CN203587159U - Coal-bed gas drainage and exploitation water quantity metering device - Google Patents
Coal-bed gas drainage and exploitation water quantity metering device Download PDFInfo
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- CN203587159U CN203587159U CN201320700590.XU CN201320700590U CN203587159U CN 203587159 U CN203587159 U CN 203587159U CN 201320700590 U CN201320700590 U CN 201320700590U CN 203587159 U CN203587159 U CN 203587159U
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- water
- sedimentation
- bed gas
- filtration case
- measuring apparatus
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 238000001914 filtration Methods 0.000 claims abstract description 82
- 238000004062 sedimentation Methods 0.000 claims description 30
- 239000003245 coal Substances 0.000 claims description 27
- 238000000605 extraction Methods 0.000 claims description 20
- 210000004907 gland Anatomy 0.000 claims description 14
- 235000003332 Ilex aquifolium Nutrition 0.000 claims description 13
- 235000002296 Ilex sandwicensis Nutrition 0.000 claims description 13
- 235000002294 Ilex volkensiana Nutrition 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 11
- 235000014121 butter Nutrition 0.000 abstract description 9
- 239000010883 coal ash Substances 0.000 abstract description 9
- 238000001556 precipitation Methods 0.000 abstract description 7
- 239000004576 sand Substances 0.000 abstract description 4
- 239000012535 impurity Substances 0.000 abstract 2
- 238000005192 partition Methods 0.000 abstract 2
- 239000004575 stone Substances 0.000 abstract 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 108010066278 cabin-4 Proteins 0.000 description 5
- 238000005065 mining Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000000356 contaminant Substances 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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Abstract
The utility model discloses a coal-bed gas drainage and exploitation water quantity metering device, which comprises a precipitation filtering box arranged in front of a metering water meter, wherein at least three filtering cabins are arranged in the precipitation filtering box, partition sheets are arranged between the filtering cabins, the upper end parts of the partition sheets are respectively provided with filter nets, the sizes of mesh holes of each filtering net are sequentially reduced in the water flowing direction, a gas outlet pipe is also connected onto the precipitation filtering box, and gas entering the precipitation filtering box is directly conveyed into a pipeline arranged behind the metering water meter through the gas outlet pipe. Through adopting the mode, the coal-bed gas drainage and exploitation water quantity metering device has the advantages that the precipitation filtering box is arranged on a sunk type water discharge pipeline, impurities such as butter, coal ash, sand and stones in the water can be filtered, in addition, a small amount of gas in the water can be eliminated, the water meter damage caused after the impurities such as the butter, the coal ash, the sand and the stones pass through the water meter is avoided, the normal work of the water meter is ensured, and in addition, the measuring precision is high.
Description
Technical field
The utility model relates to coal bed gas extraction field, particularly relates to a kind of coal bed gas extraction water consumption measuring apparatus.
Background technology
Coal-seam gas, refer to compose exist in coal seam, take methane as principal ingredient, take and be adsorbed on matrix of coal particle surface and be free in coal hole or be dissolved in the hydrocarbon gas in coal seam water as main, part, it is the associated minerals resource of coal, belonging to unconventional rock gas, is cleaning, high-grade energy and the industrial chemicals emerging in the world in nearly ten or twenty year.
Coal bed gas extraction utilizes mechanical lift equipment that the water in pit shaft is given rise to ground, progressively reduces sand face pressure.Along with sand face pressure reduces, form gradually pressure cone of depression also progressively to external expansion, and then progressively reduce the reservoir pressure in coal seam, force the coal-seam gas that is adsorbed on matrix of coal internal pore surface to be desorbed, then the non-darcy flow by matrix pores and be diffused into natural crack, coal-seam gas again from crack seepage flow to pit shaft, thereby be plucked out of.
In mining process, the quality of controlling water is extremely important to mining operating mode, but be mixed with butter, coal ash or sandstone in mining water out, in process metering water meter, easily damage water meter, the a small amount of gas containing in water, as methane, if through metering water meter, easily cause water meter measurement inaccurate.
