CN220328588U - Reation kettle machine seals and puts - Google Patents
Reation kettle machine seals and puts Download PDFInfo
- Publication number
- CN220328588U CN220328588U CN202321845052.XU CN202321845052U CN220328588U CN 220328588 U CN220328588 U CN 220328588U CN 202321845052 U CN202321845052 U CN 202321845052U CN 220328588 U CN220328588 U CN 220328588U
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- sleeve
- main shaft
- conical surface
- conical
- machine
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- 238000007789 sealing Methods 0.000 claims abstract description 42
- 238000006243 chemical reaction Methods 0.000 claims abstract description 29
- 238000012856 packing Methods 0.000 claims description 13
- 210000004907 gland Anatomy 0.000 claims description 12
- 239000000126 substance Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 8
- 238000006116 polymerization reaction Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model relates to the technical field of chemical mechanical sealing, in particular to a reaction kettle mechanical sealing device, which relates to a reaction kettle tank body and a main shaft, wherein a connecting shaft sleeve is arranged on the reaction kettle tank body, the main shaft is arranged in the connecting shaft sleeve and extends into the reaction kettle tank body, an annular first conical surface is arranged on the main shaft in the range of the connecting shaft sleeve, an organic sealing sleeve is arranged on the main shaft, an annular first conical surface is also arranged on the inner wall of the middle part of the organic sealing sleeve, the first conical surface on the inner wall of the organic sealing sleeve is connected with the first conical surface on the main shaft in a matched manner, a locking cover is arranged on the main shaft at the outer side of the organic sealing sleeve, and the locking cover is used for limiting the organic sealing sleeve to axially displace on the main shaft. According to the reactor mechanical seal device, the mechanical seal sleeve is matched with the main shaft by adopting the first conical surface, so that the close fit is achieved, the assembly is simple and convenient, the on-site assembly is convenient, and the sealing performance is improved.
Description
Technical Field
The utility model relates to the technical field of chemical mechanical sealing, in particular to a reaction kettle mechanical sealing device.
Background
The inside of the polyester final polymerization reaction kettle is in a vacuum environment and is high in temperature, and the reaction materials are rotationally stirred through a main shaft, so that the polyester final polymerization reaction kettle needs to be isolated and sealed from the outside, and the sealing device is called mechanical sealing. In the production process of chemical fiber industry, a polyester final polymerization reaction kettle which is a large horizontal stirring reaction kettle in a high-temperature vacuum environment is required, so that an organic seal is required to be arranged, and not only can the sealing be carried out, but also the materials in the reaction kettle can be stirred through the rotation power of a main shaft transmission. At present, although the final polymerization kettle mechanical seal has a simple structure, the mechanical seal has a plurality of defects in structure, and the internal bearing of the mechanical seal is mainly used for bearing the weight of a final polymerization kettle stirrer through a main shaft. The machine seal is large-scale equipment, taking the current 1000 ton/day device as an example, the weight of the machine seal is more than 2 tons, the machine seal is integrally installed on site when the large-scale equipment is overhauled, and a locking device is not used for fixing the machine seal and the main shaft after the machine seal is installed in place. The machine seal is designed with the field installation difficulty taken into consideration, so that the gap between the machine seal and the main shaft, also called tolerance, is 0.3mm-0.5mm, and if the gap is smaller than 0.3mm, the installation is difficult; if the gap is large, the sealing performance is affected.
Disclosure of Invention
The utility model aims to solve the technical defects and provides the reactor sealing device, wherein the main shaft of the reactor sealing device is matched with the machine sleeve by adopting conical surfaces, and the reactor sealing device is locked, so that the sealing performance is ensured, and meanwhile, the site assembly is more convenient.
The utility model discloses a reaction kettle mechanical seal device, which relates to a reaction kettle tank body and a main shaft, wherein a connecting shaft sleeve is arranged on the reaction kettle tank body, the main shaft is arranged in the connecting shaft sleeve and extends into the reaction kettle tank body, an annular first conical surface is arranged on the main shaft in the range of the connecting shaft sleeve, the diameter of the main shaft outside the first conical surface is smaller than that of the main shaft inside the first conical surface, a mechanical seal sleeve is arranged on the main shaft, an annular first conical surface is also arranged on the inner wall of the middle part of the mechanical seal sleeve, the first conical surface on the inner wall of the mechanical seal sleeve is connected with the first conical surface on the main shaft in a matched manner, and a locking cover is arranged on the main shaft outside the mechanical seal sleeve and used for limiting the mechanical seal sleeve to axially displace on the main shaft; the end part of the connecting shaft sleeve on the inner side of the reaction kettle tank body is provided with a packing gland, one end of the packing gland extends into a gap between the connecting shaft sleeve and the main shaft, packing is arranged between the packing gland and the main shaft at the position, a bearing is arranged between the connecting shaft sleeve and the machine sleeve, a plurality of oil seals are arranged between the machine sleeve on two sides of the bearing and the connecting shaft sleeve, and a bearing gland is arranged between the outer end part of the connecting shaft sleeve and the machine sleeve.
