CN106764095A - For the encapsulating method and closed system of the pipeline of fire dam - Google Patents
For the encapsulating method and closed system of the pipeline of fire dam Download PDFInfo
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- CN106764095A CN106764095A CN201611041701.5A CN201611041701A CN106764095A CN 106764095 A CN106764095 A CN 106764095A CN 201611041701 A CN201611041701 A CN 201611041701A CN 106764095 A CN106764095 A CN 106764095A
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- pipeline
- fire dam
- inlet hole
- trap
- fire
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L5/00—Devices for use where pipes, cables or protective tubing pass through walls or partitions
- F16L5/02—Sealing
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Sink And Installation For Waste Water (AREA)
Abstract
The invention discloses a kind of encapsulating method and closed system of the pipeline for fire dam, encapsulating method comprises the following steps：(1) inlet hole is set on the interior wall of fire dam, is set on the exterior wall of fire dam and portalled, the position of the inlet hole is higher than the position portalled；(2) passage is provided between the interior wall and the exterior wall, inlet hole described in the channel connection and described is portalled；(3) by the Pipe installing to the passage, the two ends of the pipeline respectively from the inlet hole and it is described portal reach the outside of the fire dam；(4) trap is being connected from the end of the pipeline for portalling and stretching out, to water filling in the trap, for carrying out water-stop to the pipeline.The present invention provides the encapsulating method and closed system of a kind of pipeline for fire dam, can provide good sealing property for pipeline；Pipe shape and the position in fire dam are changed according to inlet hole and present position of portalling, so that fire dam can realize good sealing.
Description
Technical field
The present invention relates to underground airtight wall, encapsulating method more particularly, to a kind of pipeline for fire dam and close
Close system.
Background technology
In progress of coal mining, to make goaf keep apart with tunnel, workmen need with goaf
Fire dam is built in the tunnel for communicating in connection lane.Fire dam has isolation and sealing process, and fire dam can be prevented in goaf
Toxic gas etc. enter into tunnel.
Fig. 1 is the Pipe installing schematic diagram of underground airtight wall in the prior art.Fig. 2 is the underground airtight wall shown in Fig. 1
A-A generalized sections.As depicted in figs. 1 and 2, the ＇ of fire dam 1 can isolate goaf and with tunnel, be installed on the ＇ of fire dam 1
There is the ＇ of various pipelines 2.The ＇ of pipeline 2 is made using straight tube, goaf can be connected through the ＇ of fire dam 1 and with tunnel, so as to
Carry out the operation such as sample.
The ＇ of pipeline 2 is sealed to gate valve using butter usually using Gate-valve sealing with pipeline junction.But sealing
Effect is unsatisfactory.The pad of gate valve easily occurs aging, and butter plugging effect is also undesirable, causes the ＇ of pipeline 2 to be connected with gate valve
The gas leakage at place is more serious.When the ＇ of fire dam 1 top be subject to larger pressure when, near top set the ＇ of pipeline 2 with it is close
The contact surface for closing the ＇ of wall 1 can be subject to larger extruding force, cause wall to there may be crack, or even expand as the passage that leaks out, and destroy
The sealing effectiveness of the ＇ of fire dam 1.
In addition, the ＇ of pipeline 2 is pressed on the inside of the ＇ of fire dam 1, the contact surface of the ＇ of the pipeline 2 and ＇ of fire dam 1 is extremely difficult to thoroughly
Sealing, under the pressure differential effect of the ＇ both sides of fire dam 1, it is easy to formed around straight and the ＇ of fire dam 1 between on the outside of the ＇ of pipeline 2
The passage that leaks out of pipe, further influences the sealing effectiveness of the ＇ of fire dam 1.
Accordingly, it would be desirable to the encapsulating method and closed system of a kind of pipeline for fire dam solve the above problems.
