CN218345216U - Coal bed gas compression extraction element - Google Patents
Coal bed gas compression extraction element Download PDFInfo
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- CN218345216U CN218345216U CN202222504561.8U CN202222504561U CN218345216U CN 218345216 U CN218345216 U CN 218345216U CN 202222504561 U CN202222504561 U CN 202222504561U CN 218345216 U CN218345216 U CN 218345216U
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- bed gas
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- 239000003245 coal Substances 0.000 title claims abstract description 29
- 230000006835 compression Effects 0.000 title claims abstract description 16
- 238000007906 compression Methods 0.000 title claims abstract description 16
- 238000000605 extraction Methods 0.000 title claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 22
- 230000005540 biological transmission Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000005484 gravity Effects 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of stifled is separated to the coal bed gas reservoir, concretely relates to coal bed gas compression extraction element. The technical problem of low gas pressure of an outlet pipe for recovering the coal bed gas in the drainage and production water of the coal bed gas well at present is solved. A coal bed gas compression and extraction device comprises a box body; the middle part of one side of the box body is provided with an inlet, and a one-way valve is arranged at the inlet; the bottom of the side wall of the box body opposite to the inlet is provided with a water outlet, and the water outlet realizes the opening and closing of the water outlet through a sliding component; the top of the box body is provided with an opening; the opening circumference extends towards the interior of the box body to form an extension section, and the extension section and the circumference of the second conduit are movably sleeved with a moving assembly. The utility model has the advantages that: (1) the gas is compressed and extracted, so that the problem of insufficient output gas pressure depending on natural outflow is solved; (2) the gas transmission pressure and flow rate are improved, and the metering precision of the flowmeter is improved; (3) the double layers of the box body are internally provided with heat tracing belts, so that the normal use of the equipment in winter is ensured; (4) the bottom surface of the box body inclines towards the water outlet to ensure that the liquid flows out.
Description
Technical Field
The utility model belongs to the technical field of stifled is separated to the coal bed gas reservoir, concretely relates to coal bed gas compression extraction element.
Background
Drainage, depressurization and gas production are adopted for development of the coal bed gas, and in long-time exploitation, the water outlet of the coal bed gas well is often gas-containing, has relatively high content in some areas and can be ignited. Therefore, in order to recover the coal bed gas in the drainage and production water of the coal bed gas well, a device with simple structure and convenient operation needs to be designed to solve the problem.
Patent CN212225184U has announced coal bed gas recovery unit in coal bed gas row water production, CN208792991U has announced the double-phase metering device of coal bed gas well head gas water, and two utility model principles are the same, realize the separation and the measurement of water and gas through gravity and density, nevertheless discover to have following shortcoming in the practical application in-process: (1) the gas pressure of the gas outlet pipe is low, and when the gas is converged into the gas transmission pipeline from the gas outlet pipe to the outside, enough gas transmission pressure is lacked, so that the gas can be converged into the gas transmission pipeline only by pressurizing the gas (a pressurizing device with a complex structure and high cost is needed); (2) because the pressure is low, the gas flow rate is low, and the metering error of the flowmeter is relatively large; (3) the water inlet and the water outlet of the original device are kept horizontal, the lower part of the collecting device is always filled with water by utilizing the principle of a communicating vessel, and the device cannot be used due to freezing in winter.
Disclosure of Invention
The utility model discloses a solve the technical problem that outlet duct gas pressure that exists among the coal bed gas technique in the present recovery coal bed gas well drainage and production is low, provide a coal bed gas compression extraction element.
