CN204200660U - Centrifugal pump running shaft sleeve sealing device - Google Patents
Centrifugal pump running shaft sleeve sealing device Download PDFInfo
- Publication number
- CN204200660U CN204200660U CN201420583365.7U CN201420583365U CN204200660U CN 204200660 U CN204200660 U CN 204200660U CN 201420583365 U CN201420583365 U CN 201420583365U CN 204200660 U CN204200660 U CN 204200660U
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- CN
- China
- Prior art keywords
- rotating shaft
- pump
- coupling
- sleeve
- sealing
- 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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a kind of centrifugal pump running shaft sleeve sealing device, its technological scheme is: the top mounted pump skull of frame, the bottom of frame connects outer sleeve, the bottom of described outer sleeve connects the pump housing, the inside of outer sleeve is provided with middle chamber, middle chamber inside is provided with rotating shaft, impeller is fixed in described rotating shaft, one end of rotating shaft is bolted on the inwall of the pump housing, the other end of rotating shaft connects coupling through pump head lid, the external stability coupling outer cover of coupling, described pump head lid and the joint of rotating shaft are provided with sealing axle sleeve; The beneficial effects of the utility model are: sealing axle sleeve realizes the excellent sealing of axis of rotation, good sealing effect, anti-vibration effective, good airproof performance during axis of rotation, greatly improve production effect, the application of high carbon steel and superpower composite makes product pressure-bearing high, and applicable model is admittedly wide, and environmental suitability is strong, extend working life and the repair cycle of part, improve pump performance.
Description
Technical field
The utility model relates to a kind of centrifugal pump seal equipment, particularly a kind of centrifugal pump running shaft sleeve sealing device.
Background technique
Centrifugal pump is generally driven by motor, before startup pump, is full of liquid in the pump housing and suction line.When impeller High Rotation Speed, impeller drives interlobate liquid to rotate together, and due to the effect of centrifugal force, liquid is thrown toward impeller outer edge from impeller central, and kinetic energy also increases thereupon.After liquid enters pump case, because the runner in volute shaped pump casing expands gradually, flow rate of liquid reduces gradually, and a part of kinetic energy is static energy, so liquid flows out along exhaust port with higher pressure.Meanwhile, impeller central place forms certain vacuum because liquid is thrown out of, and the pressure at liquid level place is higher than impeller central place, and therefore, the liquid of suction line enters in pump under differential pressure action.Impeller does not stop to rotate, and liquid is also continuously inhaled into and extrudes.
The sealing problem of centrifugal pump is the key factor determining its technical performance quality efficiency, in order to ensure that centrifugal pump normally works, must change filler in time.Current Problems existing is: because leaking appears in the reason of mechanical seal in centrifugal pump working procedure, cause serious harm to device and personal safety, shorten working life and the repair cycle of part, affect pump performance.
Summary of the invention
The purpose of this utility model is exactly in view of the foregoing defects the prior art has, provides a kind of centrifugal pump running shaft sleeve sealing device.
Its technological scheme is: comprise frame, pump head lid, outer sleeve, the pump housing, rotating shaft, impeller, middle chamber, bolt, coupling, coupling outer cover, sealing axle sleeve, the top mounted pump skull of frame, the bottom of frame connects outer sleeve, the bottom of described outer sleeve connects the pump housing, the inside of outer sleeve is provided with middle chamber, middle chamber inside is provided with rotating shaft, impeller is fixed in described rotating shaft, one end of rotating shaft is bolted on the inwall of the pump housing, the other end of rotating shaft connects coupling through pump head lid, the external stability coupling outer cover of coupling, described pump head lid and the joint of rotating shaft are provided with sealing axle sleeve.
Described sealing axle sleeve comprises lock tube and cutting ferrule, the front-end face of cutting ferrule is circular arc joint, the ear end face conical fittings of cutting ferrule, the described outer arced surface of circular arc joint matches with the intrados of lock tube, conical fittings matches with pump head lid, the centre of described cutting ferrule is provided with gap slotted eye, and the inside of described gap slotted eye is provided with sealed packing.
