CN201517507U - Sterile-type centrifugal pump - Google Patents
Sterile-type centrifugal pump Download PDFInfo
- Publication number
- CN201517507U CN201517507U CN200920302244XU CN200920302244U CN201517507U CN 201517507 U CN201517507 U CN 201517507U CN 200920302244X U CN200920302244X U CN 200920302244XU CN 200920302244 U CN200920302244 U CN 200920302244U CN 201517507 U CN201517507 U CN 201517507U
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- pump
- impeller
- end socket
- 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
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model proposes a sterile-type centrifugal pump, provided with a motor, a pump shaft, a pump base, an inner closing end, an impeller and an outer closing end, wherein the impeller is provided with a downwardly-extending cylindrical axle sleeve, the impeller is sleeved outside the pump shaft, an extension export of the pump shaft is provided on the inner closing end, a plunger ring is arranged on external side of the pump shaft, pump shaft extension export of the inner closing end is provided with a stationary ring surrounding its export, a movable ring is provided on the plunger ring adjacent to the upper end of the inner closing end, the movable ring in sealing slidable connection to the stationary ring, a sealed ring is provided between the movable ring and the impeller axle sleeve, and the sealed ring is in sealing clinging to the inside wall surface of the movable ring and the external side wall surface of the impeller axle sleeve. The technical scheme of the utility model has simple structure, convenient disassembly, the mechanism is sealing design outside the pump chamber, to reduce dead angle of the pump chamber, to easier to clean every nook and corner in the pump chamber, to improve the sanitary character of the centrifugal pump, and to realize stationary fit sealing, thereby having favorable sealing effect.
Description
Technical field
The utility model relates to a kind of centrifugal pump, in particular, relates to a kind of sterile type centrifugal pump.
Background technique
Traditional sterile type centrifugal pump, generally comprise: motor, pump seat, pump shaft, mechanical seal, interior end socket, impeller and outer end socket, impeller is provided with the cylinder-shaped sleeve that stretch in the downward court of a feudal ruler, and impeller set is connected on the pump chamber that the pump shaft outside places interior end socket to become with the covering capitiform, pump shaft in the pump chamber, be provided with mechanical seal between interior end socket and the impeller, the pump shaft outside is provided with seal ring, be provided with mechanical sealing linkage ring, seal ring between seal ring and the interior end socket, interior end socket, combine with stationary ring on the impeller between the mechanical sealing linkage ring three, pass through seal ring, mechanical sealing linkage ring and mechanical sealing static ring form and seal movingly.Mechanical seal is located at moving indoor shortcoming: the dead angle is many, the remaining material of easy cleaning not, thereby influenced the health in the centrifugal pump pump chamber, and cause cavitation erosion that pump produces in the course of the work damage to mechanical seal, because by sealing movingly, seal ring can cause the wearing and tearing of seal ring in the long-term using process of centrifugal pump, make that the seal ring sealing effect is undesirable.
The model utility content
In view of above-mentioned the deficiencies in the prior art, the utility model is proposed.It is a kind of with the sterile type centrifugal pump of mechanical seal design outside pump chamber that the purpose of this utility model is to provide, in the hope of reaching the dead angle of reducing pump chamber, the every nook and cranny that easier washery pump is indoor, the purpose of the wholesomeness of raising centrifugal pump, and realize the stationary fit sealing, have more good sealing effect.
For reaching above-mentioned purpose, a kind of sterile type centrifugal pump of the utility model technological scheme is: be provided with motor, pump shaft, pump seat, interior end socket, impeller and outer end socket, impeller is provided with the cylinder-shaped sleeve of downward extension, impeller set is connected on the pump shaft outside, interior end socket is provided with the extending port of pump shaft, the pump shaft outside is provided with trim ring, it is characterized in that: end socket pump shaft extending port is provided with the stationary ring around its outlet in described, described trim ring is provided with rotating ring near interior end socket upper end, described rotating ring and the sealing of described stationary ring are slided, be provided with seal ring between described rotating ring and the impeller sleeve, rotating ring is provided with the boss to inner process, described seal ring respectively with described rotating ring interior sidewall surface, the impeller sleeve outer side surface, rotating ring boss downside wall is close to sealing.During centrifugal pump work, rotating ring and pump shaft rotate synchronously, and stationary ring is static relatively, and rotating ring upper surface and the sealing of stationary ring lower surface are slided, and rotating ring upper surface and stationary ring lower surface are all very smooth, and very high sealing is arranged when making rotating ring and stationary ring slide relative.Preferably, rotating ring is that graphite is made, and stationary ring is a stainless steel part.So be provided with, mechanical seal is designed outside pump chamber, reduce the dead angle of pump chamber, the every nook and cranny that easier washery pump is indoor, improve the wholesomeness of centrifugal pump, and seal ring rotates synchronously with rotating ring, impeller sleeve, reach stationary fit and seal, seal ring abrasion condition can not occur in the centrifugal pump working procedure, makes seal ring have good sealing effect for a long time.
