CN107435654A - Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus - Google Patents
Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus Download PDFInfo
- Publication number
- CN107435654A CN107435654A CN201710628101.7A CN201710628101A CN107435654A CN 107435654 A CN107435654 A CN 107435654A CN 201710628101 A CN201710628101 A CN 201710628101A CN 107435654 A CN107435654 A CN 107435654A
- Authority
- CN
- China
- Prior art keywords
- ring
- stationary
- axle sleeve
- stationary seat
- face
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 39
- 238000002347 injection Methods 0.000 title claims abstract description 14
- 239000007924 injection Substances 0.000 title claims abstract description 14
- 210000004907 gland Anatomy 0.000 claims abstract description 34
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 230000000694 effects Effects 0.000 claims abstract description 5
- 230000005540 biological transmission Effects 0.000 claims description 27
- 238000009434 installation Methods 0.000 claims description 14
- 230000013011 mating Effects 0.000 claims description 10
- 230000003068 static effect Effects 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims 1
- 238000010276 construction Methods 0.000 abstract description 5
- 238000007667 floating Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Sealing Devices (AREA)
Abstract
Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus of the present invention, moving ring assembly is made up of rotating ring (1), trundle (2), seal ring of moving ring (10), rotating ring (1) coordinates with the male half coupling platform (32) opened up on axle sleeve (3) to be installed, and stationary components include stationary ring (4), stationary ring sealing ring (41), stationary ring stop pin (42), stationary seat (5), counterbalance spring (6), stationary seat stop pin (51), stationary seat sealing ring (72) and formed；Stationary ring (4) coordinates with the male half coupling platform (50) opened up on stationary seat (5) to be installed, coordinating with the inner stopper platform (70) opened up on gland (7) for stationary seat (5) is installed, counterbalance spring (6) acts on stationary seat (5) and compensates effect to stationary ring (4), its is structural good, it is simple in construction, it is safe and reliable, it is adapted to the requirement of multi-state point operation.
Description
Technical field
This patent refers to press the mechanically-sealing apparatus of safety injection pump in mechanically-sealing apparatus, particularly nuclear power station.
Background technology
The mechanically-sealing apparatus that prior art nuclear power medium-voltage safety injection pump uses is as shown in figure 1, by rotating ring, rotating ring sliding sealing
Circle, throw-out collar, counterbalance spring, spring case, the moving ring assembly of transmission holding screw composition, stationary ring, stationary ring sealing ring, stop pin composition
Static components, axle sleeve, positioning of axle sleeve plate, axle sleeve transmission ring, axle sleeve transmission screw, gland form.Rotating ring coordinates with axle sleeve
Installation, and set rotating ring to slide sealing ring with shaft room in the stopping table that rotating ring rear portion opens up, spring case is arranged on axle sleeve
And rotating ring is acted on by throw-out collar by transmission screw and bushing locking down, counterbalance spring, spring case front portion is provided with snap ring set and rotating ring
Tongue on outer shroud coordinates transmission rotating ring；Stationary ring is coordinated by stopping table and gland to be installed, and stationary ring is provided with stopping table and is sealed
Circle, sets stop pin between gland and stationary ring；Axle sleeve is by the positioning of axle sleeve plate and the axle sleeve that are fixedly connected on gland outer face
On the neck that opens up coordinate and carry out axially position, axle sleeve transmission ring coordinate be arranged on axle sleeve outer end by axle sleeve be driven screw with
Principal shaft locking is fixedly connected.
Requirement of the nuclear power medium-voltage safety injection pump for mechanical seal is that to have high reliability, need to be transported under multi-state point
OK.
Above-mentioned prior art nuclear power medium-voltage safety injection pump mechanically-sealing apparatus, rotating ring is as ring is compensated, because its structural member is more,
Participate in that torque transfer components are more, and mating connection relation is more, under high load capacity, high rotating speed, long-term operation operating mode, when there is one zero
During part transmission failure, whole moving ring assembly torque transmission failure, easily break down, influence the security reliability used.
