Corrosion-resistant stainless steel pipe

Abstract

The utility model relates to the technical field of steel pipes, and discloses a corrosion-resistant stainless steel pipe, a connecting assembly comprises a ceramic ring, a sealing ring A fixedly arranged on the left side of the ceramic ring, a sealing ring B fixedly arranged on the left side of a steel pipe B, a sealing sleeve A and a sealing sleeve B. The left end face of the ceramic ring and the left end face of the steel pipe B are arranged in a protruding arc shape. The sealing ring A and the sealing ring B are inserted into the sealing groove A and the sealing groove B correspondingly to be in abutting connection with the sealing sleeve A and the sealing sleeve B. The left end face and the right end face of the ceramic ring are connected with the right end face of the steel pipe A and the left end face of the steel pipe B in an attached mode correspondingly. The stainless steel pipe joint has the beneficial effect of preventing liquid from permeating and remaining at the joint, and solves the problems that in the process that the stainless steel pipe transports acidic or alkaline liquid, part of liquid may remain at the joint of the stainless steel pipe, after a long time, the joint of the stainless steel pipe is easily corroded, and chemical liquid leaks.

Description

Technical Field

[0001] This utility model relates to the field of steel pipe technology, specifically to a corrosion-resistant stainless steel pipe. Background Technology

[0002] Stainless steel pipe is a hollow, long tube made from stainless steel through processes such as rolling, welding, or cold drawing. It is widely used in industrial pipelines for petroleum, chemical, medical, food, light industry, and machinery, as well as in mechanical structural components. Furthermore, it is lighter in weight while maintaining the same bending and torsional strength, making it widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used in furniture and kitchenware.

[0003] Stainless steel pipes have a wide range of applications, and their use in various environments is complex and diverse. Some stainless steel pipes are used to transport chemical liquids. During the transportation of highly acidic or alkaline liquids, some liquid may remain at the joints of the stainless steel pipes. Over time, this can easily lead to corrosion at the joints, resulting in chemical liquid leaks. Utility Model Content

[0004] The purpose of this invention is to provide a corrosion-resistant stainless steel pipe to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a corrosion-resistant stainless steel pipe, comprising a steel pipe A, a steel pipe B located to the right of the steel pipe A, the steel pipe A and the steel pipe B being fixedly connected by a fixing component, a connecting component being provided between the steel pipe A and the steel pipe B, the connecting component comprising a ceramic ring, a sealing ring A fixedly disposed to the left of the ceramic ring, a sealing ring B fixedly disposed to the left of the steel pipe B, a sealing sleeve A and a sealing sleeve B, the left end faces of the ceramic ring and the steel pipe B being convex arc-shaped, the right end faces of the steel pipe A and the ceramic ring being concave arc-shaped, a sealing groove A and a sealing groove B being respectively formed on the right end faces of the steel pipe A and the ceramic ring, the sealing sleeve A and the sealing sleeve B being respectively located inside the sealing groove A and the sealing groove B, the sealing ring A and the sealing ring B being respectively inserted into the sealing groove A and the sealing groove B and abutting against the sealing sleeve A and the sealing sleeve B, the left and right end faces of the ceramic ring being respectively fitted and connected to the right end face of the steel pipe A and the left end face of the steel pipe B.

[0006] Preferably, the connecting assembly further includes a sealing sleeve C and a clamp fitted on the outside of the sealing sleeve C. The sealing sleeve C is fitted on the outside of the ceramic ring, steel pipe A and steel pipe B, and the sealing sleeve C is fixedly connected to the ceramic ring, steel pipe A and steel pipe B by the clamp.

[0007] Preferably, the fixing assembly includes flanges A and B respectively fixedly disposed on the outside of steel pipe A and steel pipe B, a number of screws and nuts, flanges A and B respectively located on the left and right sides of sealing sleeve C, and a number of through holes are provided on flanges A and B. After the screws pass through the through holes, the nuts are screwed into the screws and fixedly connected to flanges A.

[0008] Preferably, the fixing assembly further includes a spring fixedly disposed on the right side of the nut and a pressure ring fixedly disposed on the right side of the spring, wherein the pressure ring is fixedly connected to flange A after the nut is screwed in.

[0009] Preferably, an inner ring is fixedly provided on the inner side of the sealing sleeve C, and an annular groove is provided on the outer wall of the steel pipe A. After the inner ring is inserted into the annular groove, the sealing sleeve C is sleeved on the outside of the ceramic ring, the steel pipe A and the steel pipe B.

