CN204061892U - A kind of high leak tightness polymeric kettle preparing PNBR - Google Patents
A kind of high leak tightness polymeric kettle preparing PNBR Download PDFInfo
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- CN204061892U CN204061892U CN201420365602.2U CN201420365602U CN204061892U CN 204061892 U CN204061892 U CN 204061892U CN 201420365602 U CN201420365602 U CN 201420365602U CN 204061892 U CN204061892 U CN 204061892U
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- rotating ring
- ring
- stationary ring
- polymeric kettle
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Abstract
The utility model discloses a kind of high leak tightness polymeric kettle preparing PNBR, comprise polymeric kettle and run through the stirring shaft be arranged on polymeric kettle, stirring shaft stretches in polymeric kettle for stirring nitrile butadiene rubber medium, outer rotating ring, outer stationary ring, interior stationary ring, interior rotating ring is enclosed within the first sleeve assembly from outside to inside successively, outer stationary ring and interior stationary ring be positioned at gland both sides and respectively with outer rotating ring, interior rotating ring offsets, be provided with the stationary ring frame that is enclosed within the first sleeve assembly in the middle part of gland inwall and outer stationary ring and interior stationary ring are separated, stationary ring frame is connected with gland by Anti-rotary block, interior rotating ring is fixed on the first sleeve assembly by stop pin, first sleeve assembly is provided with the second sleeve assembly of spacing interior rotating ring.The utility model structure is simple, improves the sealing effect of mechanical seal, ensure that the long-term operation of polymeric kettle, avoids promptly to switch polymeric kettle and the fluctuation that causes, ensure that the quality of the nitrile butadiene rubber of the steady and rear operation of production.
Description
Technical field
The utility model relates to polymeric kettle technical field of mechanical, particularly relates to a kind of high leak tightness polymeric kettle preparing PNBR.
Background technique
Polymeric kettle is consersion unit important in nitrile butadiene rubber industry, the butyronitrile device of current chemical rubber factory adopts the emulsion method technology of Zeon Corp to produce, and this butyronitrile device adopts 8 polymerizer equipments, and material enters bottom polymeric kettle, top ejects, continuously online polymerization.
What above-mentioned polymeric kettle shaft sealing adopted is the mechanical seal of CH280-3 type Double End unbalanced type, and sealing medium is mainly butadiene and acrylonitrile, adopts Special seal oil as sealing fluid between two-stage sealing.In normal using process, after six polymeric kettle working orders good, can normal life cycle be ensured.But under identical circumstances, before two polymeric kettles leak frequent, substantially monthly leak 1 time, have a strong impact on and produce and cause waste normally.
Disintegrate at the polymeric kettle revealed its mechanical seal, find that O-ring seal all has in various degree swelling, the swelling amplitude of side medium is very large.Because the concentration of front 2 polymeric kettle Raws (butadiene, acrylonitrile and emulsifier etc.) is higher, for the material of polymerization first reaction, react very violent, cause the Environmental Conditions of cushion rubber comparatively severe, if the selection of cushion rubber is improper, then bottom side medium, cushion rubber directly contacts with material, is easy to swelling.Bottom side medium cushion rubber swelling after, material goes upward to the pollution that first layer Seal cage causes sealing oil, thus cause the cushion rubber of rotating ring swelling, the O-ring seal of rotating ring is embedded in seal groove, once cushion rubber is swelling, the expansive force produced directly acts on relatively thin rotating ring (graphite) junction surface, causes the total failure of the cracked of rotating ring face and machine envelope.
Model utility content
In order to solve the technical problem existed in background technique, the utility model proposes a kind of high leak tightness polymeric kettle preparing PNBR, improve the sealing effect of mechanical seal, ensure that the long-term operation of polymeric kettle, avoid and urgent switch polymeric kettle and the fluctuation that causes, ensure that the quality of the nitrile butadiene rubber of the steady and rear operation of production.
