CN211010264U

CN211010264U - Petroleum pipeline is with sealed double-joint connecting device

Info

Publication number: CN211010264U
Application number: CN201922028386.8U
Authority: CN
Inventors: 饶志聪
Original assignee: Fushun Bo Sheng Petrochemical Equipment Manufacturing Co ltd
Current assignee: Fushun Bo Sheng Petrochemical Equipment Manufacturing Co ltd
Priority date: 2019-11-22
Filing date: 2019-11-22
Publication date: 2020-07-14
Anticipated expiration: 2029-11-22

Abstract

The utility model discloses a petroleum pipeline is with sealed double-end connection device, including pipeline one and pipeline two, the one end that pipeline one is close to pipeline two is fixed with the sealing ring, the sealing ring is close to the one end of pipeline two and sets up the rim of a circle that matches with pipeline two, be fixed with the inner circle on the inner wall of pipeline two, the one end that the inner circle is close to pipeline one is fixed with the plug that is the setting of round platform shape, it is connected with a plurality of dead levers, every to rotate on the outer wall of pipeline two all be fixed with expanding spring between the outer wall of dead lever and pipeline two, threaded connection has the movable plate on the outer wall of pipeline two, the movable plate is kept away from the inside screw thread mouth of seting up with pipeline two phase matching of one end of. The utility model discloses insert two pipelines to the sealed intra-annular back, detain the limit and detain the fixed of accomplishing two pipelines in the outside of sealing ring when the removal extrusion dead lever toward inboard rotation through the movable plate, two pipelines can't remove, guarantee the firm and the leakproofness of connection.

Description

Petroleum pipeline is with sealed double-joint connecting device

Technical Field

The utility model relates to a petroleum pipeline technical field especially relates to a petroleum pipeline is with sealed double-end connection device.

Background

The petroleum pipeline is a long-distance pipeline for conveying crude oil or finished oil, mainly comprises an oil pipeline, an oil station and other auxiliary related equipment, is one of main equipment in the petroleum storage and transportation industry, and is also the most main conveying equipment for crude oil and petroleum products.

Because petroleum pipelines are long, a multi-section pipeline connection mode is needed to adapt to changes such as turning, and the stable connection between pipelines and the sealing performance of pipeline connection are problems to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem in the background art and providing a sealed double-joint connecting device for petroleum pipeline.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the sealing double-joint connecting device for the petroleum pipeline comprises a first pipeline and a second pipeline, wherein a sealing ring is fixed at one end, close to the second pipeline, of the first pipeline, a ring opening matched with the second pipeline is formed in one end, close to the second pipeline, of the sealing ring, an inner ring is fixed on the inner wall of the second pipeline, a plug arranged in a circular truncated cone shape is fixed at one end, close to the first pipeline, of the inner ring, a plurality of fixing rods are rotatably connected to the outer wall of the second pipeline, telescopic springs are fixed between the fixing rods and the outer wall of the second pipeline, a movable plate is connected to the outer wall of the second pipeline in a threaded mode, a threaded opening matched with the second pipeline is formed in one end, far away from the first pipeline, of the movable plate, and a circular truncated cone opening is.

Preferably, the seal ring is a nickel-based alloy seal ring.

Preferably, the distance between one side of the inner ring close to the plug and the end part of the plug is equal to the depth of the ring opening.

Preferably, the diameter of the plug is gradually reduced from inside to outside, and the inner diameter of the circular truncated cone port is gradually reduced from left to right.

Preferably, the distance between the inner wall of the threaded opening and the outer wall of the pipeline is equal to the thickness of the fixing rod.

Preferably, one end of each fixing rod, which is close to the first pipeline, is provided with a vertical inward buckling edge, and the length of each buckling edge is equal to the distance between the outer wall of the sealing ring and the outer wall of the first pipeline.

