CN114949984B - Multi-channel combination valve for petroleum exploitation and use method thereof - Google Patents

Multi-channel combination valve for petroleum exploitation and use method thereof Download PDF

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Publication number
CN114949984B
CN114949984B CN202210526051.2A CN202210526051A CN114949984B CN 114949984 B CN114949984 B CN 114949984B CN 202210526051 A CN202210526051 A CN 202210526051A CN 114949984 B CN114949984 B CN 114949984B
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China
Prior art keywords
oil
filter frame
pipe
filter
inlet pipe
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CN114949984A (en
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李美庆
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Anhui Youbang Intelligent Equipment Co ltd
Sichuan Borunpu Petroleum Engineering Technology Co ltd
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Sichuan Borunpu Petroleum Engineering Technology Co ltd
Anhui Youbang Intelligent Equipment Co ltd
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Priority to CN202210526051.2A priority Critical patent/CN114949984B/en
Publication of CN114949984A publication Critical patent/CN114949984A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering 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
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention relates to the technical field of combination valves, in particular to an oil exploitation multi-channel combination valve which comprises a valve body, wherein an oil inlet pipe is arranged above the valve body, a water inlet pipe is arranged on the left side, a drain pipe is arranged on the lower side, an oil outlet pipe is arranged on the right side, a rotator is connected in the valve body in a rotating mode, the rotator is hollow and internally provided with a filtering frame, a switch valve is arranged in the oil inlet pipe, the oil outlet pipe, the water inlet pipe and the drain pipe, a sliding rod capable of resetting and sliding is arranged in the rotator wall, a movable electric contact is arranged on the side edge of the upper side of the sliding rod, and a fixed electric contact is also arranged in the rotator.