A kind of high leak tightness polymeric kettle preparing PNBR that the utility model proposes, comprise polymeric kettle and run through the stirring shaft be arranged on polymeric kettle, stirring shaft stretches in polymeric kettle for stirring nitrile butadiene rubber medium, stirring shaft is set with the first sleeve assembly, gland is set with outside first sleeve assembly, outer rotating ring, interior rotating ring, outer stationary ring and interior stationary ring, outer rotating ring, outer stationary ring, interior stationary ring, interior rotating ring is enclosed within the first sleeve assembly from outside to inside successively, outer stationary ring and interior stationary ring be positioned at gland both sides and respectively with outer rotating ring, interior rotating ring offsets, and outer stationary ring and interior stationary ring are all connected with gland by stationary ring O shape circle, be provided with the stationary ring frame that is enclosed within the first sleeve assembly in the middle part of gland inwall and outer stationary ring and interior stationary ring are separated, outer stationary ring is all connected with stationary ring frame with interior stationary ring, stationary ring frame is connected with gland by Anti-rotary block, interior rotating ring is fixed on the first sleeve assembly by stop pin, first sleeve assembly is provided with the second sleeve assembly of spacing interior rotating ring, outer rotating ring is offseted by spring seat and the throw-out collar assembly be enclosed within the first sleeve assembly, be provided with spring seat O shape between spring seat and throw-out collar assembly to enclose, gland is fixed on polymeric kettle by limiting stopper by throw-out collar assembly, gland ring is provided with between polymeric kettle and gland, outer rotating ring is provided with the outer rotating ring O shape be connected with throw-out collar assembly and encloses, interior rotating ring be provided be connected with the second sleeve assembly first in rotating ring O shape to enclose and in second, rotating ring O shape is enclosed, in first, the sectional area of rotating ring O shape circle is greater than the sectional area of rotating ring O shape circle in second, and in first, rotating ring O shape encloses the one end near gland.
Preferably, in the stationary ring O shape circle, first on interior stationary ring, rotating ring O shape circle is coated O shape circle, and in second, rotating ring O shape circle is fluororubber O shape circle.
Preferably, the second sleeve assembly is connected with the first sleeve assembly by spring, and the second sleeve assembly is connected with stirring shaft by axle sleeve O shape circle.
Preferably, above-mentioned axle sleeve O shape circle is coated O shape circle.
Preferably, throw-out collar assembly is fixed on the first sleeve assembly by fastening screw trip bolt, and limiting stopper is fixed on throw-out collar assembly by stop screw, is provided with the transmission screw for transmission throw-out collar component movement between the first sleeve assembly and throw-out collar assembly.
Preferably, limiting stopper is provided with the boss be connected with gland, and gland is provided with the annular groove matched with the boss on limiting stopper.
Preferably, gland is provided with the Seal cage injecting sealing oil, and Seal cage is corresponding with Anti-rotary block to be arranged.
The utility model adopts double seals, i.e. side medium and atmospheric side, centre is full of sealing oil, not leaking of medium and not entering of outside medium is ensured by the control of pressure, two rubber sealing structure is adjusted to rotating ring in the side medium of polymeric kettle side, be respectively rotating ring O shape in nitrile butadiene rubber to enclose and rotating ring O shape circle in fluorine rubber, in nitrile butadiene rubber, rotating ring O shape circle is near gland side, in fluorine rubber, rotating ring O shape circle is near side medium in order to separate material and bag fluorine cushion rubber, prevents cushion rubber from producing swelling; The better coated O shape circle of corrosivity all be have employed to the axle sleeve O shape of side medium circle and stationary ring O shape circle, import fluorine cushion rubber is adopted to the dynamic and static ring O shape circle of atmospheric side.The utility model structure is simple, improves the sealing effect of mechanical seal, ensure that the long-term operation of polymeric kettle, avoids promptly to switch polymeric kettle and the fluctuation that causes, ensure that the quality of the nitrile butadiene rubber of the steady and rear operation of production.
Accompanying drawing explanation
Fig. 1 is a kind of cross-sectional view preparing the high leak tightness polymeric kettle of PNBR that the utility model proposes.
Embodiment
As shown in Figure 1, Fig. 1 is a kind of cross-sectional view preparing the high leak tightness polymeric kettle of PNBR that the utility model proposes.
