CN215720815U

CN215720815U - Mechanical sealing device of reaction kettle

Info

Publication number: CN215720815U
Application number: CN202122330495.2U
Authority: CN
Inventors: 虞浩明
Original assignee: Jiangsu East China Mingmao Machine Co ltd
Current assignee: Jiangsu East China Mingmao Machine Co ltd
Priority date: 2021-09-26
Filing date: 2021-09-26
Publication date: 2022-02-01
Anticipated expiration: 2031-09-26

Abstract

The utility model discloses a mechanical sealing device of a reaction kettle, which comprises a lower sealing ring, wherein a first gasket is fixedly connected inside the lower sealing ring, an upper sealing ring is fixedly connected at one end of the lower sealing ring, a second gasket is fixedly connected inside the upper sealing ring, a shaft sleeve is movably sleeved between the outer surface of the lower sealing ring and the outer surface of the upper sealing ring, an expansion plate is movably attached to one side of the outer surface of the first gasket, which is positioned on the second gasket, two ends of the outer surface of the expansion plate are fixedly connected with first touch plates, a liquid guide pipe is fixedly connected inside the shaft sleeve, the outer surface of a collection cavity is movably connected at one end of the liquid guide pipe, a blocking plate is movably connected to the outer surface of the shaft sleeve, the liquid guide pipe is of a curved structure, the path through which liquid flows is longer, so that the liquid can be diffused to the outside of the shaft sleeve after a longer time, and a longer time is left for working personnel to carry out treatment, thereby helping to reduce external contamination.

Description

Mechanical sealing device of reaction kettle

Technical Field

The utility model relates to the technical field of mechanical sealing, in particular to a mechanical sealing device of a reaction kettle.

Background

In the chemical reaction process, a stirring type reaction kettle is often adopted for mass transfer, the reaction working condition is high temperature and high pressure, and the raw materials such as highly toxic dangerous chemicals are involved, and in the occasions of high temperature and high pressure or toxic harmful media, a safe and effective sealing method of the reaction kettle is mechanical sealing, and the mechanical sealing is a shaft sealing device which achieves leakage resistance by keeping the fit of one pair or a plurality of pairs of end surfaces which are perpendicular to a shaft and slide relatively under the action of fluid pressure and the elasticity of a compensation mechanism and matching with auxiliary sealing.

Under the action of pressure circulation and cold-hot circulation, the sealing end face of the mechanical seal is easy to deform, the sealing performance is reduced, dangerous materials in the kettle are leaked, environmental pollution and toxicity are generated, the phenomenon that the sealing end is insufficient in sealing performance is not easy to detect initially, the leakage part cannot be plugged timely, the leakage amount can be increased, and pollution is generated. Therefore, we improve the above and propose a mechanical sealing device for reaction kettle.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model relates to a mechanical sealing device of a reaction kettle, which comprises a lower sealing ring, wherein a first gasket is fixedly connected inside the lower sealing ring, one end of the lower sealing ring is fixedly connected with an upper sealing ring, a second gasket is fixedly connected inside the upper sealing ring, a shaft sleeve is movably sleeved between the outer surface of the lower sealing ring and the outer surface of the upper sealing ring, an expansion plate is movably attached to one side of the outer surface of the first gasket, which is positioned on the second gasket, two ends of the outer surface of the expansion plate are fixedly connected with first touch plates, one end of each first touch plate is fixedly connected with a balance plate, the other end of each balance plate is movably connected with a second touch plate, a collection cavity is arranged inside the shaft sleeve, a liquid guide pipe is fixedly connected to the outer surface of the collection cavity, and a blocking piece is movably connected to the outer surface of the shaft sleeve, which is positioned on one end of the liquid guide pipe.

As a preferred technical solution of the present invention, the first gasket and the second gasket are butted with each other, and both the first gasket and the second gasket are made of rubber.

As a preferable technical scheme of the utility model, the expansion plate is made of water-absorbing expansion rubber, and the expansion plate is vertically connected with the first touch plate.

As a preferable technical scheme of the utility model, the outer surface of the balance plate is fixedly connected between the inner walls of the shaft sleeves, and the middle part of the outer surface of the balance plate is movably connected with the supporting plate.

As a preferable technical scheme of the utility model, the other end of the supporting plate is fixedly connected to the inner wall of the shaft sleeve, and the second touch plate and the first touch plate are parallel to each other.