Utility model content
The technical matters that the utility model mainly solves is to provide a kind of coal bed gas extraction water consumption measuring apparatus, can filter a small amount of gas of eliminating in butter, coal ash or sandstone and water, avoids the infringement to water meter, guarantees that water meter normally works.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of coal bed gas extraction water consumption measuring apparatus is provided, comprise: one is located at the sedimentation and filtration case in metering water meter the place ahead, in sedimentation and filtration case, be provided with at least 3 filtering cabins, between described filtering cabin, be provided with holly strip, the upper end of described holly strip is equipped with filter screen, the mesh size of each filter screen is that the flow direction along water diminishes successively, on described sedimentation and filtration case, be also connected with an escape pipe, described escape pipe is directly delivered to the gas entering in sedimentation and filtration case in the pipeline at metering water meter rear.
In preferred embodiment of the utility model, the area of described filter screen is less than or equal to half of holly strip area.
In preferred embodiment of the utility model, described filter screen is blade inserting filter screen.
In preferred embodiment of the utility model, 3 filtering cabins are respectively the first filtering cabin, the second filtering cabin and the 3rd filtering cabin, the volume of described the first filtering cabin is to account for half of sedimentation and filtration case volume, the second filtering cabin equates with the volume of the 3rd filtering cabin, all accounts for 1/4th of sedimentation and filtration case volume.
In preferred embodiment of the utility model, the water inlet of described sedimentation and filtration case and water delivering orifice are opened in middle part or the bottom of casing.
In preferred embodiment of the utility model, described sedimentation and filtration case is provided with a gland bonnet, and described escape pipe is located on described gland bonnet.
In preferred embodiment of the utility model, the inner ring of described gland bonnet is provided with sealing cavernous body, and sedimentation and filtration case is provided with the bulge-structure of corresponding described sealing cavernous body.
In preferred embodiment of the utility model, on described escape pipe, be equipped with an operation valve.
In preferred embodiment of the utility model, on described gland bonnet or in addition, one seal snap close.
The beneficial effects of the utility model are: the utility model coal bed gas extraction water consumption measuring apparatus is provided with sedimentation and filtration case on the drainage pipeline of sunk type, can be by contaminant filters such as the butter in water, coal ash and sandstones, and a small amount of gas in elimination water, avoid butter, coal ash, sandstone and gas after water meter, to damage water meter, guarantee that water meter normally works, and measuring accuracy is high.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skills, do not paying under the prerequisite of creative work, can also according to these accompanying drawings, obtain other accompanying drawing, wherein:
Fig. 1 is the structural representation of the utility model coal bed gas extraction water consumption measuring apparatus one preferred embodiment;
Fig. 2 is the left view that is equipped with gland bonnet of the water consumption of coal bed gas extraction shown in Fig. 1 measuring apparatus;
In accompanying drawing, the mark of each parts is as follows: 1, sedimentation and filtration case, 2, holly strip, 3, filter screen, 4, the first filtering cabin, the 5, second filtering cabin, the 6, the 3rd filtering cabin, 7, water inlet, 8, water delivering orifice, 9, gland bonnet, 10, operation valve, 11, pipeline, 12, sealing cavernous body, 13, bulge-structure, 14, sealing snap close, 15, escape pipe, 16, metering water meter.
Embodiment
Below the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only a part of embodiment of the present utility model, rather than whole embodiment.Embodiment based in the utility model, those of ordinary skills are not making all other embodiment that obtain under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:
A kind of coal bed gas extraction water consumption measuring apparatus, comprise: one is located at the sedimentation and filtration case 1 in metering water meter 16 the place aheads, in sedimentation and filtration case 1, be provided with at least 3 filtering cabins, between described filtering cabin, be provided with holly strip 2, the upper end of described holly strip 2 is equipped with filter screen 3, and the mesh size of each filter screen 3 is that the flow direction along water diminishes successively.
