CN103953496A - Tidal current energy capturing mechanism and power generation assembly - Google Patents
Tidal current energy capturing mechanism and power generation assembly Download PDFInfo
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- CN103953496A CN103953496A CN201410206380.4A CN201410206380A CN103953496A CN 103953496 A CN103953496 A CN 103953496A CN 201410206380 A CN201410206380 A CN 201410206380A CN 103953496 A CN103953496 A CN 103953496A
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The invention discloses a tidal current energy capturing mechanism and a power generation assembly. The tidal current energy capturing mechanism comprises a main shaft, a runner, supporting rod pieces and overturning vanes, wherein the runner is fixedly arranged on the main shaft; at least four supporting rod pieces are evenly arranged around the runner; each supporting rod piece is provided with overturning vanes which can freely rotate within the range from axial direction to 90 degree in the radial direction of the runner; two overturning limit positions are provided with spacing rods; each overturning vane comprises a sleeve, a main panel and an upstream panel, wherein the front side of the main panel can freely overturn to the position vertical to the stream under the upstream state; the front side of the main panel can automatically overturn for 90 degrees to the position parallel to the stream under the against-the-current state. The invention also discloses one set of power generation assembly. Theoretically, the stand-alone power can be used for realizing megawatt-level power generation. The manufacture cost is low, and the manufacture cost of unit power is equal to that of the traditional wind power generation assembly. According to a lifting mechanism carried by the power generation assembly, later-stage maintenance and repair can be simplified.
Description
Technical field
This scheme relates to a kind of tidal current energy generating equipment, specifically a kind ofly utilizes the device that in ocean, marine tidal-current energy generates electricity.
Background technique
The patent of invention that the applicant applies for a kind of power generation device from sea current in 2011, application number is 2011102370993, part-structure is wherein disclosed, mainly comprise generator, belt pulley, belt, blade and T shape support, generator is wherein driven and is generated electricity by belt pulley, T shape support is installed on belt, on T shape support, blade is installed, between blade and T shape support, connect by folding.When this device uses, belt arranges along the direction of ocean current, and blade is above vertical with the direction of ocean current does useful work under the promotion of ocean current, and blade is below parallel with ocean current direction, and adverse current is returned.The object that realization is rotated with movable belt pulley, and then drive generator generating.This device utilizes ocean current to generate electricity to the thrust of blade, can realize reasonable electricity generate function, but there is certain impact in the process using in reality, be mainly manifested in, in blade conversion direction, between blade and T shape support, can produce and impact, belt wheel often rotates a circle and all can overturn twice simultaneously, weares and teares more serious.Owing to there is belt mechanism, so the foreign material such as the sandstone in ocean current can make belt and the rotating shaft serious wear in driving mechanism, even there will be the phenomenon of sideslip simultaneously, need further to improve first perfect.
The power generating equipment of said structure, due to the restriction of structure, is difficult to realize other scale power generation demand of MW class.The R&D direction of present marine tidal-current energy power generating equipment is: high-power, especially can realize other Electricity Generation equipment of MW class; Low cost, comprises that the maintenance cost in fabricating cost and later stage all should be low as much as possible; Make installation and later period maintenance convenient.
Summary of the invention
In order to solve the deficiencies in the prior art, the invention provides a kind of marine tidal-current energy capture mechanism and electricity generating device, first be a kind of equipment can scale generating electricity by way of merging two or more grid systems, the power of unit can be realized other generating of MW class in theory, the 2nd,, fabricating cost is low, and the fabricating cost of specific power and the cost of existing wind power plant maintain an equal level; The 3rd,, rational in infrastructure, the elevator mechanism carrying by himself, is all simplified the maintenance in later stage.