As a preferable technical scheme of the utility model, the collection cavity is communicated with the interior of a catheter, and the catheter is of a curved structure.

As a preferable technical scheme of the utility model, the collecting cavity is of a T-shaped structure, and both ends of the collecting cavity are fixedly connected with elastic rods on the inner wall of the shaft sleeve.

The utility model has the beneficial effects that:

1. this kind of reation kettle mechanical seal device, when outwards leaking along the gap through inside gas or liquid of reation kettle, liquid at first contacts and acts on the surface of expansion board, the expansion board receives can be to one side skew under the great pressure effect, thereby the opposite side of expansion board then drives first touch panel and passes balance plate and compression spring, thereby can prevent to appear violent impact between the inner wall of expansion board and axle sleeve, the liquid that spills over gets into the inside of collecting the chamber, collect the inside of intracavity portion's liquid and flow into the inside of catheter gradually, because the catheter is bent shape structure, consequently, the route that inside liquid flows through is longer, thereby it just can diffuse the axle sleeve outside to make liquid after the longer time, leave longer time for the staff and handle, and then help reducing external pollution.

2. This kind of reation kettle mechanical seal device because the expansion plate is the swelling rubber material that absorbs water, and its volume and quality can expand by the multiple after absorbing water, consequently just produced the contact pressure between swelling rubber and first gasket and the second gasket, relies on this kind of contact pressure, and the expansion plate just can exert its certain sealed effect, plays the preliminary sealed effect of promptness, helps reducing the loss and the pollution that the leakage brought.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is a schematic view of a connection structure of a lower seal ring and an upper seal ring of a mechanical seal device of a reaction kettle according to the present invention;

FIG. 2 is a schematic view of the internal structure of a shaft sleeve of a mechanical sealing device of a reaction kettle according to the present invention;

FIG. 3 is an enlarged schematic view of part A in FIG. 2 of a mechanical sealing device of a reaction vessel according to the present invention.

In the figure: 1. a seal ring; 2. a first gasket; 3. an upper sealing ring; 4. a second gasket; 5. a shaft sleeve; 6. a baffle plate; 7. an expansion plate; 8. a first touch panel; 9. a balance plate; 10. a spring; 11. a support plate; 12. a second touch panel; 13. a collection chamber; 14. a catheter.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

Example (b): as shown in fig. 1-3, the mechanical sealing device for the reaction kettle of the present invention includes a lower sealing ring 1, a first gasket 2 is fixedly connected inside the lower sealing ring 1, an upper sealing ring 3 is fixedly connected to one end of the lower sealing ring 1, a second gasket 4 is fixedly connected inside the upper sealing ring 3, a shaft sleeve 5 is movably sleeved between the outer surface of the lower sealing ring 1 and the outer surface of the upper sealing ring 3, an expansion plate 7 is movably attached to one side of the outer surface of the first gasket 2, which is located on the second gasket 4, both ends of the outer surface of the expansion plate 7 are fixedly connected with a first contact plate 8, one end of the first contact plate 8 is fixedly connected with a balance plate 9, the other end of the balance plate 9 is movably connected with a second contact plate 12, one end of the second contact plate 12 is fixedly connected with a collection chamber 13, a liquid guide tube 14 is fixedly connected inside the shaft sleeve 5 and the outer surface of the shaft sleeve 5 is movably connected with a baffle 6.

Wherein, butt joint each other between first gasket 2 and the second gasket 4, first gasket 2 and second gasket 4 are the rubber material, can take place to leak when producing the gap between first gasket 2 and the second gasket 4.

The expansion plate 7 is made of water-absorbing expansion rubber, the expansion plate 7 is vertically connected with the first contact plate 8, leaked liquid firstly contacts and acts on the outer surface of the expansion plate 7, and the expansion plate 7 can deviate to one side under the action of large pressure.

Wherein, the outer surface of balance plate 9 is located fixedly connected with spring 10 between the inner wall of axle sleeve 5, and the surface middle part position swing joint of balance plate 9 has backup pad 11, and the opposite side of expansion plate 7 then drives first touch panel 8 and pushes away balance plate 9 and compression spring 10.

The other end of the supporting plate 11 is fixedly connected to the inner wall of the shaft sleeve 5, and the second contact plate 12 is parallel to the first contact plate 8.

