CN111729383B - Water injection automatic filtration backwash device - Google Patents
Water injection automatic filtration backwash device Download PDFInfo
- Publication number
- CN111729383B CN111729383B CN202010566272.3A CN202010566272A CN111729383B CN 111729383 B CN111729383 B CN 111729383B CN 202010566272 A CN202010566272 A CN 202010566272A CN 111729383 B CN111729383 B CN 111729383B
- Authority
- CN
- China
- Prior art keywords
- piston
- sealing ring
- backwashing
- pipe
- filtering
- 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.)
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Links
- 238000001914 filtration Methods 0.000 title claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 30
- 238000002347 injection Methods 0.000 title claims abstract description 24
- 239000007924 injection Substances 0.000 title claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 82
- 238000011001 backwashing Methods 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000605 extraction Methods 0.000 abstract description 2
- 238000005406 washing Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000002332 oil field water Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/11—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
- B01D29/31—Self-supporting filtering elements
- B01D29/33—Self-supporting filtering elements arranged for inward flow filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/606—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by pressure measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/62—Regenerating the filter material in the filter
- B01D29/66—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
- B01D29/665—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps by using pistons
Abstract
An automatic water injection filtering backwashing device. Relates to the technical field of oil extraction. One side of the shell is connected with a water outlet pipe through a clamp, the inner end surface of the shell is connected with a filter cartridge in a sealing way, and the other side of the filter cartridge is connected with the clamp in a sealing way; the upper part and the lower part of the shell are communicated with the bypass cavity pipe, the inner hole of the bypass pipe at the upper part is in clearance fit connection with the backwashing piston, the upper part of the backwashing piston is provided with a spring, the bypass pipe at the lower part is in clearance fit connection with the filtering piston, and the lower part of the filtering piston is provided with a spring. The invention has the following beneficial effects: through setting up the backwash piston and filtering the piston, utilize the inside and outside differential pressure change of cartridge filter, reach automatic backwash's purpose, the quality of water index of guaranteeing the injected liquid has, need not manual operation, the incessant characteristics of injection process, through setting up the liquid that the net gasket filtered communicating pipe flowed in, prevent that debris from getting into the piston chamber and causing the piston to remove the jamming, through setting up the adjusting screw, the pretension degree of adjusting the spring changes the pressure differential numerical value about the piston, adaptable different water injection pressure requirements.
Description
The technical field is as follows:
the invention relates to the technical field of oil extraction, in particular to an automatic water injection filtering backwashing device.
Background art:
the oil field water injection well is equipped with the well head filter at the well head, as last one quality of water guarantee measure before the injection, the well head filter need open the washing cartridge filter promptly in order to prevent that the cartridge filter from blockking up, guarantee the quality of water index of injected water simultaneously filtering a period, need the artifical pressure variation who patrols and monitors the well head filter, has artificial factor to lead to water injection quality of water to obtain not guaranteed, the washing amount of labour is big, the water injection is interrupted the scheduling problem.
The invention content is as follows:
in order to solve the problems, the invention provides a water injection automatic filtration backwashing device.
The technical scheme of the invention is as follows: an automatic water injection filtering backwashing device comprises a shell, wherein one side of the shell is connected with a water outlet pipe through a hoop, the end surface of the other side of the shell is connected with a filter cartridge in a sealing way, and the other side of the filter cartridge is connected with the hoop in a sealing way;
the upper part and the lower part of the shell are respectively communicated with a bypass pipe, the inner hole of the bypass pipe at the upper part is in clearance fit connection with a backwashing piston, and the upper part of the backwashing piston is provided with a spring;
the lower part of the backwashing piston is provided with a central hole, the middle part of the backwashing piston is transversely provided with a side hole, the side hole is communicated with the central hole, the outer cylindrical surface of the backwashing piston outside the side hole is provided with an annular groove, and the backwashing piston is provided with three sealing rings: a sealing ring B and a sealing ring C are respectively arranged above and below the ring groove, a sealing ring A is arranged on the upper portion of the sealing ring B, and the distance between the sealing ring A and the sealing ring B is equal to the distance between the sealing ring B and the sealing ring C;
the inside of the bypass pipe at the lower part is in clearance fit connection with the filtering piston, and the lower part of the filtering piston is provided with a spring;
the upper part of the filtering piston is provided with a central hole, the middle part of the filtering piston is transversely provided with a side hole, the side hole is communicated with the central hole, the outer cylindrical surface of the filtering piston outside the side hole is provided with a ring groove, and the process piston is provided with three sealing rings: a sealing ring B and a sealing ring C are respectively arranged above and below the ring groove, a sealing ring A is arranged on the upper portion of the sealing ring B, and the distance between the sealing ring A and the sealing ring B is equal to the distance between the sealing ring B and the sealing ring C;
a backwashing water discharge pipe is arranged on one side of the upper bypass pipe and communicated with the upper bypass pipe at a position between a sealing ring A and a sealing ring B of the backwashing piston, a water inlet pipe is arranged on one side of the lower bypass pipe and communicated with the lower bypass pipe at a position between the sealing ring B and the sealing ring B of the filtering piston;
the top of the upper by-pass pipe is communicated with a communicating pipe, the communicating pipe is communicated with the shell, and the communicating pipe is communicated with the bottom of the lower by-pass pipe.
