CN114776520A - Savonius turbine booster pump - Google Patents
Savonius turbine booster pump Download PDFInfo
- Publication number
- CN114776520A CN114776520A CN202210553794.9A CN202210553794A CN114776520A CN 114776520 A CN114776520 A CN 114776520A CN 202210553794 A CN202210553794 A CN 202210553794A CN 114776520 A CN114776520 A CN 114776520A
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- CN
- China
- Prior art keywords
- cover plate
- blade
- savonius
- blades
- centrifugal pump
- 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 239000010813 municipal solid waste Substances 0.000 claims description 6
- 239000012530 fluid Substances 0.000 abstract description 23
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 description 7
- 238000005086 pumping Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000002262 irrigation Effects 0.000 description 2
- 238000003973 irrigation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000000452 restraining effect Effects 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000008358 core component Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/005—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor the axis being vertical
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D3/00—Wind motors with rotation axis substantially perpendicular to the air flow entering the rotor
- F03D3/06—Rotors
- F03D3/062—Rotors characterised by their construction elements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
Abstract
The invention discloses a savonius turbine booster pump, and relates to the technical field of booster pump devices; the blade angle adjustable savonius turbine comprises an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are connected through a fixed shaft, a plurality of blades are arranged between the upper cover plate and the lower cover plate, the cross sections of the blades are arc-shaped structures, the upper ends of the front edges of the blades are rotatably connected with the outer edge of the upper cover plate, and the lower ends of the front edges of the blades are rotatably connected with the outer edge of the lower cover plate; the bottom of the savonius turbine is in transmission connection with a centrifugal pump, and one side of the centrifugal pump is fixedly connected with a water pipeline. According to the savonius turbine booster pump provided by the invention, the blade angle can be automatically adjusted, so that the capturing capacity of the blades of the savonius turbine on fluid is improved, and the conversion efficiency of the savonius turbine on the fluid energy is increased.
Description
Technical Field
The invention relates to the technical field of booster pump devices, in particular to a savonius turbine booster pump.
Background
A Savonius (Savonius) wind turbine is a vertical axis wind turbine or VAWT, which converts wind power into torque by rotation of a main shaft. The existing savonius wind turbine mainly has two types, namely a lift type and a resistance type, the resistance type savonius turbine is mainly applied to domestic residual pressure recovery, a small savonius turbine is applied to remote areas to meet energy requirements of residents, and a large savonius turbine is used for pumping water for irrigation, supplying power to electric equipment and the like.
The existing savonius turbine belongs to a resistance turbine, has large starting torque and low fluid utilization rate, and therefore, the energy conversion efficiency of the existing savonius turbine is not high.
Disclosure of Invention
The invention aims to provide a savonius turbine booster pump to solve the problems in the prior art, and the blade angle can be automatically adjusted, so that the fluid capturing capacity of the blades of the savonius turbine is improved, and the fluid energy conversion efficiency of the savonius turbine is improved.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a savonius turbine booster pump which comprises a savonius turbine with adjustable blade angles, wherein the savonius turbine comprises an upper cover plate and a lower cover plate, the upper cover plate and the lower cover plate are connected through a fixed shaft, a plurality of blades are arranged between the upper cover plate and the lower cover plate, the cross section of each blade is of an arc structure, low-speed incoming flow is easy to start, the incoming flow capturing capacity is good, and the self-starting capacity of a flat plate type straight blade is poor, so that high-speed incoming flow is needed; the upper end of the blade front edge is rotatably connected with the outer edge of the upper cover plate, the lower end of the blade front edge is rotatably connected with the outer edge of the lower cover plate, and the blade tail edge can freely move by taking the connecting end of the blade front edge and the upper and lower cover plates as a rotating shaft, so that the angle of the blade can be automatically adjusted under the impact of fluid; the bottom of the savonius turbine is in transmission connection with a centrifugal pump, one side of the centrifugal pump is fixedly connected with a water pipeline, and a trash rack is fixedly arranged at the bottom in the centrifugal pump, so that when fluid is sucked into a pump body, impurities, silt and the like at the bottom of a river channel are prevented from being directly sucked into the centrifugal pump, and blades are prevented from being damaged; the centrifugal pump pumping chamber is externally connected with a delivery pipeline, water flow enters the delivery pipeline after coming out of the centrifugal pump pumping chamber, and the water flow can be directly introduced into a farmland for irrigation through the delivery pipeline. The blade angle can be automatically adjusted, is always perpendicular to the incoming flow direction, makes full use of incoming flow, and improves the utilization rate of fluid.
