CN203248397U - Centrifugal water pump with vanes capable of being adjusted online - Google Patents
Centrifugal water pump with vanes capable of being adjusted online Download PDFInfo
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- CN203248397U CN203248397U CN 201320173794 CN201320173794U CN203248397U CN 203248397 U CN203248397 U CN 203248397U CN 201320173794 CN201320173794 CN 201320173794 CN 201320173794 U CN201320173794 U CN 201320173794U CN 203248397 U CN203248397 U CN 203248397U
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- rotating shaft
- wheel hub
- blade
- impeller
- water pump
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Abstract
The utility model discloses a centrifugal water pump with vanes capable of being adjusted online. The centrifugal water pump comprises an impeller arranged in a pump body through a rotary shaft, and the impeller comprises a hub, a cover plate and a plurality of vanes, wherein the cover plate and the vanes are arranged on the hub. The vanes are divided into two parts, and comprise the fixed vanes on the hub and the movable vanes close to the exit of the outer edge of the impeller, and the movable vanes are hinged to the cover plate. A plurality of radial oil cylinder jacking devices are arranged on the rotary shaft and are matched with the movable vanes respectively, a pipeline is arranged at one end of the rotary shaft and is communicated with the oil cylinder jacking devices, and the end of the rotary shaft enables the pipeline to communicated with an external hydraulic system through a rotary connector. The centrifugal water pump with the vanes capable of being adjusted online has the advantages that the diameter of the impeller is made to be changed by adjusting the exit angles of the vanes of the centrifugal pump online, and therefore the performance parameters of the water pump are changed, flow and lift are made to be increased or reduced, and the problem that the angles of the vanes of an existing centrifugal pump cannot be adjusted to change operating parameters is solved.
Description
Technical field
The utility model belongs to water pump, is specifically related to the online adjustable centrifugal water pump of a kind of blade.
Background technique
Along with ambient temperature or the variation of producing load, the situation that required flow and pressure need to change often appears producing in industrial and mining enterprise's circulation, and technical experts are researching and developing certain technology always, and hope can be satisfied this requirement.
Parameter adjustment in the centrifugal water pump running is the key issue of water pump operation always.Former, adopt respectively the ways such as valve regulated and motor speed-regulating (comprise and present speed governing etc. in speed reducer adjusting, Coupler speed governing, viscous coupling speed governing, the speed governing of motor pole logarithm, motor decompression speed, the motor), but the energy consumption of the valve regulated method in the above way is too large, the method of motor speed-regulating has floor space large, cost is high, the shortcomings such as rate of fault height.
Present industrial technology is at axial-flow pump, and mixed flow pump has direct adjustment impeller angle to reach the technology that changes pump group Operational Limits.Because the structural feature of centrifugal pump, present domestic and international pump industry does not all have a kind of centrifugal pump to change the technology of Operational Limits by adjusting blade angle always.
The model utility content
The purpose of this utility model is the deficiency that exists for prior art, provides a kind of and can immediately adjust blade angle and change the online adjustable centrifugal water pump of blade of Operational Limits.
The technical solution of the utility model is achieved in that
The online adjustable centrifugal water pump of blade comprises by rotating shaft being located at impeller in the pump housing that impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; Each blade is divided into two-part, comprises the stator blade on the wheel hub and the moving vane that exports near impeller outer edge, and moving vane is on the cover board hinged; Described rotating shaft is provided with some cylinder jacking devices radially and matches with described moving vane respectively, and described rotating shaft is provided with pipeline from an end and is communicated with described cylinder jacking device, and this end makes pipeline be communicated with external hydraulic system by swivel joint.
Described cylinder jacking device comprises the oil cylinder that radially is located in the rotating shaft and piston, the push rod that is connected with piston, described piston is connected with push rod by spring, described push rod matches with the bottom of described moving vane, and corresponding each moving vane is provided with position limit pin on the described cover plate.
Described wheel hub is provided with the guiding groove that cooperates with described push rod.
Second technological scheme of the present utility model is: the online adjustable centrifugal water pump of blade, comprise by rotating shaft being located at impeller in the pump housing, and impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; Each blade is divided into two-part, comprises the stator blade on the wheel hub and is located at the spring leaf that the close impeller outer edge on the stator blade exports; Described rotating shaft is provided with corresponding with spring leaf respectively radially branch pipe(tube), and described rotating shaft is provided with axial main pipe from an end and is communicated with described branch pipe(tube); Being connected with respectively wire rope corresponding branch pipe(tube) and main pipe in rotating shaft on the described spring leaf is connected with rope tension unit outside the rotating shaft.