The inner wall of the outer side end part and/or the inner side end part of the machine sleeve is/are respectively provided with a second annular conical surface and a third conical surface, the second conical surface and the third conical surface are respectively reduced from the end part of the machine sleeve to the inner diameter gradually, a first conical sleeve is arranged between the machine sleeve and the main shaft at the corresponding position of the second conical surface, a second conical sleeve is arranged between the machine sleeve and the main shaft at the corresponding position of the third conical surface, the locking cover supports the second conical sleeve, a bushing is fixed on the main shaft at the inner side of the machine sleeve, and the bushing supports the second conical sleeve.
The end of the first conical sleeve outside the envelope extends outwards to form an annular projection against which the locking cap abuts.
An inner sealing ring and an outer sealing ring are respectively arranged on the inner side and the outer side of the annular bulge of the first conical sleeve, the outer sealing ring is clamped between the locking cover and the annular bulge of the first conical sleeve, and the inner sealing ring is clamped between the annular bulge of the first conical sleeve and the end face of the machine sleeve.
An annular projection is provided at the end of the second conical sleeve outside the envelope and against which the bushing abuts.
Sealing gaskets are arranged on the inner side and the outer side of the annular bulge of the second conical sleeve.
The outside of connecting axle sleeve sets up annular step, annular step supports the reation kettle jar body, is provided with the main sealing washer between annular step and the reation kettle jar body.
According to the reactor mechanical seal device, the mechanical seal sleeve is matched with the main shaft by adopting the first conical surface, so that the close fit is achieved, the assembly is simple and convenient, the on-site assembly is convenient, and the sealing performance is improved.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic diagram of the fit between the envelope and the spindle of the present utility model;
FIG. 3 is an enlarged partial schematic view of the first conical sleeve of FIG. 2;
fig. 4 is an enlarged partial schematic view of the second taper sleeve of fig. 2.
Detailed Description
In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.
Example 1:
as shown in fig. 1, 2, 3 and 4, the utility model discloses a reaction kettle mechanical seal device, which relates to a reaction kettle tank body 18 and a main shaft 21, wherein a connecting shaft sleeve 7 is arranged on the reaction kettle tank body 18, the main shaft 21 is arranged in the connecting shaft sleeve 7 and extends into the reaction kettle tank body 18, a ring-shaped first conical surface 16 is arranged on the main shaft 21 in the range of the connecting shaft sleeve 7, the diameter of the main shaft 21 outside the first conical surface 16 is smaller than that of the main shaft 21 inside the first conical surface 16, an engine sleeve 5 is arranged on the main shaft 21, an annular first conical surface 16 is also arranged on the inner wall of the middle part of the engine sleeve 5, the first conical surface 16 on the inner wall of the engine sleeve 5 is in matched connection with the first conical surface 16 on the main shaft 21, a locking cover 13 is arranged on the main shaft 21 outside the engine sleeve 5, and the locking cover 13 is used for limiting the engine sleeve 5 to axially displace on the main shaft 21; the end part of the connecting shaft sleeve 7 at the inner side of the reaction kettle tank body 18 is provided with a packing gland 2, one end of the packing gland 2 extends into a gap between the connecting shaft sleeve 7 and the main shaft 21, packing 3 is arranged between the packing gland 2 and the main shaft 21 at the position, a bearing 17 is arranged between the connecting shaft sleeve 7 and the machine sleeve 5, a plurality of oil seals 9 are arranged between the machine sleeve 5 at two sides of the bearing 17 and the connecting shaft sleeve 7, and a bearing gland 8 is arranged between the outer end part of the connecting shaft sleeve 7 and the machine sleeve 5.
