Sealing structure for molten salt pump, mounting method and molten salt pump

Abstract

The invention relates to the technical field of molten salt pumps, provides a sealing structure for a molten salt pump, a mounting method and the molten salt pump, and aims to avoid leakage at the joint of a connecting pipe and a molten salt pump body and reduce the possibility of leakage by avoiding a gap generated by displacement between the connecting pipe and the molten salt pump body, so that the sealing performance is better, the practicability is stronger, and the service life of the molten salt pump is prolonged. Comprising a molten salt pump body, a connecting pipe, a positioning assembly, a fixing ring, a connecting ring, a connecting assembly and a sealing assembly, the connecting pipe is arranged in the molten salt pump body, the positioning assembly is arranged on the connecting pipe and used for fixing the position of the connecting pipe to the molten salt pump body, the fixing ring is fixedly connected to the molten salt pump body, and the connecting ring is fixedly connected to a connecting plate. The connecting assembly is arranged on the fixing ring and used for connecting the fixing ring and the connecting ring, and the sealing assembly is arranged on the fixing ring and the connecting ring and used for further sealing a gap between the connecting pipe and the molten salt pump body.

Description

Technical Field

[0001] The present invention relates to the technical field of molten salt pumps, and particularly to a sealing structure, an installation method and a molten salt pump for a molten salt pump. Background Art

[0002] A molten salt pump is a pump used to transport high-temperature metal salts, and is used for the transportation of high-temperature nitrates, nitrites, ion-exchange membrane caustic soda, etc., and is also widely used in chemical processes such as melamine, salt production, soda production, and urea. In order to ensure the good use of the molten salt pump, the sealing performance of the molten salt pump plays a very important role.

[0003] In an existing sealing structure, installation method and molten salt pump for a molten salt pump, the patent publication number is CN114837991B. Through the protrusions and grooves provided on the side surfaces where the sealing body and the shaft sleeve cooperate with each other, and by means of a card, a certain axial clearance is always reserved between the protrusions and the grooves, and the upper and lower surfaces of the protrusions and the inner surface of the groove never come into contact. The setting of this clearance has two functions. On the one hand, it allows a small amount of nitrogen to leak through this clearance, forming a leak channel similar to a snake shape. Therefore, compared with the existing packing seal, the resistance to nitrogen leakage is increased, so that only a small amount of nitrogen leaks, achieving the effect of effectively sealing nitrogen, ensuring that there is enough pressure of nitrogen to purge the molten salt that overflows from the throttling seal into the throttle pipe back into the molten salt tank, thereby ensuring that the molten salt pumped by the molten salt pump does not overflow, and making the molten salt pump achieve a leak-free sealing effect. On the other hand, there is no contact and no friction part between the shaft sleeve and the sealing body, so that the sealing structure can be used for a long time without being damaged and without wearing parts.

[0004] However, in the above-mentioned existing technical solution, the connection between the liquid inlet pipe and the molten salt pump is only fixed by bolts, and there are still sealing problems and a risk of leakage. Summary of the Invention

[0005] Aiming at the deficiencies of the prior art, the present invention provides a sealing structure, an installation method and a molten salt pump for a molten salt pump to solve the problem of the risk of leakage in the connection between the liquid inlet pipe and the molten salt pump in the prior art proposed in the background art.

[0006] To achieve the above object, the present invention provides the following technical solution: A sealing structure for a molten salt pump, comprising a molten salt pump body, a connecting pipe, a positioning component, a fixing ring, a connecting ring, a connecting component and a sealing component. The connecting pipe is arranged inside the molten salt pump body. The positioning component is arranged on the connecting pipe and is used to fix the position of the connecting pipe to the molten salt pump body. The fixing ring is fixedly connected to the molten salt pump body. The connecting ring is fixedly connected to the connecting plate. The connecting component is arranged on the fixing ring and is used to connect the fixing ring and the connecting ring. The sealing component is arranged on the fixing ring and the connecting ring and is used to further seal the gap between the connecting pipe and the molten salt pump body.

[0007] Preferably, the positioning component includes a sleeved ring, sliding blocks, connecting rods, top blocks and a concentrating component. The sleeved ring is fixedly sleeved on the connecting pipe. There are multiple sliding blocks, and multiple sliding blocks are all slidably connected to the sleeved ring. There are multiple connecting rods, and multiple connecting rods are respectively fixedly connected to multiple sliding blocks. There are multiple top blocks, and multiple top blocks are respectively fixedly connected to multiple connecting rods. The concentrating component is arranged on the sleeved ring and is used to drive multiple sliding blocks to slide concentrically.