[0010] Preferably, the ceramic ring material is industrial ceramic, the sealing sleeve A and sealing sleeve B are both made of fluororubber, and the right end face of the steel pipe A and the left end face of the steel pipe B are both provided with anti-corrosion coating.

[0011] Preferably, both steel pipe A and steel pipe B have indicator grooves on their outer side walls.

[0012] The beneficial effects of this utility model are as follows: By passing screws through the through holes on flanges A and B, and then screwing nuts into the screws to fix them to flange A, the screws are fixedly connected to flange B, steel pipe A is fixedly connected to steel pipe B, and a ceramic ring is fixed between steel pipes A and B. This also fixes sealing ring A to sealing sleeve A and sealing ring B to sealing sleeve B, thus enhancing the sealing performance and preventing liquid leakage from inside steel pipes A and B. When steel pipes A and B are used to transport chemical liquids, the indicator grooves on steel pipes A and B are aligned with the liquid flow direction before installation. When the liquid passes through the connection between the ceramic ring and steel pipes A and B, the ceramic ring is tightly connected to steel pipes A and B, effectively preventing leakage. To prevent liquid from seeping into the joint, the ceramic ring is designed with an arc shape at the connection points of steel pipes A and B. Even if liquid seeps into the joint, it will slide out along the arc. This is especially effective when steel pipes A and B are installed vertically, preventing liquid residue from remaining at the joint. The ceramic ring also has strong corrosion resistance, enhancing the corrosion resistance of the joint. In summary, this invention effectively prevents liquid from seeping into and remaining at the joint, and provides strong corrosion resistance. It solves the problem that during the transportation of acidic or alkaline liquids using stainless steel pipes, some liquid may remain at the joints, leading to corrosion and potential leakage of chemical liquids over time. Attached Figure Description

[0013] Appendix Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Appendix Figure 2 This is a top view of the present invention;

[0015] Appendix Figure 3 For the appendix Figure 2 Sectional view at point AA;

[0016] Appendix Figure 4 For the appendix Figure 3 Enlarged view of point A in the middle.

[0017] In the diagram: 1. Steel pipe A; 2. Steel pipe B; 3. Ceramic ring; 4. Sealing ring A; 5. Sealing ring B; 6. Sealing sleeve A; 7. Sealing sleeve B; 8. Sealing groove A; 9. Sealing groove B; 10. Sealing sleeve C; 11. Clamp; 12. Flange A; 13. Flange B; 14. Screw; 15. Nut; 16. Spring; 17. Pressure ring; 18. Inner ring; 19. Ring groove; 20. Indicator groove. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] like Figure 1-4As shown, this utility model discloses a corrosion-resistant stainless steel pipe, including a steel pipe A1 and a steel pipe B2 located to the right of steel pipe A1. The steel pipe A1 and steel pipe B2 are fixedly connected by a fixing assembly. A connecting assembly is provided between steel pipe A1 and steel pipe B2. The connecting assembly includes a ceramic ring 3, a sealing ring A4 fixedly disposed to the left of the ceramic ring 3, a sealing ring B5 fixedly disposed to the left of the steel pipe B2, a sealing sleeve A6, and a sealing sleeve B7. The left end faces of the ceramic ring 3 and the steel pipe B2 are both convex arc-shaped. The steel pipe A1 and the ceramic ring 3 are both recessed arc-shaped on their right ends. Sealing grooves A8 and B9 are respectively provided on the right ends of the steel pipe A1 and the ceramic ring 3. Sealing sleeves A6 and B7 are located inside the sealing grooves A8 and B9, respectively. Sealing rings A4 and B5 are inserted into the sealing grooves A8 and B9, respectively, and abut against the sealing sleeves A6 and B7. The left and right ends of the ceramic ring 3 are respectively fitted and connected to the right end of the steel pipe A1 and the left end of the steel pipe B2.In use, the ceramic ring 3 is placed between steel pipe A1 and steel pipe B2. The sealing sleeve A6 is inserted into the sealing groove A8 and its inner wall is contacted. The sealing sleeve B7 is inserted into the sealing groove B9 and its inner wall is contacted. The sealing ring A4 is inserted into the sealing groove A8 and its sealing sleeve A6 is contacted. The sealing ring B5 is inserted into the sealing groove B9 and its sealing sleeve B7 is contacted. Thus, the ceramic ring 3 is installed between steel pipe A1 and steel pipe B2. Because the left end face of the ceramic ring 3 is a convex arc shape, and the right end face of the steel pipe A1 is a concave arc shape, the left end face of the ceramic ring 3... The ceramic ring 3 will fit snugly against the right end face of steel pipe A1. Since the left end face of steel pipe B2 is a convex arc shape and the right end face of ceramic ring 3 is a concave arc shape, the right end face of ceramic ring 3 will fit snugly against the left end face of steel pipe B2, ensuring a tight connection. Screw 14 is passed through the through holes on flanges A12 and B13, and then nut 15 is screwed into screw 14 to fix it to flange A12. This fixes screw 14 to flange B13, thus fixing steel pipe A1 and steel pipe B2. The ceramic ring 3 is then fixed between steel pipe A1 and steel pipe B2, and the sealing ring A4 is fixed to the sealing sleeve A6. The sealing ring B5 and sealing sleeve B7 are fixedly connected, enhancing the sealing performance and preventing liquid leakage from inside steel pipes A1 and B2. When steel pipes A1 and B2 are used to transport chemical liquids, the indicator groove 20 on steel pipes A1 and B2 should be aligned with the liquid flow direction before installation. When liquid passes through the connection between ceramic ring 3 and steel pipes A1 and B2, the ceramic ring 3 is tightly connected to steel pipes A1 and B2, preventing liquid from seeping into the connection. The connection between ceramic ring 3 and steel pipes A1 and B2 is arc-shaped, so even if liquid seeps into the connection... The liquid will also slide out along the curve, especially when steel pipe A1 and steel pipe B2 are installed vertically, which helps to prevent liquid residue at the joint. The ceramic ring 3 has strong corrosion resistance, which enhances the corrosion resistance of the joint. In summary, this utility model has the beneficial effect of preventing liquid from seeping into and remaining at the joint. The joint has strong corrosion resistance, which solves the problem that some liquid may remain at the joint of stainless steel pipes during the transportation of acidic or alkaline liquids. Over time, this can easily lead to corrosion of the stainless steel pipe joint and cause chemical liquid leakage.