The utility model discloses an adopt following technical scheme to realize: a coal bed gas compression and extraction device comprises a box body; the middle part of one side of the box body is provided with an inlet, and a one-way valve is arranged at the inlet; the bottom of the side wall of the box body, which is opposite to the inlet, is provided with a water outlet, and the water outlet realizes the opening and closing of the water outlet through a sliding assembly; the sliding assembly comprises a sliding block, a baffle penetrating through the sliding block from top to bottom and a connecting rod connected to one side of the baffle, and the connecting rod is connected with a floating plate; the upper inner wall and the lower inner wall of the water outlet are respectively provided with a moving groove in a vertical direction, the top of the baffle is limited in the moving groove above, and the lower end of the baffle can be limited in the moving groove below to further seal the water outlet;
the top of the box body is provided with an opening and is connected with an air outlet pipe; the periphery of the opening extends towards the interior of the box body to form a hollow extension section, the bottom of the extension section is connected with a second conduit, the bottom of the second conduit is closed, and at least one side opening is reserved only on the side surface; the extension section and the periphery of the second conduit are movably sleeved with a moving assembly; the moving assembly comprises a moving plate sleeved outside the extension section and the second conduit, at least one pair of sliding grooves are formed in the part, corresponding to the extension section, of the inner wall of the box body, the periphery of the moving plate is clamped in the sliding grooves through at least one pair of clamping plates, and the clamping plates and the tops of the sliding grooves are connected with springs; at least one flow guide channel is formed in the moving plate, and each flow guide channel forms a first conduit; the first guide pipe is composed of a vertical section and a horizontal section, the bottom end of the vertical section is communicated with the interior of the box body, and one end of the horizontal section points to the side wall of the second guide pipe and can be communicated with a side opening of the second guide pipe.
The gas-liquid mixture enters the box body from the inlet through the one-way valve, and the gas-liquid mixture cannot flow backwards due to the existence of the one-way valve.
Along with the inflow of mixed liquid, the gas-liquid separation under the action of gravity, gas upward migration, liquid downward, along with the liquid level constantly rises, under the buoyancy, the kickboard rises, drives connecting rod, slider, baffle upward movement, and the baffle rises the delivery port and opens, along with the liquid level decline, kickboard, connecting rod, baffle decline, the delivery port is closed. The movable groove plays a limiting role, and the baffle and the sliding block are ensured to move in the vertical direction.
When the sections of the first guide pipe and the second guide pipe are overlapped, the gas with enhanced pressure is converged into the gas transmission pipeline through the gas outlet pipe by the first guide pipe and the second guide pipe, after the gas is output, the gas pressure is reduced, and the movable plate is restored to the original position under the action of elasticity and gravity; the first guide pipe and the second guide pipe are staggered in cross section, the air outlet channel is closed, and the steps are repeated in sequence.
Furthermore, the inner bottom surface of the box body inclines from the inlet side to the water outlet side; the mounting positions of the floating plate and the connecting rod are higher than the bottom of the baffle for a certain distance.
The bottom of the box inclines towards the water outlet to ensure the liquid to flow out, and the floating plate ensures a certain liquid level to play a role in sealing and isolating the gas, which is repeated in sequence.
Furthermore, the shell of the box body is of a hollow structure, a heat tracing band is arranged in the shell, and the shell is electrified and heated, so that the problem that equipment frozen in winter cannot be used is solved.
Compared with the prior patents of CN212225184U and CN208792991U, the novel application has the following advantages: (1) the gas is compressed and extracted, the technical problem of insufficient pressure of the output gas depending on natural flow is solved, and the device is simple in structure and low in cost; (2) the gas transmission pressure and flow rate are improved, and the metering precision of the flowmeter is improved; (3) the double-layer built-in heat tracing band of the box body ensures the normal use of the equipment in winter; (4) the bottom surface of the box body inclines towards the water outlet to ensure that the liquid flows out.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an enlarged schematic view a in fig. 1.
1-inlet, 2-one-way valve, 3-water outlet, 4-slide block, 5-connecting rod, 6-baffle, 7-moving groove, 8-floating plate, 9-box, 10-moving plate, 11-first conduit, 12-spring, 13-sliding groove, 14-clamping plate, 15-air outlet pipe, 16-second conduit and 17-extension section.