Wherein, collect chamber 13 and catheter 14's inside and communicate with each other, catheter 14 is curved structure, because catheter 14 is curved structure, collects chamber 13 and is T type structure, and the both ends of collecting chamber 13 are located the equal fixedly connected with elastic rod of the inner wall of axle sleeve 5, and the route that the inside liquid of catheter 14 flows through is longer to make liquid just can spread the outside of axle sleeve 5 after the longer time, leave longer time for the staff and handle.

The working principle is as follows: the first gasket 2 in the lower sealing ring 1 is tightly butted with the second gasket 4 in the upper sealing ring 3 to mechanically seal the opening position of the reaction kettle, when a gap is formed at the butting position between the first gasket 2 and the second gasket 4, because the pressure intensity in the reaction kettle is greater than the external pressure intensity, the liquid in the reaction kettle leaks outwards along the gap under the action of larger pressure, the liquid firstly contacts and acts on the outer surface of the expansion plate 7, the expansion plate 7 can deviate to one side under the action of larger pressure, so that the other side of the expansion plate 7 drives the first touch plate 8 to push the balance plate 9 and compress the spring 10, and the violent impact between the expansion plate 7 and the inner wall of the shaft sleeve 5 can be prevented, the overflowed liquid enters the collection cavity 13, the liquid in the collection cavity 13 gradually flows into the catheter 14, and because the catheter 14 is of a curved structure, therefore the route that inside liquid flowed through is longer, thereby make liquid just can diffuse the outside of axle sleeve 5 after the long time, leave longer time for the staff and handle, and then help reducing the external contamination, because expansion plate 7 is the inflation rubber material that absorbs water, its volume and quality can the multiple inflation after absorbing water, consequently just produced the contact pressure between inflation rubber and first gasket 2 and the second gasket 4, rely on this kind of contact pressure, expansion plate 7 just can exert its certain sealed effect, play the preliminary sealed effect of timeliness, help reducing the loss and the pollution that the leakage brought.

Finally, it should be noted that: in the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the utility model. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A mechanical sealing device of a reaction kettle comprises a lower sealing ring (1) and is characterized in that a first gasket (2) is fixedly connected inside the lower sealing ring (1), an upper sealing ring (3) is fixedly connected at one end of the lower sealing ring (1), a second gasket (4) is fixedly connected inside the upper sealing ring (3), a shaft sleeve (5) is movably sleeved between the outer surface of the upper sealing ring (3) and the outer surface of the lower sealing ring (1), an expansion plate (7) is movably attached to one side of the outer surface of the first gasket (2) which is located on the second gasket (4), first touch plates (8) are fixedly connected to two ends of the outer surface of the expansion plate (7), a balance plate (9) is fixedly connected to one end of each first touch plate (8), and a second touch plate (12) is movably connected to the other end of each balance plate (9), the collecting cavity (13) is arranged inside the shaft sleeve (5), a liquid guide pipe (14) is fixedly connected to the outer surface of the collecting cavity (13), and a blocking piece (6) is movably connected to one end, located at the liquid guide pipe (14), of the outer surface of the shaft sleeve (5).

2. The mechanical sealing device for the reaction kettle according to claim 1, wherein the first gasket (2) and the second gasket (4) are butted with each other, and the first gasket (2) and the second gasket (4) are made of rubber.

3. The mechanical sealing device for the reaction kettle according to claim 1, wherein the expansion plate (7) is made of water-absorbing expansion rubber, and the expansion plate (7) is vertically connected with the first touch plate (8).

4. The mechanical sealing device of the reaction kettle according to claim 1, characterized in that a spring (10) is fixedly connected between the inner walls of the shaft sleeve (5) and the outer surface of the balance plate (9), and a support plate (11) is movably connected to the middle position of the outer surface of the balance plate (9).

5. The mechanical sealing device for the reaction kettle as claimed in claim 4, wherein the other end of the supporting plate (11) is fixedly connected to the inner wall of the shaft sleeve (5), and the second contact plate (12) and the first contact plate (8) are positioned in parallel.

6. A mechanical seal device for reactor according to claim 1, wherein said collection chamber (13) communicates with the interior of a liquid guide tube (14), said liquid guide tube (14) being of curved configuration.

7. The mechanical sealing device of the reaction kettle according to claim 1, wherein the collecting cavity (13) is of a T-shaped structure, and both ends of the collecting cavity (13) are fixedly connected with elastic rods on the inner wall of the shaft sleeve (5).