CN205026395U - Low concentration gas distributing device for - Google Patents
Low concentration gas distributing device for Download PDFInfo
- Publication number
- CN205026395U CN205026395U CN201520796614.5U CN201520796614U CN205026395U CN 205026395 U CN205026395 U CN 205026395U CN 201520796614 U CN201520796614 U CN 201520796614U CN 205026395 U CN205026395 U CN 205026395U
- Authority
- CN
- China
- Prior art keywords
- gas
- pipeline
- fire retardant
- gas pipeline
- arranges
- 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.)
- Active
Links
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Laying Of Electric Cables Or Lines Outside (AREA)
Abstract
The utility model provides a low concentration gas distributing device for, includes gas air pipe, natural gas pipeline and gas mixture delivery line, the gas air pipe is connected to the coal mine gas air supply, natural gas tube coupling to natural gas air supply, set up the check valve on the gas air pipe, its characterized in that: set up the governing valve on the natural gas pipeline, this governing valve is connected with control system, set up methane concentration detection appearance on the gas mixture delivery line, this methane concentration detection appearance is connected with control system, the utility model has the advantages that stabilize the concentration of gas, and it is interval to make it be higher than the explosion, ensures the security of gas utilization.
Description
Technical field
The utility model relates to low concentration gas gas and utilizes field; Be specifically related to a kind of low concentration gas gas air distributing device.
Background technique
According to the definition in country's " coal mine light concentration mash gas Cemented filling safe-guard system design code ", coal mine light concentration mash gas gas refers to that volume percent methane is more than or equal to 3% and is less than the coal mine gas of 30%.In national Eleventh Five-Year Plan about " large oil and gas fields and cbm development " policy promulgate since, China's gas utilize rapid technological improvement, the technology that utilizes of low concentration gas gas is also arisen at the historic moment; As everyone knows, at normal temperatures and pressures, gas explosion limits is 5%-16%, and the concentration of a lot of low concentration gas gas itself is exactly in this explosion limits, quite a few mash gas concentration is also had to be on the verge of this explosion limits, in mining process, also there is the situation of objective fluctuation in mash gas concentration, once arrival explosion limits, be easy to blast, bring great potential safety hazard to the utilization of low concentration gas.
Model utility content
Technical problem to be solved in the utility model is the situation for prior art, provides a kind of low concentration gas gas air distributing device that low concentration gas is safe on stream that can ensure.
The utility model solves the problems of the technologies described above adopted technological scheme: a kind of low concentration gas gas air distributing device, comprises gas pipeline, gas pipeline and mixture output tube road; Described gas pipeline is connected to coal mine gas source of the gas, and described gas pipeline is connected to natural air-air source; Described gas pipeline arranges one-way valve; It is characterized in that: described gas pipeline arranges modulating valve, this modulating valve is connected with control system; Described mixture output tube road arranges methane concentration detector, and this methane concentration detector is connected with control system; The concentration that the aperture of described modulating valve is detected according to described methane concentration detector by described control system controls.
Described gas pipeline arranges virgin gas fire retardant device, described gas pipeline is arranged rock gas fire retardant device, described mixture output tube road arranges mixed gas fire retardant device.If blasted when distribution, fire retardant device can prevent travel of flame, and danger is only limitted among a small circle.
Pipeline between described virgin gas fire retardant device, described rock gas fire retardant device, described mixed gas fire retardant device arranges pressure relief device.When blasting, pressure relief device can discharge rapidly the energy of explosion time, protects device of the present utility model not to be damaged.
The utility model utilizes methane concentration detector to regulate the aperture of modulating valve on gas pipeline, the i.e. flow of gas pipeline, make mixture output tube road methane concentration keep stable and make this concentration higher than between gas blast area, guarantee the Security of gas conveying or later-stage utilization process; The utility model also arranges fire retardant device and pressure relief device on pipeline, ensures that this equipment safety runs.
