Nitrogen protection closed cycle modular leak-proof drying device

Abstract

The utility model discloses a nitrogen protection closed cycle modular leakproof drying device, which belongs to the technical field of dryers, and comprises a U-shaped base, liquid pipelines are arranged at two ends of the top of the U-shaped base, circular sealing blocks are arranged on the outer sides of the liquid pipelines, and the circular sealing blocks are arranged on the outer sides of the liquid pipelines. A circular sealing ring is arranged at the position, located on the outer side of the liquid pipeline, of one end of each circular sealing block, the two symmetrically-arranged circular sealing blocks are adopted, uniform pressure is applied to the circular sealing blocks through an arc-shaped extrusion pipe driven by the sealing mechanism, a double-sealing barrier is formed, and gas leakage is effectively prevented. The binding force can be automatically adjusted according to pipeline deformation or pressure fluctuation, the constant sealing effect is kept, the modularized circular sealing ring and the circular sealing block can be independently replaced, and the defect that a traditional integral structure needs to be completely replaced is overcome.

Description

Technical Field

[0001] This utility model belongs to the field of dryer technology, specifically relating to a nitrogen-protected closed-loop modular leak-proof drying device. Background Technology

[0002] In the chemical, pharmaceutical, and food industries, nitrogen-protected closed-loop drying devices are widely used for drying oxygen-sensitive materials. These devices prevent material oxidation by establishing an inert gas environment, and their sealing performance directly affects the safety and operating efficiency of the equipment.

[0003] Currently, traditional single-layer sealing rings are prone to leakage during long-term operation or pressure fluctuations, which not only wastes protective gas but may also lead to increased oxygen concentration, affecting product quality. Existing sealing structures are mostly rigid connections, which cannot adapt to thermal expansion and contraction of pipelines due to temperature changes or equipment vibration, easily leading to seal failure. To address this, we have designed a nitrogen-protected closed-loop modular leak-proof drying device to provide an alternative technical solution to the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to provide a nitrogen-protected closed-loop modular leak-proof drying device to solve the problems in the use of the existing technology mentioned in the background.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a nitrogen-protected closed-loop modular leak-proof drying device, comprising a U-shaped base, liquid pipes at both ends of the top of the U-shaped base, a circular sealing block on the outside of the liquid pipes, a circular sealing ring at one end of the circular sealing block and located on the outside of the liquid pipes, and a binding mechanism for binding the circular sealing ring at both ends inside the U-shaped base.

[0006] The U-shaped base also has a sealing mechanism inside for sealing the two circular sealing blocks.

[0007] Preferably, the sealing mechanism includes a handwheel, which is provided inside the U-shaped base. One end of the handwheel is fixed with a first transverse threaded rod, and one end of the first transverse threaded rod is fixed with a second transverse threaded rod. The threads of the first and second transverse threaded rods are opposite in direction. Z-shaped sliding plates are threadedly connected to the outer sides of both the first and second transverse threaded rods. A circular sleeve is bolted to the top of the Z-shaped sliding plate, and an arc-shaped extrusion tube is fixed inside the circular sleeve.

[0008] Preferably, a partition is rotatably connected to the connection between the first transverse threaded rod and the second transverse threaded rod via a bearing, and the partition is fixed inside the U-shaped base.

[0009] Preferably, a rectangular limiting block is fixed inside the U-shaped base, and a rectangular sliding groove is provided inside the Z-shaped sliding plate. The Z-shaped sliding plate and the U-shaped base are slidably connected through the cooperation of the rectangular limiting block and the rectangular sliding groove.

[0010] Preferably, the circular sealing block has a circular limiting groove inside, and the circular sealing block and the arc-shaped extrusion tube are fitted together through the circular limiting groove.

[0011] Preferably, the restraint mechanism includes a rectangular mounting base, with rectangular mounting bases fixed at both ends inside the U-shaped base, and vertical hydraulic cylinders fixed at both ends inside the rectangular mounting bases. A rectangular lifting block is fixed at the output end of the vertical hydraulic cylinder, and a restraint strap is provided on the top of the rectangular lifting block. The restraint strap is sleeved on the outside of the circular sealing ring.

[0012] Preferably, the rectangular mounting base has a vertical sliding groove inside, and the rectangular lifting block is located inside the vertical sliding groove and is slidably connected to the rectangular mounting base through the vertical sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention employs two symmetrically arranged circular sealing blocks. An arc-shaped extrusion tube driven by a sealing mechanism applies uniform pressure to the circular sealing blocks, forming a double sealing barrier that effectively prevents gas leakage. Through the setting of the binding mechanism, the binding force can be automatically adjusted according to pipeline deformation or pressure fluctuations to maintain a constant sealing effect. This solves the problem that traditional rigid connections cannot adapt to thermal expansion and contraction. The modular circular sealing ring and circular sealing blocks can be replaced individually, avoiding the drawback of traditional integral structures that require complete replacement. Attached Figure Description

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

[0016] Figure 2 This is a schematic diagram of the structure of the circular sealing ring and the circular sealing block of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the arc-shaped extrusion tube and the circular sleeve of this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the first transverse threaded rod and the second transverse threaded rod of this utility model;

[0019] Figure 5 This is a schematic diagram of the internal structure of the rectangular mounting base of this utility model.

