CN2711469Y - Mechanical seal device for light hydrocarbon pump - Google Patents
Mechanical seal device for light hydrocarbon pump Download PDFInfo
- Publication number
- CN2711469Y CN2711469Y CN 200420067533 CN200420067533U CN2711469Y CN 2711469 Y CN2711469 Y CN 2711469Y CN 200420067533 CN200420067533 CN 200420067533 CN 200420067533 U CN200420067533 U CN 200420067533U CN 2711469 Y CN2711469 Y CN 2711469Y
- Authority
- CN
- China
- Prior art keywords
- ring
- seal
- mechanical seal
- light hydrocarbon
- inwall
- 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.)
- Expired - Lifetime
Links
Landscapes
- Mechanical Sealing (AREA)
Abstract
The utility model belongs to an improvement of a mechanical seal device for the liquid state light hydrocarbon pump used in the field of petrochemical industry, in particular to a mechanical sealing device for the light hydrocarbon pump, comprising an axle sleeve fixedly arranged on a main axle and a seal cavity arranged on a supporting base. The seal cavity is composed of an internal press cap and an external press cap. An auxiliary mechanical seal friction accessory unit and a host mechanical seal accessory unit are arranged on the axle sleeve in the seal cavity. A flow guiding sleeve is arranged on the internal wall of the press cap according to the ladder-shaped internal wall of the internal press cap. The flow guiding sleeve divides the seal cavity into a primary seal cavity and a secondary seal cavity. A moving ring in the secondary seal cavity is fixedly provided with a pump efficiency ring. The acting surface of the pump efficiency ring is matched with the internal wall of the flow guiding sleeve. Distributor rings with through holes are uniformly distributed on a ring groove of the internal wall with a sealing liquid inlet on the exterior press cap. The utility model can adequately cool and lubricate a mechanical seal friction accessory unit and make the sealing oil smoothly circulated. The reliability and the service life of the mechanical seal are improved, the normal work of the mechanical seal is guaranteed, and the work efficiency of the light hydrocarbon pump is enhanced.
Description
Affiliated technical field
The utility model belongs to the improvement, particularly light hydrocarbon pump mechanical seal device of the liquefied hydrocarbon pump mechanical sealing device of petrochemical industry use.
Background technique
The mechanical seal leakage rate of the liquefied hydrocarbon pump that uses at petrochemical industry is high, because that the lighter hydrocarbons medium has is inflammable, explosive, boiling point is low, poor lubricity, permeability is strong and characteristic such as liquefaction pressure height, to the mechanical seal design with use and cause very big difficulty.It is that design has pump efficiency ring in light hydrocarbon pump that a kind of seal arrangement is arranged.But there are problems such as right dry friction of mechanical seal friction pair group or half-dried friction and sealing liquid do not circulate after using.Also have pump efficiency ring is used with the water conservancy diversion cover, though solved the circulatory problems of sealing liquid, but do not solve the dry friction or the half-dried friction of friction pair group, and with ear-piercing noise, influence whole working environment, the mechanical seal of conventional design no matter be sealing liquid import or flushing certainly, all can not be cooled off the friction pair group uniformly or lubricate.Because the friction pair group can produce localized hyperthermia, thereby make the friction pair group to cisco unity malfunction when working, produce dry friction or half-dried friction, therefore cause the premature failure of mechanical seal.
Summary of the invention
The purpose of this utility model is to provide a kind of light hydrocarbon pump mechanical seal device, can cool off fully and the friction pair group of lubricating mechanical sealing right, sealing liquid is circulated swimmingly, thereby improve the reliability and the working life of mechanical seal, ensure the proper functioning of mechanical seal, improve the working efficiency of light hydrocarbon pump.
The purpose of this utility model is achieved in that a kind of light hydrocarbon pump mechanical seal device, comprise the axle sleeve that is fixedly mounted on the main shaft and by being installed in the internal gland on the bearing and the Seal cage of outer gland formation, secondary terminal tool sealing friction pair group and main terminal tool sealing friction pair group are being set on the axle sleeve in Seal cage, on the inwall of internal gland, be installed with and the corresponding water conservancy diversion cover of the stepped shaft inwall of internal gland, the water conservancy diversion cover is divided into main seal cavity and auxiliary seal cavity with Seal cage, fixedly mounting pump efficiency ring on the rotating ring in auxiliary seal cavity, the inwall of the working surface of pump efficiency ring and water conservancy diversion cover matches, and gland has on the annular groove of inwall of sealing liquid import the distribution loop that is evenly equipped with through hole is installed outside.