Accompanying drawing explanation
Fig. 1 is structural drawing of the present utility model;
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Fig. 1 illustrates a mode of execution of the present utility model, and it comprises gas pipeline 11, gas pipeline 12 and mixture output tube road 13; Gas pipeline 11 is connected to coal mine gas source of the gas 1, and gas pipeline 12 is connected to natural air-air source 6; Discharge from mixture output tube road 13 after coal mine mash gas and rock gas converge to a place; The methane concentration of natural air-air source 6 is higher than coal mine gas source of the gas 1, and pressure in pressure ratio gas pipeline 11 in gas pipeline 12 is high.
Gas pipeline 11 sets gradually virgin gas fire retardant device 2, one-way valve 3.Because the pressure of gas pipeline is higher than gas pipeline, prevent gas from pouring in down a chimney to coal mine gas source of the gas so arrange one-way valve 3 on gas pipeline.
Gas pipeline 12 sets gradually modulating valve 5, rock gas fire retardant device 9.Modulating valve 5 is connected with control system 10.
Mixture output tube road 13 is arranged mixed gas fire retardant device 7 and methane concentration detector 8.Methane concentration detector 8 is connected with control system 10, and methane concentration detector 8 sends the methane concentration detected to control system 10, and control system sends the instruction of controlling opening of valve after this checkout value and setting value being compared again to modulating valve 5.Automatically control by control system the stability effectively ensureing mixture output tube road methane concentration, and setting value is higher than the methane concentration guarantee gas safe transport of gas explosion limits.
Due to the possibility that mixed gas is uneven or other reasons can be blasted in air mixing process, therefore on gas pipeline 11, gas pipeline 12 and mixture output tube road 13, all fire retardant device is set, can effectively prevent flame spread and in the scope that loss is confined between above-mentioned three fire retardant devices.In order to discharge the energy of explosion time as early as possible, at virgin gas fire retardant device 2, between rock gas fire retardant device 9 and mixed gas fire retardant device 7, pipeline arranges pressure relief device 4.This pressure relief device 4 can be rupture disk, also can be Decompression valves.
The utility model utilizes methane concentration detector to regulate the aperture of modulating valve, makes mixture output tube road methane concentration keep stable and make this concentration higher than between gas blast area, guarantees the Security of gas conveying or later-stage utilization process.The utility model also arranges fire retardant device and pressure relief device on pipeline, guarantees the Security of this plant running.
Claims (3)
1. a low concentration gas gas air distributing device, comprises gas pipeline (11), gas pipeline (12) and mixture output tube road (13); Described gas pipeline (11) is connected to coal mine gas source of the gas (1), and described gas pipeline (12) is connected to natural air-air source (6); Described gas pipeline (11) arranges one-way valve (3); It is characterized in that: described gas pipeline (12) is arranged modulating valve (5), this modulating valve (5) is connected with control system (10); Described mixture output tube road (13) arranges methane concentration detector (8), and this methane concentration detector (8) is connected with control system (10); The concentration that the aperture of described modulating valve (5) is detected according to described methane concentration detector (8) by described control system (10) controls.
2. low concentration gas gas air distributing device according to claim 1, it is characterized in that: described gas pipeline (11) arranges virgin gas fire retardant device (2), described gas pipeline (11) is arranged rock gas fire retardant device (9), described mixture output tube road (13) arranges mixed gas fire retardant device (7).