[0020] In the diagram: 1. U-shaped base; 2. Liquid pipeline; 3. Circular sealing ring; 4. Circular sealing block; 5. Restraint belt; 6. Rectangular mounting base; 7. Arc-shaped extrusion tube; 8. Circular sleeve plate; 9. Z-shaped sliding plate; 10. Handwheel; 11. First transverse threaded rod; 12. Second transverse threaded rod; 13. Rectangular lifting block; 14. Vertical hydraulic cylinder. Detailed Implementation

[0021] 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.

[0022] Reference Figure 1-5 A nitrogen-protected closed-loop modular leak-proof drying device includes a U-shaped base 1, with liquid pipes 2 at both ends of the top of the U-shaped base 1, a circular sealing block 4 on the outside of the liquid pipes 2, a circular sealing ring 3 at one end of the circular sealing block 4 and located on the outside of the liquid pipes 2, and a binding mechanism for binding the circular sealing ring 3 at both ends inside the U-shaped base 1.

[0023] The U-shaped base 1 also has a sealing mechanism inside for sealing the two circular sealing blocks 4.

[0024] The sealing mechanism includes a handwheel 10. The handwheel 10 is installed inside the U-shaped base 1. One end of the handwheel 10 is fixed with a first transverse threaded rod 11. One end of the first transverse threaded rod 11 is fixed with a second transverse threaded rod 12. The threads of the first transverse threaded rod 11 and the second transverse threaded rod 12 have opposite directions. The outer sides of the first transverse threaded rod 11 and the second transverse threaded rod 12 are threadedly connected with Z-shaped sliding plates 9. The top of the Z-shaped sliding plate 9 is bolted with a circular sleeve plate 8. An arc-shaped extrusion tube 7 is fixed inside the circular sleeve plate 8.

[0025] The connection between the first transverse threaded rod 11 and the second transverse threaded rod 12 is rotatably connected to a partition plate via a bearing. The partition plate is fixed inside the U-shaped base 1, thereby making the connection between the first transverse threaded rod 11 and the second transverse threaded rod 12 more stable, preventing the connection between the first transverse threaded rod 11 and the second transverse threaded rod 12 from bending, and thus enabling the first transverse threaded rod 11 and the second transverse threaded rod 12 to rotate synchronously better.

[0026] A rectangular limiting block is fixed inside the U-shaped base 1, and a rectangular sliding groove is opened inside the Z-shaped sliding plate 9. The Z-shaped sliding plate 9 and the U-shaped base 1 are slidably connected through the cooperation of the rectangular limiting block and the rectangular sliding groove. The cooperation of the rectangular limiting block and the rectangular sliding groove allows the Z-shaped sliding plate 9 to move laterally inside the U-shaped base 1.

[0027] The circular sealing block 4 has a circular limiting groove inside. The circular sealing block 4 and the arc-shaped extrusion tube 7 are fitted together through the circular limiting groove. The circular limiting groove makes the connection between the two circular sealing blocks 4 fit better, preventing air from leaking between the two circular sealing blocks 4.

[0028] Here, the rotation of the handwheel 10 causes the first transverse threaded rod 11 and the second transverse threaded rod 12 to rotate. The rotation of the first transverse threaded rod 11 and the second transverse threaded rod 12 causes the two Z-shaped sliding plates 9 to move laterally inside the U-shaped base 1. The movement of the two Z-shaped sliding plates 9 causes the circular sleeve plate 8 to move. The movement of the circular sleeve plate 8 causes the arc-shaped extrusion tube 7 to move, thereby allowing the arc-shaped extrusion tube 7 to enter the interior of the circular sealing block 4. The movement of the arc-shaped extrusion tube 7 improves the sealing of the two circular sealing blocks 4, preventing gas leakage.

[0029] The restraint mechanism includes a rectangular mounting base 6. Both ends of the U-shaped base 1 are fixed with rectangular mounting base 6. Both ends of the rectangular mounting base 6 are fixed with vertical hydraulic cylinders 14. The output end of the vertical hydraulic cylinder 14 is fixed with a rectangular lifting block 13. The top of the rectangular lifting block 13 is provided with a restraint strap 5, which is sleeved on the outside of the circular sealing ring 3.

[0030] The rectangular mounting base 6 has a vertical sliding groove inside. The rectangular lifting block 13 is located inside the vertical sliding groove and is slidably connected to the rectangular mounting base 6 through the vertical sliding groove. The vertical sliding groove allows the rectangular lifting block 13 to slide vertically inside the rectangular mounting base 6.

[0031] Here, the operation of the vertical hydraulic cylinder 14 enables the rectangular lifting block 13 to be vertically lifted and lowered inside the rectangular mounting base 6. The vertical lifting and lowering of the rectangular mounting base 6 allows the restraint belt 5 to move, thereby allowing the circular sealing ring 3 to contract so that the circular sealing ring 3 can fit with the liquid pipe 2, thereby preventing gaps from forming between the liquid pipe 2 and the circular sealing ring 3, which would lead to air leakage.

