CN108757551A - A kind of corrosion-resistant big transmission pitch mechanical sealing member - Google Patents
A kind of corrosion-resistant big transmission pitch mechanical sealing member Download PDFInfo
- Publication number
- CN108757551A CN108757551A CN201810536119.9A CN201810536119A CN108757551A CN 108757551 A CN108757551 A CN 108757551A CN 201810536119 A CN201810536119 A CN 201810536119A CN 108757551 A CN108757551 A CN 108757551A
- Authority
- CN
- China
- Prior art keywords
- ring
- gland
- axle sleeve
- transmission
- corrosion
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/02—Selection of particular materials
- F04D29/026—Selection of particular materials especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
Abstract
The invention discloses a kind of corrosion-resistant big transmission pitch mechanical sealing members, including gland, stationary ring, rotating ring and axle sleeve, gland is set in outside axle sleeve, there is the end internal projecting ring of radially protruding on the inside of gland right end, the guiding bulge loop being slidably matched with stationary ring also formed with radially protruding on the inside of gland, it is oriented to bulge loop, end internal projecting ring, stationary ring, side wall of shaft sleeve and gland side wall together form sealing inner cavity, the step-like flange of radially protruding is equipped on the outside of axle sleeve left end, rotating ring fixation is set in the first step portion of step-like flange, there is the bulge loop that radially protruding is contacted with first step end surface on the inside of rotating ring, stationary ring left end is mutually adjacent to rotating ring right end, the other end of stationary ring is pressed in by the spring being set in sealing inner cavity on the internal projecting ring of end.The present invention enables the internal part of pitch medium and sealing element keep apart, and the spring section for being especially easy to be corroded is protected well.
Description
Technical field
The present invention relates to sealing element fields, and in particular to a kind of corrosion-resistant big transmission pitch mechanical sealing member.
Background technology
Currently, mechanically-sealing apparatus is widely used in the fluid machinery with apparatus for rotating of the industries such as oil refining, chemical industry
In work pump.The medium of the middle sealing device of bitumenpump is pitch, has stronger corrosivity, while solid particle therein is pumping
Many components in sealing device can be caused to wear when axis high speed rotation, and then lead to seal failure.
The utility model patent of application number CN201520992161.3 provides a kind of asphalt mixing device sealing structure, although
By importing heat tracing medium in sealing structure, realization prevents sealing ring from tearing, seal failure caused by avoiding therefore.But it seals
The other component of device such as spring still can be ineffective because corroding, and sealing device is caused to fail.
The utility model patent of application number CN201610174297.2 provides a kind of chemical pump water tank type cabinet sealing element,
Although part sealing device component and medium are isolated with flange ring, pressure ring and outer baffle ring composition cavity structure.A but side
Face needs to increase the components such as flange ring, pressure ring and outer baffle ring, and is needed using corrosion-resistant as the component being in contact with medium
Abrasion resisting material, therefore improve cost.In addition the component occupied space that the cavity structure of the structure need to assemble is big, influences gland
Etc. the setting of other components, the scope of application is affected.
Invention content
The purpose of the present invention is to provide a kind of corrosion-resistant big transmission pitch mechanical sealing members, close in the prior art to solve
Sealing component cannot be isolated with pitch medium, sealing element component corrosion-vulnerable and problem easy to wear.
The corrosion-resistant big transmission pitch mechanical sealing member, including gland, stationary ring, rotating ring and axle sleeve, gland are set in
Outside axle sleeve, there is the end internal projecting ring of radially protruding on the inside of gland right end, also formed with radially protruding on the inside of gland with it is quiet
The guiding bulge loop that ring is slidably matched, guiding bulge loop, end internal projecting ring, stationary ring, side wall of shaft sleeve and gland side wall together form close
Inner cavity is sealed, the step-like flange of radially protruding is equipped on the outside of axle sleeve left end, rotating ring fixes the First for being set in step-like flange
There is the bulge loop that radially protruding is contacted with first step end surface, stationary ring left end and rotating ring right end are mutual in rank portion, on the inside of rotating ring
It is adjacent to, the other end of stationary ring is pressed in by the spring being set in sealing inner cavity on the internal projecting ring of end.
Preferably, the rotation stop bolt being inserted radially into is installed, the stationary ring is equipped with and the rotation stop spiral shell on the gland
The guide chute that the insertion end of bolt is slidably matched.
