CN204267308U - Centrifugal sewage pump - Google Patents
Centrifugal sewage pump Download PDFInfo
- Publication number
- CN204267308U CN204267308U CN201420757228.0U CN201420757228U CN204267308U CN 204267308 U CN204267308 U CN 204267308U CN 201420757228 U CN201420757228 U CN 201420757228U CN 204267308 U CN204267308 U CN 204267308U
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- China
- Prior art keywords
- impeller
- pump
- pump housing
- front cover
- fixedly connected
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- Expired - Fee Related
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Abstract
The utility model discloses a kind of centrifugal sewage pump, mainly comprise the pump housing, pump shaft, impeller, mechanical seal, front cover, motor, bonnet and control system, it is characterized in that the impeller outer end face in the impeller cavity of the described pump housing and the distance between import are greater than the hub thickness of impeller, to make the gap between the pump housing and blade, there is major path cavity volume, major diameter particle can be passed through, described impeller is by wheel hub, the impeller plate and two helical blade compositions, the described impeller plate is fixed on wheel hub one end, on the impeller plate, Circle-Array shows two helical blades, described helical blade starting point is fixedly connected with wheel hub, bottom is fixed on impeller, it is corresponding with impeller plate outer rim that the spiral cambered surface of described helical blade crosses over three quadrant rearward ends by starting point along impeller plate perficial helical, there is total head No-mistake Principle characteristic, disassembling, assembling and replacing impeller, machine seals, more convenient and quicker during cable, sealing effect is better, complete machine stability is higher, life-span is longer, mounting type is versatile and flexible.
Description
Technical field
The utility model relates to mechanical engineering pump technical field, specifically a kind of centrifugal sewage pump.
Background technique
At present, existing centrifugal sewage pump is mainly made up of the pump housing, pump shaft, impeller, impeller nut, pump cover, connecting base, the non-integrated mechanical sealing of Double End, bearing, bearing gland, rotor, stator, casing, upper end cap, connector cover, cable, cable jam nut.It is not enough: one be the pump housing is screw type spiral case, blade wheel structure has blade type, single channel formula, double flow channel formula, although the blade type centrifugal pump passing capacity that this several structural rate is general is high, but it is limited, wherein single channel passing capacity relatively can be more better, but Procedure of Single-channel Pump is not easily cast, and the asymmetric waterpower caused of runner is uneven, even if it is very good that impeller dynamic balancing before armored pump is done, during pump operation, current are also asymmetric, easily produce vibration, noise, and even pump lost efficacy and cannot use; Though two blade impeller can solve single channel asymmetric bring unfavorable, the passing capacity of solid particle can reduce by half.Also the pump housing and the impeller of rotary flow type structure is had in existing product, but the structure of impeller is all Multi-vane type, be generally 5 ~ 8, even tens, and blade shape is prismatic blade, or there is a bit of antecurvature or palintrope at blade exit place, the comparatively mild power curve of flow lift characteristic curve of this structure pump rises very fast with changes in flow rate, easily occur overpower phenomenon.Two need dismantle the pump housing, pump cover, connecting base 4 or 6 connecting bolts when being and changing impeller, and waste time and energy, simultaneously mechanical seal also can loosen, and in oil pocket, lubricant oil also needs emptying in advance.Three is pump cover and connecting base composition sealing grease chamber, the non-integrated mechanical sealing of Double End or two independently single mechanical end face seals are provided with in grease chamber, installation is wasted time and energy, not easy to operate, need during the mechanical seal of user's spot replace to dismantle impeller, pump cover, machine envelope stationary ring, rotating ring and other part, dismounting piecemeal, complex steps.Four are motors is common submersible motor, and not easily cool, needing circulating water can cool, and motor cable wiring is comparatively loaded down with trivial details, needs to take connector cover apart and just can carry out wiring, be loaded on connector cover, cause operating procedure more after connecting when changing cable; Five is overall structures or for vertical, or be horizontal, and vertical crouching can not be changed mutually.