The beneficial effects of the utility model are: sealing axle sleeve realizes the excellent sealing of axis of rotation, good sealing effect, anti-vibration effective, good airproof performance during axis of rotation, greatly improve production effect, the application of high carbon steel and superpower composite makes product pressure-bearing high, and applicable model is admittedly wide, and environmental suitability is strong, extend working life and the repair cycle of part, improve pump performance.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is structural representations of sealing axle sleeve;
In upper figure: frame 1, pump head lid 2, outer sleeve 3, the pump housing 4, rotating shaft 5, impeller 6, middle chamber 7, bolt 8, coupling 9, coupling outer cover 10, sealing axle sleeve 11, lock tube 11.1, cutting ferrule 11.2, circular arc joint a, conical fittings b, gap slotted eye c.
Embodiment
1-2 by reference to the accompanying drawings, the utility model will be further described:
The utility model comprises frame 1, pump head lid 2, outer sleeve 3, the pump housing 4, rotating shaft 5, impeller 6, middle chamber 7, bolt 8, coupling 9, coupling outer cover 10, sealing axle sleeve 11, the top mounted pump skull 2 of frame 1, the bottom of frame 1 connects outer sleeve 3, the bottom of described outer sleeve 3 connects the pump housing 4, the inside of outer sleeve 3 is provided with middle chamber 7, middle chamber 7 inside is provided with rotating shaft 5, impeller 6 is fixed in described rotating shaft 5, one end of rotating shaft 5 is connected to by bolt 8 on the inwall of the pump housing 4, the other end of rotating shaft 5 connects coupling 9 through pump head lid 2, the external stability coupling outer cover 10 of coupling 9, described pump head lid 2 is provided with sealing axle sleeve 11 with the joint of rotating shaft 5.
Preferred sealing axle sleeve 11 comprises lock tube 11.1 and cutting ferrule 11.2, the front-end face of cutting ferrule 11.2 is circular arc joint a, the ear end face conical fittings b of cutting ferrule 11.2, the outer arced surface of described circular arc joint a matches with the intrados of lock tube 11.1, conical fittings b matches with pump head lid 2, the centre of described cutting ferrule 11.2 is provided with gap slotted eye c, and the inside of described gap slotted eye c is provided with sealed packing.
Working principle: the sealing problem of centrifugal pump is the key factor determining its technical performance quality efficiency, in order to ensure that centrifugal pump normally works, the excellent sealing of axis of rotation is realized, good sealing effect, anti-vibration effective, good airproof performance during axis of rotation by installing sealing axle sleeve additional, greatly improve production effect, the application of high carbon steel and superpower composite makes product pressure-bearing high, and applicable model is admittedly wide, and environmental suitability is strong, extend working life and the repair cycle of part, improve pump performance.
Claims (2)
1. a centrifugal pump running shaft sleeve sealing device, it is characterized in that: comprise frame, pump head lid, outer sleeve, the pump housing, rotating shaft, impeller, middle chamber, bolt, coupling, coupling outer cover, sealing axle sleeve, the top mounted pump skull of frame, the bottom of frame connects outer sleeve, the bottom of described outer sleeve connects the pump housing, the inside of outer sleeve is provided with middle chamber, middle chamber inside is provided with rotating shaft, impeller is fixed in described rotating shaft, one end of rotating shaft is bolted on the inwall of the pump housing, the other end of rotating shaft connects coupling through pump head lid, the external stability coupling outer cover of coupling, described pump head lid and the joint of rotating shaft are provided with sealing axle sleeve.
2. centrifugal pump running shaft sleeve sealing device according to claim 1, it is characterized in that: described sealing axle sleeve comprises lock tube and cutting ferrule, the front-end face of cutting ferrule is circular arc joint, the ear end face conical fittings of cutting ferrule, the described outer arced surface of circular arc joint matches with the intrados of lock tube, conical fittings matches with pump head lid, and the centre of described cutting ferrule is provided with gap slotted eye, and the inside of described gap slotted eye is provided with sealed packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583365.7U CN204200660U (en) | 2014-10-10 | 2014-10-10 | Centrifugal pump running shaft sleeve sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420583365.7U CN204200660U (en) | 2014-10-10 | 2014-10-10 | Centrifugal pump running shaft sleeve sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204200660U true CN204200660U (en) | 2015-03-11 |
Family
ID=52658624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420583365.7U Expired - Fee Related CN204200660U (en) | 2014-10-10 | 2014-10-10 | Centrifugal pump running shaft sleeve sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204200660U (en) |
-
2014
- 2014-10-10 CN CN201420583365.7U patent/CN204200660U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20150311 Termination date: 20151010 |
|
| EXPY | Termination of patent right or utility model |