[0008] Further, the concentric sliding includes a rotating ring, driving rods and a rotating driving component. The rotating ring is rotatably connected to the sleeved ring, and multiple arc-shaped grooves are formed on the rotating ring. There are multiple driving rods, and multiple driving rods are respectively fixedly connected to multiple sliding blocks, and multiple driving rods are respectively arranged in multiple arc-shaped grooves. The rotating driving component is arranged on the sleeved ring and is used to drive the rotating ring to rotate.

[0009] Still further, the rotating driving component includes a fixing frame, a rotating rod, a rotating gear, a half gear and a first motor. The fixing frame is fixedly connected to the sleeved ring. The rotating rod is rotatably connected between the fixing frame and the sleeved ring. The rotating gear is fixedly sleeved on the rotating rod. The half gear is fixedly connected to the rotating ring, and the half gear meshes with the rotating gear. The first motor is fixedly installed on the fixing frame, and the output end of the first motor penetrates through the fixing frame and is concentrically connected to the rotating rod.

[0010] Even further, two clamping rings are fixedly connected to the molten salt pump body, and the top blocks are arranged between the two clamping rings.

[0011] Preferably, on the basis of the foregoing solution, the connection component includes a limit block, a clamping block, a central rod, a telescopic spring and a disassembly component. A plurality of the limit blocks are provided, and the plurality of limit blocks are fixedly connected to the fixed ring. A limit groove matching the limit block is formed on the connection ring. Two clamping blocks are provided, and the two clamping blocks are both slidably connected to the limit block. A clamping groove matching the clamping block is formed on the connection ring, and the clamping groove communicates with the limit groove. An arc is provided on the clamping block. The central rod is slidably sleeved on the two clamping blocks. The telescopic spring is connected between the two clamping blocks and sleeved on the central rod. The disassembly component is arranged on the limit block and used to drive the two clamping blocks to slide into the limit block.

[0012] Further, on the basis of the foregoing solution, the disassembly component includes a rotating base, a rotating plate, a rotating table, a metal rod, a sliding rod, a sliding ring, a magnetic attraction block and a handle. Two rotating bases are provided, and the two rotating bases are respectively fixedly connected to the two clamping blocks. Two rotating plates are provided, and the two rotating plates are respectively rotatably sleeved on the two rotating bases. The rotating table is rotatably sleeved on the two rotating plates and slidably connected to the limit block. The metal rod is fixedly connected to the rotating table, and the extension pipe penetrates through the limit block and extends to the outside. A through groove matching the metal rod is formed on the connection ring. A plurality of sliding rods are provided, and the plurality of sliding rods are all fixedly connected to the connection ring. The sliding ring is slidably sleeved on the plurality of sliding rods. A plurality of magnetic attraction blocks are provided, and the plurality of magnetic attraction blocks are all fixedly connected to the sliding ring, and the magnetic attraction block attracts the metal rod. The handle is fixedly connected to the sliding ring.

[0013] Still further, on the basis of the foregoing solution, the sealing component includes a sealing cover, a base and an approaching component. Two sealing covers are provided, and the two sealing covers cover the connection ring and the fixed ring. The base is slidably connected to the two sealing covers. The approaching component is arranged on the base and used to drive the two sealing covers to slide towards each other.

[0014] Furthermore, on the basis of the foregoing solution, the approaching component includes a bidirectional screw rod, a threaded block and a second motor. The bidirectional screw rod is rotatably connected to the base. Two threaded blocks are provided, and the two threaded blocks are both threadedly sleeved on the bidirectional screw rod. The two threaded blocks are both slidably connected to the base. The two threaded blocks are respectively fixedly connected to the two sealing covers. The second motor is fixedly installed on the base, and the output end of the second motor penetrates through the base and is concentrically connected to the bidirectional screw rod.

[0015] An installation method for a sealing structure of a molten salt pump includes the following steps:

[0016] S1. First, sleeved the molten salt pump body onto the connecting pipe. The output end of the first motor drives the rotating rod to rotate. The rotating rod drives the rotating gear to rotate. The rotating gear drives the semi-gear to perform circular motion. The semi-gear drives the rotating ring to rotate. The rotation of the rotating ring drives multiple driving rods to move in multiple arc-shaped grooves. The driving rods drive the sliding block to rotate. Then, the connecting rod can be used to drive the top block to move, so that multiple top blocks contact the inner wall of the molten salt pump body and the top blocks are stuck between two clamping rings.