The 3rd technological scheme of the present utility model is: the online adjustable centrifugal water pump of blade, comprise by rotating shaft being located at impeller in the pump housing, and impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; Each blade is divided into two-part, comprises the stator blade on the wheel hub and is located at the spring leaf that the close impeller outer edge on the stator blade exports; Described rotating shaft is provided with the rolling disc that rotates around the axis, radially be provided with airtight hydraulic space between rolling disc and the rotating shaft, rotating shaft is provided with the radially branch pipe(tube) that is communicated with hydraulic space, described rotating shaft is provided with axial main pipe from an end and is communicated with described branch pipe(tube), and this end makes main pipe be communicated with external hydraulic system by swivel joint; Being connected with respectively wire rope on the described spring leaf is connected with described rolling disc.
Described rolling disc comprises a hollow disk body, the biside plate of disk body and rotating shaft sealing, be provided with in the disk body one with the dividing plate of rotating shaft sealing, the rotating shaft in the disk body is provided with radially a baffle plate, forms diametrically described hydraulic space between the baffle plate in the disk body of rolling disc, dividing plate and the rotating shaft.
The 4th technological scheme of the present utility model is: the online adjustable centrifugal water pump of blade, comprise by rotating shaft being located at impeller in the pump housing, and impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; Each blade is divided into two-part, comprises the stator blade on the wheel hub and is located at the spring leaf that the close impeller outer edge on the stator blade exports; Described rotating shaft is provided with corresponding with each spring leaf respectively electromagnet and branch pipe(tube) radially, and rotating shaft is provided with axial main pipe from an end and is communicated with described branch pipe(tube); The iron block that wheel hub is provided with radial motion is corresponding with described electromagnet, and iron block is connected with spring leaf by wire rope; The wire corresponding branch pipe(tube) in rotating shaft that connects electromagnet is connected brush and is connected with external controller with main pipe.
Characteristics of the present utility model are can impeller diameter be changed, thereby change the performance parameter of water pump, flow and lift are improved or reduction.For transform pump can in the situation that original motor power do not exceed standard, former impeller performance parameter ± adjust online in 10～15% scopes, require parameter in the situation that pump operation is adjustable, having solved existing centrifugal pump can not the adjusting vane angle and change the problem of Operational Limits, and solves present industrial and mining enterprise circulation and the problem that required flow and pressure demand change often occurs producing.
The utility model need not to increase other accessorys, just can by the adjusting to water pump vane, change the Operational Limits of water pump, thereby change total discharge and the pressure of system, and no matter make the energy consumption waste reach minimum, be from effect or energy saving aspect, and good performance is arranged.
Further specify the technical solution of the utility model below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the utility model embodiment 1 structural representation.
Fig. 2 is that the AA of Fig. 1 is to view.
Fig. 3 is the schematic diagram that the push rod among the utility model embodiment 1 matches with wheel hub.
Fig. 4 is the utility model embodiment 2 structural representation.
Fig. 5 is that the BB of Fig. 4 is to view.
Fig. 6 is the utility model embodiment 3 structural representation.
Fig. 7 is that the CC of Fig. 6 is to view.
Fig. 8 is the structural representation of rolling disc among the utility model embodiment 3.
Fig. 9 is that the DD of Fig. 8 is to view.
Figure 10 is the working state schematic representation of rolling disc among the utility model embodiment 3.
Figure 11 is the utility model embodiment 4 structural representation.
Figure 12 is that the EE of Figure 11 is to view.
Embodiment
See Fig. 1, Fig. 2, the online adjustable centrifugal water pump of blade comprises by rotating shaft 1 being located at impeller in the pump housing, and impeller comprises by key 13 and is fixed on wheel hub 3 in the rotating shaft 1, is located at cover plate 2 and some blades on the wheel hub 3; Each blade is divided into two-part, comprises the stator blade 4 on the wheel hub 3 and the moving vane 6 that exports near impeller outer edge, and moving vane 6 is hinged on the cover plate 2 by hinge 5; Described rotating shaft 1 is provided with some cylinder jacking devices radially and matches with described moving vane 6 respectively; Described cylinder jacking device comprises piston 11, the push rod 7 that radially is located at the oil cylinder 12 in the rotating shaft 1 and establishes seal ring 14, piston 11 by spring 8 be located at wheel hub 3 on guiding groove in push rod 7 be connected, push rod 7 matches with the bottom of moving vane 6, and spring 8 can guarantee that push rod 7 is close to moving vane 6 constantly; Corresponding each moving vane 6 is provided with position limit pin 9 on the cover plate 2, is used for the angle change location of restraint blade 6 maximums; Be provided with the radially branch pipe(tube) 10 that is communicated with oil cylinder 12 in the described rotating shaft 1, rotating shaft 1 is provided with axial main pipe 15 from an end and is communicated with the branch pipe(tube) 10 that is connected oil cylinder 12, and this end makes main pipe 15 be communicated with external hydraulic system 17 by swivel joint 16.
