Stainless steel seamless pipe for heat exchanger

Abstract

This utility model discloses a seamless stainless steel tube for heat exchangers, including a vertical tube and a bend. Insertion rings are fixedly connected to the lower parts of both sides of the bend. An insertion groove matching the insertion ring is formed on the inner side of the upper part of the vertical tube. Two sets of magnetic anti-scaling rings are sleeved on the outer side of the upper part of the vertical tube. Embedding grooves are formed at both ends of the bend and the upper part of the vertical tube. Embedding rings matching the embedding grooves are fixedly connected to the lower part of the magnetic anti-scaling rings. Two sets of connecting blocks are fixedly connected to the outer side of the magnetic anti-scaling rings. A sliding rod is slidably connected inside each connecting block. An installation ring matching the embedding groove is fixedly connected to the upper part of the sliding rod. A fastening screw is threaded inside the installation ring. The lower part of the fastening screw is rotatably connected to the upper part of the magnetic anti-scaling ring. This design effectively reduces scale accumulation inside the heat exchange tube and allows for convenient scale removal through assembly.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a seamless stainless steel tube for heat exchangers. Background Technology

[0002] Seamless stainless steel tubes for heat exchangers refer to tubular components made of stainless steel specifically designed for heat transfer in various heat exchanger equipment. They are core components of shell-and-tube heat exchangers, condensers, evaporators, and other similar devices. Due to their corrosion resistance, high strength, and impact resistance, they are widely used in heat exchange applications in industries such as chemical, petroleum, power, food, and pharmaceuticals.

[0003] Traditionally, heat exchange tubes used inside heat exchangers are mainly made of stainless steel tubes. In order to ensure sealing, the components are connected by welding. However, after long-term use, dirt will accumulate on the inner wall of these stainless steel tubes. This dirt greatly affects the heat exchange of the medium inside the tubes. Moreover, because the heat exchange tubes have many bends, they are very inconvenient to clean. Utility Model Content

[0004] The purpose of this utility model is to provide a seamless stainless steel tube for heat exchangers to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a seamless stainless steel pipe for heat exchangers, comprising a vertical pipe and a bent pipe. Insertion rings are fixedly connected to the lower parts of both sides of the bent pipe. An insertion groove matching the insertion ring is formed on the inner side of the upper part of the vertical pipe. Two sets of magnetic anti-scaling rings are sleeved on the outer side of the upper part of the vertical pipe. Embedding grooves are formed at both ends of the bent pipe and the upper part of the vertical pipe. Embedding rings matching the embedding grooves are fixedly connected to the lower part of the magnetic anti-scaling rings. Two sets of connecting blocks are fixedly connected to the outer side of the magnetic anti-scaling rings. A sliding rod is slidably connected inside each connecting block. An installation ring matching the embedding groove is fixedly connected to the upper part of the sliding rod. A fastening screw is threaded inside the installation ring. The lower part of the fastening screw is rotatably connected to the upper part of the magnetic anti-scaling ring.

[0006] Preferably, four sets of mounting plates are fixedly connected to the upper and lower ends of the magnetic anti-scalding rings on one side, and mounting screws are threaded inside the mounting plates, with fixing nuts threaded at the tail of the mounting screws.

[0007] Preferably, the lower part of the insertion groove has an installation groove, and a rubber ring is fitted inside the installation groove.

[0008] Preferably, a connecting piece is fixedly connected to the lower part of the magnetic anti-scalding ring, and a positioning screw is threadedly connected to both sides of the vertical pipe inside the connecting piece.

[0009] Preferably, the mounting ring has two sets of buffer grooves inside, and a mounting block is slidably connected inside the buffer groove. A connecting screw is threaded inside the mounting block, and a vertical rod is fixedly connected to the lower part of the connecting screw. A bent rod is rotatably connected to the upper part of the connecting screw on both sides.

[0010] Preferably, damping rods and springs are fixedly connected between the two sides of the mounting block and the buffer groove, with the springs sleeved on the outside of the damping rods.

[0011] Preferably, the buffer groove has limiting grooves on both sides, and the mounting block has limiting blocks fixedly connected to both sides, with the limiting blocks slidably connected inside the limiting grooves.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model connects the vertical pipe and the curved pipe by inserting an insertion ring into the insertion groove. A magnetic anti-scaling ring is placed on the upper part of the vertical pipe, and the embedding ring at the lower part of the magnetic anti-scaling ring is placed in the embedding groove at the upper part of the vertical pipe. An installation ring is placed in the embedding groove at both ends of the lower part of the curved pipe. By rotating the fastening screw, the installation ring is pulled down to tighten the curved pipe, ensuring a reliable connection between the curved pipe and the vertical pipe. This effectively reduces the accumulation of scale inside the heat exchange tube and allows for convenient handling of internal scale through assembly.