Preferably, it is equipped with sleeve sealing circle on the inside of axle sleeve left end, is provided with gland ring in gland left end face, first
The side of stage portion is equipped with seal ring of moving ring, and the stationary ring for being located at and being oriented on bulge loop end face is equipped between stationary ring and gland inside and is sealed
Circle.
Preferably, the spring is the big line footpath spring being sleeved on outside the axle sleeve.
Preferably, the outer sheath of the axle sleeve is equipped with the transmission pressure ring with its tight fit, is arranged on the outside of the transmission pressure ring
There are outer press ring, extrusion screw that the interconnecting piece of the transmission pressure ring, the outer press ring and locating piece right end is passed through to be connected to three
Together, there is radial flange, the radial flange to coordinate with the groove on the outside of the gland end on the inside of the locating piece left end；
There is on the outside of the transmission pressure ring with the outer press ring inside taper type step being fitted to each other, the step end of the transmission pressure ring
Face and there is gap between the step end face of the outer press ring, the extrusion screw passes through the gap.
Preferably, the outer sheath of axle sleeve is equipped with transmission ring, and transmission ring is fixed by screw and axle sleeve, is installed on axle sleeve
The snap ring of position-limiting action is played on the right side of transmission ring.
Preferably, transmission ring outer sheath is equipped with the locating piece that is secured to by screw, have on the inside of locating piece left end with
The radial flange of gland connection, radial flange are inserted into the groove on the outside of gland end.
Preferably, stationary ring is made of YG8 tungsten-cobalt alloys, and rotating ring is made of YG6 tungsten-cobalt alloys, axle sleeve and gland be by
Stainless steel is made.
The advantage of the invention is that：Bulge loop, end internal projecting ring, stationary ring, side wall of shaft sleeve and gland side wall is oriented to be formed together
Sealing inner cavity, the internal part of pitch medium and sealing element is kept apart, the spring section for being especially easy to be corroded obtains
Protection well.The part that phase mutual friction is easy to happen when rotating simultaneously only inherently needs to use the high anticorrosive material of high abrasion
Manufactured rotating ring and the meeting of stationary ring part and media contact, strong friction will not occurs with media contact part in other substantially, reduce
Sealing element other component generates the possibility of abrasion when pump shaft high speed rotation, increases the service life of sealing element.And the knot
Inner cavity is sealed in structure only need to make limited modification to the structure of gland and stationary ring, will not occupy too many space, can be applied to more
The sealing situation of kind form, the scope of application are more.
Transmission ring is installed by female end holding screw, is not easy to loosen, and reliable transmission is good, and snap ring positions convenient for transmission ring,
Enable its easy for installation.Transmission ring is connected by locating piece with gland, forms a set of integrated mechanical sealing, ensures gland and axle sleeve
Relative axial position is constant, reduces play.Big line footpath spring volume is big, elastic stability, is not susceptible to rock vibration, for high speed
The sealing element good reliability of rotation, service life are long.Stationary ring, rotating ring, axle sleeve and gland material be and respectively need to be consistent, no
Becoming rusty steel can be corrosion-resistant, and price is less than tungsten-cobalt alloy.And stationary ring and rotating ring use the tungsten-cobalt alloy of corresponding wear resistant corrosion resistant, Ji Nengfang
Only from buffer action of the dielectric corrosion wear-out failure sealing inner cavity to pitch medium of experiencing, and it can guarantee and pasting under the action of the spring
The end face of conjunction forms the sealing effect that diaphragm seal ensures sealing element.Although pitch is easily to cause Jie corroded and worn to sealing element
Matter, this sealing element only have stationary ring, rotating ring that need to use the alloy of high price, and totle drilling cost is without too big promotion.
Description of the drawings
Fig. 1 is the structural schematic diagram of the embodiment of the present invention 1；
Fig. 2 is the partial structural diagram that the embodiment of the present invention 2 distinguishes part with the embodiment 1.
Wherein, 1, axle sleeve, 2, rotating ring, 3, stationary ring, 4, spring, 5, fillister head screw, 6, locating piece, 7, transmission ring, 8, card
Ring, 9, female end holding screw, 10, gland, 11, stationary ring sealing ring, 12, gland ring, 13, seal ring of moving ring, 14, axle sleeve it is close
Seal, 15, guide chute, 16, rotation stop bolt, 17, radial flange, 18, first step portion, 19, end internal projecting ring, 20, be oriented to
Bulge loop, 21, transmission pressure ring, 22, extrusion screw, 23, outer press ring.
