flame arrester of the positions such as standpipe end opening of down-hole, so that the underground gas extraction pipe network is divided into block, make it separate, in case catastrophe takes place to realize multistage back-fire relief, catastrophe is controlled at minimum zone.
Background technology:
Gas density in the underground gas extraction pipeline often is in the gas explosion interval range.Permanent or the down-hole mobile system in ground is when adopting wet type extraction pump to carry out gas pumping, gas density in the pipeline is not required, because under the situation of pipeline gas leakage, owing to be the negative pressure extraction, in general gas can not be from the pipe internal leakage outside pipe, and only may air enters in the pipe reduction gas pumping concentration from managing outside, even there is naked light can not propagate in the pipeline in the tunnel, safety does not have significant impact yet.But goaf residual coal spontaneous ignition coal bed drilling catches fire, will make flame propagation enter the gas pumping pipeline, in order to prevent trouble before it happens, strengthen the safety measure of underground gas extraction system, when carrying out the low concentration gas extraction and utilizing, take down-hole catastrophe precautionary measures, the catastrophe that takes place can be controlled at minimum zone.For this reason, need a kind of down-hole back-fire relief release slag-draining device that discharges water, with device be separately positioned on getting working face extraction arm and district rise main close the stubble point before, be arranged on the district rise end opening, be arranged on the shaft station, and the standpipe end opening position that is arranged on ground to down-hole.But, do not have a kind of suitable under-well bi-directional spark arrester so far both at home and abroad.
Summary of the invention:
The present invention is for avoiding above-mentioned existing in prior technology weak point, a kind of under-well bi-directional spark arrester is provided, divide with the block of realizing the underground gas extraction pipe network, make it separate, by multistage back-fire relief catastrophe being controlled at minimum zone.
The technical scheme that technical solution problem of the present invention is adopted is:
Bidirectional flame arrester of the present invention, its feature setting is two gas channels up and down; Wherein,
The middle part of overdraught passage is can be along the two-way mobile dull and stereotyped spool of airflow direction, the both sides of dull and stereotyped spool are respectively established closure plate one, closure plate is provided with circular channel, dull and stereotyped spool has two states, the one, dull and stereotyped spool is between two side stopboards and with two side stopboards and is separated, and the periphery of dull and stereotyped spool and the circular channel in the closure plate form the upper air passage; Another is that dull and stereotyped spool reclines the upper air pathway closure because of impacted with side stopboard formation by air pressure;
The downstream passage is the water seal passage, and is undertaken on the below of upper air passage, in the lower stream of airflow passage, be respectively arranged with water injection valve, overflow pipe, residual cake valve and with the water cavity of upper air channel connection.
Design feature of the present invention also is:
Described dull and stereotyped spool is to be provided with its top suspension suspention.
Automatic tailrace is set in overflow pipe.
The present invention utilizes gas combustion explosion time pressure to be ahead of the principle that flame speed is propagated.Two gas channels up and down are set in device, under the normal condition, gas is by the upper air passage, enter bidirectional flame arrester from the air inlet side, flow through circular channel on air inlet one side stopboard, around the bidirectional plate spool, walk around, the circular channel on the side stopboard of giving vent to anger again, effluent goes out from giving vent to anger.If in the pipeline of air inlet side, produce gas explosion, impact air-flow pressure is during greater than the bidirectional plate spool self-closing pressure value set, the bidirectional plate spool is under impact air-flow promotes, moment is sealed the circular channel on the side stopboard of giving vent to anger, the flame flow of Dao Laiing can only pass through the lower stream of airflow passage subsequently, it is the water seal gas channel, air-flow heads on the water motion in the water cavity, make current enter the lateral line of giving vent to anger prior to air-flow, form column air water group, cut off the flame transmission passage, thereby realize the back-fire relief purpose.
The present invention is provided with overflow pipe simultaneously, and when the water in the inflow water cavity in the pipeline surpassed waterline, water flowed into connected automatic tailrace from overflow pipe, by automatic tailrace unnecessary water was discharged.
Compared with the prior art, beneficial effect of the present invention is embodied in:
1, the present invention has two-way back-fire relief function, and the deslagging that can discharge water, with its be separately positioned on getting working face extraction arm and district rise main close the stubble point before, be arranged on the district rise end opening, be arranged on the shaft station, be arranged on the standpipe end opening position of ground to down-hole, can realize the block division of underground gas extraction pipe network, make it separate, catastrophe is controlled at minimum zone by multistage back-fire relief.
2, the present invention is provided with the two-way valve structure, no matter in the air inlet side or the side pipe road of giving vent to anger catastrophe takes place, can both play the fire arresting effect.
3, the present invention can be arranged in suction side pipeline and the down-hole pipeline, also can be arranged on malleation lateral line and ground gas electricity unit inlet end, can realize between the gas electricity unit and supply air line in when catastrophe takes place, independent each other back-fire relief is controlled at minimum zone with catastrophe.
Description of drawings:
Fig. 1 is a structural representation of the present invention.
Number in the figure: 1 water injection valve, 2 water cavities, 3 residual cake valves, 4 suspensions, 5 spools, 6 closure plates, 7 circular channels, 8 overflow pipes, 9 waterlines.
Below, in conjunction with the accompanying drawings the present invention is further described by the specific embodiment:
The specific embodiment:
Referring to Fig. 1, this bidirectional flame arrester is provided with two gas channels up and down.
The middle part of overdraught passage is can be along the two-way mobile dull and stereotyped spool 5 of airflow direction, the both sides of dull and stereotyped spool 5 are respectively established closure plate 6 one, closure plate 6 is provided with circular channel 7, dull and stereotyped spool 5 has two states, the one, dull and stereotyped spool 5 is between two side stopboards 6 and with two side stopboards 6 and is separated, and the periphery of dull and stereotyped spool 5 and closure plate 6 middle part circular channels form the upper air passage; Another is that dull and stereotyped spool 5 reclines because of impacted with a side stopboard 6 formation by air pressure, and the upper air passage is then closed;
The downstream passage is the water seal passage, and is undertaken on the below of overdraught passage, in the downstream passage, be respectively arranged with water injection valve 1, overflow pipe 8, residual cake valve 3 and with the water cavity 2 of overdraught channel connection, automatic tailrace is set in overflow pipe 8.
The operation principle that discharges water is as follows:
Overflow pipe 8 is connected with its automatic tailrace, and when the water in the inflow water cavity 2 in the pipeline surpassed waterline 9, water flowed into automatic tailrace from overflow pipe 8, with unnecessary water discharging.
In concrete the enforcement, dull and stereotyped spool 5 is to be provided with 4 suspentions of top suspension.
Deslagging is manually to open residual cake valve 3 and to open water injection valve 1 bath deslagging under the state of stopping the supple of gas or steam.
The present invention at first opens water injection valve 1 water filling in device before coming into operation, till the water that overflow pipe 8 flows out makes the automatic tailrace of connection begin to discharge water.Bidirectional flame arrester during normal use, the water in the water cavity 2 can be replenished by the ducted water of extraction, unnecessary water can flow into automatic tailrace discharging by overflow pipe 8.
The present invention can be directly installed in ground gas conveying or the underground gas extraction pipe-line system, designs according to straight warp of installation pipeline and flow.The principle of position specifically is set: can be divided into block to the underground gas extraction pipe network, and make it separate, multistage back-fire relief when realizing catastrophe is controlled at minimum zone with catastrophe.
The present invention also can be installed in gas electricity unit air inlet front end, prevents gas in the unit cylinder backfire detonation pipeline.
Claims (3)
1. bidirectional flame arrester, its feature setting is two gas channels up and down; Wherein,
The middle part of overdraught passage is can be along the two-way mobile dull and stereotyped spool (5) of airflow direction, one closure plate (6) respectively established in the both sides of dull and stereotyped spool (5), closure plate (6) is provided with circular channel (7), described dull and stereotyped spool (5) has two states, the one, dull and stereotyped spool (5) is between two side stopboards (6) and with two side stopboards (6) and is separated, and the circular channel (7) in the periphery of dull and stereotyped spool (5) and the closure plate (6) forms the upper air passage; Another is that dull and stereotyped spool (5) reclines the upper air pathway closure because of impacted with a side stopboard (6) formation by air pressure;
The downstream passage is the water seal passage, and is undertaken on the below of upper air passage, in described lower stream of airflow passage, be respectively arranged with water injection valve (1), overflow pipe (8), residual cake valve (3) and with the water cavity (2) of upper air channel connection.
2. bidirectional flame arrester according to claim 1 is characterized in that described dull and stereotyped spool (5) is to be provided with its top suspension (4) suspention.
3. bidirectional flame arrester according to claim 1 is characterized in that in described overflow pipe (8) automatic tailrace being set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101910841A CN101176813B (en) | 2007-12-06 | 2007-12-06 | Bidirectional flame arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101910841A CN101176813B (en) | 2007-12-06 | 2007-12-06 | Bidirectional flame arrester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101176813A true CN101176813A (en) | 2008-05-14 |
| CN101176813B CN101176813B (en) | 2010-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007101910841A Active CN101176813B (en) | 2007-12-06 | 2007-12-06 | Bidirectional flame arrester |
Country Status (1)
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| CN (1) | CN101176813B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294087A (en) * | 2011-07-11 | 2011-12-28 | 无锡市华尔泰机械制造有限公司 | Drawer-type flame arrester |
| CN104975867A (en) * | 2015-06-05 | 2015-10-14 | 安徽恒源煤电股份有限公司 | Filtering fire suppression system for coal mine gas extraction pipeline |
| CN107519594A (en) * | 2017-08-18 | 2017-12-29 | 江苏大学 | A kind of multichannel spark arrester and its method of work |
| CN109132261A (en) * | 2018-07-20 | 2019-01-04 | 芜湖新瑟安智能科技有限公司 | A kind of storage tank of the oil movement and storage with explosion prevention function |
| CN109882234A (en) * | 2019-04-08 | 2019-06-14 | 贵州盘江精煤股份有限公司 | A kind of disconnected pipe structure for coal mine gob pipe laying |
| CN110251864A (en) * | 2019-06-26 | 2019-09-20 | 安徽宏润工业设备安装有限公司 | A kind of spark suppressing device |
| CN112107820A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Explosion-proof flame arrester for pipeline |
| CN113244550A (en) * | 2021-07-14 | 2021-08-13 | 江苏嘉胜石油科技有限公司 | High-stability storage tank free discharge flame arrester |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1044888A (en) * | 1963-05-02 | 1966-10-05 | Jan Neumann | Improved plate closure device for preventing flames spreading in tubing |
| CN2827440Y (en) * | 2005-09-15 | 2006-10-18 | 胜利油田胜利动力机械有限公司 | Dry flame trap used in gas pipe |
-
2007
- 2007-12-06 CN CN2007101910841A patent/CN101176813B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1044888A (en) * | 1963-05-02 | 1966-10-05 | Jan Neumann | Improved plate closure device for preventing flames spreading in tubing |
| CN2827440Y (en) * | 2005-09-15 | 2006-10-18 | 胜利油田胜利动力机械有限公司 | Dry flame trap used in gas pipe |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294087A (en) * | 2011-07-11 | 2011-12-28 | 无锡市华尔泰机械制造有限公司 | Drawer-type flame arrester |
| CN104975867A (en) * | 2015-06-05 | 2015-10-14 | 安徽恒源煤电股份有限公司 | Filtering fire suppression system for coal mine gas extraction pipeline |
| CN107519594A (en) * | 2017-08-18 | 2017-12-29 | 江苏大学 | A kind of multichannel spark arrester and its method of work |
| CN109132261A (en) * | 2018-07-20 | 2019-01-04 | 芜湖新瑟安智能科技有限公司 | A kind of storage tank of the oil movement and storage with explosion prevention function |
| CN109882234A (en) * | 2019-04-08 | 2019-06-14 | 贵州盘江精煤股份有限公司 | A kind of disconnected pipe structure for coal mine gob pipe laying |
| CN112107820A (en) * | 2019-06-19 | 2020-12-22 | 中国石油化工股份有限公司 | Explosion-proof flame arrester for pipeline |
| CN112107820B (en) * | 2019-06-19 | 2021-12-31 | 中国石油化工股份有限公司 | Explosion-proof flame arrester for pipeline |
| CN110251864A (en) * | 2019-06-26 | 2019-09-20 | 安徽宏润工业设备安装有限公司 | A kind of spark suppressing device |
| CN113244550A (en) * | 2021-07-14 | 2021-08-13 | 江苏嘉胜石油科技有限公司 | High-stability storage tank free discharge flame arrester |
| CN113244550B (en) * | 2021-07-14 | 2021-09-07 | 江苏嘉胜石油科技有限公司 | High-stability storage tank free discharge flame arrester |
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| Publication number | Publication date |
|---|---|
| CN101176813B (en) | 2010-11-17 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20080514 Assignee: ViewSonic energy (Fukang) Coal Industry Co Ltd Assignor: National Engineering Research Center for Gas Controlling of Pingan Mine Contract record no.: 2013990000576 Denomination of invention: Bidirectional flame arrester Granted publication date: 20101117 License type: Common License Record date: 20130911 |
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| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model |