WO2016086328A1

WO2016086328A1 - U-shaped tidal current energy power generation device carrier and base type tidal current energy power generation device

Info

Publication number: WO2016086328A1
Application number: PCT/CN2014/001076
Authority: WO
Inventors: 马勇; 张亮; 张学伟; 杨月; 盛其虎; 张之阳
Original assignee: 哈尔滨工程大学; 马勇
Priority date: 2014-12-01
Filing date: 2014-12-01
Publication date: 2016-06-09
Also published as: MA40667B1; KR20170039210A; KR101902876B1; CN106103976B; MA40667A1; TN2017000227A1; CN106103976A

Abstract

A U-shaped tidal current energy power generation device carrier and base type tidal current energy power generation device, the U-shaped tidal current energy power generation device carrier mainly comprising a base and a connection bracket, the base comprising a spud leg (1), a horizontal beam (2), a horizontal short beam (3), a long upright spud (4) and a short upright spud (5), the connection bracket comprising an upright tube (8), an upper tube (9), a lower tube (10), a fixed tube (11) and a bearing (12). The base type tidal current energy power generation device comprises a U-shaped tidal current energy power generation device carrier and a hydro turbine generator. The hydro turbine generator can be a horizontal shaft hydro turbine or a vertical shaft hydro turbine. The invention has a simple structure, a stable mechanism, simple installation and use, low cost in manufacture, construction and operation, does not impact shipping or operation at sea, and is suitable for application in a sea area with a large amount of tidal current energy or a river channel with a large amount of a water current energy resource, and realizes the development and utilization of the water current energy resource in a sea area with a complex flow direction. The invention has a good starting and power generating performance, is adaptive to tidal current flow direction, and avoids cable entanglement.

Description

Gate-shaped tidal energy generating device carrier and seat-type tidal energy generating device

Technical field

The present invention relates to a support device for a tidal current power generation device, and to a tidal current power generation device.

Background technique

The use of tidal energy to reduce energy intensity and reduce the effectiveness of environmental pollution has been widely recognized. The key is to develop tidal energy generation devices with superior performance, stable structure and suitable for engineering applications. At present, the tidal energy power generation devices for experimental demonstration and engineering applications are mainly turbine-type tidal energy power generation devices. Based on the structural characteristics of the turbine, the tidal energy generating devices for experimental demonstration and engineering applications are mainly horizontal axis and vertical axis. Based on the characteristics of the structure of the turbine-mounted carrier, the tidal energy generating devices for experimental demonstration and engineering applications are mainly floating, pile-type and seat-bottom. It has been found from published reports that the tidal current power generation device based on the horizontal axis turbine has the advantage of high energy utilization rate, and the tidal energy power generation device based on the vertical axis turbine has a slightly lower energy utilization rate than the tidal current power generation device of the horizontal axis turbine, but Adapt to the change of flow direction, simple structure, suitable for complex flow to water applications. Although the tidal current power generation device based on the floating carrier is convenient for construction, construction and deployment, it floats on the sea surface, occupies the sea area, affects the navigation and offshore operations of the ship, and has poor ability to withstand extreme marine environment. It proposes a comparison between the carrier and the mooring design. High requirements; the tidal current energy generation device based on the pile-column carrier is stable and suitable for the operation of the device, but the technical difficulty and economic cost of the piling construction are often high.

A dual-guide flow cover and a tidal current power generation device are disclosed in the patent document of the publication No. CN 102230440 A. The double-flow flow cover includes a base, two symmetrically disposed flow guides, a guide post and a guide tube, and the guide a flow cover and the guide post are fixed on the base, the flow guiding tube is located between the two flow guiding covers, the guiding tube comprises a first curved cover and a second curved cover, The first curved cover is fixed on the seat bottom, the second curved cover is provided with a guiding sleeve, the guiding sleeve is sleeved on the guiding post, and the second curved cover is located at the first Above the curved cover, the second curved cover is further provided with a mounting bracket, and the mounting bracket is provided with a mounting sleeve. It is easy to overhaul the power flow generator through the double-guide flow cover. In addition, since the shroud is symmetrically arranged on the base, it is possible to use the ocean current to drive the turbine to generate electricity during the rising and falling tides, so that the tidal current generating device can utilize the tidal current to the utmost extent.