Compared with the prior art, this petroleum pipeline is with sealed double-joint connecting device's advantage lies in:

1. the plug is arranged in a round table shape, the diameter of the end part of the round table-shaped plug is smaller, the round table-shaped plug is convenient to insert into the first pipeline for connection, and plays a role in guiding;

2. the annular opening is arranged, the end part of the second pipeline is inserted into the annular opening to be connected with the first pipeline, the contact area between the first pipeline and the second pipeline is increased, and leakage is further avoided;

3. the movable plate is arranged, the movable plate is rotated to move on the outer wall of the pipeline II, and along with the continuous screwing of the movable plate, the extrusion fixing rod rotates towards the inner side until the buckling edge is positioned on one side, away from the pipeline II, of the sealing ring, and at the moment, the pipeline I and the pipeline II cannot move left and right, so that the connection and fixation of the pipeline I and the pipeline II are completed;

to sum up, the utility model discloses insert two pipelines to the sealed intra-annular back, detain the limit and detain the fixed of accomplishing two pipelines in the outside of sealing ring when the removal extrusion dead lever toward inboard rotation through the movable plate, two pipelines can't remove, guarantee the firm and the leakproofness of connection.

Drawings

FIG. 1 is a schematic structural view of a sealing double joint connecting device for a petroleum pipeline according to the present invention;

FIG. 2 is a side view of a sealing ring of the sealing double joint connecting device for a petroleum pipeline according to the present invention;

fig. 3 is a schematic structural diagram of the petroleum pipeline after the sealing double-joint connecting device provided by the utility model is connected.

In the figure: the pipeline comprises a first pipeline 1, a second pipeline 2, a sealing ring 3, an inner ring 4, a plug 5, a fixed rod 6, a telescopic spring 7, a movable plate 8, a circular table opening 9 and a circular ring opening 10.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the sealing double-joint connecting device for the petroleum pipeline comprises a first pipeline 1 and a second pipeline 2, wherein a sealing ring 3 is fixed at one end, close to the second pipeline 2, of the first pipeline 1, the sealing ring 3 is a nickel-based alloy sealing ring, and the nickel-based alloy has high strength and excellent oxidation and corrosion resistance and ensures the strength and corrosion resistance of the joint of the first pipeline 1 and the second pipeline 2.

One end of the sealing ring 3 close to the second pipeline 2 is provided with a ring opening 10 matched with the second pipeline 2, the distance between one side of the inner ring 4 close to the plug 5 and the end part of the plug 5 is equal to the depth of the ring opening 10, and after the plug 5 is completely inserted into the first pipeline 1, the end part of the second pipeline 2 is completely inserted into the ring opening 10 to completely fill the ring opening 10.

Be fixed with inner circle 4 on the inner wall of pipeline two 2, inner circle 4 is fixed with the plug 5 that is the setting of round platform shape near the one end of pipeline one 1, plug 5 reduces from inside to outside diameter gradually, round platform mouth 9 reduces from left to right internal diameter gradually, set up the plug 5 of round platform shape, after pipeline one 1 is connected with pipeline two 2, plug 5 is located the inboard of junction, plug 5 plays the effect of offsetting pressure, avoid the direct transmission of oil pressure that flows to pipeline one 1 and pipeline two 2's junction, guarantee the stability of junction, its tip diameter of plug 5 of round platform shape is less simultaneously be convenient for insert and connect in pipeline one 1, play the effect of a direction.

