A new type of sealed silicon carbide tubular heat exchanger

Abstract

This utility model belongs to the technical field of tubular heat exchangers, specifically a novel sealed silicon carbide tubular heat exchanger. It includes a base, a lower shell fixedly mounted on the top of the base, an upper shell fixedly mounted above the lower shell, a tube sheet fixedly mounted on the opposite side of the lower and upper shells, an end cap fixedly mounted on the other end of the tube sheet, mounting seats fixedly mounted on both sides of the outer wall of the lower shell, and mounting grooves formed on the outer wall of the top of the mounting seats. Mounting blocks are fixedly mounted on both sides of the outer wall of the upper shell. This utility model uses a drive assembly to separate the tube sheets on both sides, then pulls the pull rods on both sides. The pull rods move the locking blocks horizontally within the sliding grooves, compressing the springs. When the locking blocks move out of the grooves, the mounting blocks on both sides are pulled vertically upwards and removed from the mounting grooves, thus separating the mounting seats from the mounting blocks, thereby separating the lower shell from the upper shell.

Description

Technical Field

[0001] This utility model belongs to the technical field of tubular heat exchanger equipment, specifically a novel sealed silicon carbide tubular heat exchanger. Background Technology

[0002] Silicon carbide tube heat exchangers are a new type of heat exchanger that uses silicon carbide ceramic material as the heat transfer medium. Due to the excellent properties of silicon carbide ceramics, such as corrosion resistance, high temperature resistance, high thermal conductivity, high hardness, and wear resistance, silicon carbide ceramic heat exchangers are suitable for use in high-temperature and corrosive environments.

[0003] The main body and outer shell of existing silicon carbide tube heat exchangers are generally fixed together by welding. When the internal components of the silicon carbide tube heat exchanger need to be cleaned or replaced after long-term use, disassembly is relatively troublesome. Summary of the Invention

[0004] The purpose of this invention is to provide a novel sealed silicon carbide tubular heat exchanger that allows for quick disassembly and assembly of the heat exchanger's main shell, facilitating the cleaning or replacement of internal components.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A novel sealed silicon carbide tubular heat exchanger is provided, comprising a base, a lower shell fixedly mounted on the top of the base, an upper shell fixedly mounted above the lower shell, a tube sheet fixedly mounted on the opposite side of the lower and upper shells, an end cap fixedly mounted on the other end of the tube sheet, mounting seats fixedly mounted on both the left and right sides of the outer wall of the lower shell, an mounting groove formed on the outer wall of the top of the mounting seat, mounting blocks fixedly mounted on both the left and right sides of the outer wall of the upper shell, the mounting blocks being located inside the mounting grooves, and slots formed on the mounting blocks. A sliding groove is formed inside the mounting seat, the sliding groove communicating with the mounting groove, and a locking block slidably mounted on the inner wall of the sliding groove, one end of the locking block extending to... Inside the slot, a pull rod is fixedly installed at one end of the locking block away from the mounting block. The other end of the pull rod extends to the outside of the mounting base. A spring is sleeved on the outside of the pull rod and is fixedly installed between the sliding groove and the locking block. A slot is opened inside the base. A rotating shaft is rotatably connected to the bottom center of the inner wall of the slot. A main gear is fixedly installed at the top of the rotating shaft. Two sliding rods are arranged parallel to each other on the front and rear sides of the main gear. A rack plate is slidably installed on the outside of the sliding rod. The two rack plates are symmetrically distributed with the main gear as the center. The rack plates are meshed with the main gear. A connecting block is fixedly installed at the top of the rack plate. The top of the connecting block is fixedly installed to the bottom of the end cover. A drive assembly is installed inside the slot.

[0006] Optionally, a sealing groove is provided on the outer wall of the top of the lower housing, and a sealing strip is fixedly installed at the bottom of the upper housing, with the sealing strip fitting into the sealing groove.

[0007] Optionally, sealing frames are fixedly installed on the outer walls of both sides of the lower housing and the upper housing, and sealing grooves are provided on the sealing frames. Sealing strips are fixedly installed on the outer wall of the tube sheet, and sealing strips are fitted into the sealing grooves.

[0008] Optionally, the drive assembly includes a rotating rod, which is movably mounted inside the slot and extends through the base. One end of the rotating rod is fixedly mounted with a bevel gear, and the outer side of the rotating shaft is fixedly mounted with a bevel gear. A knob is fixedly mounted at the end of the rotating rod away from the bevel gear.

