Special double-end-face mechanical sealing device for chlorination reaction kettle

Abstract

The utility model relates to the technical field of mechanical sealing, in particular to a double-end-face mechanical sealing device special for a chlorination reaction kettle, which comprises a positioning flange ring, a first flange is connected above the positioning flange ring through a long bolt, a connecting sleeve is integrally arranged on the inner wall of the first flange, a sealing sleeve is connected inside the connecting sleeve, and a sealing ring is arranged on the sealing sleeve. A sealing ring is extruded between the connecting sleeve and the positioning flange ring; the mounting base is arranged at the bottom of the positioning flange ring, the mounting base and the positioning flange ring are in rotary clamping fit, and the mounting base is arranged outside the reaction kettle flange in a sleeving manner. Through the arrangement of the mounting base, the mounting base and the flange part of the reaction kettle can be mutually welded and positioned, and then through the rotary clamping and positioning of the mounting base and the bottom flange ring, the overall stable mounting of the mechanical seal is realized, and the mechanical seal is effectively prevented from being loosened due to the vibration of a machine body; therefore, the sealing effect in the later use period is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mechanical seal technology, specifically a double-end mechanical seal device for chlorination reactors. Background Technology

[0002] A mechanical seal for a reactor is a device used to solve the sealing problem between a rotating shaft and the reactor body. It consists of at least a pair of end faces perpendicular to the rotating shaft. Under the action of fluid pressure and the elastic force of the compensation mechanism, as well as the cooperation of auxiliary seals, they remain in contact and slide relative to each other, thereby preventing fluid leakage.

[0003] For example, a mechanical seal for a reactor, disclosed in CN221880220U, belongs to the field of sealing components. It consists of a connecting flange, a first sealing component, a pressing component, a rotating component sealing sleeve, and a second sealing component. In this solution, the sealing ring is movably inserted into the groove B and movably sleeved on the reactor's stirring shaft, achieving a seal on the reactor and preventing leakage at the stirring shaft. A protrusion movably inserts into the positioning hole to prevent the sealing ring from rotating, ensuring it remains firmly on the stirring shaft for sealing. A pressing ring movably inserts into the groove B to press the sealing ring and prevent movement. This solution addresses the problem in existing reactor mechanical seals where rubber spacers easily generate high temperatures on the moving mold and rotating shaft, affecting sealing performance. The installation method still uses bolt positioning. This method is subject to vibration from the operation of the reactor body, which can cause the bolts to loosen. Over time, this can lead to loosening of the positioning and affect the sealing effect. Utility Model Content

[0004] The purpose of this invention is to provide a special double-end mechanical seal device for chlorination reactors, in order to solve the problem mentioned in the background art that the traditional bolt installation method is subject to vibration of the reactor body during operation, which causes the bolts to loosen and, over time, leads to loosening of their positioning, thereby affecting the sealing effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a double-end mechanical seal device for a chlorination reactor, comprising:

[0006] A positioning flange ring is provided, and a first flange is connected to the top of the positioning flange ring by a long bolt. A connecting sleeve is integrally provided on the inner wall of the first flange. A sealing sleeve is connected inside the connecting sleeve, and a sealing ring is squeezed between the connecting sleeve and the positioning flange ring.

[0007] The mounting base is located at the bottom of the positioning flange ring, and the mounting base and the positioning flange ring are rotated and engaged. The mounting base is sleeved on the outside of the reactor flange.

[0008] A reinforcing bolt is provided, which passes through the positioning flange ring and connects to the mounting base.

[0009] Preferably, the bottom of the positioning flange ring is provided with a limiting groove, and a limiting plate is provided at the bottom corner of the limiting groove. The inner wall of the long side of the limiting groove is provided with a first limiting surface and a second limiting surface, the inside of the limiting groove is provided with a first positioning hole, and the inside of the positioning flange ring is provided with a second positioning hole.

[0010] Preferably, the upper surface of the mounting base is provided with a positioning plate, and the long outer wall of the positioning plate is provided with a first abutting surface and a second abutting surface respectively, and the mounting base is provided with a threaded hole.

[0011] Preferably, the reinforcing bolt passes through the second positioning hole to the inside of the threaded hole, and the threaded hole and the reinforcing bolt are threadedly connected. The mounting base is provided with an annular cylinder below the threaded hole, and the annular cylinder is inserted into the positioning hole of the reactor flange.

[0012] Preferably, the arc angle of the limiting groove is twice the arc angle of the positioning plate, and the first positioning hole is stepped, and the stepped bottom of the long bolt is adapted to the first positioning hole.

