CN112325012B - Anti-blocking oil delivery pipe for oil exploitation - Google Patents

Anti-blocking oil delivery pipe for oil exploitation Download PDF

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Publication number
CN112325012B
CN112325012B CN202011274469.6A CN202011274469A CN112325012B CN 112325012 B CN112325012 B CN 112325012B CN 202011274469 A CN202011274469 A CN 202011274469A CN 112325012 B CN112325012 B CN 112325012B
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CN
China
Prior art keywords
oil
fixedly connected
rod
net
pipe
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Active
Application number
CN202011274469.6A
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Chinese (zh)
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CN112325012A (en
Inventor
李昌平
张欢
宁正权
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongying Longwei Electromechanical Equipment Co ltd
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Dongying Longwei Electromechanical Equipment Co ltd
Priority date (The priority date 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 date listed.)
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Publication date
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Priority to CN202011274469.6A priority Critical patent/CN112325012B/en
Publication of CN112325012A publication Critical patent/CN112325012A/en
Application granted granted Critical
Publication of CN112325012B publication Critical patent/CN112325012B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L21/00—Joints with sleeve or socket
    • 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
    • B01D29/01—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 flat filtering elements
    • 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
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6407—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes
    • B01D29/6415—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element brushes with a rotary movement with respect to the filtering element
    • 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
    • B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
    • F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
    • F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/24—Preventing accumulation of dirt or other matter in the pipes, e.g. by traps, by strainers

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)

Abstract

The invention discloses an anti-blocking oil delivery pipe for oil exploitation, which comprises an oil delivery pipe, a connecting pipe, an anti-blocking structure, a sealing plate, a mounting ring, a separation net, a cleaning brush, a connecting rod and a supporting structure. The invention has the beneficial effects that: the utility model discloses a block in the oil, it blocks the effect to be located the collar centre of installing between two closing plates and play the effect of blockking at a distance from the net, two equal semicircular structure at a distance from the net, caking in the oil adhesion gradually can lead to separating the net when separating on the net surface and taking place to block up, the collar rotates this moment, make two be used for the separation net of separation to switch, the net that separates that takes place to block up rotates to between two closing plates, oil can continue normal transportation this moment, and simultaneously, the inboard fixedly connected with cleaning brush of closing plate, along with the rotation of collar, cleaning brush can brush the surface that separates the net, thereby stir the caking that forms in the garrulous oil, and dredge separating the net, guarantee next conversion to separating the net, guarantee the normal transportation of oil.