3. low concentration gas gas air distributing device according to claim 2, is characterized in that: the pipeline between described virgin gas fire retardant device (2), described rock gas fire retardant device (9), described mixed gas fire retardant device (7) arranges pressure relief device (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520796614.5U CN205026395U (en) | 2015-10-12 | 2015-10-12 | Low concentration gas distributing device for |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520796614.5U CN205026395U (en) | 2015-10-12 | 2015-10-12 | Low concentration gas distributing device for |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205026395U true CN205026395U (en) | 2016-02-10 |
Family
ID=55258925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520796614.5U Active CN205026395U (en) | 2015-10-12 | 2015-10-12 | Low concentration gas distributing device for |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205026395U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405413A (en) * | 2018-11-17 | 2019-03-01 | 杭州宏盛中弘新能源有限公司 | A kind of coalbed methane containing oxygen low temperature distillation system that avoiding explosion limit and method |
| CN110985202A (en) * | 2019-11-24 | 2020-04-10 | 中煤科工集团重庆研究院有限公司 | Cold, heat and electricity triple supply system based on low-concentration gas |
| CN111121067A (en) * | 2019-11-24 | 2020-05-08 | 中煤科工集团重庆研究院有限公司 | Method for utilizing low-concentration gas |
-
2015
- 2015-10-12 CN CN201520796614.5U patent/CN205026395U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109405413A (en) * | 2018-11-17 | 2019-03-01 | 杭州宏盛中弘新能源有限公司 | A kind of coalbed methane containing oxygen low temperature distillation system that avoiding explosion limit and method |
| CN109405413B (en) * | 2018-11-17 | 2024-01-30 | 杭州宏盛中弘新能源有限公司 | Oxygen-containing coal bed gas cryogenic rectification system and method avoiding explosion limit |
| CN110985202A (en) * | 2019-11-24 | 2020-04-10 | 中煤科工集团重庆研究院有限公司 | Cold, heat and electricity triple supply system based on low-concentration gas |
| CN111121067A (en) * | 2019-11-24 | 2020-05-08 | 中煤科工集团重庆研究院有限公司 | Method for utilizing low-concentration gas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205026395U (en) | Low concentration gas distributing device for | |
| CN104775843B (en) | A kind of liquid nitrogen fireproof fire-extinguishing system and method | |
| CN204436361U (en) | A kind of underground coal mine Hydraulic fracturing pressure flow quantity intelligent adjusting device | |
| CN105464696B (en) | Liquid nitrogen is pressurized fireproof fire-extinguishing system and method | |
| CN203201588U (en) | Circular seam injecting type gas diluter | |
| CN204285463U (en) | A kind of device for multifuel combustion mine gas and natural gas | |
| CN203963504U (en) | The stable system of heating value of natural gas | |
| CN205445661U (en) | Liquid nitrogen pressure boost fire extinction/protection system | |
| CN106223921B (en) | A kind of gas fracturing device | |
| CN205026696U (en) | Closed ground of oil plant torch assembly | |
| CN206816291U (en) | Suitable for the high efficiency fire extinguishing system of well industrial and mineral well shaft | |
| CN204737248U (en) | Avoid combustible liquid storage tank gaseous phase to fire and suppressed and press damaged device | |
| CN204254277U (en) | A kind of timesharing reduction valve | |
| CN104843375A (en) | Method for preventing gas-phase blasting of organic ester storage tanks and reducing volatile matter discharge | |
| CN104329672A (en) | Device and method for co-firing mine gas and natural gas | |
| CN205261223U (en) | Device is diffused to dual fail -safe safety | |
| CN202673343U (en) | Oxygen supply system of mine rescue capsule | |
| CN204972759U (en) | Intelligent fire control device of saving oneself is stored to hazardous articles | |
| CN104925410A (en) | Method for preventing gas-phase burning explosion of alkane storage tank | |
| CN205226865U (en) | CNG underground gas storage and air feeder | |
| CN205155571U (en) | Super wide pressure pressure regulating air feeder of smart about formula | |
| CN104859978A (en) | Method for avoiding organic ester storage tank gas-phase burning and explosion and built-up pressure breaking | |
| CN204726963U (en) | Prevent the device that combustible liquid storage tank region fire gas phase is propagated | |
| CN103383045B (en) | A kind of leading type pressure regulator valve heating system containing overvoltage protection | |
| CN103438356B (en) | Civilian gas tetrahydrothiophene adding device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 315505 Zhejiang Province, Ningbo city Fenghua District streets Xiwu Shang Qiao Road No. 18 Patentee after: NINGBO BAOSI ENERGY EQUIPMENT Co.,Ltd. Address before: 315505 Zhejiang province Fenghua city streets Xiwu Shang Qiao Road No. 18 Patentee before: NINGBO BAOSI ENERGY EQUIPMENT Co.,Ltd. |