The technical solution adopted for the present invention to solve the technical problems is: a kind of marine tidal-current energy capture mechanism, comprise main shaft, runner, supporting rod and upset blade, and it is characterized in that,
Described runner connects by key or is welded to connect and is fixed on main shaft, and be circumferentially furnished with uniformly at least four supporting rods at described runner, and on described supporting rod, being provided with can be at runner shaft to the upset blade freely rotating to 90 degree radially, and is provided with position-limited lever at two limit positions that overturn of the blade that overturns;
Described upset blade comprises sleeve, main panel and is arranged on the panel that meets water for current promotion upset blade change original state of outer end, described sleeve activity is nested with on supporting rod, and mode and sleeve shape that described main panel connects by welding or screw are integral; And
Described main panel front can automatic turning under the state of meeting water to the position vertical with current, described main panel front can turn 90 degrees to the position parallel with current by automatic turning under state against the current.
Described supporting rod is the two bars along runner shaft to paired setting, the top of two supporting rods is fastenedly connected by connecting sheet, and be provided with at the middle part of described supporting rod vertically arrange for limiting the position-limited lever of upset blade limit position, and a side of described main panel is fixedly connected with sleeve, and described in meet water panel be from upset blade tip to one side bending form.
Described upset blade is for having some strength and corrosion resistant metal blade or alloy vane, and is inlaid with the bearing shell element being rotatably assorted with supporting rod in upset blade sleeve.
Described supporting rod is single pole, fix one at the top of described supporting rod along runner shaft to the position-limited lever arranging, and be respectively equipped with at the two ends of described position-limited lever along the symmetrically arranged dead axle of supporting rod or dead axle cover, and described dead axle or dead axle cover be arranged in parallel with described supporting rod, the dorsal part centre of described upset blade is provided with rotating shaft cover or the rotating shaft being rotatably assorted with described dead axle or dead axle cover, and be respectively equipped with at the two ends of described position-limited lever to upset blade against the current state carry out the second spacing position-limited lever.
A kind of tidal current energy generating equipment, comprises framework, marine tidal-current energy capture mechanism, driving mechanism and generator, it is characterized in that,
Described marine tidal-current energy capture mechanism is above-mentioned marine tidal-current energy capture mechanism;
Described framework comprise chassis and be welded on chassis for supporting the column of miscellaneous part, described chassis is the housing with inner chamber, and top and bottom on described chassis are respectively equipped with air ports and intake-outlet, and are respectively arranged with valve on described air ports and intake-outlet; On described chassis, be provided with through hole and the fixing drill bit of using for fixing use, described drill bit passes through hole and inserts in seabed;
Main shaft two ends in described marine tidal-current energy capture mechanism are arranged on the column of framework by rotating element and in level, at least two group marine tidal-current energy capture mechanisms are symmetricly set on chassis upside;
Described driving mechanism comprises differential mechanism, coupling and speed increaser, described in two, main shaft extends and is connected respectively to the input end of a differential mechanism to centre, the output terminal of described differential mechanism is connected to speed increaser by axle and coupling, described speed increaser is connected with generator, and described generator is positioned at the top of whole electricity generating device.
Also comprise a fixing assisting agency, described fixing assisting agency is a vertical marine tidal-current energy capture mechanism of arranging, socket connection is carried out by square axle structure or spline structure and described drill bit top in described main shaft lower end wherein.
Also comprise a lifting mechanism, described lifting mechanism comprises hawser, winch, guide cylinder and rope sheave, described guide cylinder carries out socket connection by square axle structure or spline structure and described drill bit, described winch is fixed in the installing space of electricity generating device, and the top of guide cylinder walked around one end after the rope sheave on framework and is connected to by described hawser, and the other end is wrapped in winch.
The invention has the beneficial effects as follows:
1, easy for installation, first in the factory building of land, assemble complete, hollow chassis makes the whole device can be across the sea floating, be dragged to infield with towboat, then by after the air ports venting on chassis, intake-outlet water inlet, whole device sinks, and utilizes diving principle, finally fall into seabed, and drill bit can be squeezed in sea bed and is fixed by fixing assisting agency.
2, operate steadily, marine tidal-current energy capture mechanism, in the process of operation, utilizes ocean current to upset the promoting of blade, and return artomatically folded, without impacting, operates steadily.Meanwhile, used differential mechanism in transmission system, made each marine tidal-current energy capture mechanism can realize nonsynchronous operation, in power generation process, the stability of whole device is fine.