Due to whirling vibration, the vibration of counterbalance spring can influence the stickiness of rotating ring and stationary ring end face, cause close
The reliability decrease of envelope；It is more with pump shaft rotation generation stirring heat and moving ring assembly axial dimension is grown, around sealing friction pair
Temperature raises, and is unfavorable for sealing stable operation, easily causes sealing leak amount greatly or sealing life shortens.
Because nuclear power medium-voltage safety injection pump pump shaft is thicker, the moving ring assembly average diameter as compensation ring is big, linear velocity
Very high, the compensation component for influenceing rotation is quickly made a response, and compensation tracing ability is deteriorated, remaining closed property of seal face moment drop
It is low, the increase of sealing leak amount；And because the diameter of counterbalance spring is smaller and linear velocity is higher, erosion of the medium to spring
Effect is big, the yielding influence compensation performance of spring.
In addition, its spring case tailstock is fixedly connected by being driven holding screw with axle sleeve anti-rotation, pacifies due to nuclear power medium-voltage and note
Pump pump shaft is thicker, and the torque of the spring case tailstock transmission of moving ring assembly is larger, is driven holding screw under high load capacity torque,
Easily occur releasing skidding, loose phenomenon causes transmission failure.And because torque is larger, the holding screw quantity of selection it is more and
Specification is big, and in assembling in order to ensure that transmission holding screw tightening is reliable, moment of torsion when installing transmission holding screw is larger, can make
Deformed into inner hole of shaft sleeve, unnecessary trouble is brought to mechanical seal installation and removal.
It is fixed in addition, axle sleeve is driven screw lock by axle sleeve on main shaft, axle sleeve is driven screw lock not only to main shaft
Certain damage and failure is generated, and reliable transmission is relatively low.
The content of the invention
The purpose of the present invention is that deficiency is improved the shortcomings that being directed to above-mentioned prior art, there is provided a kind of simple in construction, fortune
Row stability is good, service-strong nuclear power medium-voltage safety injection pump mechanically-sealing apparatus.
Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus of the present invention, includes moving ring assembly, static components, axle sleeve, gland.
Moving ring assembly is made up of rotating ring 1, trundle 2, seal ring of moving ring 10, is pacified in the left end of axle sleeve 3 provided with moving ring assembly
Boss 31 is filled, is stood on the right side of the installation base 31 and male half coupling platform 32 is offered on the 31a of end face, the left end of rotating ring 1 and the male half coupling
Platform 32 coordinates installation, and seal ring of moving ring 10 is set between vertical the end face 32a and rotating ring 1 of the male half coupling platform 32 of axle sleeve 3 mating surface,
Stood on the right side of the moving ring assembly installation base 31 of axle sleeve 3 and trundle 2 is fixedly connected with the 31a of end face, trundle 2 and the left side of rotating ring 1
The transmission pin-and-hole 12 opened up on end face coordinates, and rotating ring 1 is driven.
Stationary components include stationary ring 4, stationary ring sealing ring 41, stationary ring stop pin 42, stationary seat 5, counterbalance spring 6, stationary seat
Stop pin 51, stationary seat sealing ring 72 are formed；
Male half coupling platform 50 is offered in the left end face of stationary seat 5, the right-hand member of stationary ring 4 coordinates with the male half coupling platform 50 to be installed,
Stationary ring sealing ring 41 is set on the vertical end face of the male half coupling platform 50 of stationary seat between the mating surface of 50a and stationary ring 4, in stationary seat 5
Stationary ring stop pin 42, stationary ring stop pin 42 and the anti-rotation pin-and-hole opened up in stationary ring its right end face are fixedly connected with left end face 50b
40 coordinate, and prevent stationary ring 4 from being rotated relative to stationary seat 5, and the right-hand member of stationary seat 5 coordinates with the inner stopper platform 70 opened up on gland 7 pacifies
Dress, stationary seat sealing ring 72 is set between the cross face 70a of the inner stopper platform 70 opened up on gland 7 and the mating surface of stationary seat 5,
Circle distribution opens up the mounting hole 60 of counterbalance spring 6, counterbalance spring 6 on the vertical end face 70b of the inner stopper platform 70 opened up on gland 7
The right-hand member of stationary seat 5 is acted on, effect is compensated to stationary ring 4, stationary seat stop pin 51, stationary seat are fixedly connected with gland 7
Stop pin 51 coordinates with the stop pin slotted eye 54 opened up on stationary seat 5, prevents stationary seat 5 from being rotated relative to gland 7.
