Anti-freezing and heat-insulating structure of polyethylene composite pipeline

Abstract

The utility model discloses a polyethylene composite pipeline anti-freezing heat preservation structure which comprises a first polyethylene composite pipeline shell, the inner surface of the first polyethylene composite pipeline shell is movably connected with a connecting pipe, and an anti-freezing heat preservation mechanism is fixedly installed on the inner surface of a second polyethylene composite pipeline shell. One side of the inner surface of the first polyethylene composite pipeline shell and one side of the inner surface of the second polyethylene composite pipeline shell are in threaded connection with a side face sealing mechanism, and the first polyethylene composite pipeline shell is connected with the second polyethylene composite pipeline shell through a connecting mechanism. According to the anti-freezing and heat-preservation structure for the polyethylene composite pipeline, the anti-freezing and heat-preservation mechanism is arranged, meanwhile, the side face sealing mechanism is arranged in a matched mode, so that the contact area between the outside and the polyethylene composite pipeline can be reduced, and meanwhile, the heat-preservation pad is arranged in a matched mode, so that the anti-freezing and heat-preservation effects can be achieved on the polyethylene composite pipeline; meanwhile, cold air is prevented from entering from the two sides of the anti-freezing and heat-insulating structure to affect the anti-freezing and heat-insulating effect.

Description

Technical Field

[0001] This utility model relates to the technical field of polyethylene composite pipes, specifically to a polyethylene composite pipe antifreeze and heat insulation structure. Background Technology

[0002] Polyethylene composite pipes have a wide range of applications. Firstly, in urban water supply systems, they can transport drinking water, supply fire-fighting water, and also transport industrial water. Secondly, in urban drainage systems, polyethylene composite pipes can transport sewage, rainwater, and industrial wastewater, and can withstand certain pressures. Furthermore, polyethylene composite pipes are widely used in the oil and gas transportation sector, capable of transporting energy resources such as crude oil, natural gas, and liquefied petroleum gas. Finally, they are also widely used in the chemical industry, transporting various chemical liquids and withstanding high pressures and temperatures. Current polyethylene composite pipes require surface protection; therefore, we propose a frost-resistant and heat-insulating structure for polyethylene composite pipes.

[0003] The currently used antifreeze insulation structure allows cold air to directly cover the surface of the polyethylene composite pipe during the antifreeze insulation process. The large contact area between the cold air and the polyethylene composite pipe means that at the point of leakage, the cold air can easily act directly on the surface of the polyethylene composite pipe, affecting the antifreeze insulation effect. Utility Model Content

[0004] The purpose of this utility model is to provide a frost-proof and heat-insulating structure for polyethylene composite pipes, in order to solve the problem mentioned in the background art that the currently used frost-proof and heat-insulating structures allow cold air to directly cover the surface of the polyethylene composite pipe during frost-proofing and heat-insulating, resulting in a large contact area with the polyethylene composite pipe. Consequently, leaks can easily be directly acted on the surface of the polyethylene composite pipe, affecting the frost-proof and heat-insulating effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a polyethylene composite pipe antifreeze and heat insulation structure, comprising a first polyethylene composite pipe shell, a connecting pipe movably connected to the inner surface of the first polyethylene composite pipe shell, a second polyethylene composite pipe shell fixedly connected to one side of the outer wall of the connecting pipe, an antifreeze and heat insulation mechanism fixedly installed on the inner surface of the second polyethylene composite pipe shell, a side sealing mechanism threadedly connected to one side of the inner surface of the first polyethylene composite pipe shell and the second polyethylene composite pipe shell, and the first polyethylene composite pipe shell being connected to the second polyethylene composite pipe shell through the connecting mechanism.

[0006] Preferably, the antifreeze and heat preservation mechanism includes an arc-shaped block, an inner connecting pipe, and a heat preservation pad. The arc-shaped blocks are all fixedly installed on both sides of the inner wall of the second polyethylene composite pipe shell. The inner connecting pipe is fixedly installed on the inner surface of the arc-shaped block, and the heat preservation pad is bonded to the inner surface of the inner connecting pipe.

[0007] Preferably, the gap between the second polyethylene composite pipe shell and the arc-shaped block is in a vacuum state.

[0008] Preferably, the side sealing mechanism includes an external block, a threaded tube, and a sealing gasket. The external block is disposed on the outer wall of the first polyethylene composite pipe shell and the second polyethylene composite pipe shell. A threaded tube is welded to one side of the outer wall of the external block, and a sealing gasket is adhered to one side of the outer surface of the external block.

[0009] Preferably, the threaded pipe is threaded to one side of the inner surface of the second polyethylene composite pipe shell.

[0010] Preferably, the connecting mechanism includes a connecting block, a first fixing plate, a limiting plate, a second fixing plate, and a threaded rod. The connecting block is fixedly installed on one side of the outer wall of the first polyethylene composite pipe shell. The first fixing plate is fixedly installed on the upper side of the outer wall of the connecting block. The limiting plate is movably connected to the inner wall of the first fixing plate. The second fixing plate is welded to one side of the outer wall of the limiting plate. The limiting plate is threadedly connected to the second fixing plate through the threaded rod.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This polyethylene composite pipe antifreeze and heat insulation structure, by setting a connection mechanism, can connect and install the polyethylene composite pipe antifreeze and heat insulation mechanism with the polyethylene composite pipe, thereby adjusting the connection distance between different polyethylene composite pipes;

[0013] 2. This polyethylene composite pipe antifreeze and heat insulation structure, by setting an antifreeze and heat insulation mechanism and a side sealing mechanism, can reduce the contact area between the outside and the polyethylene composite pipe. In addition, with the setting of the heat insulation pad, it can achieve the antifreeze and heat insulation effect for the polyethylene composite pipe, and at the same time prevent cold air from entering from both sides of the antifreeze and heat insulation structure, so as to avoid affecting the antifreeze and heat insulation effect. Attached Figure Description

[0014] Figure 1 This is a front view of the present utility model;

[0015] Figure 2 This is a diagram of the antifreeze and heat preservation mechanism of this utility model;

[0016] Figure 3 This is a diagram of the side sealing mechanism of this utility model;

[0017] Figure 4 This is a diagram of the connection mechanism of this utility model.

[0018] In the figure: 1. First polyethylene composite pipe shell; 2. Connecting pipe; 3. Second polyethylene composite pipe shell; 4. Anti-freeze and heat preservation mechanism; 401. Arc-shaped block; 402. Inner pipe; 403. Heat preservation pad; 5. Side sealing mechanism; 501. Outer block; 502. Threaded pipe; 503. Sealing gasket; 6. Connecting mechanism; 601. Connecting block; 602. First fixing plate; 603. Limiting plate; 604. Second fixing plate; 605. Threaded rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-4 This utility model provides a technical solution: a polyethylene composite pipe antifreeze and heat insulation structure, including a first polyethylene composite pipe shell 1, a connecting pipe 2 movably connected to the inner surface of the first polyethylene composite pipe shell 1, a second polyethylene composite pipe shell 3 fixedly connected to one side of the outer wall of the connecting pipe 2, and an antifreeze and heat insulation mechanism 4 fixedly installed on the inner surface of the second polyethylene composite pipe shell 3. The antifreeze and heat insulation mechanism 4 includes an arc-shaped block 401, an inner connecting pipe 402, and a heat insulation pad 403. The arc-shaped blocks 401 are all fixedly installed on both sides of the inner wall of the second polyethylene composite pipe shell 3, and the inner connecting pipe is fixedly installed on the inner surface of the arc-shaped blocks 401. 402. An insulation pad 403 is bonded and installed on the inner surface of the inner pipe 402. The arc-shaped block 401 is located on the surface of the polyethylene composite pipe. The contact area between the arc-shaped block 401 and the inner pipe 402 is small. This allows for a large contact area with the outer pipe during the frost protection and insulation of the polyethylene composite pipe. At the same time, the insulation pad 403 can provide frost protection and insulation for the surface of the polyethylene composite pipe. Secondly, the gap between the outer shell 3 of the polyethylene composite pipe and the arc-shaped block 401 is in a vacuum state. This can prevent cold air from leaking from the inner surface of the arc-shaped block 401 during frost protection, thus avoiding affecting the frost protection effect of the polyethylene composite pipe.

[0021] A side sealing mechanism 5 is threadedly connected to one side of the inner surface of the first polyethylene composite pipe shell 1 and the second polyethylene composite pipe shell 3. The side sealing mechanism 5 includes an outer block 501, a threaded pipe 502, and a sealing gasket 503. The outer block 501 is located on the outer wall of the first polyethylene composite pipe shell 1 and the second polyethylene composite pipe shell 3. The threaded pipe 502 is welded to one side of the outer wall of the outer block 501, and the sealing gasket 503 is bonded to one side of the outer surface of the outer block 501. Rotating the threaded pipe 502 allows it to move within the inner surface of the second polyethylene composite pipe shell 3, thereby moving the positions of the outer block 501 and the sealing gasket 503 to seal the opening of the second polyethylene composite pipe shell 3, thus providing a heat insulation effect for the surface of the polyethylene composite pipe. The threaded pipe 502 is threadedly connected to one side of the inner surface of the second polyethylene composite pipe shell 3, which can stably drive the sealing gasket 503 bonded to the outer block 501 to seal one side of the surface of the second polyethylene composite pipe shell 3, thereby enhancing the heat insulation effect of the polyethylene composite pipe shell.

