Novel metal thermal insulation pipe

Abstract

The utility model discloses a novel metal heat preservation pipe which comprises a pipe body, a left end head and a right end head, a plurality of stable supporting feet are arranged on the outer wall of the pipe body, a polyurethane plastic sleeve is connected to the outer wall of the pipe body in a sleeved mode, a guide groove is formed in the outer wall of the polyurethane plastic sleeve, the guide groove is of an inclined concave structure, and a vacuum cavity is formed in the pipe body. The left end head is provided with an external thread, the right end head is internally provided with an internal thread, and the external thread and the internal thread are matched in specification. Due to heat insulation of the vacuum cavity, heat loss of the pipe body is slow, it is guaranteed that the temperature in the pipe body is constant, water flow in soil flows to the two sides of the pipe body along with the guide grooves due to the arrangement of the guide grooves, corrosion of liquid to the outer wall of a pipeline is avoided, and the anti-corrosion capacity of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a novel metal thermal insulation pipe. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe, which is used for the transportation of liquid, gas and other media. After searching, the patent with the authorization publication number of CN208587614 U discloses polyurethane plastic-sheathed steel insulated pipe. The above patent has the following shortcomings: after the pipe is buried underground for a long time, its surface layer will be corroded to a certain extent, and its insulation capacity will be greatly reduced, which cannot meet people's requirements. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and provides a new type of metal thermal insulation pipe.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A novel metal insulation pipe comprises a pipe body and a left end and a right end. The outer wall of the pipe body is provided with a plurality of stabilizing legs, and a polyurethane plastic sleeve is sleeved on the outer wall of the pipe body. A guide groove is provided on the outer wall of the polyurethane plastic sleeve, and the guide groove is an oblique concave structure. A vacuum cavity is provided in the pipe body.

[0006] Furthermore, the left end is provided with an external thread, and the right end is provided with an internal thread, and the specifications of the external thread and the internal thread are matched.

[0007] Furthermore, V-shaped grooves are formed at both ends of the polyurethane plastic sleeve.

[0008] Furthermore, a conical sleeve is provided between the tube body and the left end and the right end.

[0009] Furthermore, the vacuum chamber is provided with an air extraction valve, which is located on the conical sleeve.

[0010] Furthermore, the polyurethane plastic sleeve is provided with a plug-in slot, and the specification of the plug-in slot is matched with the specification of the stabilizing leg.

[0011] Furthermore, an adhesive layer is provided between the inner wall of the polyurethane plastic sleeve and the outer wall of the tube body.

[0012] The beneficial effects of the utility model are:

[0013] 1. By opening a vacuum cavity in the pipe body, the thermal insulation structure of the outer layer of the pipe body changes and loses its capacity, but it will not have a decisive change on the thermal insulation capacity of the pipe body. On the contrary, due to the thermal insulation of the vacuum cavity, the heat loss of the pipe body is slow, which is conducive to ensuring a constant temperature inside the pipe body.

[0014] 2. By setting the guide groove on the polyurethane plastic sleeve, the water flow inside the soil will flow to both sides of the pipe body along the guide groove, avoiding the corrosion of the outer wall of the pipe by the liquid, increasing the anti-corrosion ability of the device, and ensuring the thermal insulation ability from the side.

[0015] 3. Through the setting of the V-groove structure, the polyurethane plastic sleeve can buffer the stress inside the soil, reduce the possibility of rapid destruction, and increase the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of the tube body proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the main structure of the tube body proposed by the utility model;

[0018] Figure 3 This is a schematic diagram of the side view structure of the tube body proposed by the utility model;

[0019] Figure 4 This is a schematic diagram of the side section structure of the tube body proposed by the utility model.

[0020] In the figure: 1. Tube body; 2. Left end; 3. Right end; 4. Adhesive layer; 5. Polyurethane plastic sleeve; 6. Vacuum chamber; 7. Internal thread; 8. Conical sleeve; 9. Vacuum valve; 10. Guide groove; 11. External thread; 12. V-groove; 13. Stabilizing foot; 14. Plug-in groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] Reference Figure 1-4 A new type of metal insulation pipe includes a pipe body 1 and a left end 2 and a right end 3. The left end 2 is provided with an external thread 11, and the right end 3 is provided with an internal thread 7. The specifications of the external thread 11 and the internal thread 7 are matched, so that the device is connected more simply and conveniently, saving time and effort.