The backwashing piston is characterized in that a spring is arranged on the upper portion of the backwashing piston, a grid gasket is arranged between the upper portion of the spring and the top plane of the bypass pipe, a spring is arranged on the lower portion of the filtering piston, and a grid gasket is arranged between the lower portion of the spring and the bottom plane of the bypass pipe.
The bottom of the lower bypass pipe is provided with a threaded hole in threaded sealing connection with an adjusting bolt, and the top of the upper bypass pipe is provided with a threaded hole in threaded sealing connection with an adjusting bolt.
The invention has the following beneficial effects: through setting up the backwash piston and filtering the piston, utilize the inside and outside pressure differential change of cartridge filter (the cartridge filter has the trend of jam), reach automatic backwash's purpose, the quality of water index of guaranteeing the injection liquid has, need not manual operation, the incessant characteristics of injection process, through setting up the liquid that the net gasket filtered communicating pipe flowed in, prevent that debris from getting into the piston chamber and causing the piston to remove the jamming, through setting up the adjusting screw, the pretension of adjusting spring, change the pressure differential numerical value about the piston, adaptable different water injection pressure requirements.
Description of the drawings:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the backwash state structure of the present invention.
In the figure, 1-shell, 2-filter cylinder, 3-clamp, 4-water outlet pipe, 5-spring, 6-sealing cover, 7-adjusting bolt, 8-sealing ring A, 9-backwashing piston, 10-ring groove, 11-center hole, 12-water inlet pipe, 13-grid gasket, 14-backwashing drain pipe, 15-bypass pipe, 16-communicating pipe, 17-filter piston, 18-side hole, 19-sealing ring B, 20-sealing ring C.
The specific implementation mode is as follows:
the invention will be further described with reference to the accompanying drawings in which:
as shown in the joint of figure 1 and figure 2, the water injection automatic filtering backwashing device comprises a shell 1, wherein one side of the shell 1 is connected with a water outlet pipe 4 through a hoop 3, the end surface of the other side of the shell 1 is connected with a filter cartridge 2 in a sealing way, and the other side of the filter cartridge 2 is connected with the hoop 3 in a sealing way;
the upper part and the lower part of the shell 1 are respectively communicated with a by-pass pipe 15, the inner hole of the by-pass pipe 15 at the upper part is in clearance fit connection with a backwashing piston 9, and the upper part of the backwashing piston 9 is provided with a spring 5;
the lower part of the backwashing piston 9 is provided with a central hole 11, the middle part of the backwashing piston 9 is transversely provided with a side hole 18, the side hole 18 is communicated with the central hole 11, the outer cylindrical surface of the backwashing piston 9 outside the side hole 18 is provided with an annular groove 10, and the backwashing piston 9 is provided with three sealing rings: the upper part and the lower part of the ring groove 10 are respectively provided with a sealing ring B19 and a sealing ring C20, the upper part of a sealing ring B19 is provided with a sealing ring A8, and the distance between the sealing ring A8 and the sealing ring B19 is equal to the distance between a sealing ring B19 and a sealing ring C20;
the inside of the bypass pipe 15 at the lower part is in clearance fit connection with a filtering piston 17, and the lower part of the filtering piston 17 is provided with a spring 5;
filter piston 17 upper portion and open there is centre bore 11, and filter piston 17 middle part transversely opens has limit hole 18, and limit hole 18 and centre bore 11 intercommunication open on the outer cylindrical surface of filter piston 17 of limit hole 18 outside has annular 10, filters and is equipped with three sealing washers altogether on the piston 17: the upper part and the lower part of the ring groove 10 are respectively provided with a sealing ring B19 and a sealing ring C20, the upper part of a sealing ring B19 is provided with a sealing ring A8, and the distance between the sealing ring A8 and the sealing ring B19 is equal to the distance between a sealing ring B19 and a sealing ring C20;
the position between the sealing ring A8 and the sealing ring B19 of the backwashing piston 9, a backwashing drain pipe 14 is arranged on one side of the bypass pipe 15 at the upper part and communicated with the bypass pipe 15 at the upper part, the filtering active drain pipe 14 is communicated, liquid in the filter cylinder 2 flows out from the inside of the filter cylinder 2 to drive a sundries flow channel attached to the surface of the filter cylinder 2 to drain the backwashing drain pipe 14, the external pressure of the filter cylinder 2 disappears along with the stop of the injection pressure, the backwashing piston 9 descends under the action of the pressure in the filter cylinder 2 and the spring 5, the filter piston 17 ascends to restore the filtering state, and the backwashing process is caused by the increase of the pressure difference and the increase of the elasticity of the spring 5, so the backwashing process is in a pulse form, and the injection process can be regarded as uninterrupted.