Description

Anti-blocking oil delivery pipe for oil exploitation
Technical Field
The invention relates to an oil conveying pipe, in particular to an anti-blocking oil conveying pipe for oil exploitation, and belongs to the technical field of oil exploitation.
Background
Petroleum is a fluid mineral buried deep in the ground. At first, oily liquid minerals produced in nature are called petroleum, combustible gas is called natural gas, and solid combustible oily minerals are called asphalt. With the intensive research on these minerals, it is recognized that they are hydrocarbon compounds in composition, and are related to each other in origin, so they are collectively called petroleum. The petroleum plays a role in national economy, is an important energy source, and has the advantages of high energy density (the combustion heat of the petroleum with equal weight is 50 percent higher than that of standard coal), convenient transportation and storage, small pollution degree to the atmosphere after combustion and the like compared with coal. Fuel oil extracted from petroleum is the main fuel for various kilns in the transportation, power station boilers, metallurgical and building material industries. Liquefied gas and pipeline gas which use petroleum as raw materials are high-quality fuels used in life of urban residents. Airplanes, tanks, naval vessels, rockets, and other spacecraft also consume large amounts of petroleum fuel.
The petroleum property is comparatively thick, and in the transportation process, if the slow volume of velocity of flow takes place to gather the caking and lead to defeated oil pipe to block up, is difficult to dredge the maintenance.
Disclosure of Invention
The present invention has been made to solve the above problems, and an object of the present invention is to provide an anti-clogging oil pipe for oil extraction, which can effectively prevent the problem of clogging of the oil pipe.
The invention achieves the aim through the following technical scheme, the anti-blocking oil delivery pipe for oil exploitation comprises a connecting pipe, two ends of the connecting pipe are respectively and fixedly connected with the oil delivery pipe, an anti-blocking structure is arranged inside the connecting pipe and comprises sealing plates, a mounting ring, a separation net, a cleaning brush and a connecting rod, the two sealing plates are fixedly connected inside the connecting pipe, the mounting ring is connected between the two sealing plates in a sliding manner and is of a circular structure, the side surface of the mounting ring is connected with the inner side of the connecting pipe in a sliding manner, the middle part of the mounting ring is fixedly connected with the two separation nets in a semicircular structure, the connecting rod is fixedly connected between the two separation nets, two ends of the connecting rod are respectively and fixedly connected with the inner side of the mounting ring, and one side close to the two sealing plates is fixedly connected with a plurality of the cleaning brushes, the cleaning brush is abutted against the surface of the separation net, and a supporting structure is arranged at the bottom side of the connecting pipe.
Preferably, in order to conveniently drive the gear ring to rotate, the internal separation net of the pipeline is cleaned, and lumps are removed, the anti-blocking structure further comprises an adjusting rod, a gear and the gear ring, the top side of the connecting pipe is rotatably connected with the adjusting rod, the bottom end of the adjusting rod is fixedly connected with the gear, one side of the mounting ring close to the adjusting rod is fixedly connected with the gear ring, and the gear is meshed with the gear ring.
Preferably, in order to increase the sealing performance between the connecting rod and the sealing plate, the anti-blocking structure further comprises a sliding rod and a spring, one end of the sealing plate is connected with the sliding rod in a sliding mode, the sliding rod is arranged in parallel with the connecting rod, and the spring is fixedly connected between the sliding rod and the sealing plate.
Preferably, in order to further promote sealing performance, conveniently fix a position the turned angle of collar simultaneously promptly, prevent that stifled structure still includes sealed the pad, the slide bar deviates from one side fixedly connected with of spring sealed pad, sealed pad contradict in the connecting rod.
Preferably, in order to play the supporting role to the connecting pipe to unsettled oil pipeline that sets up, bearing structure includes the bracing piece, the bottom side fixedly connected with four of connecting pipe the bracing piece.
Preferably, in order to adjust the support height to the connecting pipe in order to facilitate, guarantee the stability that oil pipeline erect, bearing structure still includes the spike, the bottom sliding connection of bracing piece has the spike.
Preferably, for the convenience of adjusting the supporting height of the supporting rod to adapt to different mounting surfaces, the supporting structure further comprises a bottom plate, a screw rod and a thread block, the inner part of the supporting foot is fixedly connected with the bottom plate, the middle part of the bottom plate is rotatably connected with the screw rod, the inner part of the supporting rod is fixedly connected with the thread block, and the screw rod is in threaded connection with the thread block.
The invention has the beneficial effects that: when the petroleum passes through the connecting pipe in the conveying process, the partition net is arranged in the mounting ring between the two sealing plates and can block the agglomeration in the petroleum, meanwhile, the two partition nets are of semicircular structures, when lumps in the petroleum are gradually adhered to the surfaces of the partition nets, the partition nets can be blocked finally, at the moment, the mounting ring can be rotated, so that the two separation nets for separation are switched, the separation net which is blocked rotates to a position between the two sealing plates, and the petroleum can be continuously and normally transported, meanwhile, when the blocking separation net rotates into the sealing plate, the inner side of the sealing plate is fixedly connected with a cleaning brush, the cleaning brush can brush the surface of the separation net along with the rotation of the mounting ring, thereby stirring and breaking the caking formed in the petroleum, dredging the separation net, ensuring the next conversion of the separation net and ensuring the normal transportation of the petroleum.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the connection structure of the connection pipe and the anti-blocking structure shown in FIG. 1;