Specific implementation mode
Below against attached drawing, by the description of the embodiment, making further details of theory to the specific embodiment of the invention
It is bright, to help those skilled in the art to have more complete, accurate and deep reason to the inventive concept of the present invention, technical solution
Solution.
Embodiment 1：
As shown in Figure 1, the present invention provides a kind of corrosion-resistant big transmission pitch mechanical sealing member, including gland 10, stationary ring
3, rotating ring 2, transmission ring 7, spring 4 and axle sleeve 1.Stationary ring 3, rotating ring 2, transmission ring 7, spring 4 and gland 10 are all set in axle sleeve 1
Outside, stationary ring 3, rotating ring 2 and spring 4 are located at 10 inside of gland, and transmission ring 7 is located at 10 the right of gland, and 10 left side of gland is directed towards drip
On one side, 10 the right of gland is then far from pitch medium one side to green medium.
There is the end internal projecting ring 19 of radially protruding, 10 inside of gland also to be formed with radially protruding on the inside of 10 right end of gland
The guiding bulge loop 20 being slidably matched with stationary ring 3.The step-like flange of radially protruding is equipped on the outside of 1 left end of axle sleeve, rotating ring 2 is fixed
It is set in the first step portion 18 of step-like flange.There is 2 inside of rotating ring radially protruding to be contacted with 18 end face of first step portion
Bulge loop, be convenient for rotating ring 2 location and installation.It is oriented to bulge loop 20, end internal projecting ring 19,10 side of stationary ring 3,1 side wall of axle sleeve and gland
Wall together forms sealing inner cavity.3 left end of stationary ring is mutually adjacent to 2 right end of rotating ring, and the other end of stationary ring 3 is by being set to sealing
Spring 4 in inner cavity is pressed on end internal projecting ring 19.Spring 4 is the big line footpath spring being sleeved on outside the axle sleeve 1.Big line footpath spring
Volume is big, elastic stability, is not susceptible to rock vibration, is used for high-speed rotating sealing element good reliability, and service life is long.
It is equipped on gland 10 and is inserted radially into rotation stop bolt 16, stationary ring 3 is equipped with guide chute 15, and rotation stop bolt 16 is inserted
Enter end to be slidably matched across gland 10 and the guide chute 15, playing prevents stationary ring 3 from sending the work relatively rotated with gland 10
With.
It is equipped with sleeve sealing circle 14 on the inside of axle sleeve 1 left end, is provided with gland ring 12 in 10 left end face of gland, first
The side of stage portion 18 is equipped with seal ring of moving ring 13, is equipped with and is located on 20 end face of guiding bulge loop between 10 inside of stationary ring 3 and gland
Stationary ring sealing ring 11.Ensure the sealing to left side pitch medium in this way, prevents it from leaking into outside sealing inner cavity or this sealing element
Portion.
The outer sheath of axle sleeve 1 is equipped with transmission ring 7, and transmission ring 7 is fixed by female end holding screw 9 and axle sleeve 1, on axle sleeve 1
It is installed with and plays the snap ring 8 of position-limiting action on 7 right side of transmission ring.7 outer sheath of transmission ring is equipped with solid with it by fillister head screw 5
There is the radial flange 17 being connect with gland 10, radial flange 17 to be inserted into gland 10 for fixed locating piece 6,6 left end of locating piece inside
Groove on the outside of end.Transmission ring 7 is installed by female end holding screw 9, is not easy to loosen, and reliable transmission is good, and snap ring 8 is convenient for biography
Rotating ring 7 positions, and enables its easy for installation.Transmission ring 7 is connected by locating piece 6 with gland 10, forms a set of integrated mechanical sealing, protects
It demonstrate,proves gland 10 and the relative axial position of axle sleeve 1 is constant, reduce play.
