CN209539569U - Secondary seal magnetic drive pump - Google Patents
Secondary seal magnetic drive pump Download PDFInfo
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- CN209539569U CN209539569U CN201822185834.0U CN201822185834U CN209539569U CN 209539569 U CN209539569 U CN 209539569U CN 201822185834 U CN201822185834 U CN 201822185834U CN 209539569 U CN209539569 U CN 209539569U
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Abstract
The utility model secondary seal magnetic drive pump, it is characterized in that the axle sleeve in outer magnet rotor is stood between end plate (07a) and the inboard bearing gland (10a) of bearing housing equipped with the mechanical seal of dry gas formula；Moving ring assembly is by rotating ring (21), rotating ring stop pin (22), auxiliary seal ring (23) composition, static components are by stationary ring (31), counterbalance spring (32), throw-out collar (33), it slides sealing ring (34), stationary ring stop pin (35), limit spring snap ring (36) composition, when separation sleeve leakage high-pressure medium enters in connection frame inner cavity, mechanical seal is carried out to the medium leaked into connection frame inner cavity using the sealing performance of dry gas formula mechanical seal, prevent medium from leaking into outside pump by bearing housing, reach and carries out automatic secondary sealing in separation sleeve leakage, further increase the property safe and reliable to operation of magnetic drive pump.
Description
Technical field
The utility model relates to magnetic drive pumps, especially to the driving sealing of magnetic drive pump.
Background technique
Magnetic drive pump include the pump housing 01, pump cover 02, pump shaft 03, impeller 04, interior magnet rotor 05, separation sleeve 06, outer magnet rotor 07,
Connection frame 08, drive shaft 09, bearing housing 10, separation sleeve 06 is sealedly and fixedly connected with pump cover 02 makes shaft seal, bearing housing
10 dock or are integrally formed with the sealing of connection frame 08, are fixedly connected outside installation on 09 shaft end of drive shaft in 08 inner cavity of connection frame
Magnet rotor 07, be mounted on the interior magnet rotor 05 on pump shaft 03 in separation sleeve 06 with separation sleeve 06 outside outer magnet rotor 07 cooperation
Band pump shaft 03 rotates.
The prior art is between the inboard bearing gland 10a and drive shaft 09 of bearing housing 10 or the inboard bearing of bearing housing 10
Gland 10a and the shaft room for the outer magnet rotor 07 being mounted in drive shaft 09 are only equipped with dust pan and labyrinth seal structure,
It only plays the lubricant leakage in dust-proof and prevention bearing housing 10.
During operation, the ferromagnetism or particulate contamination being mixed in medium, which can enter in separation sleeve, causes separation sleeve
Wear and leakage, or because other reasons leak separation sleeve, separation sleeve 06 is once the high-pressure medium leaked in its inner cavity enters company
It connects in 08 inner cavity of frame, can be leaked out along 09 gap of drive shaft, and the dust pan and labyrinth sealing in drive shaft 09 prevent not
High-pressure medium is leaked out along drive shaft 09, leads to magnetic force bump leakage, producers can not quickly and effectively control.Due to
Magnetic drive pump pumped (conveying) medium is largely inflammable, explosive, toxic, harmful or relatively valuable medium, and separation sleeve 06 is once revealed not only
It will affect production, pollute, or even jeopardize the life security of producers.
Utility model content
The shortcomings that the purpose of this utility model is for above-mentioned prior art deficiency improves, and provides a kind of secondary seal
Magnetic drive pump, to drive shaft carry out automatic-sealed, to improve the property safe and reliable to operation of magnetic drive pump, reach separation sleeve leakage when into
The sealing of row automatic secondary makes remedial measure for producers and provides the reply time.
The utility model magnetic drive pump include the pump housing 01, pump cover 02, pump shaft 03, impeller 04, interior magnet rotor 05, separation sleeve 06,
Outer magnet rotor 07, connection frame 08, drive shaft 09, bearing housing 10, separation sleeve 06 are sealedly and fixedly connected with pump cover 02, bearing housing 10 with
Connection frame 08 sealing docking or be integrally formed, be mounted on the interior magnet rotor 05 on pump shaft 03 in separation sleeve 06 be fixedly mounted
07 mating band pump shaft 03 of outer magnet rotor rotation on 06 outer drive shaft of separation sleeve, 09 shaft end；It is characterized in that in outer magnet rotor 07
Axle sleeve stand the end plate 07a and inboard bearing gland 10a of bearing housing 10 between be equipped with the mechanical seal of dry gas formula.