Summary of the invention

The object of the present invention is to provide a gate-shaped tidal energy power generation device carrier which is simple in structure, stable in structure, convenient to install and use, and capable of realizing development and utilization of water flow energy resources in complex water flows. It is still another object of the present invention to provide a seat-type tidal energy power generation device based on a gate-shaped tidal power generation device carrier.

The gate-shaped tidal power generation device carrier of the invention mainly comprises a base and a connecting frame; the base comprises a pile leg, a horizontal beam, a horizontal short beam, a long vertical pile and a short vertical pile, and the three pile legs are connected by three horizontal beams into a triangle The horizontal short beam is connected between the two horizontal beams, and one long vertical pile and one short vertical pile are respectively vertically installed on the two horizontal beams connected with the horizontal short beam, and the short vertical pile The limit ring is arranged on the upper part; the connecting frame comprises a door riser, an upper door pipe, a lower door pipe, a fixed pipe and a bearing, the upper door is closedly connected with the upper ends of the two door risers, the lower door pipe and the two door risers The inner side of the lower end is connected, and each of the door risers is provided with a fixed tube, and the upper and lower tubes are respectively provided with bearing members; the door riser and the short pile are combined, the fixed tube and the long pile are combined, and the door riser and the The limit ring contact on the short pile realizes the vertical lower limit position of the connecting frame.

The gate-shaped tidal power generation device carrier of the present invention may further include:

1. The pile leg is a cylindrical structure, comprising a cylinder body, a cylinder bottom and a reinforcing rib plate. The bottom of the cylinder is located at a position below the middle of the cylinder body, and the bottom of the cylinder and the wall of the cylinder are reinforced by reinforcing ribs, and the mouth of the cylinder is open. .

2. The upper door pipe and the door riser are at an angle of 10°, and the lower door pipe and the door riser are at an angle of 15°.

3. A collision rod is respectively arranged on the horizontal short beam and the horizontal beam parallel to the horizontal short beam.

The seat type tidal power generation device of the present invention comprises a gate-shaped tidal power generation device carrier and a hydro-generator, the bilge-type tidal power generation device comprising a base and a connecting frame; the base comprises a pile leg, a horizontal beam, and a horizontal Short beam, long vertical pile, short vertical pile, three pile legs are connected by three horizontal beams into a triangle, horizontal short beam is connected between two horizontal beams, and vertically installed on two horizontal beams connected with horizontal short beams a long vertical pile and a short vertical pile, and a limit ring is arranged on the short vertical pile; the connecting frame comprises a door riser, an upper door pipe, a lower door pipe, a fixed pipe and a bearing, the upper door pipe and the two door stand The upper end of the tube is closed and the lower door is connected to the inner side of the lower end of the two door risers. Each of the door risers is provided with a fixed tube, and the upper and lower tubes are respectively provided with a bearing; the door riser and the short stand The sleeve is fixed with the long pile, and the door riser is in contact with the limit ring on the short pile to realize the vertical lower limit of the joint; the hydro generator is installed on the upper and lower tubes through the rotating shaft Set between the bearings.

The seat type tidal power generation device of the present invention may further include:

1. The hydroelectric generator is a horizontal-axis hydro-generator, including a hub, a blade, a nacelle, a main shaft, a speed increaser, a generator and a brake, and the speed increaser, the generator and the brake are sealed in the nacelle, and the blade passes The hub is fixed at the end of the main shaft, and the flap is mounted on the tail of the nacelle by a wing rod. The nacelle is connected to the upper and lower tubes by two mounting rods, and the horizontal short beam and the horizontal beam parallel to the horizontal short beam. There are collision bars on the top.

