CN220802994U

CN220802994U - Sealing driving device

Info

Publication number: CN220802994U
Application number: CN202322422913.XU
Authority: CN
Inventors: 余国勇; 周茂林; 沈连芳; 曾琼
Original assignee: Sichuan Huanan Inorganic Salts Co ltd
Current assignee: Sichuan Huanan Inorganic Salts Co ltd
Priority date: 2023-09-06
Filing date: 2023-09-06
Publication date: 2024-04-19
Anticipated expiration: 2033-09-06

Abstract

The utility model relates to a sealing mechanism and provides a sealing driving device which comprises a reactor, a driving rod penetrating through the reactor, a slave rotor sleeved at one end of the driving rod outside the reactor, a sealing cover sleeved at the outer wall of the reactor, a master rotor sleeved at the outer wall of the sealing cover and a driving motor connected with the master rotor, wherein the slave rotor is arranged at the outer end of the reactor; the driven element is arranged in the sealing cover; the driving part is provided with a first magnet close to the inner side wall of the sealing cover, and the driven part is provided with a second magnet close to the outer side wall of the sealing cover. The seal driving device of the utility model can effectively seal the inside of a reactor.

Description

Sealing driving device

Technical Field

The utility model relates to the technical field of sealing mechanisms, in particular to a sealing driving device.

Background

In chemical production, many electric driving force mechanisms such as stirring devices, conveying devices, cooling devices and the like are not used. Because the materials are in a liquid state in the production process in most cases, the reliability of the sealing structure of the device is limited, and the driving assembly and the materials are generally separated, so that the direct contact of the driving assembly and the materials is avoided. If the power mechanism (motor, etc.) in the stirring device is arranged above the reaction device (such as a reaction kettle), the stirring rod, etc. are only extended into the materials for stirring, but for some horizontal or inverted reaction devices, the driving motor and the reaction kettle are positioned at the same height, even the motor is positioned below the reaction kettle, and at the moment, a certain test is performed on the sealing device.

If in the production process of p-nitrobenzoic acid, the reaction environment of high temperature, high acid and high pressure is involved, and at this moment, a huge test is produced on the sealing effect between the reaction device and the motive mechanism, the traditional sealing structure is difficult to bear the environment of high temperature, high pressure and high acid, so that high-pressure gas and high acid solution in the reaction device permeate into the structures such as a driving motor, a gearbox and the like after passing through a sealing element, and damage is caused to the structures, and therefore, the production equipment can be effectively protected by designing a mechanism capable of effectively sealing.

Disclosure of utility model

The utility model aims to provide a sealing driving device which can effectively seal the inside of a reactor.

The embodiment of the utility model is realized by the following technical scheme: the sealing driving device comprises a reactor, a driving rod penetrating through the reactor, a slave rotor sleeved on one end of the driving rod outside the reactor, a sealing cover sleeved on the outer wall of the reactor, a master rotor sleeved on the outer wall of the sealing cover, and a driving motor connected with the master rotor; the driven element is arranged in the sealing cover; the driving part is close to the inner side wall of the sealing cover and is provided with a first magnet, and the driven part is close to the outer side wall of the sealing cover and is provided with a second magnet.

Further, a first sealing block is sleeved at one end of the driving rod, which is arranged in the sealing cover, and a pressing plate is arranged at one side of the first sealing block, which is far away from the reactor, and is fixedly connected with the reactor; a first sealing ring is arranged at the joint of the first sealing block and the reactor; the first sealing block is in sealing sliding connection with the driving rod.

Further, a second sealing block is arranged on one side, far away from the reactor, of the first sealing block, a pressing plate is arranged on one side, far away from the first sealing block, of the second sealing block, and a sleeve is arranged between the second sealing block and the pressing plate; the pressing plate is fixedly connected with the driving rod, and the second sealing block, the sleeve and the pressing plate are all sleeved on the outer wall of the driving rod.

Further, a second sealing ring is arranged at the junction of the sealing block, the sleeve and the driving rod.

Further, a spring is sleeved on the outer wall of the sleeve; one end of the spring is connected with the second sealing block, and the other end of the spring is connected with the pressing plate.

Further, the upper side wall of the sealing cover is connected with a pressurizing device; the pressurizing device comprises a pressurizing pipe connected with the sealing cover and an air supply device connected with the pressurizing pipe.

Further, a liquid discharge pipe is arranged on the lower side of the sealing cover, and a valve is arranged on the liquid discharge pipe.

Further, a pressure sensor is arranged in the liquid discharge pipe, and the valve is an electromagnetic valve; the pressure sensor is connected with the electromagnetic valve.