The mated condition of push rod and wheel hub as shown in Figure 3, upstream face 71 and the back side 72 of push rod 7 are designed to respectively taper and trapezoidal, so not only can reduce energy loss, can also reduce the area of contact of push rod 7 and wheel hub 2, prevent that push rod 7 is stuck.
The utility model also can add the sheet rubber (not shown) at the jointing of stator blade 4 and moving vane 6, and anti-sealing is leaked by running clearance between the two, causes a large amount of losses of efficient.
Working principle: when control hydraulic system 17 during by cylinder jacking unit feeding pressure oil in the rotating shaft 1 of main pipe 15 and branch pipe(tube) 10, piston 11 will pass through spring 8 outside penetrator rams 7, push rod 7 promotes moving vane 6 and outwards rotates, angle of run becomes greatly, impeller diameter becomes large, and flow and lift that centrifugal pump offers system improve; On the contrary, when the pressure oil of supply reduces, be subjected to the active force of water at moving vane 6() compressing under, piston 11 is motion inwardly, moving vane 6 angle of run diminish, impeller diameter diminishes, and flow and lift that this pump offers system reduce, thereby realize that water pump is adjustable online.
See Fig. 4, Fig. 5, the online adjustable centrifugal water pump of blade of the present utility model comprises by rotating shaft 1 being located at impeller in the pump housing, and impeller comprises by key 13 and is fixed on wheel hub 3 in the rotating shaft 1, is located at cover plate 2 and some blades on the wheel hub 3; Each blade is divided into two-part, comprises the stator blade 4 on the wheel hub 3 and is located at the spring leaf 18 that the close impeller outer edge on the stator blade 4 exports; Described rotating shaft 1 is provided with respectively the radially branch pipe(tube) 10 corresponding with spring leaf 18, and described rotating shaft 1 is provided with axial main pipe 15 from an end and is communicated with described branch pipe(tube) 10; Be connected with respectively wire rope 19 corresponding branch pipe(tube) 10 in rotating shaft 1 on the described spring leaf 18 and be connected with main pipe and be connected with rope tension unit 20 outside the rotating shaft 1, rope tension unit 20 can adopt the ratchet capstan arrangement of routine.
The present embodiment can utilize rope tension unit 20, thereby pulling wire rope 19 bends spring leaf 18, and the exit angle of blade, impeller diameter are reduced.Make spring leaf 18 under the effect of self elastic force, return to original form (spring leaf 18 bending resistance yield stresses are much larger than the pressure of water to spring leaf 18) thereby unclamp wire rope 19, the exit angle of blade, impeller diameter are increased.
See Fig. 6, Fig. 7, the online adjustable centrifugal water pump of blade of the present utility model comprises by rotating shaft 1 being located at impeller in the pump housing that impeller comprises wheel hub 3, is located at cover plate 2 and some blades on the wheel hub 3; Each blade is divided into two-part, comprises the stator blade 4 on the wheel hub 3 and is located at the spring leaf 18 that the close impeller outer edge on the stator blade 4 exports; Described rotating shaft 1 is provided with around the shaft 1 rolling disc 22 that rotates, rolling disc 22(is referring to Fig. 8,9) comprise a hollow disk body, the biside plate 223 of disk body and rotating shaft 1 sealing, be provided with in the disk body one with the dividing plate 221 of rotating shaft 1 sealing, rotating shaft 1 in the disk body is provided with radially a baffle plate 21, form diametrically airtight hydraulic space 222 between the baffle plate 21 in the disk body of rolling disc 22, dividing plate 221 and the rotating shaft 1, disk body is provided with a circle convex tendon 224 outward, and convex tendon 224 is provided with the hole 225 corresponding with spring leaf 18; Rotating shaft 1 is provided with the radially branch pipe(tube) 10 that is communicated with hydraulic space 222, and described rotating shaft 1 is provided with axial main pipe 15 from an end and is communicated with described branch pipe(tube) 10, and this end makes main pipe 15 be communicated with external hydraulic system 17 by swivel joint 16; Being connected with respectively wire rope 19 on the described spring leaf 18 is connected with hole 225 on described rolling disc 22 convex tendons 224.