Through setting up the backwash piston and filtering the piston, utilize the inside and outside differential pressure change of cartridge filter (the cartridge filter has the trend of jam), reach the purpose of automatic backwash, have the quality of water index of guaranteeing the injected liquid, need not manual operation, characteristics that the injection process is incessant.
The backwashing piston 9 is provided with a spring 5 at the upper part, a grid gasket 13 is arranged between the upper part of the spring 5 and the top plane of the by-pass pipe 15, the filtering piston 17 is provided with the spring 5 at the lower part, the grid gasket 13 is arranged between the lower part of the spring 5 and the bottom plane of the by-pass pipe 15, and the grid gasket 13 is arranged to filter liquid flowing in the communicating pipe, so that sundries are prevented from entering a piston cavity to cause piston movement clamping stagnation.
The bottom of the bypass pipe 15 at the lower part is provided with a threaded hole which is connected with the adjusting bolt 7 in a threaded sealing way, the top of the bypass pipe 15 at the upper part is provided with a threaded hole which is connected with the adjusting bolt 7 in a threaded sealing way, the adjusting bolt is rotated to move up and down, the adjusting bolt 7 props against the grid gasket 13 to move, the pre-tightening degree of the spring 5 is adjusted, the pressure difference value between the upper part and the lower part of the piston is changed, and the water injection pressure requirement can be met.
Claims (1)
1. The utility model provides a water injection automatic filtration backwash device, includes casing (1), its characterized in that: one side of the shell (1) is connected with a water outlet pipe (4) through a hoop (3), the end surface of the other side of the shell (1) is connected with the filter cartridge (2) in a sealing way, and the other side of the filter cartridge (2) is connected with the hoop (3) in a sealing way;
the upper part and the lower part of the shell (1) are respectively communicated with a by-pass pipe (15), the inner hole of the by-pass pipe (15) at the upper part is in clearance fit connection with a backwashing piston (9), and the upper part of the backwashing piston (9) is provided with a spring (5);
the lower part of the backwashing piston (9) is provided with a central hole (11), the middle part of the backwashing piston (9) is transversely provided with a side hole (18), the side hole (18) is communicated with the central hole (11), the outer cylindrical surface of the backwashing piston (9) outside the side hole (18) is provided with an annular groove (10), and the backwashing piston (9) is provided with three sealing rings: a sealing ring B (19) and a sealing ring C (20) are respectively arranged above and below the ring groove (10), a sealing ring A (8) is arranged on the upper portion of the sealing ring B (19), and the distance between the sealing ring A (8) and the sealing ring B (19) is equal to the distance between the sealing ring B (19) and the sealing ring C (20);
the inside of a bypass pipe (15) at the lower part is in clearance fit connection with a filtering piston (17), and the lower part of the filtering piston (17) is provided with a spring (5);
filter piston (17) upper portion and open and to have centre bore (11), filter piston (17) middle part transversely opens there is side opening (18), and side opening (18) and centre bore (11) intercommunication, and it has annular (10) to open on the outside filtration piston (17) outer cylindrical surface of side opening (18), filters and is equipped with three sealing washers altogether on piston (17): a sealing ring B (19) and a sealing ring C (20) are respectively arranged above and below the ring groove (10), a sealing ring A (8) is arranged on the upper portion of the sealing ring B (19), and the distance between the sealing ring A (8) and the sealing ring B (19) is equal to the distance between the sealing ring B (19) and the sealing ring C (20);
a backwashing drainage pipe (14) is arranged on one side of a bypass pipe (15) at the upper part and communicated with the bypass pipe (15) at the upper part at a position between a sealing ring A (8) and a sealing ring B (19) of a backwashing piston (9), a water inlet pipe (12) is arranged on one side of the bypass pipe (15) at the lower part and communicated with the bypass pipe (15) at the lower part at positions of the sealing ring B (19) and a sealing ring C (20) of a filtering piston (17); the liquid in the filter cylinder (2) flows out from the inside of the filter cylinder (2) to drive a sundries flow channel backwashing drain pipe (14) attached to the surface of the filter cylinder (2) to discharge, the external pressure of the filter cylinder (2) disappears along with the stop of the injection pressure, a backwashing piston (9) descends under