Description

Multi-channel combination valve for petroleum exploitation and use method thereof
Technical Field
The invention relates to the technical field of oil exploitation, in particular to an oil exploitation multi-channel combination valve and a use method thereof.
Background
Oil field exploitation refers to the action of excavating and extracting oil in a place where oil is stored, and in the process of exploiting oil, oil gas flows into the bottom of a well from a reservoir, and rises to a wellhead from the bottom of the well, and a multi-channel combination valve is generally required in the process of oil field exploitation.
The utility model provides an existing China patent, a multichannel communication valve is used in oil field opening of publication number CN202122207152.7, including casing and play oil pipe, the equal fixedly connected with play oil pipe in left and right sides and the bottom of casing, the last fixedly connected with oil feed mechanism of casing, the inside fixedly connected with adjustment mechanism of casing, oil feed mechanism includes the roof of fixed connection at the casing upper surface, the last fixedly connected with of roof advances oil pipe, the lower fixedly connected with rose box of roof, the inside fixedly connected with slide of rose box, the inside fixedly connected with first filter screen of slide, the case mouth has been seted up to the lower surface of rose box, the inside fixedly connected with second filter screen of case mouth, filter through impurity such as small-size in first filter screen and the second filter screen in to the oil and take out, and clear up it through whole dismantlement with oil feed mechanism, thereby fine solution current petroleum multichannel valve can not filter the grit in the oil and lead to the problem of valve body jam.
However, in view of the above-mentioned related art, the second filter screen is easy to block, and further to block the flow of oil, and when the oil inlet mechanism is cleaned, the operation of the multi-way valve must be stopped, so that the working efficiency is reduced.
Disclosure of Invention
(one) solving the technical problems
The invention aims to solve the problems that a filter screen in the existing multi-way valve is easy to block, further the petroleum flow is blocked, the filter screen is required to be detached for cleaning, and the working efficiency of the multi-way valve is reduced.
Technical proposal
The invention discloses a multi-channel combination valve for petroleum exploitation and a use method thereof, and aims and effects of the multi-channel combination valve are achieved by the following specific technical means: the utility model provides an oil development multichannel combination valve, including the valve body, the valve body top is equipped with into oil pipe, the left side is equipped with the inlet tube, the downside is equipped with the blow off pipe, the right side is equipped with out oil pipe, the valve body is cavity and it is cylindric in it, and the valve body internal rotation is connected with the rotator, the rotator outside pastes with the valve body inner wall mutually, be equipped with into oil pipe, go out oil pipe, inlet tube, blow off pipe corresponding opening, the rotator is cavity and is equipped with the filter frame in it, filter frame seals the opening relative with into oil pipe, advance oil pipe, go out oil pipe, inlet tube, blow off intraductal all is equipped with the ooff valve.
Further, a cavity is formed in the wall of the rotating body, a sliding rod capable of resetting and sliding is arranged in the cavity, a movable electric contact is arranged on the side edge of the upper side of the sliding rod, a fixed electric contact is further arranged in the cavity, the movable electric contact is driven to be connected with the fixed electric contact when the sliding rod slides downwards, the sliding rod penetrates through the wall of the rotating body and is fixedly connected with the filtering frame, the filtering frame is in sliding connection in the rotating body, and four sides above the filtering frame are continuously connected with the inner wall of the rotating body when the filtering frame slides.
Further, go out oil pipe and go out oil pipe from top to bottom still being equipped with respectively in oil pipe right side, go out oil pipe and go out oil pipe down and all be equipped with the ooff valve in.
Further, a filter plate is oppositely arranged in the filter frame, the lower end of the filter plate is hinged at the edge of the bottom of the filter frame, the filter plate is attached to the inner side wall of the filter frame, the upper end of the filter plate exceeds the height of the filter frame, a locking mechanism connected with the filter plate is arranged in the rotator, the filter plate is separated from the locking mechanism in the downward sliding process of the filter frame, and the filter plate is poured towards the middle.
Further, a limiting block is arranged in the filter frame, and the filter plate is contacted with the limiting block when the filter plate is toppled to the middle.
Further, the locking mechanism comprises a locking piece, a locking piece capable of sliding and resetting is arranged in the rotator, the locking piece is connected with the upper side of the filter plate, an electromagnet is further arranged in the rotator, an iron piece is arranged at the inner end of the locking piece, and the iron piece is attracted to retract inwards along with the locking piece when the electromagnet is electrified.
Further, a water blocking block is arranged in the water inlet pipe, the water blocking block is hollow, and a water blocking plate is hinged in the water blocking block through a torsion spring.
The invention also provides a use method of the petroleum exploitation multi-channel combination valve, which comprises the following steps:
s1: opening the switch valves of the oil inlet pipe and the oil outlet pipe, closing the switch valves of the water inlet pipe and the sewage pipe, allowing petroleum to flow in from the oil inlet pipe, filtering the petroleum by the filtering frame, and allowing the filtered petroleum to flow out from the oil outlet pipe;
