Dry gas sealing device for reaction kettle

Abstract

The utility model discloses a dry gas sealing device for a reaction kettle, which comprises a shaft sleeve, the shaft sleeve is provided with a fixing component, a bearing piece and a movable and static ring group mechanism, the reaction kettle comprises a kettle shaft and a kettle body, and the shaft sleeve is arranged on the kettle shaft and inserted between the kettle shaft and the kettle body; the dynamic and static ring mechanism comprises a static ring assembly and a dynamic ring assembly, the static ring assembly comprises a first static ring seat and a second static ring seat, the first static ring seat abuts against the surface of the kettle body, and a lip seal is arranged between the static ring seat and the shaft sleeve; a sealing piece is arranged between the first static ring seat and the second static ring seat; an air inlet hole is formed in the sealing piece, and an air outlet hole is formed in the second static ring seat; the fixing assembly is used for fixing the shaft sleeve on the kettle shaft; the dynamic and static ring mechanism is arranged on the shaft sleeve, the lip seal and the clamping ring are arranged between the first static ring seat of the dynamic and static ring mechanism and the shaft sleeve, the lip seal is fixed through the clamping ring, impurities in a kettle body can be prevented from entering the dynamic and static ring mechanism to abrade the dynamic and static ring mechanism, and therefore the service life of the dry gas sealing piece can be prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of dry gas seals, and particularly relates to a dry gas seal device for a reaction kettle. Background Technique

[0002] A dry gas seal is a pneumatic sealing device, and its principle is to form a gas film inside the seal, and isolate external solid impurities or liquids through the gas film; when the dry gas seal is applied to a reaction kettle, it is connected to the kettle shaft and seals the gap between the kettle body and the kettle shaft of the reaction kettle to prevent the liquid or impurities in the reaction kettle from overflowing under the action of the rotation of the kettle shaft. Due to the high-speed rotation of the kettle shaft, the liquid and solid impurities in the kettle will be brought into the inside of the dry gas seal. If the impurities accumulate for a long time, it will wear the static and dynamic ring mechanisms of the dry gas seal, resulting in wear of the internal structure, reduction or failure of the sealing effect, and affecting the service life of the dry gas seal. Content of the Utility Model

[0003] The purpose of the utility model is to provide a dry gas seal device for a reaction kettle, on which a static and dynamic ring mechanism is arranged, and a lip seal and a retaining ring are arranged between the first static ring seat of the static and dynamic ring mechanism and the shaft sleeve. The lip seal is fixed by the retaining ring, so as to prevent impurities in the kettle body from entering the static and dynamic ring mechanism.

[0004] The utility model is realized by the following technical solutions:

[0005] A dry gas seal device for a reaction kettle includes a shaft sleeve, on which a fixing component, a bearing component and a static and dynamic ring group mechanism are arranged. The reaction kettle includes a kettle shaft and a kettle body. The shaft sleeve is arranged on the kettle shaft and inserted between the kettle shaft and the kettle body; the static and dynamic ring mechanism includes a static ring component and a dynamic ring component. The static ring component includes a first static ring seat and a second static ring seat. The first static ring seat abuts against the surface of the kettle body, and a lip seal is arranged between the first static ring seat and the shaft sleeve; a seal is arranged between the first static ring seat and the second static ring seat, and the seal is fixed to the first static ring seat by a locking bolt; the dynamic ring component is arranged in the seal, an air inlet hole is arranged on the seal, and an air outlet hole is arranged on the second static ring seat; the fixing component is used to fix the shaft sleeve on the kettle shaft.

[0006] Further, a sealing gasket is arranged between the first static ring seat and the kettle body.

[0007] Further, a retaining ring is arranged between the sealing gasket and the lip seal on the first static ring seat, and the retaining ring is used for limiting the lip seal.

[0008] Further, the dynamic ring component includes a first dynamic ring, a second dynamic ring and a spring seat. The first dynamic ring and the second dynamic ring are arranged at intervals up and down, and the spring seat is arranged between the first dynamic ring and the second dynamic ring; the first dynamic ring and the second dynamic ring are arranged at intervals with the shaft sleeve.

[0009] Further, a first O-ring is provided between the first moving ring and the second moving ring and the spring seat.

[0010] Further, a second O-ring is provided between the first moving ring and the first static ring seat and between the second moving ring and the second static ring seat.

[0011] Further, the bearing member is arranged above the second static ring seat and is rotatably connected to the shaft sleeve. A positioning block is provided between the bearing member and the fixing assembly, and the positioning block positions the bearing member.

[0012] Further, a lifting eye bolt is provided on the bearing member, and the lifting eye bolt connects the second static ring seat and the seal.

[0013] Further, the fixing assembly includes an outer wedge ring and an inner wedge ring. The inner wedge ring is arranged above the outer wedge ring and is connected with the outer wedge ring in an inserted and matched manner. The outer wedge ring and the inner wedge ring are connected by fixing bolts.

[0014] Further, at least one annular groove is provided on the inner side of the shaft sleeve, and a third O-ring is provided in the annular groove.

