CN2085414U - Injecting and emission device for gas emission and liquid injecting for coal bed - Google Patents
Injecting and emission device for gas emission and liquid injecting for coal bed Download PDFInfo
- Publication number
- CN2085414U CN2085414U CN 91204945 CN91204945U CN2085414U CN 2085414 U CN2085414 U CN 2085414U CN 91204945 CN91204945 CN 91204945 CN 91204945 U CN91204945 U CN 91204945U CN 2085414 U CN2085414 U CN 2085414U
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- China
- Prior art keywords
- injecting
- emission device
- pipe
- reducing joint
- emission
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model discloses an injecting and emission device for gas emission and liquid injecting for the coal bed, characterized in that a seamless steel tube is welded on a core tube and a reducing joint with a flexible burst resisting hose arranged in the middle for connection. The both ends are pressed by a sheath. One end of a joint body is engaged with the reducing joint and is fixed through a gland nut. The other end of the reducing joint is welded with the seamless steel tube. Thus, water or liquid can pass through a sealing liquid pipeline and can enter the interior of the injecting and emission device from the outside of the injecting and emission device. Thereby, the functions of injecting and emission can be realized. The injecting and emission device can be applied to coal ingredient cracking experiments, coalbed gas pressure tests, coal ingredient flood-pot experiments for obtaining the permeability coefficient of the coal ingredient, etc.
Description
The utility model is that the injecting and emission device that is used for coal bed gas drainage and liquid injection is called for short injecting and emission device, belongs to the fluid injection extraction and suppresses coal and the outstanding treatment technology of gas.
At present, in coal and the outstanding treatment technology of gas, gas drainage under suction and fluid injection are carried out respectively in coal body.In the most mines of China, cement mortar material sealing liquid injection pipe is generally adopted in fluid injection and extraction, annular spaces between releasing pipe and the hole wall, connect fluid injection and extraction kinetic pump then, realize fluid injection or the function that draws out methane, abroad, as Britain, states such as West Germany mainly adopt cement mortar, resin, swell soil, sealing such as drilling cuttings releasing pipe, space between liquid injection pipe and the drill hole wall, and connect to realize fluid injection or extraction function with miscellaneous equipment, the seal section that the shortcoming of these equipment or technology is to use reaches 5～12 meters, can only use once, thereby when taking a lot of work, take material.
The purpose of this utility model provides and a kind ofly can realize drawing out methane earlier in a boring, liquid is injected in the back, and seal section is short in the boring, and sealing load is adjustable, and is simple in structure, easy to use, adapts to the injecting and emission device of three-dimensional space either direction.
The purpose of this utility model is to realize like this; a kind of injecting and emission device that is used for coal bed gas drainage and liquid injection is by fluid injection extraction interface; reducing joint; clamp nut; fittings body; high-pressure rubber pipe; seamless steel pipe; the core pipe; cartridge and sheath are formed; wherein cartridge is the seal member between injecting and emission device and the hole wall; it is supported by a core pipe; two ends are by sheath densification and protection; seamless steel pipe is threaded with core is effective; fittings body one end and reducing joint ability to speak are closed; connect by clamp nut; transmit the power of rig, injecting and emission device is pushed or withdraw from boring.Simultaneously,, the aqueous liquid body is entered in the injecting and emission device from the injecting and emission device outside through the sealing fluid pipeline, and be connected with the core pipe by high-pressure rubber pipe, seamless steel pipe because reducing joint is welded with seamless steel pipe.After injecting and emission device arrives the interior precalculated position of boring, leave rig, set up fluid injection extraction interface, releasing pipe is connected with interface, can finishes the extraction function of impregnator, shed extraction pipeline, connect liquid injection pipe, just can finish the fluid injection function, seamless steel pipe is connected with attached pressure meter, stop valve, distributing valve, forms the sealing fluid function of injecting.
Concrete structure of the present utility model and workflow are provided by following examples and accompanying drawing thereof.
Fig. 1 is the structural representation of the utility model injecting and emission device
Fig. 2 is the workflow diagram of the utility model injecting and emission device
Please referring to Fig. 1, the utility model injecting and emission device is made up of fluid injection extraction interface (1), reducing joint (3), clamp nut (4), fittings body (5), high-pressure rubber pipe (6), seamless steel pipe (7), core pipe (8), sealed rubber pipe (9), sheath (10), wherein: (please referring to Fig. 1 and Fig. 2)
1, fluid injection extraction interface (1) makes the outer extraction of injecting and emission device (13) and boring (11), priming device form to annotate and takes out flow process by extraction pipeline (15) or the fluid injection pipeline (14) of the Fig. 2 that is threaded.
2, drilling rod (2) is boring (11) inner high voltage fluid injection pipeline.
3, reducing joint (3) one ends are connected with drilling rod (2) with screw thread, an end and fittings body (5) engagement.
4, clamp nut (4) is connected with reducing joint (3), and pressed joint body (5) is finished being connected of reducing joint (3) and fittings body (5).
5, fittings body (5) connects sheath (10) and reducing joint (3).
6, high-pressure rubber pipe (6) connects to form the sealing fluid pipeline with seamless steel pipe (7).
