CN102230437A - Water gravity water turbine generator set - Google Patents
Water gravity water turbine generator set Download PDFInfo
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- CN102230437A CN102230437A CN201110156622XA CN201110156622A CN102230437A CN 102230437 A CN102230437 A CN 102230437A CN 201110156622X A CN201110156622X A CN 201110156622XA CN 201110156622 A CN201110156622 A CN 201110156622A CN 102230437 A CN102230437 A CN 102230437A
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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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Abstract
The invention relates to a water gravity water turbine generator set mainly comprising water gravity water turbines (1-11), transmission mechanisms (13-16), a water supply system and a generator (17). The water gravity water turbine generator set is characterized in that the water gravity water turbines of level 3 or more than level 3, the transmission mechanisms, the water supply system and the generator mutually form a multi-level water gravity water turbine generator set or a self-circulation multi-level water gravity water turbine generator set; the transmission mechanisms are arranged between the water gravity water turbines and the generator; each transmission mechanism mainly consists of a transmission shaft, a gear box and a belt driving assembly or mainly consists of a transmission shaft, a gear box and a chain driving assembly; and the water supply system is a water supply pipeline of a city water supply system, or the water supply system is a water circulation system composed of a seal pot, a water tank (19), a water pump (18) and a water pipe. According to the invention, a 'free' clean energy technology for generating power by utilizing specific gravity difference of water and air is achieved.
Description
Technical field
The present invention relates to a kind of hydroelectric power field, particularly a kind of water gravitational water turbine generator group.
Technical background
Existing hydraulic power generation technology all is to be cost with the potential energy, the kinetic energy that consume head, and not only cost height, efficient are low, also can not satisfy the demand of people to the energy far away.
Prior art: my number of patent application is 200910037472.3 " a kind of hydraulic power generation technology of not kinetic energy loss ", between higher level's aqueduct and subordinate's aqueduct, be provided with multi-stage sealed jar, in air is arranged, the current of upstream conduit pipe flow into hermetically sealed can through inlet, pass the air in the hermetically sealed can, after the water turbine acting in hermetically sealed can, fall into the pond of hermetically sealed can, the outlet at the bottom of the final stage hermetically sealed can is connected with the downstream conduit pipe.Because the air pressure in the hermetically sealed can is identical with hydraulic pressure, pressure and the object in the hermetically sealed can in the hermetically sealed can are irrelevant, so the water turbine in the hermetically sealed can not make the original kinetic energy of current reduce.This invention is a kind of " freely " clean energy technology, but lacks partly crucial detail, with the requirement of product practicability, industrialization certain distance is arranged.
The objective of the invention is this technology is specific, practicability, and then realize industrialization.
Summary of the invention
The present invention is achieved in that a kind of water gravitational water turbine generator group, mainly comprise water gravitational water turbine (1 to 11), driving mechanism (13 to 16), water system and generator (17), it is characterized in that water gravitational water turbine and driving mechanism, water system, the generator more than 3 grades or 3 grades formed multistage water gravitational water turbine generator group or the multistage water gravitational water of self-loopa turbine generator group jointly; Driving mechanism is located between water gravitational water turbine and the generator; Driving mechanism mainly is made up of transmission shaft, gear-box, band transmitting assemblies, and perhaps, driving mechanism mainly is made up of transmission shaft, gear-box, chain kit; The serve a town with water water supply line of system of water system, perhaps, the water circulation system that water system is made of jointly hermetically sealed can, water tank (19), water pump (18) and water pipe.
Water gravitational water turbine mainly comprises: hermetically sealed can (1), Pelton wheel (2), manger board (3), sealing water conduit (6), rotating shaft (7), Sealing (8) and water pipe (11), it is characterized in that: 3/4 above position of the top of hermetically sealed can or tank body height is provided with water inlet (4), and 1/4 of the bottom of hermetically sealed can or tank body height is provided with water outlet (5) with upper/lower positions; Manger board is a camber line shape manger board, and manger board is welded into an integral body as the some of hermetically sealed can with tank body, perhaps, is provided with O-ring seal between manger board and the tank body, and manger board is fixed on the tank body with screw; Pelton wheel is located in the hermetically sealed can, and the blade of water turbine is facing to the arc of manger board, and the blade of water turbine and the gap between the manger board are less than 5cm; The one or both sides of Pelton wheel are provided with the sealing water conduit; Water turbine is fixed in the rotating shaft, and rotating shaft is positioned the position of the upper half part of tank body by bearing, is provided with Sealing between rotating shaft and the tank body; Sealing mainly comprises change, sealing seat, seal ring; Intake pipe is provided with elbow (9), and perhaps, the some of intake pipe is lower than the water outlet of hermetically sealed can.
Working principle: when water flows into close jar, because intake pipe is provided with elbow, the air of hermetically sealed can not discharged from intake pipe, the above air of water outlet water level is retained in the hermetically sealed can, current flow into hermetically sealed can through water inlet, pass the air in the hermetically sealed can, fall into the bucket of Pelton wheel, manger board hinders current and flows out from bucket, make a side of water turbine possess more water, because the both sides of Pelton wheel vary in weight the water turbine rotation, current fall into the pond of hermetically sealed can bottom, flow out from water outlet at last.Because the air pressure in jar is identical with hydraulic pressure, water turbine pressure everywhere is identical, and the power that therefore promotes the water turbine rotation is the proportion difference of water and air.The ordinary water turbine generator then is that pressure difference with the current upstream and downstream is a power.
Because the air pressure in the hermetically sealed can is identical with hydraulic pressure, pressure and the object in the hermetically sealed can in the hermetically sealed can are irrelevant, therefore the water turbine in the hermetically sealed can not make the original kinetic energy of current reduce, the kinetic energy of the current of hermetically sealed can inlet is identical with the kinetic energy of the current of hermetically sealed can outlet, and current flow by the pressure reduction of inlet with outlet.Therefore also can be referred to as the not hydraulic power generation technology of kinetic energy loss.
Manger board in the hermetically sealed can and O-ring seal are fixed on the tank body with screw, can put maintenance and the maintenance of just carrying out equipment.When Pelton wheel breaks down, can open manger board, Pelton wheel and associated component are keeped in repair.
The top of hermetically sealed can is provided with water pipe support (10), with the fixing elbow of water pipe and water pipe.Intake pipe is provided with elbow, and perhaps, the some of intake pipe is lower than the water outlet of hermetically sealed can, can avoid the air in the hermetically sealed can to discharge from intake pipe.
The tank body of hermetically sealed can is made with metallic material or plastics, and manger board is made with metal or plastic cement or toughened glass.If manger board transparent material manufacturing, the situation that can also observe hermetically sealed can inside by manger board also can be opened a peep hole in a side of tank body, and peep hole is sealed with tempered glass.
If the bucket of water turbine is longer, the diameter of inlet water pipe is bigger, also can set up guide plate or honeycomb duct, makes current accurately fall into bucket.
Under the situation about running well, the liquid level in the blade of Pelton wheel and pond, hermetically sealed can bottom has certain distance, if the part blade of water turbine is immersed in the pond of hermetically sealed can bottom, then can influence the rotation efficiency of water turbine.
The sealing of water turbine rotating shaft is very important, prevent that air from leaking from the jointing of rotating shaft and hermetically sealed can.Sealing is located between the axis hole of rotating shaft and hermetically sealed can, and Sealing mainly comprises change, sealing seat, seal ring, and sealing seat is provided with sealing water guide hole, and the aperture of sealing water guide hole upwards.On Pelton wheel, establish a sealing water conduit, water is guided in the sealing water guide hole of sealing seat.Under the effect that seal ring is pressed in sealing water and hermetically sealed can, keep contacting, produce the effect of sealing with change.
Under the prerequisite of not considering linear loss and bend loss, current do not lose pressure and kinetic energy through hermetically sealed can and water turbine, Pelton wheel relies on the proportion difference rotation of water and air, can infinitely increase the quantity of hermetically sealed can and Pelton wheel in theory, thereby realize the not multistage generating of kinetic energy loss.Therefore this is a kind of " freely " clean energy technology that utilizes the proportion difference generating of water and air.
Water gravitational water turbine more than 3 grades or 3 grades and transmission system, water system, generator are formed multistage water gravitational water turbine generator group jointly.
Applicating example:
A kind of multistage water gravitational water turbine generator group, mainly comprise: water gravitational water turbine, driving pulley (13), driving belt (14), driven pulley (15), gear-box (16), generator (17) and water supply line is characterized in that the serve a town with water water supply line of system of water supply line; Water gravitational water turbine more than 3 or 3 is set up in parallel, rotating shaft between the water gravitational water turbine connects with connection orchid (12), the water inlet of first order water gravitational water turbine is connected with the upstream of water supply line by the water pipe that is provided with elbow, the water inlet of subordinate's water gravitational water turbine is connected with the water outlet of upper level gravitational water turbine by the water pipe (11) that is provided with elbow (9), and the water outlet of final stage gravitational water turbine is connected with the downstream of water supply line; The rotating shaft of final stage gravitational water turbine is provided with driving pulley, and the input shaft of gear-box is provided with driven pulley, is with driving belt between driving pulley and the driven pulley, driving belt Idle wheel tensioning, and the diameter of driving wheel is bigger than follower; The output shaft of gear-box is connected with adpting flange with the rotating shaft of generator, and perhaps, gear-box and generator are coaxial.Because water turbine relies on the proportion difference of water and air to promote, the rotating speed of water turbine is lower, therefore rotating speed will be improved the rotating speed requirement that just can reach generator, pulley assemblies and gear-box all have the effect of amplifying rotating speed, and the process of its power transmission is the process that speedup subtracts square.
The multistage water gravitational water of a kind of self-loopa turbine generator group, mainly comprise: water gravitational water turbine, driving pulley (13), driving belt (14), driven pulley (15), gear-box (16), generator (17), water pump (18) and water tank (19), it is characterized in that the water gravitational water turbine more than 3 or 3 is set up in parallel, and forms a water circulation system with water pump, water tank, water pipe; Rotating shaft between the water gravitational water turbine connects with connection is blue, the water inlet of first order water gravitational water turbine is connected with the outlet of water pump by the water pipe (11) that is provided with elbow (9), the water inlet of subordinate's water gravitational water turbine is connected with the water outlet of upper level gravitational water turbine by the water pipe that is provided with elbow, the water outlet of final stage gravitational water turbine is connected with the inlet of water tank by water pipe, and the outlet of water tank is connected with the inlet of water pump by pipeline; The rotating shaft of final stage gravitational water turbine is provided with driving pulley, and the input shaft of gear-box is provided with driven pulley, is with driving belt between driving pulley and the driven pulley, driving belt Idle wheel tensioning, and the diameter of driving wheel is bigger than follower; The output shaft of gear-box is connected with adpting flange with the rotating shaft of generator, and perhaps, gear-box and generator are coaxial.During pump working, current flow to water gravitational water turbine from the tank flow water pump from water pump, and reflow tank is again realized the reciprocation cycle of working water.Water tank can be open water tank, also can be closed water tank.
As torque motor, gear-box and generator can be made an integral body.
The belt wheel transmitting assemblies can substitute with sprocket driving assembly or gear-driven assembly.If adopt sprocket driving, then need not Idle wheel, but the cost of sprocket driving assembly be higher.Because the motion of the polygonal of chain link so instantaneous transmission ratio changes, can produce certain influence to the current waveform of generator output.
Description of drawings
Fig. 1, Fig. 2, Fig. 3 are the first embodiment of the invention structural representation
Fig. 4 is the second embodiment of the invention structural representation
Fig. 5 is the third embodiment of the invention structural representation
Embodiment
Below in conjunction with accompanying drawing and the present invention is further described.
First embodiment
Referring to Fig. 1 overall structure side schematic view, Fig. 2 Pelton wheel stereogram, Fig. 3 overall structure front schematic view.A kind of water gravitational water turbine mainly comprises: hermetically sealed can (1), Pelton wheel (2), manger board (3), sealing water conduit (6), rotating shaft (7), Sealing (8) and water pipe (11).The top of hermetically sealed can is provided with water inlet (4), and the position of a side of hermetically sealed can, close bottom is provided with water outlet (5); Manger board is a camber line shape manger board, and manger board is provided with O-ring seal as the some of hermetically sealed can between manger board and the tank body, and manger board is fixed on the tank body with screw; Pelton wheel mainly is made up of 12 arc shaped blades, two end caps and wheel hub, and Pelton wheel is located in the hermetically sealed can, and the blade of water turbine is facing to the arc of manger board, and the blade of water turbine and the gap between the manger board are 3mm; The one or both sides of Pelton wheel are provided with the sealing water conduit; Water turbine is fixed in the rotating shaft, and rotating shaft is positioned the position of the upper half part of tank body by bearing, is provided with Sealing between rotating shaft and the tank body; Sealing mainly comprises change, sealing seat, seal ring; Intake pipe is provided with elbow (9), and the elbow of intake pipe is fixed on the top of hermetically sealed can with support (10).
Second embodiment
Referring to Fig. 4, a kind of multistage water gravitational water turbine generator group mainly comprises: water gravitational water turbine, driving pulley (13), driving belt (14), driven pulley (15), gear-box (16), generator (17) and water supply line.The serve a town with water water supply line of system of water supply line; Water gravitational water turbine more than 3 or 3 is set up in parallel, rotating shaft between the water gravitational water turbine connects with adpting flange (12), the water inlet of first order water gravitational water turbine is connected with the upstream of water supply line by the water pipe (11) that is provided with elbow (9), the water inlet of subordinate's water gravitational water turbine is connected with the water outlet of upper level gravitational water turbine by the water pipe that is provided with elbow, and the water outlet of final stage gravitational water turbine is connected with the downstream of city supply water pipeline; The rotating shaft of final stage gravitational water turbine is provided with driving pulley, and the input shaft of gear-box is provided with driven pulley, is with driving belt between driving pulley and the driven pulley, driving belt Idle wheel tensioning, and the diameter of driving wheel is bigger than follower; The output shaft of gear-box is connected with adpting flange with the rotating shaft of generator.Because water turbine relies on the proportion difference of water and air to promote, the rotating speed of water turbine is lower, and pulley assemblies and gear-box all have the effect of amplifying rotating speed, and the process of its power transmission is the process that speedup subtracts square.All the other do not state part, with first embodiment, no longer repeat.
The 3rd embodiment
Referring to Fig. 5, the multistage water gravitational water of a kind of self-loopa turbine generator group mainly comprises: water gravitational water turbine, driving pulley (13), driving belt (14), driven pulley (15), gear-box (16), generator (17), water pump (18) and water tank (19).Water gravitational water turbine more than 3 or 3 is set up in parallel, and forms the water circulation system of a sealing with water pump, water tank, water pipe; Rotating shaft between the water gravitational water turbine connects with adpting flange, the water inlet of first order water gravitational water turbine is connected with the outlet of water pump by the water pipe (11) that is provided with elbow (9), the water inlet of subordinate's water gravitational water turbine is connected with the water outlet of upper level gravitational water turbine by the water pipe that is provided with elbow, the water outlet of final stage gravitational water turbine is connected with the inlet of water tank by water pipe, and the outlet of water tank is connected with the inlet of water pump by pipeline; The rotating shaft of final stage gravitational water turbine is provided with driving pulley, and the input shaft of gear-box is provided with driven pulley, is with driving belt between driving pulley and the driven pulley, driving belt Idle wheel tensioning, and the diameter of driving wheel is bigger than follower; The output shaft of gear-box is connected with adpting flange with the rotating shaft of generator.During pump working, current flow to water gravitational water turbine from the tank flow water pump from water pump, and reflow tank is again realized the reciprocation cycle of working water.All the other do not state part, with first embodiment, no longer repeat.
Claims (6)
1. water gravitational water turbine generator group, mainly comprise water gravitational water turbine (1 to 11), driving mechanism (13 to 16), water system and generator (17), it is characterized in that water gravitational water turbine and driving mechanism, water system, the generator more than 3 grades or 3 grades formed multistage water gravitational water turbine generator group or the multistage water gravitational water of self-loopa turbine generator group jointly; Driving mechanism is located between water gravitational water turbine and the generator; Driving mechanism mainly is made up of transmission shaft, gear-box, band transmitting assemblies, and perhaps, driving mechanism mainly is made up of transmission shaft, gear-box, chain kit; The serve a town with water water supply line of system of water system, perhaps, the water circulation system that water system is made of jointly hermetically sealed can, water tank (19), water pump (18) and water pipe.
2. according to the described water gravitational water of claim 1 turbine, mainly comprise: hermetically sealed can (1), Pelton wheel (2), manger board (3), sealing water conduit (6), rotating shaft (7), Sealing (8) and water pipe (11), it is characterized in that: 3/4 above position of the top of hermetically sealed can or tank body height is provided with water inlet (4), and 1/4 of the bottom of hermetically sealed can or tank body height is provided with water outlet (5) with upper/lower positions; Manger board is a camber line shape manger board, and manger board is welded into an integral body as the some of hermetically sealed can with tank body, perhaps, is provided with O-ring seal between manger board and the tank body, and manger board is fixed on the tank body with screw; Pelton wheel is located in the hermetically sealed can, and the blade of water turbine is facing to the arc of manger board, and the blade of water turbine and the gap between the manger board are less than 5cm; The one or both sides of Pelton wheel are provided with the sealing water conduit; Water turbine is fixed in the rotating shaft, and rotating shaft is positioned the position of the upper half part of tank body by bearing, is provided with Sealing between rotating shaft and the tank body; Intake pipe is provided with elbow (9), and perhaps, the some of intake pipe is lower than the water outlet of hermetically sealed can.
3. according to the described water gravitational water of claim 2 turbine, it is characterized in that: the liquid level in the blade of Pelton wheel and pond, hermetically sealed can bottom has certain distance.
4. according to the described water gravitational water of claim 2 turbine, it is characterized in that: described Sealing mainly comprises change, sealing seat, seal ring; Sealing seat is provided with sealing water guide hole, and the aperture of sealing water guide hole upwards.
5. according to the described multistage water gravitational water turbine generator group of claim 1, mainly comprise: water gravitational water turbine, driving pulley (13), driving belt (14), driven pulley (15), gear-box (16), generator (17) and water supply line is characterized in that the serve a town with water water supply line of system of water supply line; Water gravitational water turbine more than 3 or 3 is set up in parallel, rotating shaft between the water gravitational water turbine connects with adpting flange (12), the water inlet of first order water gravitational water turbine is connected with the upstream of water supply line by the water pipe that is provided with elbow, the water inlet of subordinate's water gravitational water turbine is connected with the water outlet of upper level gravitational water turbine by the water pipe (11) that is provided with elbow (9), and the water outlet of final stage gravitational water turbine is connected with the downstream of water supply line; The rotating shaft of final stage gravitational water turbine is provided with driving pulley, and the input shaft of gear-box is provided with driven pulley, is with driving belt between driving pulley and the driven pulley, driving belt Idle wheel tensioning, and the diameter of driving wheel is bigger than follower; The output shaft of gear-box is connected with adpting flange with the rotating shaft of generator, and perhaps, gear-box and generator are coaxial.
6. according to the multistage water gravitational water of the described self-loopa of claim 1 turbine generator group, mainly comprise: water gravitational water turbine, driving pulley (13), driving belt (14), driven pulley (15), gear-box (16), generator (17), water pump (18) and water tank (19), it is characterized in that the water gravitational water turbine more than 3 or 3 is set up in parallel, and forms a water circulation system with water pump, water tank, water pipe; Rotating shaft between the water gravitational water turbine connects with adpting flange, the water inlet of first order water gravitational water turbine is connected with the outlet of water pump by the water pipe (11) that is provided with elbow (9), the water inlet of subordinate's water gravitational water turbine is connected with the water outlet of upper level gravitational water turbine by the water pipe that is provided with elbow, the water outlet of final stage gravitational water turbine be connected with the inlet of water tank by water pipe, the outlet of water tank is connected with the inlet of water pump by pipeline; The rotating shaft of final stage gravitational water turbine is provided with driving pulley, and the input shaft of gear-box is provided with driven pulley, is with driving belt between driving pulley and the driven pulley, driving belt Idle wheel tensioning, and the diameter of driving wheel is bigger than follower; The output shaft of gear-box is connected with adpting flange with the rotating shaft of generator, and perhaps, gear-box and generator are coaxial.
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| CN201110156622XA CN102230437A (en) | 2011-06-09 | 2011-06-09 | Water gravity water turbine generator set |
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| CN201110156622XA CN102230437A (en) | 2011-06-09 | 2011-06-09 | Water gravity water turbine generator set |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588186A (en) * | 2012-03-21 | 2012-07-18 | 黄胜发 | Hydro-energy suspended generating device |
| CN102705133A (en) * | 2012-06-26 | 2012-10-03 | 毛雪祥 | Water turbine and generating station using same |
| CN105370484A (en) * | 2015-11-14 | 2016-03-02 | 彭伟成 | Waste water electric generator |
| CN106050533A (en) * | 2016-07-14 | 2016-10-26 | 安徽状元郎电子科技有限公司 | Tubular-turbine hydro-generator |
| CN106801450A (en) * | 2016-12-23 | 2017-06-06 | 广西芮芽科技有限公司 | Secondary water-supply equipment |
| CN107178459A (en) * | 2017-06-14 | 2017-09-19 | 滁州职业技术学院 | A kind of construction drainage structure |
| CN108855433A (en) * | 2018-07-10 | 2018-11-23 | 曹蕾 | A kind of mini ball mill apparatus of energy conservation |
| CN110145424A (en) * | 2019-05-17 | 2019-08-20 | 天津天发总厂机电设备有限公司 | Novel water turbine generator set |
| CN111594371A (en) * | 2020-05-27 | 2020-08-28 | 葛孝宜 | Water wheel power generation device |
| CN112992391A (en) * | 2021-03-05 | 2021-06-18 | 哈尔滨工程大学 | Energy recycling system adopting condensed water collecting device |
| CN113685304A (en) * | 2021-09-24 | 2021-11-23 | 本溪龙新矿业有限公司 | Power generation mechanism of filling slurry |
| CN114077132A (en) * | 2021-10-11 | 2022-02-22 | 陈淇桦 | Multimedia teaching projector |
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2011
- 2011-06-09 CN CN201110156622XA patent/CN102230437A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102588186B (en) * | 2012-03-21 | 2013-11-27 | 中阳建设集团有限公司 | Hydro-energy suspended generating device |
| CN102588186A (en) * | 2012-03-21 | 2012-07-18 | 黄胜发 | Hydro-energy suspended generating device |
| CN102705133A (en) * | 2012-06-26 | 2012-10-03 | 毛雪祥 | Water turbine and generating station using same |
| WO2014000349A1 (en) * | 2012-06-26 | 2014-01-03 | Mao Xuexiang | Water turbine and power station with same |
| CN105370484A (en) * | 2015-11-14 | 2016-03-02 | 彭伟成 | Waste water electric generator |
| CN106050533A (en) * | 2016-07-14 | 2016-10-26 | 安徽状元郎电子科技有限公司 | Tubular-turbine hydro-generator |
| CN106801450B (en) * | 2016-12-23 | 2019-06-04 | 安徽兴安电气设备股份有限公司 | Secondary water-supply equipment |
| CN106801450A (en) * | 2016-12-23 | 2017-06-06 | 广西芮芽科技有限公司 | Secondary water-supply equipment |
| CN107178459A (en) * | 2017-06-14 | 2017-09-19 | 滁州职业技术学院 | A kind of construction drainage structure |
| CN107178459B (en) * | 2017-06-14 | 2018-12-28 | 滁州职业技术学院 | A kind of construction drainage structure |
| CN108855433A (en) * | 2018-07-10 | 2018-11-23 | 曹蕾 | A kind of mini ball mill apparatus of energy conservation |
| CN110145424A (en) * | 2019-05-17 | 2019-08-20 | 天津天发总厂机电设备有限公司 | Novel water turbine generator set |
| CN111594371A (en) * | 2020-05-27 | 2020-08-28 | 葛孝宜 | Water wheel power generation device |
| CN112992391A (en) * | 2021-03-05 | 2021-06-18 | 哈尔滨工程大学 | Energy recycling system adopting condensed water collecting device |
| CN113685304A (en) * | 2021-09-24 | 2021-11-23 | 本溪龙新矿业有限公司 | Power generation mechanism of filling slurry |
| CN114077132A (en) * | 2021-10-11 | 2022-02-22 | 陈淇桦 | Multimedia teaching projector |
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Application publication date: 20111102 |