the action of the pressure in the filter cylinder (2) and a spring (5), the filtering piston (17) ascends to recover the filtering state, and the backwashing process is caused by the increase of the pressure difference and the increase of the elastic force of the spring (5), so the backwashing process is in a pulse form, and the injection process can be regarded as uninterrupted; by arranging the backwashing piston and the filtering piston, the purpose of automatic backwashing is achieved by utilizing the pressure difference change inside and outside the filtering cylinder (2), and the automatic backwashing filter has the characteristics of ensuring the water quality index of the injected liquid, avoiding manual operation and having uninterrupted injection process;
the top of the upper by-pass pipe (15) is communicated with a communicating pipe (16), the communicating pipe (16) is communicated with the shell (1), and the communicating pipe (16) is communicated with the bottom of the lower by-pass pipe (15);
a spring (5) is arranged at the upper part of the backwashing piston (9), a grid gasket (13) is arranged between the upper part of the spring (5) and the top plane of the bypass pipe (15), the spring (5) is arranged at the lower part of the filtering piston (17), and the grid gasket (13) is arranged between the lower part of the spring (5) and the bottom plane of the bypass pipe (15);
the bottom of the lower bypass pipe (15) is provided with a threaded hole in threaded sealing connection with the adjusting bolt (7), and the top of the upper bypass pipe (15) is provided with a threaded hole in threaded sealing connection with the adjusting bolt (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010566272.3A CN111729383B (en) | 2020-06-19 | 2020-06-19 | Water injection automatic filtration backwash device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010566272.3A CN111729383B (en) | 2020-06-19 | 2020-06-19 | Water injection automatic filtration backwash device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111729383A CN111729383A (en) | 2020-10-02 |
| CN111729383B true CN111729383B (en) | 2022-04-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010566272.3A Active CN111729383B (en) | 2020-06-19 | 2020-06-19 | Water injection automatic filtration backwash device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111729383B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113665297B (en) * | 2021-09-06 | 2023-08-22 | 广州艾科新材料股份有限公司 | Wear-resistant and skid-resistant solid bicycle tire and production process thereof |
| CN113769457B (en) * | 2021-11-11 | 2022-01-25 | 山东能晶净化科技有限公司 | Waste water recovery device for environmental protection |
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| CN1249015A (en) * | 1997-02-25 | 2000-03-29 | 国际壳牌研究有限公司 | Downhole clutch with flow ports |
| CN101637675A (en) * | 2008-12-05 | 2010-02-03 | 郑州德奥科技有限公司 | Cylindrical backwash purifying device |
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| CN109011781A (en) * | 2018-09-11 | 2018-12-18 | 大庆丹枫石油技术开发有限公司 | Pressure limiting classified filtering device can be backwashed |
| CN110671065A (en) * | 2019-11-05 | 2020-01-10 | 中石化石油工程技术服务有限公司 | Well flushing valve capable of realizing positive and negative circulation well flushing |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1307163A (en) * | 1970-07-09 | 1973-02-14 | Picard M | Liquid filter assembly |
| JPH0724222A (en) * | 1993-07-12 | 1995-01-27 | Cosmo Koki Co Ltd | Device for removing foreign matter in water pipe |
| CN1249015A (en) * | 1997-02-25 | 2000-03-29 | 国际壳牌研究有限公司 | Downhole clutch with flow ports |
| CN101637675A (en) * | 2008-12-05 | 2010-02-03 | 郑州德奥科技有限公司 | Cylindrical backwash purifying device |
| CN201510793U (en) * | 2009-09-08 | 2010-06-23 | 四川神坤装备股份有限公司 | Automatic back-washing filter |
| CN201978569U (en) * | 2011-02-23 | 2011-09-21 | 淄博市博山防爆电器厂有限公司 | Automatic back-washing liquid returning filter |
| CN202237514U (en) * | 2011-09-14 | 2012-05-30 | 上海沪庆仪表有限公司 | Wellhead backwashing on-line filter |
| CN203114242U (en) * | 2013-04-07 | 2013-08-07 | 李海波 | Pressure automatic starting valve |
| CN105396363A (en) * | 2015-12-22 | 2016-03-16 | 福州品行科技发展有限公司 | Adjustable backwash pre-filter and usage method thereof |
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| Publication number | Publication date |
|---|---|
| CN111729383A (en) | 2020-10-02 |
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Effective date of registration: 20220401 Address after: 710000 No. 11201, building 5, Zhongjian Business Plaza, Mingguang Road, economic and Technological Development Zone, Xi'an, Shaanxi Province Applicant after: XI'AN DONGFANG HONGYE TECHNOLOGY Co.,Ltd. Address before: 163000-401, unit 2, building 1016, Donghu District 10, Ranghulu District, Daqing City, Heilongjiang Province Applicant before: Xiao Yundong |
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