A kind of sterile type centrifugal pump of the utility model is further set: end socket pump shaft extending port is provided with and the movable close-connected lip ring of this extending port inner side surface in described, and described stationary ring is by being clamped on the Sealing inboard with described Sealing interference fit.Sealing is made by carbofrax material, and seal outer surface is provided with screw thread, is connected with extending port inner side surface screw-thread fit.
A kind of sterile type centrifugal pump of the utility model is further set: described Sealing is provided with the boss inwardly outstanding with respect to the center, and described inwardly outstanding boss downside and described stationary ring compress sealing.Because rotating ring compresses mutually with stationary ring, by boss stationary ring is fixed in the Sealing, can not move up.
A kind of sterile type centrifugal pump of the utility model is further set: end socket pump shaft extending port is provided with outwards recessed ring-shaped step in described, described Sealing is provided with the outwards outstanding annular boss in relative center, the outwards outstanding boss lower wall surface of described step upper wall surface and described Sealing compresses and is tightly connected, and the outwards outstanding boss side wall surface of described step side wall surface and described Sealing compresses and is tightly connected.So be provided with, increased Sealing in the steadiness of interior end socket pump shaft extending port, increased the sealing between Sealing and the interior end socket pump shaft extending port.
A kind of sterile type centrifugal pump of the utility model is further set: end socket pump shaft extending port step upper end further is provided with outwards recessed ring-shaped step in described, this ring-shaped step is embedded with O-ring seal, described Sealing boss is provided with outwards outstanding annular nib, and described seal ring and described ring-shaped step upper side and described annular nib downside compress sealing.By setting like this, further increase sealing between Sealing and the interior end socket pump shaft extending port, to prevent that material is infiltrated in the pump seat by the slit between Sealing and the interior end socket pump shaft extending port in the pump chamber.
A kind of sterile type centrifugal pump of the utility model is also further set: described trim ring upper end external diameter is less than trim ring lower end external diameter, and less than the rotating ring internal diameter, the rotating ring lower end is socketed in the outside, described trim ring upper end, and the trim ring outside is provided with spring, and described rotating ring is close to sealing by described spring compression and stationary ring.The described trim ring outside is provided with annular nib, and the described rotating ring outside is provided with annular nib, described spring compression described trim ring chimb upper wall surface and rotating ring chimb lower wall surface.
A kind of sterile type centrifugal pump of the utility model is also further set: described impeller is provided with the back blades that is provided with twist, described impeller blade is corresponding to be the setting of star spiral, blade was excessive to the recessed arc in impeller center between each back blades back of the body fluid surface outer end and adjacent pair blade were met in the middle part of the fluid surface, the impeller back blades is met fluid surface and is circular arc, and the vertical width of back blades inwardly strengthens gradually from the outer end.So be provided with, reduced the cavitation erosion in the pump chamber, runner is more unobstructed, and impeller weight is lighter, rotates lighter.Described impeller blade is provided with the liquid circulation through hole, owing to leave the gap between impeller and the interior end socket, easy residual material in the gap, by the circulation through hole is set on blade, along with the rotation of impeller, the material between impeller and the interior end socket in the gap circulates it and can not remain in the gap.
A kind of sterile type centrifugal pump of the utility model technological scheme is simple in structure, with the sterile type centrifugal pump of mechanical seal design outside pump chamber, in the hope of reaching the dead angle of reducing pump chamber, the every nook and cranny that easier washery pump is indoor, improve the purpose of the wholesomeness of centrifugal pump, and realize the stationary fit sealing, have more good sealing effect.The utility model impeller more advances one one and has the cavitation erosion that has reduced in the pump chamber, and runner is more unobstructed, and the lighter effect of wheel rotation.