With reference to Fig. 1, a kind of high leak tightness polymeric kettle preparing PNBR that the utility model proposes, comprise polymeric kettle and run through the stirring shaft 1 be arranged on polymeric kettle, stirring shaft 1 stretches in polymeric kettle for stirring nitrile butadiene rubber medium, stirring shaft 1 is set with the first sleeve assembly 2, gland 3 is set with outside first sleeve assembly 2, outer rotating ring 4, interior rotating ring 5, outer stationary ring 6 and interior stationary ring 7, outer rotating ring 4, outer stationary ring 6, interior stationary ring 7, interior rotating ring 5 is enclosed within the first sleeve assembly 2 from outside to inside successively, outer stationary ring 6 and interior stationary ring 7 be positioned at gland 3 both sides and respectively with outer rotating ring 4, interior rotating ring 5 offsets, and outer stationary ring 6 and interior stationary ring 7 are all connected with gland 3 by stationary ring O shape circle, be provided with the stationary ring frame 8 that is enclosed within the first sleeve assembly 2 in the middle part of gland 3 inwall and outer stationary ring 6 and interior stationary ring 7 are separated, outer stationary ring 6 is all connected with stationary ring frame 8 with interior stationary ring 7, stationary ring frame 8 is connected with gland 2 by Anti-rotary block 9, interior rotating ring 5 is fixed on the first sleeve assembly 2 by stop pin 10, first sleeve assembly 2 is provided with the second sleeve assembly 11 of spacing interior rotating ring 5, second sleeve assembly 11 is connected with the first sleeve assembly 2 by spring, second sleeve assembly 11 is connected with stirring shaft 1 by axle sleeve O shape circle, outer rotating ring 4 is offseted by spring seat and the throw-out collar assembly 12 be enclosed within the first sleeve assembly 2, be provided with spring seat O shape between spring seat and throw-out collar assembly 12 to enclose, gland 2 is fixed on polymeric kettle by limiting stopper 13 by throw-out collar assembly 12, is provided with gland ring between polymeric kettle and gland 2, throw-out collar assembly 12 is fixed on the first sleeve assembly 2 by fastening screw trip bolt, and limiting stopper 13 is fixed on throw-out collar assembly 12 by stop screw, is provided with the transmission screw for the motion of transmission throw-out collar assembly 12 between the first sleeve assembly 2 and throw-out collar assembly 12, limiting stopper 13 is provided with the boss be connected with gland 2, and gland 2 is provided with the annular groove matched with the boss on limiting stopper 13, gland 2 is provided with the Seal cage 16 injecting sealing oil, and Seal cage 16 is corresponding with Anti-rotary block 9 to be arranged.
Outer rotating ring 4 is provided with the outer rotating ring O shape be connected with throw-out collar assembly 12 and encloses, interior rotating ring 5 be provided be connected with the second sleeve assembly 11 first in rotating ring O shape enclose rotating ring O shape in 14 and second and enclose 15, in first, the sectional area of rotating ring O shape circle 14 is greater than the sectional area of rotating ring O shape circle 15 in second, and in first, rotating ring O shape encloses 14 near one end of gland.In a particular embodiment, in first, rotating ring O shape circle 14 is coated O shape circle, and in second, rotating ring O shape circle 15 is fluororubber O shape circle; Fluororubber O shape circle, in order to material and bag fluorine cushion rubber to be kept apart, prevents cushion rubber from producing swelling, ensure that and anticorrosionly in turn ensure that floating performance.It is combine by covering outside the inner core of fluorine rubber and relatively thin perfluoroethylene-propylene that the utility model adopts coated O shape to enclose, this rubber has excellent sealability and elasticity, both the oil resistance having solved fluorine rubber is poor, in turn ensure that the sealability of cushion rubber.
The above; be only the utility model preferably embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; be equal to according to the technical solution of the utility model and model utility design thereof and replace or change, all should be encompassed within protection domain of the present utility model.