A plurality of fixed rods 6 are rotatably connected to the outer wall of the second pipeline 2, a telescopic spring 7 is fixed between each fixed rod 6 and the outer wall of the second pipeline 2, when the telescopic springs 7 are completely unfolded, the fixed rods 6 are obliquely arranged by bouncing towards the outer side, a movable plate 8 is in threaded connection with the outer wall of the second pipeline 2, a threaded opening matched with the second pipeline 2 is formed in one end, away from the first pipeline 1, of the movable plate 8, the movable plate 8 moves on the outer wall of the second pipeline 2 by rotating the movable plate 8, a circular table opening 9 is formed in one end, close to the first pipeline 1, of the movable plate 8, the circular table opening 9 is arranged to facilitate the leading-in work of the fixed rods 6, the distance between the inner wall of the threaded opening and the outer wall of the second pipeline 2 is equal to the thickness of the fixed rods 6, the movable plate 8 is guaranteed to be just contacted with the inner wall of the threaded opening when extruding the fixed rods 6 to be horizontal, the length of detaining the limit equals with the distance size between 3 outer walls of sealing ring and the pipeline 1 outer wall, along with the continuous screw in of movable plate 8, extrudees dead lever 6 toward inboard to rotate to detain the limit and lie in one side that pipeline two 2 was kept away from to sealing ring 3, and pipeline 1 and pipeline two 2 all can't remove about this moment, accomplish pipeline 1 and pipeline two 2's connection.

Further, unless otherwise specifically stated or limited, the above-described fixed connection is to be understood in a broad sense, and may be, for example, welded, glued, or integrally formed as is conventional in the art.

Now, the operation principle of the present invention is explained as follows:

when carrying out the connection between pipeline 1 and the pipeline 2, insert the plug 5 of pipeline 2 tip in pipeline 1, the tip of pipeline 2 inserts in the collar extension 10 simultaneously, after pipeline 2 is laminated with the innermost inner wall laminating of collar extension 10 completely, turn into left end screw in movable plate 8, dead lever 6 and the inner wall contact of round platform mouth 9, along with the continuous screw in of movable plate 8, the internal diameter of the round platform mouth 9 with the contact of dead lever 6 reduces gradually, extrude dead lever 6 and rotate to the buckle limit to lie in the one side that pipeline 2 was kept away from to sealing ring 3 toward the inboard, pipeline 1 and pipeline 2 all can't remove about this moment, accomplish the connection of pipeline 1 and pipeline 2.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A sealing double-joint connecting device for a petroleum pipeline comprises a pipeline I (1) and a pipeline II (2), and is characterized in that a sealing ring (3) is fixed at one end, close to the pipeline II (2), of the pipeline I (1), a ring opening (10) matched with the pipeline II (2) is formed in one end, close to the pipeline II (2), of the sealing ring (3), an inner ring (4) is fixed on the inner wall of the pipeline II (2), a plug (5) arranged in a circular truncated cone shape is fixed at one end, close to the pipeline I (1), of the inner ring (4), a plurality of fixing rods (6) are rotatably connected to the outer wall of the pipeline II (2), a telescopic spring (7) is fixed between each fixing rod (6) and the outer wall of the pipeline II (2), a moving plate (8) is in threaded connection with the outer wall of the pipeline II (2), a threaded opening matched with the pipeline II (2) is formed in one end, far away from the pipeline I (1), of the moving plate (8), a circular table opening (9) is formed in one end, close to the first pipeline (1), of the moving plate (8).

2. A sealing double joint connection for petroleum pipelines, according to claim 1, characterized in that said sealing ring (3) is a nickel-based alloy sealing ring.

3. A double sealing joint connection device for petroleum pipelines, according to claim 1, characterized in that the distance between the side of the inner ring (4) close to the plug (5) and the end of the plug (5) is equal to the depth of the ring opening (10).

4. A sealed double-joint connection device for petroleum pipelines, according to claim 1, characterized in that the diameter of the plug (5) is gradually reduced from inside to outside, and the inner diameter of the circular truncated cone opening (9) is gradually reduced from left to right.

5. The sealing double-joint connecting device for the petroleum pipeline as recited in claim 1, wherein the distance between the inner wall of the threaded port and the outer wall of the second pipeline (2) is equal to the thickness of the fixing rod (6).

6. A sealing double joint connecting device for petroleum pipelines according to claim 1, wherein one end of each fixing rod (6) close to the first pipeline (1) is provided with a vertical inward buckling edge, and the length of the buckling edge is equal to the distance between the outer wall of the sealing ring (3) and the outer wall of the first pipeline (1).