CN219530082U

CN219530082U - Antioxidant high-temperature-resistant seamless steel pipe

Info

Publication number: CN219530082U
Application number: CN202320756415.6U
Authority: CN
Inventors: 钱燕青; 黄晓红; 钱凯
Original assignee: Jiangyin Donghao Stainless Steel Tube Co ltd
Current assignee: Jiangyin Donghao Stainless Steel Tube Co ltd
Priority date: 2023-04-07
Filing date: 2023-04-07
Publication date: 2023-08-15
Anticipated expiration: 2033-04-07

Abstract

The utility model relates to the technical field of seamless steel pipes, and discloses an antioxidant high-temperature-resistant seamless steel pipe which comprises a butt joint pipe, wherein one end of the butt joint pipe is provided with a first external thread, the other end of the butt joint pipe is provided with a second external thread, a threaded sleeve is assembled on the first external thread, a traction rod is fixedly assembled on the threaded sleeve, the threaded sleeve is provided with a sliding cavity and a sliding groove, a plurality of fixed blocks are fixedly assembled on the butt joint pipe, sliding rods are movably assembled on the fixed blocks, one end of each sliding rod is fixedly assembled with a limiting block, the other end of each sliding rod is fixedly assembled with a ball, the balls are movably assembled with the sliding cavity, and connecting pieces are fixedly assembled between the sliding rods.

Description

Antioxidant high-temperature-resistant seamless steel pipe

Technical Field

The utility model relates to the technical field of seamless steel pipes, in particular to an oxidation-resistant high-temperature-resistant seamless steel pipe.

Background

The seamless steel pipe is a hollow section pipe, is used as a large amount of conveying fluid, such as petroleum, natural gas, coal gas, water and certain solid materials, and compared with solid steel materials such as round steel, the steel pipe has the same bending and torsion resistance, has lighter weight, is an economic section steel, is widely used for manufacturing structural parts and mechanical parts, such as a petroleum drill rod, an automobile transmission shaft, a bicycle frame, a steel scaffold used in building construction and the like, and is used for manufacturing annular parts by using the steel pipe.

An existing oxidation-resistant and high-temperature-resistant seamless steel pipe (application number: CN 202022299153.4) the device is provided with a polyurethane waterproof coating, a zinc coating and an asphalt corrosion-resistant layer, because the polyurethane waterproof coating is sprayed on the inner wall of the seamless steel pipe body, fluid inside the seamless steel pipe body can be separated from the seamless steel pipe body, and the zinc coating and the asphalt corrosion-resistant layer on the outer wall of the seamless steel pipe body act together to protect the outer wall of the seamless steel pipe body, thereby improving the antioxidation effect of the seamless steel pipe, reducing the rust of the seamless steel pipe, further prolonging the service life of the seamless steel pipe, by being provided with a high temperature resistant cavity, a high temperature resistant ceramic layer and an organic silicon resin heat-insulating layer, the arrangement of the high temperature resistant ceramic layer can ensure that the steel pipe still has good shock resistance under the high temperature environment without increasing the consumable material of the steel pipe on the premise of the increase of the heat-resistant cavity, and the organic silicon resin heat-insulating layer is coated on the inner wall of the seamless steel pipe body, thereby enhancing the high temperature resistance of the seamless steel pipe, simultaneously, the device is provided with a first connecting end, a thread, a raised strip, a second connecting end, a sealing ring and a sealing ring are connected with the inner surface of the seamless steel pipe by being provided with a first connecting end, a second connecting end, a sealing ring is connected with the first connecting end and a sealing ring is connected with the inner surface of the sealing ring by the sealing ring, and the sealing ring is connected with the sealing ring and the sealing ring simultaneously by the sealing ring, thereby improving the convenience of operation and the tightness of the joint of the seamless steel pipes when the seamless steel pipes are spliced, but the prior antioxidant and high temperature resistant seamless steel pipes have the following problems in the use process:

according to the seamless steel pipe, the threaded raised strips on the surface of the first connecting ring groove are meshed with the threaded grooves on the surface of the second connecting ring groove by rotating the seamless steel pipe, if two thick and long seamless steel pipes are in butt joint, the weight of the seamless steel pipe is increased, the seamless steel pipe cannot rotate, and the butt joint difficulty is high, so that the anti-oxidation high-temperature-resistant seamless steel pipe is necessary to be used in the technical field of the existing seamless steel pipe.

Disclosure of Invention

(one) solving the technical problems

Aiming at the problems that the weight of the seamless steel pipes is increased, the seamless steel pipes cannot rotate and the butt joint difficulty is high due to the butt joint of the two existing thick and long seamless steel pipes, the utility model provides an antioxidant high-temperature-resistant seamless steel pipe, which has the advantage of improving the butt joint effect between the seamless steel pipes, and solves the problems proposed by the background technology.

