CN215673602U - Static pressure dry gas sealing device for kettle - Google Patents
Static pressure dry gas sealing device for kettle Download PDFInfo
- Publication number
- CN215673602U CN215673602U CN202120849394.3U CN202120849394U CN215673602U CN 215673602 U CN215673602 U CN 215673602U CN 202120849394 U CN202120849394 U CN 202120849394U CN 215673602 U CN215673602 U CN 215673602U
- Authority
- CN
- China
- Prior art keywords
- shell
- hole
- axial
- ring
- shaft sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to a static pressure dry gas sealing device for a kettle, which comprises a shaft sleeve component, a shell component and a sealing component, wherein the shaft sleeve component is arranged on the shaft sleeve component; the shaft sleeve assembly consists of an inner shaft sleeve and an outer shaft sleeve; the shell component consists of a first shell, a second shell, a third shell and a bearing; the sealing component consists of a static ring and a dynamic ring; the shell component is provided with an axial through hole I, an axial through hole II, an axial through hole III, an axial hole I, an axial hole II, a radial through hole I, an internal flow passage I, an annular groove II and an annular groove III; the static ring is provided with an axial through hole IV and an annular groove IV, and dust rings with special structures are arranged at the matching surface of the outer diameter of the shell III and the kettle body, the matching surface of the inner diameter of the dynamic ring and the inner shaft sleeve, the matching surface of the outer diameter of the static ring and the shell III and the matching surface of the inner diameter of the inner shaft sleeve and the shaft; the outer diameter of the dynamic ring is equal to that of the static ring. The utility model has no abrasive material, can effectively avoid material accumulation, and simultaneously realizes online disinfection operation through the internal flow passage.
Description
Technical Field
The utility model relates to a sealing device, in particular to a static pressure dry gas sealing device for a kettle.
Background
Because the transmission shaft penetrates inside and outside the reaction kettle, a circumferential gap exists between the shaft and the reaction kettle, and a medium in the reaction kettle can leak outwards through the gap, so a shaft seal device for preventing leakage is required; the shaft seal has many kinds, and the mechanical seal has the advantages of less leakage, long service life and the like, so the mechanical seal is widely applied to the reaction kettle.
The cleanliness requirement of production equipment such as a reaction kettle and the like in the pharmaceutical industry is high, the surface directly contacted with the material is required to be smooth and flat without a cleaning blind area and release substances into the medicine, and the direct contact part with the material is required to be cleaned and sterilized in place as far as possible; the common mechanical seal is arranged on equipment in the pharmaceutical industry, so that the problems of material accumulation on the surface of a contacted material, falling of end face grinding materials into a kettle, incapability of online disinfection and the like easily occur.
Disclosure of Invention
The utility model mainly aims to solve the problems that materials on the surface of a contact material are easy to accumulate, end face grinding materials fall into a kettle and online disinfection cannot be realized in common mechanical sealing, and provides a static pressure dry gas sealing device for the kettle.
The technical scheme adopted by the utility model for solving the technical problems is as follows: a static pressure dry gas sealing device for a kettle comprises a shaft sleeve assembly, a sealing assembly and a shell assembly, wherein the sealing assembly is sleeved below the shaft sleeve assembly, the shell assembly is sleeved above the shaft sleeve assembly, the shaft sleeve assembly comprises an inner shaft sleeve sleeved on a shaft and an outer shaft sleeve sleeved on the inner shaft sleeve, the sealing assembly comprises a moving ring sleeved at the bottom end of the inner shaft sleeve and a static ring sleeved above the moving ring, the shell assembly comprises a first shell, a second shell and a third shell which are axially arranged and sequentially connected together in a penetrating manner from top to bottom, and a bearing arranged in an annular cavity formed between the second shell and the inner shaft sleeve, the first shell is provided with a first axial through hole and a second axial through hole, the second shell is provided with a third axial through hole and a first axial through hole from the upper end face, the second shell is provided with a first radial through hole, and the third shell is provided with a second axial hole from the upper end face, an inner runner I is arranged in the shell III, and an annular groove II is formed in the lower end face of the shell III.
Furthermore, the first axial through hole, the third axial through hole, the second axial hole, the first internal flow channel and the second annular groove are communicated, and the second axial through hole, the first axial hole and the first radial through hole are communicated.
Furthermore, a first annular groove is formed in the lower end of the outer diameter of the shell, a third annular groove is formed in the upper end of the outer diameter of the shell, and the first annular groove, the third annular groove and the first radial through hole are communicated.
Furthermore, the upper end of the static ring is installed in the second annular groove, O-shaped rings are installed at the outer diameter position and the inner diameter position of the upper end of the static ring, a fourth axial through hole is formed in the static ring in the axial direction, a fourth annular groove is formed in the lower end face of the static ring, and the fourth axial through hole is communicated with the fourth annular groove.