Water directly enters the first filtering cabin 4 by pipeline 11, and in the interior storage of the first filtering cabin 4, automatically precipitate simultaneously, water level constantly rises, when water level arrives filter screen 3 position in the first holly strip, water in the first filtering cabin 4 upper stratas flows into the second filtering cabin 5 from the mesh of filter screen 3, and in the interior storage precipitation of the second filtering cabin 5, water level constantly rises, when the water level in the second filtering cabin 5 arrives filter screen 3 position in the second holly strip, the water on the second filtering cabin 5 upper stratas flows into the 3rd filtering cabin 6 from the mesh of filter screen 3.
Wherein, the area of filter screen 3 is less than or equal to half of holly strip 2 areas, the utility model is located at filter screen 3 on the top of holly strip 2, when water enters after each filtering cabin, the materials such as butter, coal ash and sandstone can be deposited in to filtering cabin bottom automatically, comparatively clean water can be from the interior inflow of the filter screen 3 subordinate filtering cabin on top, if filter screen 3 areas are excessive, the material that sinks to bottom is easy to flow into subordinate's filtering cabin, does not reach good filter effect.
Described filter screen 3 is blade inserting filter screen, and the filter screen of blade inserting can take off filter screen 3 to change or clean at any time, avoids the mesh of filter screen 3 to stop up, and affects mining work and filter effect.
Wherein, the water inlet 7 of described sedimentation and filtration case 1 and water delivering orifice 8 are opened in middle part or the bottom of casing.Water inlet 7 is arranged on the middle and lower part of casing, is conducive to like this precipitation of water, makes settling velocity fast, and the reason that water delivering orifice 8 is arranged on middle and lower part is in the drainage pipeline 11 of sunk type, is more conducive to water yield discharge, improves mining efficiency.
3 filtering cabins are respectively the first filtering cabin 4, the second filtering cabin 5 and the 3rd filtering cabin 6, the volume of described the first filtering cabin 4 is to account for half of sedimentation and filtration case 1 volume, the second filtering cabin 5 equates with the volume of the 3rd filtering cabin 6, all accounts for 1/4th of sedimentation and filtration case 1 volume.
Design filtering cabin volume from big to small, first filtering of large deal, less deal filtered, and is conducive to improve filter effect, guarantees not contain the material that destroys water meter in the water of output.
Described sedimentation and filtration case 1 is provided with a gland bonnet 9, and described escape pipe 15 is located on described gland bonnet 9, is equipped with an operation valve 10 on described escape pipe 15.Described escape pipe 15 is directly delivered to the gas entering in sedimentation and filtration case 1 in the pipeline 11 at metering water meter 16 rears.
Because gas floats on casing top, first the gas containing in water be delivered to the rear of metering water meter 16 after entering sedimentation and filtration case 1 by escape pipe 15, avoided like this gas, as methane, mix in water after metering water meter 16, cause the inaccurate problem of metering water meter 16 measuring accuracy.
The inner ring of described gland bonnet 9 is provided with sealing cavernous body 12, and sedimentation and filtration case 1 is provided with the bulge-structure 13 of corresponding described sealing cavernous body 12.On described gland bonnet 9 or in addition, one seal snap close 14.Bulge-structure 13 is tightly connected with sealing cavernous body 12, guarantees that gas can not leak, and sealing snap close 14 is in order to guarantee better sealing.
The utility model coal bed gas extraction water consumption measuring apparatus is provided with sedimentation and filtration case 1 on the drainage pipeline 11 of sunk type, can be by contaminant filters such as the butter in water, coal ash and sandstones, and a small amount of gas in elimination water, avoid butter, coal ash, sandstone and gas after water meter, to damage water meter, guarantee that water meter normally works, and measuring accuracy is high.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description to do; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present utility model.