The present invention is connected with axle sleeve 3 on the right part of the surrounding jacket 3 of gland 7 and is connected drive-train means with main shaft, will
Pump shaft moment of torsion passes to axle sleeve 3.
The present invention is provided with the axially position clamp 8 of axle sleeve 3 on the outer face of gland 7, and axially position clamp 8 on axle sleeve with opening
If neck coordinate to axle sleeve carry out axially position.
The present invention is provided with water seal 9 on the axis hole of gland 7.
The present invention is structural good, simple in construction, safe and reliable, is adapted to the requirement of multi-state point operation.
Its moving ring assembly of the invention is simple in construction, reliable transmission, and stopping table 32 passes through seal ring of moving ring 10 on the axle sleeve of rotating ring 1
Floating dress installation, same stationary ring 4 pass through the floating dress installation of stationary seat sealing ring 41, rotating ring 1 and stationary ring 4 with the stopping table 50 on stationary seat
Conformability is good, and moving ring assembly axial dimension is short, and stirring heat is few caused by rotation, is advantageous to improve sealing stable operation.
Coordinate between rotating seat 1 and axle sleeve 3 of the present invention without transmission mode connects for screw, avoiding makes the abjection pair of transmission screw loosening
Mechanically-sealing apparatus is caused to damage, and the inner hole of shaft sleeve caused by transmission screw is big clamp force can also be avoided to lose circle deformation.
Using stationary ring as compensation ring, not only counterbalance spring is static is not influenceed the present invention by linear velocity, compensates chasing after for component
With excellent performance, structure is more safe and reliable, and structural strength is high, can transmit big torque, and stationary ring coordinates stabilization of floating with rotating ring
Property it is good, sealing it is stable.
Brief description of the drawings
Fig. 1 is prior art construction schematic diagram.
Fig. 2 is structural representation of the embodiment of the present invention.
Embodiment
Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus of the present invention, includes moving ring assembly, static components, axle sleeve, gland.
Moving ring assembly is made up of rotating ring 1, trundle 2, seal ring of moving ring 10, is pacified in the left end of axle sleeve 3 provided with moving ring assembly
Boss 31 is filled, is stood on the right side of the installation base 31 and male half coupling platform 32 is offered on the 31a of end face, the left end of rotating ring 1 and the male half coupling
Platform 32 coordinates installation, and seal ring of moving ring 10 is set between vertical the end face 32a and rotating ring 1 of the male half coupling platform 32 of axle sleeve 3 mating surface,
Stood on the right side of the moving ring assembly installation base 31 of axle sleeve 3 and trundle 2 is fixedly connected with the 31a of end face, trundle 2 and the left side of rotating ring 1
The transmission pin-and-hole 12 opened up on end face coordinates, and rotating ring 1 is driven.
Stationary components include stationary ring 4, stationary ring sealing ring 41, stationary ring stop pin 42, stationary seat 5, counterbalance spring 6, stationary seat
Stop pin 51, stationary seat sealing ring 72 are formed；
Male half coupling platform 50 is offered in the left end face of stationary seat 5, the right-hand member of stationary ring 4 coordinates with the male half coupling platform 50 to be installed,
Stationary ring sealing ring 41 is set on the vertical end face of the male half coupling platform 50 of stationary seat between the mating surface of 50a and stationary ring 4, in stationary seat 5
Stationary ring stop pin 42, stationary ring stop pin 42 and the anti-rotation pin-and-hole opened up in stationary ring its right end face are fixedly connected with left end face 50b
40 coordinate, and prevent stationary ring 4 from being rotated relative to stationary seat 5, and the right-hand member of stationary seat 5 coordinates with the inner stopper platform 70 opened up on gland 7 pacifies
Dress, stationary seat sealing ring 72 is set between the cross face 70a of the inner stopper platform 70 opened up on gland 7 and the mating surface of stationary seat 5,
Circle distribution opens up the mounting hole 60 of counterbalance spring 6, counterbalance spring 6 on the vertical end face 70b of the inner stopper platform 70 opened up on gland 7
The right-hand member of stationary seat 5 is acted on, effect is compensated to stationary ring 4, stationary seat stop pin 51, stationary seat are fixedly connected with gland 7
Stop pin 51 coordinates with the stop pin slotted eye 54 opened up on stationary seat 5, prevents stationary seat 5 from being rotated relative to gland 7.Accompanying drawing embodiment
It is shown, it is fixedly connected with stationary seat stop pin 51, stationary seat anti-rotation on the vertical end face 70b of the inner stopper platform 70 opened up on gland 7
Pin 51 coordinates with the stop pin slotted eye 54 opened up on the right side of stationary seat 5.