[0032] Two symmetrically arranged circular sealing blocks 4 are used. The arc-shaped extrusion tube 7 driven by the sealing mechanism applies uniform pressure to the circular sealing blocks 4 to form a double sealing barrier, which effectively prevents gas leakage. Through the setting of the binding mechanism, the binding force can be automatically adjusted according to pipeline deformation or pressure fluctuation to maintain a constant sealing effect. This solves the problem that traditional rigid connections cannot adapt to thermal expansion and contraction. The modular circular sealing ring 3 and circular sealing blocks 4 can be replaced individually, avoiding the drawback of traditional integral structures that require the replacement of all components.

[0033] Working principle: The rotation of handwheel 10 causes the first transverse threaded rod 11 and the second transverse threaded rod 12 to rotate. The rotation of the first transverse threaded rod 11 and the second transverse threaded rod 12 causes the two Z-shaped sliding plates 9 to move laterally inside the U-shaped base 1. The movement of the two Z-shaped sliding plates 9 causes the circular sleeve plate 8 to move. The movement of the circular sleeve plate 8 causes the arc-shaped extrusion tube 7 to move, thereby allowing the arc-shaped extrusion tube 7 to enter the interior of the circular sealing block 4. The movement of the arc-shaped extrusion tube 7 improves the sealing of the two circular sealing blocks 4, preventing gas leakage.

[0034] The operation of the vertical hydraulic cylinder 14 enables the rectangular lifting block 13 to move vertically within the rectangular mounting base 6. The vertical movement of the rectangular mounting base 6 allows the restraint belt 5 to move, thereby causing the circular sealing ring 3 to contract. This allows the circular sealing ring 3 to fit with the liquid pipe 2, preventing gaps between the liquid pipe 2 and the circular sealing ring 3 that could lead to air leakage.

[0035] 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 nitrogen-protected closed-loop modular leak-proof drying device, characterized in that: Includes a U-shaped base (1), with liquid pipes (2) provided at both ends of the top of the U-shaped base (1), a circular sealing block (4) provided on the outside of the liquid pipes (2), a circular sealing ring (3) provided at one end of the circular sealing block (4) and located on the outside of the liquid pipes (2), and a binding mechanism for binding the circular sealing ring (3) provided at both ends inside the U-shaped base (1); The U-shaped base (1) is also equipped with a sealing mechanism for sealing the two circular sealing blocks (4).

2. The nitrogen-protected closed-loop modular leak-proof drying device according to claim 1, characterized in that: The sealing mechanism includes a handwheel (10). The U-shaped base (1) is equipped with a handwheel (10). One end of the handwheel (10) is fixed with a first transverse threaded rod (11). One end of the first transverse threaded rod (11) is fixed with a second transverse threaded rod (12). The threads of the first transverse threaded rod (11) and the second transverse threaded rod (12) are opposite. The outer sides of the first transverse threaded rod (11) and the second transverse threaded rod (12) are threaded with Z-shaped sliding plates (9). The top of the Z-shaped sliding plate (9) is bolted with a circular sleeve plate (8). The inside of the circular sleeve plate (8) is fixed with an arc-shaped extrusion tube (7).

3. The nitrogen-protected closed-loop modular leak-proof drying device according to claim 2, characterized in that: A partition is rotatably connected to the connection between the first transverse threaded rod (11) and the second transverse threaded rod (12) via a bearing, and the partition is fixed inside the U-shaped base (1).

4. The nitrogen-protected closed-loop modular leak-proof drying device according to claim 2, characterized in that: The U-shaped base (1) is also fixed with a rectangular limiting block inside, and the Z-shaped sliding plate (9) is provided with a rectangular sliding groove inside. The Z-shaped sliding plate (9) and the U-shaped base (1) are slidably connected by the cooperation of the rectangular limiting block and the rectangular sliding groove.

5. A nitrogen-protected closed-loop modular leak-proof drying device according to claim 2, characterized in that: The circular sealing block (4) has a circular limiting groove inside, and the circular sealing block (4) and the arc-shaped extrusion tube (7) are fitted together through the circular limiting groove.

6. The nitrogen-protected closed-loop modular leak-proof drying device according to claim 1, characterized in that: The restraint mechanism includes a rectangular mounting base (6), and both ends of the U-shaped base (1) are fixed with rectangular mounting bases (6). Both ends of the rectangular mounting base (6) are fixed with vertical hydraulic cylinders (14). A rectangular lifting block (13) is fixed at the output end of the vertical hydraulic cylinder (14). A restraint strap (5) is provided on the top of the rectangular lifting block (13). The restraint strap (5) is sleeved on the outside of the circular sealing ring (3).

7. A nitrogen-protected closed-loop modular leak-proof drying device according to claim 6, characterized in that: The rectangular mounting base (6) has a vertical sliding groove inside, and the rectangular lifting block (13) is located inside the vertical sliding groove and is slidably connected to the rectangular mounting base (6) through the vertical sliding groove.

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