Be installed with on the inwall of internal gland of the present utility model and the corresponding water conservancy diversion cover of the stepped shaft inwall of internal gland, the water conservancy diversion cover is divided into main seal cavity and auxiliary seal cavity with Seal cage, sealing liquid enters cavity through the uniform through hole of distribution loop from liquid entering hole, making sealing liquid be distributed on auxiliary seal cavity from a plurality of directions is lubricated secondary terminal tool sealing friction pair group and cools off, working surface by pump efficiency ring is transported to main terminal tool sealing friction pair group from auxiliary seal cavity along the water conservancy diversion cover with sealing liquid again, make main terminal tool sealing friction pair group obtain cooling and lubricated, discharge from the sealing liquid outlet then, make the smooth and easy circulation of sealing liquid.Because the effect by water conservancy diversion cover and pump efficiency ring is transported to sealing liquid on the friction pair face of main terminal tool sealing, reduces the temperature that friction pair produces, thereby has reduced by the possibility of envelope medium gasification, avoided the friction pair group to producing dry friction or half-dried friction.Guaranteed main terminal tool friction pair group proper functioning.Thereby improved the reliability and the working life of mechanical seal, ensured the proper functioning of mechanical sealing system, improved the working efficiency of lighter hydrocarbons.
Description of drawings
Fig. 1 is a sectional structure schematic representation of the present utility model
Fig. 2 is the main TV structure schematic representation of pump efficiency ring
Fig. 3 is the side-looking structural representation of Fig. 2
Embodiment
Below in conjunction with accompanying drawing the utility model is further described, the light hydrocarbon pump mechanical seal device, as shown in Figure 1, comprise the axle sleeve 1 that is fixedly mounted on the main shaft and by being installed in the internal gland 4 on the bearing 11 and the Seal cage of outer gland 3 formations, secondary terminal tool seal friction group and main terminal tool sealing friction pair group are being set on the axle sleeve 1 in Seal cage, on the inwall of internal gland 4, fixedly mounting and the corresponding water conservancy diversion cover 6 of the stepped shaft inwall of internal gland 4 by snap ring, sealing liquid outlet 8 is being set on internal gland 4, internal gland 4 has on the inwall of sealing liquid outlet 8 circular groove is being set, water conservancy diversion cover 6 and internal gland 4 have uniform axial diversion groove on the outer wall that the inwall of circular groove matches, and make the sealing liquid after cooling and the lubricated main terminal tool sealing friction pair can be swimmingly from sealing liquid outlet 8 discharges.Water conservancy diversion cover 6 is divided into main seal cavity and auxiliary seal cavity with Seal cage, is fixedly mounting pump efficiency ring 7 on the rotating ring 10 in auxiliary seal cavity, and the working surface of pump efficiency ring 7 and water conservancy diversion overlap 6 inwall and match.As Fig. 2, shown in Figure 3, axial diversion spiral chute 13 is being set on the working surface of pump efficiency ring 7.Pump efficiency ring 7 is in the process that follow-up ring 10 turns round together, and the axial diversion helix that is provided with on pump efficiency ring 7 working surfaces plays the effect of pressurized delivered sealing liquid on the friction pair face of main terminal tool sealing to sealing liquid.On the gland 3 sealing liquid import 5 is being set outside, sealing liquid import 5 places of gland 3 inwalls are being provided with annular groove outside, and the distribution loop 2 of uniform through hole is installed on annular groove.Between the rotating ring 10 of secondary terminal tool sealing friction pair group and stationary ring 9, welded metal bellow 12 is installed, between the rotating ring 10 of main terminal tool sealing friction pair group and stationary ring 9, welded metal bellow 12 is installed, welded metal bellow 12 is that cross section is the elastic compression circle that tortuous continuously shell fragment constitutes, welded metal bellow 12 1 ends are fixed on the rotating ring 10, in the pressure ring that its other end connects seal ring is installed, seal ring matches with stationary ring 9.