[0009] Optionally, a guide groove is provided on the outer wall of the top of the base, and the connecting block is slidably installed on the inner wall of the guide groove.

[0010] Optionally, both the lower and upper shells are provided with multiple baffles, and multiple silicon carbide heat exchange tubes are interspersed between the multiple baffles. The tube sheet is provided with multiple through holes, and the two ends of the silicon carbide heat exchange tubes are sequentially installed inside the tube sheet on the same side, with one end of the silicon carbide heat exchange tube located inside the corresponding through hole.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] When the internal components of the heat exchanger of this invention need to be cleaned or replaced, rotating the rotating rod drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, which in turn drives the rotating shaft to rotate. The rotating shaft drives the main gear to rotate, which in turn drives the two rack plates to move in opposite directions. This, in turn, drives the end caps on both sides to move away from each other through the connecting block. The end caps on both sides then cause the tube plates on both sides to separate from the lower shell and the upper shell. Then, pulling the pull rods on both sides causes the locking blocks to move horizontally in the sliding groove and compress the spring. After the locking blocks are removed from the locking groove, the mounting blocks on both sides are pulled vertically upward and removed from the mounting groove, thus separating the mounting base from the mounting block, thereby separating the lower shell from the upper shell, allowing the internal components to be cleaned or replaced. This invention enables the quick disassembly and assembly of the heat exchanger's main shell, facilitating the cleaning or replacement of internal components. Attached Figure Description

[0013] 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.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the lower shell of this utility model;

[0016] Figure 3 This is a schematic diagram of the upper shell of this utility model;

[0017] Figure 4 This is a cross-sectional view of the mounting base of this utility model;

[0018] Figure 5 This is a schematic diagram of the tube sheet structure of this utility model;

[0019] Figure 6 This is a cross-sectional structural diagram of the base of this utility model.

[0020] In the diagram: 1. Base; 2. Lower shell; 3. Upper shell; 4. Mounting seat; 5. Mounting groove; 6. Mounting block; 7. Slot; 8. Slide groove; 9. Locking block; 10. Pull rod; 11. Spring; 12. Sealing groove one; 13. Sealing strip one; 14. Tube sheet; 15. End cap; 16. Sealing frame; 17. Sealing groove two; 18. Sealing strip two; 19. Empty groove; 20. Rotating shaft; 21. Drive assembly; 211. Rotating rod; 212. Bevel gear one; 213. Bevel gear two; 214. Knob; 22. Main gear; 23. Slide rod; 24. Rack plate; 25. Connecting block; 26. Guide groove; 27. Baffle plate; 28. Silicon carbide heat exchange tube; 29. ​​Through hole. 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 1-6The present invention will now be described. A novel sealed silicon carbide tubular heat exchanger includes a base 1, a lower shell 2 fixedly mounted on the top of the base 1, and an upper shell 3 fixedly mounted on the top of the lower shell 2. The lower shell 2 and the upper shell 3 form the main outer shell of the heat exchanger. A tube sheet 14 is fixedly mounted on the opposite side of the lower shell 2 and the upper shell 3. An end cap 15 is fixedly mounted on the other end of the tube sheet 14. The tube sheet 14 and the end cap 15 seal the lower shell 2 and the upper shell 3. Mounting seats 4 are fixedly mounted on both the left and right sides of the outer wall of the lower shell 2. The outer wall of the top of the mounting seat 4 has a mounting groove 5. Mounting blocks 6 are fixedly mounted on both the left and right sides of the outer wall of the upper shell 3. The mounting blocks 6 are located inside the mounting grooves 5. The mounting blocks 6 have slots 7. The interior of the mounting seat 4 has a sliding groove 8. The sliding groove 8 connects with the mounting block 3. The mounting groove 5 is connected, and a locking block 9 is slidably installed on the inner wall of the sliding groove 8. One end of the locking block 9 extends into the interior of the locking groove 7, and a pull rod 10 is fixedly installed on the end of the locking block 9 away from the mounting block 6. The other end of the pull rod 10 extends to the outside of the mounting base 4, and a spring 11 is sleeved on the outside of the pull rod 10. The spring 11 is fixedly installed between the sliding groove 8 and the locking block 9, and the spring 11 serves to limit the locking block 9. When it is necessary to separate the lower housing 2 from the upper housing 3, pull the pull rods 10 on both sides. The pull rods 10 drive the locking block 9 to move horizontally in the sliding groove 8 and compress the spring 11. When the locking block 9 moves out of the locking groove 7, the mounting blocks 6 on both sides are pulled vertically upward and removed from the mounting groove 5, thereby realizing the separation of the mounting base 4 from the mounting block 6, thus allowing the lower housing 2 to be separated from the upper housing 3. Body 2 is separated from upper shell 3; when it is necessary to fix lower shell 2 and upper shell 3, pull the two pull rods 10, pull rod 10 drives the locking block 9 to move horizontally in the slide groove 8, and squeezes the spring 11, aligning the bottom end of the mounting block 6 with the mounting groove 5 and inserting it. When it contacts the inner wall of the bottom end of the mounting groove 5, release the two pull rods 10, and the locking block 9 moves horizontally into the locking groove 7 under the elastic force of the spring 11, fixing the mounting block 6, thereby fixing lower shell 2 and upper shell 3. The base 1 has an empty groove 19 inside, and a rotating shaft 20 is rotatably connected to the middle of the bottom end of the inner wall of the empty groove 19. The top end of the rotating shaft 20 is fixedly installed with a main gear 22. Two sliding rods 23 are arranged parallel to each other on the front and rear sides of the main gear 22. The outer side of the sliding rod 23 is slidably installed. The device is equipped with rack plates 24, two rack plates 24 are symmetrically distributed around the main gear 22, and the rack plates 24 are meshed with the main gear 22. A connecting block 25 is fixedly installed on the top of the rack plate 24, and the top of the connecting block 25 is fixedly installed on the bottom of the end cover 15. A drive assembly 21 is installed inside the slot 19. The drive assembly 21 can drive the rotating shaft 20 to rotate. When it is necessary to separate the tube plate 14 from the lower housing 2 and the upper housing 3, the drive assembly 21 drives the rotating shaft 20 to rotate, thereby driving the main gear 22 to rotate, which in turn drives the two rack plates 24 to move in opposite directions. Thus, the connecting block 25 drives the end covers 15 on both sides to move away from each other, and the end covers 15 on both sides drive the tube plates 14 on both sides to separate from the lower housing 2 and the upper housing 3.When it is necessary to use the two side tube sheets 14 to seal the lower housing 2 and the upper housing 3, the reverse drive can be achieved through the drive assembly 21.

