CN209762471U - High-pressure conveying flexible polyethylene composite pipe - Google Patents

Abstract

The utility model discloses a high-pressure conveying flexible polyethylene composite pipe, which relates to the technical field of conveying pipes and comprises a pipe body, wherein the outer surface of the pipe body is connected with a sliding component in a sliding way, and the outer surface of the front end of the pipe body is welded with a flange, the front surface of the flange is bonded with a sealing ring, and the front surface of the flange is uniformly provided with bolts in a penetrating way, the front surface of the tube body is provided with a sealing assembly, the sliding assembly comprises a protective sleeve, a limiting bolt, a sliding groove and a sliding rod, the inner wall of the protective sleeve is welded with the sliding groove, and the front surface of the protective sleeve is provided with a limit bolt in a penetrating way, the inside of the sliding chute is connected with a sliding rod in a sliding way, the sealing component comprises a silica gel ring, a convex ring and a groove, the convex ring is welded on the front surface of the tube body, and the rear surface of the pipe body is provided with a groove, the outer surface of the convex ring is bonded with a silica gel ring, and the sealing assembly is arranged to ensure the sealing performance of the connecting port of the pipe body in the connection process.

Description

A flexible polyethylene composite pipe for high-pressure transportation

technical field

The utility model relates to the technical field of conveying pipes, in particular to a high-pressure conveying flexible polyethylene composite pipe.

Background technique

Flexible composite high-pressure delivery pipe is a kind of oil and gas pipeline made of polymer composite material with high strength, high pressure, corrosion resistance, scaling resistance, small friction coefficient, good heat preservation, good flexibility and long service life. For industrial pipe fittings, however, the existing composite pipes are not well sealed, sometimes leaking, and the pipes are not flexible enough under high pressure requirements. Therefore, those skilled in the art provide a flexible polyethylene composite pipe for high-pressure delivery to solve the problems raised in the above-mentioned background technology.

Utility model content

The purpose of this utility model is to provide a flexible polyethylene composite pipe for high-pressure transportation to solve the problems raised in the above-mentioned background technology.

In order to achieve the above object, the utility model provides the following technical solutions:

A flexible polyethylene composite pipe for high-pressure transportation, including a pipe body, the outer surface of the pipe body is slidably connected with a sliding assembly, and the outer surface of the front end of the pipe body is welded with a flange, and the front surface of the flange is bonded with a sealing ring, and the front surface of the flange is uniformly provided with bolts, and the front surface of the pipe body is provided with a sealing assembly.

As a further solution of the present utility model: the sliding assembly includes a protective sleeve, a limit bolt, a chute and a slide bar, the inner wall of the protective sleeve is welded with a chute, and the front surface of the protective sleeve has limited penetration. Position bolts, the inside of the chute is slidingly connected with a slide bar.

As a further solution of the utility model: the sealing assembly includes a silicone ring, a protruding ring and a groove, the front surface of the pipe body is welded with a protruding ring, and the rear surface of the pipe body is provided with a groove, and the protruding ring The outer surface is bonded with a silicone ring.

As a further solution of the utility model: the pipe body includes a carbon fiber layer, a steel mesh layer, a polyethylene layer and a polytetrafluoroethylene layer, the inner layer of the polytetrafluoroethylene layer is a polyethylene layer, and the polyethylene The inner layer of the layer is a steel mesh layer, and the inner layer of the steel mesh layer is a carbon fiber layer.

As a further solution of the present invention: the protruding ring is matched with the groove, and the protruding ring and the groove are fixedly engaged and connected, the protruding ring is provided for the pipe head, and the groove is provided for the pipe tail.

As a further solution of the utility model: the number of the bolts is 9, and the material of the bolts is stainless steel.

Compared with the prior art, the beneficial effects of the utility model are:

The utility model further ensures the tightness of the connecting port of the pipe body when it is connected through the setting of the sealing assembly. Under the condition of a sealing ring, the secondary sealing is performed, which reduces the probability of leakage of the objects in the pipe. The setting can make the utility model adapt to different geological environments. In some harsh environments, the protective sleeve can further ensure that the pipe body is not damaged, and the multi-layer pipe body is set to ensure that the pipe body has a certain The flexibility reduces the difficulty of construction.

Description of drawings

Fig. 1 is a structural representation of a flexible polyethylene composite pipe for high-pressure delivery;

Fig. 2 is a structural schematic diagram of a sealing assembly in a high-pressure conveying flexible polyethylene composite pipe;

Fig. 3 is a schematic diagram of the structure of the pipe body in a flexible polyethylene composite pipe for high-pressure transportation.

In the figure: 1. Protective sleeve; 2. Limit bolt; 3. Chute; 4. Slide bar; 5. Pipe body; 6. Flange; 7. Bolt; 8. Sealing component; 9. Sealing ring; 10 11. Silicone ring; 12. Protruding ring; 13. Groove; 14. Carbon fiber layer; 15. Steel mesh layer; 16. Polyethylene layer; 17. Polytetrafluoroethylene layer.