2. The hydro-generator is a horizontal-axis hydro-generator, including a hub, a blade, a nacelle, a main shaft, a speed increaser, a generator and a brake, and the speed increaser, the generator and the brake are sealed in the nacelle, and the blades pass The hub is fixed to the end of the main shaft, and further includes a shroud, a support plate, a reversing rudder and a limiter. The shroud is an open involute streamlined cover, and the nacelle is fixed in the shroud through the support plate. The support plate is a streamlined wing that is evenly distributed along the circumference of the shroud. One end of the support plate is connected to the outer wall surface of the nacelle, and the other end is connected to the inner wall surface of the shroud. The reversing rudder includes a wing connecting rod, a limiting slot and a wing plate. The guide cover is gradually opened, the wing plate and the limiting slot are rotatably connected, and the shroud is disposed above and below the shroud connecting shaft and the connecting flange. The stopper includes a rotating gear and a fixed gear, and the rotating gear is fixed at the connection. On the flange, the fixed gear is fixed on the bearing, in the horizontal short beam and horizontal Collision bars are respectively arranged on the horizontal beams parallel to the short beams, and the shroud is connected with the bearing plates provided on the upper door pipe and the lower door pipe through the shroud connecting shaft and the connecting flange connection.

3. The hydro-generator is a vertical-axis turbine. The speed-increasing gear, generator and brake are sealed in the nacelle. The nacelle is fixed on the upper door pipe. The blades are mounted on the rotating shaft. The two ends of the rotating shaft are set on the upper door and the lower door. The bearing is connected, and the end of the generator main shaft and the upper end of the rotating shaft are provided with meshing bevel gears.

The invention provides a simple structure, stable mechanism, convenient installation and use, low manufacturing, construction and operation cost, does not affect shipping and sea surface operations, and is suitable for river applications rich in tidal current rich water resources or water flow energy resources, and can be carried A gate-shaped tidal energy generating device carrier for a vertical axis hydroelectric generating set. The seat type tidal power generation device of the present invention can provide production and living electricity to the coastal, riverside and island residents. To realize the development and utilization of water flow energy resources in complex waters. It has good starting and power generation performance, adaptive flow direction, and avoids cable entanglement.

The invention adopts a modular structure, which mainly comprises a base part, a connecting frame part and a hydroelectric generating set part.

The base part is used for supporting the connecting frame part and the hydro-generator part, and realizing gravity friction fixing of the hydro-generator part and the sea bottom, mainly including pile legs, horizontal beams, horizontal short beams, long standing piles, short standing piles , inclined piles and pile reinforcement plates, etc. The pile legs are used for loading, gravity friction fixing and welding with horizontal boring to form a three-legged triangular base, which is a cylindrical structure, the bottom of the cylinder is moved upwards, is easy to be fixed by gravity friction, and the structure between the bottom of the cylinder and the wall of the cylinder is strengthened, and the mouth of the cylinder is open. . The horizontal beam is connected to the pile leg and is also used for welding long standing piles and short standing piles. The horizontal short beam is connected with two horizontal beams at both ends, and the horizontal short beam and the horizontal beam parallel to the plane of the portal frame are respectively provided with collision bars for cooperating with the wing plates to provide commutation for the hydroelectric generating set. Lift. The long and short piles are mainly used for mating with the fixed pipe and the door riser of the connecting frame to realize the horizontal positioning of the connecting frame part and the hydro-generator part. After the door riser and the short vertical pile, the fixed pipe and the long vertical pile are respectively assembled, the vertical limit of the vertical direction is achieved by the door riser contacting the limit ring on the short pile. In order to ensure the welding strength between the long pile and the horizontal beam, the long pile is strengthened by the inclined pile and the pile reinforcement board. In order to ensure the welding strength between the short pile and the horizontal beam, the pile reinforcement board is adopted. The short piles are structurally strengthened. The horizontal beam, the horizontal short beam, the long vertical pile, the short vertical pile and the diagonally drawn pile are all tubular structures, and both inner and outer coatings are coated with anticorrosive paint, and are horizontal beams, horizontal short beams, long vertical piles, short vertical piles and inclined There is a water inlet hole in the pile to reduce the ballast during installation and operation, which is convenient for installation work.