(II) technical scheme

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

the utility model provides an antioxidation high temperature resistant seamless steel pipe, includes to take over, the one end of taking over be provided with first external screw thread, the other end of taking over is provided with the second external screw thread, screw thread assembly has screw thread sleeve on the first external screw thread, fixedly assembled with traction lever on the screw thread sleeve, screw thread sleeve's inside annular is provided with the sliding chamber, screw thread sleeve's side annular is provided with the sliding tray, the sliding tray communicates with the sliding chamber, fixedly assembled with a plurality of fixed blocks on taking over, all movable assembly has the slide bar on the fixed block, the one end of slide bar is fixed fixedly assembled with stopper, the other end of slide bar corresponds respectively and carries out movable assembly with sliding chamber and sliding tray, the other end fixed assembly of slide bar has the ball, the ball carries out movable assembly with the sliding chamber.

Preferably, a connecting sheet is fixedly arranged between the sliding rods and is positioned between the threaded sleeve and the fixed block.

Preferably, the bottom of the butt joint pipe is fixedly provided with a vertical plate, the vertical plate is fixedly provided with a transverse plate, the transverse plate is fixedly provided with an assembly plate, the assembly plate is fixedly provided with a placement ring, and the placement ring is positioned on one side of the butt joint pipe.

Preferably, the placing ring is provided with a placing opening, the placing ring is provided with a fastening bolt in a threaded manner, and one end of the fastening bolt penetrates through the placing opening.

Preferably, the distance between the transverse plate and the threaded sleeve is larger than the distance between one end of the traction rod and the threaded sleeve.

Preferably, the butt joint pipe comprises a steel pipe main body, wherein an organic silicon resin heat insulation layer is fixedly assembled on the steel pipe main body, and a galvanized layer is fixedly assembled on the organic silicon resin heat insulation layer.

(III) beneficial effects

Compared with the prior art, the utility model has the following beneficial effects:

according to the anti-oxidation high-temperature-resistant seamless steel tube, one butt joint tube is placed in the placing opening on the placing ring, one end of the butt joint tube is attached to one end of the other butt joint tube, the second external thread of the butt joint tube is close to the first external thread of the other butt joint tube, the movable fastening bolt is rotated on the placing ring, the butt joint tubes on the placing opening cannot be tilted, the two butt joint tubes are located on the same line, the traction rod is pulled, the threaded sleeve is rotated and moved on the first external thread, sliding cavities and sliding grooves on the threaded sleeve slide on the rolling balls and the sliding rods respectively until the limiting block is attached to the fixed block, at the moment, the threaded sleeve is used for threaded assembly of the second external thread of the one butt joint tube and the first external thread of the other butt joint tube respectively, so that the connection stability between the two butt joint tubes is improved, and the installation of the two butt joint tubes is facilitated.

Drawings

FIG. 1 is a schematic diagram of a three-dimensional structure of an antioxidant high-temperature-resistant seamless steel pipe;

FIG. 2 is a schematic cross-sectional view of FIG. 1 in accordance with the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

fig. 4 is a schematic diagram of a three-dimensional structure of an antioxidant high-temperature-resistant seamless steel pipe in the utility model.

In the figure:

10. a steel pipe main body; 11. a silicone resin insulation layer; 12. a zinc plating layer; 13. a first external thread;

20. a second external thread; 21. a threaded sleeve; 22. a traction rod; 23. a fixed block;

30. a slide bar; 31. a limiting block; 32. a connecting sheet; 33. a riser;

40. a cross plate; 41. an assembly plate; 42. placing a ring; 43. a placement port;

50. a fastening bolt; 51. a sliding chamber; 52. a sliding groove; 53. and (3) rolling balls.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

As shown in fig. 1 to 4, which are schematic structural views of an antioxidant and high temperature resistant seamless steel pipe according to a preferred embodiment of the present utility model, the antioxidant and high temperature resistant seamless steel pipe according to this embodiment includes a butt pipe, one end of the butt pipe is provided with a first external thread 13, the other end of the butt pipe is provided with a second external thread 20, the first external thread 13 is screwed with a threaded sleeve 21, the threaded sleeve 21 is fixedly provided with a traction rod 22, the threaded sleeve 21 is internally provided with a sliding cavity 51 in a ring shape, a side surface of the threaded sleeve 21 is annularly provided with a sliding groove 52 communicating with the sliding cavity 51, the butt pipe is fixedly provided with a plurality of fixing blocks 23, the fixing blocks 23 are movably provided with sliding rods 30, one ends of the sliding rods 30 are fixedly provided with limiting blocks 31, the other ends of the sliding rods 30 are respectively and correspondingly rotated in the sliding cavity 51 and the sliding groove 52, the other ends of the sliding rods 30 are fixedly provided with connecting pieces 32, the connecting pieces 32 are fixedly provided between the threaded sleeve 21 and the fixing blocks 23, and the connecting pieces 32 are located between the sliding rods 21 and the fixing blocks 23.