s2: when the filter frame is blocked, the impact force to the filter frame is increased when petroleum flows through the filter frame, so that the filter frame is driven to slide downwards, the filter plate is driven to be separated from the locking block and inwards toppled over on the limiting block, and the filter frame can continue to filter;
s3: after the filter frame is plugged again, the filter frame continuously slides downwards to drive the movable electric contact to be connected with the fixed electric contact, an electric signal is transmitted to the control system, the control system controls to close the switch valves of the oil inlet pipe and the oil outlet pipe, the switch valves of the water inlet pipe and the sewage discharge pipe are opened, water in the water inlet pipe washes the filter frame, and the rotator is rotated to wash the filter frame in different directions;
s4: after the filter frame is washed, the filter frame is rotated along with the rotator until the opening is vertically downward, the electromagnet is communicated, the locking block is driven to retract, and the filter plate is locked by the locking block again.
The beneficial effects are that:
1. the invention provides a multi-channel combined valve for petroleum exploitation and a use method thereof, when a filter frame is blocked, impact force on the filter frame is increased when petroleum flows through the filter frame, so that the filter frame is driven to slide downwards, a filter plate is driven to separate from a locking block and inwards topple over a limiting block, and the filter frame can continue to filter, thereby avoiding the blocking of petroleum flow after the filter frame is blocked.
2. The invention provides a multi-channel combined valve for petroleum exploitation and a use method thereof, wherein after a filter frame is blocked again, the filter frame continuously slides downwards to drive a movable electric contact to be connected with a fixed electric contact, an electric signal is transmitted to a control system, the control system controls to close a switch valve of an oil inlet pipe and an oil outlet pipe, and opens a switch valve of a water inlet pipe and a drain pipe, and water in the water inlet pipe washes the filter frame, so that the problem of disassembling and cleaning the filter frame is avoided.
Description of the drawings:
FIG. 1 is a schematic front cross-sectional view of the entire present invention.
Fig. 2 is an enlarged schematic view of the present invention at a in fig. 1.
Fig. 3 is a schematic structural view of the swivel of the present invention.
Fig. 4 is a schematic left-hand cross-sectional view of the swivel of the invention.
Fig. 5 is an enlarged schematic view of the present invention at B in fig. 4.
Fig. 6 is a schematic front sectional view of the swivel of the present invention rotated 180 °.
Fig. 7 is a schematic structural view of a water blocking block according to the present invention.
In fig. 1-7: 1-valve body, 2-oil inlet pipe, 3-inlet pipe, 4-blow off pipe, 5-oil outlet pipe, 501-upper oil outlet pipe, 502-lower oil outlet pipe, 6-swivel, 601-opening, 7-filter frame, 701-filter plate, 702-stopper, 8-switch valve, 9-water block, 901-water block, 10-slide bar, 11-movable electric contact, 12-fixed electric contact, 13-locking block, 14-iron block and 15-electromagnet.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by those skilled in the art without making any inventive effort based on the embodiments of the present invention are within the scope of protection of the present invention.
As shown in fig. 1-7, the petroleum exploitation multi-channel combined valve comprises a valve body 1, an oil inlet pipe 2 is arranged above the valve body 1, a water inlet pipe 3 is arranged on the left side, a drain pipe 4 is arranged on the lower side, an oil outlet pipe 5 is arranged on the right side, the valve body 1 is hollow and cylindrical, the valve body 1 is rotationally connected with a rotating body 6, the rotating body 6 can be rotationally connected in the valve body 1 through a bearing, the outer side of the rotating body 6 is attached to the inner wall of the valve body 1, the rotating body 6 is driven to rotate through a motor, four openings 601 corresponding to the oil inlet pipe 2, the oil outlet pipe 5, the water inlet pipe 3 and the drain pipe 4 are arranged on the rotating body 6, the opening 601 corresponding to the oil inlet pipe 2 is sealed by the filter frame 7, the oil inlet pipe 2, the oil outlet pipe 5, the water inlet pipe 3 and the drain pipe 4 are all provided with switching valves 8, the switching valves 8 are existing devices, and the opening and closing of the pipelines are controlled through the switching valves 8.
As shown in fig. 1-2, a cavity is formed in the wall of the rotator 6, a sliding rod 10 capable of sliding in a resetting manner is arranged in the cavity, the sliding rod 10 is slidably connected in the rotator 6 through a resetting spring, a movable electric contact 11 is arranged on the side edge of the upper side of the sliding rod 10, a fixed electric contact 12 is further arranged in the cavity, when the sliding rod 10 slides downwards, the movable electric contact 11 is driven to be connected with the fixed electric contact 12, the sliding rod 10 penetrates through the wall of the rotator 6 and is fixedly connected with the filter frame 7 in a fixed connection manner such as threaded connection, the filter frame 7 is slidably connected in the rotator 6, when the filter frame 7 slides, four sides above the filter frame 7 are continuously connected with the inner wall of the rotator 6, namely, a sealing state is continuously maintained between the filter frame 7 and the rotator 6, when the filter frame 7 is blocked, petroleum flowing impact force is increased, and then the movable electric contact 11 on the sliding rod 10 is driven to be contacted with the fixed electric contact 11, and then an electric signal is transmitted to a control center, so that the blocking condition of the filter frame 7 is judged.
The oil outlet pipe 5 is further provided with an upper oil outlet pipe 501 and a lower oil outlet pipe 502, wherein the upper oil outlet pipe 501 and the lower oil outlet pipe 502 are respectively provided with a switch valve 8, and oil outlet pipes which are vertically branched are arranged, so that oil is transported to different directions. .