Stationary ring 3 is made of YG8 tungsten-cobalt alloys, and rotating ring 2 is made of YG6 tungsten-cobalt alloys, and axle sleeve 1 and gland 10 are by not
Rust steel is made.Stainless steel can be corrosion-resistant, and price is less than tungsten-cobalt alloy.And stationary ring 3 and rotating ring 2 use the tungsten of corresponding wear resistant corrosion resistant
Cobalt alloy, can prevent from dielectric corrosion wear-out failure sealing inner cavity of experiencing to the buffer action of pitch medium and
Spring 4 ensures the sealing effect of sealing element in the end face of fitting formation diaphragm seal under acting on.Although pitch is easily to be made to sealing element
At the medium of corrosion and abrasion, this sealing element only has the alloy that stationary ring 3, rotating ring 2 need to use high price, totle drilling cost not to carry greatly very much
It rises.
Embodiment 2：
The present embodiment and embodiment 1 difference lies in：Transmission ring 7 becomes being driven pressure ring 21, and the structure of locating piece 5 is also therewith
Change, and adds outer press ring 23.Specific improvement is as follows：
The outer sheath of axle sleeve 1 is equipped with the transmission pressure ring 21 with 1 tight fit of the axle sleeve, and axle sleeve 1 is connected to by its right side
On snap ring 8 positioned, axle sleeve 1 is by being driven the pressure fixation pressed against that is generated to it of pressure ring 21.It is driven outside pressure ring 21
It is cased with outer press ring 23, there is mutually matched taper type step between outer press ring 23 and transmission pressure ring 21.The platform being driven on pressure ring 21
Rank end face and there are gap, extrusion screw 22 to pass perpendicularly through above-mentioned step end face and gap between the step end face of 5 right end of locating piece.
5 right end of locating piece has the interconnecting piece perpendicular to 1 axis of axle sleeve, the company of 23 left side of outer press ring and 5 right end of locating piece
Socket part is bonded.Extrusion screw 22 passes through the interconnecting piece of transmission pressure ring 21,5 right end of outer press ring 23 and locating piece that three is connected to one
It rises.In this way when extrusion screw 22 is tightened, locating piece 5 can generate radial compression to transmission pressure ring 21 by the side of taper and make
With transmission pressure ring 21, which inwardly shrinks and then squeezes axle sleeve 1, plays fastening transmission effect.This embodiment is run jointly for 1 discomfort of axle sleeve
The case where hole, transmission pressure ring 21 can be positioned effectively with gland 10 by locating piece, prevent axial float, while pressing further through fastening
The radial pressure that tight bolt 22 is brought tightly is pressed with axle sleeve 1 to be fixed together.A circle hold-down bolt need to be only fastened when assembly
22 just realize the fastening transmission with the positioning of gland 10 and to axle sleeve 1 simultaneously, and easy to assembly, efficiency improves.
Bulge loop 20, end internal projecting ring 19, stationary ring 3,1 side wall of axle sleeve and 10 side wall of gland shape together are oriented in above-mentioned sealing element
At sealing inner cavity, the internal part of pitch medium and sealing element is kept apart, 4 part of the spring being corroded especially is easy and obtains
To good protection.The part that phase mutual friction is easy to happen when rotating simultaneously only inherently needs to use the high corrosion resistant material of high abrasion
Rotating ring 2 and 3 part meeting of stationary ring and media contact made of material, strong friction will not occurs with media contact part in other substantially,
Sealing element other component generates the possibility of abrasion when reducing pump shaft high speed rotation, increases the service life of sealing element.And
Inner cavity is sealed in the structure only need to make limited modification to the structure of gland 10 and stationary ring 3, will not occupy too many space, Ke Yiying
For the sealing situation of diversified forms, the scope of application is more.
The present invention is exemplarily described above in conjunction with attached drawing, it is clear that the present invention implements not by aforesaid way
Limitation, it is or not improved as long as using the method for the present invention design and the improvement of various unsubstantialities that technical solution carries out
Present inventive concept and technical solution are directly applied into other occasions, within the scope of the present invention.