The technical scheme of the embodiment of the utility model has at least the following advantages and beneficial effects: according to the sealed driving device, the driving rod in the reactor is sealed by using the sealed cover, the sealed cover can also separate the secondary mover at the end part of the driving rod from the primary mover, so that no substantial contact is generated between the secondary mover and the primary mover, the primary mover drives the primary mover to rotate through the cooperation of the first magnet and the second magnet, the secondary mover drives the driving rod to rotate, and the stirring blades are arranged on the driving rod to stir and mix materials in the reactor. By reducing the connecting end surfaces, the overflow of gas and liquid in the reactor can be effectively reduced, the risk of gas and liquid entering the driving motor can be reduced, and other mechanical structures can be effectively protected.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of an inside of a seal driving device according to an embodiment of the present utility model;

FIG. 2 is a cross-sectional view taken along the direction A-A in FIG. 1;

Fig. 3 is a schematic structural diagram of a first sealing block and a second sealing block according to an embodiment of the present utility model.

Icon: 10-reactor, 11-actuating rod, 21-sealed cowling, 22-pressurization pipe, 23-fluid-discharge tube, 24-main active cell, 25-first magnet, 26-secondary active cell, 27-second magnet, 28-driving motor, 31-first sealing block, 32-first sealing ring, 33-second sealing block, 34-clamp plate, 35-sleeve, 36-spring, 37-second sealing ring.

Detailed Description

Examples

As further described below with reference to the specific embodiments, as shown in fig. 1-3, the sealing driving device in this embodiment includes a reactor 10, a driving rod 11 penetrating through the reactor 10, a driven member 26 sleeved on the driving rod 11 and disposed at one end of the reactor 10, a sealing cover 21 sleeved on the outer wall of the reactor 10, a driving member 24 sleeved on the outer wall of the sealing cover 21, and a driving motor 28 connected with the driving member 24; the secondary mover 26 is arranged in the sealing cover 21; the inner side wall of the main rotor 24, which is close to the sealing cover 21, is provided with a first magnet 25, and the outer side wall of the driven rotor 26, which is close to the sealing cover 21, is provided with a second magnet 27. Specifically, the driving rod 11 in the reactor 10 is sealed by using the sealing cover 21, and the driven member 26 at the end of the driving rod 11 and the driving member 24 can be separated by the sealing cover 21, so that no substantial contact is generated between the driven member 26 and the driving member 24, wherein the external driving motor 28 drives the driving member 24 to rotate, the driving member 24 drives the driven member 26 to rotate through the cooperation of the first magnet 25 and the second magnet 27, the driven member 26 drives the driving rod 11 to rotate, and the stirring blades are arranged on the driving rod 11 to stir and mix materials in the reactor 10. By reducing the number of connection end surfaces in this way, it is possible to effectively reduce the risk of gas and liquid entering the drive motor 28 as well as the overflow of gas and liquid inside the reactor 10, and to effectively protect other mechanical structures.

One end of the driving rod 11 arranged in the sealing cover 21 in the embodiment is sleeved with a first sealing block 31, one side of the first sealing block 31 far away from the reactor 10 is provided with a pressing plate 34, and the pressing plate 34 is fixedly connected with the reactor 10; a first sealing ring 32 is arranged at the joint of the first sealing block 31 and the reactor 10; the first sealing block 31 is in sealing sliding connection with the driving rod 11. A second sealing block 33 is arranged on one side of the first sealing block 31 far away from the reactor 10, a pressing plate 34 is arranged on one side of the second sealing block 33 far away from the first sealing block 31, and a sleeve is arranged between the second sealing block 33 and the pressing plate 34; the pressing plate 34 is fixedly connected with the driving rod 11, and the second sealing block 33, the sleeve and the pressing plate 34 are all sleeved on the outer wall of the driving rod 11. The junction of the sealing block, sleeve and drive rod 11 is provided with a second sealing ring 37. Specifically, the gap at the connection position of the driving rod 11 and the reactor 10 can be effectively sealed by matching the first sealing block 31 and the second sealing block 33, wherein the main sealing function is that of the first sealing ring 32, the joint position of the first sealing block 31 and the second sealing block 33 and the second sealing ring 37, the positions are points connected with the outside, and the pressing plate 34 and the sleeve are used for adjusting the position of the second sealing block 33, so that the second sealing block 33 can be tightly abutted with the first sealing block 31 to form a sealing function.

The outer wall of the sleeve in the embodiment is sleeved with a spring 36; one end of the spring 36 is connected to the second seal block 33, and the other end is connected to the pressure plate 34. In particular, the function of the spring 36 is to create a pressing action on the second sealing block 33 so that it can be stably pressed against the first sealing block 31.

