CN104370048A - Oil-gas-isolation and explosion-proof system used during construction operation in oil cave depot gallery - Google Patents
Oil-gas-isolation and explosion-proof system used during construction operation in oil cave depot gallery Download PDFInfo
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- CN104370048A CN104370048A CN201410486113.7A CN201410486113A CN104370048A CN 104370048 A CN104370048 A CN 104370048A CN 201410486113 A CN201410486113 A CN 201410486113A CN 104370048 A CN104370048 A CN 104370048A
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Abstract
Disclosed is an oil-gas-isolation and explosion-proof system used during construction operation in an oil cave depot gallery. The system aims to solve the problem that oil gas explosion accidents are prone to occurring during construction operation due to the fact that oil gas in the oil cave depot gallery diffuses and spreads. According to the technical scheme for achieving the aim, the oil-gas-isolation and explosion-proof system used during construction operation in the oil cave depot gallery is characterized by comprising a first soft isolation bag and a second soft isolation bag. The first soft isolation bag and the second soft isolation bag are placed inside the oil cave depot gallery. After the space between the first soft isolation bag and the second soft isolation bag, the inner portion of the first soft isolation bag and the inner portion of the second soft isolation bag are filled with nitrogen, an effective nitrogen isolation zone is formed in the oil cave depot gallery, and a safe construction environment is provided for construction operators.
Description
Technical field
The present invention relates to construction operation field in oil plant cave depot tunnel, specifically oil gas isolation and flame proof.
Background technology
Oil plant cave depot is owing to laying in oil plant for a long time, certain density oil gas is there is in its tunnel, particularly when the oil storage facility in cave depot occurs to leak, will spread along oil plant cave depot tunnel to external diffusion after leaking oil product volatilization, if now in oil plant cave depot tunnel, construction operation is very dangerous, particularly fire operation, careless slightly will initiation fire explosion accident, thus cause great personal casualty and economic loss.At present, in oil plant cave depot tunnel during construction operation, the single physical isolation wall of general employing adds the method for process of ventilating to guarantee safety during construction operation, but spread the particularity of rule due to the special construction in oil plant cave depot tunnel and oil-gas diffusion, this processing method is not fully effective, such as 2009, the explosion accident of my army's certain oil terminal of southwest, although have employed the method that single physical isolation wall adds process of ventilating, still there occurs great oil gas explosion safety misadventure.In oil plant cave depot tunnel, thing is built and is removed this single physical isolation wall and inherently there is certain potential safety hazard in addition.
Summary of the invention
The object of the invention is to solve and spread because of the oil-gas diffusion in oil plant cave depot tunnel, the problem of oil gas explosion accident when causing construction operation.
The technical scheme adopted for realizing the object of the invention is such, and the oil gas isolation in a kind of oil plant cave depot tunnel during construction operation and flame proof system, is characterized in that: comprise the first software isolation package and the second software isolation package.
Described first software isolation package and the second software isolation package are placed in oil plant cave depot tunnel.After described first software isolation package and the second software isolation package inside are full of nitrogen, shutoff oil plant cave depot tunnel.
Further, tracheae and nitrogen gas cylinder is also comprised.
The air extractor duct of described nitrogen gas cylinder connects tracheae.Described tracheae connects the admission port of the first air inlet pipe, the second air inlet pipe and freeing pipe respectively.The air extractor duct of described first air inlet pipe connects the inflation inlet of the first software isolation package, the air extractor duct of described second air inlet pipe connects the inflation inlet of the second software isolation package, in the air extractor duct of the described freeing pipe oil plant cave depot tunnel between the first software isolation package and the second software isolation package.
Described first air inlet pipe installs the first valve, described second air inlet pipe installs the second valve, described freeing pipe installs the 3rd valve.
Further, computer and sensor is also comprised.
Described sensor for detecting the gas concentration in the oil plant cave depot tunnel between the first software isolation package and the second software isolation package, and is passed to computer.
When the gas concentration in the oil plant cave depot tunnel that described computer is judged between the first software isolation package and the second software isolation package is greater than threshold value, the 3rd valve opening described in described conputer controlled.
Further, described first software isolation package and the second software isolation package all have air extractor duct.The air extractor duct of described first software isolation package connects freeing pipe I.The air extractor duct of described second software isolation package connects freeing pipe II.Mounted valve I on described freeing pipe I.Mounted valve II on described freeing pipe II.
Further, the air extractor duct place of described nitrogen gas cylinder is provided with main valve and compression indicator.
The isolation of this oil gas and flame proof system have the following advantages:
1) structure is simple: whole system is only made up of two software oil gas isolation packages, concentration monitoring device, computer, nitrogen gas cylinder and some pipe fittings and a valve.
2) easy to operate: only two software isolation packages need to be placed on the position delimited in advance when arranging this system, to open the valve in nitrogen gas cylinder exit.
3) safe and effective: two software isolation packages in this system and the nitrogen fill area reaching 10 meters, can effectively isolate oil-gas diffusion when there is not oil gas explosion to spread, after there is oil gas explosion, because two isolation packages have certain elasticity, the shock wave that oil gas explosion produces can be cushioned, after isolation package breaks, nitrogen wherein will dilute the oil gas in tunnel, even if therefore there occurs oil gas explosion in oil plant cave depot tunnel, this isolation and flame proof system also can stop the development of oil gas explosion, avoid causing serious pernicious consequence.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: the first software isolation package 1, elastic rubber belt I 101, band rope I 102, freeing pipe I 103, valve I 1031, second software isolation package 2, elastic rubber belt II 201, band rope II 202, freeing pipe II 203, valve II 2031, tracheae 3, first air inlet pipe 301, first valve 3011, second air inlet pipe 302, second valve 3021, freeing pipe 303, the 3rd valve 3031, computer 6, sensor 7, main valve 8, compression indicator 9, nitrogen gas cylinder 10, inwall 11.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described, but should not be construed the above-mentioned subject area of the present invention and be only limitted to following embodiment.Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacement and change, all should be included in protection scope of the present invention.
Embodiment 1:
Oil gas isolation in oil plant cave depot tunnel during construction operation and a flame proof system, comprise the first software isolation package 1 and the second software isolation package 2.In embodiment, described first software isolation package 1 and the second software isolation package 2 are all the soft gas-pocket thereofs be made up of rubber, and this air bag has charging connector, can be inflated by air pump to it.
Described first software isolation package 1 and the second software isolation package 2 are placed in oil plant cave depot tunnel.After described first software isolation package 1 and the second software isolation package 2 inside are full of nitrogen, shutoff oil plant cave depot tunnel.
See accompanying drawing 1, there is between described first software isolation package 1 and the second software isolation package 2 certain distance (being preferably more than 10m).After first software isolation package 1 and the second software isolation package 2 expand, oil plant cave depot tunnel is divided into three regions, namely the nitrogen fill area between the first software isolation package 1 and the second software isolation package 2, the HYDROCARBON-BEARING REGION of the first software isolation package 1 side (dorsad the second software isolation package 2 side), and the work zone of the second software isolation package 2 side (dorsad the first software isolation package 1 side).Described HYDROCARBON-BEARING REGION communicates with oil plant cave depot, and gas concentration is high.Work zone is identical with the external world, and workmen or equipment are in work zone.Nitrogen fill area is used for isolated work zone and HYDROCARBON-BEARING REGION.
In embodiment, also comprise some elastic rubber belts of tying up on software isolation package and and some not there is elastomeric band rope.Because oil plant cave depot tunnel is parallel to horizontal surface, described elastic rubber belt is to be wrapped on software isolation package perpendicular to the direction of horizontal surface, and described band rope is wrapped on software isolation package with the direction being parallel to horizontal surface.Particularly, described first software isolation package 1 is wrapped some band ropes I 102, expansion during described band rope I 102 restriction the first software isolation package 1 inflated with nitrogen in horizontal direction.Described first software isolation package 1 further wrapped around some elastic rubber belts I 101, and the side of described elastic rubber belt I 101 and the surface contact of the first software isolation package 1, opposite side are bonded on the inwall 11 in oil plant cave depot tunnel.Described band rope is equivalent to the hoop adding its lateral expansion of constraint to air bag, produces larger pressure when making it be inflated to tunnel wall.
