A ferrite alloy seamless steel pipe for high temperature operation

Abstract

The utility model discloses a ferrite alloy seamless steel pipe for high-temperature operation, relates to the technical field of seamless steel pipes, comprises a steel pipe main body, wherein the inner walls of the first semicircular plate and the second semicircular plate are both provided with a honeycomb layer, the inner walls of the honeycomb layer are provided with a bonding plate, the inner walls of the bonding plate are provided with an anti-skid layer, by providing the honeycomb layer, when the outer surface of the ferrite alloy seamless steel pipe for high-temperature operation has a high temperature, a hinge is provided to open and close the first semicircular plate and the second semicircular plate, so that the first semicircular plate and the second semicircular plate can be formed in a circular shape and fully wrap the outer surface of the steel pipe main body, the anti-skid layer can avoid the problem of circular plate installation and sliding, and by providing the honeycomb layer, a gap can be formed between the semicircular plate and the bonding plate, and the gap can block the high temperature from being transmitted to the first circular plate and the second circular plate, thereby effectively solving the problem of scalding workers or installation accidents caused by steel pipes being exposed to the outside.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a ferrite alloy seamless steel pipe for high temperature operation. Background Art

[0002] Ferritic alloy seamless steel pipe is an alloy pipe composed of ferrite phase. It is suitable for pipeline transportation systems under harsh working conditions such as high temperature, high pressure and high corrosion. Ferritic alloy seamless steel pipe has good toughness, corrosion resistance and high temperature strength, and can meet the needs of various industrial fields. It is widely used in petroleum, chemical, electric power, aerospace, nuclear industry and other industries. It is mainly used for transporting oil, natural gas, chemical liquids, steam and other fluids. The manufacturing process of ferritic alloy seamless steel pipe generally includes hot rolling, cold drawing and cold rolling. Among them, the hot rolling process is suitable for the production of large-diameter and thick-walled pipes, the cold drawing process is suitable for the production of small-diameter and thin-walled pipes, and the cold rolling process can produce medium-diameter and medium-walled pipes. In general, ferritic alloy seamless steel pipe is an ideal pipeline material with excellent performance and has broad application prospects in the industrial field.

[0003] For example, a high-pressure explosion-proof seamless steel pipe as announced with application number CN220470909U comprises a main pipe body, wherein a buffer cavity is provided between the inner walls of the main pipe body near one side edge, and the inner wall of the buffer cavity is inclined and extends in the direction of the axis center line of the main pipe body. In the utility model, a buffer cavity with an inner wall inclined and extending in the direction of the axis center line of the main pipe body is provided inside the main pipe body, and a docking sleeve is fixed on one side of the main pipe body, and the outer surface of the docking sleeve is arranged to be inclined and fit with the inner wall of the buffer cavity, and at the same time, the sealing ring on the outer surface of the docking sleeve is sealed and connected to the inside of the annular groove, so as to increase the sealing of the docking point. In actual use, the docking sleeve is made of rubber, and when the internal pressure of the pipeline acts on the docking sleeve, the docking sleeve can be pressed against the buffer cavity to increase its sealing. Under the action of the inclined surface, the greater the pressure, the higher the fit between the docking sleeve and the buffer cavity.

[0004] However, this type of high-pressure explosion-proof seamless steel pipe does not take into account that when using seamless steel pipes to transport high-temperature fluids, high temperatures will be generated on the surface of the steel pipes at the same time. Due to different usage scenarios of steel pipes, the exposed steel pipes are prone to scalding workers or installation accidents.

[0005] Therefore, in view of this, the existing structural deficiencies are studied and improved, and a ferrite alloy seamless steel pipe for high temperature operation is proposed. Utility Model Content

[0006] The utility model aims to provide a ferrite alloy seamless steel pipe for high temperature operation, so as to solve the problem in the above background technology that the steel pipe is exposed to the outside and is easy to cause burns to the operators or installation accidents.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ferritic alloy seamless steel pipe for high-temperature operation, comprising a steel pipe body, a first semicircular plate is arranged on the outer surface of the steel pipe body, two sets of hinges are arranged on the first semicircular plate, a second semicircular plate is arranged at the other end of the hinge, a honeycomb layer is arranged on the inner wall of the first semicircular plate and the second semicircular plate, a bonding plate is arranged on the inner wall of the honeycomb layer, an anti-slip layer is arranged on the inner wall of the bonding plate, and the anti-slip layer is in contact with the outer surface of the steel pipe body.

[0008] Furthermore, a connecting plate is fixedly provided on the steel pipe body, and two groups of connecting plates are provided and located at both ends of the steel pipe body.

[0009] Furthermore, a circular groove is formed on the connecting plate, and a rubber pad is arranged in the circular groove.

