CN220815616U - Deep coal bed gas wellhead production solid particle capturing device - Google Patents
Deep coal bed gas wellhead production solid particle capturing device Download PDFInfo
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- CN220815616U CN220815616U CN202322794540.9U CN202322794540U CN220815616U CN 220815616 U CN220815616 U CN 220815616U CN 202322794540 U CN202322794540 U CN 202322794540U CN 220815616 U CN220815616 U CN 220815616U
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- solid particle
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- 239000007787 solid Substances 0.000 title claims abstract description 50
- 239000002245 particle Substances 0.000 title claims abstract description 47
- 239000003245 coal Substances 0.000 title claims abstract description 16
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 239000004576 sand Substances 0.000 claims abstract description 60
- 238000007599 discharging Methods 0.000 claims abstract description 34
- 230000007704 transition Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000005245 sintering Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 6
- 239000007788 liquid Substances 0.000 claims description 11
- 238000011144 upstream manufacturing Methods 0.000 claims description 11
- 210000001503 joint Anatomy 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims 12
- 238000001914 filtration Methods 0.000 abstract description 10
- 238000004140 cleaning Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000009991 scouring Methods 0.000 abstract description 3
- 230000003670 easy-to-clean Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 46
- 239000010410 layer Substances 0.000 description 8
- 239000012530 fluid Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 230000003628 erosive effect Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 239000007790 solid phase Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The utility model provides a deep coal bed gas wellhead extract solid particle capturing device which comprises two solid particle capturing devices, wherein each solid particle capturing device comprises a filter cartridge, a filter element arranged in the filter cartridge and a sand discharging mechanism arranged at the lower part of the filter cartridge; the filter element is a metal sintering net filter element with a hollow inside, a transition pipe A which is fixedly integrated with the filter element is communicated with the upper end of the filter element, a transition pipe B which is fixedly integrated with the filter element is communicated with the lower end of the filter element, a positioning ring is sleeved on the transition pipe A, the outer diameter of the positioning ring is matched with the inner diameter of the filter element, a connecting pipe is communicated with the upper end of an inner hole of the positioning ring, and a feeding hole is formed in the side wall of the connecting pipe. The utility model comprises two sets of solid particle traps, one is used for a standby, and the operations of sand discharge, cleaning and filter element replacement can be realized without stopping; the single solid particle catcher adopts an interception filtering type sand removal mode, has good sand removal effect, is simple in sand removal operation, is easy to clean and replace in the later period, and can effectively prevent the scouring and damage of the gravel to the subsequent pipeline and equipment.
Description
Technical Field
The utility model relates to oil-gas pipeline engineering filtering and separating equipment, in particular to a device for capturing solid particles of deep coal bed gas wellhead production.
Background
The produced material of the deep coal bed gas wellhead contains a part of solid particles such as quartz sand. The solid particle capturing device is mainly used for removing solid particles in wellhead liquid, can select filter elements with different specifications according to the size of sand grain, effectively removes the solid particles in wellhead liquid, prevents the particles from entering downstream equipment such as a separator, and the like, damages the equipment and protects the downstream equipment from erosion.
The conventional solid particle catcher device is provided with a common sand remover and a rotational flow sand remover, and the common sand remover has poor effect when being applied to a deep coal bed gas wellhead. The problems that structural parts of the sand remover are relatively fast in erosion, the sand removing effect is not thorough, a filter screen is easy to damage, the design flow cannot meet the field working condition, potential safety hazards exist in sand leakage caused under the peak working condition, the sand removing operation is complex, and the replacement or maintenance is long in time consumption are solved.
The cyclone sand remover is disclosed in patent CN217813430U, which filters fluid to remove particles mainly through a filter cartridge built in the sand removing cylinder, after the fluid enters the sand removing cylinder, the fluid fully contacts with the filter cartridge under the action of a partition plate surrounding the outer wall of the filter cartridge, and solid phase particles are deposited at the lower part of the filter cartridge by virtue of centrifugal force and gravity generated by the fluid, and the filtered fluid overflows from the lower part of the filter cartridge and is discharged from the upper part of the sand removing cylinder. The cyclone sand remover has the following problems: because of the existence of the filter plate, the filter cartridge is difficult to process, the filter cartridge is easy to block, and the filter cartridge is difficult to clean.