The present invention is connected with axle sleeve 3 on the right part of the surrounding jacket 3 of gland 7 and is connected drive-train means with main shaft, will
Pump shaft moment of torsion passes to axle sleeve 3.As shown in accompanying drawing embodiment, transmission ring 33 is connected with the right part of axle sleeve 3 and rotates screw
34, axle sleeve 3 is connected by the transmission screw 34 on transmission ring 33 with main shaft fixed conveyor；Or connected in the right part of axle sleeve 3
There is axle sleeve cohesion device, axle sleeve 3 is connected with main shaft fixed conveyor.
The present invention is provided with the axially position clamp 8 of axle sleeve 3 on the outer face of gland 7, and axially position clamp 8 on axle sleeve with opening
If neck coordinate to axle sleeve carry out axially position.Shown in accompanying drawing embodiment, axially position clamp 8 is and the right-hand member in axle sleeve 3
The snap ring 35 opened up on the transmission ring 33 of portion's connection coordinates carries out axially position to axle sleeve.
The present invention is provided with water seal 9 on the axis hole of gland 7.
Claims (3)
1. nuclear power medium-voltage safety injection pump mechanically-sealing apparatus, includes moving ring assembly, static components, axle sleeve, gland, it is characterized in that：
Moving ring assembly is made up of rotating ring (1), trundle (2), seal ring of moving ring (10), and rotating ring group is provided with the left end of axle sleeve (3)
Part installation base (31), stood on the right side of the installation base (31) on end face (31a) and offer male half coupling platform (32), rotating ring (1)
Left end coordinates with the male half coupling platform (32) to be installed, in the vertical end face (32a) of the male half coupling platform (32) of axle sleeve (3) and rotating ring (1)
Seal ring of moving ring (10) is set between mating surface, stood on the right side of axle sleeve (3) moving ring assembly installation base (31) solid on end face (31a)
Surely trundle (2) is connected, trundle (2) coordinates with the transmission pin-and-hole (12) opened up in rotating ring (1) left end face, to rotating ring (1)
It is driven；
Stationary components include stationary ring (4), stationary ring sealing ring (41), stationary ring stop pin (42), stationary seat (5), counterbalance spring (6),
Stationary seat stop pin (51), stationary seat sealing ring (72) are formed；
Male half coupling platform (50) is offered in the left end face of stationary seat (5), stationary ring (4) right-hand member coordinates with the male half coupling platform (50)
Installation, stationary ring sealing ring is set on the vertical end face of the male half coupling platform (50) of stationary seat between the mating surface of (50a) and stationary ring (4)
(41) stationary ring stop pin (42), stationary ring stop pin (42) and stationary ring, are fixedly connected with the left end face (50b) of stationary seat (5)
The anti-rotation pin-and-hole (40) opened up in its right end face coordinates, and prevents stationary ring (4) from being rotated relative to stationary seat (5), the right-hand member of stationary seat (5)
Coordinate with the inner stopper platform (70) opened up on gland (7) and install, the cross face of the inner stopper platform (70) opened up on gland (7)
Stationary seat sealing ring (72), the inner stopper platform (70) opened up on gland (7) are set between the mating surface of (70a) and stationary seat (5)
Vertical end face (70b) on circle distribution open up counterbalance spring (6) mounting hole (60), counterbalance spring (6) acts on stationary seat (5) right side
End, compensates effect to stationary ring (4), stationary seat stop pin (51), stationary seat stop pin (51) is fixedly connected with gland (7)
Coordinate with the stop pin slotted eye opened up on stationary seat (5), prevent stationary seat (5) from being rotated relative to gland 7.