Claims (5)
1. light hydrocarbon pump mechanical seal device, comprise the axle sleeve (1) that is fixedly mounted on the main shaft and by being installed in the Seal cage that internal gland (4) on the bearing (11) and outer gland (3) constitute, secondary terminal tool sealing friction pair group and main terminal tool sealing friction pair group are being set on the axle sleeve in Seal cage (1), it is characterized in that on the inwall of internal gland (4), being installed with the corresponding water conservancy diversion cover of stepped shaft inwall (6) with internal gland (4), water conservancy diversion cover (6) is divided into main seal cavity and auxiliary seal cavity with Seal cage, fixedly mounting pump efficiency ring (7) on the rotating ring in auxiliary seal cavity (10), the working surface of pump efficiency ring (7) matches with the inwall of water conservancy diversion cover (6), and gland (3) has on the annular groove of inwall of sealing liquid import (5) distribution loop (2) that is evenly equipped with through hole is installed outside.
2. light hydrocarbon pump mechanical seal device according to claim 1, it is characterized in that on internal gland (4), being provided with sealing liquid outlet (8), internal gland (4) has on the inwall of sealing liquid outlet (8) circular groove is being set, and water conservancy diversion cover (6) and internal gland (4) have uniform axial diversion groove on the outer wall that the inwall of circular groove cooperatively interacts.
3. light hydrocarbon pump mechanical seal device according to claim 1 is characterized in that on the working surface of pump efficiency ring (7) axial diversion spiral chute (13) being set.
4. light hydrocarbon pump mechanical seal device according to claim 1 is characterized in that between the rotating ring (10) of main terminal tool sealing friction pair group and the stationary ring (9) and between the rotating ring (10) of secondary terminal tool sealing friction pair group and stationary ring (9) welded metal bellow (12) being installed respectively.
5. light hydrocarbon pump mechanical seal device according to claim 1, it is characterized in that welded metal bellow (12) is that cross section is the elastic compression circle that tortuous continuously shell fragment constitutes, welded metal bellow (12) one ends are fixed on the rotating ring (10), in the pressure ring that its other end connects seal ring is installed, seal ring matches with stationary ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420067533 CN2711469Y (en) | 2004-06-11 | 2004-06-11 | Mechanical seal device for light hydrocarbon pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420067533 CN2711469Y (en) | 2004-06-11 | 2004-06-11 | Mechanical seal device for light hydrocarbon pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2711469Y true CN2711469Y (en) | 2005-07-20 |
Family
ID=36192573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420067533 Expired - Lifetime CN2711469Y (en) | 2004-06-11 | 2004-06-11 | Mechanical seal device for light hydrocarbon pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2711469Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907105A (en) * | 2009-06-08 | 2010-12-08 | 胜达因公司 | The reverse pumping tandem process seal configuration |
| CN101652589B (en) * | 2007-04-12 | 2012-06-13 | 伊格尔工业股份有限公司 | Mechanical seal device |
| CN102619988A (en) * | 2012-03-07 | 2012-08-01 | 大连华阳光大密封有限公司 | Welded metal bellows seal with moving ring and stationary ring being interchangeable |
| CN102644743A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | High temperature oil flushing baffling sleeve structure |
| CN102644619A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | Novel impeller type high-efficiency pump ring structure |
| CN102705516A (en) * | 2011-12-29 | 2012-10-03 | 大连华阳光大密封有限公司 | High-efficiency vane centrifugal pump efficiency ring |
| CN102966739A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Bellows mechanical sealing device with self-circulation function |
| CN103574039A (en) * | 2012-07-18 | 2014-02-12 | 苏州立德泵技术研究院有限公司 | Embedded double-sealing device without sealing cover |
| CN104100718A (en) * | 2014-07-03 | 2014-10-15 | 丹东克隆集团有限责任公司 | Mechanical seal device with external spring sheet isolation spring |
| CN104895825A (en) * | 2014-10-15 | 2015-09-09 | 邢宇 | A shaft sleeve for cooling a double mechanical seal friction pair and a centrifugal pump cooling system having the same |
| CN105114631A (en) * | 2015-08-11 | 2015-12-02 | 青岛海森流体机械工程研究院有限公司 | Shaft end sealing device and fluid conveying equipment |