Claims (6)
1. prepare the high leak tightness polymeric kettle of PNBR for one kind, it is characterized in that, comprise polymeric kettle and run through the stirring shaft (1) be arranged on polymeric kettle, stirring shaft (1) stretches in polymeric kettle for stirring nitrile butadiene rubber medium, at upper suit first sleeve assembly (2) of stirring shaft (1), gland (3) is set with outside first sleeve assembly (2), outer rotating ring (4), interior rotating ring (5), outer stationary ring (6) and interior stationary ring (7), outer rotating ring (4), outer stationary ring (6), interior stationary ring (7), interior rotating ring (5) is enclosed within the first sleeve assembly (2) from outside to inside successively, outer stationary ring (6) and interior stationary ring (7) be positioned at gland (3) both sides and respectively with outer rotating ring (4), interior rotating ring (5) offsets, and outer stationary ring (6) and interior stationary ring (7) are all connected with gland (3) by stationary ring O shape circle, be provided with the stationary ring frame (8) that is enclosed within the first sleeve assembly (2) in the middle part of gland (3) inwall and outer stationary ring (6) and interior stationary ring (7) are separated, outer stationary ring (6) is all connected with stationary ring frame (8) with interior stationary ring (7), stationary ring frame (8) is connected with gland (3) by Anti-rotary block (9), interior rotating ring (5) is fixed on the first sleeve assembly (2) by stop pin (10), first sleeve assembly (2) is provided with second sleeve assembly (11) of spacing interior rotating ring (5), outer rotating ring (4) is offseted by spring seat and the throw-out collar assembly (12) be enclosed within the first sleeve assembly (2), be provided with spring seat O shape between spring seat and throw-out collar assembly (12) to enclose, gland (3) is fixed on polymeric kettle by limiting stopper (13) by throw-out collar assembly (12), gland ring is provided with between polymeric kettle and gland (3), outer rotating ring (4) is provided with the outer rotating ring O shape be connected with throw-out collar assembly (12) and encloses, interior rotating ring (5) be provided be connected with the second sleeve assembly (11) first in rotating ring O shape enclose rotating ring O shape in (14) and second and enclose (15), in first, the sectional area of rotating ring O shape circle (14) is greater than the sectional area of rotating ring O shape circle (15) in second, and in first, rotating ring O shape encloses (14) one end near gland (3).
2. the high leak tightness polymeric kettle preparing PNBR according to claim 1, it is characterized in that, in stationary ring O shape circle, first on interior stationary ring, rotating ring O shape circle (14) is coated O shape circle, and in second, rotating ring O shape circle (15) is fluororubber O shape circle.
3. the high leak tightness polymeric kettle preparing PNBR according to claim 1, is characterized in that, the second sleeve assembly (11) is connected with stirring shaft (1) by axle sleeve O shape circle.
4. the high leak tightness polymeric kettle preparing PNBR according to claim 1, it is characterized in that, throw-out collar assembly (12) is fixed on the first sleeve assembly (2) by fastening screw trip bolt, limiting stopper (13) is fixed on throw-out collar assembly (12) by stop screw, is provided with the transmission screw moved for transmission throw-out collar assembly (12) between the first sleeve assembly (2) and throw-out collar assembly (12).
5. the high leak tightness polymeric kettle preparing PNBR according to claim 1, it is characterized in that, limiting stopper (13) is provided with the boss be connected with gland (3), and gland (3) is provided with the annular groove matched with the boss on limiting stopper (13).
6. the high leak tightness polymeric kettle preparing PNBR according to claim 1, it is characterized in that, gland (3) is provided with the Seal cage (16) injecting sealing oil, and Seal cage (16) is corresponding with Anti-rotary block (9) to be arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365602.2U CN204061892U (en) | 2014-07-02 | 2014-07-02 | A kind of high leak tightness polymeric kettle preparing PNBR |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420365602.2U CN204061892U (en) | 2014-07-02 | 2014-07-02 | A kind of high leak tightness polymeric kettle preparing PNBR |
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| CN204061892U true CN204061892U (en) | 2014-12-31 |
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| CN201420365602.2U Expired - Fee Related CN204061892U (en) | 2014-07-02 | 2014-07-02 | A kind of high leak tightness polymeric kettle preparing PNBR |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197004A (en) * | 2020-10-12 | 2021-01-08 | 江门市新会区天府密封科技有限公司 | Prevent mechanical seal subassembly of leakage |
-
2014
- 2014-07-02 CN CN201420365602.2U patent/CN204061892U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197004A (en) * | 2020-10-12 | 2021-01-08 | 江门市新会区天府密封科技有限公司 | Prevent mechanical seal subassembly of leakage |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160906 Address after: 239300 Tianchang, Anhui Province, Pearl Lake Road, No. 88, No. Patentee after: Anhui Wandong Chemical Co., Ltd. Address before: 239300 Tianchang, Anhui Province, Pearl Lake Road, No. 88, No. Patentee before: SHENDONG TECHNOLOGY CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20170702 |