Optionally, a centrifugal pump shaft is arranged in the centrifugal pump, and the top of the centrifugal pump shaft is fixedly connected with the savonius turbine; the centrifugal pump is characterized in that a suction inlet is formed in the bottom of the centrifugal pump, a plurality of suction through holes are formed in the side wall of the suction inlet, and the trash rack is fixedly arranged at the upper position inside the suction inlet.
Optionally, the concave side of each blade is a working surface, a plurality of transverse baffles are uniformly and fixedly arranged on the working surface of each blade, the radius of the lower cover plate is R, the distance between two adjacent transverse baffles on the same blade is 0.5R, the height of each transverse baffle is 0.02R, and the thickness of each transverse baffle is 0.02R; when the incoming flow impacts the blades, the transverse baffle plate horizontally restrains the incoming flow, so that the incoming flow uniformly and intensively acts on the blades, and the phenomenon that the incoming flow generates longitudinal flow to cause kinetic energy dissipation is avoided.
Optionally, a fixed baffle is fixedly connected to one side of the fixed shaft, the fixed baffle can limit the rotation position of the trailing edge of the blade, the fixed baffle plays a role in restraining the trailing edge of the blade when the blade works, and the fixed baffle is always tangent to the non-working surface of the working blade; the incoming flow impacts the working blades, the working blades rotate around the fixed points of the front edge and the upper and lower cover plates and act on the fixed baffle, and the fixed baffle restrains the angle of the blades, so that the working blades are always perpendicular to the incoming flow direction, the incoming flow is fully utilized, and the fluid utilization rate is improved.
Optionally, the centrifugal pump shaft is fixedly connected to the lower cover plate, and the centrifugal pump shaft is driven to rotate along with the rotation of the savonius turbine, so that the centrifugal pump shaft operates, and pressurization is achieved.
Optionally, the upper cover plate includes a plurality of radially arranged connecting portions, and the upper end of the leading edge of the blade is rotatably connected to the outer end of the connecting portion.
Optionally, the radius of the lower cover plate is R, the radius of the arc of the working surface of the blade is 0.2R, the radius of the arc of the non-working surface of the blade is 0.24R, and the height of the blade is 2R; the included angle of the tail edge of the blade relative to the center of the arc section of the blade and the horizontal direction is 50 degrees.
Compared with the prior art, the invention has the following technical effects:
according to the savonius turbine booster pump provided by the invention, the savonius turbine adopts the blades with the automatically adjustable angles, the working blades are always perpendicular to the incoming flow, and the utilization rate of the blades to the incoming flow is improved; the transverse baffle is added on the working surface of the blade to restrain the axial flow of the fluid, reduce the energy dissipation of the fluid and maximize the efficiency of the fluid; the arc length of the trailing edge of the blade is reduced, and the non-working blade is prevented from swinging under the action of incoming flow and interfering with each other.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required in the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the structure of a savonius turbo booster pump according to the present invention;
FIG. 2 is a schematic view illustrating a savonius turbine structure of the savonius turbine booster pump according to the present invention;
FIG. 3 is a schematic view of the operational principle of the savonius turbine according to the present invention;
FIG. 4 is a schematic diagram showing the vane size of the savonius turbo booster pump according to the present invention;
FIG. 5 is a schematic view of the vane structure of the savonius turbo booster pump according to the present invention;
FIG. 6 is a schematic diagram illustrating the change of the working state of the working vane of the savonius turbo pump according to the present invention;
description of reference numerals: 1. a savonius turbine; 2. a centrifugal pump; 3. a water delivery pipeline; 4. a blade; 5. a transverse baffle; 6. an upper cover plate; 7. a lower cover plate; 8. a fixed shaft; 9. fixing a baffle plate; 10. a centrifugal pump shaft; 11. a trash rack; 12. a river channel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a savonius turbine booster pump to solve the problems in the prior art, and the blade angle can be automatically adjusted, so that the fluid capturing capacity of the blades of the savonius turbine is improved, and the fluid energy conversion efficiency of the savonius turbine is improved.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The invention provides an savonius turbine booster pump, which comprises an savonius turbine 1 with an automatically adjustable blade angle, a centrifugal pump 2 and a water conveying pipeline 3, as shown in figure 1. As shown in fig. 2, the savonius turbine 1 adopts the blades 4 with the cross sections in an arc structure or a semicircular structure, as shown in fig. 4 and 5, the low-speed incoming flow is easy to start, the incoming flow capturing capability is good, and the flat-plate type straight blades have poor self-starting capability and need high-speed incoming flow; the blades 4 are provided with the transverse baffles 5 on the working surface, the transverse baffles 5 are used for guiding the flow, when the incoming flow impacts the blades 4, the transverse baffles 5 horizontally restrain the incoming flow, so that the incoming flow uniformly and intensively acts on the blades 4, and the phenomenon that the incoming flow generates longitudinal flow to cause kinetic energy dissipation is avoided; the transverse baffle plate horizontally restricts the fluid, and simultaneously reduces the action area of the fluid on the blades, which is unfavorable for the action of the incoming flow on the blades, and the longitudinal flow impacts the transverse baffle plate, the baffle plate is too thin and too high, which is unfavorable for the operation of the transverse baffle plate, and the radius of the lower cover plate of the savonius turbine is taken as R, the distance between the transverse baffle plates is 0.5R, the height of the baffle plate is 0.02R, and the thickness of the baffle plate is 0.02R. The blades 4 of the savonius turbine capable of automatically adjusting the blade angles are positioned in the middle of an upper cover plate 6 and a lower cover plate 7 of a savonius turbine 1, the upper cover plate 6 and the lower cover plate 7 are connected through a fixing shaft 8, the front edges of the blades 4 are fixed on the outer edges of the upper cover plate 6 and the lower cover plate 7, and the tail edges of the blades 4 can freely move, so that the automatic adjustment of the blade angles 4 is realized. In order to prevent the non-working blades from freely swinging and interfering with each other under the action of incoming flow, the arc length of the trailing edge of each blade 4 is reduced, and the structure is shown in fig. 5, so that the swinging amplitude of the blades under the action of water flow impact is weakened. A fixed baffle 9 is designed on the fixed shaft 8, the fixed baffle 9 and the fixed shaft 8 are integrated and fixed, and the fixed baffle 9 plays a role in restraining the tail edge of the blade 4 when the blade 4 works. As shown in fig. 3, the arrow direction in fig. 3 is the flow direction of the fluid in the river 12, the blades 4 perpendicular to the flow direction of the fluid are working blades, the blades 4 in other directions are non-working blades, the incoming flow impacts the working blades, the working blades rotate around the front edge and the fixed points of the upper and lower cover plates until the convex side of the working blades abuts against the fixed baffle 9, the fixed baffle 9 restrains the angle of the blades 4, so that the working blades are always perpendicular to the incoming flow direction, the incoming flow is fully utilized, the utilization rate of the fluid is improved, and the working blades drive the savonius turbine to rotate under the impact of the fluid; taking the radius of a lower cover plate of the savonius turbine as R. As a core component, the fixed baffle plate needs to ensure the rigidity and the strength, and the thickness is taken as 0.02R in comprehensive consideration, and the thickness can be properly increased if necessary. When the geometrical shape of the fixed baffle 9 is designed, the fixed baffle 9 needs to be tangent to the non-working surface of the blade, and the aim is to ensure that the incoming flow always acts on the working blade vertically when the working blade is in a working area, so that the fluid utilization rate is maximized. As shown in fig. 6, the working state change process of one working blade is shown in fig. 6, which is the state of the working blade at position 1, position 2, position 3 and position 4 from left to right in fig. 6, and correspondingly, the contact positions of the non-working surface of the back of the blade and the fixed baffle are respectively tangent point 1, tangent point 2, tangent point 3 and tangent point 4 from left to right at four positions; when the working vane is in position 1, reach best operating condition, incoming flow vertical action was on the blade working face this moment, blade 4 reached the maximize to the utilization ratio of incoming flow, position 2, position 3, position 4 are the position of the follow-up operating condition of working vane, when position 3, blade 4 finishes working, but the incoming flow impact at this moment is too big, it is great to the blade harm directly to turn into non-working vane, and the swing range is too big under the incoming flow impact, so through position 4 transition, turn into non-working vane again after reducing the incoming flow and assaulting. The tangent points of the working blade at the position 1, the position 2, the position 3 and the position 4 and the fixed baffle 9 are respectively tangent point 1, tangent point 2, tangent point 3 and tangent point 4, the included angles of the tangent points relative to the front edge of the blade and the horizontal direction are respectively 66 degrees, 85 degrees, 90 degrees and 92 degrees, and the blade 4 is always vertical to the incoming flow in the transition process from the position 1 to the position 4; as shown in fig. 4 and 5, in combination with the principle of tangency between the blades and the fixed baffle, the radius of the arc of the working surface of each blade is 0.2R, the radius of the arc of the back surface of each blade is 0.24R, and the height of each blade is 2R. Considering that the blades are perpendicular to the incoming flow direction in the working area, the incoming flow is enabled to fully act on the working blades, the swing of the blades under the action of fluid impact is reduced as much as possible in the non-working area, and mutual interference among the non-working blades is prevented, so that the included angle of the trailing edge of each blade relative to the center of the arc section of each blade and the horizontal direction is 50 degrees. The lower cover plate 7 is fixedly connected with the centrifugal pump shaft 10, the centrifugal pump shaft 10 is driven to rotate along with the rotation of the savonius turbine 1, and the centrifugal pump shaft 10 is arranged in the centrifugal pump 2 in a transmission mode, so that the centrifugal pump 2 operates, and the pressurization is realized; a suction inlet of the centrifugal pump 2 is provided with a trash rack 11, and as shown in figure 1, when fluid is sucked into a pump body, impurities, silt and the like at the bottom of a river channel are prevented from being directly sucked into the centrifugal pump, so that blades 4 are prevented from being damaged; the pumping chamber of the centrifugal pump 2 is externally connected with a water delivery pipeline 3, water flow enters the water delivery pipeline 3 after coming out of the pumping chamber of the centrifugal pump 2, and the water flow can be directly introduced into a farmland to irrigate through the water delivery pipeline 3.
