CN106677208A - Method for determining position of mechanical air outlet of utility tunnel natural gas cabin - Google Patents
Method for determining position of mechanical air outlet of utility tunnel natural gas cabin Download PDFInfo
- Publication number
- CN106677208A CN106677208A CN201611211131.XA CN201611211131A CN106677208A CN 106677208 A CN106677208 A CN 106677208A CN 201611211131 A CN201611211131 A CN 201611211131A CN 106677208 A CN106677208 A CN 106677208A
- Authority
- CN
- China
- Prior art keywords
- natural gas
- cabin
- air outlet
- mechanical air
- corrugated tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/10—Tunnels or galleries specially adapted to house conduits, e.g. oil pipe-lines, sewer pipes ; Making conduits in situ, e.g. of concrete ; Casings, i.e. manhole shafts, access or inspection chambers or coverings of boreholes or narrow wells
-
- 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
- F16L51/00—Expansion-compensation arrangements for pipe-lines
- F16L51/02—Expansion-compensation arrangements for pipe-lines making use of bellows or an expansible folded or corrugated tube
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The invention discloses a method for determining the position of a mechanical air outlet of a utility tunnel natural gas cabin and belongs to the technical field of municipal utility tunnels. The method comprises the following specific steps that a natural gas corrugated pipe (4) is installed on a natural gas pipeline (3), and the mechanical air outlet (2) of the natural gas independent cabin is stored over the natural gas corrugated pipe (4). The distance between the perpendicular bisector of the natural gas corrugated pipe and the perpendicular bisector of the mechanical air outlet (2) of the natural gas independent cabin is equal to or less than 5 mm. The method for determining the position of the mechanical air outlet of the utility tunnel natural gas cabin has the advantages that after failure and leakage of the natural gas corrugated pipe occur, natural gas is quickly and timely discharged to the outside of the natural gas independent cabin through the mechanical air outlet (2) of the natural gas independent cabin, and thus safe running of a utility tunnel is actively and effectively ensured.
Description
Technical field
The invention belongs to pipe gallery technical field, more particularly to a kind of to determine the cabin mechanical exhaust of pipe gallery natural gas
The method of mouth position.
Background technology
City integrated piping lane facility is at the early-stage at home, and particularly natural gas line enters corridor engineering achievement seldom, its master
The explosive accident that reason is the leakage initiation of natural gas line is wanted, the technology rule that natural gas enters pipe gallery have just been implemented at present
Fan Zhong, it is desirable to natural gas enter corridor must independently into cabin, while to be also divided into independent area of fire protection along pipe lengths, and
And it is also performed to force ventilation.When laying in independent corridor due to natural gas line in addition to pipeline itself, gold is also accompanied with
The device that category corrugated tube deforms as the special absorptive for absorbing natural gas line temperature change, the natural gas corrugated tube in cabin exists
Problems with occurs in operation：
1st, corrugated tube is flexible member, is changed often between the compression and diastole of temperature change, long-time corrugated tube
Metal material occurs fatigue so that rupturing, and the leakage phenomenon for causing natural gas occurs, therefore corrugated tube is in natural gas transmission and distribution pipe
It is accident position occurred frequently in net.
If the 2, expansion joint occurs destruction initiation natural gas leakage accident appearance in natural gas piping lane, at this moment it will be only
Standpipe spreads in corridor, and its path is, along pipeline axial length direction, in this case, to be arranged on the machine on natural gas line top
Tool exhaust blower starts immediately, increases exhaust air rate, extracts the natural gas in corridor to cabin exterior, preventing natural gas in cabin and
Air mixes so as to cause explosion accident to occur.But if its corrugated tube is located away from force ventilation mouth, then natural gas will be climing
Prolong whole cabin, delay natural gas to the time swap of cabin exterior, while at ordinary times just with the presence of air in cabin, may be natural
Gas locally reaches blast melting concn in towards the road of mechanical exhaust mouth, there is the greater risk that accident occurs.
The content of the invention
It is an object of the invention to provide a kind of method for determining pipe gallery natural gas cabin mechanical exhaust mouth position, solution
Determine due to the problem for revealing the extreme accident risk that natural gas may cause after natural gas line weak part ripple tube failure.
Realize the safe operation of natural gas line in pipe gallery and natural gas independent tank.
To solve above-mentioned technical problem, concretely comprise the following steps：
1st, natural gas corrugated tube 4 is arranged on above natural gas line 3；
The 2nd, natural gas independence cabin mechanical exhaust mouth 2 is placed in the surface of natural gas corrugated tube 4.
Wherein, the perpendicular bisector of the perpendicular bisector of natural gas corrugated tube 4 and natural gas independence cabin mechanical exhaust mouth 2
The distance between≤5 millimeters, it is ensured that the natural gas that the natural gas revealed from natural gas corrugated tube 4 can be directly via its top is only
Vertical cabin mechanical exhaust mouth 2 discharges natural gas independence cabin 1.
