Corrosion-resistant seamless pipe for chemical equipment

Abstract

According to the technical scheme, the corrosion-resistant seamless pipe for the chemical equipment comprises a pipe body A and a pipe body B. The outer surface of the pipe body A and the outer surface of the pipe body B are each provided with a clamping groove, a connecting hoop B is installed in the clamping groove in the outer surface of the pipe body A, a connecting hoop A is installed in the clamping groove in the outer surface of the pipe body B, and the outer surface of the pipe body B is provided with a clamping groove. Sealing gaskets are installed at the positions, located in the gap between the connecting hoop A and the connecting hoop B, of the outer surfaces of the clamping grooves in the two sides, a connecting rod is installed on one side of the connecting hoop B, the connecting rod is sleeved with the connecting hoop A, and a connecting nut is screwed to the position, close to the tail end, of the outer surface of the connecting rod. The corrosion-resistant seamless tube for the chemical equipment solves the problems that a corrosion-resistant layer is easy to damage when a tube body of an existing seamless tube is connected, the seamless tube is easy to rust due to the influence of acidic or alkaline steam in an operating environment of the chemical equipment, and the service life of the seamless tube is influenced, reduces the corrosion probability of the seamless tube, and improves the service life of the seamless tube. Therefore, the service life of the seamless tube is ensured.

Description

Technical Field

[0001] This utility model relates to the field of seamless steel pipe production technology, specifically to a corrosion-resistant seamless pipe for chemical equipment. Background Technology

[0002] Seamless steel pipe is a type of steel pipe manufactured with precision technology. Its characteristic is that there are no obvious seams. As an important industrial pipe material, it has a wide range of applications in various fields. It has advantages such as high strength, pressure resistance, and corrosion resistance, making it one of the preferred pipe materials in many engineering projects and applications. It is suitable for various industrial fields with strict requirements. Its manufacturing process is complex and requires strict control of each link in the production process to ensure that the product quality and performance meet the standard requirements.

[0003] The corrosion-resistant layer of existing seamless steel pipes is easily damaged during connection. In the operating environment of chemical equipment, they are easily corroded by acidic or alkaline water vapor, which affects the service life of the seamless pipe. Therefore, we propose a corrosion-resistant seamless pipe for chemical equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a corrosion-resistant seamless pipe for chemical equipment, which has the effect of protecting the connection of the seamless pipe, so as to solve the problem that the corrosion-resistant layer of the existing seamless steel pipe is easily damaged during connection, and is easily affected by acidic or alkaline water vapor in the chemical equipment operating environment, thus affecting the service life of the seamless pipe.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrosion-resistant seamless pipe for chemical equipment, comprising a pipe body A and a pipe body B, wherein both the outer surfaces of the pipe body A and the pipe body B are provided with clamping grooves, a connecting clamp B is installed inside the clamping groove on the outer surface of the pipe body A, a connecting clamp A is installed inside the clamping groove on the outer surface of the pipe body B, and sealing gaskets are installed on the outer surfaces of the clamping grooves on both sides at the gap between the connecting clamp A and the connecting clamp B.

[0006] Preferably, a connecting rod is installed on one side of the connecting clamp B, the connecting rod is sleeved inside the connecting clamp A, and a connecting nut is screwed onto the outer surface of the connecting rod near its end.

[0007] Preferably, both the connecting clamp A and the connecting clamp B are equipped with fixing bolts, and fixing nuts are installed on the outer surface of the fixing bolts near their ends.

[0008] Preferably, both pipe body A and pipe body B are provided with heat insulation grooves inside, and heat insulation cotton is installed inside the heat insulation grooves.

[0009] Preferably, a support strip is installed inside the heat insulation groove, and support grooves are provided at the top and bottom of the heat insulation groove at the position of the support strip, and the support strip is spirally arranged.

[0010] Preferably, a conical platform is provided on one side of the tube body A near the inner surface, and a conical groove is provided on the side of the tube body B near the conical platform. The conical platform is fitted inside the conical groove, and the conical platform and the conical groove fit together.

[0011] Preferably, a sealing groove A is provided near the top of the conical groove, and a sealing strip A is installed inside the sealing groove A.

[0012] Preferably, a sealing groove B is provided near the bottom of the conical groove, and a sealing strip B is installed inside the sealing groove B.

[0013] Preferably, both tube A and tube B have a corrosion-resistant coating on their outer surfaces.