Dry gas formula mechanical seal, including moving ring assembly, static components.
Moving ring assembly is made of rotating ring 21, rotating ring stop pin 22, auxiliary seal ring 23.
The axle sleeve of magnet rotor 07 stands and offers rotating seat inner stopper platform 20 on end plate 07a outside magnetic drive pump, and rotating ring 21 is embedded in
On the rotating seat inner stopper platform 20, sealing is offered on the axial end face 201 of the rotating seat inner stopper platform 20
Auxiliary seal ring 23 is arranged in slot 202 in the seal groove 202；It is fixed on the vertical end face of the rotating seat inner stopper platform 20
Rotating ring stop pin 22 is connected, cotter way 21a is provided on rotating ring 21 and rotating ring stop pin 22 cooperates.
Static components are by stationary ring 31, counterbalance spring 32, throw-out collar 33, sliding auxiliary seal ring 34, stationary ring stop pin 35, limit
Spring arch clasp 36 forms.
Stationary seat groove 30 is offered in the inboard bearing gland 10a of bearing housing 10, stationary ring 31 is slidably installed quiet
In ring seat groove 30, stationary ring stop pin 35 is equipped between 30 mating surface of periphery and stationary seat groove of stationary ring 31.
Throw-out collar 33 is slidably installed the right side of in stationary seat groove 30 stationary ring 31, opens up on the inner ring surface of throw-out collar 33
There is throw-out collar seal groove 331, the setting sliding auxiliary seal ring 34 in the throw-out collar seal groove 331.
Circle distribution offers several spring mounting holes 302 on the vertical end face of stationary seat groove 30, and counterbalance spring 32 is pacified
In the spring mounting hole 302 and pushes away and act on throw-out collar 33.
It is provided with limit spring snap ring 36 at 30 inner port of stationary seat groove, to prevent stationary ring 31 to be detached from stationary seat groove
30, by stationary ring 31, throw-out collar 33, the collection of counterbalance spring 32 in stationary seat groove 30.
Lubricating oil splash when work in bearing housing 10 can be from the inboard bearing gland 10a axis hole and the outer magnetic of pump of bearing housing 10
Gap between rotor axle sleeve 07b enters in mechanical seal inner cavity, the impurity in lubricating oil, is easy to produce in mechanical seal inner cavity
Raw collection is deposited, and impurity collection has been deposited and has been easily accessible sliding auxiliary seal ring 34, influences the sliding sealing for sliding auxiliary seal ring 34
Performance.
Therefore, it is provided with cascading water slot 102 in 101 lower part of inboard bearing gland 10a axis hole of bearing housing 10, so as to enter machine
Lubricating oil and impurity in tool sealing inner cavity smoothly flow back into bearing housing 10.
Dry gas formula mechanical seal is a kind of mechanically-sealing apparatus used for gas medium, at its quiet or dynamic friction ring end
Opened up on face it is dynamic carve slot, when dynamic friction ring and static friction ring relatively rotate, power, which carves slot and introduces a gas into sound friction, matches
End face is closed, axial thrust is generated and is pushed open ring is compensated, so that rotating ring is formed gap with stationary ring and is rotatably assorted, the yield of frictional heat is very
It is small, safe handling can be kept for a long time.
Although the design of dry gas formula mechanical seal is to use in liquid medium environment, together for air seal
Sample can achieve good sealing effect, only with respect to the sealing for being exclusively used in mechanical seal used in liquid medium body environment
Effect is weaker.
The utility model is structurally reasonable, compensates as stationary ring, the tracing ability of end face is good, can ensure that seal face is reliable and stable
It opens, runs smoothly, strong antijamming capability, good seal performance, long service life.
