DN1600 polyethylene thermal insulation pipeline

Abstract

The utility model relates to the technical field of heat preservation pipes, in particular to a DN1600 polyethylene heat preservation pipeline which comprises a first outer pipe, a first inner pipe and a threaded ring, a first heat preservation material is arranged outside the first inner pipe, the first outer pipe is arranged outside the first heat preservation material, a connecting block is arranged at one end of the first outer pipe, and a second heat preservation material is arranged at the other end of the first outer pipe. The threaded ring is arranged on the outer side of the connecting block, a threaded groove is formed in the first outer pipe, then the threaded ring is rotated, the threaded ring moves on the first outer pipe and the connecting block through the threaded groove till the threaded ring moves to the connecting position between the first outer pipe and the connecting block, and the connecting position between the first outer pipe and the connecting block is fixed. The two thermal insulation pipes can be installed without using a plurality of fasteners to fix the thermal insulation pipes, so that the operation is simple and rapid, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thermal insulation pipes, in particular to a DN1600 polyethylene thermal insulation pipe. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media. It is used for thermal insulation of pipelines in petroleum, chemical, aerospace, hot spring, military, central heating, central air conditioning, municipal and other industries.

[0003] When a special medium needs to be transported, DN1600 polyethylene insulated pipes are needed to transport the medium. However, when installing the existing DN1600 polyethylene insulated pipes, two pipes are connected by a flange. The flange connection requires multiple fasteners to fix it, which is troublesome and cumbersome, reducing the work efficiency of the staff. Utility Model Content

[0004] In view of the above problems existing in the prior art, a DN1600 polyethylene insulated pipe is now provided.

[0005] The specific technical solutions are as follows:

[0006] A DN1600 polyethylene insulated pipe is designed, comprising a first outer pipe, a first inner pipe and a threaded ring, wherein a first thermal insulation material is arranged outside the first inner pipe, the first outer pipe is arranged outside the first thermal insulation material, a connecting block is arranged at one end of the first outer pipe, the threaded ring is arranged outside the connecting block, a threaded groove is opened on the first outer pipe, the threaded ring is connected to the first outer pipe via the threaded groove, and the threaded ring is connected to the connecting block via the threaded groove.

[0007] Preferably, the first thermal insulation material is connected to the outer wall of the first inner tube by bonding, and the first outer tube is connected to the first inner tube by a connecting rod.

[0008] Preferably, one end of the first outer tube is connected to one side of the connecting block by welding, and a sealing groove is provided on a side of the connecting block away from the first outer tube.

[0009] Preferably, a sealing gasket is provided inside the sealing groove, and the sealing gasket is connected to the inside of the sealing groove in an embedded manner, and one side of the sealing gasket fits the sealing groove.

[0010] Preferably, a side of the sealing gasket away from the sealing groove is fitted with one end of the protrusion, and the one end of the protrusion is connected to the sealing groove in an embedded manner.

[0011] Preferably, one end of the protrusion away from the sealing groove is fixedly connected to one end of the second inner tube, the outer wall of the second inner tube is provided with a second thermal insulation material, and the second thermal insulation material is connected to the second inner tube by adhesion.

[0012] Preferably, the connecting block is provided on the outer wall of the second thermal insulation material, and the connecting block is fixedly connected to the second inner tube via a connecting rod.

[0013] The above technical solution has the following advantages or beneficial effects:

[0014] 1. By setting the thread ring and the thread groove, when it is necessary to connect two insulation pipes, the first outer pipe and the connecting block are spliced ​​together, and then the thread ring is rotated. The thread ring moves on the first outer pipe and the connecting block through the thread groove until the thread ring moves to the connection between the first outer pipe and the connecting block. The connection between the first outer pipe and the connecting block is fixed, and the installation of the two insulation pipes can be completed without using multiple fasteners to fix them. It is simple and fast, and the work efficiency is improved.