Detailed ways

Please refer to Figures 1 to 3. In the embodiment of the utility model, a flexible polyethylene composite pipe for high-pressure transportation includes a pipe body 5, the outer surface of the pipe body 5 is slidingly connected with a sliding assembly 10, and the outer surface of the front end of the pipe body 5 is The flange 6 is welded, the front surface of the flange 6 is bonded with a sealing ring 9, and the front surface of the flange 6 is uniformly provided with bolts 7, the front surface of the pipe body 5 is provided with a sealing assembly 8, and the sliding assembly 10 includes The protective sleeve 1, the limit bolt 2, the chute 3 and the slide rod 4, the inner wall of the protective sleeve 1 is welded with the chute 3, and the front surface of the protective sleeve 1 is provided with the limit bolt 2, and the inside of the chute 3 Slidingly connected with a slide bar 4, the sealing assembly 8 includes a silicone ring 11, a protruding ring 12 and a groove 13, the front surface of the pipe body 5 is welded with a protruding ring 12, and the rear surface of the pipe body 5 is provided with a groove 13, and the protruding ring The outer surface of 12 is bonded with a silicone ring 11. The utility model ensures the tightness of the connection port when the pipe body 5 is connected through the setting of the sealing assembly 8. Under the condition of the sealing ring 9, the secondary Sealing reduces the probability of leakage of objects in the pipe. The utility model can be adapted to different geological environments through the setting of the sliding assembly 10. In some harsh environments, the protective sleeve 1 can further ensure that the pipe body 5 is not damaged.

In Fig. 1, 2 and 3: pipe body 5 comprises carbon fiber layer 14, steel mesh layer 15, polyethylene layer 16 and polytetrafluoroethylene layer 17, and the inner layer of polytetrafluoroethylene layer 17 is polyethylene layer 16, polytetrafluoroethylene layer 17 The inner layer of the vinyl layer 16 is a steel mesh layer 15, the inner layer of the steel mesh layer 15 is a carbon fiber layer 14, the protruding ring 12 is compatible with the groove 13, and the protruding ring 12 and the groove 13 are fixedly engaged and connected. The ring 12 is set for the pipe head, the groove 13 is set for the end of the pipe, the number of bolts 7 is 9, and the material of the bolts 7 is stainless steel, and the multi-layer pipe body 5 is set to ensure that the pipe body 5 is under high pressure. It has a certain degree of flexibility, which reduces the difficulty of construction, and the multi-layer structure of the pipe body 5 is formed by bonding and high-pressure extrusion, so that the strength of the pipe body 5 is guaranteed while the pipe body 5 has flexibility.

The working principle of the utility model is: when using the utility model, first loosen the limit bolt 2, slide the protective sleeve 1 on the pipe body 1 through the chute 3 on the slide rod 4, and tighten the limit bolt 2. The setting of the sliding assembly 10 can make the utility model adapt to different geological environments. In some harsh environments, the protective sleeve 1 can further ensure that the pipe body 5 is not damaged, and then connect it. First, the convex ring 12 is clamped In the groove 13, turn the flange 6 to align the screw holes on the flange, then insert the bolt 7, tighten the bolt to ensure the sealing of the connection port, and the setting of the sealing assembly 8 ensures that the pipe body 5 The tightness of the connection port when connecting, in the case of the sealing ring 9, performs secondary sealing, which reduces the probability of leakage of the objects in the pipe.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. Any equivalent replacement or change of the technical solution of the utility model and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A flexible polyethylene composite pipe for high-pressure transportation, including a pipe body (5), characterized in that the outer surface of the pipe body (5) is slidably connected with a sliding assembly (10), and the front end of the pipe body (5) The outer surface is welded with a flange (6), and the front surface of the flange (6) is bonded with a sealing ring (9), and the front surface of the flange (6) is surrounded and uniformly provided with bolts (7). A sealing component (8) is provided on the front surface of the pipe body (5). 2. A flexible polyethylene composite pipe for high-pressure transportation according to claim 1, characterized in that the sliding assembly (10) includes a protective sleeve (1), a limit bolt (2), a chute (3) and a slide bar (4), the inner wall of the protection sleeve (1) is welded with a chute (3), and the front surface of the protection sleeve (1) is penetrated with a limit bolt (2), the chute (3 ) internal sliding connection with slide bar (4). 3. A flexible polyethylene composite pipe for high-pressure transportation according to claim 1, characterized in that, the sealing assembly (8) includes a silicone ring (11), a convex ring (12) and a groove (13), the The front surface of the tube body (5) is welded with a protruding ring (12), and the rear surface of the tube body (5) is provided with a groove (13), and the outer surface of the protruding ring (12) is bonded with a silicone ring ( 11). 4. A flexible polyethylene composite pipe for high-pressure transportation according to claim 1, characterized in that the pipe body (5) includes a carbon fiber layer (14), a steel mesh layer (15), a polyethylene layer (16) and a polytetrafluoroethylene layer (17), the inner layer of the polytetrafluoroethylene layer (17) is a polyethylene layer (16), and the inner layer of the polyethylene layer (16) is a steel wire mesh layer (15), The inner layer of the steel mesh layer (15) is a carbon fiber layer (14). 5. A flexible polyethylene composite pipe for high-pressure transportation according to claim 3, characterized in that, the convex ring (12) is compatible with the groove (13), and the convex ring (12) and the groove ( 13) For fixed snap connection, the protruding ring (12) is provided for the pipe head, and the groove (13) is provided for the pipe tail. 6. The flexible polyethylene composite pipe for high-pressure transportation according to claim 1, characterized in that, the number of the bolts (7) is 9, and the material of the bolts (7) is stainless steel.