The bottom of the butt joint pipe is fixedly provided with a vertical plate 33, the vertical plate 33 is fixedly provided with a transverse plate 40, the transverse plate 40 is fixedly provided with a mounting plate 41, the mounting plate 41 is fixedly provided with a placing ring 42, the placing ring 42 is positioned on one side of the butt joint pipe, the placing ring 42 is provided with a placing opening 43, the placing ring 42 is provided with a fastening bolt 50 in a threaded manner, one end of the fastening bolt 50 penetrates into the placing opening 43, and the distance between the transverse plate 40 and the threaded sleeve 21 is greater than the distance between one end of the traction rod 22 and the threaded sleeve 21.

The butt joint pipe comprises a steel pipe body 10, wherein an organic silicon resin heat insulation layer 11 is fixedly assembled on the steel pipe body 10, and a galvanized layer 12 is fixedly assembled on the organic silicon resin heat insulation layer 11.

In this embodiment, one butt joint pipe is placed in the placement opening 43 on the placement ring 42, so that one end of the butt joint pipe is attached to one end of the other butt joint pipe, the second external thread 20 of the butt joint pipe is close to the first external thread 13 of the other butt joint pipe, the moving fastening bolt 50 is rotated on the placement ring 42, so that the butt joint pipes on the placement opening 43 cannot be tilted, the two butt joint pipes are on the same line, the traction rod 22 is pulled, the threaded sleeve 21 is rotated and moved on the first external thread 13, and the sliding cavity 51 and the sliding groove 52 on the threaded sleeve 21 slide on the ball 53 and the sliding rod 30 respectively until the limiting block 31 is attached to the fixed block 23, and at this time, the threaded sleeve 21 is in threaded assembly with the second external thread 20 of the one butt joint pipe and the first external thread 13 of the other butt joint pipe respectively, so that the connection stability between the two butt joint pipes is increased, and the installation of the two butt joint pipes is facilitated.

Although embodiments of the present utility model 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 therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An oxidation-resistant high-temperature-resistant seamless steel pipe comprises a butt joint pipe,

the method is characterized in that:

one end of butt joint pipe be provided with first external screw thread (13), the other end of butt joint pipe is provided with second external screw thread (20), screw thread is equipped with screw thread sleeve (21) on first external screw thread (13), fixedly mounted has traction lever (22) on screw thread sleeve (21), the inside annular of screw thread sleeve (21) is provided with sliding chamber (51), the side annular of screw thread sleeve (21) is provided with sliding tray (52), sliding tray (52) are linked together with sliding chamber (51), fixedly mounted has a plurality of fixed blocks (23) on the butt joint pipe, all movable mounting has slide bar (30) on fixed block (23), the one end of slide bar (30) is all fixed and is equipped with stopper (31), the other end of slide bar (30) corresponds respectively and carries out movable mounting with sliding chamber (51) and sliding tray (52), the other end fixed mounting of slide bar (30) has ball (53), ball (53) carry out movable mounting with sliding chamber (51).

2. An oxidation-resistant and high-temperature-resistant seamless steel pipe according to claim 1, characterized in that: a connecting sheet (32) is fixedly arranged between the sliding rods (30), and the connecting sheet (32) is positioned between the threaded sleeve (21) and the fixed block (23).

3. An oxidation-resistant and high-temperature-resistant seamless steel pipe according to claim 2, characterized in that: the bottom of the butt joint pipe is fixedly provided with a vertical plate (33), the vertical plate (33) is fixedly provided with a transverse plate (40), the transverse plate (40) is fixedly provided with an assembly plate (41), the assembly plate (41) is fixedly provided with a placement ring (42), and the placement ring (42) is located on one side of the butt joint pipe.

4. An oxidation-resistant and high-temperature-resistant seamless steel pipe according to claim 3, wherein: the placing ring (42) is provided with a placing opening (43), the placing ring (42) is provided with a fastening bolt (50) in a threaded mode, and one end of the fastening bolt (50) penetrates into the placing opening (43).

5. An oxidation-resistant and high-temperature-resistant seamless steel pipe according to claim 4, wherein: the distance between the transverse plate (40) and the threaded sleeve (21) is larger than the distance between one end of the traction rod (22) and the threaded sleeve (21).

6. An oxidation-resistant and high-temperature-resistant seamless steel pipe according to claim 5, wherein: the butt joint pipe comprises a steel pipe main body (10), wherein an organic silicon resin heat insulation layer (11) is fixedly assembled on the steel pipe main body (10), and a galvanized layer (12) is fixedly assembled on the organic silicon resin heat insulation layer (11).