In the description of the present invention, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (7)
1. The utility model provides a savonius turbine booster pump which characterized in that: the blade angle adjustable savonius turbine comprises an upper cover plate and a lower cover plate, wherein the upper cover plate and the lower cover plate are connected through a fixed shaft, a plurality of blades are arranged between the upper cover plate and the lower cover plate, the cross sections of the blades are arc-shaped structures, the upper ends of the front edges of the blades are rotatably connected with the outer edge of the upper cover plate, and the lower ends of the front edges of the blades are rotatably connected with the outer edge of the lower cover plate; the bottom of the savonius turbine is in transmission connection with a centrifugal pump, and one side of the centrifugal pump is fixedly connected with a water pipeline.
2. The savonius turbo booster pump as set forth in claim 1, wherein: a trash rack is fixedly arranged at the bottom in the centrifugal pump; a centrifugal pump shaft is arranged in the centrifugal pump, and the top of the centrifugal pump shaft is fixedly connected with the savonius turbine; the centrifugal pump is characterized in that a suction inlet is formed in the bottom of the centrifugal pump, a plurality of suction through holes are formed in the side wall of the suction inlet, and the trash rack is fixedly arranged at the upper position inside the suction inlet.
3. The savonius turbo booster pump according to claim 2, wherein: the concave side of the blade is a working surface, and a plurality of transverse baffles are uniformly and fixedly arranged on the working surface of the blade; the radius of the lower cover plate is R, the distance between every two adjacent transverse baffles on the same blade is 0.5R, the height of each transverse baffle is 0.02R, and the thickness of each transverse baffle is 0.02R.
4. The savonius turbo booster pump according to claim 2, wherein: one side of the fixed shaft is fixedly connected with a fixed baffle, and the fixed baffle can limit the rotating position of the tail edge of the blade; the fixed baffle is tangent with the non-working surface of the working blade all the time.
5. The savonius turbo booster pump as set forth in claim 2, wherein: and the shaft of the centrifugal pump is fixedly connected with the lower cover plate.
6. The savonius turbo booster pump according to claim 2, wherein: the upper cover plate comprises a plurality of connecting parts which are radially arranged, and the upper ends of the front edges of the blades are rotatably connected with the outer ends of the connecting parts.
7. The savonius turbo booster pump according to claim 2, wherein: the radius of the lower cover plate is R, the arc radius of the working surface of the blade is 0.2R, the arc radius of the non-working surface of the blade is 0.24R, and the height of the blade is 2R; the included angle of the tail edge of the blade relative to the center of the arc section of the blade and the horizontal direction is 50 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553794.9A CN114776520A (en) | 2022-05-19 | 2022-05-19 | Savonius turbine booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553794.9A CN114776520A (en) | 2022-05-19 | 2022-05-19 | Savonius turbine booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114776520A true CN114776520A (en) | 2022-07-22 |
Family
ID=82409576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210553794.9A Pending CN114776520A (en) | 2022-05-19 | 2022-05-19 | Savonius turbine booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114776520A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116158323A (en) * | 2023-02-09 | 2023-05-26 | 江苏翔宇灌溉设备有限公司 | Centrifugal water pump irrigation device |
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Cited By (2)
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| CN116158323A (en) * | 2023-02-09 | 2023-05-26 | 江苏翔宇灌溉设备有限公司 | Centrifugal water pump irrigation device |
| CN116158323B (en) * | 2023-02-09 | 2023-12-12 | 徐州金蚨地机械科技有限公司 | Centrifugal water pump irrigation device |
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