3, marine tidal-current energy capture mechanism wherein coordinates transmission system can realize the application of scale, can organize in theory simultaneously more and use, and final all power is all input in generator, can realize in theory other unit generating scale of MW class.
4, can way traffic, utilizing ocean current commutates (flood tide or ebb) for general every six hours once, and corresponding upset blade carries out conversion position, when ocean flood tide and ebb tide, can realize generating, the realization of this function is to realize by the conversion of upset blade, simple.
5, easy to maintenance, can realize the lifting of self by the winch in equipment and hawser, and in lifting process, not need extra lifting ship, reduce maintenance cost.
So this device is the equipment that a kind of comprehensive comparison is good, consider the factors of manufacture, installation, maintenance and long-term generating.
Brief description of the drawings
Fig. 1 is the stereogram of marine tidal-current energy capture mechanism pattern one.
Fig. 2 is the sectional view of blade part of overturning in Fig. 1.
Fig. 3 is the plan view of Fig. 1.
Fig. 4 is the stereogram of marine tidal-current energy capture mechanism pattern two.
Fig. 5 is the plan view of Fig. 4.
Fig. 6 is the structural representation of electricity generating device.
Fig. 7 is installation process schematic diagram.
Fig. 8 is chassis inflation/deflation sink-float principle figure.
Fig. 9 is the schematic diagram of differential mechanism.
Figure 10 is the scheme of installation of lifting mechanism at this device.
Figure 11 is lifting process schematic diagram.
Embodiment
Be described in detail below in conjunction with the pattern shown in Fig. 1 to Figure 11.A kind of tidal current energy generating equipment, comprises framework 1, marine tidal-current energy capture mechanism 2, driving mechanism 3 and generator 4.
Marine tidal-current energy capture mechanism 2, comprises main shaft 21, runner 22, supporting rod 23 and upset blade 24.There are two kinds of main structure forms.
As Fig. 1 to Fig. 3, main shaft 21 is a long axis, for adopting stainless steel or other to carry out antiseptic steel axial workpiece.Runner 22 is a disk part by performing, and runner 22 connects by key or is welded to connect and is fixed on main shaft, forms an entirety, synchronously rotates, and wherein the quantity of runner can according to circumstances arrange multiplely, and quantity is more, and generated output is larger.At the supporting rods 23 that are circumferentially furnished with uniformly six pairs of paired settings of each runner, above-mentioned supporting rod 23 between two one group along runner shaft to paired setting, the top of two supporting rods is fastenedly connected by connecting sheet 25, forms the profile of a rectangle, has stronger intensity.And at the middle part of two supporting rods welded limiting bar 26, for limiting the flip angle of upset blade, make the upset blade on supporting rod can be at runner shaft to radially freely rotating within the scope of 90 degree, as shown in Figure 1.
As shown in Figure 2, this upset blade 24 comprises sleeve 241, main panel 242 and is arranged on promoting upset blade for current and changing the panel 243 that meets water of original state of outer end.Main panel 242 is dull and stereotyped, one side is welded on sleeve, and described in meet water panel 243 for forming to a side bending from upset blade tip, conventionally can make formation by the technique of corrosion resistant plate bending, main panel 242 forms one by direct parallel with sleeve 241 welding of stiffening rib 244, above-mentioned sleeve activity is nested with on supporting rod, and uses the connecting sheet 25 at top spacing, and the blade that overturns like this can rotate around supporting rod.Hold intelligible, described main panel front under the state of meeting water, under the panel that meets water auxiliary, can automatic turning to the position vertical with current, this position is acting position.Described main panel front, under state against the current, because main panel is stressed, can turn 90 degrees to the position parallel with current by automatic turning, and this state is return state, does not do manual work.
Easily understand, because said structure is all that long period of soaking is in ocean, so adopt the metal such as stainless steel, titanium magnesium alloy or the alloy material of seawater corrosion resistance, and in upset blade sleeve, be inlaid with the bearing shell element being rotatably assorted with supporting rod, make to overturn blade rotation freely with ensure working life.