Disclosure of Invention
Aiming at the problems of the background technology, the utility model aims to provide a deep coal bed gas wellhead extract solid particle capturing device which comprises two sets of solid particle capturing devices, wherein one solid particle capturing device is used for one set, a single solid particle capturing device adopts an interception and filtration type sand removal mode, the sand removal effect is good, the sand removal operation is simple, the later cleaning and replacement are easy, and the scouring and the damage of gravel to subsequent pipelines and equipment can be effectively prevented.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
A deep coal bed gas wellhead extract solid particle capturing device comprises two solid particle capturing devices, wherein the two solid particle capturing devices are respectively connected with an upstream liquid gas conveying pipeline outlet through corresponding first switch valves, and the other ends of the two solid particle capturing devices are respectively connected with a downstream liquid gas conveying pipeline inlet through corresponding second switch valves; the solid particle catcher comprises a filter cylinder, a filter element arranged in the filter cylinder and a sand discharging mechanism arranged at the lower part of the filter cylinder;
The filter cylinder is of a vertical straight pipe structure, the pipe orifice at the upper part of the filter cylinder is connected with a blind plate, the pipe orifice at the lower part of the filter cylinder is connected with a bottom plate, and the bottom plate is provided with a through hole; the upper part of the side wall of the filter cylinder is communicated with an inlet connecting pipe which is connected with a corresponding first switch valve; the lower part of the side wall of the filter cylinder 2 is communicated with an outlet connecting pipe which is connected with a corresponding second switch valve;
The filter element is a metal sintering net filter element with a hollow interior, the upper end of the filter element is communicated with a transition pipe A which is fixedly integrated with the filter element, the lower end of the filter element is communicated with a transition pipe B which is fixedly integrated with the filter element, a positioning ring is sleeved on the transition pipe A, the transition pipe A is communicated with an inner hole of the positioning ring, the transition pipe B is communicated with a through hole of a bottom plate, and the transition pipe B is in sealing butt joint with the through hole of the bottom plate; the positioning ring is positioned in the filter cylinder and below the inlet connecting pipe, the outer diameter of the positioning ring is matched with the inner diameter of the filter cylinder, the upper end of the inner hole of the positioning ring is communicated with the connecting pipe, and the side wall of the connecting pipe is provided with a feeding hole;
The sand discharging mechanism is communicated with the through hole of the bottom plate, and a sand discharging valve is arranged on the sand discharging mechanism.
The sand discharging mechanism comprises a joint A, a sand discharging pipe and a joint B, wherein the upper end of the joint A is communicated with a through hole of the bottom plate through a short pipe, the upper end of the sand discharging pipe is communicated with the joint A, the lower end of the sand discharging pipe is communicated with the joint B, and the sand discharging valve is arranged on the sand discharging pipe.
And a differential pressure transmitter is connected between the outlet of the upstream liquid-gas conveying pipeline and the inlet of the downstream liquid-gas conveying pipeline and is used for measuring the differential pressure between the upstream liquid-gas conveying pressure and the downstream liquid-gas conveying pressure.
The upper end of the connecting pipe is fixedly connected with the blind plate, and the lower end of the connecting pipe is fixedly connected with the inner hole of the positioning ring.
The transition pipe A is in threaded connection with an inner hole of the positioning ring.
The upper opening of the through hole of the bottom plate is provided with a step hole, and the lower end of the transition pipe B is inserted into the step hole and is in sealing butt joint with the bottom wall of the step hole.
The upper part of the side wall of the filter cylinder is also provided with a pressure relief opening which is connected with a pressure relief valve.