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

[0015] 1. This utility model achieves a protective connection for seamless pipes by setting clamping grooves, sealing gaskets, connecting clamps A and B. Clamping grooves are provided on the outer surfaces of both pipe body A and pipe body B. Connecting clamp B is set inside the clamping groove on the outer surface of pipe body A, and connecting clamp A is set inside the clamping groove on the outer surface of pipe body B. Sealing gaskets are set on the outer surfaces of the clamping grooves on both sides at the gap between connecting clamps A and B. This solves the problem that the corrosion-resistant layer of existing seamless steel pipes is easily damaged during connection, and they are easily corroded by acidic or alkaline water vapor in the chemical equipment operating environment, affecting the service life of the seamless pipes. This invention reduces the probability of corrosion of seamless steel pipes, thereby ensuring the service life of seamless pipes.

[0016] 2. This utility model achieves a highly efficient sealing effect at the connection point by setting a conical platform, a conical groove, sealing strip A, and sealing strip B. A conical platform is provided on one side of pipe body A near the inner surface, and a conical groove is provided on the side of pipe body B near the conical platform. The conical platform is fitted inside the conical groove, and the conical platform and the conical groove fit together. A sealing groove A is provided near the top of the conical groove, and sealing strip A is provided inside sealing groove A. A sealing groove B is provided near the bottom of the conical groove, and sealing strip B is provided inside sealing groove B. This solves the problem of poor sealing effect at the existing pipe connection points, which easily leads to fluid leakage during use and affects the safety of fluid transportation. It reduces the probability of fluid leakage and thus ensures the safety of fluid transportation.

[0017] 3. This utility model achieves the effect of isolating fluid heat by setting up heat insulation grooves and heat insulation cotton. Heat insulation grooves are set inside both pipe body A and pipe body B, and heat insulation cotton is set inside the heat insulation grooves. This solves the problem that the heat of the fluid is easily conducted to the outside of the pipe during the use of existing seamless pipes, which can easily cause the ambient temperature to rise and affect the safety of chemical equipment. It reduces the probability of heat conduction of the fluid, thereby improving the normal use of chemical equipment. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0019] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 3 for Figure 2 A magnified structural diagram of A;

[0021] Figure 4 for Figure 2 A magnified structural diagram of B in the diagram;

[0022] Figure 5 for Figure 2 A magnified structural diagram of B in the diagram;

[0023] Figure 6 This is a side view of the tube body B of this utility model.

[0024] Reference numerals: 1. Pipe body A; 2. Fixing nut; 3. Pipe body B; 4. Connecting clamp A; 5. Connecting rod; 6. Connecting clamp B; 7. Fixing bolt; 8. Sealing gasket; 9. Clamping groove; 10. Connecting nut; 11. Sealing groove A; 12. Sealing strip A; 13. Sealing groove B; 14. Conical groove; 15. Sealing strip B; 16. Conical platform; 17. Support groove; 18. Thermal insulation cotton; 19. Support strip; 20. Thermal insulation groove; 21. Corrosion-resistant coating. Detailed Implementation

[0025] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] like Figure 1-3As shown, to achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant seamless pipe for chemical equipment, comprising a pipe body A1 and a pipe body B3. Both pipe bodies A1 and B3 have clamping grooves 9 on their outer surfaces. A connecting clamp B6 is installed inside the clamping groove 9 on the outer surface of pipe body A1, and a connecting clamp A4 is installed inside the clamping groove 9 on the outer surface of pipe body B3. Sealing gaskets 8 are installed on the outer surfaces of the clamping grooves 9 on both sides at the gap between the connecting clamp A4 and the connecting clamp B6. A connecting rod 5 is installed on one side of the connecting clamp B6, and the connecting rod 5 is sleeved inside the connecting clamp A4. A connecting nut 10 is screwed onto the outer surface of the connecting rod 5 near its end. Fixing bolts 7 are installed inside both the connecting clamp A4 and the connecting clamp B6. Fixing nuts 2 are installed on the outer surface of the fixing bolts 7 near their ends. The fixing bolts 7 and the fixing nuts 2 are used to fix the connecting clamp A4 and the connecting clamp B6. Both pipe bodies A1 and B3 have a corrosion-resistant coating 21 on their outer surfaces.

[0028] like Figure 2 and Figure 4 As shown, a conical platform 16 is provided on one side of the pipe body A1 near the inner surface, and a conical groove 14 is provided on the side of the pipe body B3 near the conical platform 16. The conical platform 16 is fitted into the conical groove 14, and the conical platform 16 and the conical groove 14 fit together. A sealing groove A11 is provided near the top of the conical groove 14, and a sealing strip A12 is installed inside the sealing groove A11. A sealing groove B13 is provided near the bottom of the conical groove 14, and a sealing strip B15 is installed inside the sealing groove B13. The connection is sealed by the sealing strip A12 and the sealing strip B15.

