Seamless steel tube for high-pressure boiler

Abstract

The utility model discloses a seamless steel tube for a high-pressure boiler, which comprises a tube body, reinforcing ribs which are arranged in an annular array around the circle center are fixedly connected on the tube body, reinforcing plates are fixedly connected at two ends of the reinforcing ribs, six reinforcing plates are fixedly connected with first fastening rings, and the other six reinforcing plates are fixedly connected with second fastening rings. The first fastening ring and the second fastening ring are provided with threaded holes, the threaded hole of the second fastening ring is in threaded connection with a bolt, the first fastening ring is provided with a threaded groove, the end, away from the pipe body, of the second fastening ring is fixedly connected with a threaded column, anti-rust paint is arranged on the outer wall of the pipe body, and the outer end of the anti-rust paint is wrapped with a polyurethane heat preservation layer. The heat dissipation pipe has the advantages that connection between the pipe bodies is more stable and fixed, the risk that the connecting positions are exposed outside is avoided, the heat dissipation pipe is not prone to being corroded and damaged, and equipment operation is more stable.

Description

Technical Field

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

[0002] In the known technical field, seamless steel pipe is a round, square or rectangular steel with a hollow cross-section and no seams around it. Seamless steel pipe is generally made by perforating steel ingots or solid tube blanks into rough tubes, and then hot rolling, cold rolling or cold drawing.

[0003] Existing common seamless steel pipes for high-pressure boilers are generally connected by joint welding. The welded interfaces are exposed to the outside for a long time and are easily corroded and damaged, resulting in unstable connection and affecting equipment operation. Utility Model Content

[0004] The utility model aims to provide a seamless steel tube for a high-pressure boiler to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a seamless steel pipe for a high-pressure boiler, comprising a pipe body, to which reinforcing ribs arranged in a circular array with a center of a circle are fixedly connected, reinforcing plates are fixedly connected at both ends of the reinforcing ribs, six of the reinforcing plates are fixedly connected with a first fastening ring, and another six of the reinforcing plates are fixedly connected with a second fastening ring, the first fastening ring and the second fastening ring are provided with threaded holes, the threaded holes of the second fastening ring are threadedly connected with bolts, the first fastening ring is provided with a threaded groove, and the second fastening ring is fixedly connected with a threaded column at one end away from the pipe body.

[0006] Preferably, the outer wall of the tube body is provided with anti-rust paint.

[0007] Preferably, the outer end of the anti-rust paint is wrapped with a polyurethane insulation layer.

[0008] Preferably, the outer wall of the polyurethane thermal insulation layer is provided with a plurality of groups of heat dissipation holes.

[0009] Preferably, the inner wall of the tube body is provided with a galvanized coating.

[0010] Compared with the prior art, the beneficial effects of the utility model are as follows: one group of tube bodies is threadedly connected with the threaded groove arranged in the first fastening ring on the tube body of another group through the threaded column on the second fastening ring, and then the bolts on the second fastening ring are threadedly connected with the threaded holes of the first fastening ring on the other group of tube bodies, and multiple groups of bolts lock the two groups of seamless tubes through the threaded holes, and the reinforcing ridges greatly improve the structural strength of the circumference of the seamless tubes; the reinforcing ridges cooperate with the reinforcing plates to improve the supporting force of both ends of the steel tube, the anti-rust layer can extend the service life of the tube body in a humid environment, and the polyurethane insulation layer greatly improves the heat transfer efficiency of the steel tube, and at the same time, multiple groups of heat dissipation holes can dissipate excess heat from the tube body, making the connection between the tube bodies more stable and fixed, avoiding the risk of the connection being exposed to the outside, not susceptible to corrosion damage, and making the equipment operation more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a schematic diagram of the structure of the reinforced rib of the utility model;

[0013] Figure 3 This is a schematic diagram of the new structure of the utility tube body;

[0014] Figure 4 It is a structural schematic diagram of the second fastening ring of the utility model.

[0015] In the figure: 1. pipe body; 2. reinforcing rib; 3. reinforcing plate; 4. first fastening ring; 5. second fastening ring; 6. threaded hole; 7. bolt; 8. threaded groove; 9. threaded column; 10. anti-rust paint; 11. polyurethane insulation layer; 12. heat dissipation hole; 13. galvanized coating. DETAILED DESCRIPTION

[0016] 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.