2. nuclear power medium-voltage safety injection pump mechanically-sealing apparatus according to claim 1, it is characterized in that：
Stationary seat stop pin (51), stationary ring are fixedly connected with the vertical end face (70b) of the inner stopper platform (70) opened up on gland (7)
Seat stop pin (51) coordinates with the stop pin slotted eye (54) opened up on stationary seat (5) right side；
Axle sleeve (3) is connected with the right part of gland (7) surrounding jacket (3) and is connected drive-train means with main shaft, by pump shaft
Moment of torsion passes to axle sleeve (3)；
Axle sleeve (3) axially position clamp (8) is provided with the outer face of gland (7), axially position clamp (8) on axle sleeve with opening up
Neck coordinate to axle sleeve carry out axially position；
Water seal (9) is provided with the axis hole of gland (7).
3. nuclear power medium-voltage safety injection pump mechanically-sealing apparatus according to claim 2, it is characterized in that：
It is to be connected with axle sleeve cohesion device in the right part of axle sleeve (3) that described axle sleeve (3), which is connected drive-train means with main shaft,
Axle sleeve (3) is set to be connected with main shaft fixed conveyor；
Or transmission ring (33) is connected with the right part of axle sleeve (3) and rotates screw (34), axle sleeve (3) passes through transmission ring (33)
On transmission screw (34) be connected with main shaft fixed conveyor；The biography that axially position clamp (8) is connected with the right part of axle sleeve (3)
The snap ring (35) opened up on rotating ring (33) coordinates carries out axially position to axle sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628101.7A CN107435654A (en) | 2017-07-28 | 2017-07-28 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710628101.7A CN107435654A (en) | 2017-07-28 | 2017-07-28 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107435654A true CN107435654A (en) | 2017-12-05 |
Family
ID=60460824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710628101.7A Pending CN107435654A (en) | 2017-07-28 | 2017-07-28 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107435654A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340171A (en) * | 2018-11-23 | 2019-02-15 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
| CN109488770A (en) * | 2018-12-20 | 2019-03-19 | 丹东克隆集团有限责任公司 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
| CN111442091A (en) * | 2020-04-21 | 2020-07-24 | 丹东克隆集团有限责任公司 | Integrated closed spring compensation static ring assembly of mechanical sealing device |
| CN111442092A (en) * | 2020-04-21 | 2020-07-24 | 丹东克隆集团有限责任公司 | Mechanical sealing device for closed integrated spring compensation static ring assembly |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209586Y (en) * | 2008-06-26 | 2009-03-18 | 大庆油田有限责任公司 | Mechanical sealing device for high-pressure water filling pump |
| 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 |
| CN103486270A (en) * | 2013-09-20 | 2014-01-01 | 丹东克隆集团有限责任公司 | Mechanical seal device for nuclear power waste heat removal pump |
| CN103486076A (en) * | 2013-09-19 | 2014-01-01 | 丹东克隆集团有限责任公司 | Nuclear power charging pump mechanical seal device |
| CN203604648U (en) * | 2013-12-13 | 2014-05-21 | 周寿云 | Half packaging type mechanical seal structure |
| CN204099265U (en) * | 2014-08-12 | 2015-01-14 | 浙江科尔泵业股份有限公司 | The voltage regulation type unit loading type mechanical shaft seal assembly of centrifugal pump |
| CN105065675A (en) * | 2015-07-24 | 2015-11-18 | 西华大学 | Seal ring with streamline groove end face and mechanical seal device |
| JP2016166646A (en) * | 2015-03-09 | 2016-09-15 | 日本ピラー工業株式会社 | Mechanical seal for slurry liquid |
| CN207246093U (en) * | 2017-07-28 | 2018-04-17 | 丹东克隆集团有限责任公司 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
-
2017
- 2017-07-28 CN CN201710628101.7A patent/CN107435654A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201209586Y (en) * | 2008-06-26 | 2009-03-18 | 大庆油田有限责任公司 | Mechanical sealing device for high-pressure water filling pump |