[0022] The first polyethylene composite pipe shell 1 is connected to the second polyethylene composite pipe shell 3 through a connecting mechanism 6. The connecting mechanism 6 includes a connecting block 601, a first fixing plate 602, a limiting plate 603, a second fixing plate 604, and a threaded rod 605. The connecting block 601 is fixedly installed on one side of the outer wall of the first polyethylene composite pipe shell 1. The first fixing plate 602 is fixedly installed on the upper side of the outer wall of the connecting block 601. The limiting plate 603 is movably connected to the inner wall of the first fixing plate 602. The second fixing plate 604 is welded to one side of the outer wall of the limiting plate 603. The limiting plate 603 is threadedly connected to the second fixing plate 604 through the threaded rod 605. The first polyethylene composite pipe shell 1 and the second polyethylene composite pipe shell 3 are fitted onto the surface of the polyethylene composite pipe. The second fixing plate 604 is moved to cause the limiting plate 603 to move on the inner surface of the first fixing plate 602, thus adjusting the distance between the polyethylene composite pipes. The threaded rod 605 is rotated to fix it in the inner wall of the limiting plate 603, thus positioning the two polyethylene composite pipes.

[0023] Working principle: First, place the device in the designated position. Fit the first polyethylene composite pipe shell 1 and the second polyethylene composite pipe shell 3 onto the surface of the polyethylene composite pipe. Move the second fixing plate 604 to cause the limiting plate 603 to move on the inner surface of the first fixing plate 602. This allows adjustment of the connection distance between the polyethylene composite pipes. Rotate the threaded rod 605 to fix it within the inner wall of the limiting plate 603, thus positioning the two polyethylene composite pipes. Simultaneously, the arc-shaped block 401 is positioned on the surface of the polyethylene composite pipe, and the arc-shaped block 401 connects with the inner pipe. The small contact area of ​​402 allows for a large contact area with the external connection during the frost protection and insulation of the polyethylene composite pipe. Simultaneously, the insulation pad 403 provides frost protection and insulation for the surface of the polyethylene composite pipe. Rotating the threaded pipe 502 allows it to move within the inner surface of the second polyethylene composite pipe shell 3, which in turn moves the positions of the external block 501 and the sealing pad 503, thereby sealing the opening of the second polyethylene composite pipe shell 3 and achieving an insulation effect on the surface of the polyethylene composite pipe. This completes the operation process of a frost protection and insulation structure for a polyethylene composite pipe.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A polyethylene composite pipe antifreeze and heat insulation structure, characterized in that, The system includes a first polyethylene composite pipe shell (1), a connecting pipe (2) is movably connected to the inner surface of the first polyethylene composite pipe shell (1), a second polyethylene composite pipe shell (3) is fixedly connected to one side of the outer wall of the connecting pipe (2), an antifreeze and heat preservation mechanism (4) is fixedly installed on the inner surface of the second polyethylene composite pipe shell (3), a side sealing mechanism (5) is threadedly connected to one side of the inner surface of the first polyethylene composite pipe shell (1) and the second polyethylene composite pipe shell (3), and the first polyethylene composite pipe shell (1) is connected to the second polyethylene composite pipe shell (3) through a connecting mechanism (6).

2. The polyethylene composite pipe antifreeze and heat insulation structure according to claim 1, characterized in that: The antifreeze and heat preservation mechanism (4) includes an arc-shaped block (401), an inner pipe (402), and a heat preservation pad (403). The arc-shaped block (401) is fixedly installed on both sides of the inner wall of the second polyethylene composite pipe shell (3). The inner pipe (402) is fixedly installed on the inner surface of the arc-shaped block (401), and the heat preservation pad (403) is bonded to the inner surface of the inner pipe (402).

3. The polyethylene composite pipe antifreeze and heat insulation structure according to claim 2, characterized in that: The gap between the second polyethylene composite pipe shell (3) and the arc block (401) is in a vacuum state.

4. The polyethylene composite pipe antifreeze and heat insulation structure according to claim 1, characterized in that: The side sealing mechanism (5) includes an outer block (501), a threaded pipe (502), and a sealing gasket (503). The outer block (501) is located on the outer wall of the first polyethylene composite pipe shell (1) and the second polyethylene composite pipe shell (3). The threaded pipe (502) is welded to one side of the outer wall of the outer block (501), and the sealing gasket (503) is bonded to one side of the outer surface of the outer block (501).

5. The polyethylene composite pipe antifreeze and heat insulation structure according to claim 4, characterized in that: The threaded pipe (502) is threaded to one side of the inner surface of the second polyethylene composite pipe shell (3).

6. The polyethylene composite pipe antifreeze and heat insulation structure according to claim 1, characterized in that: The connecting mechanism (6) includes a connecting block (601), a first fixing plate (602), a limiting plate (603), a second fixing plate (604), and a threaded rod (605). The connecting block (601) is fixedly installed on one side of the outer wall of the first polyethylene composite pipe shell (1). The first fixing plate (602) is fixedly installed on the upper side of the outer wall of the connecting block (601). The inner wall of the first fixing plate (602) is movably connected to the limiting plate (603). The second fixing plate (604) is welded to one side of the outer wall of the limiting plate (603). The limiting plate (603) is threadedly connected to the second fixing plate (604) through the threaded rod (605).

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