As shown in fig. 1-2, a filter plate 701 is relatively arranged in the filter frame 7, the lower end of the filter plate 701 is hinged at the bottom edge of the filter frame 7, and the filter plate 701 is attached to the inner wall of the filter frame 7 in an initial state, when the filter plate 701 is attached to the inner wall of the filter frame 7, impurity sand in petroleum is filtered by the filter plate 701, the upper end of the filter plate 701 exceeds the height of the filter frame 7, a locking mechanism connected with the filter plate 701 is arranged in the rotator 6, the filter plate 701 is separated from the locking mechanism in the downward sliding process of the filter frame 7, the filter plate 701 is poured to the middle, and at the moment, impurity sand in petroleum is filtered by the filter frame 7.
As shown in fig. 1, a limiting block 702 is disposed in the filter frame 7, and the filter plate 701 touches the limiting block 702 when being poured to the middle, so that the filter plate 701 is convenient to pour to the middle and then stop at a proper position through the limiting block 702.
As shown in fig. 4-5, as a specific structure and implementation mode of the locking mechanism, the locking mechanism comprises a locking piece 13, a locking piece 13 capable of sliding and resetting is arranged in a rotator 6, the locking piece 13 achieves a resetting function through a reset spring, the locking piece 13 is connected with the upper side of a filter plate 701, the filter plate 701 is prevented from toppling down to the middle in an initial state, an electromagnet 15 is further arranged in the rotator 6, an iron piece 14 is arranged at the inner end of the locking piece 13, when the electromagnet 15 is electrified, the iron piece 14 is attracted to retract into the rotator 6 together with the locking piece 13, after the rotator 6 rotates 180 degrees, an opening of a filter frame 7 is downward, the filter plate 701 is connected with the locking piece 13 due to the influence of gravity, the electromagnet 15 is started to drive the locking piece 13 to retract, the filter plate 701 is connected with the inner wall of the filter frame 7, and then the locking piece 13 is restored to lock the filter plate 701 again.
As shown in fig. 7, the water inlet pipe 3 is further provided with a water blocking block 9, the water blocking block 9 is hollow, the water blocking block 9 is hinged with a water blocking plate 901 through a torsion spring, and water flows through the water blocking plate 901 and is sprayed to the filter frame 7 from different angles by adjusting the flow rate of the water inlet pipe 3, so that the water is more comprehensively flushed.
The invention also provides a use method of the petroleum exploitation multi-channel combination valve, which comprises the following steps:
s1: opening the switch valves 8 of the oil inlet pipe 2 and the oil outlet pipe 5, closing the switch valves 8 of the water inlet pipe 3 and the sewage pipe 4, allowing petroleum to flow in from the oil inlet pipe 2, filtering the petroleum by the filtering frame 7, and allowing the filtered petroleum to flow out from the oil outlet pipe 5;
s2: when the filter frame 7 is blocked, the impact force to the filter frame 7 is increased when petroleum flows through, so that the filter frame 7 is driven to slide downwards, the filter plate 701 is driven to be separated from the locking piece 13 and inwards toppled over the limiting block 702, and the filter frame 7 can continue to filter;
s3: after the filter frame 7 is plugged again, the filter frame 7 continuously slides downwards to drive the movable electric contact 11 to be connected with the fixed electric contact 12, an electric signal is transmitted to the control system, the control system controls to close the switch valve 8 of the oil inlet pipe 2 and the oil outlet pipe 5, the switch valve 8 of the water inlet pipe 3 and the sewage discharge pipe 4 is opened, water in the water inlet pipe 3 washes the filter frame 7, and the rotating body 6 is rotated to wash the filter frame 7 in different directions;
s4: after the filter frame 7 is washed, the filter frame 7 rotates along with the rotator 6 until the opening is vertically downward, and the electromagnet 15 is communicated to drive the locking piece 13 to retract, so that the filter plate 701 is locked by the locking piece 13 again.
Working principle:
the control system is used for opening the switch valve 8 of the oil inlet pipe 2 and the oil outlet pipe 5, the switch valve 8 of the water inlet pipe 3 and the drain pipe 4 is closed, petroleum flows in from the oil inlet pipe 2 and flows through the filter frame 7, filtered petroleum flows out from the oil outlet pipe 5, when the filter frame 7 is blocked, the impact force on the filter frame 7 is increased when petroleum flows through, the filter frame 7 is driven to slide downwards, the filter plate 701 is driven to separate from the locking block 13 and inwards topple over on the limiting block 702, the filter frame 7 can continue to carry out filtering operation, the filter frame 7 can slide upwards to return a little, after the filter frame 7 is blocked again, the filter frame 7 continues to slide downwards to drive the movable electrical contact 11 to be connected with the fixed electrical contact 12, then electrical signals are transmitted to the control system, the control system controls to close the switch valve 8 of the oil inlet pipe 2 and the oil outlet pipe 5, the switch valve 8 of the water inlet pipe 3 and the drain pipe 4 is opened, the motor is started to drive the rotator to rotate 180 degrees, the filter frame 7 is driven to open, the water flow velocity of the water flow of the water inlet pipe 3 is further regulated, the water flow blocking plate 901 is driven to spray the filter frame 7 from different angles to the filter frame 7, thereby carry out more comprehensive washing on the filter frame 7, the filter frame 7 can be washed down from the electromagnet is driven to rotate the filter plate 7 again, the filter frame 7 is rotated to be more completely, the filter frame 7 is washed down to be more completely, the filter frame 13 is washed down, the filter frame is washed down and then is rotated to be more completely and completely after the filter frame 13 is washed down, and the filter frame 13 is washed is completely and completely is washed down and completely washed.

