Mechanical sealing device based on chemical industry overhaul

Abstract

The utility model discloses a kind of mechanical sealing devices based on chemical maintenance, it is related to sealing device technical field.The technical scheme is as follows: including tank body, tank body bottom is provided with inlet and outlet pipe, tank body top is provided with tank cover, tank body top is rotatably connected with two semicircular plates, two semicircular plates are fixed together detachably after surrounding tank cover from side edge;Tank cover top edge is provided with a circle of recess one, lubricating ring is provided in tank cover upper portion corresponding recess one, lubricating ring bottom is provided with a circle of recess two, several rotating balls are arranged in recess two, and lubricating ring is provided with oil inlet, plug is arranged in oil inlet.The utility model aims at improving the leakage of the mode of using filler in prior art when sealing is larger, need regular adjustment and replacement filler and cannot completely seal contact surface, thereby reducing the problem of maintenance sealing.

Description

Technical Field

[0001] This utility model relates to the field of sealing device technology, specifically to a mechanical seal device for chemical maintenance. Background Technology

[0002] Chemical production processes involve high temperatures, high pressures, strong corrosion, and flammable and explosive conditions, placing extremely high demands on the performance and reliability of mechanical seals. As a key component preventing chemical media leakage and ensuring normal equipment operation, the performance of mechanical seals directly affects the safety, stability, and environmental friendliness of production. Failure of a mechanical seal can lead to media leakage, causing environmental pollution, resource waste, and even serious safety accidents such as fires and explosions, resulting in huge economic losses and casualties. In actual chemical production, when equipment containing chemical media needs maintenance, this media must be diverted to a sealing device to prevent leakage and accidents during maintenance. Current technology involves filling the gap between the shaft and the sealing cavity with packing material, applying pressure to deform the packing and tighten it around the shaft, thus achieving a seal. However, this sealing method has a relatively large leakage rate, requires regular adjustment and replacement of the packing material, and cannot completely seal the contact surface, thus reducing the sealing performance during maintenance. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a mechanical seal device for chemical maintenance. The aim is to improve the problem that the existing technology uses packing to seal, which results in large leakage, requires regular adjustment and replacement of packing, and cannot completely seal the contact surface, thus reducing the maintenance sealing performance.

[0004] The technical solution of this utility model is as follows:

[0005] Based on the mechanical seal device for chemical maintenance, it includes a tank body, an inlet and outlet pipe at the bottom of the tank body, a tank cover at the top of the tank body, and two semi-circular plates rotatably connected to the top of the tank body. The two semi-circular plates surround the tank cover from the side and are detachably fixed together. A groove I is provided at the top edge of the tank cover, and a lubrication ring is provided at a corresponding groove on the top of the tank cover. A groove II is provided at the bottom of the lubrication ring, and several rotating balls are provided in the groove II. The lubrication ring is provided with an oil inlet, and a plug is provided at the oil inlet.

[0006] Preferably, the connecting ends of the two semicircular plates are respectively provided with fixing plates, and the two fixing plates are connected by bolts.

[0007] Preferably, a gasket is provided between the fixing plate and the bolt.

[0008] Preferably, the bottom of the tank is provided with a support base, the support base includes an annular support plate and a ring of protective plates on the support plate, and the bottom of the tank is placed on the support plate; the support base is provided with a plurality of clamping blocks, and the clamping blocks are provided with support legs.

[0009] Preferably, a damping ring is provided between the bottom of the tank and the pallet.

[0010] Preferably, the bottom of the support leg is provided with an anti-slip block.

[0011] Preferably, a conical cylinder is connected between the tank body and the inlet / outlet pipe.

[0012] Preferably, the can lid is provided with a handle, and the handle is provided with an anti-slip sleeve.

[0013] Compared with the prior art, this utility model has the following advantages:

[0014] This invention's device provides a preliminary seal to the tank lid using a semi-circular plate on the tank body, and further seals the gap between the lid and the semi-circular plate using sealing oil. This not only facilitates operation but also solves the problems of existing packing seals, such as large leakage, the need for regular packing adjustments and replacements, and the inability to completely seal the contact surfaces, leading to poor sealing during maintenance. This invention ensures the sealing of chemical media during equipment maintenance, preventing leaks and accidents. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the mechanical seal device for chemical maintenance according to this utility model.

[0016] Figure 2 This is a schematic diagram of the top structure of the mechanical seal device for chemical maintenance based on this utility model.

[0017] Figure 3 This is a schematic diagram of the structure of the can lid and lubrication ring of this utility model.

[0018] Figure 4 This is a structural schematic diagram of the support base of this utility model.

[0019] In the diagram, 1. Tank body; 201. Inlet / outlet pipe; 202. Conical cylinder; 3. Tank cover; 301. Groove 1; 4. Semicircular plate; 5. Lubricating ring; 6. Rotating ball; 701. Oil inlet; 702. Plug; 8. Fixing plate; 9. Bolt; 10. Gasket; 11. Protective plate; 12. Clamping block; 13. Support leg; 14. Vibration damping ring; 15. Anti-slip block; 16. Handle; 17. Anti-slip sleeve. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model.