The content of the invention
In view of this, it is an object of the invention to the encapsulating method for proposing a kind of pipeline for fire dam and closed system
System, can provide good sealing for pipeline, according to inlet hole with portal present position to change pipe shape, it is to avoid it is close
The pipeline that top is set forms crack in pressure larger by top with the contact surface of fire dam, influences obturation effect；In addition,
Air leak rate of air curtain can also be reduced.
The encapsulating method of a kind of pipeline for fire dam provided based on the above-mentioned purpose present invention, at least including following step
Suddenly：
(1) inlet hole is set on the interior wall of the fire dam；Set on the exterior wall of the fire dam and portalled；The inlet hole
Position higher than the position portalled；
(2) passage is provided between the interior wall and the exterior wall, inlet hole described in the channel connection and described is portalled；
(3) by the Pipe installing to the passage, the two ends of the pipeline from the inlet hole and described are portalled respectively
Reach the outside of the fire dam；
(4) trap is being connected from the end of the pipeline for portalling and stretching out, to water filling in the trap, is being used
In carrying out water-stop to the pipeline.
Preferably, step (4) also includes：The trap is arranged in water pond, to water pond water filling, and is flooded
Do not have the trap and described portal.
Preferably, the water pond shares the exterior wall of the fire dam with the fire dam.
Furthermore it is preferred that step (4) also includes：Valve, the valve opening or closing energy are set on the trap
Enough control switching on or off for the trap.
A kind of closed system that the present invention is also provided, including：
Water pond；
Fire dam, is provided with least one pipeline for running through the fire dam, and use above-mentioned use on the fire dam
The pipeline is sealed in the encapsulating method of the pipeline of fire dam.
Preferably, the fire dam includes interior wall, middle wall, packed layer and exterior wall.
Preferably, the pipeline includes：Portal from the first inlet hole and first respectively and stretch in measure pipe, the two ends of the measure pipe
Go out to the outside of the fire dam, first inlet hole apart from the fire dam top board 0.3~0.5m, described first portal away from
From the 0.3~0.5m of base plate of the fire dam.
Preferably, sighting tube, the two ends of the sighting tube portal from the second inlet hole and second respectively reach it is described closed
The outside of wall, the second inlet hole position is not less than the position of first inlet hole, and described second portals apart from institute
State the 0.3~0.5m of base plate of fire dam.
Preferably, the pipeline also includes：Portal from the 3rd inlet hole and the 3rd respectively at aqueduct, the two ends of the aqueduct
The outside of the fire dam is reached, apart from the 0.35~0.55m of base plate of the fire dam, the described 3rd goes out the 3rd inlet hole
Base plate 0.3~0.5m of the pitch-row from the fire dam.
Furthermore it is preferred that described first portal, described second portal and the described 3rd axis for portalling three be located at it is same
Level height.
From the above it can be seen that provided by the present invention for the encapsulating method and closed system of the pipeline of fire dam,
Compared with prior art, with advantages below：First, setting up trap on pipeline, pipeline is sealed with water, be pipe
Road provides good sealing effectiveness；Second, according to inlet hole and portalling present position and changing pipe shape and in fire dam
Position, the two ends of pipeline are located in the different vertical heights of fire dam, and pipeline can be to the bottom of fire dam after entering fire dam
Portion extends so that the bearing of trend of pipeline is no longer on same level height, but in the different vertical heights point of fire dam
Cloth, it is to avoid the pipeline set near top forms crack in pressure larger by top with the contact surface of fire dam, influences close
Close effect.
Brief description of the drawings
By being described to embodiment below in conjunction with the accompanying drawings, features described above of the invention and technological merit will become
More understand and be readily appreciated that.
Fig. 1 is the Pipe installing schematic diagram of underground airtight wall in the prior art.
Fig. 2 is the A-A generalized sections of the underground airtight wall shown in Fig. 1.
Fig. 3 is the schematic diagram of closed system used in the specific embodiment of the invention.
Fig. 4 is the schematic diagram of pipeline distribution on the exterior wall of the fire dam shown in Fig. 3.
Fig. 5 is the schematic perspective view of the closed system shown in Fig. 3.
Wherein reference：
1 ＇：Inner wall；2 ＇：Pipeline；
1：Interior wall； 2：Middle wall； 3：Packed layer；
4：Exterior wall； 5：Water pond；
11：First inlet hole； 12：Second inlet hole； 13：3rd inlet hole；
21：First portals； 22：Second portals； 23：3rd portals；
31：Measure pipe； 32：Sighting tube； 33：Aqueduct；
41：First trap； 42：Second trap； 43：3rd trap；
51：First valve； 52：Second valve； 53：3rd valve.
Specific embodiment
To make the object, technical solutions and advantages of the present invention become more apparent, below in conjunction with specific embodiment, and reference
Accompanying drawing, the present invention is described in more detail.Wherein identical parts are presented with like reference characters.Need explanation
It is direction that the word "front", "rear" that is used in describing below, "left", "right", "up" and "down" are referred in accompanying drawing.Use
Word " interior " and " outward " refer respectively to towards or away from the direction of particular elements geometric center.
Encapsulating method for the pipeline of fire dam at least comprises the following steps：
The first step is setting inlet hole (such as the first inlet hole 11, the second inlet hole on the interior wall 1 (as shown in Figure 3) of fire dam
12nd, the 3rd inlet hole 13), interior wall 1 is proximate to the wall of goaf side；Set out on the exterior wall 4 (as shown in Figure 3) of fire dam
Hole (such as first portal 21, second portal the 22, the 3rd portal 23), exterior wall 4 is proximate in the wall with tunnel side；Inlet hole
Position is higher than the position portalled.
Second step is that passage is provided between interior wall 1 and exterior wall 4, passage be used for pipe laying, channel connection inlet hole and
Portal.
3rd step is to be installed in passage, the two ends of pipeline pipeline (such as measure pipe 31, sighting tube 32, aqueduct 33)
From inlet hole and portal and reach the outside of fire dam respectively.
4th step is that trap is connected on the end of the pipeline stretched out from portalling, to water filling in trap, for pipe
Road carries out water-stop.
The need for according to pipe laying, the position of passage can be reserved, while installing while fire dam is built
Pipeline.Because inlet hole and the in the vertical direction that portals have a difference in height, pipeline is into needing to prolong to the bottom of fire dam after fire dam
Stretch, it is to avoid the pipeline set near top forms crack in pressure larger by top with the contact surface of fire dam, influences close
Close effect.Meanwhile, trap is set up in pipe outlet, and sealed using water, the sealing of pipeline can be improved.
Inlet hole matches with the size portalled and pipeline, and inlet hole can be arranged on the middle and upper part of the interior wall 1 of fire dam, portal
The bottom of the exterior wall 4 of fire dam can be arranged on.
Passage matches with the size and dimension of pipeline, so that pipeline can provide uniform axial restraint power for passage.
Outreach of the pipeline on fire dam is usually 300mm.Wherein, one end that pipeline stretches out from the inlet hole of interior wall 1
It is the entrance point of pipeline, is the port of export of pipeline from one end for stretching out of portalling of exterior wall 4.
Preferably, step (4) also includes：Trap is arranged in water pond 5 (as shown in Figure 5), to the note of water pond 5
Water, water filling highly higher than trap the mouth of pipe height and higher than the outlet height on fire dam, so as to flood trap
And portal.The mouth of pipe of trap is submerged in the water in water pond with portalling, and trap can seal pipeline by water seal, it is to avoid
There is gas leakage in pipeline；Can also avoid the place of portalling that gas leakage occurs simultaneously, further improve the sealing of pipeline and fire dam.
Even if pipeline outer passage has the phenomenon leaked out, the water energy in water pond is enough flooded and is portalled, to pernicious gas reality
Existing water seal effect and diluting effect, can avoid being entered directly into pernicious gas with tunnel；Goaf gas can pass through
Passage enters water pond, can produce substantial amounts of foaming to point out to have formed the passage that leaks out in operating personnel's fire dam, so as to and
When treatment portal and fill and leak out passage and remedied.
Preferably, water pond 5 shares the exterior wall 4 of fire dam with fire dam, and the height in water pond 5 is usually 1m, and exterior wall 4 is made
To share wall, construction cost can be saved.
Preferably, step (4) also includes：Valve is set on trap, and valve can be arranged on the bottom of trap, valve
Door is turned on and off that switching on or off for trap can be controlled.Increase valve seal, dual-seal can be realized to pipeline, come
Improve the sealing effectiveness of pipeline.
The present invention also provides a kind of closed system.
Fig. 3 is the schematic diagram of closed system used in the specific embodiment of the invention.Fig. 4 is the fire dam shown in Fig. 3
The schematic diagram of pipeline distribution on exterior wall.Fig. 5 is the schematic perspective view of the closed system shown in Fig. 3.As shown in Fig. 3 to 5, closed system
System includes：Water pond 5 and fire dam.
Water pond 5 is used to be filled with water, so as to the pipeline to envelope wall and realization sealing of portalling.At least one is provided with fire dam
Through the pipeline of fire dam, and encapsulating method using the above-mentioned pipeline for fire dam seals bar to pipeline.
Completely cut off goaf using closed system and with passage, good sealing and isolation can be provided, to pipe
Road is effectively sealed, while not influenceing the normal of pipeline to use；Can also being portalled for fire dam effectively sealed, it is to avoid
The isolation effect of the pass effect fire dam that leaks out in fire dam.
Height where the height of water is at least above on fire dam and portals in water pond 5, to be sealed to portalling.
Trap can be arranged in water pond 5, trap 5 and pipeline communication, and the water in water pond 5 is deposited for sealing
Water pipe, to realize sealing to pipeline.
Preferably, fire dam includes interior wall 1, middle wall 2, packed layer 3 and exterior wall 4.In the present embodiment, from goaf to
With tunnel, arranged successively according to the order of interior wall 1, middle wall 2, packed layer 3 and exterior wall 4.Interior wall 1 is brick wall, and the thickness of interior wall 1 is
0.5m；Middle wall 2 is concrete walls, and the thickness of middle wall 2 is 1m；Packed layer 3 is loess packed layer, and the thickness of packed layer 3 is 1m；Outward
Wall 4 is brick wall, and the thickness of exterior wall 4 is 0.75m.The fire dam of multi-layer walls composition can provide good insulating effect；Coagulation
Cob wall and loess packed layer seamlessly can be fitted on pipeline, it is to avoid form the passage that leaks out；Multi-layer walls are successively built, energy
Enough for the laying of pipeline and passage provides facility.
Preferably, pipeline includes：Portal from the first inlet hole 11 and first respectively and 21 stretch in measure pipe 31, the two ends of measure pipe 31
Go out, the 0.3~0.5m of top board of the distance airtight wall of the first inlet hole 11, the first 0.3~0.5m of base plate for portalling 21 distance airtight walls arranges
Applying pipe 31 can be to goaf conveying fire extinguishing material or inert gas etc., to ensure in the security with tunnel.
In the present embodiment, measure pipe 31 includes import pipeline section, inclines pipeline section and horizontal pipeline section, and import pipeline section uses level
Pipe makes, and the top board 0.3m of distance airtight wall, one end of horizontal tube is stretched out from inlet hole, the other end and the inclination pipeline section of horizontal tube
One end is connected by elbow welding, is inclined pipeline section and is extended downward the other end that pipeline section is inclined apart from base plate 0.3m by elbow
One end with horizontal pipeline section is welded to connect, the base plate 0.3m of horizontal tube segment distance fire dam, and the other end of horizontal pipeline section is from portalling
Stretch out, and be welded to connect trap.