The utility model founds the inboard bearing gland 10a of end plate 07a and bearing housing 10 due to the axle sleeve in outer magnet rotor 07
Between be equipped with the mechanical seal of dry gas formula, drive shaft is sufficiently effectively sealed, the dry gas formula mechanical seal in no dielectric leakage
Idling conditions is in gaseous environment.When separation sleeve 06 leaks, when high-pressure medium is entered in 08 inner cavity of connection frame, using dry
The sealing performance of gas formula mechanical seal carries out mechanical seal to the medium leaked into 08 inner cavity of connection frame, prevents medium from passing through axis
It holds case 10 to leak into outside pump, reaches and carry out automatic secondary sealing in separation sleeve leakage.Pressure by being mounted in connection frame 08 again
Force snesor or liquid level sensor issue alarm signal, for field personnel's switchable pump, lead pump, maintenance strives for enough when
Between and smooth transition, further increase the property safe and reliable to operation of magnetic drive pump.
Detailed description of the invention
Fig. 1 is the utility model embodiment structural schematic diagram.
Fig. 2 is Fig. 1 partial enlarged view, principal representation dry gas formula mechanical seal structure.
Fig. 3 is the A-A cross-sectional view of Fig. 2.
Specific embodiment
The utility model magnetic drive pump include the pump housing 01, pump cover 02, pump shaft 03, impeller 04, interior magnet rotor 05, separation sleeve 06,
Outer magnet rotor 07, connection frame 08, drive shaft 09, bearing housing 10, separation sleeve 06 are sealedly and fixedly connected with pump cover 02, bearing housing 10 with
Connection frame 08 sealing docking or be integrally formed, be mounted on the interior magnet rotor 05 on pump shaft 03 in separation sleeve 06 be fixedly mounted
07 mating band pump shaft 03 of outer magnet rotor rotation on 06 outer drive shaft of separation sleeve, 09 shaft end；It is characterized in that in outer magnet rotor 07
Axle sleeve stand the end plate 07a and inboard bearing gland 10a of bearing housing 10 between be equipped with dry gas formula mechanically-sealing apparatus.
Dry gas formula mechanically-sealing apparatus, including moving ring assembly, static components.
Moving ring assembly is made of rotating ring 21, rotating ring stop pin 22, auxiliary seal ring 23.
The axle sleeve of magnet rotor 07 stands and offers rotating seat inner stopper platform 20 on end plate 07a outside magnetic drive pump, and rotating ring 21 is embedded in
On the rotating seat inner stopper platform 20, sealing is offered on the axial end face 201 of the rotating seat inner stopper platform 20
Auxiliary seal ring 23 is arranged in slot 202 in the seal groove 202；It is fixed on the vertical end face of the rotating seat inner stopper platform 20
Rotating ring stop pin 22 is connected, cotter way 21a is provided on rotating ring 21 and rotating ring stop pin 22 cooperates, the anti-relatively outer magnetic of locating snap ring 21 turns
The axle sleeve of son founds end plate 07a and generates rotation.
Static components are by stationary ring 31, counterbalance spring 32, throw-out collar 33, sliding auxiliary seal ring 34, stationary ring stop pin 35, limit
Spring arch clasp 36 forms.
Stationary seat groove 30 is offered in the inboard bearing gland 10a of bearing housing 10, stationary ring 31 is slidably installed quiet
In ring seat groove 30, stationary ring stop pin 35 is equipped between 30 mating surface of periphery and stationary seat groove of stationary ring 31.
Throw-out collar 33 is slidably installed the right side of in stationary seat groove 30 stationary ring 31, opens up on the inner ring surface of throw-out collar 33
There is seam allowance throw-out collar seal groove 331, the setting sliding auxiliary seal ring 34 in the throw-out collar seal groove 331.
Circle distribution offers several spring mounting holes 302 on the vertical end face of stationary seat groove 30, and counterbalance spring 32 is pacified
In the spring mounting hole 302 and pushes away and act on throw-out collar 33.
It is provided with limit spring snap ring 36 at 30 inner port of stationary seat groove, to prevent stationary ring 31 and stationary ring stop pin 35
It is detached from stationary seat groove 30, and by stationary ring 31, throw-out collar 33, the collection of counterbalance spring 32 in stationary seat groove 30.