[0017] S2. At this time, the limiting block on the fixing ring enters the limiting groove on the connecting ring, and the clamping block enters the clamping groove, so as to connect the fixing ring and the connecting ring.

[0018] S3. Then, cover two sealing covers on the fixing ring and the connecting ring. The output end of the second motor drives the bidirectional screw rod to rotate. The rotation of the bidirectional screw rod drives two threaded blocks to slide towards each other. The two threaded blocks drive the two sealing covers to move towards each other, so as to seal the fixing ring and the connecting ring.

[0019] In summary, the present invention includes at least one of the following beneficial technical effects:

[0020] For the sealing structure, installation method and molten salt pump of the molten salt pump, the position of the connecting pipe is fixed to the molten salt pump body through the positioning component, avoiding the displacement between the connecting pipe and the molten salt pump body to generate gaps. The fixing ring and the connecting ring are connected through the connecting component, and the gap between the connecting pipe and the molten salt pump body is further sealed through the sealing component, avoiding leakage at the connection between the connecting pipe and the molten salt pump body. Therefore, for the sealing structure, installation method and molten salt pump of the molten salt pump, it is convenient to avoid leakage at the connection between the connecting pipe and the molten salt pump body, and by avoiding the displacement between the connecting pipe and the molten salt pump body to generate gaps, the possibility of leakage is reduced, and the sealing performance is good. Brief Description of the Drawings

[0021] Figure 1 is the schematic structural diagram of the whole of the present invention;

[0022] Figure 2 is the schematic structural diagram of the cooperation of the connecting pipe, fixing ring and connecting ring, etc. of the present invention;

[0023] Figure 3 is the schematic structural diagram of the cooperation of the connecting pipe, top block and rotating ring, etc. of the present invention;

[0024] Figure 4 is the schematic structural diagram of the cooperation of the connecting rod, top block and rotating ring, etc. of the present invention;

[0025] Figure 5Schematic diagram of the partial cross-section of the cooperation of the fixing frame, rotating rod, rotating gear, etc. of the present invention;

[0026] Figure 6 Schematic diagram of the structure of another angle of the whole of the present invention;

[0027] Figure 7 Schematic diagram of the structure of another angle of the cooperation of the sleeve ring, connecting rod, clamping ring, etc. of the present invention;

[0028] Figure 8 Schematic diagram of the structure of another angle of the cooperation of the connecting rod, top block, rotating ring, etc. of the present invention;

[0029] Figure 9 Schematic diagram of the structure of another angle of the disassembly of the cooperation of the sliding block, connecting rod, top block, etc. of the present invention;

[0030] Figure 10 Schematic diagram of the disassembly structure of the cooperation of the fixing ring, connecting ring, limiting block, etc. of the present invention;

[0031] Figure 11 Schematic diagram of the partial cross-section of the cooperation of the limiting block, clamping block, telescopic spring, etc. of the present invention;

[0032] Figure 12 Schematic diagram of the partial cross-section of the cooperation of the telescopic spring, rotating base, rotating plate, etc. of the present invention;

[0033] Figure 13 Schematic diagram of the structure of the cooperation of the rotating base, rotating plate, rotating table, etc. of the present invention;

[0034] Figure 14 Schematic diagram of the structure of the cooperation of the sealing cover, base, bidirectional screw, etc. of the present invention;

[0035] Figure 15 Schematic diagram of the partial cross-section of the cooperation of the sealing cover, base, bidirectional screw, etc. of the present invention.

[0036] In the figure: 1. Molten salt pump body; 2. Connecting pipe; 3. Fixing ring; 4. Connecting ring; 5. Sleeve ring; 6. Sliding block; 7. Connecting rod; 8. Top block; 9. Rotating ring; 10. Driving rod; 11. Fixing frame; 12. Rotating rod; 13. Rotating gear; 14. Half gear; 15. First motor; 16. Clamping ring; 17. Limiting block; 18. Clamping block; 19. Central rod; 20. Telescopic spring; 21. Rotating base; 22. Rotating plate; 23. Rotating table; 24. Metal rod; 25. Sliding rod; 26. Sliding ring; 27. Magnetic attraction block; 28. Handle; 29. Sealing cover; 30. Base; 31. Bidirectional screw; 32. Threaded block; 33. Second motor. Detailed implementation manners

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0038] The present invention will be further described in detail below with reference to the accompanying drawings of the specification.

