CN101832428A - Low-concentration fuel transmission pipeline - Google Patents
Low-concentration fuel transmission pipeline Download PDFInfo
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- CN101832428A CN101832428A CN200910010691A CN200910010691A CN101832428A CN 101832428 A CN101832428 A CN 101832428A CN 200910010691 A CN200910010691 A CN 200910010691A CN 200910010691 A CN200910010691 A CN 200910010691A CN 101832428 A CN101832428 A CN 101832428A
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- low
- concentration fuel
- pipeline
- vertical passage
- concentration
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Abstract
The utility model discloses a low-concentration fuel transmission pipeline, which relates to a pipeline for transmitting low-concentration fuel, in particular to a fuel for transmitting low-concentration mixed fuel which probably explodes. The invention can effectively prevent the explosion of the low-concentration fuel transmission pipeline without damaging the pipeline. The low-concentration fuel transmission pipeline comprises a pipeline, and the structure essence is that a longitudinal channel is arranged in the pipeline, and the equivalent diameter of the longitudinal channel is less than or equal to that of low-concentration fuel flameout.
Description
Technical field:
The present invention relates to a kind of pipeline that is used to carry low-concentration fuel, and the pipeline of the low density combination gas of explosion risk is arranged especially for conveying.
Background technique:
In existing combustion gas was used, the combustion gas that requires to carry in the pipeline can not have burning and explosion risk.But in some special industry and occasion, the production of combustion gas can produce the gas of burning and blast, as the pre-extraction of the gas of coal containing methane gas ore deposit in recovery process, in China, the mash gas methane content that coal mine gas pre-draining is adopted accounts for 50%--70% in the situation below 30%; By the Safety regulations requirement, methane content wants emptying, every year to waste the energy of huge amount in line transportation with using dangerous at the gas below 30%; Simultaneously, combustion gas methane is strong greenhouse gas, and is also totally unfavorable to environment.
In low density coal mine gas application facet, apply to 25% methane volume content at present, apart from methane and air gas mixture range of explosion 5-15% 10% safe margin is arranged still; So, carry for the methane gas of 5-25% methane volume content, all there is the delivery safety problem.
The safe transport problem mainly is the appearance of explosive accident: carry the pipeline of low concentration gas, moment high temperature and explode because of electric arc appears in very big electric current in pipeline occurs because of suffering thunderbolt; Because of exploding local deformation high temperature appears and clashes into shock wave in external impact; Because of the spontaneous combustion of corrosion products sets off an explosion; Because of the outer naked light calcination of pipeline and cover heat accumulation high temperature explode.
" coal mine gas and fine spray mixed conveying method and the device " of patent of invention 200510044290.0, the solution that provides a kind of low-concentration fuel to carry; This scheme is utilized the mode of atomized water spray, makes low-concentration fuel in the pipeline keep saturated humidity and is not higher than the temperature of the whole steam points of water smoke; This method is just controlled the low-concentration fuel temperature, and the low-concentration fuel burning forms, propagates and the flash burn condition of blast and all not eliminations of combustion propagation spatial condition, and the blast wave propagation can not be eliminated and stop to thin water smoke; In addition, the combustion gas saturated humidity is also carried fine drop secretly, to the equipment of rear end, as, internal-combustion engine causes irreversible lesion, does not meet the rear end equipment requirement; Simultaneously, water smoke, oxygen and the coexistence of other corrosive gas, the transporting system seriously corroded, the life-span reduces greatly, and owing to the four seasons and north and south temperature reason, the problem of ruining, losing efficacy is frozen in the water system existence, jeopardizes safety.
Summary of the invention:
The present invention is exactly at the problems referred to above, provides a kind of and is not damaging under the pipe condition, can effectively prevent the low-concentration fuel gas transportation pipeline that explodes.
For realizing above-mentioned purpose of the present invention, the present invention adopts following technological scheme, the present invention includes pipeline, is provided with vertical passage in its structure outline pipeline, and the equivalent diameter of vertical passage is less than or equal to the flame-out equivalent diameter of low-concentration fuel.
