CN204327572U - Axial subdivision two end supports centrifugal pump interstage sealing device - Google Patents

Axial subdivision two end supports centrifugal pump interstage sealing device Download PDF

Info

Publication number
CN204327572U
CN204327572U CN201420725410.8U CN201420725410U CN204327572U CN 204327572 U CN204327572 U CN 204327572U CN 201420725410 U CN201420725410 U CN 201420725410U CN 204327572 U CN204327572 U CN 204327572U
Authority
CN
China
Prior art keywords
internal liner
pump
boss
pump housing
sealing device
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 - Fee Related
Application number
CN201420725410.8U
Other languages
Chinese (zh)
Inventor
左传玺
许长征
韦尚鹏
魏红满
周宏�
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LIAONING CHANGZHI PUMP Co Ltd
Original Assignee
LIAONING CHANGZHI PUMP Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by LIAONING CHANGZHI PUMP Co Ltd filed Critical LIAONING CHANGZHI PUMP Co Ltd
Priority to CN201420725410.8U priority Critical patent/CN204327572U/en
Application granted granted Critical
Publication of CN204327572U publication Critical patent/CN204327572U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of axial subdivision two end supports centrifugal pump interstage sealing device, its feature structure be separate two impellers be contained on pump shaft by spacer tail end outer rim on impeller port ring is housed, between the choma outer and pump housing, internal liner is housed; Circumferentially being furnished with of internal liner prevents its slewing circle pin; It is characterized in that internal liner is provided with boss, the pump housing is provided with the groove with the boss Spielpassung on internal liner.Utilize the pressure that impeller produces, formed by boss and groove side and seal, serve good sealing effect, effectively prevent high-pressure medium washing away the pump housing and pump cover and rotor part, extend the working life of pump.This apparatus structure is simple, and easy to process, cost of production is low.

Description

Axial subdivision two end supports centrifugal pump interstage sealing device
One, technical field
The utility model relates to mechanical engineering pump class technical field, specifically a kind of axial subdivision two end supports centrifugal pump interstage sealing device.
Two, background technique
At present, China's axial subdivision two end supports centrifugal pump interstage sealing structure is varied, but wherein has the sealing effect of a lot of structure bad, causes that housing washes away seriously, working life is short; Also certain structures complexity not easily realizes, and causes the increase of cost of production and the reduction of work efficiency.
Three, summary of the invention
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide that a kind of cost is low, the axial subdivision two end supports centrifugal pump interstage sealing device of good sealing effect.
Realizing the technological scheme that the utility model object adopts is: this interstage sealing device is formed primarily of the pump housing, impeller, internal liner, straight pin, impeller port ring; The tail end outer rim separating two impellers be contained on pump shaft by spacer is equipped with impeller port ring, between the choma outer and pump housing, internal liner is housed; Circumferentially being furnished with of internal liner prevents its slewing circle pin; It is characterized in that internal liner is provided with boss, the pump housing is provided with the groove with the boss Spielpassung on internal liner.The pressure utilizing impeller to produce, by boss and groove lateral surface compressing, by coordinating formation sealing surface to stop liquid in inter-stage channelling, realizes excellent sealing.
The beneficial effects of the utility model are: utilize the pressure that impeller produces, formed by boss and groove side and seal, serve good sealing effect, effectively prevent high-pressure medium washing away the pump housing and pump cover and rotor part, extend the working life of pump.This apparatus structure is simple, and easy to process, cost of production is low.
Four, accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is the sectional structure chart of the utility model axial subdivision two end supports centrifugal pump interstage sealing device.
In figure: 1. impeller, the 2. pump housing, 3. straight pin, 4. internal liner, 5. impeller port ring.
Five, embodiment
In the accompanying drawings, the utility model axial subdivision two end supports centrifugal pump interstage sealing device is formed primarily of the pump housing, impeller, internal liner, straight pin, impeller port ring; The tail end outer rim separating two impellers 1 be contained on pump shaft by spacer is equipped with impeller port ring 5, between the choma 5 outer and pump housing 2, internal liner 4 is housed; Circumferentially being furnished with of internal liner 4 prevents its slewing circle pin 3, and straight pin 3 one end is fixed on internal liner 4, and the other end is positioned at the pump housing; It is characterized in that internal liner 4 is provided with boss 6, the pump housing 2 is provided with the groove 7 with boss 6 Spielpassung on internal liner.Boss and groove are all processed, and both sides have certain processing degree of finish, slightly gap when boss and groove side-fit.

Claims (2)

1. an axial subdivision two end supports centrifugal pump interstage sealing device, seal arrangement is made up of the pump housing, impeller, internal liner, straight pin, impeller port ring; The tail end outer rim separating two impellers (1) be contained on pump shaft by spacer is equipped with impeller port ring (5), and choma (5) is equipped with internal liner (4) outward and between the pump housing (2); Circumferentially being furnished with of internal liner (4) prevents its slewing circle pin (3); It is characterized in that: internal liner (4) is provided with boss (6), the pump housing (2) is provided with the groove (7) with boss (6) Spielpassung on internal liner.
2. axial subdivision two end supports centrifugal pump interstage sealing device according to claim 1, it is characterized in that: boss (6) and groove (7) both sides have certain processing degree of finish, slightly gap when boss (6) and groove (7) side-fit.
CN201420725410.8U 2014-11-20 2014-11-20 Axial subdivision two end supports centrifugal pump interstage sealing device Expired - Fee Related CN204327572U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420725410.8U CN204327572U (en) 2014-11-20 2014-11-20 Axial subdivision two end supports centrifugal pump interstage sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420725410.8U CN204327572U (en) 2014-11-20 2014-11-20 Axial subdivision two end supports centrifugal pump interstage sealing device

Publications (1)

Publication Number Publication Date
CN204327572U true CN204327572U (en) 2015-05-13

Family

ID=53163939

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420725410.8U Expired - Fee Related CN204327572U (en) 2014-11-20 2014-11-20 Axial subdivision two end supports centrifugal pump interstage sealing device

Country Status (1)

Country Link
CN (1) CN204327572U (en)

Similar Documents

Publication Publication Date Title
CN203594474U (en) Pneumatic motor with rotation impeller
CN205136040U (en) Horizontal single -stage centrifugal pump
CN201982359U (en) Wear ring sealing structure of multistage centrifugal pump
CN204327572U (en) Axial subdivision two end supports centrifugal pump interstage sealing device
CN103511336A (en) Efficient energy-saving water pump
CN103307253A (en) Improved gear
CN204327506U (en) First stage impeller double-sucking type axial subdivision two end supports multistage centrifugal pump
CN203560151U (en) Auxiliary impeller and slurry pump
CN203717428U (en) Centrifugal pump with rubber ring
CN203548317U (en) L-shaped sealing ring structure for pump shell of centrifugal pump
CN203023108U (en) Labyrinth seal
CN202851437U (en) Friction seal device for pump
CN202900789U (en) Novel floating opening ring structure
CN205036592U (en) Chemical industry mixed flow pump
CN204299860U (en) A kind of internal messing water pump
CN203962492U (en) A kind of impeller housing structure of Novel belt wear ring
CN204253430U (en) A kind of mechanical seal structure
CN204327505U (en) First stage impeller double-sucking type radial subdivision two end supports multistage centrifugal pump
CN204025669U (en) A kind of novel sealing structure
CN202417968U (en) Improved water-ring vacuum pump
CN204402890U (en) Oil spout supercharging rotor of helical lobe compressor
CN203685696U (en) Centrifugal pump with improved mechanical seal cooling structure
CN202883363U (en) Novel high pressure pump
CN204253450U (en) Axial subdivision two end supports Multistage centrifugal pump interstage flow distribution plate
CN204419675U (en) A kind of sealing ring for centrifugal pump

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150513

Termination date: 20171120