The upper side wall of the sealing cover 21 in the embodiment is connected with a pressurizing device; the pressurizing means includes a pressurizing pipe 22 connected to the sealing cap 21, and an air supply means connected to the pressurizing pipe 22. Specifically, the pressurizing device is used for forming positive pressure in the high-pressure reactor 10 in the sealing cover 21, and the gas or liquid in the reactor 10 is prevented from entering the sealing cover 21 as much as possible through the cooperation of the positive pressure and other sealing structures.

The drain pipe 23 is arranged at the lower side of the sealing cover 21 in the embodiment, and the drain pipe 23 is provided with a valve. A pressure sensor is arranged in the liquid discharge pipe 23, and a valve is an electromagnetic valve; the pressure sensor is connected with the electromagnetic valve. Specifically, the liquid in the sealed cover 21 is drained as soon as possible by the liquid drain pipe 23, and when the liquid enters the sealed cover 21, the liquid directly flows into the liquid drain pipe 23 due to the low end of the liquid drain pipe 23, and when a certain amount of liquid enters the trigger pressure sensor, the electromagnetic valve is opened, and the liquid can be drained rapidly under the action of positive pressure due to the positive pressure in the sealed cover 21, and then the valve is closed. In this way, even if some liquid enters the seal cover 21, it can be discharged as soon as possible, and the normal operation of other components is prevented from being affected.

In summary, the sealing driving device of the present embodiment uses the sealing cover 21 to seal the driving rod 11 in the reactor 10, and the sealing cover 21 can also separate the driven member 26 at the end of the driving rod 11 from the driving member 24, so that the two members do not generate substantial contact, wherein the external driving motor 28 drives the main member 24 to rotate, the main member 24 drives the auxiliary member 26 to rotate through the cooperation of the first magnet 25 and the second magnet 27, and the auxiliary member 26 drives the driving rod 11 to rotate, so as to stir and mix the materials inside the reactor 10 by providing stirring blades on the driving rod 11. By reducing the number of connection end surfaces in this way, it is possible to effectively reduce the risk of gas and liquid entering the drive motor 28 as well as the overflow of gas and liquid inside the reactor 10, and to effectively protect other mechanical structures.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A seal driving device, characterized in that: the device comprises a reactor (10), a driving rod (11) penetrating through the reactor (10), a driven member (26) sleeved on the driving rod (11) and arranged at one end outside the reactor (10), a sealing cover (21) sleeved on the outer wall of the reactor (10), a driving member (24) sleeved on the outer wall of the sealing cover (21), and a driving motor (28) connected with the driving member (24);

The driven member (26) is arranged in the sealing cover (21); the driving part (24) is provided with a first magnet (25) close to the inner side wall of the sealing cover (21), and the driven part (26) is provided with a second magnet (27) close to the outer side wall of the sealing cover (21).

2. The seal driving device according to claim 1, wherein: one end of the driving rod (11) arranged in the sealing cover (21) is sleeved with a first sealing block (31), one side of the first sealing block (31) away from the reactor (10) is provided with a pressing plate (34), and the pressing plate (34) is fixedly connected with the reactor (10);

A first sealing ring (32) is arranged at the joint of the first sealing block (31) and the reactor (10); the first sealing block (31) is in sealing sliding connection with the driving rod (11).

3. The seal driving device according to claim 2, wherein: a second sealing block (33) is arranged on one side, far away from the reactor (10), of the first sealing block (31), a pressing plate (34) is arranged on one side, far away from the first sealing block (31), of the second sealing block (33), and a sleeve is arranged between the second sealing block (33) and the pressing plate (34);

The pressing plate (34) is fixedly connected with the driving rod (11), and the second sealing block (33), the sleeve and the pressing plate (34) are all sleeved on the outer wall of the driving rod (11).

4. A seal driving device according to claim 3, wherein: and a second sealing ring (37) is arranged at the junction of the sealing block, the sleeve and the driving rod (11).

5. A seal driving device according to claim 3, wherein: the outer wall of the sleeve is sleeved with a spring (36); one end of the spring (36) is connected with the second sealing block (33), and the other end of the spring is connected with the pressing plate (34).

6. The seal driving device according to claim 1, wherein: the upper side wall of the sealing cover (21) is connected with a pressurizing device; the pressurizing device comprises a pressurizing pipe (22) connected with the sealing cover (21), and an air supply device connected with the pressurizing pipe (22).

7. The seal driving device according to claim 1, wherein: the lower side of the sealing cover (21) is provided with a liquid discharge pipe (23), and the liquid discharge pipe (23) is provided with a valve.

8. The seal driving device according to claim 7, wherein: a pressure sensor is arranged in the liquid discharge pipe (23), and the valve is an electromagnetic valve; the pressure sensor is connected with the electromagnetic valve.