[0039] Embodiment 1

[0040] Refer to Figures 1 to 15, A sealing structure for a molten salt pump, comprising a molten salt pump body 1, a connecting pipe 2, a positioning assembly, a fixing ring 3, a connecting ring 4, a connecting assembly and a sealing assembly. The connecting pipe 2 is arranged inside the molten salt pump body 1. The positioning assembly is arranged on the connecting pipe 2 and is used to fix the position of the connecting pipe 2 to the molten salt pump body 1. The positioning assembly includes a sleeving ring 5, sliding blocks 6, connecting rods 7, top blocks 8 and a concentrating assembly. The sleeving ring 5 is fixedly sleeved on the connecting pipe 2. There are multiple sliding blocks 6, and multiple sliding blocks 6 are all slidably connected to the sleeving ring 5. There are multiple connecting rods 7, and multiple connecting rods 7 are respectively fixedly connected to multiple sliding blocks 6. There are multiple top blocks 8, and multiple top blocks 8 are respectively fixedly connected to multiple connecting rods 7. The concentrating assembly is arranged on the sleeving ring 5 and is used to drive multiple sliding blocks 6 to slide concentrically. The concentric sliding includes a rotating ring 9, driving rods 10 and a rotating driving assembly. The rotating ring 9 is rotatably connected to the sleeving ring 5, and multiple arc-shaped grooves are formed on the rotating ring 9. There are multiple driving rods 10, and multiple driving rods 10 are respectively fixedly connected to multiple sliding blocks 6, and multiple driving rods 10 are respectively arranged in multiple arc-shaped grooves. The rotating driving assembly is arranged on the sleeving ring 5 and is used to drive the rotating ring 9 to rotate. The rotating driving assembly includes a fixing frame 11, a rotating rod 12, a rotating gear 13, a half gear 14 and a first motor 15. The fixing frame 11 is fixedly connected to the sleeving ring 5. The rotating rod 12 is rotatably connected between the fixing frame 11 and the sleeving ring 5. The rotating gear 13 is fixedly sleeved on the rotating rod 12. The half gear 14 is fixedly connected to the rotating ring 9, and the half gear 14 meshes with the rotating gear 13. The first motor 15 is fixedly installed on the fixing frame 11. The output end of the first motor 15 penetrates the fixing frame 11 and is concentrically connected to the rotating rod 12. The output end of the first motor 15 drives the rotating rod 12 to rotate. The rotating rod 12 drives the rotating gear 13 to rotate. The rotating gear 13 drives the half gear 14 to perform a circular motion. The half gear 14 drives the rotating ring 9 to rotate. The rotation of the rotating ring 9 drives multiple driving rods 10 to move in multiple arc-shaped grooves. The driving rods 10 drive the sliding blocks 6 to rotate, and then the top blocks 8 can be driven to move through the connecting rods 7, so that multiple top blocks 8 contact the inner side wall of the molten salt pump body 1, and the position of the connecting pipe 2 can be positioned. Two clamping rings 16 are fixedly connected to the molten salt pump body 1. The top blocks 8 are arranged between the two clamping rings 16. By clamping multiple top blocks 8 between the two clamping rings 16, the position of the connecting pipe 2 is further positioned, so that the molten salt pump body 1 and the connecting pipe 2 are not prone to displacement, and thus leakage is not prone to occur, and the sealing performance is good.