Concrete, the umklapp process of upset blade, can be with reference to the schematic diagram shown in figure 3 with the relation of marine tidal-current energy.
Fig. 4, Fig. 5 are another distortion of marine tidal-current energy capture mechanism, and its structural type is:
Described supporting rod 23 ' is single pole, is directly welded on runner 22 '.The top of supporting rod fixes one along runner shaft to the position-limited lever 26 ' arranging, position-limited lever is perpendicular to supporting rod, and be respectively equipped with at the two ends of position-limited lever along the symmetrically arranged dead axle cover of supporting rod, and dead axle cover be arranged in parallel with described supporting rod, the dorsal part centre of described upset blade 24 ' is installed a rotating shaft by two axle beds, and the distance of this rotating shaft to two side is unequal, specifically, this rotating shaft is greater than the distance of distance upset blade inside edge apart from the distance of upset blade outer edge, form an eccentric structure, in figure 5.This rotating shaft and dead axle cover are rotatably assorted, and form the flexible connection 27 of a rotation, and the blade that makes to overturn can rotate around rotating shaft, wherein under the effect of eccentric structure, make umklapp process freer, ensure simultaneously in acting process, upset blade is in steady state.Meanwhile, be respectively equipped with at the two ends of position-limited lever upset blade carried out to the second position-limited lever 28 of longitudinal spacing, make to overturn blade under the direction of following current in minimum fold plane cumuliformis state, reduce reverse resistance, prevent its swing simultaneously.Upset blade has two kinds of rollover states, and one is the state (Fig. 5 upper half part) of acting, and another kind is the state (shown in Fig. 5 lower half portion) of adverse current return, under acting state, developed area is as far as possible large, and in return process, fluoran stream surface is long-pending as far as possible little.For realizing the automatic rotating of upset blade, a gap 245 is opened on top at upset blade 24 ', then by the flat board of gap both sides to monosymmetric bending, form the panel 243 ' that meets water that a Y-shaped is arranged, it is the panel that meets water of a Y shape, in the time having water impact to meet water panel, due to flow action, coordinate the eccentric structure of upset blade rotor, vertical and the water (flow) direction of the face of blade that makes to overturn, as Fig. 5 upper half part, in this course, when original state, meet water panel in action, then whole panel all plays a role, so upset is very fast.
Described framework 1 comprise chassis 11 and be welded on chassis for supporting the column 12 of miscellaneous part, chassis 11 is for having the housing of inner chamber, can adopt stainless-steel sheet to be welded, top and bottom on described chassis 11 are respectively equipped with air ports 13 and intake-outlet 14, and be respectively arranged with valve on air ports and intake-outlet 14, make the buoyancy on chassis adjustable by the mode of inflation/deflation, the principle of similar submarine, while being air in inside, chassis is buoyancy aid, float on the surface, in cavity when water seawater, sink, form a chassis, sit idly on sea bed.Be designed to the projection of some chock shapes at the lower surface on chassis 11, can carry out combination with irregular seabed.
Be provided with the through hole 15 for fixing use in four corners on described chassis 11, and in through hole, be nested with a drill bit 5, this drill bit 5 through through hole and can insertion seabed gradually under the driving of fixing assisting agency in, realize the fixing of chassis, finally realize the fixing of whole device, concrete fixation procedure will describe in the description below.In this section, drill bit has the function on automatic drill ground, also can realize the fixing of chassis simultaneously.
Main shaft 21 two ends in above-mentioned marine tidal-current energy capture mechanism are arranged on by rotating element 16 on the column of framework and in level, two groups of marine tidal-current energy capture mechanisms are symmetricly set on chassis upside, this symplex structure can farthest reduce deflecting force, the stability of whole device is strengthened, also make many groups use and become possibility side by side simultaneously.
