CN220647242U - Temporary plugging mechanism for petroleum conveying pipeline - Google Patents

Abstract

The utility model discloses a temporary blocking mechanism for oil transportation pipelines, which includes a bottom holding frame and an upper sealing pressure seat arranged opposite the bottom holding frame. The four corners of the top of the bottom holding frame are fixed with fastening screws. Both sides of the sealing and pressure seat are fixedly provided with holding lock frames. The surface of the holding lock frame is provided with positioning perforations. The top of the fastening screw passes through the positioning perforations and is threadedly connected with a fastening nut. There is an arc in the middle of the bottom of the upper sealing and pressure seat. type fitting groove, and a hidden groove is provided in the middle of the arc-shaped fitting groove. This utility model is a temporary blocking mechanism for oil transportation pipelines. The temporary blocking mechanism for oil transportation pipelines is simple in design and adopts the method of upper and lower holding frames to hold together. It is quickly fixed on the oil pipeline. After locking, the oil pipeline is blocked by inflating and filling the sealing air bag. It is suitable for sealing leaks of different shapes. The sealing is sufficient, the effect is significant, and oil leakage is not easy to occur. problem, the operation is simple and convenient, and the disassembly and assembly efficiency is high.

Description

Temporary plugging mechanism for petroleum conveying pipeline

Technical Field

The utility model relates to the technical field of temporary maintenance of petroleum pipelines, in particular to a temporary plugging mechanism of a petroleum conveying pipeline.

Background

Petroleum pipeline is a pipeline for conveying petroleum, and is widely applied to petroleum transportation industry due to the characteristics of large transportation capacity, good sealing performance, low cost, high safety coefficient and the like. Petroleum pipelines are mostly made of seamless steel pipes, and adjacent seamless steel pipe pipelines are connected in a sealing mode through structures such as connecting flanges. The problem that the petroleum pipeline can leak because of factors such as deformation, impact crack or pirate hole appear in long-term use, after finding that the petroleum pipeline leaks, can use the shutoff structure in the very first time, carry out temporary shutoff to leaking the position, reduce the economic loss that the petroleum leaked and cause, take the targeted repair measure again afterwards. The current common temporary plugging structure for petroleum pipelines is mainly formed by buckling a cohesion frame on the petroleum pipelines, adding a plugging rubber mat on the cohesion frame, and tightly propping the plugging rubber mat by means of threads, so that the plugging rubber mat is tightly clung to a leakage part, and the purpose of plugging is achieved, such as a temporary plugging mechanism for plugging the leak hole of the petroleum pipeline with the application number of CN 201720405572.7. However, the applicant believes that this common temporary plugging structure suffers from the following disadvantages:

because the leak hole that the petroleum pipeline leaked is irregular, and the petroleum pipeline is cylindrical, traditional plugging structure is difficult to quick abundant shutoff leaking stoppage, and the shutoff effect is poor.

Disclosure of Invention

The utility model aims to provide a temporary plugging mechanism for an oil conveying pipeline, which solves the problems that the traditional plugging structure provided in the background technology is difficult to quickly and fully plug and has poor plugging effect.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the temporary plugging mechanism for the petroleum conveying pipeline comprises a bottom holding frame and an upper sealing and pressing seat which is opposite to the bottom holding frame, wherein four corners of the top end of the bottom holding frame are fixedly provided with fastening screws, two sides of the upper sealing and pressing seat are fixedly provided with a sealing and locking frame, the surface of the sealing and locking frame is provided with positioning perforations, the top end of the fastening screw is connected with a fastening nut through the positioning perforations in a threaded manner, the middle part of the bottom end of the upper sealing and pressing seat is provided with an arc-shaped laminating groove, the middle part of the arc-shaped laminating groove is provided with a hiding groove, the inside of the hiding groove is connected with a plugging air bag in a clamping manner, the inner side of the plugging air bag is fixedly provided with a sealing rubber cushion, and the outer side of the plugging air bag is fixedly provided with an air pipe assembly; the mode of embracing from top to bottom embracing the frame is adopted, can fix on petroleum pipeline fast, after locking, relies on the air-blowing of shutoff gasbag to fill, realizes the shutoff to petroleum pipeline, is applicable to the leak hole shutoff of different shapes, and the shutoff is abundant, and the effect is showing.