The utility model has the following beneficial effects: the utility model comprises two sets of solid particle traps, one is used for a standby, and the operations of sand discharge, cleaning and filter element replacement can be realized without stopping; the single solid particle catcher adopts an interception filtering type sand removal mode, has good sand removal effect, is simple in sand removal operation, is easy to clean and replace in the later period, and can effectively prevent the scouring and damage of the gravel to the subsequent pipeline and equipment.
Drawings
FIG. 1 is a schematic diagram of a pipeline according to the present utility model.
Fig. 2 is a front view of a solid particle trap.
In the figure, 1, a filter element, 2, a filter cartridge, 3, a sand discharging mechanism, 4, a blind plate, 5, a bottom plate, 6, a positioning ring, 7, an inlet connecting pipe, 8, an outlet connecting pipe, 9, a connecting pipe, 10, an upstream liquid and gas conveying pipeline, 11, a first switching valve, 12, a second switching valve, 13, a sand discharging valve, 14, a sand discharging pipe, 20, a downstream liquid and gas conveying pipeline, 21, a differential pressure transmitter, 22 and a pressure relief valve.
Detailed Description
The technical scheme of the utility model is further described in detail through the drawings and the embodiments.
As shown in fig. 1 and 2, the utility model provides a deep coal bed gas wellhead extract solid particle capturing device, which comprises two solid particle capturing devices, wherein the two solid particle capturing devices are respectively connected with an outlet of an upstream liquid-gas conveying pipeline 10 through corresponding first switch valves 11, and the other ends of the two solid particle capturing devices are respectively connected with an inlet of a downstream liquid-gas conveying pipeline 20 through corresponding second switch valves 12; the solid particle catcher comprises a filter cylinder 2, a filter element 1 arranged in the filter cylinder 2 and a sand discharging mechanism 3 arranged at the lower part of the filter cylinder 2;
The filter cylinder 2 is of a vertical straight pipe structure as a whole, the upper pipe orifice is connected with a blind plate 4, the lower pipe orifice is connected with a bottom plate 5, and the bottom plate 5 is provided with a through hole; the upper part of the side wall of the filter cylinder 2 is communicated with an inlet connecting pipe 7, and the inlet connecting pipe 7 is connected with a corresponding first switch valve 11; the lower part of the side wall of the filter cylinder 2 is communicated with an outlet connecting pipe 8, and the outlet connecting pipe 8 is connected with a corresponding second switch valve 12;
The filter element 1 is a metal sintering net filter element with a hollow interior, the upper end of the filter element 1 is communicated with a transition pipe A which is fixedly integrated with the filter element 1, the lower end of the filter element 1 is communicated with a transition pipe B which is fixedly integrated with the filter element 1, a positioning ring 6 is sleeved on the transition pipe A, the transition pipe A is communicated with an inner hole of the positioning ring 6, the transition pipe B is communicated with a through hole of a bottom plate 5, and the transition pipe B is in sealing butt joint with the through hole of the bottom plate 5; the positioning ring 6 is positioned in the filter cylinder 2 and below the inlet connecting pipe 7, the outer diameter of the positioning ring 6 is matched with the inner diameter of the filter cylinder 2, the upper end of the inner hole of the positioning ring 6 is communicated with the connecting pipe 9, and the side wall of the connecting pipe 9 is provided with a feeding hole; in one embodiment of the utility model, the main filter material of the metal sintering net filter element adopts a standard five-layer sintering net, the standard five-layer sintering net is formed by superposing five-layer stainless steel wire nets and sintering the five-layer stainless steel wire nets in vacuum, and the filter element manufactured by the metal sintering net filter element has the characteristics of strong corrosion resistance, good permeability, high strength, easiness in cleaning and back cleaning, accurate filtering precision, sanitary and clean filter material, no falling of silk screen and the like. The standard five-layer sintering net consists of a protective layer, an accuracy control layer, a dispersion layer and a plurality of reinforcing layers; the filter has extremely high mechanical strength and compressive strength, can exert uniform surface filtration performance on the filtration granularity of 2-200 mu m, can be used for continuous filtration below 200 ℃, and has simple cleaning due to the adoption of a surface layer filtration structure with excellent countercurrent cleaning effect;
the sand discharging mechanism 3 is communicated with the through hole of the bottom plate 5, and the sand discharging mechanism 3 is provided with a sand discharging valve 13.