[0041] Refer to Figures 1 to 15, the fixed ring 3 is fixedly connected to the molten salt pump body 1, the connecting ring 4 is fixedly connected to the connecting plate, and the connecting component is arranged on the fixed ring 3 for connecting the fixed ring 3 and the connecting ring 4. The connecting component includes a limiting block 17, a clamping block 18, a central rod 19, a telescopic spring 20 and a disassembly component. There are multiple limiting blocks 17, and the multiple limiting blocks 17 are all fixedly connected to the fixed ring 3. A limiting groove matching the limiting block 17 is opened on the connecting ring 4. There are two clamping blocks 18, and the two clamping blocks 18 are both slidably connected to the limiting block 17. A clamping groove matching the clamping block 18 is opened on the connecting ring 4. The clamping groove communicates with the limiting groove. An arc is arranged on the clamping block 18 to facilitate the clamping block 18 to enter the clamping groove. The central rod 19 is slidably sleeved on the two clamping blocks 18. The telescopic spring 20 is connected between the two clamping blocks 18 and is sleeved on the central rod 19. The disassembly component is arranged on the limiting block 17 for driving the two clamping blocks 18 to slide into the limiting block 17. The disassembly component includes a rotating seat 21, a rotating plate 22, a rotating table 23, a metal rod 24, a sliding rod 25, a sliding ring 26, a magnetic attraction block 27 and a handle 28. There are two rotating seats 21, and the two rotating seats 21 are respectively fixedly connected to the two clamping blocks 18. There are two rotating plates 22, and the two rotating plates 22 are respectively rotatably sleeved on the two rotating seats 21. The rotating table 23 is rotatably sleeved on the two rotating plates 22 and is slidably connected to the limiting block 17. The metal rod 24 is fixedly connected to the rotating table 23 and extends through the limiting block 17 to the outside. A through groove matching the metal rod 24 is opened on the connecting ring 4. There are multiple sliding rods 25, and the multiple sliding rods 25 are all fixedly connected to the connecting ring 4. The sliding ring 26 is slidably sleeved on the multiple sliding rods 25. There are multiple magnetic attraction blocks 27, and the multiple magnetic attraction blocks 27 are all fixedly connected to the sliding ring 26 and the magnetic attraction block 27 attracts the metal rod 24. The handle 28 is fixedly connected to the sliding ring 26. When the limiting block 17 on the fixed ring 3 enters the limiting groove on the connecting ring 4 and the clamping block 18 enters the clamping groove, the fixed ring 3 and the connecting ring 4 can be connected, so that the connecting pipe 2 is connected to the molten salt pump body 1. When it is necessary to disassemble the connecting pipe 2 and the molten salt pump body 1, hold the handle 28 to drive the sliding ring 26 to slide on the multiple sliding rods 25. Through the attraction of the magnetic attraction block 27 to the metal rod 24, drive the metal rod 24 to move. The metal rod 24 drives the rotating table 23 to slide. The rotating table 23 drives the two rotating plates 22 to rotate. The two rotating plates 22 drive the two rotating seats 21 to move towards each other, so as to drive the two clamping blocks 18 to enter the limiting block 17, and the telescopic spring 20 elastically contracts, and the fixed ring 3 and the connecting ring 4 can be disassembled.

[0042] Refer to Figures 1 to 15, A sealing assembly is arranged on the fixed ring 3 and the connecting ring 4 to further seal the gap between the connecting pipe 2 and the molten salt pump body 1. The sealing assembly includes a sealing cover 29, a base 30 and an opposing assembly. There are two sealing covers 29, and both of the two sealing covers 29 cover the connecting ring 4 and the fixed ring 3. The base 30 is slidably connected to the two sealing covers 29. The opposing assembly is arranged on the base 30 and is used to drive the two sealing covers 29 to slide towards each other. The opposing assembly includes a bidirectional screw 31, threaded blocks 32 and a second motor 33. The bidirectional screw 31 is rotatably connected to the base 30. There are two threaded blocks 32, and both of the two threaded blocks 32 are threadedly sleeved on the bidirectional screw 31. Both of the two threaded blocks 32 are slidably connected to the base 30. The two threaded blocks 32 are respectively fixedly connected to the two sealing covers 29. The second motor 33 is fixedly installed on the base 30, and the output end of the second motor 33 penetrates the base 30 and is concentrically connected to the bidirectional screw 31. After covering the two sealing covers 29 on the fixed ring 3 and the connecting ring 4, the output end of the second motor 33 drives the bidirectional screw 31 to rotate. The rotation of the bidirectional screw 31 drives the two threaded blocks 32 to slide towards each other. The two threaded blocks 32 drive the two sealing covers 29 to move towards each other, and thus the fixed ring 3 and the connecting ring 4 can be sealed, and further seal the gap between the connecting pipe 2 and the molten salt pump body 1.

[0043] Embodiment 2

[0044] In summary, for the sealing structure of the molten salt pump, during use, first, the molten salt pump body 1 is sleeved on the connecting pipe 2. The output end of the first motor 15 drives the rotating rod 12 to rotate. The rotating rod 12 drives the rotating gear 13 to rotate. The rotating gear 13 drives the semi-gear 14 to perform a circular motion. The semi-gear 14 drives the rotating ring 9 to rotate. The rotation of the rotating ring 9 drives a plurality of driving rods 10 to move in a plurality of arc-shaped grooves. The driving rods 10 drive the sliding block 6 to rotate, and then the connecting rod 7 can be used to drive the top block 8 to move, so that a plurality of top blocks 8 contact the inner wall of the molten salt pump body 1 and the top blocks 8 are stuck between the two clamping rings 16.