During the present embodiment work, when control hydraulic system 17 is oily to hydraulic space 222 supply pressures between rotating shaft 1 and the rolling disc 22 by main pipe 15 and branch pipe(tube) 10, rolling disc 22 will rotate along the direction of arrow (referring to Figure 10), thereby reel and spur wire rope 19 spring leaf 18 is bent, the exit angle of blade, impeller diameter are reduced.When the pressure that reduces to control in the hydraulic system 17, spring leaf 18 pulling wire rope 19 under the effect of self elastic force drives rolling discs 22 and returns to original form (spring leaf 18 bending resistance yield stresses are much larger than the pressure of water to spring leaf 18, and the frictional force between axle 1 and the rolling disc 22), the exit angle of blade, impeller diameter are increased.
See Figure 11, Figure 12, the online adjustable centrifugal water pump of blade of the present utility model comprises by rotating shaft 1 being located at impeller in the pump housing that impeller comprises wheel hub 3, is located at cover plate 2 and some blades on the wheel hub 3; Each blade is divided into two-part, comprises the stator blade 4 on the wheel hub 3 and is located at the spring leaf 18 that the close impeller outer edge on the stator blade 4 exports; Described rotating shaft 1 is provided with respectively the electromagnet 23 corresponding with each spring leaf 18 and branch pipe(tube) 10 radially, wheel hub 3 is provided with guiding groove 27, the iron block 24 that is provided with radial motion in the guiding groove 27 is corresponding with described electromagnet 23, and iron block 24 is connected with spring leaf 18 by wire rope 19; Rotating shaft 1 is provided with axial main pipe 15 from an end and is communicated with described branch pipe(tube) 10, and the wire corresponding branch pipe(tube) 10 in rotating shaft 1 that connects electromagnet 23 is connected with main pipe and is connected with external controller 26 by brush 25.
During the present embodiment work, can allow the magnetic force of the electromagnet 23 in the rotating shaft 1 change by control gear 17 control size of current, increase the electric current [strength of electromagnet 23, iron block 24 is attracted inwardly motion by electromagnet 23, thereby pulling wire rope 19 bends spring leaf 18, and the exit angle of blade, impeller diameter are reduced; Reduce electric current [strength, electromagnet 23 magnetic force are diminished, spring leaf 18 returns to original form (spring leaf 18 bending resistance yield stresses are much larger than the pressure of water to blade 18) under the effect of self elastic force, and the exit angle of blade, impeller diameter are increased.
Claims (7)
1. online adjustable centrifugal water pump of blade comprises by rotating shaft being located at impeller in the pump housing that impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; It is characterized in that each blade is divided into two-part, comprise the stator blade on the wheel hub and the moving vane that exports near impeller outer edge, moving vane is on the cover board hinged; Described rotating shaft is provided with some cylinder jacking devices radially and matches with described moving vane respectively, and described rotating shaft is provided with pipeline from an end and is communicated with described cylinder jacking device, and this end makes pipeline be communicated with external hydraulic system by swivel joint.
2. the online adjustable centrifugal water pump of blade according to claim 1, it is characterized in that described cylinder jacking device comprises the oil cylinder that radially is located in the rotating shaft and piston, the push rod that is connected with piston, described piston is connected with push rod by spring, described push rod matches with the bottom of described moving vane, and corresponding each moving vane is provided with position limit pin on the described cover plate.
3. the online adjustable centrifugal water pump of blade according to claim 2 is characterized in that described wheel hub is provided with the guiding groove that cooperates with described push rod.
4. online adjustable centrifugal water pump of blade comprises by rotating shaft being located at impeller in the pump housing that impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; It is characterized in that each blade is divided into two-part, comprise the stator blade on the wheel hub and be located at the spring leaf that the close impeller outer edge on the stator blade exports; Described rotating shaft is provided with corresponding with spring leaf respectively radially branch pipe(tube), and described rotating shaft is provided with axial main pipe from an end and is communicated with described branch pipe(tube); Being connected with respectively wire rope corresponding branch pipe(tube) and main pipe in rotating shaft on the described spring leaf is connected with rope tension unit outside the rotating shaft.
5. online adjustable centrifugal water pump of blade comprises by rotating shaft being located at impeller in the pump housing that impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; It is characterized in that each blade is divided into two-part, comprise the stator blade on the wheel hub and be located at the spring leaf that the close impeller outer edge on the stator blade exports; Described rotating shaft is provided with the rolling disc that rotates around the axis, radially be provided with airtight hydraulic space between rolling disc and the rotating shaft, rotating shaft is provided with the radially branch pipe(tube) that is communicated with hydraulic space, described rotating shaft is provided with axial main pipe from an end and is communicated with described branch pipe(tube), and this end makes main pipe be communicated with external hydraulic system by swivel joint; Being connected with respectively wire rope on the described spring leaf is connected with described rolling disc.