[0015] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0016] 1) In the utility model, a static and dynamic ring mechanism is provided on the shaft sleeve. A lip seal and a snap ring are provided between the first static ring seat of the static and dynamic ring mechanism and the shaft sleeve. The lip seal is fixed by the snap ring, which can prevent impurities in the kettle body from entering the static and dynamic ring mechanism and causing wear to the static and dynamic ring mechanism, thereby extending the service life of the dry gas seal.

[0017] 2) In the utility model, a fixing assembly is provided above the bearing member on the shaft sleeve. The fixing assembly includes an outer wedge ring and an inner wedge ring. The inner wedge ring is arranged above the outer wedge ring and is connected with the outer wedge ring in an inserted and matched manner. By adjusting the insertion depth of the inner wedge ring into the outer wedge ring, the tightness of the shaft sleeve on the kettle shaft can be adjusted, and the operation is simple and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 It is a schematic cross-sectional structure diagram of the dry gas seal device for the reaction kettle of the present utility model.

[0020] Wherein: 1 - stationary ring assembly, 11 - first stationary ring seat, 12 - second stationary ring seat, 121 - air outlet hole, 13 - seal, 131 - air inlet hole, 2 - rotating ring assembly, 21 - first rotating ring, 22 - second rotating ring, 23 - spring seat, 3 - lip seal, 4 - snap ring, 5 - gasket, 6 - bearing component, 61 - bearing seat, 62 - roller, 63 - oil cup, 64 - positioning block, 65 - lifting screw, 66 - connecting bolt, 7 - fixing component, 71 - outer wedge ring, 72 - inner wedge ring, 73 - fixing bolt, 8 - first O-ring, 9 - second O-ring, 10 - third O-ring, 20 - kettle body, 30 - kettle shaft. Specific embodiments

[0021] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model.

[0022] Embodiment 1:

[0023] The main structure of this embodiment, a dry gas seal device for a reactor, as Figure 1As shown in the figure, it includes a bushing. A fixing component 7, a bearing component 6, and a static and dynamic ring group mechanism are sequentially arranged on the bushing from top to bottom. The reactor includes a kettle shaft 30 and a kettle body 20. The bushing is sleeved on the kettle shaft 30 and inserted into the gap between the kettle shaft 30 and the kettle body 20. The static and dynamic ring mechanism includes a static ring component 1 and a dynamic ring component 2. The dynamic ring component 2 is arranged inside the static ring component 1. The static ring component 1 includes a first static ring seat 11 and a second static ring seat 12. The second static ring seat 12 is arranged above the first static ring seat 11 and at an interval. The first static ring seat 11 abuts against the surface of the kettle body 20. A seal 13 is arranged between the first static ring seat 11 and the second static ring seat 12. The seal 13 is fixed to the first static ring seat 11 by a locking bolt. A lip seal 3 is arranged between the first static ring seat 11 and the bushing. The lip seal 3 is used to prevent impurities in the kettle body 20 from entering the static ring component 1 and wearing the dynamic ring component 2. The dynamic ring component 2 is arranged inside the seal 13. An air inlet hole 131 is arranged on the seal 13, and an air outlet hole 121 is arranged on the second static ring seat 12. After the dynamic ring component 2 rotates, an air film is formed inside the first static ring seat 11, and the air film can prevent the liquid in the kettle body 20 from seeping out. The fixing component 7 is arranged at the end of the bushing and fixes the bushing on the kettle shaft 30. A gasket 5 is arranged between the first static ring seat 11 and the kettle body 20, which can further prevent the liquid or impurities from seeping out. A snap ring 4 is arranged on the first static ring seat 11 between the gasket 5 and the lip seal 3. The snap ring 4 is used to limit the lip seal 3, and the snap ring 4 can prevent the lip seal 3 from shifting. There are two annular grooves arranged on the inner side of the bushing, and a third O-ring 10 is arranged in the annular grooves. The third O-ring 10 can prevent the liquid from seeping out along the kettle shaft 30 and play a sealing role.

[0024] Embodiment 2:

[0025] Based on the above embodiment, in this embodiment, the dynamic ring component 2 is further defined. The dynamic ring component 2 includes a first dynamic ring 21, a second dynamic ring 22, and a spring seat 23. The first dynamic ring 21 and the second dynamic ring 22 are arranged at an interval up and down. The spring seat 23 is arranged between the first dynamic ring 21 and the second dynamic ring 22 and is connected to the second dynamic ring 22 of the first dynamic ring 21. The first dynamic ring 21 and the second dynamic ring 22 are arranged at an interval from the bushing. A first O-ring 8 is arranged between the first dynamic ring 21 and the second dynamic ring 22 and the spring seat 23. The first O-ring 8 is used to seal the gap between the first dynamic ring 21, the second dynamic ring 22, and the spring seat 23. A second O-ring 9 is arranged between the first dynamic ring 21 and the first static ring seat 11 and between the second dynamic ring 22 and the second static ring seat 12. The second O-ring 9 also plays a sealing role and can prevent the liquid from entering the surface of the dynamic ring component 2. Other parts of this embodiment are the same as those of the above embodiment and will not be elaborated here.

[0026] Embodiment 3:

[0027] On the basis of the above embodiment, the bearing member 6 is further defined in this embodiment. The bearing member 6 is arranged above the second stationary ring seat 12 and is rotatably connected to the bushing. The bearing member 6 includes a bearing seat 61 and rollers 62. An oil cup 63 is arranged at the end of the rollers 62. A positioning block 64 is arranged between the bearing seat 61 of the bearing member 6 and the fixing assembly 7. The positioning block 64 positions the bearing member 6, and the positioning block 64 and the bearing seat 61 are fixed by a connecting bolt 66. A lifting eye bolt 65 is arranged on the bearing seat 61 of the bearing member 6 on the side of the positioning block 64. The lifting eye bolt 65 connects and fixes the second stationary ring seat 12 and the seal 13. Other parts of this embodiment are the same as those of the above embodiment and will not be described in detail here.

[0028] Embodiment 4:

[0029] On the basis of the above embodiment, the fixing assembly 7 is further defined in this embodiment. The fixing assembly 7 includes an outer wedge ring 71 and an inner wedge ring 72. The inner wedge ring 72 is arranged above the outer wedge ring 71 and is connected to the outer wedge ring 71 in an inserted and mating manner. The outer wedge ring 71 and the inner wedge ring 72 are connected by fixing bolts 73. The outer wedge ring 71 is fixedly connected to the bushing. A guiding groove is arranged on the outer wedge ring 71, and an insertion portion is arranged on the inner wedge ring 72. After the insertion portion is inserted into the guiding groove, it exerts extrusion on the end of the bushing so that the bushing locks and fixes the autoclave shaft 30. Other parts of this embodiment are the same as those of the above embodiment and will not be described in detail here.

[0030] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0031] In addition, when terms such as "horizontal" and "vertical" appear in the description of the present utility model, it does not mean that the components are required to be absolutely horizontal or hanging vertically, but can be slightly inclined. For example, "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and defined, the terms "arranged", "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0033] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of the present utility model falls within the protection scope of the present utility model.

Claims

1. A dry gas seal device for a reaction kettle, characterized in that, It includes a bushing, on which a fixing component, a bearing component and a static-dynamic ring mechanism are arranged. The reactor includes a kettle shaft and a kettle body. The bushing is arranged on the kettle shaft and inserted between the kettle shaft and the kettle body. The static-dynamic ring mechanism includes a static ring component and a dynamic ring component. The static ring component includes a first static ring seat and a second static ring seat. The first static ring seat abuts against the surface of the kettle body, and a lip seal is arranged between the first static ring seat and the bushing. A sealing element is arranged between the first static ring seat and the second static ring seat, and the sealing element is fixed to the first static ring seat by a locking bolt. The dynamic ring component is arranged inside the sealing element. An air inlet hole is arranged on the sealing element, and an air outlet hole is arranged on the second static ring seat. The fixing component is used to fix the bushing on the kettle shaft.

2. The dry gas seal device for a reactor according to claim 1, characterized in that, A sealing gasket is arranged between the first static ring seat and the kettle body.

3. The dry gas seal device for a reactor as claimed in claim 2, wherein A snap ring is arranged between the sealing gasket and the lip seal on the first static ring seat, and the snap ring is used to limit the lip seal.

4. The dry gas seal device for a reactor according to claim 1, wherein The dynamic ring component includes a first dynamic ring, a second dynamic ring and a spring seat. The first dynamic ring and the second dynamic ring are arranged at intervals up and down, and the spring seat is arranged between the first dynamic ring and the second dynamic ring. The first dynamic ring and the second dynamic ring are arranged at intervals with the bushing.

5. The dry gas seal device for a reactor according to claim 4, characterized in that, A first O-ring is arranged between the first dynamic ring and the second dynamic ring and the spring seat.

6. The dry gas seal device for a reactor according to claim 4, wherein A second O-ring is arranged between the first dynamic ring and the first static ring seat and between the second dynamic ring and the second static ring seat.

7. The dry gas seal device for a reactor according to claim 1, characterized in that, The bearing component is arranged above the second static ring seat and is rotatably connected with the bushing. A positioning block is arranged between the bearing component and the fixing component, and the positioning block positions the bearing component.

8. The dry gas seal device for a reaction kettle according to claim 7, wherein, A lifting eye screw is arranged on the bearing component, and the lifting eye screw connects the second static ring seat and the sealing element.

9. The dry gas seal device for a reactor according to claim 1, wherein, The fixing component includes an outer wedge ring and an inner wedge ring. The inner wedge ring is arranged above the outer wedge ring and is connected with the outer wedge ring in an inserted and matched manner. The outer wedge ring and the inner wedge ring are connected by fixing bolts.

10. The dry gas seal device for a reactor according to claim 1, characterized in that, At least one annular groove is arranged on the inner side of the bushing, and a third O-ring is arranged in the annular groove.

Images