Description of drawings
Fig. 1 is the utility model sterile type centrifugal pump structure figure
Fig. 2 is the local amplification assumption diagram in A place among Fig. 1
Fig. 3 is the utility model blade wheel structure figure
Among the figure:
1: motor, 2: pump cover, 3: pump seat, 4: pump shaft, 5: interior end socket, 6: outer end socket, 7: impeller, 8: stationary ring, 9: Sealing, 10: stationary ring seal ring, 11: rotating ring, 12: seal ring of moving ring, 13: spring, 14: trim ring, 15: pin 701: impeller blade, 702: impeller back blades, 703: the circulation through hole
Embodiment
Below in conjunction with Figure of description structure of the present utility model is further described:
Referring to Figure of description 1, a kind of sterile type centrifugal pump that the utility model provides is provided with: motor 1, pump cover 2, pump seat 3, pump shaft 4, interior end socket 5, outer end socket 6, impeller 7, outer end socket is provided with material inlet and outlet, material inlet adopts 90 degree vertical design with outlet, to reduce the material remnant amount in the pump chamber, interior end socket 5 and outer end socket 6 component material pump chambers, interior end socket 5 is provided with the pump shaft extending port, pump shaft 4 puts in pump chamber by interior end socket pump shaft extending port from pump seat 3, impeller 7 is provided with the cylinder-shaped sleeve of downward extension, impeller 7 is socketed in pump shaft 4 outsides, impeller sleeve is stretched in the pump seat 3 by interior end socket pump shaft extending port, pump shaft 4 outsides are provided with trim ring 14, and trim ring 14 is fixedlyed connected with pump shaft 4 by pin 15.
Referring to Figure of description 2, constitute mechanical sealing mechanism by stationary ring 8, Sealing 9, stationary ring seal ring 10, rotating ring 11, seal ring of moving ring 12, spring 13, trim ring 14.
Interior end socket pump shaft extending port is provided with the stationary ring 8 around its outlet, and trim ring 14 is provided with rotating ring 11 near interior end socket upper end, and rotating ring 11 slides with stationary ring 8 sealings.During centrifugal pump work, rotating ring 11 rotates synchronously with pump shaft 4, end socket pump shaft extending port inboard was static relatively in stationary ring 8 was fixed on, rotating ring 11 upper surfaces and the sealing of stationary ring 8 lower surfaces are slided, rotating ring upper surface and stationary ring lower surface are all very smooth, and very high sealing is arranged when making rotating ring and stationary ring slide relative.Preferably, rotating ring is that graphite is made, and stationary ring is a stainless steel part.
Be provided with seal ring 12 between rotating ring 11 and the impeller sleeve, rotating ring 11 is provided with the boss to inner process, and seal ring 12 is close to sealing with rotating ring 11 interior sidewall surface, impeller 7 axle sleeve outer side surfaces, rotating ring 11 boss downside walls respectively.So be provided with, seal ring 12 rotates synchronously with rotating ring 11, impeller 7 axle sleeves, reaches the stationary fit sealing, and seal ring 12 abrasion condition can not occur in the centrifugal pump working procedure, makes seal ring have good sealing effect for a long time.
