CN218582490U

CN218582490U - Water heating type heat preservation pipe

Info

Publication number: CN218582490U
Application number: CN202222125278.4U
Authority: CN
Inventors: 支向东
Original assignee: Wuxi Beilai Tubes Co ltd
Current assignee: Wuxi Beilai Tubes Co ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-03-07
Anticipated expiration: 2032-08-12

Abstract

The utility model relates to a water heating type insulating tube, establish including inner tube and cover the outside outer tube of inner tube, the outer tube includes first body, connect inlet tube and outlet pipe on the first body, the inner tube includes the second body, the external diameter of second body is less than the internal diameter of first body, form annular space between second body and the first body, make hot water follow the inlet tube gets into annular space, discharges from the outlet pipe again, realizes the heat preservation to the second body, and simple structure heats and keeps warm effectually, guarantees crude oil transport efficiency.

Description

Water heating type insulating pipe

Technical Field

The utility model relates to a thermal insulation pipe technical field especially relates to a water heating type thermal insulation pipe.

Background

The heat preservation pipe is a short name of a heat insulation pipeline and is used for conveying liquid, gas and other media. In the prior art, pipelines for conveying crude oil are mostly directly conveyed by single-layer pipes, so that wax is easily deposited in ground oil pipelines, the conveying speed is reduced, even the pipelines are blocked, and the production efficiency is reduced.

Chinese utility model patent with document number CN216010015U discloses an anticorrosive insulating tube convenient to change anticorrosive insulation material, including inner tube, slide mechanism, heat preservation and outer tube, be provided with slide mechanism on the outer wall of inner tube, the heat preservation has been cup jointed to the slide mechanism outside, the outer tube has been cup jointed to the outside of heat preservation, the utility model discloses a slide mechanism cup joints the heat preservation in the outside of inner tube through the gyro wheel slip. Although the technical scheme can realize heat preservation of the conveying medium, the heating function is not provided.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, it is an object of the present invention to provide a water heating type thermal insulation pipe to solve one or more problems in the prior art.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the utility model provides a water heating type insulating tube, includes that inner tube and cover establish the outside outer tube of inner tube, the outer tube includes first body, connect inlet tube and outlet pipe on the first body, the inner tube includes the second body, the external diameter of second body is less than the internal diameter of first body, second body near-end and distal end have big-end respectively, just in the big-end small-end with the second body is connected, big-end in the big-end with first body is connected, form annular space between second body and the first body, the coupling is established to the near-end of first body and the outside cover of distal end, makes hot water follow the inlet tube gets into annular space, discharges from the outlet pipe again, realizes the heat preservation to the second body.

Furthermore, the big end in the reducer and the inner wall of the first pipe body are formed by welding.

Furthermore, the big head and the small head are formed by punching the near end and the far end of the second pipe body.

Further, the outer surfaces of the proximal and distal ends of the first tube have first inclined surfaces that are inclined inwardly along the axis.

Further, the coupling comprises a third pipe body, wherein a second inclined surface matched with the first inclined surface is arranged on the inner wall of the third pipe body, and the second inclined surface inclines outwards along the axis.

Further, the first inclined plane is in threaded connection with the second inclined plane.

Furthermore, a first hole for inserting the water inlet pipe is formed in the surface of the near end of the first pipe body, and a second hole for inserting the water outlet pipe is formed in the surface of the far end of the first pipe body.

Further, the water inlet pipe and the water outlet pipe are located on opposite sides of the first pipe body.

Further, the first pipe body and the second pipe body are steel pipes.

Compared with the prior art, the utility model discloses a beneficial technological effect as follows:

(one) the utility model discloses a water heating type insulating tube, establish including inner tube and cover the outside outer tube of inner tube, the second body external diameter of inner tube is less than the first body internal diameter of outer tube, forms annular space between second body and the first body, makes hot water follow the inlet tube gets into annular space, discharges from the outlet pipe again, realizes the heat preservation to the second body, and simple structure heats and keeps warm effectually, guarantees crude oil transportation efficiency.

And (II) further, adjacent heat preservation pipes are connected with each other through a coupling, the inner wall of the third pipe body is provided with a second inclined surface which is in threaded connection with the first inclined surface of the first pipe body, and the second inclined surface is in contact with the first inclined surface and extrudes the first inclined surface to generate stress after being screwed down, so that the friction force between the first pipe body and the coupling is improved.

Drawings

Fig. 1 shows a schematic structural diagram of a water heating type thermal insulation pipe provided by the first embodiment of the present invention.

In the drawings, the reference numbers:

1. an outer tube; 10. a first pipe body; 11. a water inlet pipe; 12. a water outlet pipe; 13. a first inclined plane; 14. a first hole; 15. a second hole; 2. an inner tube; 20. a second tube body; 21. a reducer; 211. a big end; 212. a small head; 22. an annular space; 3. a coupling; 30. a third tube; 31. a second inclined plane.

Detailed Description

To make the objects, features and advantages of the present invention more comprehensible, please refer to the accompanying drawings. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limitation of the implementation of the present invention, so that the present invention does not have the essential significance in the technology, and any modification of the structure, change of the ratio relationship or adjustment of the size should still fall within the scope of the technical content disclosed in the present invention without affecting the function and the achievable purpose of the present invention.

In the description of the present invention, the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like are defined to indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the invention.

