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CN-224229485-U - Petroleum transportation pipeline connecting piece

CN224229485UCN 224229485 UCN224229485 UCN 224229485UCN-224229485-U

Abstract

The utility model relates to the technical field of petroleum transportation, in particular to a petroleum transportation pipeline connecting piece, which comprises a main pipeline, two groups of auxiliary pipelines, two groups of sealing rings, lifting plates, threaded rods and rotating pipes, wherein the two ends of the main pipeline are respectively connected with the auxiliary pipelines, the lifting plates are arranged in the main pipeline, one end of each threaded rod is fixed on each lifting plate, the other end of each threaded rod penetrates through the main pipeline, the two sealing rings are coaxially arranged in the main pipeline, the end parts of the two groups of petroleum pipelines enter the main pipeline through the auxiliary pipelines, the sealing rings can be sleeved on the petroleum pipelines, and the lifting plates can be driven by the rotating pipes to compress the sealing rings on the outer walls of the petroleum pipelines. Can compress tightly on petroleum pipeline with the sealing washer of cover on petroleum pipeline outer wall through the rotation pipe on the trunk line, when avoiding this petroleum transportation pipeline connecting piece to use for a long time, the sealing washer is easy from the landing on the petroleum pipeline outer wall to reinforcing pipeline connecting piece's leakproofness.

Inventors

  • LI PENG

Assignees

  • 浙江自贸区坤达石化有限公司

Dates

Publication Date
20260512
Application Date
20250701

Claims (8)

  1. 1. The utility model provides a petroleum transportation pipeline connecting piece, its characterized in that, including trunk line (1), two sets of auxiliary pipeline (2), two sets of sealing washer (3), lifter plate (4), threaded rod (5) and rotation pipe (6), auxiliary pipeline (2) are connected respectively at trunk line (1) both ends, lifter plate (4) set up in trunk line (1), threaded rod (5) one end is fixed on lifter plate (4) and the other end runs through trunk line (1), two sealing washer (3) coaxial arrangement is in trunk line (1), the tip of two sets of petroleum pipelines is passed through auxiliary pipeline (2) enter into in trunk line (1), sealing washer (3) can overlap on petroleum pipeline, rotate rotation pipe (6) can drive lifter plate (4) compress tightly sealing washer (3) at petroleum pipeline outer wall.
  2. 2. The petroleum transportation pipeline connecting piece according to claim 1, wherein the main pipeline (1) is divided into an upper half pipe (10) and a lower half pipe (11) along an axis, one side of the upper half pipe (10) is hinged with one side of the lower half pipe (11) through a hinge, the other side of the upper half pipe is connected with the other side of the lower half pipe through a bolt, grooves (200) are respectively formed in the outer walls of the two groups of auxiliary pipelines (2), and edges at two ends of the main pipeline (1) can be respectively pressed into the grooves (200).
  3. 3. A petroleum transportation pipeline connection according to claim 2, wherein a through hole is arranged on the upper half pipe (10), a sealing bearing is arranged in the through hole, the rotating pipe (6) is limited to rotate in the sealing bearing, and a rotating wheel (60) is fixed at one end of the rotating pipe (6) extending out of the upper half pipe (10).
  4. 4. A connection for petroleum transportation pipes according to claim 2, characterised in that the contact surface of said upper half pipe (10) and lower half pipe (11) is provided with a gasket.
  5. 5. A petroleum transportation pipeline connecting piece according to claim 2, wherein sealing gaskets are arranged on the contact surfaces of the edge openings at two ends of the main pipeline (1) and the grooves (200) on the auxiliary pipeline (2).
  6. 6. The petroleum transportation pipeline connecting piece according to claim 2, wherein the auxiliary pipeline (2) comprises a pipeline body (20), an adjusting cap (21) and a plurality of compression blocks (22), the groove (200) is formed in the outer wall of the pipeline body (20), an expanding end (201) is arranged at one end, far away from the main pipeline (1), of the pipeline body (20), a thread section (202) is arranged on the outer wall of the expanding end (201), a plurality of sliding grooves (203) are uniformly formed in the edge surface of the expanding end (201), the compression blocks (22) are limited to move in the sliding grooves (203), the adjusting cap (21) is communicated back and forth, the adjusting cap (21) is meshed with the thread section (202), and the adjusting cap (21) is rotated to move along the direction away from the main pipeline (1) so that a plurality of compression blocks (22) can be gradually compressed on the outer wall of the petroleum pipeline.
  7. 7. The petroleum transportation pipeline connecting piece according to claim 6, wherein the adjusting cap (21) is of a round table-shaped structure penetrating through the front and back, and the adjusting cap (21) can drive the plurality of compressing blocks (22) to be close to each other by moving along the direction away from the main pipeline (1).
  8. 8. A petroleum transportation pipeline connecting piece according to claim 6, characterized in that a plurality of said pressing blocks (22) are detachably provided with rubber pads on the side contacting the outer wall of the petroleum pipeline.