The utility model is suitable for the liquid-gas conveying pipeline containing sand, when the liquid-gas containing gravel passes through the device from the outlet of the upstream liquid-gas conveying pipeline 10, the liquid-gas containing gravel is selected to enter the corresponding solid particle catcher by opening or closing different first switch valves 11; after entering the filter cartridge 2 through the inlet connecting pipe 7, the liquid gas enters the filter element 1 through the feeding hole on the side wall of the connecting pipe 9, the gravel is deposited in the inner cavity of the filter element through gravity sedimentation and filtration, the purified liquid gas flows into the annular cavity between the filter element 1 and the filter cartridge 2, and is discharged through the outlet connecting pipe, and the liquid gas can be normally conveyed; when more gravel is deposited in the filter element 1, the first switch valve 11 corresponding to the current solid particle catcher can be closed, the sand discharge valve 13 is opened to discharge, and meanwhile, the other first switch valve 11 is opened, so that the other solid particle catcher for standby is operated, and the continuous operation of the conveying pipeline is not influenced.
The sand discharging mechanism 3 comprises a joint A, a sand discharging pipe 14 and a joint B, wherein the upper end of the joint A is communicated with a through hole of the bottom plate 5 through a short pipe, the upper end of the sand discharging pipe 14 is communicated with the joint A, the lower end of the sand discharging pipe is communicated with the joint B, and the sand discharging valve 13 is arranged on the sand discharging pipe 14.
A differential pressure transmitter 21 is connected between the outlet of the upstream liquid-gas conveying pipeline 10 and the inlet of the downstream liquid-gas conveying pipeline 20, and is used for measuring the differential pressure between the upstream liquid-gas conveying pressure and the downstream liquid-gas conveying pressure. The state of the current solid particle catcher can be judged through the pressure difference value, when the pressure difference value is overlarge, the current solid particle catcher can be considered to be close to the full load, the standby solid particle catcher is started, and the current solid particle catcher is closed.
The upper end of the connecting pipe 9 is fixedly connected with the blind plate 4, and the lower end is fixedly connected with the inner hole of the positioning ring 6. In particular, the connecting blind plate 4 facilitates the disassembly and cleaning of the filter element 1 and the maintenance of the filter cartridge 2.
The transition pipe A is in threaded connection with an inner hole of the positioning ring 6. The filter element 1 is convenient to clean.
The upper opening of the through hole of the bottom plate 5 is provided with a step hole, and the lower end of the transition pipe B is inserted into the step hole and is in sealing butt joint with the bottom wall of the step hole. The installation and the positioning of the filter element 1 are facilitated.
The upper part of the side wall of the filter cylinder 2 is also provided with a pressure relief opening which is connected with a pressure relief valve 22. This is known in the art.
Specifically, in one embodiment of the present utility model, a differential pressure transmitter is also connected between the inlet connection pipe 7 and the outlet connection pipe 8 of each solid particle catcher, so that the working state of the single solid particle catcher can be observed more intuitively.
The utility model is not described in detail in the prior art.