Embodiment 2:
The keystone configuration of the present embodiment, with embodiment 1, also comprises tracheae 3 and nitrogen gas cylinder 10.The air extractor duct of described nitrogen gas cylinder 10 connects tracheae 3.Described tracheae 3 connects the admission port of the first air inlet pipe 301, second air inlet pipe 302 and freeing pipe 303 respectively.The i.e. outlet threeway of described tracheae 3, is communicated with the first air inlet pipe 301, second air inlet pipe 302 and freeing pipe 303 respectively.High pressure nitrogen in nitrogen gas cylinder 10 can lead to the first air inlet pipe 301, second air inlet pipe 302 and freeing pipe 303.
The air extractor duct of described first air inlet pipe 301 connects the inflation inlet of the first software isolation package 1, the air extractor duct of described second air inlet pipe 302 connects the inflation inlet of the second software isolation package 2, in the air extractor duct of the described freeing pipe 303 oil plant cave depot tunnel between the first software isolation package 1 and the second software isolation package 2.Namely nitrogen gas cylinder 10 can to the first software isolation package 1, second software isolation package 2, and nitrogen fill area inflation therebetween.Air pressure normally atmospheric 2 ~ 5 times of the work zone of the first software isolation package 1 and the second software isolation package 2.
Described first air inlet pipe 301 installs the first valve 3011, described second air inlet pipe 302 installs the second valve 3021, described freeing pipe 303 installs the 3rd valve 3031.These valves are electromagnetic valve, so that control the unlatching of each valve by computing machine, namely control the inflation to various piece.
Embodiment 3
The keystone configuration of the present embodiment, with embodiment 1, also comprises computer 6 and sensor 7.
Described sensor 7 for detecting the gas concentration in the oil plant cave depot tunnel between the first software isolation package 1 and the second software isolation package 2, and is passed to computer 6.
When the gas concentration in the oil plant cave depot tunnel that described computer 6 is judged between the first software isolation package 1 and the second software isolation package 2 is greater than threshold value (25% of oil gas explosion concentration limit), described computer 6 controls described 3rd valve 3031 and opens, 1.5 ~ 3 times of atmospheric nitrogen are filled with to the region between two air bags, to dilute gas concentration between two air bags., give the alarm to the workman being in operating area meanwhile, notify that it is withdrawn as early as possible.
Embodiment 4
The keystone configuration of the present embodiment is with embodiment 1, and described first software isolation package 1 and the second software isolation package 2 all have air extractor duct.The air extractor duct of described first software isolation package 1 connects freeing pipe I 103.The air extractor duct of described second software isolation package 2 connects freeing pipe II 203.Mounted valve I 1031 on described freeing pipe I 103.Mounted valve II 2031 on described freeing pipe II 203.The air extractor duct place of described nitrogen gas cylinder 10 is provided with main valve 8 and compression indicator 9.
Claims (4)
1. the oil gas isolation in oil plant cave depot tunnel during construction operation and a flame proof system, is characterized in that: comprise the first software isolation package (1) and the second software isolation package (2);
Described first software isolation package (1) and the second software isolation package (2) are placed in oil plant cave depot tunnel; After described first software isolation package (1) and the second software isolation package (2) inside are full of nitrogen, shutoff oil plant cave depot tunnel;
Also comprise tracheae (3) and nitrogen gas cylinder (10);
The air extractor duct of described nitrogen gas cylinder (10) connects tracheae (3); Described tracheae (3) connects the admission port of the first air inlet pipe (301), the second air inlet pipe (302) and freeing pipe (303) respectively; The air extractor duct of described first air inlet pipe (301) connects the inflation inlet of the first software isolation package (1), the air extractor duct of described second air inlet pipe (302) connects the inflation inlet of the second software isolation package (2), in the air extractor duct of described freeing pipe (303) the oil plant cave depot tunnel between the first software isolation package (1) and the second software isolation package (2);
Upper installation first valve (3011) of described first air inlet pipe (301), upper installation second valve (3021) of described second air inlet pipe (302), the upper installation the 3rd valve (3031) of described freeing pipe (303).
2. the oil gas isolation in a kind of oil plant cave depot tunnel according to claim 1 during construction operation and flame proof system, is characterized in that: also comprise computer (6) and sensor (7);
Described sensor (7) for detecting the gas concentration in the oil plant cave depot tunnel between the first software isolation package (1) and the second software isolation package (2), and is passed to computer (6);
When the gas concentration in the oil plant cave depot tunnel that described computer (6) is judged between the first software isolation package (1) and the second software isolation package (2) is greater than threshold value, described computer (6) controls described 3rd valve (3031) and opens.
3. the oil gas isolation in a kind of oil plant cave depot tunnel according to claim 2 during construction operation and flame proof system, is characterized in that: described first software isolation package (1) and the second software isolation package (2) all have air extractor duct; The air extractor duct of described first software isolation package (1) connects freeing pipe I (103); The air extractor duct of described second software isolation package (2) connects freeing pipe II (203); The upper mounted valve I (1031) of described freeing pipe I (103); The upper mounted valve II (2031) of described freeing pipe II (203).
4. the oil gas isolation in a kind of oil plant cave depot tunnel according to claim 2 during construction operation and flame proof system, is characterized in that: the air extractor duct place of described nitrogen gas cylinder (10) is provided with main valve (8) and compression indicator (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486113.7A CN104370048B (en) | 2014-09-22 | 2014-09-22 | Oil gas isolation in a kind of oil plant cave depot tunnel during construction operation and flame proof system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410486113.7A CN104370048B (en) | 2014-09-22 | 2014-09-22 | Oil gas isolation in a kind of oil plant cave depot tunnel during construction operation and flame proof system |
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| Publication Number | Publication Date |
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| CN104370048A true CN104370048A (en) | 2015-02-25 |
| CN104370048B CN104370048B (en) | 2016-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410486113.7A Expired - Fee Related CN104370048B (en) | 2014-09-22 | 2014-09-22 | Oil gas isolation in a kind of oil plant cave depot tunnel during construction operation and flame proof system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156120A (en) * | 2015-09-11 | 2015-12-16 | 中铁九局集团第二工程有限公司 | Inclined-shaft reverse excavation construction method for hillside cave depot |
| CN111219203A (en) * | 2020-03-19 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Gas discharge system of supplementary gallery |
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| US5030033A (en) * | 1989-09-12 | 1991-07-09 | Heintzelman Stephen D | Material containment system |
| CN201313724Y (en) * | 2008-12-22 | 2009-09-23 | 中国水电顾问集团成都勘测设计研究院 | Large-scale underground air-storage |
| CN102852367A (en) * | 2012-07-10 | 2013-01-02 | 孔令先 | Safe and covert high-capacity oil depot arranged underground |
| CN103397882A (en) * | 2013-08-08 | 2013-11-20 | 张兆银 | Coal mining method and mine structure capable of preventing underground coal mine gas explosion and combustion |
| CN103696806A (en) * | 2013-12-19 | 2014-04-02 | 中铁八局集团有限公司 | Gas tunnel control method and system thereof |
| CN203822352U (en) * | 2014-05-23 | 2014-09-10 | 中国水利水电第七工程局有限公司 | Explosion-proof system for diesel locomotive in road gas tunnel |
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2014
- 2014-09-22 CN CN201410486113.7A patent/CN104370048B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5030033A (en) * | 1989-09-12 | 1991-07-09 | Heintzelman Stephen D | Material containment system |
| CN201313724Y (en) * | 2008-12-22 | 2009-09-23 | 中国水电顾问集团成都勘测设计研究院 | Large-scale underground air-storage |
| CN102852367A (en) * | 2012-07-10 | 2013-01-02 | 孔令先 | Safe and covert high-capacity oil depot arranged underground |
| CN103397882A (en) * | 2013-08-08 | 2013-11-20 | 张兆银 | Coal mining method and mine structure capable of preventing underground coal mine gas explosion and combustion |
| CN103696806A (en) * | 2013-12-19 | 2014-04-02 | 中铁八局集团有限公司 | Gas tunnel control method and system thereof |
| CN203822352U (en) * | 2014-05-23 | 2014-09-10 | 中国水利水电第七工程局有限公司 | Explosion-proof system for diesel locomotive in road gas tunnel |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105156120A (en) * | 2015-09-11 | 2015-12-16 | 中铁九局集团第二工程有限公司 | Inclined-shaft reverse excavation construction method for hillside cave depot |
| CN111219203A (en) * | 2020-03-19 | 2020-06-02 | 中铁二院工程集团有限责任公司 | Gas discharge system of supplementary gallery |
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| CN104370048B (en) | 2016-04-13 |
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