[0013] Preferably, the lower part of the positioning plate near the outer diameter is stepped, and the stepped part engages and abuts with the limiting plate. The positioning plate has an arc-shaped groove on the side near the second abutment surface, and the diameter of the arc-shaped groove is larger than the diameter of the first positioning hole.

[0014] Preferably, when the first limiting surface and the first abutting surface are in contact with each other, the second positioning hole and the threaded hole are coaxially distributed, and when the second limiting surface and the second abutting surface are in contact with each other, the positioning flange ring and the mounting base can be disassembled and installed vertically.

[0015] Compared with the prior art, the beneficial effects of this utility model are: by setting the mounting base, the mounting base and the flange of the reactor are welded and positioned together, and then the mounting base and the bottom flange ring are rotated and engaged to achieve stable installation of the mechanical seal as a whole, effectively preventing it from loosening due to machine vibration, thereby ensuring its sealing effect in the later stage of use. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present utility model;

[0017] Figure 2This is a schematic diagram of the axial cross-sectional structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the positioning flange ring of this utility model;

[0019] Figure 4 This is a schematic diagram of the overall structure of the mounting base of this utility model;

[0020] Figure 5 This is a cross-sectional structural diagram of the mounting base and positioning flange of this utility model in their engagement and positioning state.

[0021] In the diagram: 1. Positioning flange ring; 12. Limiting groove; 13. Limiting plate; 14. First limiting surface; 15. Second limiting surface; 16. First positioning hole; 17. Second positioning hole; 2. Long bolt; 3. First flange; 4. Connecting sleeve; 5. Sealing ring; 6. Sealing sleeve; 7. Mounting base; 71. Positioning plate; 72. First abutment surface; 73. Second abutment surface; 74. Threaded hole; 8. Reinforcing bolt. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-5 One embodiment of this utility model is a double-end mechanical seal device for a chlorination reactor, comprising:

[0024] A positioning flange ring 1 is provided. A first flange 3 is connected to the top of the positioning flange ring 1 by a long bolt 2. A connecting sleeve 4 is integrally provided on the inner wall of the first flange 3. A sealing sleeve 6 is connected inside the connecting sleeve 4. A sealing ring 5 is squeezed between the connecting sleeve 4 and the positioning flange ring 1.

[0025] Mounting base 7 is located at the bottom of positioning flange ring 1, and mounting base 7 and positioning flange ring 1 are rotated and engaged. Mounting base 7 is sleeved on the outside of reactor flange. Reinforcing bolt 8 passes through positioning flange ring 1 and mounting base 7 to connect them. After positioning by rotating flange ring 1 and mounting base 7, the connection is tightened by reinforcing bolt 8. This connection and positioning method effectively avoids loosening of the connection due to reactor body vibration, thereby ensuring the stability and firmness of the mechanical seal installation and ensuring its sealing effect in later use.

[0026] Furthermore, a limiting groove 12 is provided at the bottom of the positioning flange ring 1, and a limiting plate 13 is provided at the bottom corner of the limiting groove 12. The inner wall of the long side of the limiting groove 12 is provided with a first limiting surface 14 and a second limiting surface 15 respectively. A first positioning hole 16 is provided inside the limiting groove 12, and a second positioning hole 17 is provided inside the positioning flange ring 1. A positioning plate 71 is provided on the upper surface of the mounting base 7, and a first abutting surface 72 and a second abutting surface 73 are provided on the outer wall of the long side of the positioning plate 71 respectively. A threaded hole 74 is provided on the mounting base 7. During installation, the positioning plate 71 is engaged inside the limiting groove 12, and then rotated to make the positioning plate 71 and the limiting plate 13 engage and limit each other. Finally, by tightening the reinforcing bolts 8, the positioning flange ring 1 and the mounting base 7 can be stably installed. The mutual engagement and abutment of the limiting plate 13 and the positioning plate 71 prevents them from loosening up and down.

[0027] Furthermore, the reinforcing bolt 8 passes through the second positioning hole 17 to the inside of the threaded hole 74, and the threaded hole 74 is threadedly connected to the reinforcing bolt 8. A circular cylinder is provided below the threaded hole 74 on the mounting base 7, and the circular cylinder is inserted into the positioning hole of the reactor flange. The outer wall of the mounting base 7 is fixed to the reactor flange and the body by welding to ensure the stability and firmness of the mounting base 7.

[0028] Furthermore, the arc angle of the limiting groove 12 is twice that of the arc angle of the positioning plate 71, and the first positioning hole 16 is stepped, and the bottom of the long bolt 2 is stepped and matches the first positioning hole 16, so as to avoid the long bolt 2 affecting the rotation of the positioning plate 71 after installation.

