CN201382209Y - Delivery duct for low concentration gas - Google Patents
Delivery duct for low concentration gas Download PDFInfo
- Publication number
- CN201382209Y CN201382209Y CN200920011817U CN200920011817U CN201382209Y CN 201382209 Y CN201382209 Y CN 201382209Y CN 200920011817 U CN200920011817 U CN 200920011817U CN 200920011817 U CN200920011817 U CN 200920011817U CN 201382209 Y CN201382209 Y CN 201382209Y
- Authority
- CN
- China
- Prior art keywords
- low
- gas
- low concentration
- vertical passage
- duct
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Pipeline Systems (AREA)
Abstract
A delivery duct for low concentration gas relates to a duct for delivering gas with low concentration, in particular to a duct for delivering low concentration mixed gas which has the danger of exploding. The utility model provides the delivery duct for low concentration gas, which can effectively prevent explosion without damaging the duct. The utility model comprises a duct, the structure is mainly characterized in that a longitudinal passage is arranged in the duct, and the equivalent diameter of the longitudinal passage is smaller or equal to the flameout equivalent diameter of the low concentration gas.
Description
Technical field:
The utility model 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.
The model utility content:
The utility model 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 utility model, the utility model adopts following technological scheme, and the utility model comprises 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.
The beneficial effects of the utility model:
Because the utility model 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 utility model;
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 utility model comprises pipeline 1, is provided with vertical passage 2 in the pipeline 1, and 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, a kind of 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, a kind of 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, a kind of 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, a kind of 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, a kind of 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 |
|---|---|---|---|
| CN200920011817U CN201382209Y (en) | 2009-03-13 | 2009-03-13 | Delivery duct for low concentration gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920011817U CN201382209Y (en) | 2009-03-13 | 2009-03-13 | Delivery duct for low concentration gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382209Y true CN201382209Y (en) | 2010-01-13 |
Family
ID=41525684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920011817U Expired - Fee Related CN201382209Y (en) | 2009-03-13 | 2009-03-13 | Delivery duct for low concentration gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382209Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832428A (en) * | 2009-03-13 | 2010-09-15 | 山东恒能环保能源设备有限公司 | Low-concentration fuel transmission pipeline |
| CN110598244A (en) * | 2019-07-26 | 2019-12-20 | 中国矿业大学 | Gas cluster life cycle prediction and gas concentration prediction method based on same |
-
2009
- 2009-03-13 CN CN200920011817U patent/CN201382209Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832428A (en) * | 2009-03-13 | 2010-09-15 | 山东恒能环保能源设备有限公司 | Low-concentration fuel transmission pipeline |
| CN110598244A (en) * | 2019-07-26 | 2019-12-20 | 中国矿业大学 | Gas cluster life cycle prediction and gas concentration prediction method based on same |
| CN110598244B (en) * | 2019-07-26 | 2021-03-12 | 中国矿业大学 | Gas cluster life cycle prediction and gas concentration prediction method based on same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104791811B (en) | A kind of flare system | |
| CN110143379B (en) | Safety device of low-pressure gas system for discharging VOCs (volatile organic compounds) from storage tank | |
| CN201382209Y (en) | Delivery duct for low concentration gas | |
| CN201137969Y (en) | Automatic detonation igniting apparatus on earth for flare | |
| CN203464326U (en) | Fuel delivery system of tail gas boiler | |
| CN101042292A (en) | No explosive core firecracker | |
| CN204268488U (en) | Closed skid incinerator | |
| CN101832428A (en) | Low-concentration fuel transmission pipeline | |
| CN105299661B (en) | A kind of processing system and method suitable for rich acetylene torch gas | |
| CN101871547A (en) | Low-concentration fuel gas transportation pipeline | |
| CN209475437U (en) | A kind of device for inhibiting combustible gas deflagration flame to propagate | |
| CN102153193A (en) | System for recycling biogas | |
| CN201363757Y (en) | Self-ignition device of blowing air combustion furnace | |
| CN202682609U (en) | Automatic fire extinguishing device | |
| CN105674319A (en) | Compound fuel system based on ammonia gas and oxygen | |
| CN107780962A (en) | A kind of gas empties pipeline safety device | |
| CN206221092U (en) | The hydrogen supply device of fuel engine power generation machine | |
| CN101581210A (en) | Method for extinguishing underground gasification furnace by charging nitrogen | |
| CN202117643U (en) | Novel ignition device | |
| CN103899347A (en) | Anti-explosion humidifier in coal mine | |
| CN205640891U (en) | Little oil of oxygen boosting surely fires coal burner | |
| CN2784767Y (en) | Blowout lighter for drilling | |
| CN103951536A (en) | Smokeless sulfur-free decoration spraying reagent for fireworks | |
| CN101912726A (en) | Method for extinguishing dry-method activated coke desulfurization adsorbent bed | |
| CN202955295U (en) | Explosion-proof device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20150313 |
|
| EXPY | Termination of patent right or utility model |