High-precision seamless steel tube

Abstract

The utility model discloses a high-precision seamless steel tube, which relates to the technical field of seamless steel tubes and comprises a first steel tube, a second steel tube assembly is arranged in the first steel tube, and a protective tube assembly is sleeved on the outer side of the first steel tube. The steel pipe is arranged in a double-layer mode, the first steel pipe body and the second steel pipe body are fixedly connected through the supporting plates and the partition plates, the cavity between the first steel pipe body and the second steel pipe body is divided into the multiple cavities through the supporting plates and the partition plates, and meanwhile the through grooves are formed in the supporting plates. The through groove is also divided into a plurality of cavities by the partition plates, the heat conductivity coefficient of air in the cavities is very low, and the supporting plate and the partition plates are made of heat insulation materials, so that the heat loss in the steel pipe during transmission can be greatly reduced, and the transmission efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of seamless steel pipes, in particular to a high-precision seamless steel pipe. Background Art

[0002] The thermal network, also known as the thermal pipeline, is a heating pipeline that starts from the boiler room, direct-fired machine room, heating center, etc., and leads from the heat source to the thermal entrance of the building. The thermal network generally uses high-precision seamless steel pipes. The seamless steel pipe has a hollow cross-section. Compared with solid steel such as round steel, the steel pipe has a lighter weight when the bending and torsional strength are the same. It is an economical cross-section steel and is widely used in the manufacture of structural parts and mechanical parts.

[0003] However, the existing high-precision seamless steel pipes have poor thermal insulation effects, and heat energy will be seriously lost during the transmission process, affecting the transmission efficiency. At the same time, the existing high-precision seamless steel pipes are prone to wear and deformation, affecting their service life.

[0004] Therefore, it is necessary to invent a high-precision seamless steel pipe to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a high-precision seamless steel pipe to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a high-precision seamless steel pipe, comprising a first steel pipe, a second steel pipe assembly is arranged inside the first steel pipe, and a protective pipe assembly is sleeved on the outer side of the first steel pipe;

[0007] The second steel pipe assembly includes a second steel pipe body, and an annular cavity is formed between the second steel pipe body and the first steel pipe;

[0008] The protection tube assembly comprises a protection tube body, and the inner side wall of the protection tube body is bonded and connected to the outer side wall of the first steel tube.

[0009] Preferably, a plurality of support plates are fixedly provided on the outer side wall of the second steel pipe assembly, and the plurality of support plates are distributed in a ring array.

[0010] Preferably, a through groove is provided on the front side of the support plate, and the through groove is arranged in an arc shape.

[0011] Preferably, a plurality of partition plates are fixedly provided on the outer side wall of the second steel pipe body, and the plurality of partition plates are distributed at equal intervals.

[0012] Preferably, the partition plate is arranged in a ring shape, and the partition plate and the support plate are integrally formed.

[0013] Preferably, the inner side wall of the protection tube body is provided with a plurality of straight grooves, and the plurality of straight grooves are distributed in a ring array.

[0014] Preferably, an elastic strip is fixedly provided inside the straight groove, and the inner side wall of the elastic strip is bonded and connected to the outer side wall of the first steel pipe.

[0015] Technical effects and advantages of the utility model:

[0016] 1. The utility model adopts the double-layer setting of steel pipe, and the first steel pipe and the second steel pipe body are fixedly connected by multiple support plates and partition plates, and the multiple support plates and partition plates divide the cavity between the first steel pipe and the second steel pipe body into multiple cavities. At the same time, the support plate is provided with a through groove, and the through groove is also divided into multiple cavities by the partition plate. The thermal conductivity of the air in the cavity is very low, and the support plate and the partition plate are made of heat-insulating materials, so that the heat loss inside the steel pipe during transmission can be greatly reduced, and the transmission efficiency can be improved;

[0017] 2. The utility model sets a protective tube assembly. The protective tube body is made of hard rubber, which has good wear resistance and can protect the steel tube from wear. At the same time, the setting of multiple elastic strips, which are made of elastic rubber, can play a good buffering effect and prevent the steel tube from being deformed by collision, thereby increasing the service life of the steel tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model.

[0019] Figure 2 It is a schematic diagram of the second steel pipe assembly structure of the utility model.

[0020] Figure 3 This is a schematic diagram of the protective tube assembly structure of the utility model.

[0021] In the figure: 1, first steel pipe; 2, second steel pipe assembly; 3, protection pipe assembly; 201, second steel pipe body; 202, support plate; 203, partition plate; 204, through groove; 301, protection pipe body; 302, straight groove; 303, elastic strip. 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 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.

[0023] The utility model provides Figure 1-3A high-precision seamless steel pipe shown includes a first steel pipe 1, a second steel pipe assembly 2 is arranged inside the first steel pipe 1, and a protective pipe assembly 3 is sleeved on the outer side of the first steel pipe 1.