6. the online adjustable centrifugal water pump of blade according to claim 5, it is characterized in that described rolling disc comprises a hollow disk body, the biside plate of disk body and rotating shaft sealing, be provided with in the disk body one with the dividing plate of rotating shaft sealing, rotating shaft in the disk body is provided with radially a baffle plate, forms diametrically described hydraulic space between the baffle plate in the disk body of rolling disc, dividing plate and the rotating shaft.
7. online adjustable centrifugal water pump of blade comprises by rotating shaft being located at impeller in the pump housing that impeller comprises wheel hub, is located at cover plate and some blades on the wheel hub; It is characterized in that each blade is divided into two-part, comprise the stator blade on the wheel hub and be located at the spring leaf that the close impeller outer edge on the stator blade exports; Described rotating shaft is provided with corresponding with each spring leaf respectively electromagnet and branch pipe(tube) radially, and rotating shaft is provided with axial main pipe from an end and is communicated with described branch pipe(tube); The iron block that wheel hub is provided with radial motion is corresponding with described electromagnet, and iron block is connected with spring leaf by wire rope; The wire corresponding branch pipe(tube) in rotating shaft that connects electromagnet is connected brush and is connected with external controller with main pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173794 CN203248397U (en) | 2013-04-09 | 2013-04-09 | Centrifugal water pump with vanes capable of being adjusted online |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320173794 CN203248397U (en) | 2013-04-09 | 2013-04-09 | Centrifugal water pump with vanes capable of being adjusted online |
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| Publication Number | Publication Date |
|---|---|
| CN203248397U true CN203248397U (en) | 2013-10-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320173794 Withdrawn - After Issue CN203248397U (en) | 2013-04-09 | 2013-04-09 | Centrifugal water pump with vanes capable of being adjusted online |
Country Status (1)
| Country | Link |
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| CN (1) | CN203248397U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185025A (en) * | 2013-04-09 | 2013-07-03 | 长沙山水节能研究院有限公司 | Centrifugal water pump with on-line adjustable vanes |
| CN106930973A (en) * | 2017-05-17 | 2017-07-07 | 重庆欧尼斯特机电有限公司 | The variable water pump of impeller diameter |
| WO2020244024A1 (en) * | 2019-06-06 | 2020-12-10 | 苏州赫尔拜斯泵业有限公司 | Combined eccentric impeller |
| CN112283165A (en) * | 2020-10-27 | 2021-01-29 | 张俊远 | Chemical centrifugal pump auxiliary device for preventing cavitation erosion from causing equipment damage |
| CN113202819A (en) * | 2021-05-31 | 2021-08-03 | 河海大学 | Guide device for shaft extension tubular pump based on adjustable blade number and control method |
-
2013
- 2013-04-09 CN CN 201320173794 patent/CN203248397U/en not_active Withdrawn - After Issue
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103185025A (en) * | 2013-04-09 | 2013-07-03 | 长沙山水节能研究院有限公司 | Centrifugal water pump with on-line adjustable vanes |
| CN103185025B (en) * | 2013-04-09 | 2015-08-19 | 长沙山水节能研究院有限公司 | The online adjustable centrifugal water pump of a kind of blade |
| CN106930973A (en) * | 2017-05-17 | 2017-07-07 | 重庆欧尼斯特机电有限公司 | The variable water pump of impeller diameter |
| WO2020244024A1 (en) * | 2019-06-06 | 2020-12-10 | 苏州赫尔拜斯泵业有限公司 | Combined eccentric impeller |
| CN112283165A (en) * | 2020-10-27 | 2021-01-29 | 张俊远 | Chemical centrifugal pump auxiliary device for preventing cavitation erosion from causing equipment damage |
| CN113202819A (en) * | 2021-05-31 | 2021-08-03 | 河海大学 | Guide device for shaft extension tubular pump based on adjustable blade number and control method |
| CN113202819B (en) * | 2021-05-31 | 2024-05-28 | 河海大学 | Flow guiding device for axial-extension tubular pump based on adjustable number of blades and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: HUNAN M&W ENERGY SAVING TECHNOLOGY & SCIENCE CO., LTD. Assignor: Changsha Mountain Water Energy-Saving Research Institute Co., Ltd. Contract record no.: 2013430000175 Denomination of utility model: Centrifugal water pump with on-line adjustable vanes Granted publication date: 20131023 License type: Exclusive License Record date: 20131202 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131023 Effective date of abandoning: 20150819 |
|
| RGAV | Abandon patent right to avoid regrant |