[0010] Furthermore, the connecting plate is provided with a plurality of fixing holes, and the fixing holes are located outside the circular groove.

[0011] Furthermore, two groups of buckle blocks are fixedly arranged on the first semicircular plate.

[0012] Furthermore, two groups of fixing plates are fixedly provided on the second semicircular plate, and the fixing plates correspond to the buckle blocks.

[0013] Furthermore, a buckle ring is fixedly provided on the fixing plate, and the buckle ring can be engaged and fixed with the buckle block.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. The utility model provides a honeycomb layer. When the outer surface of the ferrite alloy seamless steel pipe for high-temperature operation has a high temperature, a hinge is provided to open and close the first semicircular plate and the second semicircular plate, so that the first semicircular plate and the second semicircular plate can fully wrap the outer surface of the steel pipe body in a circular shape. The bonding plate is used to bond the outer surface of the steel pipe body. The anti-skid layer can avoid the problem of circular plate installation and sliding. The honeycomb layer can form a gap between the semicircular plate and the bonding plate. The gap can block the high temperature from being transmitted to the first circular plate and the second circular plate, thereby effectively solving the problem of exposed steel pipes easily causing burns to operators or installation accidents.

[0016] 2. The utility model plays the role of fixing the buckle ring by setting a fixing plate through the setting of the buckle ring. The buckle block is fixedly set on the first semicircular plate and corresponds to the buckle ring. The buckle block is set to an inclined surface. When the first semicircular plate and the second semicircular plate are combined, the buckle ring will slide to one end of the buckle block through the inclined surface of the buckle block to form a snap fit. The setting of the buckle ring and the buckle block plays the role of installing and disassembling the two groups of semicircular plates. The structure is simple and convenient for personnel to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the device body;

[0018] Figure 2 is a schematic diagram of the three-dimensional structure of the first semicircular plate;

[0019] Figure 3 is a schematic diagram of the three-dimensional structure of the anti-slip layer;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the fixing plate.

[0021] Figure 5 for Figure 3 A magnified schematic diagram of the three-dimensional structure of B

[0022] Figure 6 for Figure 2 A magnified schematic diagram of the three-dimensional structure of

[0023] In the figure: 1. steel pipe body; 11. connecting plate; 111. circular groove; 112. fixing hole; 113. rubber pad; 2. first semicircular plate; 21. hinge; 211. second semicircular plate; 212. honeycomb layer; 213. bonding plate; 214. anti-slip layer; 22. fixing plate; 221. buckle; 23. buckle block. DETAILED DESCRIPTION

[0024] 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 in 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.

[0025] Embodiment 1

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 5 Figure 6As shown, a ferritic alloy seamless steel pipe for high temperature operation includes a steel pipe body 1, a first semicircular plate 2 is arranged on the outer surface of the steel pipe body 1, two sets of hinges 21 are arranged on the first semicircular plate 2, and a second semicircular plate 211 is arranged at the other end of the hinge 21, and a honeycomb layer 212 is arranged on the inner wall of the first semicircular plate 2 and the second semicircular plate 211, and a bonding plate 213 is arranged on the inner wall of the honeycomb layer 212, and an anti-skid layer 214 is arranged on the inner wall of the bonding plate 213, and the anti-skid layer 214 is in contact with the outer surface of the steel pipe body 1.

[0027] Furthermore, when high temperature appears on the outer surface of the ferritic alloy seamless steel pipe used for high-temperature operation, a hinge 21 is provided to open and close the first semicircular plate 2 and the second semicircular plate 211, so that the first semicircular plate 2 and the second semicircular plate 211 can be circularly wrapped around the outer surface of the steel pipe body 1. The bonding plate 213 is used to bond and connect the outer surface of the steel pipe body 1. The anti-slip layer 214 can avoid the problem of circular plate installation and sliding. By providing a honeycomb layer 212, a gap can be formed between the semicircular plate and the bonding plate 213. The gap can block the high temperature from being transmitted to the first semicircular plate 2 and the second semicircular plate 211, thereby effectively solving the problem of exposed steel pipes that may easily cause burns to workers or installation accidents.

[0028] Furthermore, a connecting plate 11 is fixedly provided on the steel pipe body 1, and the connecting plate 11 is provided with two groups located at both ends of the steel pipe body 1, a circular groove 111 is opened on the connecting plate 11, a rubber pad 113 is arranged in the circular groove 111, and a plurality of fixing holes 112 are provided through the connecting plate 11, and the fixing holes 112 are located on the outside of the circular groove 111. The connection plate 11 and the fixing holes 112 are provided to facilitate personnel to connect seamless steel pipes. The staff uses a screw to pass through the fixing hole 112 to tighten the screw ring to form a fixed connection of the steel pipe. The circular groove 111 is used to install the rubber pad 113, and the rubber pad 113 is set to a circular ring shape. When the two groups of steel pipes are connected, the rubber pad 113 will form an extrusion seal, which can improve the sealing degree and avoid leakage problems.

[0029] Embodiment 2

[0030] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, the utility model proposes a ferritic alloy seamless steel pipe for high temperature operation. Compared with the first embodiment, as another implementation mode of the utility model, two groups of buckle blocks 23 are fixedly provided on the first semicircular plate 2, and two groups of fixing plates 22 are fixedly provided on the second semicircular plate 211, and the fixing plates 22 correspond to the buckle blocks 23, and a buckle ring 221 is fixedly provided on the fixing plate 22, and the buckle ring 221 can be engaged and fixed with the buckle block 23.

[0031] Furthermore, by setting a fixing plate 22, the buckle ring 221 is fixedly installed, and the buckle block 23 is fixedly set on the first semicircular plate 2 and corresponds to the buckle ring 221. The buckle block 23 is set to an inclined surface. When the first semicircular plate 2 and the second semicircular plate 211 are combined, the buckle ring 221 will slide to one end of the buckle block 23 through the inclined surface of the buckle block 23 to form a snap fit. The buckle ring 221 and the buckle block 23 are set to play the role of installing and disassembling the two groups of semicircular plates. The structure is simple and convenient for personnel to operate.

[0032] Working principle: When using this ferritic alloy seamless steel pipe for high-temperature operation, first, a hinge 21 is provided to open and close the first semicircular plate 2 and the second semicircular plate 211, so that the first semicircular plate 2 and the second semicircular plate 211 can be circularly wrapped around the outer surface of the steel pipe body 1, and the bonding plate 213 is used to bond and connect the outer surface of the steel pipe body 1. The anti-slip layer 214 can avoid the problem of circular plate installation and sliding. By providing a honeycomb layer 212, a gap can be formed between the semicircular plate and the bonding plate 213, and the gap can block the high temperature from being transmitted to the first semicircular plate 2 and the second semicircular plate 211, thereby effectively solving the problem of exposed steel pipes that may easily cause burns to workers or installation accidents.

[0033] Finally, by setting the fixing plate 22, the buckle ring 221 is fixedly installed. The buckle block 23 is fixedly set on the first semicircular plate 2 and corresponds to the buckle ring 221. The buckle block 23 is set to an inclined surface. When the first semicircular plate 2 and the second semicircular plate 211 are merged, the buckle ring 221 will slide to one end of the buckle block 23 through the inclined surface of the buckle block 23 to form a snap fit. The buckle ring 221 and the buckle block 23 are set to play the role of installing and disassembling the two groups of semicircular plates. The structure is simple and convenient for personnel to operate.

[0034] This is the working principle of this ferritic alloy seamless steel pipe for high temperature work.

[0035] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A ferritic alloy seamless steel pipe for high temperature operation, comprising a steel pipe body (1), characterized in that: The outer surface of the steel pipe body (1) is provided with a first semicircular plate (2), two sets of hinges (21) are provided on the first semicircular plate (2), and a second semicircular plate (211) is provided at the other end of the hinge (21), and the inner walls of the first semicircular plate (2) and the second semicircular plate (211) are both provided with a honeycomb layer (212), and the inner wall of the honeycomb layer (212) is provided with a bonding plate (213), and the inner wall of the bonding plate (213) is provided with an anti-slip layer (214), and the anti-slip layer (214) is in contact with the outer surface of the steel pipe body (1).

2. A ferrite alloy seamless steel pipe for high temperature operation according to claim 1, characterized in that: A connecting plate (11) is fixedly arranged on the steel pipe body (1), and two groups of connecting plates (11) are arranged at both ends of the steel pipe body (1).

3. The ferrite alloy seamless steel pipe for high temperature operation according to claim 2, characterized in that: The connecting plate (11) is provided with a circular groove (111), and a rubber pad (113) is arranged in the circular groove (111).

4. The ferrite alloy seamless steel pipe for high temperature operation according to claim 2, characterized in that: The connecting plate (11) is provided with a plurality of groups of fixing holes (112) extending therethrough, and the fixing holes (112) are located outside the circular groove (111).

5. The ferrite alloy seamless steel pipe for high temperature operation according to claim 1, characterized in that: Two groups of buckle blocks (23) are fixedly arranged on the first semicircular plate (2).

6. The ferrite alloy seamless steel pipe for high temperature operation according to claim 1, characterized in that: Two groups of fixing plates (22) are fixedly arranged on the second semicircular plate (211), and the fixing plates (22) correspond to the buckle blocks (23).

7. A ferrite alloy seamless steel pipe for high temperature operation according to claim 6, characterized in that: A buckle ring (221) is fixedly arranged on the fixing plate (22), and the buckle ring (221) can be engaged and fixed with the buckle block (23).

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