Claims (8)
1. a kind of corrosion-resistant big transmission pitch mechanical sealing member, it is characterised in that：Including gland (10), stationary ring (3), rotating ring (2)
With axle sleeve (1), gland (10) is set in axle sleeve (1) outside, has the end convex of radially protruding on the inside of gland (10) right end
Ring (19), the guiding bulge loop being slidably matched with the stationary ring (3) that gland (10) inside is also formed with radially protruding
(20), the guiding bulge loop (20), end internal projecting ring (19), the stationary ring (3), the axle sleeve (1) side wall and the gland
(10) side wall together forms sealing inner cavity, and the step-like flange of radially protruding is equipped on the outside of axle sleeve (1) left end, described dynamic
Ring (2) fixation is set in the first step portion (18) of the step-like flange, have on the inside of the rotating ring (2) radially protruding with
The bulge loop of first step portion (18) the end face contact, stationary ring (3) left end are mutually adjacent to the rotating ring (2) right end, institute
The other end for stating stationary ring (3) is pressed in by the spring (4) being set in the sealing inner cavity on the end internal projecting ring (19).
2. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to claim 1, it is characterised in that：The gland
(10) the rotation stop bolt (16) being inserted radially into is installed, the stationary ring (3) is equipped with the insertion with the rotation stop bolt (16) on
Hold the guide chute (15) being slidably matched.
3. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to claim 1, it is characterised in that：The axle sleeve
(1) it is equipped with sleeve sealing circle (14) on the inside of left end, gland ring (12) is provided in gland (10) left end face, it is described
The side in first step portion (18) is equipped with seal ring of moving ring (13), and the stationary ring (3) gland (10) is equipped with position between inside
Stationary ring sealing ring (11) on described guiding bulge loop (20) end face.
4. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to claim 1, it is characterised in that：The spring
(4) it is to be sleeved on the big line footpath spring of the axle sleeve (1) outside.
5. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to any one of claim 1-4, it is characterised in that：
The outer sheath of the axle sleeve (1) is equipped with the transmission pressure ring (21) with its tight fit, and transmission pressure ring (21) outer sheath is equipped with outer
Pressure ring (23), extrusion screw (22) pass through the connection of transmission pressure ring (21), the outer press ring (23) and locating piece (5) right end
Portion links together three, has radial flange (17), the radial flange (17) and institute on the inside of locating piece (5) left end
State the groove cooperation on the outside of gland (10) end；Have each other on the inside of the outer press ring (23) on the outside of the transmission pressure ring (21)
The taper type step of cooperation, the step end face of the transmission pressure ring (21) with it is free between the step end face of the outer press ring (23)
Gap, the extrusion screw (22) pass through the gap.
6. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to any one of claim 1-4, it is characterised in that：
The outer sheath of the axle sleeve (1) is equipped with transmission ring (7), and the transmission ring (7) is fixed by screw and the axle sleeve (1), described
The snap ring (8) that position-limiting action is played on the right side of the transmission ring (7) is installed on axle sleeve (1).
7. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to claim 6, it is characterised in that：The transmission ring
(7) outer sheath is equipped with the locating piece (5) being secured to by screw, has and the gland on the inside of locating piece (5) left end
(10) radial flange (17) connected, the radial flange (17) are inserted into the groove on the outside of gland (10) end.
8. the corrosion-resistant big transmission pitch mechanical sealing member of one kind according to claim 1, it is characterised in that：The stationary ring
(3) it is made of YG8 tungsten-cobalt alloys, the rotating ring (2) is made of YG6 tungsten-cobalt alloys, the axle sleeve (1) and the gland
(10) it is to be made of stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536119.9A CN108757551A (en) | 2018-05-30 | 2018-05-30 | A kind of corrosion-resistant big transmission pitch mechanical sealing member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810536119.9A CN108757551A (en) | 2018-05-30 | 2018-05-30 | A kind of corrosion-resistant big transmission pitch mechanical sealing member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108757551A true CN108757551A (en) | 2018-11-06 |