It is an advantage of the current invention that：Natural gas line enters corridor and although meets the polytechnic growth requirement of Municipal, but
Because the weakness elements corrugated tube in natural gas line once fails, the natural gas of leakage may be with the air in its cabin
Explosion danger gas is mixed into, Given this natural gas must be rapidly discharged outside cabin, be this by using natural gas tube ripple
Pipe position, close proximity to this technical method of the mechanical exhaust mouth in its natural gas cabin so as to the natural gas that may be revealed in time,
It is rapid to discharge cabin, the time for discharging cabin is reduced, reduce the danger that explosion potential occurs after it mixes in natural gas cabin
Dangerous factor, realizes the essential safety requirements that natural gas line enters the municipal administration synthesis pipe gallery of corridor.
Description of the drawings
Fig. 1 is the front view of the present invention.Wherein, natural gas independence cabin 1, natural gas independence cabin mechanical exhaust mouth 2, day
Right feed channel 3, natural gas corrugated tube 4.
Specific embodiment
Fig. 1 is a kind of specific embodiment of the present invention.
To solve above-mentioned technical problem, concretely comprise the following steps：
1st, natural gas corrugated tube 4 is arranged on above natural gas line 3；
The 2nd, natural gas independence cabin mechanical exhaust mouth 2 is placed in the surface of natural gas corrugated tube 4.
Wherein, the perpendicular bisector of the perpendicular bisector of natural gas corrugated tube 4 and natural gas independence cabin mechanical exhaust mouth 2
The distance between be 5 millimeters, it is ensured that from natural gas corrugated tube 4 reveal natural gas can be directly via its top natural gas it is only
Vertical cabin mechanical exhaust mouth 2 discharges natural gas independence cabin 1.
After above-mentioned position determines, the natural gas that natural gas corrugated tube 4 is revealed after failing can be made to arrange in time rapidly
Go out to outside natural gas independence cabin 1.
Claims (2)
1. a kind of method for determining pipe gallery natural gas cabin mechanical exhaust mouth position, it is characterised in that concretely comprise the following steps：
1) by natural gas corrugated tube (4) installed in natural gas line (3) above；
2) natural gas independence cabin mechanical exhaust mouth (2) is placed in the surface of natural gas corrugated tube (4).
2. method according to claim 1, it is characterised in that the perpendicular bisector of described natural gas corrugated tube (4) with
The distance between perpendicular bisector of natural gas independence cabin mechanical exhaust mouth (2)≤5 millimeters, it is ensured that from natural gas corrugated tube
(4) natural gas revealed in directly can discharge natural gas independence via natural gas independence cabin mechanical exhaust mouth (2) on its top
Cabin (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211131.XA CN106677208A (en) | 2016-12-24 | 2016-12-24 | Method for determining position of mechanical air outlet of utility tunnel natural gas cabin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611211131.XA CN106677208A (en) | 2016-12-24 | 2016-12-24 | Method for determining position of mechanical air outlet of utility tunnel natural gas cabin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106677208A true CN106677208A (en) | 2017-05-17 |
Family
ID=58870456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611211131.XA Pending CN106677208A (en) | 2016-12-24 | 2016-12-24 | Method for determining position of mechanical air outlet of utility tunnel natural gas cabin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106677208A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3921949A1 (en) * | 1989-07-04 | 1991-01-17 | Frank Deponie Technik Gmbh | Burner for burning gas given off from refuse dump - has burner head mounted telescopically over perforated pipe |
| CN1319704A (en) * | 2000-08-31 | 2001-10-31 | 北京市城建建筑设计研究院有限公司 | underground comprehesive pipe gallery and system for comprehensive developing and utilizing underground space |
| CN2661777Y (en) * | 2003-12-19 | 2004-12-08 | 南京鸿宇市政设施投资管理有限责任公司 | Municipal underground pipeline lane |
-
2016
- 2016-12-24 CN CN201611211131.XA patent/CN106677208A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3921949A1 (en) * | 1989-07-04 | 1991-01-17 | Frank Deponie Technik Gmbh | Burner for burning gas given off from refuse dump - has burner head mounted telescopically over perforated pipe |
| CN1319704A (en) * | 2000-08-31 | 2001-10-31 | 北京市城建建筑设计研究院有限公司 | underground comprehesive pipe gallery and system for comprehensive developing and utilizing underground space |
| CN2661777Y (en) * | 2003-12-19 | 2004-12-08 | 南京鸿宇市政设施投资管理有限责任公司 | Municipal underground pipeline lane |
Non-Patent Citations (1)
| Title |
|---|
| 李士崎: "《管道工程施工技术与质量控制》", 31 January 2009 * |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |
|
| WD01 | Invention patent application deemed withdrawn after publication |