Silicon carbide tubular heat exchanger

Abstract

The utility model belongs to the technical field of tubular heat exchangers, and particularly relates to a silicon carbide tubular heat exchanger which comprises a silicon carbide heat exchange tube and an end socket, an installation ring is fixedly connected to the outer wall of the end socket, butt joint rings are fixedly connected to the outer walls of the two ends of the silicon carbide heat exchange tube, and an adjusting ring is rotationally connected to the outer wall of the side, close to the installation ring, of each butt joint ring. A toothed ring is fixedly connected to the inner wall of the adjusting ring, a sealing groove is formed in the side, close to the mounting ring, of the butt joint ring, a sealing ring is fixedly connected to the side, close to the adjusting ring, of the mounting ring, the sealing ring is movably sleeved with the sealing groove, and a guide groove is formed in the inner wall of the sealing groove. Under the action of mutual cooperation of the adjusting ring, the gear ring, the guide groove, the pressing plate, the spring, the adjusting block, the sliding groove, the lead screw, the first bevel gear, the driving gear and the second bevel gear, the spring can compensate the deformation quantity of the sealing ring, and the sealing performance of the sealing ring is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of tubular heat exchangers, specifically a silicon carbide shell and tube heat exchanger. Background Technology

[0002] Silicon carbide shell and tube heat exchangers are a new type of shell and tube heat exchanger that uses silicon carbide material as the heat transfer element. They are especially suitable for extreme environments such as high temperature, high pressure, strong corrosion, and high wear in industries such as chemical, petroleum, pharmaceutical, and metallurgy.

[0003] In existing silicon carbide heat exchangers, the end caps at both ends are typically fixed to the heat exchanger shell with bolts, and an O-ring is installed between the end caps and the shell for sealing. After prolonged use, the O-rings are prone to aging or creep, causing the sealing rings to fail to fit tightly and gaps to remain, posing a risk of leakage. Summary of the Invention

[0004] The purpose of this invention is to provide a silicon carbide tube heat exchanger that has the function of compensating for the deformation of the sealing ring, ensuring that the sealing ring can be stably pressed against the inner wall of the sealing groove.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A silicon carbide tube heat exchanger is provided, comprising silicon carbide heat exchange tubes and end caps. An mounting ring is fixedly connected to the outer wall of the end caps. A mating ring is fixedly connected to the outer walls of both ends of the silicon carbide heat exchange tubes. An adjusting ring is rotatably connected to the outer wall of the mating ring near the mounting ring. A toothed ring is fixedly connected to the inner wall of the adjusting ring. A sealing groove is formed on the side of the mating ring near the mounting ring. A sealing ring is fixedly connected to the side of the mounting ring near the adjusting ring. The sealing ring is movably fitted within the sealing groove. A guide groove is provided on the inner wall of the sealing groove, and a pressure plate is slidably connected in the guide groove. A sliding groove is provided on the inner wall of the guide groove away from the sealing groove, and an adjusting block is slidably connected in the sliding groove. A spring is fixedly connected between the adjusting block and the pressure plate. A lead screw and a drive gear are rotatably connected in the mating ring. The drive gear meshes with a gear ring. A bevel gear is fixedly connected to one end of the rotating shaft fixedly connected to the drive gear. A bevel gear is fixedly connected to the outer wall of the lead screw. The bevel gear and the bevel gear mesh. The lead screw is threaded in the adjusting block.

[0006] Optionally, an installation block is fixedly connected to the outer wall of the mounting ring, and a docking block is fixedly connected to the outer wall of the docking ring. A screw is sleeved between the installation block and the docking block, and nuts are threaded onto the outer walls of both ends of the screw.

[0007] Optionally, the toothed ring is rotatably sleeved inside the mating ring, and the spring is movably sleeved inside the guide groove.

[0008] Optionally, the length of the adjusting block is less than the depth of the slide groove, and the slide groove has a rectangular structure.

[0009] Optionally, the portion of the pressure plate protruding from the guide groove is a conical structure, and the plate body near the spring is a cylindrical structure.

[0010] Optionally, a locking screw is threaded onto the adjusting ring, and the lower end of the locking screw is pressed against the outer wall of the mating ring.