Wherein the main shaft 21 and the machine sleeve 5 are connected into a whole after assembly, and the conicity of the first conical surface 16 on the main shaft 21 and the machine sleeve 5 is consistent. After the main shaft 21 is matched with the machine sleeve 5, the two first conical surfaces 16 are tightly matched to realize sealing, and the main shaft 21 and the machine sleeve 5 can be kept in a pressed state under the action of the locking cover 13, so that the axial position cannot be changed. The locking cover 13 may be connected to the spindle 21 by a screw thread, and is limited at an axial position of the spindle 21, that is, the locking cover 13 has a nut-shaped structure, and an external screw thread may be disposed at a corresponding position on the spindle 21 to be matched with the locking cover 13. A reasonable clearance may exist between the main shaft 21 and the envelope 5, in addition to the first conical surface 16, for ease of assembly. And the machine sleeve 5 and the connecting shaft sleeve 7 are sealed by adopting a bearing 17, an oil seal 9 and a filler 3. Wherein the bearing 17, the oil seal 9 and the filler 3 are uniformly of the existing structure.
The number of the locking covers 13 can be two, and the two locking covers 13 can be mutually limited after being mutually matched, so that the condition that the locking covers 13 are loosened on the main shaft 21 to influence the displacement of the envelope 5 in the process of vibration and the like is avoided. As for the number of the oil seals 9 and the number of the fillers 3, they may be selected according to actual demands, and are not particularly limited.
The connecting shaft sleeve 7 can be fixed on the reaction kettle tank body 18 through bolts, a bearing 17 is arranged in the connecting shaft sleeve 7, the weight of the main shaft 21 and the stirrer in the reaction kettle tank body 18 is pressed on the bearing 17 through the machine sleeve 5, and the weight is transmitted to the connecting shaft sleeve 7 through the bearing 17.
The inner wall of the outer end part and/or the inner end part of the envelope 5 is/are respectively provided with a second conical surface 15 and a third conical surface 22 which are annular, the inner diameter of each of the second conical surface 15 and the third conical surface 22 is gradually reduced from the end part of the envelope 5, a first conical sleeve 14 is arranged between the envelope 5 and the main shaft 21 corresponding to the second conical surface 15, a second conical sleeve 20 is arranged between the envelope 5 and the main shaft 21 corresponding to the third conical surface 22, the locking cover 13 supports the second conical sleeve 20, a lining 1 is fixed on the main shaft 21 inside the envelope 5, and the lining 1 supports the second conical sleeve 20.
The second conical surface 15 is arranged at the outer end part of the envelope 5, the third conical surface 22 is arranged at the inner end part of the envelope 5, and one of the second conical surface 15 and the second conical surface 15 can be selected for arrangement according to actual requirements, or both of the second conical surface 15 and the second conical surface 15 can be arranged. In this embodiment, the second conical surface 15 and the third conical surface 22 are provided on the envelope 5. The first conical sleeve 14 is arranged in the second conical surface 15, the second conical sleeve 20 is arranged in the third conical surface 22, and the matching between the envelope 5 and the main shaft 21 is tighter and the bearing capacity is stronger through extrusion and reinforcement of the first conical sleeve 14 and the second conical sleeve 20.
The end of the first conical sleeve 14 outside the envelope 5 extends outwards to form an annular projection against which the locking cap 13 abuts.
An inner sealing ring 10 and an outer sealing ring 11 are respectively arranged on the inner side and the outer side of the annular bulge of the first conical sleeve 14, the outer sealing ring 11 is clamped between the locking cover 13 and the annular bulge of the first conical sleeve 14, and the inner sealing ring 10 is clamped between the annular bulge of the first conical sleeve 14 and the end face of the machine sleeve 5.
A backing ring 12 is provided between the locking cap 13 and the annular projection of the first conical sleeve 14, the backing ring 12 acting to transmit torque while isolating frictional drag forces between the locking cap 13 and the first conical sleeve 14 from rotation during locking. The inner seal ring 10 and the outer seal ring 11 are respectively arranged at two sides of the annular bulge of the first conical sleeve 14, so that a certain compression amount can be provided, and the error of the installation position of the first conical sleeve 14 is corrected for the allowance.
An annular projection, against which the bushing 1 abuts, extends outwards at the end of the second conical sleeve 20 outside the envelope 5.
A gasket 19 is provided on both the inner and outer sides of the annular projection of the second conical sleeve 20.
The sealing gaskets 19 are arranged on two sides of the annular bulge of the second conical sleeve 20, so that the sealing performance can be improved, and the allowance correction can be carried out on the position between the machine sleeve 5 and the bushing 1 on the main shaft 21.
The outside of connecting axle sleeve 7 sets up annular step, annular step supports reation kettle jar body 18, is provided with main sealing washer 6 between annular step and the reation kettle jar body 18.
In the above scheme, the oil seals 9 on two sides of the bearing 17 form a closed space for the bearing 17 to store lubricating oil, and an annular cavity is formed among the plurality of oil seals 9 on one side of the bearing 17 and used for medium flow cooling and medium filling sealing, and the innermost oil seal 9 has the function of isolating materials in the reaction kettle. The sealing packing 3 prevents the material in the reaction kettle from flowing along the main shaft 21 between the envelope 5 and the connecting shaft sleeve 7.
The key 4 is provided between the envelope 5 and the main shaft 21, so that the rotational force of the main shaft 21 can be transmitted to the envelope 5, and slipping between the main shaft 21 and the envelope 5 can be avoided.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; may be a mechanical connection; can be directly connected or indirectly connected through an intermediate medium, and can be in interaction relationship with two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In this application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other by way of additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The present utility model is not limited to the preferred embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present utility model.
Claims (7)
1. A reaction kettle mechanical sealing device relates to a reaction kettle tank body and a main shaft, and is characterized in that: the reaction kettle comprises a reaction kettle tank body, a main shaft, a connecting shaft sleeve, a locking cover and a locking cover, wherein the connecting shaft sleeve is arranged on the reaction kettle tank body, the main shaft is arranged in the connecting shaft sleeve and extends into the reaction kettle tank body, the main shaft in the range of the connecting shaft sleeve is provided with an annular first conical surface, the diameter of the main shaft outside the first conical surface is smaller than that of the main shaft inside the first conical surface, the main shaft is provided with an engine cover, the inner wall of the middle part of the engine cover is also provided with an annular first conical surface, the first conical surface on the inner wall of the engine cover is matched and connected with the first conical surface on the main shaft, and the main shaft outside the engine cover is provided with the locking cover which is used for limiting the engine cover to axially displace on the main shaft; the end part of the connecting shaft sleeve on the inner side of the reaction kettle tank body is provided with a packing gland, one end of the packing gland extends into a gap between the connecting shaft sleeve and the main shaft, packing is arranged between the packing gland and the main shaft at the position, a bearing is arranged between the connecting shaft sleeve and the machine sleeve, a plurality of oil seals are arranged between the machine sleeve on two sides of the bearing and the connecting shaft sleeve, and a bearing gland is arranged between the outer end part of the connecting shaft sleeve and the machine sleeve.
2. The reactor machine seal device according to claim 1, characterized in that: the inner wall of the outer side end part and/or the inner side end part of the machine sleeve is/are respectively provided with a second annular conical surface and a third conical surface, the second conical surface and the third conical surface are respectively reduced from the end part of the machine sleeve to the inner diameter gradually, a first conical sleeve is arranged between the machine sleeve and the main shaft at the corresponding position of the second conical surface, a second conical sleeve is arranged between the machine sleeve and the main shaft at the corresponding position of the third conical surface, the locking cover supports the second conical sleeve, a bushing is fixed on the main shaft at the inner side of the machine sleeve, and the bushing supports the second conical sleeve.
3. The reactor machine seal device according to claim 2, characterized in that: the end of the first conical sleeve outside the envelope extends outwards to form an annular projection against which the locking cap abuts.
4. A reactor enclosure as defined in claim 3, wherein: an inner sealing ring and an outer sealing ring are respectively arranged on the inner side and the outer side of the annular bulge of the first conical sleeve, the outer sealing ring is clamped between the locking cover and the annular bulge of the first conical sleeve, and the inner sealing ring is clamped between the annular bulge of the first conical sleeve and the end face of the machine sleeve.
5. The reactor machine seal device according to claim 2, characterized in that: an annular projection is provided at the end of the second conical sleeve outside the envelope and against which the bushing abuts.
6. The reactor machine seal device according to claim 5, wherein: sealing gaskets are arranged on the inner side and the outer side of the annular bulge of the second conical sleeve.
7. The reactor machine seal device according to claim 1, characterized in that: the outside of connecting axle sleeve sets up annular step, annular step supports the reation kettle jar body, is provided with the main sealing washer between annular step and the reation kettle jar body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321845052.XU CN220328588U (en) | 2023-07-13 | 2023-07-13 | Reation kettle machine seals and puts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321845052.XU CN220328588U (en) | 2023-07-13 | 2023-07-13 | Reation kettle machine seals and puts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220328588U true CN220328588U (en) | 2024-01-12 |
Family
ID=89461248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321845052.XU Active CN220328588U (en) | 2023-07-13 | 2023-07-13 | Reation kettle machine seals and puts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220328588U (en) |
-
2023
- 2023-07-13 CN CN202321845052.XU patent/CN220328588U/en active Active
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