The connecting frame portion is used for carrying a hydro-generator unit part, and realizes a live connection between the hydro-generator unit part and the base part, mainly including a door riser, a door-up pipe, a lower door pipe, a fixed pipe and a bearing. The upper door tube is closedly connected to the upper end of the door riser, and the lower door tube is connected to the inner side of the lower end of the door riser to form a gate frame. The door riser is further provided with a fixed pipe for horizontal restraint with the long pile, the lower end of the door riser is horizontally restrained with the short pile, and is in contact with the limit ring on the short pile. The vertical limit of the connecting frame portion is achieved. Bearings are also respectively disposed on the upper door and the lower door. The bearing device is composed of a bearing cylinder, a water lubricated bearing, a connecting frame main shaft and a connecting frame main shaft flange, and is used for carrying a hydroelectric generator. The group portion and the part of the hydro-generator unit are free to rotate within the portal frame. In order to facilitate the partial arrangement of the hydro-generator set, the upper door pipe and the door riser are at an angle of 10°, and the lower door pipe is at an angle of 15° to the door riser. A working table is arranged on the bearing tube at the upper end of the connecting frame portion, and a hook device is arranged on the upper door tube for lifting work. The door riser, the upper door pipe and the lower door pipe are all tubular structures, and the inner and outer pipes are coated with anticorrosive paint, and the water inlet holes are opened on the door riser, the upper door pipe and the lower door pipe to reduce installation and operation. The ballast is easy to install.

The hydro-generator unit is used for converting kinetic energy of the tidal current into electric energy, and is an adaptive flow-oriented unit for diversion, mainly including a shroud, a support plate, a water turbine, a reversing rudder and a limiter. The air guiding cover is an open involute streamline type cover body for improving the conversion efficiency of the impeller, the lower end is provided with an arc connecting plate, the curved connecting plate is provided with a shroud connecting shaft, and the shroud connecting shaft is arranged The shroud is connected to the shaft flange, and the upper end is directly provided with a shroud connecting shaft and a shroud connecting the shaft flange. The hydro-generator unit is connected to the shaft flange of the connecting frame through the shroud connecting shaft flange. The turbine includes blades, hubs, nacelles, main shafts, speed increasers, generators and brakes, and the like. The main shaft, the speed increaser, the generator and the brake are sealed in the nacelle, and the water turbine is fixed in the shroud through the support plate. The support plate is a streamlined wing plate, which is uniformly distributed in the circumferential direction, one end is connected to the outer wall surface of the nacelle, and one end is connected to the inner wall surface of the shroud. The reversing rudder is used for convection of the shroud and the turbine, including a wing connecting rod, a limiting groove and a wing, which are located at the opening of the shroud. The wing connecting rod is used for connecting a limiting slot, the limiting slot is for constraining the range of the swing angle of the wing, the wing plate is rotatably connected with the limiting slot, and after the collision rod acts, the part of the hydroelectric generating set is Provides reversing lift. The limiter is used to control the rotation angle of the hydro-generator part, so that it rotates only in the range of 180°, to avoid wire winding, including the rotating gear and the fixed gear. The rotating gear is fixed on the shroud connecting shaft flange, and the fixed gear is fixed on the bearing cylinder. The upper and lower shroud spindle flanges of the hydro-generator unit are provided with rotating gears, and the upper and lower bearing cylinders of the connecting frame portion are provided with fixed gears, and the upper and lower rotation limit guarantee mechanism limits Bit stability.

The upper door tube is also welded with a hooking device, and the upper end bearing tube is further welded with a working platform on the upper end surface.

The portal frame can also be directly connected to the water turbine cabin through the cabin connecting shaft and the nacelle connecting shaft flange, and the reversing dynamic lifting force is provided by the rudder at the tail of the turbine cabin, and the adaptive water flow is reversed.

The rudder includes a wing bar and a flap, and the flap can adopt a 10° fixed wing structure.

After the bearing is arranged on the upper and lower ends of the door frame, a vertical axis turbine can be mounted, and a direct drive generator set can generate electricity.

The power generating device can be operated by the whole lifting device in the working sea area or the river channel, and only the connecting frame portion and the part of the hydroelectric generating set can be lifted during maintenance and overhaul.

The gate-shaped bottom-type tidal current power generation device is not only suitable for tidal current rich sea applications, but also suitable for application in rivers rich in water flow resources.

DRAWINGS

Fig. 1 is a schematic view showing the structure of an embodiment of a seat type tidal power generating device.

Figure 2 is a schematic view of the structure of the base portion.

Figure 3 is a schematic view showing the structure of the connecting frame.

Figure 4 is a schematic view of the structure of a hydro-generator unit.

Figure 5 is a schematic diagram of the arrangement of the stoppers.

Figure 6 is a schematic diagram of a horizontal axis hydro-generator set without a shroud.

