CN102635696B - Mechanical sealing device for underwater pelletizing - Google Patents
Mechanical sealing device for underwater pelletizing Download PDFInfo
- Publication number
- CN102635696B CN102635696B CN201210121257.3A CN201210121257A CN102635696B CN 102635696 B CN102635696 B CN 102635696B CN 201210121257 A CN201210121257 A CN 201210121257A CN 102635696 B CN102635696 B CN 102635696B
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- China
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- cutter shaft
- sleeve
- hydroecium
- connection seat
- mechanical seal
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Abstract
The invention discloses a mechanical sealing device for underwater palletizing. The mechanical sealing device comprises a connection seat, a water chamber, a water chamber sleeve, a cutter shaft, a cutter shaft sleeve, a movable ring, a static ring, a bellows spring and a positioning block. The water chamber sleeve is arranged on an inner hole of the water chamber, the movable ring is connected with the cutter shaft sleeve by a first fastening screw, a key groove is arranged in the inner hole of the cutter shaft sleeve near the end face of the right side, a corresponding key groove is also processed in a corresponding position of the cutter shaft, the static ring and the bellows spring as well as a static ring seat at the left side have an integrated structure, the static ring and the connection seat are connected into a whole by a second fastening screw, the connection seat is connected with the water chamber sleeve by a first screw, and the positioning block is temporarily fixed on the connection seat by a second screw. The mechanical sealing device for underwater palletizing is novel in structure, small in volume, reliable in sealing, almost zero in leakage, maintenance-free, convenient for assembly and disassembly, high in friction surface hardness, weak in friction force and low in energy consumption, and the purpose of liquid sealing is achieved.
Description
Technical field
The present invention relates to a kind of mechanical seal device of underwater cutpellet.
Background technique
Mixing extrusion pelleting machine set is one of most important equipment of petrochemical industry ethylene project, and the sealing of underwater cutpellet hydroecium wherein and cutter shaft is one of indispensable key position of mixing extrusion pelleting machine set, its Main Function is in extruding pelletization production process, be filled with in pelletizing hydroecium and there is certain pressure (generally at about 0.4MPa), large discharge (upper hectostere per hour), the process water (demineralized water) of uniform temperature (usually at 50 DEG C about-80 DEG C), and being equipped with in hydroecium many cutterhead of cutting knife in the speed turned with hundreds of per minute in rotation, the effect of this mechanical seal guarantees that the water of hydroecium is not from the outside seepage of cutter shaft of rotating, require that sealing is reliable, easy installation, operation checking maintenance is easy, long service life, the compensation being applicable to cutter shaft is moved, structure in the past in unit: as Fig. 1, adopt packing_seal, namely in the fixing all covers between hydroecium and cutter shaft, multiple tracks packing is housed, come compacting or absent-mindedness packing by the rotation being threaded adapter sleeve at packing rear, and then play the effect of sealing, the degree of tightness that this sealing structure needs device operator to carry out not timing regulates, otherwise the seepage or the tension that there will be water cause the moment of torsion of pelletizing motor excessive and cause electric current to strengthen, and energy consumption is high.
Summary of the invention
The object of this invention is to provide the mechanical seal device that a kind of novel structure, volume are little, sealing reliably, almost can accomplish the underwater cutpellet of " zero " seepage.
The technological scheme that the present invention is adopted for achieving the above object is: a kind of mechanical seal device of underwater cutpellet, comprise connection seat, hydroecium, hydroecium sleeve, cutter shaft, cutter shaft axle sleeve, rotating ring, stationary ring, bellows springs and positioning block, described hydroecium sleeve is arranged on hydroecium endoporus, described rotating ring is connected with cutter shaft axle sleeve by the first fastening screw trip bolt, cutter shaft inner hole of shaft sleeve has keyway near its right end face, described cutter shaft relevant position also processes corresponding keyway, the stationary seat in described stationary ring and bellows springs and left side thereof is structure as a whole, it is an entirety that stationary ring is connected by the second fastening screw trip bolt with connection seat, connection seat is by the first screw and hydroecium sleeve connection, positioning block is temporarily fixed on connection seat by the second screw.
Be provided with an O shape between described connection seat and hydroecium sleeve to enclose.
Be provided with one or multi-channel 2nd O shape between described hydroecium sleeve and hydroecium to enclose.
Adopt the 3rd O shape to enclose between described rotating ring and cutter shaft axle sleeve and carry out static seal.
Be provided with the 4th O shape between described stationary ring and connection seat to enclose.