| 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 |
| CN103486076A (en) * | 2013-09-19 | 2014-01-01 | 丹东克隆集团有限责任公司 | Nuclear power charging pump mechanical seal device |
| CN103486270A (en) * | 2013-09-20 | 2014-01-01 | 丹东克隆集团有限责任公司 | Mechanical seal device for nuclear power waste heat removal pump |
| CN203604648U (en) * | 2013-12-13 | 2014-05-21 | 周寿云 | Half packaging type mechanical seal structure |
| CN204099265U (en) * | 2014-08-12 | 2015-01-14 | 浙江科尔泵业股份有限公司 | The voltage regulation type unit loading type mechanical shaft seal assembly of centrifugal pump |
| JP2016166646A (en) * | 2015-03-09 | 2016-09-15 | 日本ピラー工業株式会社 | Mechanical seal for slurry liquid |
| CN105065675A (en) * | 2015-07-24 | 2015-11-18 | 西华大学 | Seal ring with streamline groove end face and mechanical seal device |
| CN207246093U (en) * | 2017-07-28 | 2018-04-17 | 丹东克隆集团有限责任公司 | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340171A (en) * | 2018-11-23 | 2019-02-15 | 广州凯里莱电气机械有限公司 | A kind of spring external anhydrous mechanical seal structure |
| CN109488770A (en) * | 2018-12-20 | 2019-03-19 | 丹东克隆集团有限责任公司 | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device |
| CN111442091A (en) * | 2020-04-21 | 2020-07-24 | 丹东克隆集团有限责任公司 | Integrated closed spring compensation static ring assembly of mechanical sealing device |
| CN111442092A (en) * | 2020-04-21 | 2020-07-24 | 丹东克隆集团有限责任公司 | Mechanical sealing device for closed integrated spring compensation static ring assembly |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107401616A (en) | Nuclear power low pressure safety injection pump mechanically-sealing apparatus | |
| CN107435654A (en) | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus | |
| CN107355415A (en) | Nuclear power condensate pump mechanically-sealing apparatus | |
| AU2007283934B2 (en) | A rotary compensating device used in a pipe under high pressure | |
| US20170098990A1 (en) | Self-alignment Protection Device for Permanent-magnet Coupling | |
| CN207246093U (en) | Nuclear power medium-voltage safety injection pump mechanically-sealing apparatus | |
| EP2212609A1 (en) | Double block and bleed plug | |
| CN105464882B (en) | Main shaft sealing device and the axial flow hydraulic turbine with the device | |
| CN207229754U (en) | Nuclear power low pressure safety injection pump mechanically-sealing apparatus | |
| CN103470759A (en) | Double-seal high temperature and high pressure rotary compensator and manufacturing method thereof | |
| CN207246092U (en) | Nuclear power condensate pump mechanically-sealing apparatus | |
| CN103322211B (en) | A kind of without pin connection metallic seal butterfly valve | |
| CN209041566U (en) | A kind of mechanically-sealing apparatus of high viscosity ball mill | |
| CN209587131U (en) | A kind of duplex bearing bi-directional combination sealing device | |
| CN209539631U (en) | Nuclear power feed pump mechanical sealing linkage ring device | |
| CN207246421U (en) | Nuclear power safety injection pump mechanically-sealing apparatus drag ring and the fit structure of its ring seat | |
| CN207583871U (en) | A kind of tapered shaft shaft coupling | |
| CN209540044U (en) | Nuclear power plant containment shell heat derives pump uses double end-face mechanical sealing device | |
| CN201963875U (en) | Seal assembly for elastic compensation ring | |
| CN207603429U (en) | A kind of high-speed type synchronous permanent-magnet shaft coupling | |
| CN207961520U (en) | A kind of swivel joint seal device | |
| CN207378160U (en) | A kind of kettle double mechanical seal | |
| CN107355541A (en) | Nuclear power safety injection pump mechanically-sealing apparatus drag ring and the fit structure of its ring seat | |
| CN208651895U (en) | A kind of hydraumatic swivel joint | |
| CN208417896U (en) | A kind of dry type quick coupling |
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: 20171205 |
|
| RJ01 | Rejection of invention patent application after publication |