Preferably, the middle part at the top end of the upper sealing pressing seat is provided with a tracheal perforation, and the top end of the tracheal assembly extends to the outside of the tracheal perforation, so that the upper sealing pressing seat is convenient to be inflated and sealed.

Preferably, the middle part of trachea subassembly fixed mounting has discharge valve, and exhaust convenient operation.

Preferably, the both ends of arc laminating groove are all fixed and are provided with the side seal and glue the ring, and holistic leakproofness is better.

Preferably, the tightening nut is fixedly provided with a screwing lug, so that convenience is brought to tightening and fixing of the tightening nut, and the disassembly and assembly are more labor-saving.

Preferably, the both sides on upper seal and press the seat top all are fixed and are provided with the handle, portable temporary plugging structure, convenient to use.

Preferably, the middle part at the top end of the bottom holding frame is arranged into an arc shape, and the inner side wall of the arc shape is fixedly provided with a rubber pad, and the rubber pad is directly contacted with a petroleum pipeline, so that the petroleum pipeline cannot be scratched, and the bottom holding frame is safer.

Compared with the prior art, the utility model has the beneficial effects that: this interim shutoff mechanism of petroleum transportation pipeline design is simple, adopts the mode of embracing from top to bottom that embraces the frame and embraces, can fix on petroleum pipeline fast, after the locking, relies on the air-blast packing of shutoff gasbag to realize the shutoff to petroleum pipeline, is applicable to the leak hole shutoff of different shapes, and the shutoff is abundant, and the effect is showing, is difficult for appearing the problem that petroleum leaked, easy operation is convenient, and the dismouting is efficient.

Drawings

FIG. 1 is a schematic diagram of a plugging mechanism according to the present utility model;

FIG. 2 is a schematic diagram of the structure of the upper seal pressing seat of the present utility model;

FIG. 3 is a top cross-sectional view of the upper seal platen of the present utility model;

FIG. 4 is a top cross-sectional view of the occlusion balloon of the present utility model.

In the figure: 1. a bottom holding frame; 2. fastening a screw; 3. an upper sealing and pressing seat; 4. a handle; 5. an arc-shaped laminating groove; 6. a locking frame is held; 7. a fastening nut; 8. an exhaust valve; 9. a tracheal assembly; 10. positioning perforation; 11. a rubber pad; 12. plugging the air bag; 13. a side seal glue ring; 14. hiding the groove; 15. perforating the trachea; 16. sealing rubber cushion; 17. the ears are twisted.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-4, the utility model provides a temporary plugging mechanism for petroleum conveying pipelines, which comprises a bottom holding frame 1 and an upper sealing and pressing seat 3 arranged opposite to the bottom holding frame 1, wherein four corners at the top end of the bottom holding frame 1 are fixedly provided with fastening screws 2, both sides of the upper sealing and pressing seat 3 are fixedly provided with a holding lock frame 6, the surface of the holding lock frame 6 is provided with a positioning perforation 10, the top end of the fastening screw 2 passes through the positioning perforation 10 to be connected with a fastening nut 7 in a threaded manner, the middle part of the bottom end of the upper sealing and pressing seat 3 is provided with an arc-shaped attaching groove 5, the middle part of the arc-shaped attaching groove 5 is provided with a hidden groove 14, the inside of the hidden groove 14 is connected with a plugging air bag 12 in a clamping manner, the inner side of the plugging air bag 12 is fixedly provided with a sealing rubber cushion 16, the outer side of the plugging air bag 12 is fixedly provided with an air pipe assembly 9, and both ends of the arc-shaped attaching groove 5 are fixedly provided with side sealing rubber rings 13;

during the use, firmly hug the temporary plugging mechanism and fix on petroleum pipeline, at last use the inflation equipment, aerify in to the shutoff gasbag 12 through trachea subassembly 9, make it constantly expand to jack-up sealing rubber pad 16 hugs closely the damaged position of petroleum pipeline, can fully fill hidden groove 14 after the shutoff gasbag 12 is inflated, make sealing rubber pad 16 and petroleum pipeline contact inseparabler, the shutoff effect is showing.