FIG. 3 is an enlarged view of the part A shown in FIG. 2;
fig. 4 is a schematic structural view of the support structure shown in fig. 1.
In the figure: 1. the anti-blocking device comprises an oil conveying pipe, 2, a connecting pipe, 3, an anti-blocking structure, 31, an adjusting rod, 32, a sealing plate, 33, a gear, 34, a mounting ring, 35, a separation net, 36, a gear ring, 37, a cleaning brush, 38, a connecting rod, 39, a sliding rod, 39a, a sealing gasket, 39b, a spring, 4, a supporting structure, 41, a supporting rod, 42, a supporting foot, 43, a bottom plate, 44, a screw rod, 45 and a thread block.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-4, an anti-blocking oil delivery pipe for oil extraction includes a connection pipe 2, two ends of the connection pipe 2 are respectively and fixedly connected with an oil delivery pipe 1, an anti-blocking structure 3 is disposed inside the connection pipe 2, the anti-blocking structure 3 includes sealing plates 32, a mounting ring 34, spacer nets 35, a cleaning brush 37 and a connection rod 38, two sealing plates 32 are fixedly connected inside the connection pipe 2, the mounting ring 34 is slidably connected between the two sealing plates 32, the mounting ring 34 is in a circular structure, the side surface of the mounting ring 34 is slidably connected with the inner side of the connection pipe 2, the middle of the mounting ring 34 is fixedly connected with two spacer nets 35 in a semicircular structure, the connection rod 38 is fixedly connected between the two spacer nets 35, two ends of the connection rod 38 are respectively and fixedly connected with the inner side of the mounting ring 34, the two close sealing plates 32 are fixedly connected with a plurality of cleaning brushes 37 on one side, the cleaning brushes 37 abut against the surface of the separation net 35, and the bottom side of the connecting pipe 2 is provided with a supporting structure 4.
As a technical optimization scheme of the invention, the anti-blocking structure 3 further comprises an adjusting rod 31, a gear 33 and a gear ring 36, the adjusting rod 31 is rotatably connected to the top side of the connecting pipe 2, the gear 33 is fixedly connected to the bottom end of the adjusting rod 31, the gear ring 36 is fixedly connected to one side of the mounting ring 34 close to the adjusting rod 31, and the gear 33 is meshed with the gear ring 36.
As a technical optimization scheme of the present invention, the anti-blocking structure 3 further includes a sliding rod 39 and a spring 39b, one end of the sealing plate 32 is slidably connected with the sliding rod 39, the sliding rod 39 is parallel to the connecting rod 38, and the spring 39b is fixedly connected between the sliding rod 39 and the sealing plate 32.
As a technical optimization scheme of the present invention, the anti-blocking structure 3 further includes a sealing gasket 39a, one side of the sliding rod 39, which is away from the spring 39b, is fixedly connected with the sealing gasket 39a, and the sealing gasket 39a abuts against the connecting rod 38.
As a technical optimization scheme of the present invention, the supporting structure 4 includes supporting rods 41, and four supporting rods 41 are fixedly connected to a bottom side of the connecting pipe 2.
As a technical optimization scheme of the present invention, the supporting structure 4 further includes a supporting foot 42, and the supporting foot 42 is slidably connected to the bottom end of the supporting rod 41.
As a technical optimization scheme of the present invention, the supporting structure 4 further includes a bottom plate 43, a screw 44 and a thread block 45, the bottom plate 43 is fixedly connected inside the supporting foot 42, the screw 44 is rotatably connected to the middle of the bottom plate 43, the thread block 45 is fixedly connected inside the supporting rod 41, and the screw 44 is in threaded connection with the thread block 45.
When the oil conveying device is used, when oil passes through the connecting pipe 2 in the conveying process, the middle part of the mounting ring 34 positioned between the two sealing plates 32 is provided with the separation net 35, the separation net 35 can block lumps in the oil, meanwhile, the two separation nets 35 are provided, the two separation nets 35 are both in a semicircular structure, when the lumps in the oil are gradually adhered to the surface of the separation net 35, the separation net 35 can be blocked finally, at the moment, the gear 33 arranged at the bottom end of the adjusting rod 31 can drive the gear ring 36 to rotate by rotating the adjusting rod 31, so that the mounting ring 34 rotates, the two separation nets 35 for blocking are switched, the separation net 35 which is blocked rotates to a position between the two sealing plates 32, at the moment, the oil can be normally conveyed continuously, and when the blocking separation net 35 rotates to the inside of the sealing plates 32, the cleaning brush 37 is fixedly connected to the inner sides of the sealing plates 32, along with the rotation of the mounting ring 34, the cleaning brush 37 can brush the surface of the separation net 35, so that lumps formed in petroleum are crushed, the separation net 35 is dredged, the separation net 35 is ensured to be converted next time, normal transportation of the petroleum is ensured, meanwhile, the connecting rod 38 arranged in the middle of the mounting ring 34 can be abutted to the sealing gasket 39a at the end of the sliding rod 39, the sealing gasket 39a can be clamped with the connecting rod 38 when the connecting rod 38 rotates to be in a parallel state, the separation net 35 is conveniently positioned in a rotating state, the supporting rod 41 is arranged at the bottom side of the connecting pipe 2, for mounting surfaces with different heights, the screw 44 positioned at the bottom side of the supporting foot 42 can be rotated in the mounting process to adjust the height of the supporting rod 41, and the supporting stability of the oil conveying pipe belt is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.