Family
ID=64003958
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810536119.9A Pending CN108757551A (en) | 2018-05-30 | 2018-05-30 | A kind of corrosion-resistant big transmission pitch mechanical sealing member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108757551A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201059282Y (en) * | 2007-06-08 | 2008-05-14 | 聂如国 | Mechanical sealing structure of pump shaft |
| CN202545822U (en) * | 2012-03-27 | 2012-11-21 | 安徽德润工业设备有限公司 | Static mechanical seal structure |
| CN202612621U (en) * | 2012-03-26 | 2012-12-19 | 安徽德润工业设备有限公司 | Stationary packaging type mechanical sealing structure |
| CN204312389U (en) * | 2014-12-16 | 2015-05-06 | 自贡蜜蜂牌机械密封有限责任公司 | Desulfur pump mechanical seal |
| CN204437275U (en) * | 2015-01-12 | 2015-07-01 | 芜湖市中天密封件有限公司 | A kind of grains of sand seperator Sealing |
| CN205978462U (en) * | 2016-08-26 | 2017-02-22 | 昆山福步工业设备有限公司 | Be applied to the chemical industry's single -ended face mechanical seal |
| CN107524810A (en) * | 2016-06-21 | 2017-12-29 | 辽宁天泽产业集团机械制造有限公司 | A kind of stirrer mechanical seal device |
| CN207297449U (en) * | 2017-09-30 | 2018-05-01 | 四川大禹机械密封件制造有限公司 | Super corrosion resistant large arch dam mechanically-sealing apparatus |
-
2018
- 2018-05-30 CN CN201810536119.9A patent/CN108757551A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201059282Y (en) * | 2007-06-08 | 2008-05-14 | 聂如国 | Mechanical sealing structure of pump shaft |
| CN202612621U (en) * | 2012-03-26 | 2012-12-19 | 安徽德润工业设备有限公司 | Stationary packaging type mechanical sealing structure |
| CN202545822U (en) * | 2012-03-27 | 2012-11-21 | 安徽德润工业设备有限公司 | Static mechanical seal structure |
| CN204312389U (en) * | 2014-12-16 | 2015-05-06 | 自贡蜜蜂牌机械密封有限责任公司 | Desulfur pump mechanical seal |
| CN204437275U (en) * | 2015-01-12 | 2015-07-01 | 芜湖市中天密封件有限公司 | A kind of grains of sand seperator Sealing |
| CN107524810A (en) * | 2016-06-21 | 2017-12-29 | 辽宁天泽产业集团机械制造有限公司 | A kind of stirrer mechanical seal device |
| CN205978462U (en) * | 2016-08-26 | 2017-02-22 | 昆山福步工业设备有限公司 | Be applied to the chemical industry's single -ended face mechanical seal |
| CN207297449U (en) * | 2017-09-30 | 2018-05-01 | 四川大禹机械密封件制造有限公司 | Super corrosion resistant large arch dam mechanically-sealing apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4162651B2 (en) | Threaded fittings | |
| MX2010009517A (en) | Threaded joint with improved resilient seal ring. | |
| CN101696729B (en) | Combined sealing structure of combined sealing device and steering drilling tool | |
| CN108757551A (en) | A kind of corrosion-resistant big transmission pitch mechanical sealing member | |
| CN201651328U (en) | Mechanical seal device convenient to disassemble and assemble | |
| CN108869380A (en) | A kind of big transmission pitch mechanical sealing member of modified | |
| CN106286842A (en) | A kind of horizontal reactor axle end sealing device | |
| CN210531661U (en) | Single-valve-seat full-lining ceramic ball valve | |
| CN209761843U (en) | Integrated mechanical seal for fluorine lining slurry pump | |
| CN201221491Y (en) | Mechanical sealing device | |
| CN201909043U (en) | High-temperature and high-pressure butterfly valve of bidirectional-flow and self-seal elastic valve seat | |
| CN112253535A (en) | High-temperature screw asphalt pump mechanical sealing element | |
| CN201144856Y (en) | Series packaging type welding metal bellows machine sealing apparatus | |
| CN204003589U (en) | A kind of anti-corrosion centrifugal pump shaft mechanical seal | |
| JP2003065439A (en) | High pressuere fluid sealing device | |
| CN106762677B (en) | Multistage split pump | |
| CN101737355B (en) | Mechanical seal in IFB phenolic aldehyde glass fiber centrifugal pump | |
| CN104564661A (en) | Novel large flow gear pump | |
| CN221120583U (en) | Thread anti-sticking structure with guide belt | |
| CN106704742B (en) | High-performance double seals rotary joint | |
| CN207331240U (en) | A kind of axle sleeve leak-proof arrangement and sewing machine | |
| CN201575249U (en) | Novel revolving joint for sealing spring compressing type end surface | |
| EP3887696B1 (en) | Seal assembly with anti-rotation and stability features | |
| CN218177364U (en) | Novel plunger hydraulic motor | |
| CN216142958U (en) | External sealed centrifugal pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181106 |
|
| RJ01 | Rejection of invention patent application after publication |