[0023] The outer wall of the tube body 1 is provided with a plurality of stabilizing legs 13, and the outer wall of the tube body 1 is sleeved with a polyurethane plastic sleeve 5, and a plug-in slot 14 is provided on the polyurethane plastic sleeve 5, and the specification of the plug-in slot 14 is adapted to the specification of the stabilizing legs 13, and an adhesive layer 4 is provided between the inner wall of the polyurethane plastic sleeve 5 and the outer wall of the tube body 1, and the stabilizing legs 13 prevent the tube body 1 from rolling easily when placed, so that the device is placed stably;

[0024] A guide groove 10 is provided on the outer wall of the polyurethane plastic sleeve 5, and the guide groove 10 is an oblique concave structure, so that the water flow inside the soil will flow to both sides of the pipe body along the guide groove 10, avoiding the corrosion of the outer wall of the pipeline 1 by the liquid, increasing the anti-corrosion ability of the device, and ensuring the thermal insulation ability from the side. A vacuum chamber 6 is provided in the pipe body 1, and an air extraction valve 9 is provided on the vacuum chamber 6. A conical sleeve 8 is provided between the pipe body 1 and the left end 2 and the right end 3; the air extraction valve 9 is located on the conical sleeve 8, even if the thermal insulation structure of the outer layer of the pipe body 1 changes and loses the thermal insulation ability of the pipe body 1, it will not have a decisive change on the thermal insulation ability of the pipe body 1 itself. On the contrary, due to the thermal insulation of the vacuum chamber 6, the heat loss of the pipe body 1 is slower, which is conducive to ensuring a certain temperature in the pipe body 1. V-grooves 12 are provided at both ends of the polyurethane plastic sleeve 5. The structure of the V-groove 12 enables the polyurethane plastic sleeve 5 to buffer the stress inside the soil, reduce the possibility of rapid destruction of itself, and improve the service life of the device.

[0025] The working principle of this embodiment is as follows: the connected pipe body 1 is placed in the soil, and a plurality of stabilizing legs 13 prevent the pipe body 1 from rolling easily when placed. The guide groove 10 is an oblique concave structure so that the water flow inside the soil will flow to both sides of the pipe body along the guide groove 10, thereby avoiding liquid corrosion on the outer wall of the pipe 1. The structure of the V-shaped groove 12 enables the polyurethane plastic sleeve 5 to buffer the stress inside the soil, thereby reducing the possibility of rapid destruction thereof and increasing the service life of the device.

Claims

1. A new type of metal insulation pipe, comprising a pipe body (1) and a left end (2) and a right end (3), characterized in that: The outer wall of the tube body (1) is provided with a plurality of stabilizing legs (13), and the outer wall of the tube body (1) is sleeved with a polyurethane plastic sleeve (5), the outer wall of the polyurethane plastic sleeve (5) is provided with a guide groove (10), the guide groove (10) is an oblique concave structure, and a vacuum chamber (6) is provided in the tube body (1).

2. A new type of metal insulation pipe according to claim 1, characterized in that: The left end (2) is provided with an external thread (11), and the right end (3) is provided with an internal thread (7), and the specifications of the external thread (11) and the internal thread (7) are compatible.

3. A new type of metal insulation pipe according to claim 2, characterized in that: The polyurethane plastic sleeve (5) has V-shaped grooves (12) at both ends.

4. A new type of metal insulation pipe according to claim 1, characterized in that: A conical sleeve (8) is provided between the tube body (1) and the left end (2) and the right end (3).

5. A new type of metal thermal insulation pipe according to claim 3, characterized in that: The vacuum chamber (6) is provided with an air extraction valve (9), and the air extraction valve (9) is located on the conical sleeve (8).

6. A new type of metal insulation pipe according to claim 1, characterized in that: The polyurethane plastic sleeve (5) is provided with an inserting groove (14), and the specification of the inserting groove (14) is compatible with the specification of the stabilizing support foot (13).

7. A new type of metal insulation pipe according to claim 6, characterized in that: An adhesive layer (4) is provided between the inner wall of the polyurethane plastic sleeve (5) and the outer wall of the tube body (1).

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