[0011] Optionally, multiple mounting blocks are provided, the number of mating blocks is equal to the number of mounting blocks, and the multiple mounting blocks are evenly distributed on the outer wall of the mounting ring.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] This invention utilizes the interplay of an adjusting ring, a toothed ring, a guide groove, a pressure plate, a spring, an adjusting block, a sliding groove, a lead screw, a first bevel gear, a drive gear, and a second bevel gear. The rotation of the adjusting ring drives the toothed ring, which in turn drives the drive gear. This, in turn, drives the second bevel gear via a fixedly fitted shaft, which in turn drives the first bevel gear. This, in turn, drives the spring, controlling the movement of the adjusting block. The spring then drives the pressure plate to press the sealing ring tightly. At this point, the spring is in a compressed state. When the sealing ring deforms after prolonged use, causing it to no longer fit tightly against the inner wall of the sealing groove, the spring compensates for the deformation, ensuring the sealing performance. Furthermore, a locking screw is threaded onto the outer wall of the adjusting ring. Adjusting the pressure of the locking screw on the mating ring allows the adjusting ring to self-lock, preventing it from rotating. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of this utility model;

[0018] Figure 4 for Figure 2 Enlarged structural diagram at point A;

[0019] Figure 5 This is a schematic diagram of the structure of the adjusting ring of this utility model.

[0020] In the diagram: 1. Silicon carbide heat exchange tube; 2. End cap; 3. Mounting ring; 4. Mounting block; 5. Connecting ring; 6. Connecting block; 7. Adjusting ring; 8. Locking screw; 9. Gear ring; 10. Sealing groove; 11. Sealing ring; 12. Guide groove; 13. Pressure plate; 14. Spring; 15. Adjusting block; 16. Slide groove; 17. Lead screw; 18. Bevel gear one; 19. Drive gear; 20. Bevel gear two. Detailed Implementation

[0021] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0022] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0023] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Reference Figure 1-5The present invention provides a silicon carbide tube heat exchanger according to an embodiment of the present invention. A silicon carbide tube heat exchanger includes a silicon carbide heat exchange tube 1 and a head 2. An mounting ring 3 is fixedly connected to the outer wall of the head 2. A docking ring 5 is fixedly connected to the outer walls of both ends of the silicon carbide heat exchange tube 1. An adjusting ring 7 is rotatably connected to the outer wall of the docking ring 5 near the mounting ring 3. A toothed ring 9 is fixedly connected to the inner wall of the adjusting ring 7. A sealing groove 10 is formed on the side of the docking ring 5 near the mounting ring 3. A sealing ring 11 is fixedly connected to the side of the mounting ring 3 near the adjusting ring 7. The sealing ring 11 is movably fitted into the sealing groove 10. A guide groove 12 is formed on the inner wall of the sealing groove 10. A pressure plate 13 is slidably connected within the guide groove 12. A guide groove is formed on the inner wall of the guide groove 12 away from the sealing groove 10. A sliding groove 16 is provided, and an adjusting block 15 is slidably connected within the sliding groove 16. A spring 14 is fixedly connected between the adjusting block 15 and the pressure plate 13. A lead screw 17 and a drive gear 19 are rotatably connected within the mating ring 5. The drive gear 19 meshes with a gear ring 9. Rotating the adjusting ring 7 can drive the gear ring 9 to rotate, thereby driving the drive gear 19 to rotate. A bevel gear 20 is fixedly connected to one end of the rotating shaft that is fixedly connected to the drive gear 19. The bevel gear 20 rotates synchronously with the drive gear 19. A bevel gear 18 is fixedly connected to the outer wall of the lead screw 17. The bevel gear 18 meshes with the bevel gear 20. The lead screw 17 is threadedly connected within the adjusting block 15. When the lead screw 17 rotates, it can drive the adjusting block 15 to move.

[0026] This utility model provides a silicon carbide tube heat exchanger. Compared with the prior art, the adjustment ring 7 rotates to drive the gear ring 9, which in turn drives the drive gear 19 to rotate. This, in turn, drives the bevel gear 20 to rotate via the rotating shaft, which in turn drives the bevel gear 18 to rotate. This, in turn, drives the lead screw 17 to rotate, controlling the movement of the adjustment block 15. The spring 14 drives the pressure plate 13 to press the surface of the sealing ring 11. When the sealing ring 11 deforms, the extension and contraction of the spring 14 can compensate for the deformation, ensuring that the sealing ring 11 can be stably pressed against the inner wall of the sealing groove 10 for a longer period of time, maintaining the sealing effect.

[0027] In another embodiment of this utility model, please refer to Figures 1 to 3 Mounting block 4 is fixedly connected to the outer wall of mounting ring 3, and docking block 6 is fixedly connected to the outer wall of docking ring 5. A screw is sleeved between mounting block 4 and docking block 6. Nuts are threaded onto the outer walls of both ends of the screw. The silicon carbide heat exchange tube 1 and end cap 2 are installed and fixed by using the screw to sleeve mounting block 4 and docking block 6. Multiple mounting blocks 4 are provided, and the number of docking blocks 6 is equal to the number of mounting blocks 4. The multiple mounting blocks 4 are evenly distributed on the outer wall of mounting ring 3.