[0045] At this time, the limiting block 17 on the fixed ring 3 enters the limiting groove on the connecting ring 4, and the clamping block 18 enters the clamping groove, and thus the fixed ring 3 and the connecting ring 4 can be connected.

[0046] Then, the two sealing covers 29 are covered on the fixed ring 3 and the connecting ring 4. The output end of the second motor 33 drives the bidirectional screw 31 to rotate. The rotation of the bidirectional screw 31 drives the two threaded blocks 32 to slide towards each other. The two threaded blocks 32 drive the two sealing covers 29 to move towards each other, and thus the fixed ring 3 and the connecting ring 4 can be sealed.

[0047] The above-described embodiments merely represent specific implementation manners of the present invention. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A sealing structure for a molten salt pump, comprising a molten salt pump body (1), characterized in that, Further included are: A connecting pipe (2), which is arranged inside the molten salt pump body (1); A positioning component, which is arranged on the connecting pipe (2) and is used to fix the position of the connecting pipe (2) to the molten salt pump body (1); A fixing ring (3), which is fixedly connected to the molten salt pump body (1); A connecting ring (4), which is fixedly connected to the connecting plate; A connecting component, which is arranged on the fixing ring (3) and is used to connect the fixing ring (3) and the connecting ring (4); A sealing component, which is arranged on the fixing ring (3) and the connecting ring (4) and is used to further seal the gap between the connecting pipe (2) and the molten salt pump body (1).

2. The sealing structure for a molten salt pump according to claim 1, characterized in that, The positioning component includes: A sleeving ring (5), which is fixedly sleeved on the connecting pipe (2); Sliding blocks (6), a plurality of which are provided, and the plurality of sliding blocks (6) are all slidably connected to the sleeving ring (5); Connecting rods (7), a plurality of which are provided, and the plurality of connecting rods (7) are respectively fixedly connected to the plurality of sliding blocks (6); Top blocks (8), a plurality of which are provided, and the plurality of top blocks (8) are respectively fixedly connected to the plurality of connecting rods (7); A concentrating component, which is arranged on the sleeving ring (5) and is used to drive the plurality of sliding blocks (6) to slide concentrically.

3. A sealing structure for a molten salt pump according to claim 2, characterized in that, The concentric sliding includes: A rotating ring (9), which is rotatably connected to the sleeving ring (5), and a plurality of arc-shaped grooves are formed on the rotating ring (9); Driving rods (10), a plurality of which are provided, and the plurality of driving rods (10) are respectively fixedly connected to the plurality of sliding blocks (6), and the plurality of driving rods (10) are respectively arranged in the plurality of arc-shaped grooves; A rotating driving component, which is arranged on the sleeving ring (5) and is used to drive the rotating ring (9) to rotate.

4. A sealing structure for a molten salt pump according to claim 3, characterized in that, The rotating driving component includes: A fixing frame (11), which is fixedly connected to the sleeving ring (5); A rotating rod (12), which is rotatably connected between the fixing frame (11) and the sleeving ring (5); A rotating gear (13), which is fixedly sleeved on the rotating rod (12); A half gear (14), which is fixedly connected to the rotating ring (9), and the half gear (14) is meshed with the rotating gear (13); A first motor (15), which is fixedly installed on the fixing frame (11), and the output end of the first motor (15) penetrates through the fixing frame (11) and is concentrically connected to the rotating rod (12).

5. A sealing structure for a molten salt pump according to claim 4, characterized in that, Two clamping rings (16) are fixedly connected to the molten salt pump body (1), and the top blocks (8) are arranged between the two clamping rings (16).

