CN106545454A - A kind of portable folding blade tidal current energy generating equipment - Google Patents

Abstract

The invention discloses a portable folding paddle tidal current energy generating device, which comprises an anchoring device arranged on the seabed, a streamlined watertight cabin and a blade fixing base. The input shaft and output shaft are respectively connected with the blade fixed base and the generator; the blade fixed base is movably connected with foldable streamlined blades, and the bottom of the watertight cabin is connected by bolts with a rotating base that can rotate 360° around the vertical axis. disk; the rotating base disk is connected with the mooring device through a steel cable, and the top of the watertight cabin is suspended and connected with a buoyancy device. The invention is mainly aimed at the use of small-scale power generation, which is convenient for transportation and use. By designing the watertight compartment to be streamlined, the incoming flow direction can be determined, thereby preventing the anchoring cables from colliding with the blades. At the same time, folding the detachable blades can greatly reduce the maintenance cost of the paddle type tidal current energy generation device, and each blade can be repaired separately.

Description

A portable folding paddle tidal current energy generating device

technical field

The invention belongs to the technical field of utilizing tidal current energy to generate electricity, and more specifically relates to a portable folding paddle tidal current energy generating device.

Background technique

Focusing on the 21st century, countries around the world have already shifted their development focus to the sea. The huge energy contained in the ocean is the main resource lifeline of various countries. Ocean energy is a clean and renewable energy source. According to the estimates published by UNESCO in 1981, the total theoretically renewable total of five types of ocean energy is 76.6 billion kilowatts, and the development prospects are very promising. Our country has 18.000 kilometers of coastline and 6.960 islands with a total area of 6.700 square kilometers. Most of these islands are far from land and thus lack energy supplies. Therefore, in order to realize the development and development of my country's sea islands, it is also necessary to vigorously develop my country's ocean energy resources.

The high transportation and installation costs of existing tidal current power generation devices account for 30% of the total cost, which has become the biggest obstacle to tidal current power generation. Moreover, most of the existing tidal current energy generating devices are bulky and inconvenient to move and use. At present, there is no power generating device at home and abroad that uses telescopic and folding methods to reduce the transportation and installation costs of tidal current energy turbines. Zhejiang University proposed the invention patent "Telescopic Pulp Ocean Current Power Generation Device" (Application No.: 200610052522.1), which uses a telescopic structure to reduce the resistance of the incoming flow to the impact of the turbine, focusing on improving performance, but the structure is relatively complicated and bulky, which is not convenient for transportation. Harbin Engineering University's invention patent "Straight Blade Adaptive Variable Pitch Water Turbine for Tidal Energy Conversion" (application number: 2003106918.5) uses a spring mechanism to replace the cycloidal type to achieve the function of automatically adjusting the pitch and improve the performance-price ratio, but the structure is due to The use of springs makes the structure more complicated. "Adaptive Flexible Blade Rotor" (Application No.: 200710181399.8) and "Flexible Blade Rotor Support Device" (Application No.: 200810249880.0) of Ocean University of China generate a larger torque than rigid blades by using flexible blade rotors to improve the energy conversion of water turbines efficiency. Tianjin University's "Self-regulating Ocean Current Power Generation Device" (application number: 200610129897.3) uses sensors to automatically adjust the angle and depth of the blades to the size and direction of the ocean current, optimizing the performance of the two horizontal axis turbines. The invention patents of Dalian University of Technology "Double Reverse Folding Horizontal Axis Tidal Energy Turbine" (Application No.: 201010247741.1), "Three-Wheel Efficient Telescopic Folding Horizontal Axis Tidal Energy Generating Device" (Application No.: 201010253682.9) and "Folding Vertical Axis Axial tidal current energy generation device" (application number: 201010235920.3) adopts a telescopic and folding structure, which reduces the volume of the entire device and effectively reduces installation and transportation costs. All of the above devices are not suitable for small-scale power generation, and are difficult to carry and use.

Contents of the invention

The purpose of the present invention is to overcome the deficiencies in the prior art and provide a portable folding blade tidal current energy generating device, which is mainly used for small-scale power generation. The volume of the device is convenient to transport and use. By designing the watertight compartment to be streamlined, the incoming flow direction can be determined, thereby preventing the anchoring cables from colliding with the blades. At the same time, folding the detachable blades can greatly reduce the maintenance cost of the paddle type tidal current energy generation device, and each blade can be repaired separately.