Fig. 7 is a schematic view showing the structure of another embodiment of a seat type tidal power generating device.

Figure 8 is a schematic view of the transmission of a vertical axis turbine.

detailed description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The gate-shaped tidal power generating device carrier of the present invention mainly comprises a base and a connecting frame. The base mainly functions as a support link and a hydro-generator set. Referring to Figure 2, the base mainly comprises three pile legs 1, three horizontal beams 2, one horizontal short beam 3, two long vertical piles 4, two short vertical piles 5, two inclined piles 6 and four vertical piles. Reinforce the board 7 and so on. The three legs 1 are loaded with ballast and fixed by friction with the seabed. The three legs 1 are welded to the three horizontal beams 2 to form a three-legged triangular base. The three pile legs 1 adopt a cylindrical structure, the bottom 22 of the cylinder is moved upward, and the bottom of the cylinder 22 and the wall of the cylinder are reinforced by a reinforcing rib 23, and the mouth of the cylinder is open. An intermediate portion of the horizontal beam 2 parallel to the portal frame is welded with an impact rod 18, and a horizontal pile 2 and a short pile 5 are welded to the horizontal beam 2 which are not parallel to the portal frame. Each of the long piles 4 on the horizontal beam 2 is further welded with a cable-stayed pile 6 and a pile-reinforced plate 7, and a short-pile reinforcement plate 7 is welded to the short pile 5. Each of the pile reinforcing plates 7 is welded to the outside of each of the long piles 4 and the short piles 5, respectively. The two ends of the horizontal short beam 3 are welded to the two horizontal beams 2, and the middle portion of the horizontal short beam 3 is also welded with the collision rod 18, and the collision rod 18 cooperates with the wing plate 37 to provide a commutation motion for the hydroelectric generating unit portion. Lift. The three horizontal beams 2, one horizontal short beam 3, two long vertical piles 4, two short vertical piles 5 and two diagonally-drawn piles 6 are tubular structures, both of which are coated with anticorrosive paint inside and outside, and are horizontal beams. 2. Horizontal short beam 3, long vertical pile 4, short vertical pile 5 and inclined pile 6 are provided with water inlet holes to reduce ballast during installation and operation, which is convenient for installation work.

The connecting frame is used to carry a hydroelectric generating set. Referring to FIG. 3, the connecting frame mainly comprises two door risers 8, two upper door pipes 9, two lower door pipes 10, two fixed pipes 11 and two bearing members 12. The two upper door pipes 9 are closedly connected to the upper ends of the two door risers 8, and the two lower door pipes 10 are connected to the inner sides of the lower ends of the two door risers 8 to form a gate frame. A fixed tube 11 is welded to the outside of each of the two door risers 8 respectively. The inner diameter of each of the fixed tubes 11 is slightly larger than the outer diameter of each of the long piles 4, and is placed on the long piles 4 to horizontally limit the joints and the hydro-generator sets. The inner diameter of each of the door risers 8 is slightly larger than the outer diameter of each of the short piles 5, and the lower end of each of the door risers 8 is fitted over each of the short piles 5 to level the joint portion and the hydro-generator portion The restraining limit is made to contact the limit ring 21 on the short pile 5 to vertically extend the lower limit position of the connecting frame portion and the hydro-generator unit. A bearing 12 is also welded between the two upper door tubes 9 and the two lower door tubes 10, respectively. Each bearing 12 consists of one The bearing cylinder 25, a water lubricated bearing, a connecting frame main shaft 26 and a connecting frame main shaft flange 27, the connecting frame main shaft 26 and the connecting frame main shaft flange 27 are rotatable in the bearing cylinder 25. Each of the upper door tubes 9 is at an angle of 10° to each of the door risers 8, and each of the lower door tubes 10 is at an angle of 15° to each of the door risers 8 respectively. A bearing platform 25 is welded to the upper end of the connecting frame portion, and a hooking device 19 is welded to each of the upper door tubes 9 for lifting work. The two door risers 8, the two upper door pipes 9, the two lower door pipes 10, and the two fixed pipes 11 are all tubular structures, and both inner and outer coatings are coated with anticorrosive paint, and are on the door riser, the upper door pipe and the lower door pipe. Water inlet holes are provided to reduce ballast during installation and operation, facilitating installation work.