[0017] See also Figure 1-4The utility model provides a technical solution: a seamless steel pipe for a high-pressure boiler, comprising a pipe body 1, on which are fixedly connected reinforcing ribs 2 arranged in a circular array with a center circle, reinforcing plates 3 are fixedly connected at both ends of the reinforcing ribs 2, six of which are fixedly connected with a first fastening ring 4, and another six of which are fixedly connected with a second fastening ring 5, the first fastening ring 4 and the second fastening ring 5 are provided with threaded holes 6, the threaded holes 6 of the second fastening ring 5 are threadedly connected with bolts 7, the first fastening ring 4 is provided with a threaded groove 8, and the second fastening ring 5 is fixedly connected with a threaded column 9 at one end away from the pipe body 1.

[0018] Furthermore, the outer wall of the tube body 1 is provided with an anti-rust paint 10, and the anti-rust layer can extend the service life of the tube body 1 in a humid environment.

[0019] Furthermore, the outer end of the anti-rust paint 10 is wrapped with a polyurethane insulation layer 11, and the polyurethane insulation layer 11 greatly improves the heat transfer efficiency of the steel pipe.

[0020] Furthermore, the outer wall of the polyurethane heat-insulating layer 11 is provided with a plurality of heat-dissipating holes 12 , and the plurality of heat-dissipating holes 12 can dissipate the excess heat of the pipe body 1 .

[0021] Furthermore, the inner wall of the pipe body 1 is provided with a galvanized coating 13 to prevent the pipe body 1 from overheating and causing the polyurethane insulation layer 11 to melt.

[0022] Specifically, when using the utility model, when it is necessary to connect multiple groups of pipe bodies 1, first, one group of pipe bodies 1 is threadedly connected to the threaded groove 8 set in the first fastening ring 4 on the other group of pipe bodies 1 through the threaded column 9 on the second fastening ring 5, and then the bolt 7 on the second fastening ring 5 is threadedly connected to the threaded hole 6 of the first fastening ring 4 on the other group of pipe bodies 1. Multiple groups of bolts 7 lock the two groups of seamless pipes through the threaded holes 6. The reinforcing ribs 2 greatly improve the structural strength of the circumference of the seamless pipe; the reinforcing ribs 2 cooperate with the reinforcing plates 3 to improve the supporting force at both ends of the steel pipe. The anti-rust layer can extend the service life of the pipe body 1 in a humid environment. The polyurethane insulation layer 11 greatly improves the heat transfer efficiency of the steel pipe. At the same time, multiple groups of heat dissipation holes 12 can dissipate excess heat of the pipe body 1.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seamless steel tube for a high-pressure boiler, comprising a tube body (1), characterized in that: The tube body (1) is fixedly connected with reinforcing ribs (2) arranged in a circular array with a center, and reinforcing plates (3) are fixedly connected to both ends of the reinforcing ribs (2), six of which are fixedly connected with a first fastening ring (4), and another six of which are fixedly connected with a second fastening ring (5), the first fastening ring (4) and the second fastening ring (5) are provided with threaded holes (6), the threaded holes (6) of the second fastening ring (5) are threadedly connected with bolts (7), the first fastening ring (4) is provided with a threaded groove (8), and the second fastening ring (5) is fixedly connected with a threaded column (9) at one end away from the tube body (1).

2. A seamless steel tube for high pressure boiler according to claim 1, characterized in that: The outer wall of the tube body (1) is provided with anti-rust paint (10).

3. A seamless steel tube for high pressure boiler according to claim 2, characterized in that: The outer end of the anti-rust paint (10) is wrapped with a polyurethane insulation layer (11).

4. A seamless steel tube for high pressure boiler according to claim 3, characterized in that: The outer wall of the polyurethane thermal insulation layer (11) is provided with a plurality of groups of heat dissipation holes (12).

5. The seamless steel tube for high pressure boiler according to claim 1, characterized in that: The inner wall of the tube body (1) is provided with a galvanized coating (13).

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