Summary of the invention
The purpose of this utility model solves above-mentioned the deficiencies in the prior art, provide a kind of novel structure, passing ability and non-destructive all better, reduce rate of depreciation, there is total head No-mistake Principle characteristic, disassembling, assembling and replacing impeller, machine envelope, cable time more convenient and quicker, sealing effect is better, complete machine stability is higher, the life-span is longer, the flexile centrifugal sewage pump of mounting type
The utility model solves the technological scheme that its technical problem adopts:
A kind of centrifugal sewage pump, mainly comprise the pump housing, pump shaft, impeller, mechanical seal, front cover, motor, bonnet and control system, it is characterized in that the impeller outer end face in the impeller cavity of the described pump housing and the distance between import are greater than the hub thickness of impeller, to make the gap between the pump housing and blade, there is major path cavity volume, major diameter particle can be passed through, described impeller is by wheel hub, the impeller plate and two helical blade compositions, the described impeller plate is fixed on wheel hub one end, on the impeller plate, Circle-Array shows two helical blades, described helical blade starting point is fixedly connected with wheel hub, bottom is fixed on impeller, it is corresponding with impeller plate outer rim that the spiral cambered surface of described helical blade crosses over three quadrant rearward ends by starting point along impeller plate perficial helical, to ensure by object without impeller channel, therefore not easily sustained damage by object, integrity is better, and impeller is not easy to wear yet, greatly improve its working life.
The pump housing of the present invention and front cover connecting end are respectively equipped with annular slot, the described pump housing and front cover to block mutually with annular slot through stainless steel lathe dog respectively and fix, described stainless steel lathe dog is relatively fixedly formed by two semi-circular clip bodies, described stainless steel lathe dog is by positioning ring, connecting ring and elasticity apical ring composition, described positioning ring two ends are vertical with connecting ring to be respectively fixedly connected with, the corresponding inner side of two connecting ring the other ends is fixedly connected with elasticity apical ring is vertical respectively, be beneficial to the pump housing and front cover clamping by elasticity apical ring, the effect being beneficial to reach quick mounting and dismounting is avoided need dismantling the pump housing when changing impeller, pump cover, the deficiency of connecting base 4 or 6 connecting bolts, simultaneously, also avoid mechanical seal to occur loosening in unloading process, in oil pocket, lubricant oil also needs the substance of emptying in advance not enough.
The present invention the pump shaft between front cover and impeller can have end cover by cover, described end cover and front cover are tightly connected and form sealing grease chamber, described sealing oil indoor are provided with unit loading type double mechanical seal, described double mechanical seal warp beam sleeve is connected with pump shaft, axle sleeve in the middle of described double mechanical seal is provided with baffle plate, when being beneficial to work, double mechanical seal is worked alone separately, even if media end seal failure, atmosphere end sealing also can not be affected, medium can not be seeped in the bearing chamber of motor and motor cavity and cause bearing, motor failure, therefore have quick and easy for installation, sealing is effect reliably, need when avoiding the mechanical seal of user's spot replace to dismantle impeller, pump cover, machine envelope stationary ring, the substance of rotating ring and other part is not enough.
The present invention can be provided with sewage acquisition sensor in sealing oil indoor; to leak in Seal cage grease chamber when there being sewage and after reaching certain proportion; acquisition sensor will be connected; send alarm signal; and upload control system; control system sends instruction and cuts off pump power power supply, thus therefore protection bearing, motor can not damage.
The present invention can be provided with radiating fin in the motor casing outside of described motor, and with auxiliary heat dissipation, described cable joining adopts ready-packaged joint, to reach effect easy for installation.
The present invention also can be provided with supporting leg and support, and described motor tail end is fixedly connected with supporting leg top, and the flange of described pump housing entrance point is fixedly connected with support, with the function making the present invention have horizontal-vertical double-purpose.
The present invention owing to adopting said structure, such that this pump structure is novel, passing ability and non-destructive all better, reduce rate of depreciation, there is total head No-mistake Principle characteristic, disassembling, assembling and replacing impeller, machine envelope, cable time more convenient and quicker, sealing effect is better, complete machine stability is higher, the life-span is longer, mounting type is versatile and flexible.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of complete machine of the present invention.
Fig. 2 is the structural representation of described impeller.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the structure for amplifying schematic diagram at middle I place of the present invention.
Reference character: the pump housing 1, pump shaft 2, impeller 3, mechanical seal 4, front cover 5, motor 6, bonnet 7, wheel hub 8, the impeller plate 9, helical blade 10, stainless steel lathe dog 11, positioning ring 12, connecting ring 13, elasticity apical ring 14, end cover 15, axle sleeve 16, baffle plate 17, acquisition sensor 18, ready-packaged joint 19, supporting leg 20, support 21.