Claims (4)

1. The utility model provides an prevent stifled defeated oil pipe for oil development, includes connecting pipe (2), its characterized in that: the oil conveying pipe (1) is fixedly connected to the two ends of the connecting pipe (2) respectively, an anti-blocking structure (3) is arranged inside the connecting pipe (2), the anti-blocking structure (3) comprises an adjusting rod (31), sealing plates (32), a gear (33), mounting rings (34), a spacer net (35), a gear ring (36), a cleaning brush (37), a connecting rod (38), a sliding rod (39), a sealing gasket (39a) and a spring (39b), the two sealing plates (32) are fixedly connected to the inside of the connecting pipe (2), the mounting rings (34) are connected between the two sealing plates (32) in a sliding manner, the mounting rings (34) are of a circular structure, the side surfaces of the mounting rings (34) are connected with the inner side of the connecting pipe (2) in a sliding manner, the two spacer nets (35) which are of a semicircular structure are fixedly connected to the middle of the mounting rings (34), the connecting rod (38) is fixedly connected between the two separation nets (35), two ends of the connecting rod (38) are respectively fixedly connected with the inner sides of the mounting rings (34), one side of each of the two adjacent sealing plates (32) is fixedly connected with a plurality of cleaning brushes (37), the cleaning brushes (37) are abutted against the surfaces of the separation nets (35), the bottom side of the connecting pipe (2) is provided with a supporting structure (4), the bottom end of the adjusting rod (31) is fixedly connected with the gear (33), one side of each of the mounting rings (34) and the corresponding adjusting rod (31) is fixedly connected with the gear ring (36), the gear (33) is meshed with the gear ring (36), one end of each of the sealing plates (32) is slidably connected with the sliding rod (39), the sliding rod (39) is parallel to the connecting rod (38), and the spring (39b) is fixedly connected between the sliding rod (39) and the sealing plates (32), slide bar (39) deviate from one side fixedly connected with of spring (39b) sealed pad (39a), sealed pad (39a) contradict in connecting rod (38).
2. The anti-clogging oil conveying pipe for oil extraction according to claim 1, characterized in that: the supporting structure (4) comprises supporting rods (41), and four supporting rods (41) are fixedly connected to the bottom side of the connecting pipe (2).
3. The anti-clogging oil delivery pipe for oil exploitation according to claim 2, wherein: the support structure (4) further comprises a supporting foot (42), and the bottom end of the supporting rod (41) is connected with the supporting foot (42) in a sliding mode.
4. The anti-clogging oil conveying pipe for oil extraction according to claim 3, characterized in that: bearing structure (4) still include bottom plate (43), screw rod (44) and screw block (45), the inside fixedly connected with of spike (42) bottom plate (43), the middle part of bottom plate (43) is rotated and is connected with screw rod (44), the inside fixedly connected with of bracing piece (41) screw block (45), screw rod (44) with screw block (45) threaded connection.
CN202011274469.6A 2020-11-15 2020-11-15 Anti-blocking oil delivery pipe for oil exploitation Active CN112325012B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011274469.6A CN112325012B (en) 2020-11-15 2020-11-15 Anti-blocking oil delivery pipe for oil exploitation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011274469.6A CN112325012B (en) 2020-11-15 2020-11-15 Anti-blocking oil delivery pipe for oil exploitation