[0026] This utility model provides a novel sealed silicon carbide tubular heat exchanger, which, compared with the prior art, allows for the rapid disassembly of the external structure of the heat exchanger after prolonged use, enabling quick cleaning or replacement of internal components without affecting the rapid use of the heat exchanger in the future.

[0027] In another embodiment of this utility model, please refer to Figure 2 and Figure 3 A sealing groove 12 is provided on the outer wall of the top of the lower housing 2, and a sealing strip 13 is fixedly installed at the bottom of the upper housing 3. The sealing strip 13 is fitted into the sealing groove 12. By setting the sealing groove 12 and the sealing strip 13, when the mounting block 6 is fixed in the mounting base 4, the sealing groove 12 is also fitted into the sealing strip 13, which further ensures the sealing between the lower housing 2 and the upper housing 3.

[0028] In another embodiment of this utility model, please refer to Figure 2 , Figure 3 and Figure 5 Sealing frames 16 are fixedly installed on the outer walls of both sides of the lower housing 2 and the upper housing 3. Sealing grooves 17 are provided on the sealing frames 16. Sealing strips 18 are fixedly installed on the outer wall of the tube sheet 14. Sealing strips 18 are fitted into the sealing grooves 17. By setting the sealing grooves 17 and sealing strips 18, the sealing between the tube sheets 14 on both sides and the lower housing 2 and the upper housing 3 is further guaranteed.

[0029] In another embodiment of this utility model, please refer to Figure 6 The drive assembly 21 includes a rotating rod 211, which is movably installed inside the slot 19 and extends through the base 1. A bevel gear 212 is fixedly installed at one end of the rotating rod 211, and a bevel gear 213 is fixedly installed on the outer side of the rotating shaft 20. A knob 214 is fixedly installed at the end of the rotating rod 211 away from the bevel gear 212. By rotating the rotating rod 211, the bevel gear 212 is driven to rotate, which in turn drives the bevel gear 213 to rotate, and in turn drives the rotating shaft 20 to rotate.

[0030] In another embodiment of this utility model, please refer to Figure 1 The outer wall of the top of the base 1 is provided with a guide groove 26, and the connecting block 25 is slidably installed on the inner wall of the guide groove 26. The guide groove 26 plays a limiting role in the horizontal movement of the connecting block 25.