[0024] Furthermore, the second steel pipe assembly 2 includes a second steel pipe body 201. The inner wall of the second steel pipe body 201 is coated with a waterproof coating during actual use to prevent erosion, and an annular cavity is formed between the second steel pipe body 201 and the first steel pipe 1. A plurality of support plates 202 are fixedly provided on the outer wall of the second steel pipe assembly 2, and the plurality of support plates 202 are distributed in an annular array. The two sides of the support plate 202 are symmetrically inclined so that the cross-section of the entire support plate 202 forms a triangle, thereby improving the stability of the support. A through groove 204 is provided on the front side of the support plate 202, and the through groove 204 is arranged in an arc shape. A plurality of partition plates 203 are fixedly provided on the outer wall of the second steel pipe body 201, and the plurality of partition plates 203 are equidistant. Distribution, the partition plate 203 is arranged in a ring shape, and the partition plate 203 and the support plate 202 are integrally formed, through the double-layer arrangement of the steel pipe, and the first steel pipe 1 and the second steel pipe body 201 are fixedly connected by multiple support plates 202 and the partition plate 203, and the multiple support plates 202 and the partition plate 203 divide the cavity between the first steel pipe 1 and the second steel pipe body 201 into multiple cavities, and at the same time, a through groove 204 is opened on the support plate 202, and the through groove 204 is also divided into multiple cavities by the partition plate 203, the thermal conductivity of the air in the cavity is very low, and the support plate 202 and the partition plate 203 are made of heat-insulating material, which can greatly reduce the heat loss inside the steel pipe during transmission and improve the transmission efficiency.

[0025] Secondly, the protection tube assembly 3 includes a protection tube body 301, and the inner wall of the protection tube body 301 is bonded to the outer wall of the first steel tube 1, and the inner wall of the protection tube body 301 is provided with a plurality of straight grooves 302, and the plurality of straight grooves 302 are distributed in a circular array, and an elastic strip 303 is fixedly arranged inside the straight groove 302, and the inner wall of the elastic strip 303 is bonded to the outer wall of the first steel tube 1. Through the setting of the protection tube assembly 3, the protection tube body 301 is made of hard rubber, which has a good wear-resistant effect and can protect the steel tube from wear. At the same time, the setting of multiple elastic strips 303, the elastic strips 303 are made of elastic rubber, which can play a good buffering effect and prevent the steel tube from being deformed by collision, thereby improving the service life of the steel tube.

[0026] Working principle of this utility model:

[0027] When in use, the steel pipe is double-layered, and the first steel pipe 1 and the second steel pipe body 201 are fixedly connected by multiple support plates 202 and partition plates 203. The multiple support plates 202 and partition plates 203 divide the cavity between the first steel pipe 1 and the second steel pipe body 201 into multiple cavities. At the same time, a through groove 204 is opened on the support plate 202, and the through groove 204 is also divided into multiple cavities by the partition plate 203. The thermal conductivity of the air in the cavity is very low, and the support plate 202 and the partition plate 203 are made of heat-insulating material, which can greatly reduce the heat loss inside the steel pipe during transmission and improve the transmission efficiency. The protection pipe assembly 3 is set, and the protection pipe body 301 is made of hard rubber, which has a good wear-resistant effect and can protect the steel pipe from wear. At the same time, the setting of multiple elastic strips 303, the elastic strips 303 are made of elastic rubber, which can play a good buffering effect and prevent the steel pipe from being deformed by collision, thereby increasing the service life of the steel pipe.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision seamless steel pipe, characterized in that: It comprises a first steel pipe (1), a second steel pipe assembly (2) is arranged inside the first steel pipe (1), and a protective pipe assembly (3) is sleeved on the outside of the first steel pipe (1); The second steel pipe assembly (2) comprises a second steel pipe body (201), and an annular cavity is formed between the second steel pipe body (201) and the first steel pipe (1); The protection tube assembly (3) comprises a protection tube body (301), and the inner side wall of the protection tube body (301) is bonded to the outer side wall of the first steel tube (1); The inner side wall of the protection tube body (301) is provided with a plurality of straight grooves (302), and the plurality of straight grooves (302) are distributed in a ring array; An elastic strip (303) is fixedly arranged inside the straight groove (302), and the inner side wall of the elastic strip (303) is bonded and connected to the outer side wall of the first steel pipe (1).

2. A high-precision seamless steel pipe according to claim 1, characterized in that: A plurality of support plates (202) are fixedly arranged on the outer side wall of the second steel pipe assembly (2), and the plurality of support plates (202) are distributed in a ring array.

3. A high-precision seamless steel pipe according to claim 2, characterized in that: A through slot (204) is provided on the front side of the support plate (202), and the through slot (204) is arranged in an arc shape.

4. A high-precision seamless steel pipe according to claim 3, characterized in that: A plurality of partition plates (203) are fixedly arranged on the outer side wall of the second steel pipe body (201), and the plurality of partition plates (203) are distributed at equal intervals.

5. A high-precision seamless steel pipe according to claim 4, characterized in that: The partition plate (203) is arranged in a ring shape, and the partition plate (203) and the support plate (202) are integrally formed.

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