Referring to fig. 1, 3 and 4, further, a gas pipe perforation 15 is formed in the middle of the top end of the upper sealing and pressing seat 3, the top end of the gas pipe assembly 9 extends to the outside of the gas pipe perforation 15, and a gas exhaust valve 8 is fixedly arranged in the middle of the gas pipe assembly 9;

when the plugging mechanism is required to be disassembled in use, the exhaust valve 8 is opened firstly, gas in the plugging air bag 12 is discharged, the fastening nut 7 is unscrewed and removed afterwards, the plugging structure can be integrally disassembled, the disassembly and assembly efficiency is high, and time and labor are saved.

Referring to fig. 1 and 2, further, a tightening lug 17 is fixedly arranged on the fastening nut 7, handles 4 are fixedly arranged on two sides of the top end of the upper sealing and pressing seat 3, the middle part of the top end of the bottom holding frame 1 is arc-shaped, and a rubber pad 11 is fixedly arranged on the inner side wall of the arc-shaped bottom holding frame;

when the oil pipeline locking device is used, the fastening nut 7 with the lug is used for locking and fixing, the dismounting is more labor-saving and convenient, the oil pipeline can not be scratched by directly contacting with the oil pipeline through the rubber pad 11, and the oil pipeline locking device is safer and more reliable.

When the embodiment of the application is used, the following steps are adopted: the four fastening nuts 7 are sequentially unscrewed, the upper sealing pressing seat 3 is taken down, the arc-shaped attaching groove 5 is opposite to the damaged part of the petroleum pipeline, the bottom holding frame 1 is then made to be clung to the petroleum pipeline, the fastening screw 2 is penetrated into the positioning perforation 10, then the fastening nuts 7 are sequentially screwed down, the temporary plugging mechanism is firmly held and fixed on the petroleum pipeline, finally the air charging equipment is used, the air charging equipment is used for charging air into the plugging air bag 12 through the air pipe assembly 9, the air charging equipment is enabled to be continuously expanded, the sealing rubber cushion 16 is jacked to be clung to the damaged part of the petroleum pipeline, the plugging air bag 12 is inflated, the hidden groove 14 is fully filled, and the plugging air bag is in closer contact with the petroleum pipeline without gaps, so that the plugging effect is improved.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims (7)

1. The utility model provides a temporary plugging mechanism of petroleum conveying pipeline, includes that the bottom is embraced frame (1) and is just to last seal pressure seat (3) that the frame (1) set up, its characterized in that: four corners on the top end of the bottom holding frame (1) are fixedly provided with fastening screws (2), two sides of the upper sealing pressing seat (3) are fixedly provided with holding locking frames (6), the surfaces of the holding locking frames (6) are provided with positioning holes (10), the top ends of the fastening screws (2) penetrate through the positioning holes (10) to be in threaded connection with fastening nuts (7), the middle part of the bottom end of the upper sealing pressing seat (3) is provided with arc-shaped laminating grooves (5), the middle part of each arc-shaped laminating groove (5) is provided with a hiding groove (14), the inner clamping of each hiding groove (14) is connected with a sealing air bag (12), the inner side of each sealing air bag (12) is fixedly provided with a sealing rubber cushion (16), and the outer side of each sealing air bag (12) is fixedly provided with an air pipe assembly (9).

2. A temporary plugging mechanism for petroleum transportation pipelines according to claim 1, wherein: the middle part at the top end of the upper sealing and pressing seat (3) is provided with a tracheal perforation (15), and the top end of the tracheal component (9) extends to the outside of the tracheal perforation (15).

3. A temporary plugging mechanism for petroleum transportation pipelines according to claim 2, wherein: an exhaust valve (8) is fixedly arranged in the middle of the air pipe assembly (9).

4. A temporary plugging mechanism for petroleum transportation pipelines according to claim 1, wherein: both ends of the arc-shaped laminating groove (5) are fixedly provided with side sealing glue rings (13).

5. A temporary plugging mechanism for petroleum transportation pipelines according to claim 1, wherein: the tightening nut (7) is fixedly provided with a screwing lug (17).

6. A temporary plugging mechanism for petroleum transportation pipelines according to claim 1, wherein: handles (4) are fixedly arranged on two sides of the top end of the upper sealing and pressing seat (3).

7. A temporary plugging mechanism for petroleum transportation pipelines according to claim 1, wherein: the middle part at the top end of the bottom holding frame (1) is provided with an arc-shaped structure, and the inner side wall of the arc-shaped structure is fixedly provided with a rubber pad (11).