6. The sealing structure for a molten salt pump according to claim 5, characterized in that, The connecting component includes: Limit blocks (17), a plurality of the limit blocks (17) are provided, and the plurality of limit blocks (17) are all fixedly connected to the fixed ring (3), and a limit groove matching the limit block (17) is provided on the connecting ring (4); Clamping blocks (18), two clamping blocks (18) are provided, and the two clamping blocks (18) are both slidably connected to the limit block (17), a clamping groove matching the clamping block (18) is provided on the connecting ring (4), the clamping groove communicates with the limit groove, and an arc is provided on the clamping block (18); Central rod (19), the central rod (19) is slidably sleeved on the two clamping blocks (18); Telescopic spring (20), the telescopic spring (20) is connected between the two clamping blocks (18), and the telescopic spring (20) is sleeved on the central rod (19); Dismantling assembly, the dismantling assembly is provided on the limit block (17) and is used to drive the two clamping blocks (18) to slide into the limit block (17).

7. The sealing structure for a molten salt pump according to claim 6, characterized in that, The dismantling assembly includes: Rotating seats (21), two rotating seats (21) are provided, and the two rotating seats (21) are respectively fixedly connected to the two clamping blocks (18); Rotating plates (22), two rotating plates (22) are provided, and the two rotating plates (22) are respectively rotatably sleeved on the two rotating seats (21); Rotating table (23), the rotating table (23) is rotatably sleeved on the two rotating plates (22), and the rotating table (23) is slidably connected to the limit block (17); Metal rod (24), the metal rod (24) is fixedly connected to the rotating table (23), and the extension tube penetrates through the limit block (17) and extends to the outside, and a through groove matching the metal rod (24) is provided on the connecting ring (4); Sliding rods (25), a plurality of sliding rods (25) are provided, and the plurality of sliding rods (25) are all fixedly connected to the connecting ring (4); Sliding ring (26), the sliding ring (26) is slidably sleeved on the plurality of sliding rods (25); Magnetic attraction blocks (27), a plurality of magnetic attraction blocks (27) are provided, and the plurality of magnetic attraction blocks (27) are all fixedly connected to the sliding ring (26), and the magnetic attraction blocks (27) attract the metal rod (24); Handle (28), the handle (28) is fixedly connected to the sliding ring (26).

8. A sealing structure for a molten salt pump according to claim 7, characterized in that, The sealing assembly includes: Sealing covers (29), two sealing covers (29) are provided, and the two sealing covers (29) both cover the connecting ring (4) and the fixed ring (3); Base (30), the base (30) is slidably connected to the two sealing covers (29); Opposing assembly, the opposing assembly is provided on the base (30) and is used to drive the two sealing covers (29) to slide towards each other.

9. A sealing structure for a molten salt pump according to claim 8, characterized in that, The opposing assembly includes: Bidirectional screw rod (31), the bidirectional screw rod (31) is rotatably connected to the base (30); Threaded blocks (32), two of said threaded blocks (32) are provided, both of said two threaded blocks (32) are threadedly sleeved on the bidirectional screw (31), both of said two threaded blocks (32) are slidably connected to the base (30), and the two threaded blocks (32) are respectively fixedly connected to the two sealing covers (29); A second motor (33), said second motor (33) is fixedly installed on the base (30), and the output end of the second motor (33) penetrates through the base (30) and is concentrically connected to the bidirectional screw (31).

10. A method for installing a sealing structure of a molten salt pump, characterized in that, Using a sealing structure for a molten salt pump according to any one of claims 1-9, comprising the following steps: S1. First, sleeved the molten salt pump body (1) onto the connecting pipe (2), the output end of the first motor (15) drives the rotating rod (12) to rotate, the rotating rod (12) drives the rotating gear (13) to rotate, the rotating gear (13) drives the half gear (14) to perform a circular motion, the half gear (14) drives the rotating ring (9) to rotate, the rotation of the rotating ring (9) drives a plurality of driving rods (10) to move in a plurality of arc-shaped grooves, the driving rod (10) drives the sliding block (6) to rotate, and then the connecting rod (7) can be used to drive the top block (8) to move, so that a plurality of top blocks (8) contact the inner wall of the molten salt pump body (1), and the top blocks (8) are stuck between the two clamping rings (16); S2. At this time, the limiting block (17) on the fixing ring (3) enters the limiting groove on the connecting ring (4), and the clamping block (18) enters the clamping groove, so as to connect the fixing ring (3) and the connecting ring (4); S3. Then, cover the two sealing covers (29) on the fixing ring (3) and the connecting ring (4), the output end of the second motor (33) drives the bidirectional screw (31) to rotate, the rotation of the bidirectional screw (31) drives the two threaded blocks (32) to slide towards each other, and the two threaded blocks (32) drive the two sealing covers (29) to move towards each other, so as to seal the fixing ring (3) and the connecting ring (4).

Images