Claims (7)
1. The utility model provides a deep coal bed gas wellhead extract solid particle capturing device, includes two solid particle trappers, and two solid particle trappers are respectively through corresponding first ooff valve (11) connection upstream liquid gas pipeline (10) export, and the other end of two solid particle trappers is respectively through corresponding second ooff valve (12) connection low reaches liquid gas pipeline (20) entry; the method is characterized in that: the solid particle catcher comprises a filter cylinder (2), a filter element (1) arranged in the filter cylinder (2) and a sand discharging mechanism (3) arranged at the lower part of the filter cylinder (2);
the filter cylinder (2) is of a vertical straight pipe structure as a whole, a blind plate (4) is connected to a pipe orifice at the upper part of the filter cylinder, a bottom plate (5) is connected to a pipe orifice at the lower part of the filter cylinder, and a through hole is formed in the bottom plate (5); the upper part of the side wall of the filter cylinder (2) is communicated with an inlet connecting pipe (7), and the inlet connecting pipe (7) is connected with a corresponding first switch valve (11); the lower part of the side wall of the filter cylinder (2) is communicated with an outlet connecting pipe (8), and the outlet connecting pipe (8) is connected with a second switch valve (12);
the filter element (1) is a metal sintering net filter element with a hollow interior, the upper end of the filter element (1) is communicated with a transition pipe A which is fixedly integrated with the filter element (1), the lower end of the filter element is communicated with a transition pipe B which is fixedly integrated with the filter element (1), a positioning ring (6) is sleeved on the transition pipe A, the transition pipe A is communicated with an inner hole of the positioning ring (6), the transition pipe B is communicated with a through hole of the bottom plate (5), and the transition pipe B is in sealing butt joint with the through hole of the bottom plate (5); the positioning ring (6) is positioned in the filter cylinder (2) and below the inlet connecting pipe (7), the outer diameter of the positioning ring (6) is matched with the inner diameter of the filter cylinder (2), the upper end of the inner hole of the positioning ring (6) is communicated with the connecting pipe (9), and the side wall of the connecting pipe (9) is provided with a feeding hole;
The sand discharging mechanism (3) is communicated with the through hole of the bottom plate (5), and the sand discharging mechanism (3) is provided with a sand discharging valve (13).
2. A deep coal bed methane wellhead production solid particulate capture device as claimed in claim 1 wherein: the sand discharging mechanism (3) comprises a joint A, a sand discharging pipe (14) and a joint B, wherein the upper end of the joint A is communicated with a through hole of the bottom plate (5) through a short pipe, the upper end of the sand discharging pipe (14) is communicated with the joint A, the lower end of the sand discharging pipe is communicated with the joint B, and the sand discharging valve (13) is arranged on the sand discharging pipe (14).
3. A deep coal bed methane wellhead production solid particulate capture device as claimed in claim 1 wherein: a differential pressure transmitter (21) is connected between the outlet of the upstream liquid-gas conveying pipeline (10) and the inlet of the downstream liquid-gas conveying pipeline (20) and is used for measuring the differential pressure between the upstream liquid-gas conveying pressure and the downstream liquid-gas conveying pressure.
4. A deep coal bed methane wellhead production solid particulate capture device as claimed in claim 1 wherein: the upper end of the connecting pipe (9) is fixedly connected with the blind plate (4), and the lower end of the connecting pipe is fixedly connected with the inner hole of the positioning ring (6).
5. A deep coal bed methane wellhead production solid particulate capture device as claimed in claim 1 wherein: the transition pipe A is in threaded connection with an inner hole of the positioning ring (6).
6. A deep coal bed methane wellhead production solid particulate capture device as claimed in claim 1 wherein: the upper opening of the through hole of the bottom plate (5) is provided with a step hole, and the lower end of the transition pipe B is inserted into the step hole and is in sealing butt joint with the bottom wall of the step hole.
7. A deep coal bed methane wellhead production solid particulate capture device as claimed in claim 1 wherein: the upper part of the side wall of the filter cylinder (2) is also provided with a pressure relief opening which is connected with a pressure relief valve (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322794540.9U CN220815616U (en) | 2023-10-18 | 2023-10-18 | Deep coal bed gas wellhead production solid particle capturing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322794540.9U CN220815616U (en) | 2023-10-18 | 2023-10-18 | Deep coal bed gas wellhead production solid particle capturing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220815616U true CN220815616U (en) | 2024-04-19 |
Family
ID=90701906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322794540.9U Active CN220815616U (en) | 2023-10-18 | 2023-10-18 | Deep coal bed gas wellhead production solid particle capturing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220815616U (en) |
-
2023
- 2023-10-18 CN CN202322794540.9U patent/CN220815616U/en active Active
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