[0014] 2. This utility model also connects the vertical rods and the curved rods by inserting the vertical rods on both sides into the mounting block. When the vertical rods and the curved rods are impacted, the mounting block stretches and compresses the damping rods and springs on both sides respectively. The elastic deformation of the springs plays a buffering role against the impact, which can provide a certain degree of protection against the impact of large objects from both sides. Attached Figure Description

[0015] Figure 1 This is a first-view three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is an enlarged view of the magnetic anti-scaling ring structure from a second perspective of this utility model;

[0017] Figure 3 This is a third-view perspective three-dimensional structural cross-sectional view of the present invention;

[0018] Figure 4 This is an enlarged view of the fourth-view buffer groove structure of this utility model.

[0019] In the diagram: 1. Vertical pipe; 2. Bend; 3. Insertion ring; 4. Insertion groove; 5. Magnetic anti-scalding ring; 6. Mounting plate; 7. Mounting screw; 8. Fixing nut; 9. Embedded groove; 10. Embedded ring; 11. Connecting block; 12. Sliding rod; 13. Mounting ring; 14. Mounting groove; 15. Rubber ring; 16. Connecting plate; 17. Positioning screw; 18. Buffer groove; 19. Mounting block; 20. Connecting screw; 21. Bend; 22. Vertical rod; 23. Damping rod; 24. Spring; 25. Limiting groove; 26. Limiting block; 27. Fastening screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a seamless stainless steel pipe for heat exchangers, including a vertical pipe 1 and a bent pipe 2. Insertion rings 3 are fixedly welded to the lower parts of both sides of the bent pipe 2. An insertion groove 4 matching the insertion ring 3 is opened on the inner side of the upper part of the vertical pipe 1. The vertical pipe 1 and the bent pipe 2 are connected by inserting the insertion ring 3 into the insertion groove 4. Two sets of magnetic anti-scaling rings 5 ​​are sleeved on the outer side of the upper part of the vertical pipe 1. The magnetic anti-scaling rings 5 ​​change the physicochemical properties of scale-forming ions in the water through the action of a magnetic field, thereby inhibiting scale formation or reducing its adhesion. Embedding grooves 9 are opened at both ends of the bent pipe 2 and the upper part of the vertical pipe 1. Matching... The embedded ring 10 of the embedded groove 9 and the magnetic anti-scaling ring 5 are fixedly welded to the outside of two sets of connecting blocks 11. The sliding rod 12 is slidably installed inside the connecting block 11. The upper part of the sliding rod 12 is fixedly welded to the mounting ring 13 that matches the embedded groove 9. The mounting ring 13 is threaded with a fastening screw 27 inside. The lower part of the fastening screw 27 is rotatably connected to the upper part of the magnetic anti-scaling ring 5. The embedded ring 10 of the lower part of the magnetic anti-scaling ring 5 is fitted into the embedded groove 9 of the upper part of the vertical pipe 1. The mounting ring 13 is fitted into the embedded grooves 9 at both ends of the lower part of the bend 2. By rotating the fastening screw 27, the mounting ring 13 is pulled down to tighten the bend 2, ensuring that the bend 2 and the vertical pipe 1 are firmly connected.

[0022] Four sets of mounting plates 6 are fixedly welded to the upper and lower ends of the magnetic anti-scaling rings 5 ​​facing one side. The mounting plates 6 are internally threaded with mounting screws 7, and the tail of the mounting screws 7 is threaded with a fixing nut 8. The magnetic anti-scaling rings 5 ​​on both sides are fitted onto the vertical pipe 1, and the mounting plates 6 on both sides are connected by the mounting screws 7. The mounting plates 6 are tightened by the fixing nut 8, thus installing the magnetic anti-scaling rings 5 ​​on both sides. An installation groove 14 is provided at the lower part of the insertion groove 4. A rubber ring 15 is fitted inside the installation groove 14 to improve the sealing at the insertion ring 3 and prevent liquid leakage. A connecting piece 16 is fixedly welded to the lower part of the magnetic anti-scaling ring 5. Positioning screws 17 are threaded inside the connecting piece 16 and the two sides of the vertical pipe 1. The positioning screws 17 connect the outer side of the vertical pipe 1 and the connecting piece 16 to prevent the magnetic anti-scaling ring 5 from rotating arbitrarily. Two sets of buffer grooves 18 are provided inside the installation ring 13. An installation block 19 is slidably installed inside the buffer groove 18. A connecting screw 20 is threaded inside the installation block 19. A vertical rod 22 is fixedly welded to the lower part of the mounting block 19, and a bent rod 21 is rotatably installed on the upper part of the connecting screws 20 on both sides. By inserting the vertical rods 22 on both sides into the mounting block 19 and fixing the connecting screws 20 in the mounting block 19 by rotating them, the vertical rods 22 and the bent rods 21 are connected, which can play a certain role in protecting against the impact of large objects from both sides. A damping rod 23 and a spring 24 are fixedly welded between the two sides of the mounting block 19 and the buffer groove 18. The spring 24 is sleeved on the outside of the damping rod 23. When the vertical rods 22 and the bent rods 21 are impacted, the mounting block 19 stretches and compresses the damping rods 23 and the springs 24 on both sides respectively. The elastic deformation of the spring 24 plays a buffering role in the impact and absorbs the elastic deformation in conjunction with the damping rod 23. The buffer groove 18 has a limiting groove 25 on both sides, and a limiting block 26 is fixedly welded to both sides of the mounting block 19. The limiting block 26 is slidably installed in the limiting groove 25 to limit the movement direction of the mounting block 19.

[0023] Working Principle: In use, this utility model connects the vertical pipe 1 and the curved pipe 2 by inserting the insertion ring 3 into the insertion groove 4. The magnetic anti-scaling ring 5 is placed on the upper part of the vertical pipe 1, and the lower embedded ring 10 of the magnetic anti-scaling ring 5 is placed in the embedded groove 9 on the upper part of the vertical pipe 1. The mounting ring 13 is placed in the embedded grooves 9 at both ends of the lower part of the curved pipe 2. By rotating the fastening screw 27, the mounting ring 13 is pulled downwards to tighten the curved pipe 2, ensuring a secure connection between the curved pipe 2 and the vertical pipe 1. This effectively reduces scale accumulation inside the heat exchange tube and... The assembly method facilitates the removal of internal scale. By inserting the vertical rods 22 on both sides into the mounting block 19 and fixing the connecting screws 20 in the mounting block 19 by rotating them, the vertical rods 22 and the bent rods 21 are connected. When the vertical rods 22 and the bent rods 21 are impacted, the mounting block 19 stretches and compresses the damping rods 23 and the springs 24 on both sides respectively. The elastic deformation of the springs 24 buffers the impact and can provide a certain degree of protection against impacts from large objects on both sides.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seamless stainless steel tube for a heat exchanger, comprising a vertical tube (1) and a bent tube (2), characterized in that: The lower parts of both sides of the bent pipe (2) are fixedly connected with insertion rings (3). The upper inner side of the vertical pipe (1) is provided with an insertion groove (4) that matches the insertion ring (3). The upper outer side of the vertical pipe (1) is fitted with two sets of magnetic anti-scaling rings (5). The two ends of the bent pipe (2) and the upper part of the vertical pipe (1) are provided with embedding grooves (9). The lower part of the magnetic anti-scaling ring (5) is fixedly connected with an embedding ring (10) that matches the embedding groove (9). The outer side of the magnetic anti-scaling ring (5) is fixedly connected with two sets of connecting blocks (11). The connecting block (11) is slidably connected with a sliding rod (12). The upper part of the sliding rod (12) is fixedly connected with an installation ring (13) that matches the embedding groove (9). The installation ring (13) is threadedly connected with a fastening screw (27). The lower part of the fastening screw (27) is rotatably connected to the upper part of the magnetic anti-scaling ring (5).

2. The seamless stainless steel tube for heat exchangers according to claim 1, characterized in that: The magnetic anti-scalding rings (5) on both sides are fixedly connected to four sets of mounting plates (6) at their upper and lower ends on one side. The mounting plates (6) are internally threaded with mounting screws (7), and the mounting screws (7) are threaded with fixing nuts (8) at their tails.

3. The seamless stainless steel tube for heat exchangers according to claim 1, characterized in that: The insertion groove (4) has an installation groove (14) at its lower part, and a rubber ring (15) is fitted inside the installation groove (14).

4. The seamless stainless steel tube for heat exchangers according to claim 1, characterized in that: The magnetic anti-scalding ring (5) is fixedly connected to a connecting piece (16) at its lower part. The connecting piece (16) is threadedly connected to the internal threads of both sides of the vertical tube (1) with positioning screws (17).

5. A seamless stainless steel tube for a heat exchanger according to claim 1, characterized in that: The mounting ring (13) has two sets of buffer grooves (18) inside. The buffer grooves (18) are slidably connected to the mounting blocks (19). The mounting blocks (19) are threadedly connected to the connecting screws (20). The lower part of the connecting screws (20) is fixedly connected to the vertical rod (22), and the upper part of the connecting screws (20) on both sides is rotatably connected to the bent rods (21).

6. A seamless stainless steel tube for a heat exchanger according to claim 5, characterized in that: Damping rods (23) and springs (24) are fixedly connected between the two sides of the mounting block (19) and the buffer groove (18), and the springs (24) are sleeved on the outside of the damping rods (23).

7. A seamless stainless steel tube for a heat exchanger according to claim 5, characterized in that: The buffer groove (18) has a limiting groove (25) on both sides, and the mounting block (19) has a limiting block (26) fixedly connected to both sides. The limiting block (26) is slidably connected inside the limiting groove (25).

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