Furthermore, a first dustproof ring is arranged on the matching surface of the outer diameter of the shell and the kettle body, a third dustproof ring is arranged on the matching surface of the inner diameter of the movable ring and the inner shaft sleeve, and the right cross sections of the first dustproof ring and the third dustproof ring are L-shaped.
Furthermore, the outer diameter of the static ring and the matching surface of the shell III are provided with a dust ring II, the inner diameter of the inner shaft sleeve and the matching surface of the shaft are provided with a dust ring IV, and the right cross sections of the dust ring II and the dust ring IV are all gamma.
Further, the outer diameter of the dynamic ring is equal to the outer diameter of the static ring.
The utility model achieves the following beneficial effects: (1) the outer diameter of the movable ring and the outer diameter of the static ring are set to be the same value, so that the accumulation of materials at the sealing ring can be effectively avoided; by setting a gamma-shaped or gamma-shaped dust ring, the accumulation of material at the relevant position caused by the conventional O-shaped ring groove structure can be effectively eliminated.
(2) In the operation process of the equipment, high-pressure gas is introduced between the sealing end faces through the axial through hole I, the axial through hole III, the internal flow channel I and the axial through hole IV, the sealing end faces are opened through opening force generated by pressure difference, and abrasive materials are prevented from being generated.
(3) During online disinfection operation, high-temperature steam is introduced between the sealing end faces through the axial through hole I, the axial through hole III, the internal flow channel I and the axial through hole IV to disinfect the sealing end faces; part of the high-temperature gas introduced into the sealing end face flows to the outer diameter of the moving ring and enters the kettle; other high-temperature steam introduced into the sealing end face flows to the inner diameter part of the movable ring, flows into the first annular groove and the second annular groove through an annular cavity and a radial through hole formed between the shell component and the outer shaft sleeve, and accordingly disinfects parts in the sealing cavity; and high-temperature steam flowing to the inner diameter of the rotating ring flows out through the axial through hole II.
Drawings
FIG. 1 is a schematic structural diagram of a static pressure dry gas sealing device for a kettle according to the present invention.
FIG. 2 is a schematic structural view of the lower end face of a stationary ring of the static pressure dry gas sealing device for the kettle.
In the figure: 1. a bushing assembly; 101. an inner sleeve; 102. an outer sleeve; 2. a seal assembly; 201. a moving ring; 202. a stationary ring; 20201. a fourth axial through hole; 20202. a fourth annular groove; 3. a housing assembly; 301. a third shell; 30101. a second annular groove; 30102. a first internal flow passage; 30103. a second axial hole; 30104. a third annular groove; 30105. an upper annular groove III; 30106. a third axial hole; 302. a second shell; 30201. a third axial through hole; 30202. a first annular groove; 30203. a first upper annular groove; 30204. a first radial through hole; 30205. a first axial hole; 30206. a second upper annular groove; 303. a bearing; 304. a first shell; 30401. a first axial through hole; 30402. a second axial through hole; 4. a round nut; 5. a dust ring IV; 6. a dust ring III; 7. a dust ring II; 8. a first dust ring; 9. a spring; 10. a first bolt; 11. a clamping device; 1101. a base plate; 1102. a clamping ring; 1103. a cover plate; 1104. and a second bolt.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings.
The embodiment of the utility model relates to a static pressure dry gas sealing device for a kettle, which comprises a shaft sleeve assembly 1 sleeved on a shaft, a sealing assembly 2 sleeved below the shaft sleeve assembly 1 and a shell assembly 3 sleeved above the shaft sleeve assembly 1, wherein the shaft sleeve assembly 1 comprises an inner shaft sleeve 101 sleeved on the shaft and an outer shaft sleeve 102 sleeved on the inner shaft sleeve 101, the shell assembly 3 comprises a first shell 304, a second shell 302 and a third shell 301 which are axially arranged and sequentially connected together in a penetrating manner from top to bottom, and a bearing 303 arranged in an annular cavity formed between the second shell 302 and the inner shaft sleeve 101, and the sealing assembly 2 comprises a movable ring 201 sleeved at the bottom end of the inner shaft sleeve 101 and a static ring 202 sleeved above the movable ring 201.
Further, the lower end surface of the outer shaft sleeve 102 is arranged to be closely attached to the upper end surface of the movable ring 201, and the upper end surface of the outer shaft sleeve 102 is arranged to be closely attached to the lower end surface of the bearing 303.
Furthermore, a circular nut 4 is installed in an annular cavity formed between the first outer shell 304 and the inner shaft sleeve 101, and the lower end face of the circular nut 4 is tightly attached to the upper end face of the bearing 303.
Further, the first shell 304, the second shell 302 and the third shell 301 are fixed together by a bolt one 10.