[0031] In another embodiment of this utility model, please refer to Figure 2 , Figure 3 and Figure 5Both the lower shell 2 and the upper shell 3 are equipped with multiple baffles 27 to improve heat transfer efficiency. Multiple silicon carbide heat exchange tubes 28 are interspersed between the multiple baffles 27. Multiple through holes 29 are provided on the tube sheet 14. The two ends of the silicon carbide heat exchange tubes 28 are installed in sequence inside the tube sheet 14 on the same side. One end of the silicon carbide heat exchange tube 28 is located inside the corresponding through hole 29, which further ensures the sealing effect.

[0032] The above are merely preferred embodiments of the present utility model and are 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 new type of sealed silicon carbide tubular heat exchanger comprising a base (1), characterized in that: A lower housing (2) is fixedly installed at the top of the base (1), and an upper housing (3) is fixedly installed above the lower housing (2). A tube plate (14) is fixedly installed on the opposite side of the lower housing (2) and the upper housing (3). An end cap (15) is fixedly installed at the other end of the tube plate (14). Mounting seats (4) are fixedly installed on both the left and right sides of the outer wall of the lower housing (2). An installation groove (5) is opened on the outer wall of the top of the mounting seat (4). Mounting blocks (6) are fixedly installed on both the left and right sides of the outer wall of the upper housing (3). The mounting blocks (6) are located inside the mounting groove (5). (6) has a slot (7) and a sliding groove (8) is provided inside the mounting base (4). The sliding groove (8) is connected to the mounting groove (5). A locking block (9) is slidably installed on the inner wall of the sliding groove (8). One end of the locking block (9) extends into the inside of the slot (7). A pull rod (10) is fixedly installed on the end of the locking block (9) away from the mounting block (6). The other end of the pull rod (10) extends to the outside of the mounting base (4). A spring (11) is sleeved on the outside of the pull rod (10). The spring (11) is fixedly installed between the sliding groove (8) and the locking block (9). The base (1) has an internal slot (19). A rotating shaft (20) is rotatably connected to the middle of the bottom of the inner wall of the slot (19). A main gear (22) is fixedly installed at the top of the rotating shaft (20). Two sliding rods (23) are arranged parallel to each other on the front and rear sides of the main gear (22). A rack plate (24) is slidably installed on the outer side of the sliding rod (23). The two rack plates (24) are symmetrically distributed with the main gear (22) as the center. The rack plate (24) meshes with the main gear (22). A connecting block (25) is fixedly installed at the top of the rack plate (24). The top of the connecting block (25) is fixedly installed with the bottom of the end cover (15). A drive assembly (21) is installed inside the slot (19).

2. A new type of sealed silicon carbide tube heat exchanger according to claim 1, characterized in that: The outer wall of the top of the lower housing (2) is provided with a sealing groove (12), and a sealing strip (13) is fixedly installed at the bottom of the upper housing (3). The sealing strip (13) is fitted into the sealing groove (12).

3. A new type of sealed silicon carbide tube heat exchanger according to claim 1, characterized in that: Sealing frames (16) are fixedly installed on the outer walls of both sides of the lower shell (2) and the upper shell (3). A second sealing groove (17) is opened on the sealing frame (16). A second sealing strip (18) is fixedly installed on the outer wall of the tube plate (14). The second sealing strip (18) is fitted into the second sealing groove (17).

4. A new type of sealed silicon carbide tube heat exchanger according to claim 1, characterized in that: The drive assembly (21) includes a rotating rod (211), which is movably installed inside the slot (19) and movably passes through the base (1). One end of the rotating rod (211) is fixedly installed with a bevel gear (212), and the outer side of the rotating shaft (20) is fixedly installed with a bevel gear (213). The end of the rotating rod (211) away from the bevel gear (212) is fixedly installed with a knob (214).

5. A new type of sealed silicon carbide tube heat exchanger according to claim 1, characterized in that: The outer wall of the top of the base (1) is provided with a guide groove (26), and the connecting block (25) is slidably installed on the inner wall of the guide groove (26).

6. A new type of sealed silicon carbide tube heat exchanger as claimed in claim 1, characterized in that: Both the lower shell (2) and the upper shell (3) are provided with multiple baffles (27), and multiple silicon carbide heat exchange tubes (28) are interspersed between the multiple baffles (27). The tube sheet (14) is provided with multiple through holes (29). The two ends of the silicon carbide heat exchange tubes (28) are sequentially installed inside the tube sheet (14) on the same side, and one end of the silicon carbide heat exchange tubes (28) is located inside the corresponding through hole (29).

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