[0029] Furthermore, the lower end of the positioning plate 71 near the outer diameter is stepped, and the stepped shape engages and abuts with the limiting plate 13. The positioning plate 71 has an arc-shaped groove on the side near the second abutment surface 73, and the diameter of the arc-shaped groove is larger than the diameter of the first positioning hole 16, which facilitates the engagement and positioning of the long bolt 2. After the upper parts of the positioning flange ring 1 are first installed and positioned, the positioning flange ring 1 and the mounting base 7 are finally engaged and positioned. When the first limiting surface 14 and the first abutment surface 72 are in contact with each other, the second positioning hole 17 and the threaded hole 74 are coaxially distributed. When the second limiting surface 15 and the second abutment surface 73 are in contact with each other, the positioning flange ring 1 and the mounting base 7 can be disassembled and reassembled.

[0030] Working principle: The positioning flange ring 1, connecting sleeve 4, sealing ring 5 and sealing sleeve 6 used in this application are all products that can be purchased directly from the market. Their principles and connection methods are existing technologies known to those skilled in the art, so they will not be described in detail here. When using this utility model, firstly, the components above the positioning flange ring 1 are assembled, and then the positioning plate 71 is correspondingly engaged with the inside of the limiting groove 12 and rotated so that the threaded hole 74 and the second positioning hole 17 are coaxially distributed. Finally, the second positioning hole 17 is threadedly connected to the threaded hole 74 by the reinforcing bolt 8, so that the positioning flange ring 1 and the mounting base 7 can be stably and sealedly installed.

[0031] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A double-end mechanical seal device for a chlorination reactor, characterized in that, include: A positioning flange ring (1) is provided. A first flange (3) is connected to the top of the positioning flange ring (1) by a long bolt (2). A connecting sleeve (4) is integrally provided on the inner wall of the first flange (3). A sealing sleeve (6) is connected inside the connecting sleeve (4). A sealing ring (5) is squeezed between the connecting sleeve (4) and the positioning flange ring (1). Mounting base (7) is located at the bottom of positioning flange ring (1) and the mounting base (7) and positioning flange ring (1) are rotated and engaged. The mounting base (7) is sleeved on the outside of the reactor flange. A reinforcing bolt (8) is inserted through the positioning flange ring (1) and connected to the mounting base (7).

2. The double-end mechanical seal device for a chlorination reactor according to claim 1, characterized in that: The bottom of the positioning flange ring (1) has a limiting groove (12), and the bottom corner of the limiting groove (12) is provided with a limiting plate (13). The inner wall of the long side of the limiting groove (12) is provided with a first limiting surface (14) and a second limiting surface (15). The inside of the limiting groove (12) is provided with a first positioning hole (16), and the inside of the positioning flange ring (1) is provided with a second positioning hole (17).

3. The double-end mechanical seal device for a chlorination reactor according to claim 2, characterized in that: The upper surface of the mounting base (7) is provided with a positioning plate (71), and the long side outer wall of the positioning plate (71) is provided with a first abutting surface (72) and a second abutting surface (73), and the mounting base (7) is provided with a threaded hole (74).

4. The double-end mechanical seal device for a chlorination reactor according to claim 3, characterized in that: The reinforcing bolt (8) passes through the second positioning hole (17) to the inside of the threaded hole (74), and the threaded hole (74) and the reinforcing bolt (8) are threadedly connected. The mounting base (7) is provided with a circular cylinder below the threaded hole (74), and the circular cylinder is inserted into the positioning hole of the reactor flange.

5. The double-end mechanical seal device for a chlorination reactor according to claim 3, characterized in that: The arc angle of the limiting groove (12) is twice that of the arc angle of the positioning plate (71), and the first positioning hole (16) is stepped, and the bottom of the long bolt (2) is stepped and matches the first positioning hole (16).

6. The double-end mechanical seal device for a chlorination reactor according to claim 3, characterized in that: The positioning plate (71) is stepped at the lower end near the outer diameter, and the stepped shape engages and abuts against the limiting plate (13). The positioning plate (71) has an arc-shaped groove on the side near the second abutting surface (73), and the diameter of the arc-shaped groove is larger than the diameter of the first positioning hole (16).

7. The double-end mechanical seal device for a chlorination reactor according to claim 3, characterized in that: When the first limiting surface (14) and the first abutting surface (72) are in contact with each other, the second positioning hole (17) and the threaded hole (74) are coaxially distributed. When the second limiting surface (15) and the second abutting surface (73) are in contact with each other, the positioning flange ring (1) and the mounting base (7) can be disassembled and installed from top to bottom.

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