Described driving mechanism 3 comprises differential mechanism 31, coupling 32 and speed increaser 33, main shaft 21 in two marine tidal-current energy capture mechanisms is connected to the input end 311 of a differential mechanism to centre, this differential mechanism is identical with the differential design using in the occasions such as automobile, as shown in Figure 9.The output terminal 312 of this differential mechanism is connected to speed increaser 33 by axle and coupling, and speed increaser is connected with generator 4, and described generator is positioned at the top of whole electricity generating device, and under normal circumstances, this generator is positioned at position more than sea level.
Introduce fixing assisting agency 2 ' below, described fixing assisting agency 2 ' is a vertical marine tidal-current energy capture mechanism of arranging, principle and structure and marine tidal-current energy capture mechanism are quite similar, and can under the promotion of current, rotate, provide power for boring to work, difference is, main shaft 21 ' lower end is wherein carried out socket connection by square axle structure or spline structure 61 with drill bit top, meanwhile, part that runner is combined with main shaft is designed to spline structure 61 ', can dismantle.
Installation process is as follows, first whole device is dragged to infield, then by the valve open in chassis, make to be filled with in chassis seawater, sink, after sinking to putting in place, drill bit is penetrated in through hole, montant and drill bit in fixing assisting agency are fixed, and a runner with upset blade is arranged on to the top of montant, under the effect of ocean current, vertical pivot rotates, and forms an action of boring ground, and this process continues several hours, drill bit can be pierced lowly, when reaching after the predetermined degree of depth, idle running, finally removes fixing-aid device.Complete the steady job of whole project.
Below lifting mechanism is described, described lifting mechanism comprises hawser, winch, guide cylinder and rope sheave, guide cylinder 7 is a cylinder, and guide cylinder carries out socket connection by spline structure 61 and described drill bit 5, form one, described winch 8 is fixed in the installing space of electricity generating device, winch is electrically-actuated device, and the top of guide cylinder 7 walked around one end after the rope sheave on framework and is connected to by hawser 81, the other end is wrapped in winch 8, wherein the wheel of the rope closing in winch can lengthen, and four hawsers are synchronously reclaimed simultaneously.
This lifting mechanism is used for the maintenance of equipment, that is, and and when after device damage, on each drill bit, fix respectively a guide cylinder 7, then by the hawser in winch through the top that is fixed on guide cylinder after rope sheave, then start winch, under the traction of hawser, whole device can rise along guide cylinder, until float to top, appearance as shown in figure 11, in this process, can coordinate the inflation/deflation action in chassis to carry out, make process more smooth.Last maintenance man can keep in repair the equipment after floating.In this course, guide cylinder and drill bit form four directional posts, and under the effect of the lifting force of winch, make whole equipment increase along directional post, after maintenance, the action of winch direction, the equipment of can realizing turns back to seabed according to former route, and is fixed.
Embodiment recited above is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not departing from the present invention; relevant technical staff in the field, to various distortion of the present invention and improvement, all should expand in protection domain as determined in the claims in the present invention book.
Claims (7)
1. a marine tidal-current energy capture mechanism, comprises main shaft, runner, supporting rod and upset blade, it is characterized in that,
Described runner connects by key or is welded to connect and is fixed on main shaft, and be circumferentially furnished with uniformly at least four supporting rods at described runner, and on described supporting rod, being provided with can be at runner shaft to the upset blade freely rotating to 90 degree radially, and is provided with position-limited lever at two limit positions that overturn of the blade that overturns;
Described upset blade comprises sleeve, main panel and is arranged on the panel that meets water for current promotion upset blade change original state of outer end, described sleeve activity is nested with on supporting rod, and mode and sleeve shape that described main panel connects by welding or screw are integral; And
Described main panel front can automatic turning under the state of meeting water to the position vertical with current, described main panel front can turn 90 degrees to the position parallel with current by automatic turning under state against the current.
2. a kind of marine tidal-current energy capture mechanism according to claim 1, it is characterized in that, described supporting rod is the two bars along runner shaft to paired setting, the top of two supporting rods is fastenedly connected by connecting sheet, and be provided with at the middle part of described supporting rod vertically arrange for limiting the position-limited lever of upset blade limit position, and a side of described main panel is fixedly connected with sleeve, and described in meet water panel be from upset blade tip to one side bending form.