Described cutter shaft inner hole of shaft sleeve has groove away from keyway place, and described groove place is provided with the 5th O shape circle.
The keyway of described cutter shaft is provided with key.
The mechanical seal device of a kind of underwater cutpellet of the present invention, novel structure, volume is little, and sealing is reliable, and almost can accomplish " zero " seepage, non-maintaining, easy accessibility, rubbing surface hardness is high, and frictional force is little, and energy consumption is extremely low, reaches the object of hydraulic seal; Compared with packing_seal, operator's labor intensity reduces, and energy consumption of electrical machinery reduces, and this device can be widely used in the hydraulic seal with running shaft.
Accompanying drawing explanation
Fig. 1 is the structural representation of prior art packing form seal arrangement.
Fig. 2 is the structural representation of the mechanical seal device of a kind of underwater cutpellet of the present invention.
In figure: 1. the first screw 2. connection seat 3. the one O shape enclose 4. hydroecium sleeve 5. the 2nd O shapes circle 6. first fastening screw trip bolt 7. cutter shaft axle sleeve 8. the 3rd O shapes enclose 9. rotating ring 10. stationary ring 11. bellows springs 12. the 4th O shapes circle 13. second fastening screw trip bolt 14. second screw 15. positioning block 16. the 5th O shapes enclose 17. key 18. cutter shafts.
Embodiment
As shown in Figure 2, the mechanical seal device of underwater cutpellet, comprises the first screw 1, connection seat 2, one O shape circle 3, hydroecium sleeve 4, 2nd O shape circle 5, first fastening screw trip bolt 6, cutter shaft axle sleeve 7, 3rd O shape circle 8, rotating ring 9, stationary ring 10, bellows springs 11, 4th O shape circle 12, second fastening screw trip bolt 13, second screw 14, positioning block 15, 5th O shape circle 16, key 17 and cutter shaft 18, rotating ring and stationary ring adopt high-abrasive material, rubbing surface has mirror finish, rotating ring adopts as leaching antimony carbon graphite, but be not limited thereto, stationary ring adopts tungsten carbide of nickel-base, but be not limited thereto, its compensation of axially wearing and tearing of sealing device, by realizing with stationary ring all-in-one-piece spring, and be bellows springs, guarantee that sealing medium is not revealed, rotating ring 9 is connected with cutter shaft axle sleeve 7 by the first fastening screw trip bolt 6, and adopt the 3rd O shape circle to carry out static seal between the two, cutter shaft axle sleeve 7 endoporus has keyway near its right end face, also corresponding keyway is processed in cutter shaft relevant position, mechanical seal group immediately, key 17 installed by keyway herein, cutter shaft axle sleeve 7 endoporus is away from keyway place, appropriate location has groove, group loads onto the 5th O shape circle 16 immediately, stationary ring 10 passes through to the stationary seat in bellows springs 11 and left side thereof corresponding means such as welding, three makes one, be referred to as bellow type stationary ring, it is with entirety that this stationary ring is connected by the second fastening piece such as fastening screw trip bolt 13 grade of the uniform distribution of circle edge with connection seat 2, therebetween the 4th O shape circle 12 is also placed, connection seat 2 is connected with hydroecium sleeve 4 by the first screw 1, one O shape circle 3 is set therebetween, hydroecium sleeve, 2nd O shape circle 5 is set between 4 and hydroecium, positioning block 15 is temporarily fixed on connection seat 2 by the second screw 14, rotating ring is fixed on the cutter shaft 18 of rotation, fixed form is directly or utilizes cutter shaft axle sleeve indirectly to fix, in order to cutter shaft axle sleeve and the relative static seal of cutter shaft, employing adds one or multi-channel O shape circle, cutter shaft axle sleeve is in order to reach the object with cutter shaft synchronous rotary, adopt the transmitting torques such as key, one or multi-channel seal with O ring is adopted between hydroecium sleeve and hydroecium, in order to reduce the pollution to processing medium, with the part of medium contact, except dynamic and static ring friction pair adopts special material, other adopts stainless steel to make as far as possible, mechanical seal device novel structure of the present invention, volume is little, sealing is reliable, almost can accomplish " zero " seepage, non-maintaining, easy accessibility, rubbing surface hardness is high, frictional force is little, energy consumption is extremely low, reach the object of hydraulic seal, compared with packing_seal, operator's labor intensity reduces, and energy consumption of electrical machinery reduces.