| CN105351244A (en) * | 2015-11-24 | 2016-02-24 | 青海盐湖工业股份有限公司 | Serial type dry gas sealing device, application of serial type dry gas sealing device to light dydrocarbon pump and application method of serial type dry gas sealing device on light dydrocarbon pump |
| CN109894805A (en) * | 2017-12-11 | 2019-06-18 | 南通虹波机械有限公司 | A kind of preparation method of large gear sealing device |
-
2004
- 2004-06-11 CN CN 200420067533 patent/CN2711469Y/en not_active Expired - Lifetime
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101652589B (en) * | 2007-04-12 | 2012-06-13 | 伊格尔工业股份有限公司 | Mechanical seal device |
| CN101907105A (en) * | 2009-06-08 | 2010-12-08 | 胜达因公司 | The reverse pumping tandem process seal configuration |
| CN102705516A (en) * | 2011-12-29 | 2012-10-03 | 大连华阳光大密封有限公司 | High-efficiency vane centrifugal pump efficiency ring |
| CN102619988A (en) * | 2012-03-07 | 2012-08-01 | 大连华阳光大密封有限公司 | Welded metal bellows seal with moving ring and stationary ring being interchangeable |
| CN102644743A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | High temperature oil flushing baffling sleeve structure |
| CN102644619A (en) * | 2012-04-27 | 2012-08-22 | 大连华阳光大密封有限公司 | Novel impeller type high-efficiency pump ring structure |
| CN103574039A (en) * | 2012-07-18 | 2014-02-12 | 苏州立德泵技术研究院有限公司 | Embedded double-sealing device without sealing cover |
| CN102966739A (en) * | 2012-12-05 | 2013-03-13 | 东莞市华汇精密机械有限公司 | Bellows mechanical sealing device with self-circulation function |
| CN102966739B (en) * | 2012-12-05 | 2015-06-03 | 东莞市华汇精密机械有限公司 | Bellows mechanical sealing device with self-circulation function |
| CN104100718A (en) * | 2014-07-03 | 2014-10-15 | 丹东克隆集团有限责任公司 | Mechanical seal device with external spring sheet isolation spring |
| CN104895825A (en) * | 2014-10-15 | 2015-09-09 | 邢宇 | A shaft sleeve for cooling a double mechanical seal friction pair and a centrifugal pump cooling system having the same |
| CN104895825B (en) * | 2014-10-15 | 2017-12-22 | 邢宇 | The axle sleeve and its centrifugal pump cooling system for cooling down double mechanical seal friction pair |
| CN105114631A (en) * | 2015-08-11 | 2015-12-02 | 青岛海森流体机械工程研究院有限公司 | Shaft end sealing device and fluid conveying equipment |
| CN105351244A (en) * | 2015-11-24 | 2016-02-24 | 青海盐湖工业股份有限公司 | Serial type dry gas sealing device, application of serial type dry gas sealing device to light dydrocarbon pump and application method of serial type dry gas sealing device on light dydrocarbon pump |
| CN109894805A (en) * | 2017-12-11 | 2019-06-18 | 南通虹波机械有限公司 | A kind of preparation method of large gear sealing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2711469Y (en) | Mechanical seal device for light hydrocarbon pump | |
| CN102733932B (en) | Turbocharger | |
| CN105952642B (en) | Bearing cylinder lubrication system and sliding-vane compressor | |
| CN103206271B (en) | Turbine shaft seal arrangement | |
| US3128713A (en) | Hydraulic pump | |
| CN102141035B (en) | High-pressure gear pump with intermediate-pressure bearing lubrication | |
| CN203627324U (en) | High-temperature and high-pressure resistant horizontal single-stage cantilever pump | |
| EP1348897A1 (en) | Shaft seal device | |
| CN102230441B (en) | Runner-plate pump self-lubricating radial thrust bearing | |
| CN201875141U (en) | Oil-gas sealing device for roll box of finishing mill | |
| CN212155491U (en) | Large bearing lubricating device of high-speed pipe strander | |
| CN104074550A (en) | Lubricating oil-free sliding vane expander and/or compressor | |
| CN215979902U (en) | Combined sealing system of steam screw compressor or expander | |
| CN203822655U (en) | Pump for continuous reforming device | |
| CN102943777A (en) | Volute-type high-pressure submerged pump | |
| CN200999801Y (en) | Self-lubricating slide bearing | |
| CN216554105U (en) | Turbocharger | |
| CN113389901B (en) | Sealing structure of stirring shaft of acetylene generator | |
| CN211852248U (en) | Self-circulation thin oil lubricating bearing body of vertical pump | |
| CN214331433U (en) | Structure of external lubricating oil cooler of gear box | |
| CN202182018U (en) | Oil immersed air pump shaft | |
| CN209278084U (en) | A kind of split type crankcase of refrigeration compressor | |
| CN202946453U (en) | Volute-type high-pressure submerged pump | |
| CN213235205U (en) | Water pump assembly and engine | |
| CN217633762U (en) | Screw type vacuum pump flow lubricating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140611 Granted publication date: 20050720 |