In order to more clearly describe the structure of the water heating type thermal insulation pipe, the present invention defines the terms "distal end" and "proximal end", taking fig. 1 as an example, the left side of the first pipe 10 in fig. 1 is the proximal end, and the right side of the first pipe 10 in fig. 1 is the distal end.

Example one

Referring to fig. 1, a water heating type thermal insulation pipe includes an inner pipe 2 and an outer pipe 1 sleeved outside the inner pipe 2, the outer pipe 1 includes a first pipe body 10, the first pipe body 10 is connected with a water inlet pipe 11 and a water outlet pipe 12, the inner pipe 2 includes a second pipe body 20, an outer diameter of the second pipe body 20 is smaller than an inner diameter of the first pipe body 10, an annular space 22 is formed between the second pipe body 20 and the first pipe body 10, so that hot water enters the annular space 22 from the water inlet pipe 11 and is discharged from the water outlet pipe 12, thereby realizing thermal insulation of the second pipe body 20.

The specific structure of the second pipe body 20 and the coupling 3 is described below:

referring to fig. 1, further, the proximal end and the distal end of the second tube 20 are respectively provided with a small end 21, a small end 212 of the small end 21 is connected to the second tube 20, and a large end 211 of the small end 21 is welded to the inner wall of the first tube 10, so as to seal two ends of the annular space 22.

Referring to fig. 1, further, the reducer 21 is formed by stamping the proximal end and the distal end of the second tube 20.

Referring to fig. 1, further, the coupling 3 is sleeved outside the proximal end and the distal end of the first tube 10.

Referring to fig. 1, further, the outer surface of the proximal and distal ends of the first tube 10 has a first inclined surface 13, and the first inclined surface 13 is inclined along the axis toward the inside of the tube.

Referring to fig. 1, further, the coupling 3 includes a third tubular body 30, the inner wall of the third tubular body 30 has a second inclined surface 31 matching with the first inclined surface 13, and the second inclined surface 31 inclines outwards along the axis.

Preferably, in the first embodiment of the present invention, in the water heating type thermal insulation pipe, the first inclined surface 13 is in threaded connection with the second inclined surface 31, and after the threaded connection is tightened, the second inclined surface 31 contacts with the first inclined surface 13 and presses the first inclined surface 13 to generate stress, so as to improve the friction force between the first pipe body 10 and the coupling 3.

Referring to fig. 1, further, a first hole 14 for inserting the water inlet pipe 11 is formed in a surface of a proximal end of the first pipe 10, a second hole 15 for inserting the water outlet pipe 12 is formed in a surface of a distal end of the first pipe 10, the water inlet pipe 11 is welded to the first hole 14, and the water outlet pipe 12 is welded to the second hole 15.

Referring to fig. 1, further, the water inlet pipe 11 and the water outlet pipe 12 are located at opposite sides of the first pipe 10, so that hot water can flow around the second pipe 20 after entering the annular space 22, and heat can be sufficiently and uniformly transferred to the second pipe 20 and then flow out.

Further, the first pipe body 10 and the second pipe body 20 are steel pipes, meet the API5CT standard, are used for ground oil transportation, and are connected with each other through the coupling 3 between adjacent heat preservation pipes.

The utility model discloses a concrete work flow as follows:

crude oil circulates in the second pipe body 20 and the coupling 3 of the heat preservation pipes connected with each other, hot water enters the annular space 22 through the water inlet pipe 11, heat is transferred to the second pipe body 20, the crude oil is heated and preserved, and then the crude oil is discharged from the water outlet pipe 12.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The utility model provides a water heating type insulating tube which characterized in that: establish including inner tube and cover the outside outer tube of inner tube, the outer tube includes first body, connect inlet tube and outlet pipe on the first body, the inner tube includes the second body, the external diameter of second body is less than the internal diameter of first body, second body near-end and distal end have big end respectively, just in the big end small end with the second body is connected, big end in the big end with first body is connected, form annular space between second body and the first body, the coupling is established to the near-end of first body and the outside cover of distal end, makes hot water follow the inlet tube gets into annular space, discharges from the outlet pipe again, realizes the heat preservation to the second body.

2. The water heating type thermal insulation pipe as set forth in claim 1, wherein: the big end in the reducer and the inner wall of the first pipe body are formed by welding.

3. The water heating type thermal insulation pipe as claimed in claim 1, wherein: the big head and the small head are formed by punching the near end and the far end of the second pipe body.

4. The water heating type thermal insulation pipe as claimed in claim 1, wherein: the first body proximal and distal outer surfaces have first ramps that slope inwardly along an axis.

5. The water heating type thermal insulation pipe as claimed in claim 4, wherein: the coupling comprises a third pipe body, wherein a second inclined plane matched with the first inclined plane is arranged on the inner wall of the third pipe body, and the second inclined plane inclines outwards along the axis.

6. The water heating type thermal insulation pipe as claimed in claim 5, wherein: the first inclined plane is in threaded connection with the second inclined plane.

7. The water heating type thermal insulation pipe as set forth in claim 1, wherein: the surface of the near end of the first pipe body is provided with a first hole for the water inlet pipe to be inserted into, and the surface of the far end of the first pipe body is provided with a second hole for the water outlet pipe to be inserted into.

8. The water heating type thermal insulation pipe as set forth in claim 7, wherein: the water inlet pipe and the water outlet pipe are positioned on opposite sides of the first pipe body.