Further, a clamping device 11 is arranged at the top end of the inner shaft sleeve 101, the inner shaft sleeve 101 is fixed on the shaft through the clamping device 11, and the clamping device 11 comprises a clamping ring 1102 sleeved on the inner shaft sleeve 101, a bottom plate 1101 sleeved below the clamping ring 1102, a cover plate 1103 sleeved above the clamping ring 1102, and a second bolt 1104 for threading the bottom plate 1101 and the cover plate 1103 together.
Furthermore, the first shell 304 is provided with a first axial through hole 30401 and a second axial through hole 30402, the second shell 302 is provided with a third axial through hole 30201 and a first axial hole 30205 from the upper end surface, the second shell 302 is provided with a first radial through hole 30204, the third shell 301 is provided with a second axial hole 30103 from the upper end surface, an inner flow passage I30102 is arranged in the shell III 301, an annular groove II 30101 is arranged on the lower end face of the shell III 301, the first axial through hole 30401, the third axial through hole 30201, the second axial hole 30103, the first internal flow passage 30102 and the second annular groove 30101 are communicated, the axes of the first axial through hole 30401, the third axial through hole 30201 and the second axial hole 30103 are collinear and have the same diameter, the second axial through hole 30402, the first axial hole 30205 and the first radial through hole 30204 are communicated, the axes of the second axial through hole 30402 and the first axial through hole 30205 are collinear and have the same diameter.
Furthermore, the lower end of the outer diameter of the second shell 302 is provided with a first annular groove 30202, the upper end of the outer diameter of the third shell 301 is provided with a third annular groove 30104, and the first annular groove 30202, the third annular groove 30104 and the first radial through hole 30204 are communicated.
Furthermore, an upper annular groove 30203 and an upper annular groove 30206 are formed in the upper end surface of the second housing 302, an upper annular groove three 30105 is formed in the upper end surface of the third housing 301, the axes of the upper annular groove 30203 and the upper annular groove three 30105 are collinear with the axis of the third axial through hole 30201, the axis of the upper annular groove two 30206 is collinear with the axis of the second axial through hole 30402, the inner diameters of the upper annular groove 30203 and the upper annular groove three 30105 are equal to the diameter of the third axial through hole 30201, the inner diameter of the upper annular groove two 30206 is equal to the diameter of the second axial through hole 30402, and O-rings are mounted in the upper annular groove 30203, the upper annular groove two 30206, and the upper annular groove three 30105.
Furthermore, the upper end of the stationary ring 202 is installed in the second annular groove 30101, O-rings are installed at the outer diameter and the inner diameter of the upper end of the stationary ring 202, a fourth axial through hole 20201 is formed in the axial direction of the stationary ring 202, a fourth annular groove 20202 is formed in the lower end face of the stationary ring 202, and the fourth axial through hole 20201 is communicated with the fourth annular groove 20202.
Further, an axial hole III 30106 is formed in the second annular groove 30101, a spring 9 is arranged in the axial hole III 30106, and the lower end face of the spring 9 is tightly attached to the upper end face of the stationary ring 202.
Furthermore, a first dustproof ring 8 is installed on the matching surface of the outer diameter of the third outer shell 301 and the kettle body, a third dustproof ring 6 is installed on the matching surface of the inner diameter of the movable ring 201 and the inner shaft sleeve 101, and the right cross sections of the first dustproof ring 8 and the third dustproof ring 6 are reversed.
Further, a second dust ring 7 is installed on the matching surface of the outer diameter of the static ring 202 and the third outer shell 301, a fourth dust ring 5 is installed on the matching surface of the inner diameter of the inner shaft sleeve 101 and the shaft, and the right side cross-sectional shapes of the second dust ring 7 and the fourth dust ring 5 are all-first.
Further, the outer diameter of the rotating ring 201 is equal to the outer diameter of the stationary ring 202, and the upper end surface of the rotating ring 201 is closely attached to the lower end surface of the stationary ring 202.
Furthermore, O-shaped rings are arranged between the inner shaft sleeve 101 and the shaft, between the movable ring 201 and the inner shaft sleeve 101, between the third shell 301 and the kettle body, and between the second shell 302 and the third shell 301.
Claims (7)
1. A static pressure dry gas sealing device for a kettle is characterized by comprising a shaft sleeve assembly, a sealing assembly and a shell assembly, wherein the sealing assembly is sleeved below the shaft sleeve assembly, the shell assembly is sleeved above the shaft sleeve assembly, the shaft sleeve assembly comprises an inner shaft sleeve sleeved on a shaft and an outer shaft sleeve sleeved on the inner shaft sleeve, the sealing assembly comprises a moving ring sleeved at the bottom end of the inner shaft sleeve and a static ring sleeved above the moving ring, the shell assembly comprises a first shell, a second shell and a third shell which are axially arranged and sequentially connected together in a penetrating manner from top to bottom, and a bearing arranged in an annular cavity formed between the second shell and the inner shaft sleeve, the first shell is provided with a first axial through hole and a second axial through hole, the second shell is provided with a third axial through hole and a first axial through hole from the upper end face, the second shell is provided with a first radial through hole, and the third shell is provided with a second axial hole from the upper end face, an inner runner I is arranged in the shell III, and an annular groove II is formed in the lower end face of the shell III.