[0028] In another embodiment of this utility model, please refer to Figure 4The toothed ring 9 is rotatably sleeved inside the docking ring 5, and the spring 14 is movably sleeved inside the guide groove 12. The length of the adjusting block 15 is less than the depth of the slide groove 16. The slide groove 16 has a rectangular structure to ensure that the adjusting block 15 is in a stable sliding state within the slide groove 16. The part of the pressure plate 13 that protrudes from the guide groove 12 has a conical structure, and the plate body of the pressure plate 13 near the spring 14 has a cylindrical structure. The conical structure allows the pressure plate 13 to automatically move into the guide groove 12 when it contacts the sealing ring 11, while the cylindrical structure ensures the stability of the contact between the pressure plate 13 and the inner wall of the guide groove 12.

[0029] In another embodiment of this utility model, please refer to Figure 3 and Figure 5 The adjusting ring 7 is threaded with a locking screw 8. The lower end of the locking screw 8 is pressed against the outer wall of the mating ring 5. The pressure on the outer wall of the mating ring 5 can be adjusted by rotating the locking screw 8. The adjusting ring 7 is locked by the locking screw 8 to prevent the adjusting ring 7 from rotating at will.

[0030] 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 and improvements 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 silicon carbide tube heat exchanger, comprising silicon carbide heat exchange tubes (1) and end caps (2), characterized in that: An installation ring (3) is fixedly connected to the outer wall of the end cap (2). A docking ring (5) is fixedly connected to the outer walls of both ends of the silicon carbide heat exchange tube (1). An adjusting ring (7) is rotatably connected to the outer wall of the docking ring (5) near the installation ring (3). A toothed ring (9) is fixedly connected to the inner wall of the adjusting ring (7). A sealing groove (10) is provided on the side of the docking ring (5) near the installation ring (3). A sealing ring (11) is fixedly connected to the side of the installation ring (3) near the adjusting ring (7). The sealing ring (11) is movably fitted into the sealing groove (10). A guide groove (12) is provided on the inner wall of the sealing groove (10). A pressure plate (13) is slidably connected in the guide groove (12). A sliding groove (16) is provided on the inner wall of the guide groove (12) away from the sealing groove (10). An adjusting block (15) is slidably connected in the sliding groove (16). A spring (14) is fixedly connected between the adjusting block (15) and the pressure plate (13). A lead screw (17) and a drive gear (19) are rotatably connected in the docking ring (5). The drive gear (19) meshes with the gear ring (9). A bevel gear (20) is fixedly connected to one end of the rotating shaft of the drive gear (19). A bevel gear (18) is fixedly connected to the outer wall of the lead screw (17). The bevel gear (18) meshes with the bevel gear (20). The lead screw (17) is threaded in the adjusting block (15).

2. The silicon carbide tube heat exchanger as described in claim 1, characterized in that: An installation block (4) is fixedly connected to the outer wall of the mounting ring (3), and a docking block (6) is fixedly connected to the outer wall of the docking ring (5). A screw is sleeved between the installation block (4) and the docking block (6), and nuts are threaded onto the outer walls of both ends of the screw.

3. A silicon carbide tube heat exchanger as described in claim 1, characterized in that: The toothed ring (9) is rotatably sleeved inside the docking ring (5), and the spring (14) is movably sleeved inside the guide groove (12).

4. A silicon carbide tube heat exchanger as described in claim 1, characterized in that: The length of the adjusting block (15) is less than the depth of the slide groove (16), which is a rectangular structure.

5. A silicon carbide tube heat exchanger as described in claim 1, characterized in that: The portion of the pressure plate (13) protruding from the guide groove (12) is conical, and the plate body of the pressure plate (13) near the spring (14) is cylindrical.

6. A silicon carbide tube heat exchanger as described in claim 1, characterized in that: The adjusting ring (7) is threaded with a locking screw (8), and the lower end of the locking screw (8) is pressed against the outer wall of the mating ring (5).

7. A silicon carbide tube heat exchanger as described in claim 2, characterized in that: Multiple mounting blocks (4) are provided, and the number of docking blocks (6) is equal to that of mounting blocks (4). The multiple mounting blocks (4) are evenly distributed on the outer wall of the mounting ring (3).

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