Embodiment
Below in conjunction with specific embodiment, the utility model is further illustrated:
As shown in Figure 1, a kind of centrifugal sewage pump, mainly comprise the pump housing 1, pump shaft 2, impeller 3, mechanical seal 4, front cover 5, motor 6, bonnet 7 and control system, the described pump housing 1 is fixedly connected with motor 6 through front cover 5, described motor 6 rear end is fixedly connected with bonnet 7, impeller cavity is provided with in the described pump housing 1, the described pump housing 1 is axially arranged with liquid entering hole, radial direction is provided with sewage draining exit, described impeller cavity is connected with sewage draining exit respectively at liquid entering hole, described pump shaft 2 is fixedly connected with the impeller 3 in impeller cavity through one end, front cover 5 center, the other end is fixedly connected with motor shaft, pump shaft between described front cover 5 and impeller 3 is provided with mechanical seal 4, described motor 6 controls through control system, it is characterized in that the impeller outer end face in the impeller cavity of the described pump housing 1 and the distance between import are greater than the hub thickness of impeller, to make the gap between the pump housing 1 and impeller 3, there is major path cavity volume, major diameter particle can be passed through, described impeller 3 is by wheel hub 8, the impeller plate 9 and two helical blades 10 form, the described impeller plate 9 is fixed on wheel hub 8 one end, on the impeller plate 9, Circle-Array shows two helical blades 10, described helical blade 10 starting point is fixedly connected with wheel hub 8, bottom is fixed on the impeller plate 9 surface, it is corresponding with the impeller plate 9 outer rim that the spiral cambered surface of described helical blade 10 crosses over three quadrant rearward ends by starting point along the impeller plate 9 perficial helical, to ensure by object without impeller channel, therefore not easily sustained damage by object, integrity is better, and impeller is not easy to wear yet, greatly improve its working life.
The pump housing 1 of the present invention and front cover 5 connecting end are respectively equipped with annular slot, the described pump housing 1 and front cover 5 to block mutually with annular slot through stainless steel lathe dog 11 respectively and fix, described stainless steel lathe dog 11 is relatively fixedly formed by two semi-circular clip bodies, described stainless steel lathe dog is by positioning ring 12, connecting ring 13 and elasticity apical ring 14 form, described positioning ring 12 two ends are fixedly connected with connecting ring 13 is vertical respectively, the corresponding inner side of two connecting ring 13 the other ends is fixedly connected with elasticity apical ring 14 is vertical respectively, be beneficial to by elasticity apical ring 14, the pump housing 1 and front cover 5 be held out against, the effect being beneficial to reach quick mounting and dismounting is avoided need dismantling the pump housing 1 when changing impeller, front cover 5, the deficiency of 4 or 6 connecting bolts on connecting base, simultaneously, also avoid mechanical seal to occur loosening in unloading process, in oil pocket, lubricant oil also needs the substance of emptying in advance not enough.
The present invention the pump shaft 2 between front cover 5 and impeller 3 can have end cover 15 by cover, described end cover 15 and front cover 5 are tightly connected and form sealing grease chamber, described sealing oil indoor are provided with unit loading type double mechanical seal 4, described double mechanical seal 4 warp beam sleeve 16 is connected with pump shaft, axle sleeve 16 in the middle of described double mechanical seal 4 is provided with baffle plate 17, when being beneficial to work, double mechanical seal is worked alone separately, even if media end seal failure, atmosphere end sealing also can not be affected, medium can not be seeped in the bearing chamber of motor and motor cavity and cause bearing, motor failure, therefore have quick and easy for installation, sealing is effect reliably, need when avoiding the mechanical seal of user's spot replace to dismantle impeller, pump cover, machine envelope stationary ring, the substance of rotating ring and other part is not enough.
The present invention can be provided with sewage acquisition sensor 18 in described sealing oil indoor; to leak in Seal cage grease chamber when there being sewage and after reaching certain proportion; acquisition sensor 18 will be connected; send alarm signal; and upload control system; control system sends instruction and cuts off pump power power supply, thus therefore protection bearing, motor can not damage.
The present invention can be provided with radiating fin in the motor casing outside of described motor 6, and with auxiliary heat dissipation, described cable joining adopts ready-packaged joint 19, to reach effect easy for installation.
The present invention also can be provided with supporting leg 20 and support 21, and described motor 6 tail end is fixedly connected with supporting leg 20 top, and the flange of the described pump housing 1 entrance point is fixedly connected with support 21, with the function making the present invention have horizontal-vertical double-purpose.