2. The static pressure dry gas sealing device for the kettle according to claim 1, wherein: the first axial through hole, the third axial through hole, the second axial hole, the first internal flow channel and the second annular groove are communicated, and the second axial through hole, the first axial hole and the first radial through hole are communicated.
3. The static pressure dry gas sealing device for the kettle according to claim 1 or 2, wherein: the lower end of the outer diameter of the shell is provided with a first annular groove, the upper end of the outer diameter of the shell is provided with a third annular groove, and the first annular groove, the third annular groove and the first radial through hole are communicated.
4. The static pressure dry gas sealing device for the kettle according to claim 1 or 2, wherein: the upper end of the static ring is installed in the second annular groove, O-shaped rings are installed at the outer diameter position and the inner diameter position of the upper end of the static ring, a fourth axial through hole is formed in the static ring in the axial direction, a fourth annular groove is formed in the lower end face of the static ring, and the fourth axial through hole is communicated with the fourth annular groove.
5. The static pressure dry gas sealing device for the kettle according to claim 1, wherein: the outer diameter of the shell III is matched with the matching surface of the kettle body, a first dustproof ring is arranged on the inner diameter of the movable ring and the matching surface of the inner shaft sleeve, and the right side cross sections of the first dustproof ring and the third dustproof ring are L-shaped.
6. The static pressure dry gas sealing device for the kettle according to claim 1, wherein: the outer diameter of the static ring and the matching surface of the shell III are provided with a dust ring II, the inner diameter of the inner shaft sleeve and the matching surface of the shaft are provided with a dust ring IV, and the right cross section of the dust ring II and the dust ring IV is shaped as a Gamma.
7. The static pressure dry gas sealing device for the kettle according to claim 1, wherein: the outer diameter of the dynamic ring is equal to that of the static ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120849394.3U CN215673602U (en) | 2021-04-23 | 2021-04-23 | Static pressure dry gas sealing device for kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120849394.3U CN215673602U (en) | 2021-04-23 | 2021-04-23 | Static pressure dry gas sealing device for kettle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215673602U true CN215673602U (en) | 2022-01-28 |
Family
ID=79971054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120849394.3U Active CN215673602U (en) | 2021-04-23 | 2021-04-23 | Static pressure dry gas sealing device for kettle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215673602U (en) |
-
2021
- 2021-04-23 CN CN202120849394.3U patent/CN215673602U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101301763B1 (en) | Rotary joint | |
| TW464742B (en) | Rotary joint for alternating media | |
| CN2804440Y (en) | Mechanical sealing gland without droping ring | |
| CN102128269A (en) | Conical surface mechanical sealing device | |
| CN202171002U (en) | Conical surface mechanical sealing device | |
| CN215673602U (en) | Static pressure dry gas sealing device for kettle | |
| CN110259952A (en) | A kind of centrifuge rotary dynamic sealing device | |
| CN210950311U (en) | Bidirectional air-float rotary joint | |
| CN205715677U (en) | A kind of nano-level grinder Bidirectional balance mechanical seal device | |
| CN112178195A (en) | Container axial double-end-face split mechanical seal | |
| CN110778823A (en) | Bidirectional air-float rotary joint | |
| CN217152989U (en) | Magnetic liquid sealing device for coal chemical reactor | |
| CN214789052U (en) | Single-end-face mechanical sealing device capable of being disinfected on line | |
| CN204061290U (en) | Chemical pump mechanical seal device | |
| JP3440418B2 (en) | Shaft sealing device | |
| CN201120550Y (en) | Liquid dipping numerical control turning table | |
| CN215673603U (en) | High-pressure static-pressure dry gas sealing device | |
| CN220452722U (en) | Powder stirring shaft sealing device | |
| CN215334464U (en) | Mechanical sealing device suitable for small radial dimension occasion | |
| CN2298389Y (en) | Machinery sealing device with anti-block and abrasion resistant | |
| CN112178196A (en) | Container radial double-end-face split mechanical seal | |
| CN220168593U (en) | Butterfly valve with maintenance sealing pair | |
| CN219102033U (en) | Rotary shaft sealing structure | |
| JP2005140258A (en) | Mechanical seal device | |
| CN212155803U (en) | Split lip seal device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |