CN211448877U - High-efficiency water turbine - Google Patents
High-efficiency water turbine Download PDFInfo
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- CN211448877U CN211448877U CN201921486863.9U CN201921486863U CN211448877U CN 211448877 U CN211448877 U CN 211448877U CN 201921486863 U CN201921486863 U CN 201921486863U CN 211448877 U CN211448877 U CN 211448877U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The utility model provides a high-efficiency water turbine, which comprises a pump shell, a first transition connecting plate, a second transition connecting plate, a front side plate and a rear side plate, wherein the upper end cover and the lower end cover are connected with each other; the cross section of the stator is oblate, and a fixed shaft penetrating through the stator is fixedly connected with the front or rear side plate; the rotor comprises a front circular plate, a rear circular plate and a blade plate connected between the front circular plate and the rear circular plate, and the inner edge of the blade plate can be in clearance fit with the arc surfaces of the upper end and the lower end of the stator; water is discharged from the inner edge and the outer edge of the blade plate and has time difference; the front or rear circular plate is positioned at a gap between the front or rear end surface of the stator and the front or rear side plate, the two circular plates are connected with the fixed shaft through a bearing, the rear or front circular plate is fixedly connected with the power output shaft, the inner surface of the rear or front circular plate is connected with the fixed shaft through a bearing, and the outer surface of the rear or front circular plate is connected with the rear or front side plate through a bearing; a water inlet is arranged on the transition connecting plate opposite to the opening direction of the blade plate; the upper end covers close to the water inlet and the water outlet are respectively provided with a row air inlet channel and a row air inlet channel. The water turbine has the advantages of simple structure and low manufacturing cost, and can fill the blank of the type selection of the low-water-head water turbine.
Description
Technical Field
The utility model relates to a hydraulic turbine technical field especially relates to a high efficiency hydraulic turbine.
Background
China is a large ocean country and has a long coastline of nearly twenty thousand kilometers, and a chess of Hongwan Xinluo and cape. The tidal energy which can be utilized by us has huge reserve, nearly 2 hundred million KW, and is inexhaustible safe and reliable clean energy. Meanwhile, China is a country with abundant land and river hydraulic resources. According to statistics, the theoretical storage amount of continental hydraulic resources in China is nearly 7 hundred million KW, and the development amount can be 5.4 hundred million KW. From the tidal power station built in China at present, the running and operating conditions are generally unsatisfactory, and the common fault exists, namely high unit cost, large civil engineering quantity, low running efficiency and slow investment recovery. Some depend on local government subsidies, some depend on cultivation and various operations to obtain the return, seriously restrict the investment enthusiasm of people on tidal power generation, and influence the development and utilization of the tidal energy which is a precious high-quality green new energy. From the perspective of river hydroelectric power generation, except for some large hydroelectric power generation facilities, water energy utilization in a gentle water flow area is also a difficult problem. The fundamental crux of these problems is that no reasonable and economically applicable water turbine with ultra-low head characteristics is available.
There are two main classes of water turbines in use today, namely, reaction turbines and impulse turbines. From the working principle and process of the reaction type water turbine, when water flow finally acts on the impeller, the direction of the force is tangent to the impeller surface, and only partial component force vertical to the shaft is generated to push the water turbine to rotate. As shown in fig. 1, if the angle between the water flow direction and the impeller surface is a, and the water flow power is F (water), it can be derived from the parallelogram law of force, and the vertical positive pressure acting on the impeller surface is F (pressure) ═ F (water) × sinA, and the effective acting force that pushes the turbine to rotate and is perpendicular to the shaft is F (existence) ═ F (water) × sinA cosA. sinA cosA maximum is 0.5, so F (present) does not exceed 1/2 for F (water), and hydraulic power is not fully effective; although the working principle of the bucket impact type water turbine is different from that of the reaction type, the bucket impact type water turbine works by impacting the bucket with high-speed water flow, in the working process, the water flow is splashed and dissipated, the part of water still has larger kinetic energy, and even the splashing process generates reaction impact on other buckets, so that the efficiency of the water turbine is greatly influenced.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a high efficiency hydraulic turbine simple structure, low in manufacturing cost to fill the blank of low head hydraulic turbine lectotype, be applicable to various hydroelectric generation application environment, be used for the place of big flood peak to have the advantage that high efficiency, investment economize equally.
In order to achieve the above object, the utility model provides a high-efficiency water turbine, including the pump case, the pump case includes upper end cover, lower end cover, first transition connecting plate, second transition connecting plate, preceding curb plate and posterior lateral plate, wherein at least some upper end cover is circular-arc, at least some lower end cover also is circular-arc, the both ends of the upper end cover part that is circular-arc and the both ends of the lower end cover part that is circular-arc are connected together through first transition connecting plate and second transition connecting plate respectively; a water inlet or a water outlet is arranged on the first transition connecting plate, a water outlet or a water inlet is arranged on the second transition connecting plate, and the position of the water outlet is lower than that of the water inlet; the front side plate and the rear side plate are respectively connected with the upper end cover, the lower end cover, the first transition connecting plate and the second transition connecting plate;
a stator is arranged in the pump shell, the fixed shaft penetrates through the stator along the front-back direction, the fixed shaft is fixedly connected with the front side plate or the rear side plate, the upper end and the lower end of the cross section of the stator are both arc-shaped with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are both smaller than the arc length of a semicircle with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are larger than the arc distance between the inner edges of the two adjacent blade plates, and the left end line and the right end line of the cross section of the stator are respectively used for connecting the upper end arc and;
the pump shell is internally provided with a rotor, the rotor comprises a front circular plate, a rear circular plate and a plurality of blades connected between the front circular plate and the rear circular plate, all the blades are distributed along the circumferential direction, and the inner edge of each blade can be in clearance fit with the upper arc surface and the lower arc surface of the stator in the rotating process of the rotor; the water inlet and outlet of the inner edge and the outer edge of each blade plate have time difference; the side surface of the rotor is of an unsealed structure, and the left end surface and the right end surface of the stator are communicated with the space outside the rotor; the front circular plate is positioned at a gap between the front end surface of the stator and the front side plate, and the front end surface of the stator, the front circular plate of the rotor and the front side plate are closely arranged in a non-contact manner along the front-back direction; the rear circular plate is positioned in a gap between the rear end face of the stator and the rear side plate, the rear end face of the stator, the rear circular plate of the rotor and the rear side plate are closely arranged in a non-contact manner along the front-rear direction, the front circular plate and the rear circular plate are respectively connected with the fixed shaft through bearings or sliding sleeves, the rear circular plate or the front circular plate is fixedly connected with a power output shaft, the power output shaft is a tubular member sleeved on the fixed shaft, the inner surface of the power output shaft is connected with the fixed shaft through a bearing or a sliding sleeve, and the outer surface of the power output shaft is connected with the rear side plate or the front side plate through a bearing or a sliding sleeve;
a water inlet is arranged on the transition connecting plate corresponding to the opening direction of the blade plate, and the transition connecting plate is a first transition connecting plate or a second transition connecting plate; an exhaust channel is arranged at the upper end cover close to the water inlet, and an air inlet channel is arranged at the upper end cover close to the water outlet.
Preferably, the radius of the arc-shaped upper end cover portion is equal to the radius of the arc-shaped lower end cover portion, the arc-shaped upper end cover portion and the arc-shaped lower end cover portion are concentric circles, and the outer edge of the vane plate is slidable along the inner wall of the pump casing.
Preferably, the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the first transition connecting plate can form a water inlet channel or a water outlet channel, and the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the second transition connecting plate can form a water outlet channel or a water inlet channel.
Preferably, a plurality of annular reinforcing ribs are further distributed along the front-back direction, and each reinforcing rib is connected with each blade plate along the circumferential direction.
Preferably, each of the blades is in the shape of an involute arc.
The utility model also provides a high efficiency hydraulic turbine, including the pump case, the pump case includes upper end cover, bottom end cover, first transition connecting plate, second transition connecting plate, preceding curb plate and posterior lateral plate, wherein at least some upper end cover is circular-arc, at least some bottom end cover also is circular-arc, the both ends that are circular-arc upper endcap portion and the both ends that are circular-arc lower endcap portion are connected together through first transition connecting plate and second transition connecting plate respectively; a water inlet or a water outlet is arranged on the first transition connecting plate, a water outlet or a water inlet is arranged on the second transition connecting plate, and the position of the water outlet is lower than that of the water inlet; the front side plate and the rear side plate are respectively connected with the upper end cover, the lower end cover, the first transition connecting plate and the second transition connecting plate;
a stator is arranged in the pump shell and is sleeved on the rotating shaft, the upper end and the lower end of the cross section of the stator are in an arc shape with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are both smaller than the arc length of a semicircle with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are larger than the arc distance between the inner edges of two adjacent blade plates, and the left end line and the right end line of the cross section of the stator are respectively used for connecting the upper end arc and the lower end arc of the cross section;
the pump shell is internally provided with a rotor, the rotor comprises a front circular plate, a rear circular plate and a plurality of blades connected between the front circular plate and the rear circular plate, all the blades are distributed along the circumferential direction, and the inner edge of each blade can be in clearance fit with the upper arc surface and the lower arc surface of the stator in the rotating process of the rotor; the water inlet and outlet of the inner edge and the outer edge of each blade plate have time difference; the side surface of the rotor is of an unsealed structure, and the left end surface and the right end surface of the stator are communicated with the space outside the rotor; the front circular plate is positioned at a gap between the front end surface of the stator and the front side plate, and the front end surface of the stator, the front circular plate of the rotor and the front side plate are closely arranged in a non-contact manner along the front-back direction; the rear circular plate is positioned in a gap between the rear end face of the stator and the rear side plate, the rear end face of the stator, the rear circular plate of the rotor and the rear side plate are closely arranged in a non-contact manner along the front-rear direction, the rotating shaft penetrates through the front circular plate and the rear circular plate, the front circular plate and the rear circular plate are fixedly connected with the rotating shaft, and the rotating shaft is connected with the front side plate and the rear side plate through a bearing or a sliding sleeve;
a water inlet is arranged on the transition connecting plate corresponding to the opening direction of the blade plate, and the transition connecting plate is a first transition connecting plate or a second transition connecting plate; an exhaust channel is arranged at the upper end cover close to the water inlet, and an air inlet channel is arranged at the upper end cover close to the water outlet.
Preferably, the radius of the arc-shaped upper end cover portion is equal to the radius of the arc-shaped lower end cover portion, the arc-shaped upper end cover portion and the arc-shaped lower end cover portion are concentric circles, and the outer edge of the vane plate is slidable along the inner wall of the pump casing.
Preferably, the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the first transition connecting plate can form a water inlet channel or a water outlet channel, and the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the second transition connecting plate can form a water outlet channel or a water inlet channel.
Preferably, a plurality of annular reinforcing ribs are further distributed along the front-back direction, and each reinforcing rib is connected with each blade plate along the circumferential direction.
Preferably, each of the blades is in the shape of an involute arc.
The beneficial effects of the utility model reside in that above-mentioned high efficiency hydraulic turbine is different with current hydraulic turbine, and it has almost not water loss and loses with kinetic energy, can be applied to all kinds of hydroelectric generation places. If the device is applied to the occasions with extremely low water heads and large flow, the device has more advantages than the existing equipment. The power station is used for a tidal power station, can save a large amount of investment compared with the existing power station, and has high power generation efficiency; the method is used for building a distributed river power station, does not need to build a high dam, does not generate a submerged area, and can generate power by water flow. The utilization characteristic of the ultra-low water head can solve the problems of tourism drifting and ship navigation of rivers and harbors without building a high dam and matching with a switch gate, and can also establish an ecological water channel special for the rivers to realize ecological protection.
Drawings
Fig. 1 shows a schematic view of the working principle of a prior art reaction turbine.
Fig. 2 shows a schematic structural diagram of a high efficiency water turbine according to the present invention.
Reference numerals: 1-upper end cover, 2-lower end cover, 3-first transition connecting plate, 4-second transition connecting plate, 5-water inlet channel, 6-water outlet channel, 7-stator, 8-rotor, 9-first accommodating cavity, 10-second accommodating cavity, 11-blade plate, 12-exhaust channel, 13-air inlet channel and 14-base.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings.
Example 1
As shown in fig. 2, the high efficiency water turbine of the present invention includes a pump case, the pump case includes an upper end cap 1, a lower end cap 2, a first transition connecting plate 3, a second transition connecting plate 4, a front side plate and a rear side plate, wherein at least a portion of the upper end cap 1 is arc-shaped, at least a portion of the lower end cap 2 is also arc-shaped, and the radius of the portion of the upper end cap 1 which is arc-shaped is equal to the radius of the portion of the lower end cap 2 which is arc-shaped, the portion of the upper end cap 1 which is arc-shaped and the portion of the lower end cap 2 which is arc-shaped are concentric circles, and both ends of the portion of the upper end cap 1 which is arc-shaped and both ends of the portion of the lower end cap 2 which is arc; a water inlet or a water outlet is arranged on the first transition connecting plate 3, a water outlet or a water inlet is arranged on the second transition connecting plate 4, the position of the water outlet is lower than that of the water inlet, and in the embodiment, a water inlet is arranged on the second transition connecting plate 4; the front side plate is respectively connected with the upper end cover 1, the lower end cover 2, the first transition connecting plate 3 and the second transition connecting plate 4, and the rear side plate is respectively connected with the upper end cover 1, the lower end cover 2, the first transition connecting plate 3 and the second transition connecting plate 4; first transition connecting plate 3 the outside upper end cover 1, lower extreme cover 2, preceding curb plate and posterior lateral plate can form into water channel 5 or go out water channel 6 the outside of second transition connecting plate 4 upper end cover 1, lower extreme cover 2, preceding curb plate and posterior lateral plate can form out water channel 6 or inhalant canal 5, in this embodiment the outside of second transition connecting plate 4 upper end cover 1, lower extreme cover 2, preceding curb plate and posterior lateral plate form inhalant canal 5. A base 14 is also arranged at the lower end cover 2.
A stator 7 is arranged in an inner space formed by the upper end cover 1, the lower end cover 2, the first transition connecting plate 3, the second transition connecting plate 4, the front side plate and the rear side plate, a fixed shaft penetrates through the stator 7 along the front-rear direction (namely the axial direction of the stator 7), and the fixed shaft is fixedly connected with the front side plate or the rear side plate; the upper end and the lower extreme of the cross section of stator 7 all are circular-arc that the radius is R, and the arc length of the upper end circular arc of the cross section of stator 7 and the arc length of lower extreme circular arc all are less than the arc length of the semicircle that the radius is R, the arc length of the upper end circular arc of the cross section of stator 7 and the arc length of lower extreme circular arc should be greater than the arc distance between two adjacent 11 inner edges of acanthus leaf. The left end line and the right end line of the cross section of the stator 7 are respectively used for connecting the upper end circular arc and the lower end circular arc of the cross section; in the present embodiment, the cross section of the stator 7 is oblate, that is, the arc length of the upper end arc of the cross section of the stator 7 is equal to the arc length of the lower end arc. The dimensions of the respective cross-sections of the stator 7 are the same.
A rotor 8 is further arranged in an inner space (namely in the pump shell) formed by the upper end cover 1, the lower end cover 2, the first transition connecting plate 3, the second transition connecting plate 4, the front side plate and the rear side plate, the rotor 8 comprises a front circular plate, a rear circular plate and a plurality of blades 11 connected between the front circular plate and the rear circular plate, all the blades 11 are distributed along the circumferential direction, and in the rotating process of the rotor 8, the inner edge of each blade 11 can be in clearance fit with the upper end arc surface and the lower end arc surface of the stator 7; each blade plate 11 is in an involute arc shape, so that the blade plates 11 generate good water inlet and dehydration characteristics, water inlet impact and water outlet retardation are avoided, an optimal work force bearing surface is formed, and the water outlet at the inner edge and the outer edge of each blade plate 11 has time difference.
The side surface of the rotor 8 is of an unsealed structure, and the left end surface and the right end surface of the stator 7 are communicated with the space outside the rotor; the front circular plate is positioned at a gap between the front end surface of the stator 7 and the front side plate, and the front end surface of the stator 7, the front circular plate of the rotor and the front side plate are closely arranged in a non-contact manner along the front-back direction; the rear circular plate is located at a gap between the rear end face of the stator 7 and the rear side plate, the rear end face of the stator 7, the rear circular plate of the rotor and the rear side plate are closely arranged in a non-contact manner along the front-rear direction, the front circular plate and the rear circular plate are respectively connected with the fixed shaft through bearings or sliding sleeves, the rear circular plate or the front circular plate is fixedly connected with the power output shaft, the power output shaft is a tubular member sleeved on the fixed shaft, the inner surface of the power output shaft is connected with the fixed shaft through the bearings or the sliding sleeves, and the outer surface of the power output shaft is connected with the rear side plate or the front side plate through the bearings or the sliding sleeves. The power output shaft is externally connected with a generator.
A water inlet is arranged on the transition connecting plate corresponding to the opening direction of the blade plate 11, and the transition connecting plate is a first transition connecting plate 3 or a second transition connecting plate 4; an exhaust channel 12 is arranged at the position of the upper end cover 1 close to the water inlet, an air inlet channel 13 is arranged at the position of the upper end cover 1 close to the water outlet, and the exhaust channel 12 and the air inlet channel 13 can be respectively opened upwards and also can be communicated in a sealing way. A plurality of annular reinforcing ribs can be distributed along the front and back directions, and each reinforcing rib is connected with each blade plate 11 along the circumferential direction.
Since the side surface of the rotor 8 is of an unsealed structure, the left and right end surfaces of the stator 7 are communicated with the space outside the rotor 8, in this embodiment, the space between the right end surface of the stator 7 and the side surface of the rotor 8 is referred to as a first accommodating cavity 9, and the space between the left end surface of the stator 7 and the side surface of the rotor 8 is referred to as a second accommodating cavity 10.
In a specific use process, at the water inlet side, under the pushing of water flow, the rotor 8 rotates along the clockwise direction, the outer edge of the vane plate 11 can slide along the inner wall of the pump shell, when the inner edge of the rotating vane plate 11 descends from the highest position to the water surface of the first accommodating cavity 9, water flow flows into the space above the vane plate 11 from the inner edge of the vane plate 11, the vane plate 11 is filled with water, air in the water flow is squeezed, and the air is discharged through the exhaust passage 12. The blades 11 continuously descend, when the outer edges of the blades 11 are lower than the water surface, the incoming water directly enters the blades 11 to fill water, and air among the blades 11 is continuously squeezed and the blades 11 are pushed to do work.
Similarly, on the water outlet side of the water turbine, when the inner edges of the blades 11 ascend from the lowest position to the second accommodating cavity 10, air enters between the blades 11 from the inner edges of the blades 11, so that water among the blades 11 is promoted to be discharged as soon as possible, water is prevented from attaching to the blades 11 due to the vacuum adsorption effect, reaction force against the running direction is generated through water gravity, and the running speed and the stability of the water turbine are improved.
If the side surface without the rotor 8 is of an unsealed structure and the first accommodating cavity 9 and the second accommodating cavity 10 are designed, when the inner edge of the blade 11 descends to the water surface before the outer edge, the blade 11 at this moment is equivalent to a buoy, and water generates reaction buoyancy opposite to the operation direction of the water turbine on the blade 11, so that the operation of the water turbine is seriously hindered.
The high-efficiency water turbine related to the utility model adopts horizontal arrangement of the cross shaft, so that all the water for power generation passes through the bottom of the water turbine, the limited and maximum water head potential energy is fully utilized, and the highest kinetic energy is obtained; and the water flow is totally vertical to the front surface of the blade plate, so that the blade plate is stressed and operated, the water flow is not lost, the force is not dispersed, the resultant force is concentrated, and the high efficiency is generated, so that the over-flow of the equipment can be improved to the maximum extent, and the capacity of a single machine is improved.
The utility model relates to a high efficiency hydraulic turbine is different from current hydraulic turbine, and it has little water loss and kinetic energy to scatter and disappear, can be applied to all kinds of hydroelectric generation places. If the device is applied to the occasions with extremely low water heads and large flow, the device has more advantages than the existing equipment. The power station is used for a tidal power station, can save a large amount of investment compared with the existing power station, and has high power generation efficiency; the method is used for building a distributed river power station, does not need to build a high dam, does not generate a submerged area, and can generate power by water flow. The utilization characteristic of the ultra-low water head can solve the problems of tourism drifting and ship navigation of rivers and harbors without building a high dam and matching with a switch gate, and can also establish an ecological water channel special for the rivers to realize ecological protection.
Example 2
In this embodiment, the stator 7 is not provided with a fixed shaft, the stator 7 is sleeved on a rotating shaft, the stator 7 is relatively fixed in a position holding state by a gravity block or a mechano-electronic mode in the stator 7, the rotating shaft penetrates through a front circular plate and a rear circular plate of the rotor, the front circular plate and the rear circular plate are both fixedly connected with the rotating shaft, and the rotating shaft is connected with the front side plate and the rear side plate through a bearing or a sliding sleeve; the rotating shaft is externally connected with a generator. The remaining structure of the water turbine is the same as that of embodiment 1.
Claims (10)
1. A high efficiency water turbine characterized by: the pump comprises a pump shell, wherein the pump shell comprises an upper end cover, a lower end cover, a first transition connecting plate, a second transition connecting plate, a front side plate and a rear side plate, at least part of the upper end cover is arc-shaped, at least part of the lower end cover is arc-shaped, and two ends of an arc-shaped upper end cover part and two ends of an arc-shaped lower end cover part are respectively connected together through the first transition connecting plate and the second transition connecting plate; a water inlet or a water outlet is arranged on the first transition connecting plate, a water outlet or a water inlet is arranged on the second transition connecting plate, and the position of the water outlet is lower than that of the water inlet; the front side plate and the rear side plate are respectively connected with the upper end cover, the lower end cover, the first transition connecting plate and the second transition connecting plate;
a stator is arranged in the pump shell, the fixed shaft penetrates through the stator along the front-back direction, the fixed shaft is fixedly connected with the front side plate or the rear side plate, the upper end and the lower end of the cross section of the stator are both arc-shaped with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are both smaller than the arc length of a semicircle with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are larger than the arc distance between the inner edges of the two adjacent blade plates, and the left end line and the right end line of the cross section of the stator are respectively used for connecting the upper end arc and;
the pump shell is internally provided with a rotor, the rotor comprises a front circular plate, a rear circular plate and a plurality of blades connected between the front circular plate and the rear circular plate, all the blades are distributed along the circumferential direction, and in the rotating process of the rotor, the inner edge of each blade is in clearance fit with the upper arc surface and the lower arc surface of the stator; the water inlet and outlet of the inner edge and the outer edge of each blade plate have time difference; the side surface of the rotor is of an unsealed structure, and the left end surface and the right end surface of the stator are communicated with the space outside the rotor; the front circular plate is positioned at a gap between the front end surface of the stator and the front side plate, and the front end surface of the stator, the front circular plate of the rotor and the front side plate are closely arranged in a non-contact manner along the front-back direction; the rear circular plate is positioned in a gap between the rear end face of the stator and the rear side plate, the rear end face of the stator, the rear circular plate of the rotor and the rear side plate are closely arranged in a non-contact manner along the front-rear direction, the front circular plate and the rear circular plate are respectively connected with the fixed shaft through bearings, the rear circular plate or the front circular plate is fixedly connected with a power output shaft, the power output shaft is a tubular member sleeved on the fixed shaft, the inner surface of the power output shaft is connected with the fixed shaft through the bearings, and the outer surface of the power output shaft is connected with the rear side plate or the front side plate through the bearings;
a water inlet is arranged on the transition connecting plate corresponding to the opening direction of the blade plate, and the transition connecting plate is a first transition connecting plate or a second transition connecting plate; an exhaust channel is arranged at the upper end cover close to the water inlet, and an air inlet channel is arranged at the upper end cover close to the water outlet.
2. The high efficiency water turbine as set forth in claim 1, wherein: the radius of the arc-shaped upper end cover part is equal to that of the arc-shaped lower end cover part, the arc-shaped upper end cover part and the arc-shaped lower end cover part are concentric circles, and the outer edge of the vane plate slides along the inner wall of the pump shell.
3. A high efficiency water turbine as claimed in claim 1 or 2, wherein: and the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the first transition connecting plate form a water inlet channel or a water outlet channel, and the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the second transition connecting plate form a water outlet channel or a water inlet channel.
4. The high efficiency water turbine as set forth in claim 1, wherein: and a plurality of annular reinforcing ribs are also distributed along the front and back directions, and each reinforcing rib is connected with each blade plate along the circumferential direction.
5. The high efficiency water turbine as claimed in claim 1 or 4, wherein: each blade plate is in an involute arc shape.
6. A high efficiency water turbine characterized by: the pump comprises a pump shell, wherein the pump shell comprises an upper end cover, a lower end cover, a first transition connecting plate, a second transition connecting plate, a front side plate and a rear side plate, at least part of the upper end cover is arc-shaped, at least part of the lower end cover is arc-shaped, and two ends of an arc-shaped upper end cover part and two ends of an arc-shaped lower end cover part are respectively connected together through the first transition connecting plate and the second transition connecting plate; a water inlet or a water outlet is arranged on the first transition connecting plate, a water outlet or a water inlet is arranged on the second transition connecting plate, and the position of the water outlet is lower than that of the water inlet; the front side plate and the rear side plate are respectively connected with the upper end cover, the lower end cover, the first transition connecting plate and the second transition connecting plate;
a stator is arranged in the pump shell and is sleeved on the rotating shaft, the upper end and the lower end of the cross section of the stator are in an arc shape with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are both smaller than the arc length of a semicircle with the radius of R, the arc length of the upper end arc and the arc length of the lower end arc of the cross section of the stator are larger than the arc distance between the inner edges of two adjacent blade plates, and the left end line and the right end line of the cross section of the stator are respectively used for connecting the upper end arc and the lower end arc of the cross section;
the pump shell is internally provided with a rotor, the rotor comprises a front circular plate, a rear circular plate and a plurality of blades connected between the front circular plate and the rear circular plate, all the blades are distributed along the circumferential direction, and in the rotating process of the rotor, the inner edge of each blade is in clearance fit with the upper arc surface and the lower arc surface of the stator; the water inlet and outlet of the inner edge and the outer edge of each blade plate have time difference; the side surface of the rotor is of an unsealed structure, and the left end surface and the right end surface of the stator are communicated with the space outside the rotor; the front circular plate is positioned at a gap between the front end surface of the stator and the front side plate, and the front end surface of the stator, the front circular plate of the rotor and the front side plate are closely arranged in a non-contact manner along the front-back direction; the rear circular plate is positioned in a gap between the rear end face of the stator and the rear side plate, the rear end face of the stator, the rear circular plate of the rotor and the rear side plate are closely arranged in a non-contact manner along the front-rear direction, the rotating shaft penetrates through the front circular plate and the rear circular plate, the front circular plate and the rear circular plate are fixedly connected with the rotating shaft, and the rotating shaft is connected with the front side plate and the rear side plate through bearings;
a water inlet is arranged on the transition connecting plate corresponding to the opening direction of the blade plate, and the transition connecting plate is a first transition connecting plate or a second transition connecting plate; an exhaust channel is arranged at the upper end cover close to the water inlet, and an air inlet channel is arranged at the upper end cover close to the water outlet.
7. The high efficiency water turbine as set forth in claim 6, wherein: the radius of the arc-shaped upper end cover part is equal to that of the arc-shaped lower end cover part, the arc-shaped upper end cover part and the arc-shaped lower end cover part are concentric circles, and the outer edge of the vane plate slides along the inner wall of the pump shell.
8. The high efficiency water turbine as claimed in claim 6 or 7, wherein: and the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the first transition connecting plate form a water inlet channel or a water outlet channel, and the upper end cover, the lower end cover, the front side plate and the rear side plate on the outer side of the second transition connecting plate form a water outlet channel or a water inlet channel.
9. The high efficiency water turbine as set forth in claim 6, wherein: and a plurality of annular reinforcing ribs are also distributed along the front and back directions, and each reinforcing rib is connected with each blade plate along the circumferential direction.
10. A high efficiency water turbine as claimed in claim 6 or 9, wherein: each blade plate is in an involute arc shape.
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| CN201921486863.9U CN211448877U (en) | 2019-09-09 | 2019-09-09 | High-efficiency water turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513230A (en) * | 2019-09-09 | 2019-11-29 | 王德志 | A kind of high-efficiency water turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110513230A (en) * | 2019-09-09 | 2019-11-29 | 王德志 | A kind of high-efficiency water turbine |
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