Interior end socket pump shaft extending port is provided with and the movable close-connected lip ring 9 of this extending port inner side surface, and stationary ring 8 is by being clamped on Sealing 9 inboards with Sealing 9 madial wall interference fit.Preferably, Sealing 9 is made by carbofrax material, and Sealing 9 outer surfaces are provided with screw thread, are connected with interior end socket 5 pump shaft extending port inner side surface screw-thread fit.Sealing 9 is provided with the boss inwardly outstanding with respect to the center, and inwardly outstanding boss downside and described stationary ring 8 compress sealing.Because rotating ring 11 compresses mutually with stationary ring 8, by boss stationary ring is fixed in the Sealing 9, can not move up.Interior end socket 5 pump shaft extending ports are provided with outwards recessed ring-shaped step, Sealing 9 is provided with the outwards outstanding annular boss in relative center, the outwards outstanding boss lower wall surface of interior end socket 5 step upper wall surfaces and Sealing 9 compresses and is tightly connected, and the outwards outstanding boss side wall surface of interior end socket 5 step side wall surfaces and Sealing 9 compresses and is tightly connected.So be provided with, increased Sealing in the steadiness of interior end socket pump shaft extending port, increased the sealing between Sealing 9 and the interior end socket 5 pump shaft extending ports.Interior end socket 5 pump shaft extending port steps upper end further is provided with outwards recessed ring-shaped step, this ring-shaped step is embedded with O-ring seal 10, Sealing 9 boss are provided with outwards outstanding annular nib, and seal ring 10 compresses sealing with ring-shaped step upper side and Sealing 9 annular nib downsides.By setting like this, further increase sealing between Sealing and the interior end socket pump shaft extending port, to prevent that material is infiltrated in the pump seat by the slit between Sealing and the interior end socket pump shaft extending port in the pump chamber.Easy to assembly for product, Sealing 9 is to the inner convex platform upside, be provided with outwards recessed step to the outer lug boss inboard, with the purpose of end socket 5 pump shaft mount inlets in end socket 5 pump shaft mount inlets in reaching that pump shaft 4 axle sleeves are easier and putting in and the Sealing 9 easier threadings.
Referring to Figure of description 3, impeller 7 is provided with the back blades 702 that is provided with twist, impeller blade 701 is corresponding to be the setting of star spiral, and blade was excessive to the recessed arc in impeller center between each back blades back of the body fluid surface outer end and adjacent pair blade were met in the middle part of the fluid surface.Back blades 702 vertical width inwardly strengthen gradually from the outer end.Impeller blade is provided with liquid circulation through hole 703.Preferably, the utility model embodiment impeller is provided with five blades and back blades, five circulation through holes of relative set on the blade.
" upper and lower " of the present utility model is downward with the centrifugal pump motor, and the position that outer end socket makes progress is that the reference position is described.
Claims (9)
1.1, a kind of sterile type centrifugal pump, be provided with: motor, pump shaft, pump seat, interior end socket, impeller and outer end socket, interior end socket constitutes pump chamber with outer end socket, interior end socket is provided with the pump shaft extending port, pump shaft reaches in the pump chamber in the court of a feudal ruler by interior end socket from pump seat always, impeller is provided with the cylinder-shaped sleeve of downward extension, impeller set is connected on the pump shaft outside, the pump shaft outside is provided with trim ring, it is characterized in that: described impeller sleeve stretches into pump seat by interior end socket pump shaft extending port, end socket pump shaft extending port is provided with the stationary ring around its outlet in described, described trim ring is provided with rotating ring near interior end socket upper end, described rotating ring and the sealing of described stationary ring slidably are provided with seal ring between described rotating ring and the impeller sleeve, described seal ring and described rotating ring interior sidewall surface, the impeller sleeve outer side surface is close to sealing.
2. sterile type centrifugal pump as claimed in claim 1 is characterized in that: described rotating ring upper end is provided with the boss to inner process, and described seal ring and rotating ring boss downside wall are close to sealing.
3. sterile type centrifugal pump as claimed in claim 1 or 2, it is characterized in that: end socket pump shaft extending port is provided with and the movable close-connected lip ring of this extending port inner side surface in described, and described stationary ring is by being clamped on the Sealing inboard with described Sealing inner side surface interference fit.
4. sterile type centrifugal pump as claimed in claim 3 is characterized in that: described Sealing is provided with the boss inwardly outstanding with respect to the center, and described inwardly outstanding boss downside and described stationary ring compress sealing.
5. sterile type centrifugal pump as claimed in claim 4, it is characterized in that: end socket pump shaft extending port is provided with outwards recessed ring-shaped step in described, described Sealing is provided with the outwards outstanding annular boss in relative center, the outwards outstanding boss lower wall surface of described step upper wall surface and described Sealing compresses and is tightly connected, and the outwards outstanding boss side wall surface of described step side wall surface and described Sealing compresses and is tightly connected.
6. sterile type centrifugal pump as claimed in claim 5, it is characterized in that: end socket pump shaft extending port step upper end further is provided with outwards recessed ring-shaped step in described, this ring-shaped step is embedded with O-ring seal, described Sealing boss is provided with outwards outstanding annular nib, and described seal ring and described ring-shaped step upper side and described annular nib downside compress sealing.