3. a kind of marine tidal-current energy capture mechanism according to claim 1 and 2, it is characterized in that, described upset blade is for having some strength and corrosion resistant metal blade or alloy vane, and is inlaid with the bearing shell element being rotatably assorted with supporting rod in upset blade sleeve.
4. a kind of marine tidal-current energy capture mechanism according to claim 1, it is characterized in that, described supporting rod is single pole, fix one at the top of described supporting rod along runner shaft to the position-limited lever arranging, and be respectively equipped with at the two ends of described position-limited lever along the symmetrically arranged dead axle of supporting rod or dead axle cover, and described dead axle or dead axle cover be arranged in parallel with described supporting rod, the dorsal part centre of described upset blade is provided with rotating shaft cover or the rotating shaft being rotatably assorted with described dead axle or dead axle cover, and be respectively equipped with at the two ends of described position-limited lever to upset blade against the current state carry out the second spacing position-limited lever.
5. a tidal current energy generating equipment, comprises framework, marine tidal-current energy capture mechanism, driving mechanism and generator, it is characterized in that,
Described marine tidal-current energy capture mechanism is the marine tidal-current energy capture mechanism described in any one in claim 1 to 4;
Described framework comprise chassis and be welded on chassis for supporting the column of miscellaneous part, described chassis is the housing with inner chamber, and top and bottom on described chassis are respectively equipped with air ports and intake-outlet, and are respectively arranged with valve on described air ports and intake-outlet; On described chassis, be provided with through hole and the fixing drill bit of using for fixing use, described drill bit passes through hole and inserts in seabed;
Main shaft two ends in described marine tidal-current energy capture mechanism are arranged on the column of framework by rotating element and in level, at least two group marine tidal-current energy capture mechanisms are symmetricly set on chassis upside;
Described driving mechanism comprises differential mechanism, coupling and speed increaser, described in two, main shaft extends and is connected respectively to the input end of a differential mechanism to centre, the output terminal of described differential mechanism is connected to speed increaser by axle and coupling, described speed increaser is connected with generator, and described generator is positioned at the top of whole electricity generating device.
6. a kind of tidal current energy generating equipment according to claim 5, it is characterized in that, also comprise a fixing assisting agency, described fixing assisting agency is a vertical marine tidal-current energy capture mechanism of arranging, socket connection is carried out by square axle structure or spline structure and described drill bit top in described main shaft lower end wherein.
7. according to a kind of tidal current energy generating equipment described in claim 5 or 6, it is characterized in that, also comprise a lifting mechanism, described lifting mechanism comprises wire rope, winch, guide cylinder and rope sheave, described guide cylinder carries out socket connection by square axle structure or spline structure and described drill bit, described winch is fixed in the installing space of electricity generating device, and described wire rope walks around one end after the rope sheave on framework and be connected to the top of guide cylinder, and the other end is wrapped in winch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410206380.4A CN103953496B (en) | 2014-05-15 | 2014-05-15 | A kind of marine tidal-current energy capture mechanism and electricity generating device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410206380.4A CN103953496B (en) | 2014-05-15 | 2014-05-15 | A kind of marine tidal-current energy capture mechanism and electricity generating device |
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| CN103953496A true CN103953496A (en) | 2014-07-30 |
| CN103953496B CN103953496B (en) | 2016-03-02 |
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| CN201410206380.4A Expired - Fee Related CN103953496B (en) | 2014-05-15 | 2014-05-15 | A kind of marine tidal-current energy capture mechanism and electricity generating device |
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| CN107059710A (en) * | 2017-04-20 | 2017-08-18 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN107059711A (en) * | 2017-04-20 | 2017-08-18 | 中广核工程有限公司 | A kind of taking and discharging tunnel Hand scarf device and method |
| CN113279900A (en) * | 2021-05-25 | 2021-08-20 | 于传祖 | Tidal current energy power generation device |
| CN113931780A (en) * | 2021-11-15 | 2022-01-14 | 嵊泗县洋山镇陈久海洋科技发展有限公司 | Loose-leaf fluid power generator |
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