7, seamless steel pipe (7) is the sealing fluid pipeline, and one section is connected with core pipe (8), and one section is connected with reducing joint (3).
8, core pipe (8) is connected with sealed rubber pipe (9), forms the sealing sap cavity.
9, cartridge (9) is passed through the vulcanizing treatment aftershaping around core pipe (8) by multilayer nylon cord and rubber, and makes its expansion by sealed fluid pressure, compresses borehole wall (12).
10, sheath (10) is contained in the two ends of sealed rubber pipe (9), destroys cartridge when preventing to load and unload in boring (11).
During work, (referring to Fig. 2) at first fastens stop valve (44), open to cut and go up valve (45), open injection pump (22), the sealing fluid pipeline (14) (referring to Fig. 1) that water or liquid footpath are made up of seamless steel pipe (7) and high-pressure rubber pipe (6) enters between core pipe (8) and the cartridge (9), cartridge is under hydraulic action, expanded radially, sealing boring (11), then extraction interface (23) is connected with releasing pipe (15), open extraction pump (21), extraction boring (11) interior coal-bed gas.After extraction finishes, fluid injection extraction interface (1) is connected with extraction interface (23), open stop valve (44), the liquid that water injecting pump (22) provides can inject the coal seam.
Behind the fluid injection end-of-job, close water injecting pump (22), pressure to be sealed and liquid filling pressure are 0 o'clock, open rig, withdraw from injecting and emission device (13), owing on the clamp nut (4) reverse blade is installed, injecting and emission device (13) is when withdrawing from, promptly screw the effect that clamp nut (4) has just played reaming and repaiied the hole, help injecting and emission device (13) and withdraw from smoothly by drilling rod (2).
Other labels of Fig. 1 of the present utility model, Fig. 2 are (31), (32), (33) pressure meter, (34), (35) flow meter, (18,19) stop valve, (24) distributing valve, (16) water injecting pipeline.
The utility model injecting and emission device is through the field trial of laboratory experiment and gas projecting mine, and is functional, can satisfy China's coal-mine projecting mine fluid injection extraction, prevent the needs that coal and gas are outstanding, can in same boring, realize drawing out methane earlier, afterwards injecting the technology of liquid, and liquid filling pressure is stable, adjustable, sealing load is stable, and is adjustable, and sealing is reliable, in light weight, easy for installation, simple to operate, the fluid injection extraction is effective.
The utility model injecting and emission device main body is cylindric, long 1.4M, and appearance and size φ 89, and maximum sealing load is 25MPa between borehole wall and the injecting and emission device, and liquid filling pressure is 23MPa to the maximum.
Claims (4)
1, a kind of injecting and emission device that is used for coal bed gas drainage and liquid injection, it is characterized in that it is by fluid injection extraction interface (1), reducing joint (3), clamp nut (4), fittings body (5), high-pressure rubber pipe (6), seamless steel pipe (7), core pipe (8), cartridge (9) and sheath (10) are formed, wherein, cartridge (9) is supported by core pipe (8), two ends are by sheath (10) densification, form the sealing sap cavity, fittings body (5) one ends and reducing joint (3) engagement, and it is fastening by clamp nut (4), the other end engages with screw thread and sheath (10), seamless steel pipe (7) one ends are welded in the reducing joint (3), and the other end links to each other with core pipe (8) with screw thread by high-pressure rubber pipe (6).
2, injecting and emission device according to claim 1 is characterized in that described clamp nut one end is connected with reducing joint (3) and reverse blade is housed.
3, injecting and emission device according to claim 1, it is to pass through the vulcanizing treatment aftershaping around core pipe (8) by multilayer nylon cord and rubber to it is characterized in that described cartridge (9).
4, injecting and emission device according to claim 1 is characterized in that (7) one sections in described seamless steel pipe is connected with core pipe (8), and one section is connected with reducing joint (3), and with high-pressure rubber pipe (6) combination, form the sealing fluid pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91204945 CN2085414U (en) | 1991-04-03 | 1991-04-03 | Injecting and emission device for gas emission and liquid injecting for coal bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 91204945 CN2085414U (en) | 1991-04-03 | 1991-04-03 | Injecting and emission device for gas emission and liquid injecting for coal bed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2085414U true CN2085414U (en) | 1991-09-25 |
Family
ID=4914911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 91204945 Withdrawn CN2085414U (en) | 1991-04-03 | 1991-04-03 | Injecting and emission device for gas emission and liquid injecting for coal bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2085414U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913272A (en) * | 2011-08-05 | 2013-02-06 | 淮南矿业(集团)有限责任公司 | Device and method for displacing methane gas with positive pressure air |
-
1991
- 1991-04-03 CN CN 91204945 patent/CN2085414U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102913272A (en) * | 2011-08-05 | 2013-02-06 | 淮南矿业(集团)有限责任公司 | Device and method for displacing methane gas with positive pressure air |
| CN102913272B (en) * | 2011-08-05 | 2015-12-09 | 淮南矿业(集团)有限责任公司 | The device and method of gas replacement with positive pressure air |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |