Compression-resistant heat-preservation stainless steel pipe

Abstract

The utility model relates to the field of stainless steel pipes, in particular to a compression-resistant heat preservation stainless steel pipe which comprises a stainless steel pipe body and is used for pipeline supporting or butt joint conveying. According to the compression-resistant heat preservation stainless steel pipe, the stainless steel pipe body, the first heat preservation layer, the outer frame pipe, the first connecting block, the telescopic rod, the telescopic sleeve, the compression spring, the second connecting block, the inner frame pipe, the stainless steel inner pipe and the second heat preservation layer are arranged, and the outer frame pipe and the inner frame pipe are arranged in the stainless steel pipe body; meanwhile, a telescopic rod, a telescopic sleeve and a compression spring are arranged between the outer frame pipe and the inner frame pipe, so that when the stainless steel pipe body is subjected to external pressure, the stainless steel inner pipe is effectively prevented from being pressed and deformed by utilizing the buffering and springback capacity of the compression spring, and smooth transportation in the stainless steel inner pipe is ensured; and the first heat preservation layer and the second heat preservation layer are arranged in the stainless steel inner pipe, so that the internal overall thickness is increased, and the heat preservation performance is improved.

Description

Technical Field

[0001] The utility model relates to the field of stainless steel pipes, and particularly relates to a compression-resistant and heat-insulating stainless steel pipe. Background Technique

[0002] A stainless steel pipe is a hollow long round steel, mainly widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments, etc. and mechanical structure components. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in manufacturing mechanical parts and engineering structures.

[0003] After retrieval, a utility model stainless steel pipe with the publication number of CN212564792U includes a stainless steel pipe, an outer sleeve pipe and a sound insulation pipe. An installation groove is opened on the outer wall of the outer sleeve pipe. Anticorrosion coatings are coated on both the outer wall and the inner wall surfaces of the stainless steel pipe. An external connection layer is coated outside the anticorrosion coating on the outer wall surface of the stainless steel pipe. The stainless steel pipe is nested and installed in the sound insulation pipe. A cavity is provided in the outer sleeve pipe. The sound insulation pipe is placed in the cavity of the outer sleeve pipe, and sound-absorbing cotton is filled in the gap between the sound insulation pipe and the outer sleeve pipe. The utility model improves the corrosion resistance and sound insulation of the stainless steel pipe, and it is also convenient to install and fix the stainless steel pipe through the outer sleeve pipe.

[0004] The existing stainless steel pipes have poor compression resistance and are prone to tube body deformation under pressure, affecting normal use. Both the existing stainless steel pipes and the stainless steel pipes in the above comparison cases lack certain compression resistance and do not have a heat insulation function. When encountering external or internal pressure impacts during use, the stainless steel pipes will deform or be damaged due to the pressure. When heat insulation is required for the stainless steel pipes, heat insulation materials are added inside the stainless steel pipes before installation to achieve heat insulation of the stainless steel pipes, which makes the installation process cumbersome and troublesome.

[0005] Therefore, it is very necessary to invent a compression-resistant and heat-insulating stainless steel pipe to solve the above problems. Content of the Utility Model

[0006] The purpose of the utility model is to provide a compression-resistant and heat-insulating stainless steel pipe to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution: A compression-resistant and heat-insulating stainless steel pipe includes a stainless steel pipe body for pipeline support or butt joint transportation;

[0008] A first anticorrosion layer and a first heat insulation layer are respectively arranged outside and inside the stainless steel pipe body for heat insulation and corrosion prevention of the stainless steel pipe body;

[0009] The outer frame tube is arranged inside the stainless steel tube body. The outer frame tube is used for the compressive capacity of the stainless steel tube body. First connection blocks are fixedly installed inside the outer frame tube. An expansion rod is fixedly installed below the first connection blocks. The outer part of the expansion rod is movably connected with a telescopic sleeve. The outer part of the telescopic sleeve is movably connected with a compression spring. The lower end of the telescopic sleeve is fixedly installed with a second connection block. The lower end of the second connection block is fixedly installed with an inner frame tube;

[0010] The stainless steel inner tube is arranged inside the inner frame tube. The stainless steel inner tube and the second insulation layer are respectively arranged inside the stainless steel inner tube for heat preservation and anti-corrosion of the stainless steel inner tube;

[0011] Flanges are arranged at both ends of the stainless steel tube body for connecting between the stainless steel tube bodies.

[0012] Preferably, the first anti-corrosion layer is sleeved outside the stainless steel tube body, and the material of the first anti-corrosion layer is polyurea coating.

[0013] Preferably, the first anti-corrosion layer is adhered to the first insulation layer, and the material of the first insulation layer is ultra-fine glass wool.

[0014] Preferably, the outer sides of the first connection block and the second connection block are arranged between the outer frame tube and the inner frame tube. The compression springs are arranged between the first connection block and the second connection block, and a plurality of the compression springs are evenly distributed in a circle.

[0015] Preferably, the materials of the second insulation layer and the second anti-corrosion layer are the same as those of the first anti-corrosion layer and the first insulation layer, and the second insulation layer and the second anti-corrosion layer are attached to each other.

[0016] Preferably, an external thread is arranged outside the stainless steel tube body. One end of the stainless steel tube body is movably connected with a connecting sleeve. An internal thread is arranged on the inner surface of the connecting sleeve. A flange is fixedly installed on one side of the connecting sleeve.

[0017] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0018] 1. Through the settings of the stainless steel tube body, the first insulation layer, the outer frame tube, the first connection block, the expansion rod, the telescopic sleeve, the compression spring, the second connection block, the inner frame tube, and the stainless steel inner tube and the second insulation layer, by arranging the outer frame tube and the inner frame tube inside the stainless steel tube body, the overall compressive strength of the stainless steel tube body is improved. At the same time, an expansion rod, a telescopic sleeve and a compression spring are arranged between the outer frame tube and the inner frame tube. When the stainless steel tube body is subjected to external pressure, by using the buffering and rebounding ability of the compression spring, the stainless steel inner tube is effectively prevented from being deformed by pressure, ensuring smooth transportation inside the stainless steel inner tube. And the first insulation layer and the second insulation layer arranged inside the stainless steel inner tube increase the overall internal thickness and improve the heat preservation performance;

[0019] 2. Through the settings of the stainless steel pipe body, external threads, connecting sleeves, internal threads and flanges, the connecting sleeves and flanges can be threadedly connected through the external threads provided at both ends of the stainless steel pipe body, facilitating the butt joint of two stainless steel pipe bodies. At the same time, the advantage of setting the external threads is that flanges or other joints of different sizes can be replaced, which improves the practicability of the connection of the stainless steel pipe body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required to be used in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0021] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0022] Figure 2 is a schematic diagram of the internal structure of the stainless steel pipe body of the present utility model;

[0023] Figure 3 is a schematic diagram of the compression spring structure of the present utility model;

[0024] Figure 4 is a schematic diagram of the internal structure of the stainless steel inner pipe of the present utility model;

[0025] Figure 5 is a schematic diagram of the flange structure of the present utility model.

[0026] Description of the reference numerals:

[0027] 1. Stainless steel pipe body; 2. First anti-corrosion layer; 3. First heat insulation layer; 4. Outer frame pipe; 5. First connecting block; 6. Telescopic rod; 7. Telescopic sleeve; 8. Compression spring; 9. Second connecting block; 10. Inner frame pipe; 11. Stainless steel inner pipe; 12. Second heat insulation layer; 13. Second anti-corrosion layer; 14. External thread; 15. Connecting sleeve; 16. Internal thread; 17. Flange. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following will further introduce the present utility model in detail in conjunction with the drawings.

[0029] The present utility model provides a Figures 1-5 shown compressive heat-insulating stainless steel pipe, including a stainless steel pipe body 1 for pipe support or butt joint transportation;

[0030] The first anti-corrosion layer 2 and the first thermal insulation layer 3 are respectively arranged on the outside and inside of the stainless steel pipe body 1 for heat preservation and anti-corrosion of the stainless steel pipe body 1;

[0031] The outer frame pipe 4 is arranged inside the stainless steel pipe body 1. The outer frame pipe 4 is used for the compressive capacity of the stainless steel pipe body 1. First connecting blocks 5 are fixedly installed inside the outer frame pipe 4. A telescopic rod 6 is fixedly installed below the first connecting block 5. A telescopic sleeve 7 is movably connected to the outside of the telescopic rod 6. A compression spring 8 is movably connected to the outside of the telescopic sleeve 7. The lower end of the telescopic sleeve 7 is fixedly installed with a second connecting block 9. The lower end of the second connecting block 9 is fixedly installed with an inner frame pipe 10;

[0032] The stainless steel inner pipe 11 is arranged inside the inner frame pipe 10. The stainless steel inner pipe 11 and the second thermal insulation layer 12 are respectively arranged inside the stainless steel inner pipe 11 for heat preservation and anti-corrosion of the stainless steel inner pipe 11;

[0033] Flanges 17 are arranged at both ends of the stainless steel pipe body 1 for connection between the stainless steel pipe bodies 1. By arranging the outer frame pipe 4 and the inner frame pipe 10 inside the stainless steel pipe body 1, the compressive strength of the overall stainless steel pipe body 1 is improved. At the same time, a telescopic rod 6, a telescopic sleeve 7 and a compression spring 8 are arranged between the outer frame pipe 4 and the inner frame pipe 10. When the stainless steel pipe body 1 is subjected to external pressure, by using the buffering and rebounding ability of the compression spring 8, the stainless steel inner pipe 11 is effectively prevented from being deformed by pressure, ensuring smooth transportation inside the stainless steel inner pipe 11. And the first thermal insulation layer 3 and the second thermal insulation layer 12 arranged inside the stainless steel inner pipe 11 increase the overall internal thickness and improve the heat preservation performance.

[0034] As Figure 1 and Figure 2 shown, the first anti-corrosion layer 2 is sleeved on the outside of the stainless steel pipe body 1. The material of the first anti-corrosion layer 2 is polyurea coating. By applying the first anti-corrosion layer 2 on the outside of the stainless steel pipe body 1, the anti-corrosion and rust-proof ability of the outside of the stainless steel pipe body 1 is enhanced during daily use, and the service life of the overall stainless steel pipe body 1 is improved.

[0035] As Figure 2 shown, the first anti-corrosion layer 2 and the first thermal insulation layer 3 are pasted together. The material of the first thermal insulation layer 3 is ultra-fine glass wool. By arranging the first thermal insulation layer 3 inside the stainless steel pipe body 1, the heat preservation performance is improved and heat loss is prevented.

[0036] As Figure 2 and Figure 3 shown, the outer sides of the first connecting block 5 and the second connecting block 9 are arranged between the outer frame pipe 4 and the inner frame pipe 10. The compression spring 8 is arranged between the first connecting block 5 and the second connecting block 9. A plurality of compression springs 8 are evenly distributed in a circle. By using the cooperation between the compression spring 8, the telescopic rod 6 and the telescopic sleeve 7, when the stainless steel pipe body 1 is subjected to external pressure, the compression springs 8 inside the outer frame pipe 4 play a role in buffering and resisting pressure.

[0037] As Figure 2 and Figure 4 shown, the materials of the second heat-insulating layer 12 and the second anti-corrosion layer 13 are the same as those of the first anti-corrosion layer 2 and the first heat-insulating layer 3. The second heat-insulating layer 12 and the second anti-corrosion layer 13 are attached to each other, and it is easy to cause rust or corrosion when transporting liquid inside. By setting the second anti-corrosion layer 13 inside the stainless-steel inner pipe 11, the internal anti-corrosion and rust resistance are enhanced. Similarly, by setting the second heat-insulating layer 12 inside, the heat-insulating performance is also enhanced.

[0038] As Figure 1 and Figure 5 shown, an external thread 14 is provided on the outer surface of the stainless-steel pipe body 1. One end of the stainless-steel pipe body 1 is movably connected with a connecting sleeve 15. An internal thread 16 is provided on the inner surface of the connecting sleeve 15. A flange 17 is fixedly installed on one side of the connecting sleeve 15. Through the external thread 14 provided on the outer surfaces of both ends of the stainless-steel pipe body 1, the connecting sleeve 15 and the flange 17 can be threadedly connected, which is convenient for docking two stainless-steel pipe bodies 1. At the same time, the advantage of setting the external thread 14 is that flanges 17 or other joints of different sizes can be replaced.

[0039] The working principle of this utility model: First, tighten the connecting sleeve 15 on one side of the flange 17 on one end of the stainless-steel pipe body 1. Then, according to the length installed by the user, connect and assemble another stainless-steel pipe body 1 by using the flange 17. After that, install the stainless-steel pipe body 1 on the required equipment. At this time, after the installation is completed, liquid is transported. However, long-term liquid transportation will cause corrosion or rust of the stainless-steel inner pipe 11. By setting the second anti-corrosion layer 13 inside the stainless-steel inner pipe 11, the anti-corrosion and rust resistance inside the stainless-steel inner pipe 11 is improved. When transporting liquid, in order to ensure the temperature of the liquid, through the second heat-insulating layer 12 provided inside the stainless-steel inner pipe 11, the heat-preserving performance is achieved. When the stainless-steel pipe body 1 is exposed outdoors for a long time, similarly, in order to prevent corrosion and rust, a first anti-corrosion layer 2 is also provided on the outer layer of the stainless-steel pipe body 1 to enhance the anti-corrosion effect. When the stainless-steel pipe body 1 is subjected to external pressure, the external frame pipe 4 provided inside the stainless-steel pipe body 1 is subjected to pressure, and the internal telescopic rod 6 telescopes in the telescopic sleeve 7. During the telescopic process, the external compression spring 8 buffers the external frame pipe 4, which can effectively prevent the inner frame pipe 10 and the stainless-steel inner pipe 11 from being deformed under pressure, ensuring the smooth transportation inside the stainless-steel inner pipe 11. Just like this, the use process of this anti-pressure and heat-insulating stainless-steel pipe is completed.

[0040] Only some exemplary embodiments of the present utility model have been described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A pressure-resistant and heat-insulating stainless steel pipe, characterized in that: It comprises a stainless steel pipe body (1) used for pipeline support or butt-joint transportation; The first anti-corrosion layer (2) and the first thermal insulation layer (3) are respectively arranged on the outside and inside of the stainless steel pipe body (1) and are used for thermal insulation and corrosion prevention of the stainless steel pipe body (1); The outer frame tube (4) is arranged inside the stainless steel tube body (1), and the outer frame tube (4) is used to improve the pressure resistance of the stainless steel tube body (1). A first connection block (5) is fixedly installed inside the outer frame tube (4), a telescopic rod (6) is fixedly installed below the first connection block (5), the outside of the telescopic rod (6) is movably connected to a telescopic sleeve (7), the outside of the telescopic sleeve (7) is movably connected to a compression spring (8), the lower end of the telescopic sleeve (7) is fixedly installed with a second connection block (9), and the lower end of the second connection block (9) is fixedly installed with an inner frame tube (10); The stainless steel inner tube (11) is arranged inside the inner frame tube (10), and the stainless steel inner tube (11) and the second thermal insulation layer (12) are respectively arranged inside the stainless steel inner tube (11) to keep the stainless steel inner tube (11) warm and prevent corrosion; Flanges (17) are arranged at both ends of the stainless steel pipe body (1) and are used to connect the stainless steel pipe bodies (1).

2. The pressure-resistant and heat-insulating stainless steel pipe according to claim 1, characterized in that: The first anti-corrosion layer (2) is sleeved on the outside of the stainless steel pipe body (1), and the material of the first anti-corrosion layer (2) is polyurea coating.

3. The pressure-resistant and heat-insulating stainless steel pipe according to claim 1, characterized in that: The first anti-corrosion layer (2) and the first thermal insulation layer (3) are bonded to each other, and the material of the first thermal insulation layer (3) is ultra-fine glass.

4. The pressure-resistant and heat-insulating stainless steel pipe according to claim 1, characterized in that: The first connecting block (5) and the second connecting block (9) are arranged outside between the outer frame tube (4) and the inner frame tube (10), the compression spring (8) is arranged between the first connecting block (5) and the second connecting block (9), and a plurality of the compression springs (8) are evenly distributed around the circumference.

5. The pressure-resistant and heat-insulating stainless steel pipe according to claim 1, characterized in that: The material of the second thermal insulation layer (12) and the second anti-corrosion layer (13) is the same as that of the first anti-corrosion layer (2) and the first thermal insulation layer (3), and the second thermal insulation layer (12) and the second anti-corrosion layer (13) are in contact with each other.

6. The pressure-resistant and heat-insulating stainless steel pipe according to claim 1, characterized in that: The stainless steel tube body (1) is provided with an external thread (14) on its exterior, a connecting sleeve (15) is movably connected to one end of the stainless steel tube body (1), an internal thread (16) is provided on the inner surface of the connecting sleeve (15), and a flange (17) is fixedly mounted on one side of the connecting sleeve (15).

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