It is provided with cascading water slot 102 in 101 lower part of inboard bearing gland 10a axis hole of bearing housing 10, so as to enter mechanical close
Lubricating oil and impurity in envelope inner cavity smoothly flow back into bearing housing 10.
Claims (1)
1. secondary seal magnetic drive pump, including the pump housing, pump cover, pump shaft, impeller, interior magnet rotor, separation sleeve, outer magnet rotor, connection frame,
Drive shaft, bearing housing, separation sleeve are sealedly and fixedly connected with pump cover, and bearing housing is docked or is integrally formed with connection frame sealing, pacify
Interior magnet rotor on pump shaft is matched in separation sleeve with the outer magnet rotor being fixedly mounted on separation sleeve outer drive shaft shaft end
Crossed belt pump shaft rotation, it is characterized in that the axle sleeve in outer magnet rotor is stood between end plate (07a) and the inboard bearing gland (10a) of bearing housing
Equipped with dry gas formula mechanical seal；
Dry gas formula mechanical seal, including moving ring assembly, static components；
Moving ring assembly is made of rotating ring (21), rotating ring stop pin (22), auxiliary seal ring (23)；
The axle sleeve of magnet rotor stands and offers rotating seat inner stopper platform (20) on end plate (07a) outside magnetic drive pump, and rotating ring (21) is embedded in
On the rotating seat inner stopper platform (20), opened up on the axial end face (201) of the rotating seat inner stopper platform (20)
There are seal groove (202), auxiliary seal ring (23) are set in the seal groove (202)；In the rotating seat inner stopper platform (20)
Vertical end face on be fixedly connected with rotating ring stop pin (22), cotter way (21a) is provided on rotating ring (21) and is matched with rotating ring stop pin (22)
It closes；
Static components are by stationary ring (31), counterbalance spring (32), throw-out collar (33), sliding auxiliary seal ring (34), stationary ring stop pin
(35), limit spring snap ring (36) forms；
It is offered stationary seat groove (30) in the inboard bearing gland (10a) of bearing housing (10), stationary ring (31) is slidably installed
In stationary seat groove (30), stationary ring stop pin is equipped between the periphery and stationary seat groove (30) mating surface of stationary ring (31)
(35)；
Throw-out collar (33) is slidably installed the right side of in stationary seat groove (30) stationary ring (31), on the inner ring surface of throw-out collar (33)
Throw-out collar seal groove (331) are offered, setting sliding auxiliary seal ring (34) in the throw-out collar seal groove (331)；
Circle distribution offers several spring mounting holes (302) on the vertical end face of stationary seat groove (30), counterbalance spring (32)
It is mounted in the spring mounting hole (302) and pushes away and act on throw-out collar (33)；
Limit spring snap ring (36) are provided at stationary seat groove (30) inner port, it is recessed to prevent stationary ring (31) to be detached from stationary seat
Slot (30), by stationary ring (31), throw-out collar (33), counterbalance spring (32) collection in stationary seat groove (30)；
Cascading water slot (102) are provided in inboard bearing gland (10a) axis hole (101) lower part of bearing housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185834.0U CN209539569U (en) | 2018-12-20 | 2018-12-20 | Secondary seal magnetic drive pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822185834.0U CN209539569U (en) | 2018-12-20 | 2018-12-20 | Secondary seal magnetic drive pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209539569U true CN209539569U (en) | 2019-10-25 |
Family
ID=68265871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822185834.0U Active CN209539569U (en) | 2018-12-20 | 2018-12-20 | Secondary seal magnetic drive pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209539569U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848141A (en) * | 2019-11-07 | 2020-02-28 | 江苏方时远略科技咨询有限公司 | Magnetic centrifugal pump with good sealing structure |
| CN114411886A (en) * | 2022-01-25 | 2022-04-29 | 重庆昕晟环保科技有限公司 | Secondary water supply anti-backflow device |
-
2018
- 2018-12-20 CN CN201822185834.0U patent/CN209539569U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110848141A (en) * | 2019-11-07 | 2020-02-28 | 江苏方时远略科技咨询有限公司 | Magnetic centrifugal pump with good sealing structure |
| CN114411886A (en) * | 2022-01-25 | 2022-04-29 | 重庆昕晟环保科技有限公司 | Secondary water supply anti-backflow device |
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