The present invention operationally, when the horizontal work of needs, can mounting bracket and supporting leg, when needs vertical working, support and supporting leg can be dismantled, at work, because this pump has the major path pump housing, gap between the pump housing and blade is comparatively spacious, major diameter particle can be passed through, and the spiral cambered surface of helical blade on the impeller plate to cross over three quadrant rearward ends by starting point along impeller surface spiral corresponding with impeller outer edge, under the effect of this impeller (structure as shown in Figure 2), because of by object without impeller channel, therefore not easily sustained damage by object, integrity is better, not easy to wear yet, greatly improve its working life, the pump housing and front cover adopt the quick clip connected of stainless steel, change impeller, machine envelope is convenient and swift, as shown in Figure 3: front cover and end cover are combined into and seal grease chamber, unit loading type double mechanical seal is provided with in grease chamber, two ends shaft installing sleeve is linked together, centre baffle plate separates, and works alone during work, even if media end seal failure, atmosphere end sealing also can not be affected, medium can not be seeped in bearing chamber and motor cavity and cause bearing, motor failure, therefore has quick and easy for installation, seals reliable feature.Sewage acquisition sensor is provided with, once there be sewage to leak in Seal cage grease chamber, after reaching certain proportion in Seal cage, sensor will be connected, send alarm signal, control system cuts off pump power power supply simultaneously, thus therefore protection bearing, motor can not damage; Motor casing adopts aluminum hull with radiating fin auxiliary heat dissipation; Be provided with bearing in bonnet, cable joining, cable is ready-package, easy for installation; Be covered with supporting leg after motor tail end, pump inlet flange is provided with support, and the two supports pump, and because supporting leg and support can dismounting, therefore this pump is also for vertical installation.
The present invention owing to adopting said structure, such that this pump structure is novel, passing ability and non-destructive all better, reduce rate of depreciation, there is total head No-mistake Principle characteristic, disassembling, assembling and replacing impeller, machine envelope, cable time more convenient and quicker, sealing effect is better, complete machine stability is higher, the life-span is longer, mounting type is versatile and flexible.
Claims (6)
1. a centrifugal sewage pump, mainly comprise the pump housing, pump shaft, impeller, mechanical seal, front cover, motor, bonnet and control system, it is characterized in that the impeller outer end face in the impeller cavity of the described pump housing and the distance between import are greater than the hub thickness of impeller, described impeller is by wheel hub, the impeller plate and two helical blade compositions, the described impeller plate is fixed on wheel hub one end, on the impeller plate, Circle-Array shows two helical blades, described helical blade starting point is fixedly connected with wheel hub, bottom is fixed on impeller, it is corresponding with impeller plate outer rim that the spiral cambered surface of described helical blade crosses over three quadrant rearward ends by starting point along impeller plate perficial helical.
2. a kind of centrifugal sewage pump according to claim 1, it is characterized in that the described pump housing and front cover connecting end are respectively equipped with annular slot, the described pump housing and front cover to block mutually with annular slot through stainless steel lathe dog respectively and fix, described stainless steel lathe dog is relatively fixedly formed by two semi-circular clip bodies, described stainless steel lathe dog is made up of positioning ring, connecting ring and elasticity apical ring, described positioning ring two ends are vertical with connecting ring to be respectively fixedly connected with, and the corresponding inner side of two connecting ring the other ends is fixedly connected with elasticity apical ring is vertical respectively.
3. a kind of centrifugal sewage pump according to claim 1, it is characterized in that on the pump shaft between described front cover and impeller, cover has end cover, described end cover and front cover are tightly connected and form sealing grease chamber, described sealing oil indoor are provided with unit loading type double mechanical seal, described double mechanical seal warp beam sleeve is connected with pump shaft, and the axle sleeve in the middle of described double mechanical seal is provided with baffle plate.
4. a kind of centrifugal sewage pump according to claim 1, is characterized in that described sealing oil indoor are provided with sewage acquisition sensor.
5. a kind of centrifugal sewage pump according to claim 1, is characterized in that the motor casing outside of described motor is provided with radiating fin.
6. a kind of centrifugal sewage pump according to claim 1, is characterized in that being provided with supporting leg and support, and described motor tail end is fixedly connected with supporting leg top, and the flange of described pump housing entrance point is fixedly connected with support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757228.0U CN204267308U (en) | 2014-12-07 | 2014-12-07 | Centrifugal sewage pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757228.0U CN204267308U (en) | 2014-12-07 | 2014-12-07 | Centrifugal sewage pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204267308U true CN204267308U (en) | 2015-04-15 |
Family
ID=52802179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757228.0U Expired - Fee Related CN204267308U (en) | 2014-12-07 | 2014-12-07 | Centrifugal sewage pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204267308U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719467A (en) * | 2021-07-26 | 2021-11-30 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal pump combined seal with guard ring |
-
2014
- 2014-12-07 CN CN201420757228.0U patent/CN204267308U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113719467A (en) * | 2021-07-26 | 2021-11-30 | 江苏大学镇江流体工程装备技术研究院 | Centrifugal pump combined seal with guard ring |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150415 Termination date: 20181207 |