Detailed Description
Example 1
A coal bed gas compression and extraction device comprises a box body 9; an inlet 1 is formed in the middle of one side of the box body 9, and a one-way valve 2 is installed at the inlet 1; the bottom of the side wall of the box body 9 opposite to the inlet 1 is provided with a water outlet 3, and the water outlet 3 realizes the opening and closing of the water outlet 3 through a sliding component; the sliding assembly comprises a sliding block 4, a baffle 6 penetrating the sliding block 4 up and down and a connecting rod 5 connected to one side of the baffle 6, and the connecting rod 5 is connected with a floating plate 8; the inner walls of the upper box body 9 and the lower box body 9 in the water outlet 3 are respectively provided with a moving groove 7 in a vertical direction, the top of the baffle 6 is limited in the moving groove 7 above, and the lower end of the baffle 6 can be limited in the moving groove 7 below to further seal the water outlet 3;
the top of the box body 9 is provided with an opening and is connected with an air outlet pipe 15; the periphery of the opening extends towards the interior of the box body to form a hollow extension section 17, the bottom of the extension section 17 is connected with a second conduit 16, the bottom of the second conduit 16 is closed, and at least one side opening is reserved only on the side surface; the extension section 17 and the second conduit 16 are sleeved with a moving component; the moving assembly comprises a moving plate 10 sleeved outside an extension section 17 and a second guide pipe 16, at least one pair of sliding grooves 13 are formed in the part, corresponding to the extension section 17, of the inner wall of the box body 9, the periphery of the moving plate 10 is clamped in the sliding grooves 13 through at least one pair of clamping plates 14, and springs 12 are connected to the tops of the clamping plates 14 and the sliding grooves 13; at least one flow guide channel is arranged in the moving plate 10, and each flow guide channel forms a first conduit 11; the first guide pipe 11 is composed of a vertical section and a horizontal section, the bottom end of the vertical section is communicated with the inside of the box body 9, and one end of the horizontal section points to the side wall of the second guide pipe 16 and can be communicated with a side opening of the second guide pipe 16. The inner bottom surface of the box body 9 inclines from the inlet side to the outlet side. The shell of the box body 9 is of a hollow structure, and a heat tracing band is arranged in the shell. The floating plate 8 and the connecting rod 5 are arranged at a position higher than the bottom of the baffle 6 by a certain distance (as shown in figure 2). Under the normal state, the water section of the first conduit is lower than the side port of the second conduit; the liquid level in the box body needs to reach a certain height to open the baffle.
Example 2
The second conduit 16 is provided with a pair of side openings symmetrically arranged at two sides of the second conduit 16; the moving plate 7 is provided with two first conduits 11 which can be respectively communicated with two side openings of a second conduit 16.
Example 3
The center of the sliding block 4 is provided with a vertical hole, and the baffle 6 passes through the vertical hole and is adjusted in length and positioned through a pin. The structure is convenient for adjusting the position of the baffle, and can adjust the liquid level height, the moving stroke of the baffle and the like which need to be preset.
The utility model discloses a concrete implementation process:
(1) the gas-liquid mixture enters the box body from the inlet through the one-way valve, and the gas-liquid mixture cannot flow backwards due to the existence of the one-way valve;
(2) along with the inflow of the mixed liquid, the gas and the liquid are separated under the action of gravity, the gas moves upwards, the liquid moves downwards, along with the continuous rising of the liquid level, under the action of buoyancy, the floating plate rises to drive the connecting rod, the sliding block and the baffle to move upwards, the baffle rises to open the water outlet, along with the falling of the liquid level, the floating plate, the connecting rod and the baffle fall to close the water outlet, the bottom of the box inclines towards the water outlet to ensure the outflow of the liquid, the height of the floating plate ensures a certain liquid level to play a role in sealing and isolating the gas, and the steps are repeated in sequence;
(3) when the cross sections of the first guide pipe and the second guide pipe are overlapped, the gas is converged into the gas transmission pipeline through the gas outlet pipe by the first guide pipe and the second guide pipe, after the gas is output, the gas pressure is reduced, and the movable plate is restored to the original position under the action of elasticity and gravity; the sections of the first guide pipe and the second guide pipe are staggered, the air outlet channel is closed, and the steps are repeated in sequence;
(4) a heat tracing band is arranged in the box body, and the box body is electrified for heating, so that the problem that equipment frozen in winter cannot be used is solved.