7. sterile type centrifugal pump as claimed in claim 1 or 2 is characterized in that: described
The rotating ring lower end is socketed in the outside, described trim ring upper end, and the trim ring outside is provided with spring, and described rotating ring of described spring compression and stationary ring are close to sealing.
8. sterile type centrifugal pump as claimed in claim 7 is characterized in that: the described trim ring outside is provided with annular boss, and the described rotating ring outside is provided with annular boss, described spring compression described trim ring boss upper wall surface and rotating ring boss lower wall surface.
9. sterile type centrifugal pump as claimed in claim 1 or 2, it is characterized in that: described impeller is provided with the back blades that is provided with twist, the impeller back blades is met fluid surface and is circular arc, described impeller blade is corresponding to be the setting of star spiral, blade was excessive to the recessed arc in impeller center between each back blades back of the body fluid surface outer end and adjacent pair blade were met in the middle part of the fluid surface, and described impeller blade is provided with the liquid circulation through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302244XU CN201517507U (en) | 2009-04-16 | 2009-04-16 | Sterile-type centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920302244XU CN201517507U (en) | 2009-04-16 | 2009-04-16 | Sterile-type centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517507U true CN201517507U (en) | 2010-06-30 |
Family
ID=42498229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920302244XU Expired - Fee Related CN201517507U (en) | 2009-04-16 | 2009-04-16 | Sterile-type centrifugal pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517507U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339240A (en) * | 2017-07-19 | 2017-11-10 | 谢运海 | A kind of automobile fire-fighting dedicated multilevel centrifugal pump |
| CN111954764A (en) * | 2018-04-11 | 2020-11-17 | 洛普兰机械设备有限公司 | Pump housing arrangement for a fluid pump and fluid pump |
-
2009
- 2009-04-16 CN CN200920302244XU patent/CN201517507U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107339240A (en) * | 2017-07-19 | 2017-11-10 | 谢运海 | A kind of automobile fire-fighting dedicated multilevel centrifugal pump |
| CN111954764A (en) * | 2018-04-11 | 2020-11-17 | 洛普兰机械设备有限公司 | Pump housing arrangement for a fluid pump and fluid pump |
| US11852146B2 (en) | 2018-04-11 | 2023-12-26 | Velcora Holding Ab | Pump housing device for a fluid pump, and a fluid pump |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207562989U (en) | A kind of soybean grinding device for preventing bean powder wall built-up | |
| CN106369213A (en) | Hydraulic rotary actuator for opening and closing butterfly valve | |
| CN201517507U (en) | Sterile-type centrifugal pump | |
| CN110270533A (en) | A kind of ear nail maintenance device | |
| CN208378866U (en) | A kind of sauce fermentor device | |
| CN107717757B (en) | Circulating suspension speed self-control polishing machine | |
| CN210196522U (en) | Spherical stop valve | |
| CN201513355U (en) | Aseptic self-sucking pump | |
| CN205794683U (en) | A kind of domestic automatic enemator | |
| CN205824208U (en) | A kind of hermetically sealed butterfly valve of novel big orifice | |
| CN206137976U (en) | High -speed food processor and vacuum mixing cup thereof | |
| CN209362008U (en) | Multistage filtering device is used in a kind of processing of lubricating oil | |
| CN204995291U (en) | Food preparation machine is with axle seal part and food preparation machine | |
| CN207102051U (en) | Soymilk filter device | |
| CN203830076U (en) | Table type ball mill | |
| CN207610225U (en) | A kind of waterproof labyrinth seal type dragveyer inner guide pulley | |
| CN205877256U (en) | Sanitary -grade arc valve | |
| CN208642431U (en) | Mixing stirring device is used in a kind of production of food additives | |
| CN204627980U (en) | Integrated sealing screw pump ground driving device | |
| CN209906804U (en) | Enzymolysis tank of hydrolyzed wheat protein powder | |
| CN205988697U (en) | Agitation device for preventing leakage for fluid chemical raw material storage tanks | |
| CN206462786U (en) | A kind of vertical type juicing machine wear-resisting screw rod and vertical screw juice extractor | |
| CN209173775U (en) | A kind of agitating shaft and the split type rabbling mechanism of driving motor | |
| CN203730786U (en) | Butterfly valve provided with multistep sealing | |
| CN207805188U (en) | Centrifugal oil foreign impurity matters test filter device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20130416 |