A hooker 19 may also be welded to the upper door tube, and the upper end surface of the upper end bearing cylinder 25 may also be welded to the work platform 20.

Combine Figures 1 - 5. The bottom type tidal power generating device The hydro-generator in one embodiment is a horizontal-axis hydro-generator. The hydroelectric generating unit converts the kinetic energy of the tidal current into electric energy, and mainly includes a shroud 13, three supporting plates 14, a set of hydraulic turbines 15, a reversing rudder 16, and a set of stoppers 17. The shroud 13 is an open involute streamlined cover. The upper end and the lower end of the shroud 13 are respectively welded with a curved connecting plate 42, and each of the curved connecting plates 42 is welded with a shroud. Connecting the shaft 40, each of the shroud connecting shafts 40 is welded with a shroud connecting shaft flange 41, and each shroud connecting shaft flange 41 is operatively connected to the connecting frame main shaft flange 27, respectively. The turbine includes a hub, two blades, a nacelle, a main shaft, a speed increaser, a generator and a brake. The main shaft, the speed increaser, the generator and the brake are sealed in the nacelle, and the water turbine is fixed in the shroud 13 through the three support plates 14. The support plate 14 is a streamlined wing plate which is uniformly distributed in the circumferential direction, one end is connected to the outer wall surface of the nacelle 31, and one end is connected to the inner wall surface of the airflow guide cover 13. The reversing rudder 16 is used for convection of the shroud 13 and the water turbine 15, and includes two L-shaped wing connecting rods 35, two limiting slots 36 and a flap 37 at the gradual opening of the shroud 13. Two L-shaped wing connecting rods 35 are used to connect the two limiting slots 36. One end is welded to the open side of the shroud 13 and the other end is welded to the limiting slot 36, respectively. The limiting groove 36 is used to constrain the swing angle range of the flap 37, and the control flap 37 is swung within a range of ±10°. The flap 37 is a NACA0018 airfoil plate, and the chord length is 1/5 of the open diameter of the shroud 13, and is rotatably and movably connected with the limiting groove 36, and is provided for the hydro-generator unit after being acted upon by the collision rod 18. Move to lift. The stopper 17 is used to control the rotation angle of the hydro-generator unit portion so as to rotate only in the range of 180° to avoid wire winding, including two rotating gears 38 and two fixed gears 39. The two rotating gears 38 are respectively fixed to the clock-like 12 o'clock position and the 6 o'clock position of the two shroud connecting shaft flanges 41, and the two fixed gears 39 are respectively fixed to the clock-like of the two bearing cylinders 25. 6 o'clock position and 12 o'clock position. The upper and lower shroud main shaft flanges 41 of the hydro-generator unit are provided with a rotating gear 38. The upper and lower bearing cylinders 25 of the connecting frame portion are provided with a fixed gear 39, and the upper and lower rotation limits are The stability of the position guarantee mechanism.

In combination with Figure 6, a horizontal-axis hydro-generator set without a shroud can also be used. The turbine includes a hub 29, two blades 28, a nacelle 31, a main shaft, a speed increaser, a generator and a brake, and the like. The main shaft, the speed increaser, the generator, the brake, and the like are sealed in the nacelle. The portal frame is directly connected to the turbine cabin 31 through the nacelle connecting shaft 43 and the nacelle connecting shaft flange 44, and the reversing dynamic lift is provided by the rudder at the tail of the turbine nacelle 31, and the adaptive water flow is reversed. Place The rudder includes a wing bar 45 and a flap 46, and the flap 46 can be a 10° fixed wing structure.

7 and 8, after the bearing 12 is respectively disposed at the upper and lower ends of the portal frame, the vertical axis turbine 47 can be mounted, and the direct drive generator set can generate electricity. The generator set equipped with the vertical axis turbine 47 is sealed in the square nacelle 50, and includes a reversing active bevel gear 51 connected to the vertical axis turbine main shaft 48, a reversing driven bevel gear 52 connected to the generator main shaft, a speed increaser 53, Generator 54, brake 55 and the like.