The caliber of measure pipe is more than or equal to 100mm, so as to be rapidly completed transport.
Preferably, pipeline also includes：Portal 22 from the second inlet hole 12 and second respectively in sighting tube 32, the two ends of sighting tube 32
Stretch out, the position of the second inlet hole 12 is not less than the position of the first inlet hole 11, the second base plate for portalling 22 distance airtight walls
0.3~0.5m.The parameters such as temperature, the humidity that sighting tube 32 can sample to observe goaf to the gas in goaf, with
Just rest in time with the ambient parameter in tunnel.By setting the position of the first inlet hole 11 and the second inlet hole 12, can avoid from
The material (such as mud) of the outflow of the first inlet hole 11 enters into the second inlet hole 12, and the normal of the second inlet hole 12 of influence is used.
In the present embodiment, sighting tube 32 includes import pipeline section, vertical pipeline section and horizontal pipeline section, and import pipeline section uses level
Pipe makes, and the fixed board 0.3m of inlet tube segment distance fire dam, one end of horizontal tube stretches out from inlet hole, the other end of horizontal tube with it is perpendicular
One end of straight length is connected by elbow welding, and vertical pipeline section is extended to apart from base plate 0.3m straight down, vertical pipeline section it is another
One end is welded to connect by elbow with one end of horizontal pipeline section, the base plate 0.3m of horizontal tube segment distance fire dam, horizontal pipeline section
The other end stretches out from portalling, and is welded to connect trap.
The caliber of sighting tube is more than or equal to 25mm, so that operating personnel are observed operation.
Preferably, pipeline also includes：Portal 23 from the 3rd inlet hole 13 and the 3rd respectively in aqueduct 33, the two ends of aqueduct 33
Stretch out, the 0.35~0.55m of base plate of the distance airtight wall of the 3rd inlet hole 13, the 3rd base plate 0.3 for portalling 23 distance airtight walls~
0.5m.Aqueduct 33 can derive the water in goaf, it is to avoid the problems such as there is ponding with tunnel.
In the present embodiment, aqueduct 33 includes import pipeline section, vertical pipeline section and horizontal pipeline section, and import pipeline section uses level
Pipe makes, and the base plate 0.35m of distance airtight wall, one end of horizontal tube stretches out from inlet hole, the other end of horizontal tube and vertical pipeline section
One end connected by elbow welding, vertical pipeline section is extended to apart from base plate 0.3m straight down, and the other end of vertical pipeline section leads to
Cross elbow to be welded to connect with one end of horizontal pipeline section, the base plate 0.3m of horizontal tube segment distance fire dam, the other end of horizontal pipeline section
Stretched out from portalling, and be welded to connect trap.
The caliber of aqueduct 33 is more than or equal to 100mm, so as to be rapidly completed water delivery operation.
Preferably, first portal 21, second portal 22 and the 3rd portal 23 threes axis be located at same level highly, with
Just same water pond 5 is shared.
In the present embodiment, three pipelines are provided with fire dam, from left to right (as shown in Figure 4) is followed successively by aqueduct
33rd, sighting tube 32 and measure pipe 31.Aqueduct 33 and the level interval of sighting tube 32 are relatively small, all near the left end of fire dam；
Right-hand member of the measure pipe 31 near fire dam, it is contemplated that the size in pond 5 of turning one's coat is set, and measure pipe 31 is caused into sight by tilted tube
The right side of test tube 32, the horizontal pipeline section of measure pipe 31, sighting tube 32 and the three of aqueduct 33 can simultaneously to the exterior wall of fire dam
4 extend.It is connected and installed with the first trap 41, of the first valve 51 respectively to measure pipe 31, sighting tube 32 and aqueduct 33
Second trap 42 and the 3rd trap 43 of the 3rd valve 53 of two valves 52, so as to realize water-stop and valve simultaneously
Sealing, improves the sealing effectiveness of each pipeline, to improve in the security with tunnel.
Be described below the use process of closed system, including pipeline seal process and handshaking procedures.
Seal process includes：First, the port of export in measure pipe 31, sighting tube 32 and aqueduct 33 is installed first and is deposited successively
Water pipe 41, the second trap 42 and the 3rd trap 43；Secondly, the first valve 51, the second valve 52 and the 3rd valve 53 are closed,
Measure pipe 31, sighting tube 32 and aqueduct 33 are tentatively sealed；Again, to the first trap 41, the and of the second trap 42
Water filling carries out secondary seal in 3rd trap 43；Finally, to water filling in water pond 5, flood first and portal and 21, second portal 22
Portal 23 with the 3rd.
Handshaking procedures include：First, the water in emptying water pond 5；Secondly, the first trap 41 of emptying, the second trap
42 and the 3rd water in trap 43；Finally, the first valve 51, the second valve 52 and the 3rd valve 53 are opened, is accordingly grasped
Make.
Understood with practice from the description above, encapsulating method and closed system provided by the present invention for the pipeline of fire dam
System, compared with prior art, with advantages below：First, setting up trap on pipeline, pipeline is sealed with water, can
Good sealing effectiveness is provided with for pipeline；Second, according to inlet hole and portalling present position and changing pipe shape and close
Position within the walls is closed, the two ends of pipeline are located in the different vertical heights of fire dam, and pipeline can be to closed after entering fire dam
The bottom of wall extends so that the bearing of trend of pipeline is no longer on same level height, but vertical in the difference of fire dam
Highly it is distributed, it is to avoid the pipeline set near top forms crack with the contact surface of fire dam in pressure larger by top,
Influence obturation effect.Third, closed system sets up water pond, can going out the outlet of trap and pipeline and fire dam
Hole is immersed in water pond, it is to avoid the place of portalling of pipeline junction and fire dam leaks out, and further improves sealing effectiveness.
Those of ordinary skill in the art should be understood：Specific embodiment of the invention is the foregoing is only, and
The limitation present invention, all any modification, equivalent substitution and improvements within purport of the invention, done etc. are not used in, all should be included
Within protection scope of the present invention.
Claims (10)
1. the encapsulating method of a kind of pipeline for fire dam, it is characterised in that at least comprise the following steps：
(1) inlet hole is set on the interior wall of the fire dam, is set on the exterior wall of the fire dam and portalled, the position of the inlet hole
Put higher than the position portalled；
(2) passage is provided between the interior wall and the exterior wall, inlet hole described in the channel connection and described is portalled；
(3) by the Pipe installing to the passage, the two ends of the pipeline respectively from the inlet hole and it is described portal stretch out
To the outside of the fire dam；
(4) trap is being connected from the end of the pipeline for portalling and stretching out, to water filling in the trap, for right
The pipeline carries out water-stop.
2. the encapsulating method of the pipeline for fire dam according to claim 1, it is characterised in that step (4) also includes：
The trap is arranged in water pond, to water pond water filling, and the trap is flooded and described is portalled.
3. the encapsulating method of the pipeline for fire dam according to claim 2, it is characterised in that
The water pond shares the exterior wall of the fire dam with the fire dam.
4. the encapsulating method of the pipeline for fire dam according to any one of claims 1 to 3, it is characterised in that step
(4) also include：
Valve is set on the trap, and the valve opening or closing can control switching on or off for the trap.
5. a kind of closed system, it is characterised in that including：
Water pond；
Fire dam, be provided with the fire dam at least one through the fire dam pipeline, and using as claim 1 to
The encapsulating method of the pipeline for fire dam described in 4 any one is sealed to the pipeline.
6. closed system according to claim 5, it is characterised in that
The fire dam includes interior wall, middle wall, packed layer and exterior wall.
7. the closed system according to claim 5 or 6, it is characterised in that
The pipeline includes：Measure pipe, the two ends of the measure pipe portal from the first inlet hole and first respectively reach it is described close
The outside of wall is closed, apart from the 0.3~0.5m of top board of the fire dam, described first portals apart from described closed first inlet hole
0.3~the 0.5m of base plate of wall.
8. closed system according to claim 7, it is characterised in that
The pipeline also includes：Sighting tube, the two ends of the sighting tube portal from the second inlet hole and second respectively reach it is described
The outside of fire dam, the second inlet hole position is not less than the position of first inlet hole, described second portal away from
From the 0.3~0.5m of base plate of the fire dam.
9. closed system according to claim 8, it is characterised in that
The pipeline also includes：Aqueduct, the two ends of the aqueduct portal from the 3rd inlet hole and the 3rd respectively reach it is described
The outside of fire dam, apart from the 0.35~0.55m of base plate of the fire dam, the described 3rd portals described in distance the 3rd inlet hole
0.3~the 0.5m of base plate of fire dam.
10. closed system according to claim 9, it is characterised in that
Described first portals, described second portals and the described 3rd axis for portalling three is located at same level highly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041701.5A CN106764095B (en) | 2016-11-22 | 2016-11-22 | The encapsulating method and closed system of pipeline for fire dam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041701.5A CN106764095B (en) | 2016-11-22 | 2016-11-22 | The encapsulating method and closed system of pipeline for fire dam |
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| CN106764095B CN106764095B (en) | 2019-04-05 |
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|---|---|---|---|---|
| US4023372A (en) * | 1975-04-17 | 1977-05-17 | Oberjuerge Rubber Company | Means to seal-off portions of underground mines and the like |
| SU909227A2 (en) * | 1979-10-01 | 1982-02-28 | Среднеазиатское Отделение Всесоюзного Научно-Исследовательского И Проектно-Конструкторского Института | Pneumo-hydraulic compressed air accumulator |
| CN201141314Y (en) * | 2006-11-07 | 2008-10-29 | 柴兆喜 | Water sealing combined enclosed structure of mine tunnel |
| CN202047865U (en) * | 2011-04-21 | 2011-11-23 | 王国伟 | Simple U-shaped enclosed water guide apparatus used in coal mine tunnel |
| CN102337906A (en) * | 2011-09-09 | 2012-02-01 | 陕西开拓建筑科技有限公司 | Construction method for pouring airtight partition wall between recovered roadway and reserved roadway |
| CN205014054U (en) * | 2015-08-18 | 2016-02-03 | 山西新泰钢铁有限公司 | Device is blocked in liquid -filled gas |
-
2016
- 2016-11-22 CN CN201611041701.5A patent/CN106764095B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4023372A (en) * | 1975-04-17 | 1977-05-17 | Oberjuerge Rubber Company | Means to seal-off portions of underground mines and the like |
| SU909227A2 (en) * | 1979-10-01 | 1982-02-28 | Среднеазиатское Отделение Всесоюзного Научно-Исследовательского И Проектно-Конструкторского Института | Pneumo-hydraulic compressed air accumulator |
| CN201141314Y (en) * | 2006-11-07 | 2008-10-29 | 柴兆喜 | Water sealing combined enclosed structure of mine tunnel |
| CN202047865U (en) * | 2011-04-21 | 2011-11-23 | 王国伟 | Simple U-shaped enclosed water guide apparatus used in coal mine tunnel |
| CN102337906A (en) * | 2011-09-09 | 2012-02-01 | 陕西开拓建筑科技有限公司 | Construction method for pouring airtight partition wall between recovered roadway and reserved roadway |
| CN205014054U (en) * | 2015-08-18 | 2016-02-03 | 山西新泰钢铁有限公司 | Device is blocked in liquid -filled gas |
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| Publication number | Publication date |
|---|---|
| CN106764095B (en) | 2019-04-05 |
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