Claims (4)

1. The utility model provides an oil development multichannel combination valve, includes valve body (1), its characterized in that: the novel oil inlet valve is characterized in that an oil inlet pipe (2) is arranged above the valve body (1), a water inlet pipe (3) is arranged on the left side, a drain pipe (4) is arranged on the lower side, an oil outlet pipe (5) is arranged on the right side, the valve body (1) is hollow and cylindrical, a rotator (6) is rotationally connected in the valve body (1), the outer side of the rotator (6) is attached to the inner wall of the valve body (1), an opening (601) corresponding to the oil inlet pipe (2), the oil outlet pipe (5), the water inlet pipe (3) and the drain pipe (4) is formed in the rotator (6), a filter frame (7) is arranged in the hollow, the opening (601) corresponding to the oil inlet pipe (2) is sealed by the filter frame (7), and a switch valve (8) is arranged in the oil inlet pipe (2), the oil outlet pipe (5), the water inlet pipe (3) and the drain pipe (4);
a cavity is formed in the wall of the rotating body (6), a sliding rod (10) capable of resetting and sliding is arranged in the cavity, a movable electric contact (11) is arranged on the side edge of the upper side of the sliding rod (10), a fixed electric contact (12) is also arranged in the cavity, the movable electric contact (11) is driven to be connected with the fixed electric contact (12) when the sliding rod (10) slides downwards, the sliding rod (10) penetrates through the wall of the rotating body (6) and is fixedly connected with the filtering frame (7), the filtering frame (7) is connected in the rotating body (6) in a sliding mode, and four sides above the filtering frame (7) are continuously connected with the inner wall of the rotating body (6) when the filtering frame (7) slides;
the filter comprises a filter frame (7), wherein a filter plate (701) is relatively arranged in the filter frame (7), the lower end of the filter plate (701) is hinged at the bottom edge of the filter frame (7), the filter plate (701) is attached to the inner side wall of the filter frame (7), the upper end of the filter plate (701) exceeds the height of the filter frame (7), a locking mechanism connected with the filter plate (701) is arranged in a rotating body (6), the filter plate (701) is separated from the locking mechanism in the downward sliding process of the filter frame (7), and the filter plate (701) is poured towards the middle;
be equipped with stopper (702) in filter frame (7), filter plate (701) are toppled over to the centre and are touched mutually with stopper (702), locking mechanical system includes locking piece (13), be equipped with locking piece (13) that slidable reset in turning (6), locking piece (13) are met with filter plate (701) upside, still be equipped with electro-magnet (15) in turning (6), locking piece (13) inner is equipped with iron piece (14), attraction iron piece (14) are to turning (6) indent together with locking piece (13) when electro-magnet (15) circular telegram.
2. The oil production multi-channel combination valve of claim 1, wherein: go out oil pipe (5) right side and still be equipped with respectively from top to bottom and go out oil pipe (501) and go out oil pipe (502) down, go up and go out oil pipe (501) and go out all to be equipped with ooff valve (8) in oil pipe (502) down.
3. The oil production multi-channel combination valve of claim 1, wherein: the water inlet pipe (3) is also provided with a water blocking block (9), the water blocking block (9) is hollow, and the water blocking block (9) is hinged with a water blocking plate (901) through a torsion spring.
4. A method of using an oil production multi-channel combination valve comprising the oil production multi-channel combination valve of any one of claims 1-3, comprising the steps of:
s1: opening the switch valves (8) of the oil inlet pipe (2) and the oil outlet pipe (5), closing the switch valves (8) of the water inlet pipe (3) and the sewage pipe (4), allowing petroleum to flow in from the oil inlet pipe (2), filtering the petroleum by the filtering frame (7), and allowing the filtered petroleum to flow out from the oil outlet pipe (5);
s2: when the filter frame (7) is blocked, the impact force to the filter frame (7) is increased when petroleum flows through, so that the filter frame (7) is driven to slide downwards, the filter plate (701) is driven to be separated from the locking piece (13) and inwards topple over the limiting block (702), and the filter frame (7) can continue to filter;
s3: after the filter frame (7) is plugged again, the filter frame (7) continuously slides downwards to drive the movable electric contact (11) to be connected with the fixed electric contact (12), an electric signal is transmitted to the control system, the control system controls to close the switch valve (8) of the oil inlet pipe (2) and the oil outlet pipe (5), the switch valve (8) of the water inlet pipe (3) and the sewage discharge pipe (4) is opened, water in the water inlet pipe (3) washes the filter frame (7), and the rotating body (6) is rotated to wash the filter frame (7) in different directions;
s4: after the filter frame (7) is washed, the filter frame (7) rotates along with the rotator (6) until the opening is vertically downward, and the electromagnet (15) is communicated to drive the locking piece (13) to retract, and the filter plate (701) is locked by the locking piece (13) again.
CN202210526051.2A 2022-05-16 2022-05-16 Multi-channel combination valve for petroleum exploitation and use method thereof Active CN114949984B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210526051.2A CN114949984B (en) 2022-05-16 2022-05-16 Multi-channel combination valve for petroleum exploitation and use method thereof