Before installation, three legs 1, three horizontal beams 2, one horizontal short beam 3, one long vertical pile 4, two short vertical piles 5, two diagonally-drawn piles 6 and four vertical pile reinforcement plates 7, two The collision rods 18 and the like are first welded to form a three-legged triangular base portion; the two door risers 8, the two upper door tubes 9, the two lower door tubes 10, the two fixed tubes 11 and the two bearing 12 are welded a connecting frame portion; a shroud 13, three supporting plates 14, a set of hydraulic turbine 15, a reversing rudder 16, an arc connecting plate 42, two shroud connecting shafts 40, and two shroud connections The shaft flange 41 and the like are welded to form a hydroelectric generating unit portion. The two rotating gears 38 of the stopper 17 are respectively fixed at the 12 o'clock position and the 6 o'clock position of the two shroud connecting shaft flanges 41, and the two fixed gears 39 are respectively fixed at the 6 o'clock position of the two bearing cylinders 25, respectively. And 12 o'clock position. Three separate modules forming the base portion, the connector portion and the hydro-generator unit are formed.

During installation, the hydro-generator unit part and the connecting frame part are connected by flanges to form a new module. The new module is fitted with two short uprights 5 through two door risers 8, and is fitted to the two long piles 4 through two fixed pipes 11 and mounted on the base portion. After assembly, it can be lifted as a whole and placed on the seabed of the working sea. When the seabed is laid, the plane of the portal frame is perpendicular to the main flow of the water.

During operation, the portal-type tidal current power generating device is fixed by friction between the three legs 1 and the seabed. The water flow impacts the turbine blades to drive the main shaft to rotate. The generator is used to generate electricity through the speed increaser in the engine room, and can be stopped and repaired by the brakes in the engine room. When the power generating device is operated, the power generation efficiency of the water turbine 15 is increased by the shroud 13. When the flow direction of the water flow changes, the movement of the wing plate 37 through the limiting groove 36 and the transmission of the L-shaped wing connecting rod 35 provides the reversing dynamic lifting force for the turbine 15 in the air guiding cover 13 to make the turbine generator set part and the connecting frame main shaft. 26 together with the connecting frame spindle flange 27, 180° free rotation is realized in the bearing cylinder 25, and the adaptive flow direction changes, so that the flow guide cover 13 and the turbine impeller disk surface are always facing forward.

For maintenance and overhaul, simply lift the hydro-generator unit part and the connecting frame part for maintenance and repair work.

Installation process, work engineering and maintenance method for a gate-shaped tidal current power generation device based on a horizontal axis turbine without a shroud 13 and a gate-shaped tidal power generation device based on a vertical axis turbine 47, and a shroud with a shroud The gate-type tidal energy power generation device based on the horizontal axis turbine is similar.

