CN102635696A - Mechanical sealing device for underwater pelletizing - Google Patents
Mechanical sealing device for underwater pelletizing Download PDFInfo
- Publication number
- CN102635696A CN102635696A CN2012101212573A CN201210121257A CN102635696A CN 102635696 A CN102635696 A CN 102635696A CN 2012101212573 A CN2012101212573 A CN 2012101212573A CN 201210121257 A CN201210121257 A CN 201210121257A CN 102635696 A CN102635696 A CN 102635696A
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- China
- Prior art keywords
- cutter shaft
- hydroecium
- sleeve
- connection seat
- mechanical seal
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- Sealing Devices (AREA)
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 effect is in the extruding pelletization production process; Be full of the process water (demineralized water) of have certain pressure (generally about 0.4MPa), big flow (per hour going up hectostere), uniform temperature (usually about 50 ℃-80 ℃) in the pelletizing hydroecium; Rotating the cutterhead of cutting knife in the speed of changeing and being equipped with in the hydroecium is many with the per minute hundreds of; The effect of this mechanical seal is to guarantee the not outside seepage of cutter shaft from rotating of the water of hydroecium, require sealing reliable, be prone to install, the operation checking maintenance is easy, long service life, the compensation that is fit to cutter shaft move; Structure in the unit in the past: like Fig. 1, adopt packing_seal, promptly the fixing week between hydroecium and cutter shaft is in the cover; The multiple tracks packing is housed; The rotation that is threaded adapter sleeve through the packing rear comes compacting or absent-mindedness packing, and then plays the effect of sealing, and the degree of tightness that this sealing structure needs device operator to carry out not timing is regulated; Otherwise it is excessive and cause electric current to strengthen the seepage of water or moment of torsion that tension causes the pelletizing motor to occur, and energy consumption is high.
Summary of the invention
The purpose of this invention is to provide the mechanical seal device that a kind of novel structure, volume are little, sealing reliably, almost can be accomplished the underwater cutpellet of " zero " seepage.
The present invention for realizing the technological scheme that above-mentioned purpose adopted 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; Said hydroecium sleeve is arranged on the hydroecium endoporus; Said rotating ring is connected with the cutter shaft axle sleeve through first fastening screw trip bolt, and cutter shaft axle sleeve endoporus has keyway near its right end face, and said cutter shaft relevant position also processes corresponding keyway; The stationary seat in said stationary ring and bellows springs and left side thereof is structure as a whole; Stationary ring and connection seat are connected to an integral body through second fastening screw trip bolt, and connection seat is connected with the hydroecium sleeve through first screw, and positioning block is temporarily fixed on the connection seat through second screw.
Be provided with O shape circle between said connection seat and the hydroecium sleeve.
Said hydroecium sleeve is provided with between hydroecium or multiple tracks the 2nd O shape circle.
Adopt the 3rd O shape circle to carry out static seal between said rotating ring and the cutter shaft axle sleeve.
Be provided with the 4th O shape circle between said stationary ring and the connection seat.
Said cutter shaft axle sleeve endoporus has groove away from the keyway place, and said groove place is provided with the 5th O shape circle.
On the keyway of said cutter shaft key is installed.
The mechanical seal device of a kind of underwater cutpellet of the present invention, novel structure, volume is little, and sealing is reliable, 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 purpose of liquid seal; Compare with packing_seal, operator's labor intensity reduces, and energy consumption of electrical machinery reduces, and this device can be widely used in having the liquid seal of running shaft.
Description of drawings
Fig. 1 is the structural representation of existing technology 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.
Among the figure: 1. first screw, 2. connection seats 3. an O shape is enclosed 4. hydroecium sleeves 5. the 2nd O shape and is enclosed 6. first fastening screw trip bolts, 7. cutter shaft axle sleeves 8. the 3rd O shape and enclose 9. rotating rings, 10. stationary rings, 11. bellows springs 12. the 4th O shape and enclose 13. second fastening screw trip bolts, 14. second screws, 15. positioning blocks 16. the 5th O shape and enclose 17. keys, 18. cutter shafts.
Embodiment
As shown in Figure 2, the mechanical seal device of underwater cutpellet comprises first screw 1, connection seat 2, O shape circle 3, hydroecium sleeve 4, the 2nd O shape circle 5, first fastening screw trip bolt 6, cutter shaft axle sleeve 7, the 3rd O shape circle 8, rotating ring 9, stationary ring 10, bellows springs 11, the 4th O shape circle 12, second fastening screw trip bolt 13, second screw 14, positioning block 15, the 5th O shape circle 16, key 17 and cutter shaft 18; Rotating ring and stationary ring adopt high-abrasive material, and rubbing surface has mirror finish, and rotating ring adopts as soaking the antimony carbon graphite; But be not limited thereto, stationary ring adopts tungsten carbide of nickel-base, but is not limited thereto; Its axially compensation of wearing and tearing of sealing device is through realizing with stationary ring all-in-one-piece spring, and is bellows springs; Guarantee not leakage of sealing medium, rotating ring 9 is connected with cutter shaft axle sleeve 7 through first fastening screw trip bolt 6, and adopts the 3rd O shape circle to carry out static seal between the two; Cutter shaft axle sleeve 7 endoporus have keyway near its right end face, also process corresponding keyway in the cutter shaft relevant position, and the mechanical seal group immediately; Keyway is installed key 17 here, and cutter shaft axle sleeve 7 endoporus are away from the keyway place, and the appropriate location has groove; Group is loaded onto the 5th O shape circle 16 immediately; Stationary ring 10 passes through corresponding means such as welding with the stationary seat in bellows springs 11 and left side thereof, and the three processes one, is referred to as the bellow type stationary ring; This stationary ring and connection seat 2 are connected to integral body through the fastening pieces such as second fastening screw trip bolt 13 that circle edge is uniformly distributed with distribution, also place the 4th O shape circle 12 between the two, and connection seat 2 is connected with hydroecium sleeve 4 through first screw 1, and O shape circle 3 is set therebetween; The hydroecium sleeve, 4 and hydroecium between the 2nd O shape circle 5 is set, positioning block 15 is temporarily fixed on the connection seat 2 through second screw 14, rotating ring is fixed on the cutter shaft 18 of rotation; Fixed form is direct or utilizes cutter shaft axle sleeve indirect securement, for the relative static seal of cutter shaft axle sleeve and cutter shaft, adopts to add together or multiple tracks O shape circle, and the cutter shaft axle sleeve is in order to reach and the synchronous purpose of rotating of cutter shaft; Adopt transmitting torques such as key, the hydroecium sleeve adopts with between hydroecium or the multiple tracks seal with O ring, in order to reduce the pollution to processing medium; The part that contacts with medium, except the 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, and sealing is reliable; Almost can accomplish " zero " seepage, non-maintaining, easy accessibility, rubbing surface hardness is high; Frictional force is little, and energy consumption is extremely low, reaches the purpose of liquid seal; Compare 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; Said hydroecium sleeve is arranged on the hydroecium endoporus; Said rotating ring is connected with the cutter shaft axle sleeve through first fastening screw trip bolt, and cutter shaft axle sleeve endoporus has keyway near its right end face, and said cutter shaft relevant position also processes corresponding keyway; The stationary seat in said stationary ring and bellows springs and left side thereof is structure as a whole; Stationary ring and connection seat are connected to an integral body through second fastening screw trip bolt, and connection seat is connected with the hydroecium sleeve through first screw, and positioning block is temporarily fixed on the connection seat through second screw.
2. the mechanical seal device of a kind of underwater cutpellet according to claim 1 is characterized in that: be provided with O shape circle between said connection seat and the hydroecium sleeve.
3. the mechanical seal device of a kind of underwater cutpellet according to claim 1 is characterized in that: said hydroecium sleeve is provided with between hydroecium or multiple tracks the 2nd O shape circle.
4. the mechanical seal device of a kind of underwater cutpellet according to claim 1 is characterized in that: adopt the 3rd O shape circle to carry out static seal between said rotating ring and the cutter shaft axle sleeve.
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 circle between said stationary ring and the connection seat.
6. the mechanical seal device of a kind of underwater cutpellet according to claim 1, it is characterized in that: said cutter shaft axle sleeve endoporus has groove away from the keyway place, and said 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: on the keyway of said cutter shaft key is installed.
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 true CN102635696A (en) | 2012-08-15 |
| CN102635696B CN102635696B (en) | 2015-07-22 |
Family
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 |
|---|---|
| CN (1) | CN102635696B (en) |
Cited By (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 (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324048A (en) * | 1991-10-10 | 1994-06-28 | Aes Engineering Limited | Mechanical seals |
| WO2001044700A1 (en) * | 1999-12-14 | 2001-06-21 | Zexel Valeo Compressor Europe Gmbh | Axially sliding radial sealing ring, especially for a compressor of an automobile air conditioning system |
| 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 |
| JP2009236207A (en) * | 2008-03-27 | 2009-10-15 | Nippon Pillar Packing Co Ltd | Mechanical seal |
| 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 |
-
2012
- 2012-04-24 CN CN201210121257.3A patent/CN102635696B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5324048A (en) * | 1991-10-10 | 1994-06-28 | Aes Engineering Limited | Mechanical seals |
| WO2001044700A1 (en) * | 1999-12-14 | 2001-06-21 | Zexel Valeo Compressor Europe Gmbh | Axially sliding radial sealing ring, especially for a compressor of an automobile air conditioning system |
| 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 |
| JP2009236207A (en) * | 2008-03-27 | 2009-10-15 | Nippon Pillar Packing Co Ltd | Mechanical seal |
| 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 |
Cited By (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102635696B (en) | 2015-07-22 |
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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. |