Claims (7)
1. the mechanical seal device of a underwater cutpellet, it is characterized in that: comprise connection seat, hydroecium, hydroecium sleeve, cutter shaft, cutter shaft axle sleeve, rotating ring, stationary ring, bellows springs and positioning block, described hydroecium sleeve is arranged on hydroecium endoporus, described rotating ring is connected with cutter shaft axle sleeve by the first fastening screw trip bolt, cutter shaft inner hole of shaft sleeve has keyway near its right end face, described cutter shaft relevant position also processes corresponding keyway, the stationary seat in described stationary ring and bellows springs and left side thereof is structure as a whole, it is an entirety that stationary ring is connected by the second fastening screw trip bolt with connection seat, connection seat is by the first screw and hydroecium sleeve connection, positioning block is temporarily fixed on connection seat by the second screw.
2. the mechanical seal device of a kind of underwater cutpellet according to claim 1, is characterized in that: be provided with an O shape between described connection seat and hydroecium sleeve and enclose.
3. the mechanical seal device of a kind of underwater cutpellet according to claim 1, is characterized in that: be provided with one or multi-channel 2nd O shape between described hydroecium sleeve and hydroecium and enclose.
4. the mechanical seal device of a kind of underwater cutpellet according to claim 1, is characterized in that: adopt the 3rd O shape to enclose between described rotating ring and cutter shaft axle sleeve and carry out static seal.
5. the mechanical seal device of a kind of underwater cutpellet according to claim 1, is characterized in that: be provided with the 4th O shape between described stationary ring and connection seat and enclose.
6. the mechanical seal device of a kind of underwater cutpellet according to claim 1, is characterized in that: described cutter shaft inner hole of shaft sleeve has groove away from keyway place, and described groove place is provided with the 5th O shape circle.
7. the mechanical seal device of a kind of underwater cutpellet according to claim 1, is characterized in that: the keyway of described cutter shaft is provided with key.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121257.3A CN102635696B (en) | 2012-04-24 | 2012-04-24 | Mechanical sealing device for underwater pelletizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210121257.3A CN102635696B (en) | 2012-04-24 | 2012-04-24 | Mechanical sealing device for underwater pelletizing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102635696A CN102635696A (en) | 2012-08-15 |
| CN102635696B true CN102635696B (en) | 2015-07-22 |
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ID=46620211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210121257.3A Active CN102635696B (en) | 2012-04-24 | 2012-04-24 | Mechanical sealing device for underwater pelletizing |
Country Status (1)
| Country | Link |
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| CN (1) | CN102635696B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723821A (en) * | 2018-12-12 | 2019-05-07 | 大连橡胶塑料机械有限公司 | Large Underwater pelleter cutter shaft mechanical seal |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324048A (en) * | 1991-10-10 | 1994-06-28 | Aes Engineering Limited | Mechanical seals |
| CN1308002A (en) * | 2001-01-19 | 2001-08-15 | 四川明达船用密封有限公司 | Stern shaft seal gland for high speed ship |
| CN101489748A (en) * | 2006-06-16 | 2009-07-22 | G·A·霍尔姆斯 | Underwater pelletizer |
| CN102313021A (en) * | 2011-09-22 | 2012-01-11 | 丹东克隆集团有限责任公司 | Mechanical sealing device for integrated water seal |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19960284A1 (en) * | 1999-12-14 | 2001-08-02 | Zexel Valeo Compressor Europe | Axial mechanical seal, in particular for a compressor of a vehicle air conditioning system |
| JP4724727B2 (en) * | 2008-03-27 | 2011-07-13 | 日本ピラー工業株式会社 | mechanical seal |
-
2012
- 2012-04-24 CN CN201210121257.3A patent/CN102635696B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324048A (en) * | 1991-10-10 | 1994-06-28 | Aes Engineering Limited | Mechanical seals |
| CN1308002A (en) * | 2001-01-19 | 2001-08-15 | 四川明达船用密封有限公司 | Stern shaft seal gland for high speed ship |
| CN101489748A (en) * | 2006-06-16 | 2009-07-22 | G·A·霍尔姆斯 | Underwater pelletizer |
| CN102313021A (en) * | 2011-09-22 | 2012-01-11 | 丹东克隆集团有限责任公司 | Mechanical sealing device for integrated water seal |
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| Publication number | Publication date |
|---|---|
| CN102635696A (en) | 2012-08-15 |
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Effective date of registration: 20170106 Address after: 116036 Ganjingzi Province, Dalian District, Hui Road, No. 18, Patentee after: Dalian Rubber Plastic Machinery Co., Ltd. Address before: 116033 Ganjingzi Province, Dalian District, Hui Road, No. 18, Patentee before: Dalian Rubber & Plastics Machinery Co., Ltd. |