[0015] 2. By setting up the sealing groove and the protrusion, before connecting the first inner tube and the second inner tube, the protrusion at one end of the second inner tube is embedded in the sealing groove on the connecting block of the first inner tube, so that the protrusion squeezes the sealing gasket, and the sealing gasket stretches due to the squeezing, thereby blocking the gap between the protrusion and the sealing groove, preventing the medium from flowing to the outside through the gap when being transmitted in the first inner tube and the second inner tube, thereby reflecting the practicality of this device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The embodiments of the present invention will be described more fully with reference to the attached drawings, which are however only used for illustration and description and are not intended to limit the scope of the present invention.

[0017] Figure 1 This is a structural schematic diagram of a DN1600 polyethylene insulation pipe proposed by the utility model;

[0018] Figure 2 This is a cross-sectional view of a DN1600 polyethylene insulation pipe proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the thread ring and the protrusion structure of a DN1600 polyethylene thermal insulation pipe proposed by the utility model;

[0020] Figure 4 The utility model provides a schematic diagram of the sealing groove and sealing pad structure of a DN1600 polyethylene thermal insulation pipe.

[0021] The above-mentioned figure marks indicate: 1. first outer tube; 2. second outer tube; 3. thread ring; 4. thread groove; 5. first inner tube; 6. first thermal insulation material; 7. second inner tube; 8. connecting block; 9. protrusion; 10. sealing groove; 11. sealing gasket; 12. second thermal insulation material. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0024] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0025] Reference Figure 1-4 A DN1600 polyethylene insulated pipe comprises a first outer pipe 1, a first inner pipe 5 and a threaded ring 3. A first insulating material 6 is arranged outside the first inner pipe 5, a first outer pipe 1 is arranged outside the first insulating material 6, a connecting block 8 is arranged at one end of the first outer pipe 1, a threaded ring 3 is arranged outside the connecting block 8, a threaded groove 4 is opened on the first outer pipe 1, the threaded ring 3 is connected to the first outer pipe 1 through the threaded groove 4, and the threaded ring 3 is connected to the connecting block 8 through the threaded groove 4. By setting the threaded ring 3 and the threaded groove 4, when two insulated pipes need to be connected, the first outer pipe 1 and the connecting block 8 are spliced ​​together, and then the threaded ring 3 is rotated, and the threaded ring 3 is moved on the first outer pipe 1 and the connecting block 8 through the threaded groove 4 until the threaded ring 3 moves Move to the connection between the first outer tube 1 and the connecting block 8, fix the connection between the first outer tube 1 and the connecting block 8, and complete the installation of the two insulation pipes. There is no need to use multiple fasteners to fix them. It is simple and quick, and the work efficiency is improved. By setting the sealing groove 10 and the protrusion 9, before connecting the first inner tube 5 and the second inner tube 7, the protrusion 9 at one end of the second inner tube 7 is embedded into the sealing groove 10 on the connecting block 8 of the first inner tube 5, so that the protrusion 9 squeezes the sealing gasket 11, and the sealing gasket 11 is squeezed and stretched to block the gap between the protrusion 9 and the sealing groove 10, thereby preventing the medium from flowing to the outside through the gap when being transmitted in the first inner tube 5 and the second inner tube 7, which reflects the practicality of this device.

[0026] Furthermore, the first thermal insulation material 6 is connected to the outer wall of the first inner tube 5 by adhesion, the first outer tube 1 is connected to the first inner tube 5 by a connecting rod, a thread is provided inside the thread ring 3, and a thread groove 4 is provided on the connecting block 8, the first outer tube 1 and the connecting block 8 to facilitate the movement of the thread ring 3 thereon, and a protrusion 9 and a connecting block 8 are provided at both ends of the first outer tube 1 and the connecting block 8, respectively.

[0027] Furthermore, one end of the first outer tube 1 is connected to one side of the connecting block 8 by welding, a sealing groove 10 is provided on the side of the connecting block 8 away from the first outer tube 1, the protrusion 9 fits into the sealing groove 10, and through holes are provided inside the connecting block 8 and the protrusion 9 to facilitate effective transportation of the medium.

[0028] Furthermore, a sealing gasket 11 is provided inside the sealing groove 10. The sealing gasket 11 is connected to the inside of the sealing groove 10 in an embedded manner. One side of the sealing gasket 11 fits the sealing groove 10. The sealing gasket 11 is made of rubber material and will stretch when squeezed.