Claims (8)
1. A coal bed gas compression and extraction device comprises a box body (9); the device is characterized in that the middle part of one side of the box body (9) is provided with an inlet (1), and a one-way valve (2) is arranged at the inlet (1); a water outlet (3) is formed in the bottom of the side wall, opposite to the inlet (1), of the box body (9), and the opening and closing of the water outlet (3) are realized through the sliding assembly by the water outlet (3); the sliding assembly comprises a sliding block (4), a baffle (6) penetrating through the sliding block (4) from top to bottom and a connecting rod (5) connected to one side of the baffle (6), and the connecting rod (5) is connected with a floating plate (8); the upper inner wall and the lower inner wall of the water outlet (3) are respectively provided with a moving groove (7) in a vertical direction, the top of the baffle (6) is limited in the moving groove (7) above, and the lower end of the baffle (6) can be limited in the moving groove (7) below to further seal the water outlet (3);
the top of the box body (9) is provided with an opening and is connected with an air outlet pipe (15); the opening periphery extends towards the interior of the box body (9) to form a hollow extension section (17), the bottom of the extension section (17) is connected with a second conduit (16), the bottom of the second conduit (16) is closed, and at least one side opening is reserved only on the side surface; the extension section (17) and the second conduit (16) are sleeved with a moving component; the moving assembly comprises a moving plate (10) sleeved outside the extension section (17) and the second guide pipe (16), at least one pair of sliding grooves (13) are formed in the part, corresponding to the extension section (17), of the inner wall of the box body (9), the periphery of the moving plate (10) is clamped in the sliding grooves (13) through at least one pair of clamping plates (14), and springs (12) are connected to the tops of the clamping plates (14) and the sliding grooves (13); at least one flow guide channel is arranged in the moving plate (10), and each flow guide channel forms a first conduit (11); the first guide pipe (11) is composed of a vertical section and a horizontal section, the bottom end of the vertical section is communicated with the inside of the box body (9), and one end of the horizontal section points to the side wall of the second guide pipe (16) and can be communicated with a side opening of the second guide pipe (16).
2. A coal bed gas compression and extraction device as claimed in claim 1, wherein the inner bottom surface of the box body (9) is inclined from the inlet side to the outlet side.
3. A coal bed gas compression and extraction device as claimed in claim 1 or 2, wherein the casing (9) is hollow and has a heat tracing band inside.
4. A coal bed gas compression and extraction device as claimed in claim 1 or 2, wherein the floating plate (8) and the connecting rod (5) are arranged at a position higher than the bottom of the baffle (6) by a certain distance.
5. A coal bed gas compression and extraction device as claimed in claim 3, wherein the floating plate (8) and the connecting rod (5) are arranged at a position higher than the bottom of the baffle plate (6) by a certain distance.
6. A coal bed gas compression and extraction device as claimed in claim 1 or 2, wherein the second conduit (16) is provided with a pair of side ports symmetrically arranged at two sides of the second conduit (16); the moving plate (10) is provided with two first conduits (11) which can be respectively communicated with two side openings of a second conduit (16).
7. A coal bed gas compression and extraction device as claimed in claim 3, wherein the second conduit (16) is provided with a pair of side ports symmetrically arranged at two sides of the second conduit (16); the moving plate (10) is provided with two first conduits (11) which can be respectively communicated with two side openings of a second conduit (16).
8. A coal bed gas compression and extraction device as claimed in claim 3, wherein the slide block (4) is provided with a vertical hole at the center, and the baffle (6) passes through the vertical hole and is adjusted in length and positioning by a pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222504561.8U CN218345216U (en) | 2022-09-22 | 2022-09-22 | Coal bed gas compression extraction element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222504561.8U CN218345216U (en) | 2022-09-22 | 2022-09-22 | Coal bed gas compression extraction element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218345216U true CN218345216U (en) | 2023-01-20 |
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ID=84895648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222504561.8U Active CN218345216U (en) | 2022-09-22 | 2022-09-22 | Coal bed gas compression extraction element |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218345216U (en) |
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2022
- 2022-09-22 CN CN202222504561.8U patent/CN218345216U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231107 Address after: 030006 No.170, Jinyang street, Xiaodian District, Taiyuan City, Shanxi Province Patentee after: Shanxi coal geological exploration and Research Institute Co.,Ltd. Address before: 030006 No.170, Jinyang street, Taiyuan City, Shanxi Province Patentee before: SHANXI COAL GEOLOGY SURVEYS Research Institute |