[0020] Preferably, the connecting assembly further includes a sealing sleeve C10 and a clamp 11 fitted over the outside of the sealing sleeve C10. The sealing sleeve C10 is fitted over the ceramic ring 3, steel pipe A1, and steel pipe B2, and is fixedly connected to the ceramic ring 3, steel pipe A1, and steel pipe B2 by the clamp 11. Since the sealing sleeve C10 is fixedly connected to the ceramic ring 3, steel pipe A1, and steel pipe B2 by the clamp 11, it seals the external connection between the ceramic ring 3 and the steel pipes A1 and B2, preventing external impurities from entering.

[0021] Preferably, the fixing assembly includes flanges A12 and B13, respectively fixedly disposed on the outside of steel pipes A1 and B2, and a plurality of screws 14 and nuts 15. Flanges A12 and B13 are located on the left and right sides of the sealing sleeve C10, respectively. Each flange A12 and B13 has a plurality of through holes. After the screws 14 pass through the through holes, the nuts 15 are screwed into the screws 14 to fix them to flanges A12. By passing the screws 14 through the through holes in flanges A12 and B13, and then screwing the nuts 15 into the screws 14 to fix them to flanges A12, the screws 14 are fixedly connected to flanges B13, thus fixing steel pipes A1 and B2, and fixing the ceramic ring 3 between steel pipes A1 and B2. This facilitates the fixing and connection of the ceramic ring 3, steel pipes A1 and B2.

[0022] Preferably, the fixing assembly further includes a spring 16 fixedly disposed on the right side of the nut 15 and a pressure ring 17 fixedly disposed on the right side of the spring 16. After the nut 15 is screwed into the screw 14, the pressure ring 17 is fixedly connected to the flange A12. Since the pressure ring 17 is fixedly connected to the flange A12 after the nut 15 is screwed into the screw 14, the spring 16 will apply pressure to the nut 15, so that the threads of the nut 15 and the threads of the screw 14 are tightly pressed together, which plays a role in preventing the nut 15 from loosening.

[0023] Preferably, an inner ring 18 is fixedly provided on the inner side of the sealing sleeve C10, and an annular groove 19 is formed on the outer wall of the steel pipe A1. After the inner ring 18 is inserted into the annular groove 19, the sealing sleeve C10 is fitted onto the outside of the ceramic ring 3, the steel pipe A1, and the steel pipe B2. Since the sealing sleeve C10 is fitted onto the outside of the ceramic ring 3, the steel pipe A1, and the steel pipe B2 after the inner ring 18 is inserted into the annular groove 19, it facilitates the positioning of the sealing sleeve C10 during installation.