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CN112325012B true CN112325012B (en) 2022-09-16

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN208406226U (en) * 2018-05-10 2019-01-22 武穴奥得赛化学有限公司 A kind of continuous filter unit
JP2019058846A (en) * 2017-09-25 2019-04-18 ワシノ機器株式会社 Strainer with foreign matter discharge function
CN208839119U (en) * 2018-07-17 2019-05-10 广州特粘宝粘合剂有限公司 A kind of efficient propolis processing device
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
CN210057582U (en) * 2019-05-21 2020-02-14 江苏博同环保科技有限公司 High-efficient scraper for ceramic filter
CN211176900U (en) * 2019-09-23 2020-08-04 厦门金牌厨柜股份有限公司 Integrated kitchen structure
CN211411393U (en) * 2019-12-25 2020-09-04 河北省盐山县电力管件有限公司 Oil and gas conveying pipeline with filtering function
CN211752866U (en) * 2020-03-31 2020-10-27 张启宏 Waterproof filter for underground petroleum pipeline

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2019058846A (en) * 2017-09-25 2019-04-18 ワシノ機器株式会社 Strainer with foreign matter discharge function
CN208406226U (en) * 2018-05-10 2019-01-22 武穴奥得赛化学有限公司 A kind of continuous filter unit
CN208839119U (en) * 2018-07-17 2019-05-10 广州特粘宝粘合剂有限公司 A kind of efficient propolis processing device
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
CN210057582U (en) * 2019-05-21 2020-02-14 江苏博同环保科技有限公司 High-efficient scraper for ceramic filter
CN211176900U (en) * 2019-09-23 2020-08-04 厦门金牌厨柜股份有限公司 Integrated kitchen structure
CN211411393U (en) * 2019-12-25 2020-09-04 河北省盐山县电力管件有限公司 Oil and gas conveying pipeline with filtering function
CN211752866U (en) * 2020-03-31 2020-10-27 张启宏 Waterproof filter for underground petroleum pipeline

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Effective date of registration: 20220825

Address after: 257000 Room 201, No. 69, Huaihe Road, Dongying District, Dongying City, Shandong Province

Applicant after: Dongying Longwei Electromechanical Equipment Co.,Ltd.

Address before: 415900 gezhao electromechanical Co., Ltd., middle section of Jinniu Road, Taizimiao Town, Hanshou County, Changde City, Hunan Province

Applicant before: Li Changping

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PE01 Entry into force of the registration of the contract for pledge of patent right
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Denomination of invention: An anti clogging oil pipeline for oil extraction

Effective date of registration: 20230426

Granted publication date: 20220916

Pledgee: Dongying Bank Co.,Ltd.

Pledgor: Dongying Longwei Electromechanical Equipment Co.,Ltd.

Registration number: Y2023980039270