Description

Petroleum transportation pipeline connecting piece Technical Field The utility model relates to the technical field of petroleum transportation, in particular to a petroleum transportation pipeline connecting piece. Background Petroleum is used as a national important strategic energy source, and the safety and reliability of a pipeline transportation system are important. In petroleum pipeline transportation networks, connectors serve as key nodes of the pipeline system and serve the important functions of connecting segmented pipelines and maintaining medium conveying continuity. However, the problem of insufficient connection tightness of the existing petroleum transportation pipeline connector commonly exists in practical application, so that the risk of petroleum leakage is high, and the problem becomes a core technical bottleneck for restricting the pipeline transportation safety. In the prior art, the leakage problem of the petroleum pipeline connecting piece mainly results from the structural defect that firstly, the traditional connecting piece is mostly dependent on manual alignment of pipeline interfaces, if flange connection is adopted, gaps are easily formed at the interfaces if the bolt fastening strength is uneven or the axis deviation of the pipeline exceeds 0.5mm, and when petroleum pressure in the pipeline fluctuates, media are easily oozed out of the gaps. Secondly, most of the existing connecting pieces only adopt a single sealing gasket structure, such as a common rubber sealing ring, and the oil resistance and the ageing resistance of the existing connecting pieces are insufficient, and the existing connecting pieces are easy to swell and deform after being contacted with petroleum media for a long time. Thirdly, the traditional connecting piece is like a threaded connection type pipeline joint, the scouring abrasion of petroleum media is not considered in the design of thread profile, and after long-term use, the threaded fit clearance is increased, so that connection looseness is caused. The problems cause frequent leakage accidents of the existing petroleum pipeline connecting piece in long-term operation, not only cause petroleum resource waste, but also possibly cause safety accidents such as fire explosion and the like, and simultaneously cause pollution to ecological environment. Therefore, how to improve the sealing reliability, the vibration resistance and the corrosion resistance of the petroleum pipeline connecting piece through structural innovation becomes a technical problem to be solved in the field. Disclosure of utility model To above-mentioned problem, provide a petroleum transportation pipeline connecting piece, can compress tightly the sealing washer of cover on petroleum pipeline outer wall on petroleum pipeline through the swivelling pipe on the trunk line, when avoiding this petroleum transportation pipeline connecting piece to use for a long time, the sealing washer is easy from the landing on the petroleum pipeline outer wall to increase the leakproofness to petroleum pipeline connection, solved traditional pipeline connecting piece and led to the problem that the oil was revealed easily. In order to solve the problems in the prior art, the application provides a petroleum transportation pipeline connecting piece, which comprises a main pipeline, two groups of auxiliary pipelines, two groups of sealing rings, lifting plates, threaded rods and rotating pipes, wherein the two ends of the main pipeline are respectively connected with the auxiliary pipelines, the lifting plates are arranged in the main pipeline, one end of each threaded rod is fixed on each lifting plate, the other end of each threaded rod penetrates through the main pipeline, the two sealing rings are coaxially arranged in the main pipeline, the end parts of the two groups of petroleum pipelines enter the main pipeline through the auxiliary pipelines, the sealing rings can be sleeved on the petroleum pipelines, and the rotating pipes can drive the lifting plates to compress the sealing rings on the outer walls of the petroleum pipelines. Preferably, the main pipeline is divided into an upper half pipe and a lower half pipe along the axis, the upper half pipe is hinged with one side of the lower half pipe through a hinge, the other side of the lower half pipe is connected with the main pipe through a bolt, two groups of auxiliary pipeline outer walls are respectively provided with a groove, and edges at two ends of the main pipeline can be respectively pressed into the grooves. Preferably, a through hole is formed in the upper end half pipe, a sealing bearing is arranged in the through hole, the rotating pipe is limited to rotate in the sealing bearing, and a rotating wheel is fixed at one end, extending out of the upper end half pipe, of the rotating pipe. Preferably, a sealing gasket is arranged on the contact surface of the upper half pipe and the lower half pipe. Preferably, sealing gaskets are