Claims (9)
1. a coal bed gas extraction water consumption measuring apparatus, it is characterized in that, comprise: one is located at the sedimentation and filtration case in metering water meter the place ahead, in sedimentation and filtration case, be provided with at least 3 filtering cabins, between described filtering cabin, be provided with holly strip, the upper end of described holly strip is equipped with filter screen, the mesh size of each filter screen is that the flow direction along water diminishes successively, on described sedimentation and filtration case, be also connected with an escape pipe, described escape pipe is directly delivered to the gas entering in sedimentation and filtration case in the pipeline at metering water meter rear.
2. coal bed gas extraction water consumption measuring apparatus according to claim 1, is characterized in that, the area of described filter screen is less than or equal to half of holly strip area.
3. coal bed gas extraction water consumption measuring apparatus according to claim 1, is characterized in that, described filter screen is blade inserting filter screen.
4. coal bed gas extraction water consumption measuring apparatus according to claim 1, it is characterized in that, 3 filtering cabins are respectively the first filtering cabin, the second filtering cabin and the 3rd filtering cabin, the volume of described the first filtering cabin is to account for half of sedimentation and filtration case volume, the second filtering cabin equates with the volume of the 3rd filtering cabin, all accounts for 1/4th of sedimentation and filtration case volume.
5. coal bed gas extraction water consumption measuring apparatus according to claim 1, is characterized in that, the water inlet of described sedimentation and filtration case and water delivering orifice are opened in middle part or the bottom of casing.
6. coal bed gas extraction water consumption measuring apparatus according to claim 1, is characterized in that, described sedimentation and filtration case is provided with a gland bonnet, and described escape pipe is located on described gland bonnet.
7. coal bed gas extraction water consumption measuring apparatus according to claim 6, is characterized in that, the inner ring of described gland bonnet is provided with sealing cavernous body, and sedimentation and filtration case is provided with the bulge-structure of corresponding described sealing cavernous body.
8. coal bed gas extraction water consumption measuring apparatus according to claim 6, is characterized in that, is equipped with an operation valve on described escape pipe.
9. coal bed gas extraction water consumption measuring apparatus according to claim 6, is characterized in that, on described gland bonnet or in addition, one seals snap close.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700590.XU CN203587159U (en) | 2013-11-08 | 2013-11-08 | Coal-bed gas drainage and exploitation water quantity metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320700590.XU CN203587159U (en) | 2013-11-08 | 2013-11-08 | Coal-bed gas drainage and exploitation water quantity metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203587159U true CN203587159U (en) | 2014-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320700590.XU Expired - Fee Related CN203587159U (en) | 2013-11-08 | 2013-11-08 | Coal-bed gas drainage and exploitation water quantity metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203587159U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481500A (en) * | 2014-09-24 | 2015-04-01 | 杭州邦维流体技术有限公司 | Coal bed gas mining drainage liquid metering device and utilization method thereof |
| CN108240184A (en) * | 2016-12-27 | 2018-07-03 | 北京九尊能源技术股份有限公司 | Coal bed gas well reacting cycle pumping and washing process and device |
| CN111121886A (en) * | 2020-01-19 | 2020-05-08 | 天津市旭永诚科技有限公司 | A vortex flowmeter with impurity removal |
-
2013
- 2013-11-08 CN CN201320700590.XU patent/CN203587159U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104481500A (en) * | 2014-09-24 | 2015-04-01 | 杭州邦维流体技术有限公司 | Coal bed gas mining drainage liquid metering device and utilization method thereof |
| CN108240184A (en) * | 2016-12-27 | 2018-07-03 | 北京九尊能源技术股份有限公司 | Coal bed gas well reacting cycle pumping and washing process and device |
| CN111121886A (en) * | 2020-01-19 | 2020-05-08 | 天津市旭永诚科技有限公司 | A vortex flowmeter with impurity removal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cang Wei Inventor after: Guo Hui Inventor after: Shi Yubin Inventor before: Cang Wei Inventor before: Shi Yubin |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZANG WEI SHI YUBIN TO: ZANG WEI GUO HUI SHI YUBIN |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140507 Termination date: 20201108 |