Beneficial effect of the present invention:
Because the present invention does not adopt the way of patent 200510044290.0, therefore, make not infringement of gas pipeline; In addition, be provided with vertical passage in the pipeline, the equivalent diameter of vertical passage is less than or equal to the flame-out equivalent diameter of low-concentration fuel, the Security of having guaranteed to carry low-concentration fuel.
Description of drawings:
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the sectional view of another kind of structure;
Fig. 4 is the sidewall structure schematic representation of vertical passage.
Embodiment:
The present invention includes pipeline 1, be provided with vertical passage 2 in the pipeline 1, the equivalent diameter of vertical passage 2 is less than or equal to the flame-out equivalent diameter of low-concentration fuel.
On the flat board 4 of formation vertical passage 2 circular hole 6 or rectangular opening 5 can be set.
Can apply the material that can decay or absorb free radicals on the inwall of vertical passage 2, as, halogen containing flame-retardant.
The cross section of vertical passage 2 can be triangle 3 or rectangle.
Claims (5)
1. low-concentration fuel gas transportation pipeline comprises pipeline (1), it is characterized in that being provided with in the pipeline (1) vertical passage (2), and the equivalent diameter of vertical passage (2) is less than or equal to the flame-out equivalent diameter of low-concentration fuel.
2. low-concentration fuel gas transportation pipeline according to claim 1 is characterized in that vertical passage (2) is to be made of dull and stereotyped (4).
3. low-concentration fuel gas transportation pipeline according to claim 2 is characterized in that constituting on the flat board (4) of vertical passage (2) circular hole (6) or rectangular opening (5) is set.
4. low-concentration fuel gas transportation pipeline according to claim 1 is characterized in that applying on the inwall of vertical passage (2) material that can decay or absorb free radicals.
5. low-concentration fuel gas transportation pipeline according to claim 1, the cross section that it is characterized in that vertical passage (2) are triangle (3) or rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910010691A CN101832428A (en) | 2009-03-13 | 2009-03-13 | Low-concentration fuel transmission pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910010691A CN101832428A (en) | 2009-03-13 | 2009-03-13 | Low-concentration fuel transmission pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101832428A true CN101832428A (en) | 2010-09-15 |
Family
ID=42716596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910010691A Pending CN101832428A (en) | 2009-03-13 | 2009-03-13 | Low-concentration fuel transmission pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101832428A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242833A (en) * | 1997-10-21 | 2000-01-26 | 松下电器产业株式会社 | Explosion preventing apparatus for refrigerating machine using inflammable refrigerant |
| CN1740628A (en) * | 2005-08-23 | 2006-03-01 | 胜利油田胜利动力机械有限公司 | Coal mine gas and fine spray mixed conveying method and apparatus |
| CN2827438Y (en) * | 2005-10-11 | 2006-10-18 | 胜利油田胜利动力机械有限公司 | Small spray generator of gas supply pipe |
| CN201382209Y (en) * | 2009-03-13 | 2010-01-13 | 山东恒能环保能源设备有限公司 | Delivery duct for low concentration gas |
-
2009
- 2009-03-13 CN CN200910010691A patent/CN101832428A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1242833A (en) * | 1997-10-21 | 2000-01-26 | 松下电器产业株式会社 | Explosion preventing apparatus for refrigerating machine using inflammable refrigerant |
| CN1740628A (en) * | 2005-08-23 | 2006-03-01 | 胜利油田胜利动力机械有限公司 | Coal mine gas and fine spray mixed conveying method and apparatus |
| CN2827438Y (en) * | 2005-10-11 | 2006-10-18 | 胜利油田胜利动力机械有限公司 | Small spray generator of gas supply pipe |
| CN201382209Y (en) * | 2009-03-13 | 2010-01-13 | 山东恒能环保能源设备有限公司 | Delivery duct for low concentration gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100915 |