Claims

A gate-shaped tidal power generating device carrier mainly comprises a base and a connecting frame; and the base comprises: a pile leg, a horizontal beam, a horizontal short beam, a long vertical pile, a short vertical pile, and the three pile legs are composed of three levels The beams are connected in a triangular shape, the horizontal short beams are connected between the two horizontal beams, and one long vertical pile and one short vertical pile are vertically installed on the two horizontal beams connected to the horizontal short beams, each of which is on the short vertical pile. a limit ring is provided; the connecting frame comprises a door riser, a top door pipe, a lower door pipe, a fixed pipe and a bearing, the upper door is closedly connected with the upper ends of the two door risers, and the lower door and the lower ends of the two door risers The inner side connection is provided with a fixed pipe on each door riser, and a bearing device is respectively arranged on the upper door pipe and the lower door pipe; the door riser and the short vertical pile are combined, and the door riser is in contact with the limit ring on the short pile. The vertical direction of the connecting frame is the lower limit position, and the fixed pipe is fitted with the long standing pile.
The gate-shaped tidal power generating device carrier according to claim 1, wherein the leg is a cylindrical structure, and comprises a cylinder body, a cylinder bottom and a reinforcing rib, wherein the bottom of the cylinder is located at a lower portion of the cylinder. The position between the bottom of the cylinder and the wall of the cylinder is reinforced by reinforcing ribs, and the mouth of the cylinder is open.
The gate-shaped tidal power generating device carrier according to claim 1 or 2, wherein the upper door pipe and the door riser are at an angle of 10°, and the lower door pipe and the door riser are at an angle of 15°.
The gate-shaped tidal power generating device carrier according to claim 1 or 2, wherein a collision bar is respectively disposed on the horizontal short beam and the horizontal beam parallel to the horizontal short beam.
The gate-shaped tidal power generating device carrier according to claim 3, wherein the horizontal short beam and the horizontal beam parallel to the horizontal short beam are respectively provided with collision bars.
A seat-type tidal power generation device, comprising a gate-shaped tidal power generation device carrier and a water turbine generator, wherein: the gate-shaped tidal power generation device carrier comprises a base and a connecting frame; the base comprises a pile leg, Horizontal beam, horizontal short beam, long vertical pile, short vertical pile, three pile legs are connected by three horizontal beams into a triangle, horizontal short beams are connected between two horizontal beams, and two horizontal beams connected with horizontal short beams A long vertical pile and a short vertical pile are vertically installed, and a limit ring is arranged on the short vertical pile; the connecting frame comprises a door riser, an upper door pipe, a lower door pipe, a fixed pipe and a bearing device, and the upper door pipe and the upper door pipe The upper ends of the two door risers are closedly connected, and the lower door tubes are connected to the inner sides of the lower ends of the two door risers, and each of the door risers is provided with a fixed tube, and the upper and lower tubes are respectively provided with bearing members; the door riser and the The short-pile pile fits, the fixed pipe and the long-stack pile fit, and the door riser and the limit ring on the short pile contact the lower limit position of the connecting frame; the hydro-generator is installed on the upper door and the lower door Between the bearings placed on the tube.
The seat-type tidal power generating device according to claim 6, wherein said hydro-generator is a horizontal-axis hydro-generator including a hub, a blade, a nacelle, a main shaft, a speed increaser, a generator, and The brakes, the speed increaser, the generator and the brake are sealed in the nacelle, the blades are fixed to the end of the main shaft through the hub, and the flaps are installed at the tail of the nacelle through the wing rods, and the nacelle is disposed on the upper and lower tubes through the two mounting rods. The bearing is connected, and a collision rod is respectively arranged on the horizontal short beam and the horizontal beam parallel to the horizontal short beam.
The seat-type tidal power generating device according to claim 6, wherein said hydro-generator is a horizontal-axis hydro-generator including a hub, a blade, a nacelle, a main shaft, a speed increaser, a generator, and The brake, the speed increaser, the generator and the brake are sealed in the nacelle, the blade is fixed to the end of the main shaft through the hub, and further includes a shroud, a support plate, a reversing rudder and a limiter, and the shroud is open The streamlined cover body is fixed in the flow guide cover by the support plate, wherein the support plate is a streamlined wing plate distributed uniformly along the circumference of the flow guide cover, one end of the support plate is connected with the outer wall surface of the nacelle, and the other end is connected with the inner wall surface of the flow guide cover. The reversing rudder includes a wing connecting rod, a limiting slot and a wing plate, and is located at an opening of the shroud, the flap is rotatably connected with the limiting slot, and the shroud is connected with the shroud connecting shaft and the connecting flange The limiter comprises a rotating gear and a fixed gear, the rotating gear is fixed on the connecting flange, the fixed gear is fixed on the bearing, and the collision bar is respectively arranged on the horizontal short beam and the horizontal beam parallel to the horizontal short beam , the shroud connects the shaft and the connection through the shroud The flange connection is connected to the bearing provided on the upper and lower door tubes.
The seat-type tidal power generation device according to claim 6, wherein the hydro-generator is a vertical-axis turbine, the speed increaser, the generator and the brake are sealed in the nacelle, the nacelle is fixed on the upper door pipe, and the blade is mounted. On the rotating shaft, both ends of the rotating shaft are connected with the bearing provided on the upper door pipe and the lower door pipe, and the end of the generator main shaft and the upper end of the rotating shaft are provided with meshing bevel gears.
The seat type tidal power generation device according to any one of claims 6 to 9, wherein the pile leg is a cylindrical structure, and includes a cylinder body, a cylinder bottom and a reinforcing rib plate, wherein the cylinder bottom is located in the cylinder The position of the lower part of the body is strengthened by the reinforcing ribs between the bottom of the tube and the wall of the tube, and the mouth of the tube is open; the upper door tube and the door riser are at an angle of 10°, and the lower door tube is at an angle of 15° to the door riser.