[0021] Example 1

[0022] like Figure 1 , 4 As shown, this embodiment provides a mechanical seal device for chemical maintenance, including a tank 1, a conical cylinder 202 at the bottom of the tank 1, and an inlet / outlet pipe 201 connected to the conical cylinder 202. The tank 1 is connected to the maintenance equipment through the inlet / outlet pipe 201, and the medium in the maintenance equipment is discharged into the tank 1, thereby avoiding leakage of the medium during the maintenance process.

[0023] like Figure 2 As shown, a lid 3 is provided on the top of the tank body 1, and a handle 16 is provided on the lid 3. An anti-slip sleeve 17 is provided on the handle 16, making it easy to move the lid 3 and operate it conveniently. Two semi-circular plates 4 are rotatably connected to the top of the tank body 1 by hinges. The other end of the two semi-circular plates 4 is provided with a fixing plate 8, and the two fixing plates 8 are connected by bolts 9. A gasket 10 is provided between the semi-circular plates 4 and the bolts 9, so that the two semi-circular plates 4 can be detachably fixed together after surrounding the lid 3 from the side, fixing the lid 3 to the top of the tank body 1 and achieving a preliminary seal of the tank body 1.

[0024] like Figure 3 As shown, a groove 1 is provided at the top edge of the can lid 3. A lubrication ring 5 is provided above the can lid 3 corresponding to one of the grooves. A second groove 2 is provided at the bottom of the lubrication ring 5. Several rotating balls 6 are provided in the second groove. The lubrication ring 5 is provided with an oil inlet 701, and a plug 702 is provided at the oil inlet 701. Open the plug 702, pour sealing oil into the second groove of the lubrication ring 5 through the oil inlet 701, and then plug the plug 702 back in. At this time, rotate the lubrication ring 5. The lubrication ring 5 will drive the rotating balls 6 to rotate. The rotating balls 6 will rotate in the first groove. During the rotation of the rotating balls 6, the sealing oil inside the lubrication ring 5 will be carried out. The sealing oil will flow along the inside of the first groove, thereby filling and sealing the gap between the can lid 3 and the semi-circular plate 4. This achieves a complete seal for the entire device, preventing the escape of internal gas during equipment maintenance, and thus improving the sealing performance of equipment maintenance. After the equipment is repaired, disconnect the equipment from the inlet / outlet pipe 201, and then connect the inlet / outlet pipe 201 to the waste liquid treatment equipment to treat the medium in the tank 1 in a unified manner.

[0025] Example 2

[0026] Based on Example 1, such as Figure 1 , 4As shown, a support base is provided at the bottom of the tank body 1. The support base includes an annular support plate and a protective plate 11 on the support plate. The bottom of the tank body 1 rests on the support plate, and a damping ring 14 is provided between the bottom of the tank body 1 and the support plate. Four clamping blocks 12 are provided on the support base, and support legs 13 are provided on the clamping blocks 12. Anti-slip blocks 15 are provided at the bottom of the support legs 13. The support base can support the tank body 1 and also facilitates the connection of the inlet / outlet pipe 201 to maintenance equipment and waste liquid treatment equipment.

Claims

1. A mechanical seal device for chemical maintenance, characterized in that, The tank includes a tank body (1), a feed pipe (201) at the bottom of the tank body (1), a tank cover (3) at the top of the tank body (1), two semi-circular plates (4) rotatably connected to the top of the tank body (1), the two semi-circular plates (4) surround the tank cover (3) from the side and are detachably fixed together; a groove (301) is provided at the top edge of the tank cover (3), a lubrication ring (5) is provided at the top of the tank cover (3) corresponding to the groove (301), a groove (2) is provided at the bottom of the lubrication ring (5), a number of rotating balls (6) are provided in the groove (2), and an oil inlet (701) is provided in the lubrication ring (5), and a plug (702) is provided at the oil inlet (701).

2. The mechanical seal device for chemical maintenance as described in claim 1, characterized in that, The two semicircular plates (4) are respectively provided with fixing plates (8) at their connecting ends, and the two fixing plates (8) are connected by bolts (9).

3. The mechanical seal device for chemical maintenance as described in claim 2, characterized in that, A gasket (10) is provided between the fixing plate (8) and the bolt (9).

4. The mechanical seal device for chemical maintenance as described in claim 1, characterized in that, The bottom of the tank (1) is provided with a support base, which includes an annular support plate and a ring of protective plates (11) on the support plate. The bottom of the tank (1) is placed on the support plate. Several clamping blocks (12) are provided on the support base, and support legs (13) are provided on the clamping blocks (12).

5. The mechanical seal device for chemical maintenance as described in claim 4, characterized in that, A damping ring (14) is provided between the bottom of the tank (1) and the pallet.

6. The mechanical seal device for chemical maintenance as described in claim 4, characterized in that, The bottom of the support leg (13) is provided with an anti-slip block (15).

7. The mechanical seal device for chemical maintenance as described in claim 1, characterized in that, A conical cylinder (202) is connected between the tank body (1) and the inlet / outlet pipe (201).

8. The mechanical seal device for chemical maintenance as described in claim 1, characterized in that, The can lid (3) is provided with a handle (16), and the handle (16) is provided with an anti-slip sleeve (17).

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