[0029] The working principle of a corrosion-resistant seamless pipe for chemical equipment based on Embodiment 1 is as follows: After the present invention is installed, the connecting clamp B6 is installed on the outer surface of the pipe body A1 by fixing bolt 7, and the connecting clamp A4 is installed on the outer surface of the pipe body B3 by fixing bolt 7. Then, the conical platform 16 on one side of the pipe body A1 is clamped into the conical groove 14 on one side of the pipe body B3, and the connecting rod 5 is inserted into the connecting clamp A4. The connecting rod 5 can be locked by the connecting nut 10, thereby connecting the connecting clamp A4 and the connecting clamp B6. The connection is sealed by the sealing strip A12 and the sealing strip B15, thereby ensuring the normal transportation of fluid. Thus, the working process of the equipment is completed.

[0030] Example 2

[0031] like Figure 2 , Figure 5 and Figure 6As shown, the present invention proposes a corrosion-resistant seamless pipe for chemical equipment. Compared with Embodiment 1, this embodiment further includes: heat insulation grooves 20 are provided inside both pipe body A1 and pipe body B3, heat insulation cotton 18 is installed inside the heat insulation grooves 20, and support bars 19 are installed inside the heat insulation grooves 20. Support grooves 17 are provided at the top and bottom of the heat insulation grooves 20 at the positions of the support bars 19. The support bars 19 are spirally arranged. The support performance of pipe body A1 and pipe body B3 is improved by the arrangement of the support bars 19.

[0032] In this embodiment, during use, the insulation cotton 18 and insulation groove 20 are used to insulate the inside of the pipe body A1 and the pipe body B3, reducing the temperature conductivity of the fluid and thus providing thermal insulation protection for the environment. The support strip 19 is used to support the pipe body A1 and the pipe body B3, reducing the probability of deformation of the pipe body A1 and the pipe body B3, thereby ensuring the normal transportation of the fluid.

[0033] The above specific embodiments are merely several preferred embodiments of this utility model. Based on the technical solution of this utility model and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A corrosion resistant seamless pipe for chemical plants comprising a pipe body A (1) and a pipe body B (3), characterized in that: The pipe body A (1) and pipe body B (3) outer surface are provided with clamping groove (9), the pipe body A (1) outer surface clamping groove (9) inside mounting has connecting hoop B (6), the pipe body B (3) outer surface clamping groove (9) inside mounting has connecting hoop A (4), both sides the clamping groove (9) outer surface is located at the gap position between connecting hoop A (4) and connecting hoop B (6) installation sealing pad (8).

2. A corrosion resistant seamless pipe for chemical plants as claimed in claim 1, wherein: The connecting hoop B (6) one side is installed with connecting rod (5), the connecting rod (5) is sleeved in the connecting hoop A (4) inside, the connecting rod (5) outer surface near the end is screwed connecting nut (10).

3. A corrosion resistant seamless pipe for chemical plant as claimed in claim 1 wherein: The connecting hoop A (4) and connecting hoop B (6) inside are installed with fixed bolt (7), the fixed bolt (7) outer surface near the end is installed with fixed nut (2).

4. A corrosion resistant seamless pipe for chemical plants as claimed in claim 1, wherein: The pipe body A (1) and pipe body B (3) inside are provided with heat insulation groove (20), the heat insulation groove (20) inside is installed with heat insulation cotton (18).

5. A corrosion resistant seamless pipe for chemical plant as claimed in claim 4 wherein: The heat insulation groove (20) inside is installed with support strip (19), the heat insulation groove (20) inner top and inner bottom are provided with support groove (17) at support strip (19) position, the support strip (19) is spirally arranged.

6. A corrosion resistant seamless pipe for chemical plant as claimed in claim 1, wherein: The pipe body A (1) one side near the inner surface is provided with conical table (16), the pipe body B (3) is provided with conical groove (14) near conical table (16) side, the conical table (16) is clamped in the conical groove (14) inside, the conical table (16) and conical groove (14) are matched.

7. A corrosion resistant seamless pipe for chemical plant as claimed in claim 6 wherein: The conical groove (14) is provided with sealing groove A (11) near the top inside, the sealing groove A (11) is installed with sealing strip A (12) inside.

8. A corrosion resistant seamless pipe for chemical plant as claimed in claim 7, wherein: The conical groove (14) is provided with sealing groove B (13) near the bottom inside, the sealing groove B (13) is installed with sealing strip B (15) inside.

9. A corrosion resistant seamless pipe for chemical plant as claimed in claim 1 wherein: The pipe body A (1) and pipe body B (3) outer surface are provided with corrosion-resistant coating (21).

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