[0024] Preferably, the ceramic ring 3 is made of industrial ceramic, the sealing sleeves A6 and B7 are both made of fluororubber, and the right end face of the steel pipe A1 and the left end face of the steel pipe B2 are both coated with an anti-corrosion coating. Because the ceramic ring 3 is made of industrial ceramic, it possesses characteristics such as corrosion resistance, wear resistance, and high temperature resistance; because the sealing sleeves A6 and B7 are both made of fluororubber, they possess characteristics such as corrosion resistance and strong airtightness; and because the right end face of the steel pipe A1 and the left end face of the steel pipe B2 are coated with an anti-corrosion coating, the corrosion resistance of the right end face of the steel pipe A1 and the left end face of the steel pipe B2 is improved.

[0025] Preferably, both steel pipe A1 and steel pipe B2 have an indicator groove 20 on their outer side walls. The indicator groove 20 is arrow-shaped and serves to indicate the installation position of steel pipe A1 and steel pipe B2.

[0026] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A corrosion-resistant stainless steel pipe, comprising a steel pipe A (1) and a steel pipe B (2) located to the right of the steel pipe A (1), characterized in that: The steel pipe A (1) and steel pipe B (2) are fixedly connected by a fixing component. A connecting component is provided between the steel pipe A (1) and steel pipe B (2). The connecting component includes a ceramic ring (3), a sealing ring A (4) fixedly disposed on the left side of the ceramic ring (3), a sealing ring B (5) fixedly disposed on the left side of the steel pipe B (2), a sealing sleeve A (6), and a sealing sleeve B (7). The left end face of the ceramic ring (3) and the steel pipe B (2) are both convex arc-shaped, and the right end face of the steel pipe A (1) and the ceramic ring (3) are both concave arc-shaped. The steel pipe A (1) and the ceramic ring (3) are respectively provided with sealing groove A (8) and sealing groove B (9) on their right end faces. The sealing sleeve A (6) and sealing sleeve B (7) are respectively located inside the sealing groove A (8) and sealing groove B (9). The sealing ring A (4) and sealing ring B (5) are respectively inserted into the sealing groove A (8) and sealing groove B (9) and abut against the sealing sleeve A (6) and sealing sleeve B (7). The left and right end faces of the ceramic ring (3) are respectively attached to the right end face of the steel pipe A (1) and the left end face of the steel pipe B (2).

2. The corrosion-resistant stainless steel pipe according to claim 1, characterized in that: The connecting assembly also includes a sealing sleeve C (10) and a clamp (11) fitted on the outside of the sealing sleeve C (10). The sealing sleeve C (10) is fitted on the outside of the ceramic ring (3), steel pipe A (1) and steel pipe B (2). The sealing sleeve C (10) is fixedly connected to the ceramic ring (3), steel pipe A (1) and steel pipe B (2) by the clamp (11).

3. The corrosion-resistant stainless steel pipe according to claim 2, characterized in that: The fixing assembly includes flanges A (12) and B (13) fixedly installed on the outside of steel pipe A (1) and steel pipe B (2), a number of screws (14) and nuts (15). Flanges A (12) and B (13) are located on the left and right sides of the sealing sleeve C (10), respectively. Flanges A (12) and B (13) are provided with a number of through holes. After the screws (14) pass through the through holes, the nuts (15) are screwed into the screws (14) and fixedly connected to the flanges A (12).

4. The corrosion-resistant stainless steel pipe according to claim 3, characterized in that: The fixing assembly also includes a spring (16) fixedly disposed on the right side of the nut (15) and a pressure ring (17) fixedly disposed on the right side of the spring (16). After the nut (15) is screwed into the screw (14), the pressure ring (17) is fixedly connected to the flange A (12).

5. The corrosion-resistant stainless steel pipe according to claim 2, characterized in that: An inner ring (18) is fixedly provided on the inner side of the sealing sleeve C (10), and an annular groove (19) is provided on the outer side wall of the steel pipe A (1). After the inner ring (18) is inserted into the annular groove (19), the sealing sleeve C (10) is fitted on the outside of the ceramic ring (3), the steel pipe A (1) and the steel pipe B (2).

6. The corrosion-resistant stainless steel pipe according to claim 1, characterized in that: The ceramic ring (3) is made of industrial ceramics, the sealing sleeve A (6) and sealing sleeve B (7) are both made of fluororubber, and the right end face of the steel pipe A (1) and the left end face of the steel pipe B (2) are both provided with anti-corrosion coating.

7. The corrosion-resistant stainless steel pipe according to claim 1, characterized in that: Indication grooves (20) are provided on the outer walls of both steel pipe A (1) and steel pipe B (2).

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