[0029] Furthermore, the side of the sealing gasket 11 away from the sealing groove 10 is fitted with one end of the protrusion 9, and one end of the protrusion 9 is connected to the sealing groove 10 by embedding. The sealing groove 10 and the protrusion 9 are used to perform the first sealing on the inner tube, and the sealing gasket 11 is the second sealing, which effectively prevents the medium from flowing to the outside.

[0030] Furthermore, one end of the protrusion 9 away from the sealing groove 10 is fixedly connected to one end of the second inner tube 7, and the outer wall of the second inner tube 7 is provided with a second thermal insulation material 12, and the second thermal insulation material 12 is connected to the second inner tube 7 by adhesion. The inner tube is used to transport the medium, and the outer tube is used to protect the thermal insulation material.

[0031] Furthermore, a connecting block 8 is provided on the outer wall of the second thermal insulation material 12, and the connecting block 8 is fixedly connected to the second inner tube 7 through a connecting rod. The first thermal insulation material 6 and the second thermal insulation material 12 are DN1600 polyethylene thermal insulation materials.

[0032] Working principle: When using this device, first embed the protrusion 9 at one end of the second inner tube 7 into the sealing groove 10 on the connecting block 8 of the first inner tube 5, so that the protrusion 9 squeezes the sealing gasket 11, and the sealing gasket 11 is squeezed and stretched to block the gap between the protrusion 9 and the sealing groove 10, and then the first outer tube 1 and the connecting block 8 are spliced ​​together, and then the thread ring 3 is rotated, and the thread ring 3 moves on the first outer tube 1 and the connecting block 8 through the thread groove 4 until the thread ring 3 moves to the connection between the first outer tube 1 and the connecting block 8, fix the connection between the first outer tube 1 and the connecting block 8, connect and install the two insulation pipes, and then the work is completed.

[0033] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A DN1600 polyethylene insulated pipe, characterized by: The invention comprises a first outer tube (1), a first inner tube (5) and a threaded ring (3); the first inner tube (5) is provided with a first thermal insulation material (6) on the outside; the first outer tube (1) is provided with a connecting block (8) on the outside of the connecting block (8); a threaded ring (3) is provided on the first outer tube (1); a threaded groove (4) is provided on the first outer tube (1); the threaded ring (3) is connected to the first outer tube (1) via the threaded groove (4); and the threaded ring (3) is connected to the connecting block (8) via the threaded groove (4).

2. A DN1600 polyethylene insulated pipe according to claim 1, characterized in that: The first thermal insulation material (6) is connected to the outer wall of the first inner tube (5) by bonding, and the first outer tube (1) is connected to the first inner tube (5) by a connecting rod.

3. A DN1600 polyethylene insulated pipe according to claim 1, characterized in that: One end of the first outer tube (1) is connected to one side of the connecting block (8) by welding, and a sealing groove (10) is provided on a side of the connecting block (8) away from the first outer tube (1).

4. A DN1600 polyethylene insulated pipe according to claim 3, characterized in that: A sealing gasket (11) is provided inside the sealing groove (10); the sealing gasket (11) is connected to the inside of the sealing groove (10) in an embedded manner, and one side of the sealing gasket (11) is in contact with the sealing groove (10).

5. The DN1600 polyethylene insulated pipe according to claim 4, characterized in that: The side of the sealing gasket (11) away from the sealing groove (10) is in contact with one end of the protrusion (9), and the one end of the protrusion (9) is connected to the sealing groove (10) in an embedded manner.

6. A DN1600 polyethylene insulated pipe according to claim 5, characterized in that: One end of the protrusion (9) away from the sealing groove (10) is fixedly connected to one end of the second inner tube (7); the outer wall of the second inner tube (7) is provided with a second thermal insulation material (12); and the second thermal insulation material (12) is connected to the second inner tube (7) by adhesion.

7. A DN1600 polyethylene insulated pipe according to claim 6, characterized in that: The connecting block (8) is provided on the outer wall of the second thermal insulation material (12), and the connecting block (8) is fixedly connected to the second inner tube (7) via a connecting rod.

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