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Application Number Priority Date Filing Date Title
CN202210526051.2A CN114949984B (en) 2022-05-16 2022-05-16 Multi-channel combination valve for petroleum exploitation and use method thereof

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Publication Number Publication Date
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CN114949984B true CN114949984B (en) 2024-03-08

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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339333A (en) * 1978-03-15 1982-07-13 Alfa-Laval Ab Filtration device
CN104474761A (en) * 2014-11-19 2015-04-01 鲁柏鑫 Intelligent backwashing-water filtering device and operation method thereof
CN206152457U (en) * 2016-11-13 2017-05-10 重庆科技学院 Former oil filter of automatically cleaning ball cage
CN208893771U (en) * 2018-08-16 2019-05-24 天津油立方科技有限公司 A kind of filter device for petroleum pipeline
CN110523122A (en) * 2019-09-06 2019-12-03 徐州瑞杰机械科技有限公司 A kind of press filter plate replacement structure
CN211536785U (en) * 2020-01-17 2020-09-22 武汉嘉宏和设备有限公司 Sealed filter equipment who glues
CN215211432U (en) * 2021-02-26 2021-12-17 南京林业大学 A hide drainage structures for classical ecological garden
CN215259169U (en) * 2021-07-02 2021-12-21 河北宝温管道设备制造有限公司 Hydrophobic festival with prevent blockking up function
CN215673745U (en) * 2021-09-13 2022-01-28 江苏方正石油机械有限公司 Multi-channel communicating valve for oil field exploitation
CN216136765U (en) * 2021-08-06 2022-03-29 华电福新能源有限公司华安水力发电厂 Dirt conveying device matched with automatic dirt cleaning machine at water inlet of radial flow type hydropower station

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4339333A (en) * 1978-03-15 1982-07-13 Alfa-Laval Ab Filtration device
CN104474761A (en) * 2014-11-19 2015-04-01 鲁柏鑫 Intelligent backwashing-water filtering device and operation method thereof
CN206152457U (en) * 2016-11-13 2017-05-10 重庆科技学院 Former oil filter of automatically cleaning ball cage
CN208893771U (en) * 2018-08-16 2019-05-24 天津油立方科技有限公司 A kind of filter device for petroleum pipeline
CN110523122A (en) * 2019-09-06 2019-12-03 徐州瑞杰机械科技有限公司 A kind of press filter plate replacement structure
CN211536785U (en) * 2020-01-17 2020-09-22 武汉嘉宏和设备有限公司 Sealed filter equipment who glues
CN215211432U (en) * 2021-02-26 2021-12-17 南京林业大学 A hide drainage structures for classical ecological garden
CN215259169U (en) * 2021-07-02 2021-12-21 河北宝温管道设备制造有限公司 Hydrophobic festival with prevent blockking up function
CN216136765U (en) * 2021-08-06 2022-03-29 华电福新能源有限公司华安水力发电厂 Dirt conveying device matched with automatic dirt cleaning machine at water inlet of radial flow type hydropower station
CN215673745U (en) * 2021-09-13 2022-01-28 江苏方正石油机械有限公司 Multi-channel communicating valve for oil field exploitation

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