The purpose of the present invention is achieved through the following technical solutions:

A portable folding paddle tidal current energy generating device, including an anchoring device arranged on the seabed, a streamlined watertight cabin and a blade fixing base, the watertight cabin is equipped with a generator and a speed-up gearbox, and the speed-up gearbox The input shaft and the output shaft are respectively connected with the blade fixed base and the generator; the blade fixed base is movably connected with foldable streamlined blades, and the bottom of the watertight cabin is connected by bolts to a vertical A rotating base plate whose axis rotates 360°; the rotating base plate is connected with the mooring device through a steel cable, and the top of the watertight cabin is suspended and connected with a buoyancy device.

The blade is composed of at least two telescopic rods with different inner diameters connected to each other through spring pins.

The blades are fixed on the blade fixing base by bolts, so that the blades can rotate.

Compared with the prior art, the beneficial effects brought by the technical solution of the present invention are:

1. The watertight cabin in the device of the present invention is streamlined, and the upstream direction of the whole device can be determined by the streamlined cabin, thereby preventing the steel cables used for anchoring from colliding with the blades.

2. The folding blades in the present invention are installed on the blade fixing base by using a bolt-type installation method. At the same time, the blades are made of telescopic rods with different inner diameters, so they can be telescopically folded, which is convenient, simple and fast; through effective folding, the The volume of the whole device facilitates the use of small-scale electricity and reduces the installation cost.

3. The present invention fixes the watertight cabin through the buoyancy device and the bottom mooring device, which reduces the effect of the supporting structure and can generate electricity effectively; at the same time, the underwater depth of the device can be adjusted, and a suitable water depth can be freely selected.

4. The device of the present invention adopts a 360-degree rotating rotating base plate installed under the airtight cabin, which can rotate by itself according to the incoming flow, so as to realize power generation in various incoming flow directions.

5. When the device of the present invention deviates under the action of the tidal current, the connection between the steel cables used for mooring at the bottom and the buoyancy device on the upper part is subjected to tension, so that the material utilization efficiency of the structure can be increased, thereby reducing the material cost.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention in use.

Fig. 2 is a schematic diagram of the detailed structure of the blade part of the present invention.

Fig. 3 is a structural schematic diagram of the device of the present invention in a folded state before use.

Reference signs: 1-mooring device 2-steel cable 3-rotating base plate 4-watertight cabin 5-generator 6-increasing gearbox 7-input shaft 8-blade fixing base 9-blade 9a-telescopic rod 9b- Telescopic rod 10-buoyancy device 11-bolt

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figure 1, a portable folding paddle tidal current energy generating device includes an anchoring device 1 arranged on the seabed, a streamlined watertight cabin 4 and a blade fixing base 8. The cabin is streamlined, so that the upstream of the entire device can be determined. direction, thereby preventing the steel rope 2 used for mooring from colliding with the blade 9.

The bottom of the watertight cabin is connected by bolts to a rotating base plate 3 that can rotate 360° around the vertical axis, that is, in the horizontal direction. The rotating base plate 3 is connected to the mooring device 1 through a steel cable 2. The watertight cabin 4 includes a generator 5 and Speed-up gearbox 6, the input shaft of speed-up gearbox 6 is connected to blade fixing base 8, its output shaft is connected to generator 5, and blade fixing base 8 is connected to foldable blade 9. Above the watertight cabin 4 is a buoyancy device 10 suspended by steel cables.

The blade 9 shown in FIG. 2 is connected to the blade fixing base 8 through bolts, the blade 9 can rotate around the bolt, and is fixed by tightening the bolt when in use. In this embodiment, each set of blades 9 is composed of two telescopic rods 9 a and 9 b with different inner diameters, that is, the blades 9 are composed of two telescopic rods. The telescopic rod 9a and the telescopic rod 9b are fixed by a spring latch. In the folded state, the telescopic rod 9b is pushed toward the telescopic rod 9a so that the telescopic rod 9a is inside the telescopic rod 9b; in the use state, the telescopic rod 9b is pulled out Telescopic rod 9a.

The actual operation process of the present invention is as follows:

Before the present invention is used, as shown in Figure 3, the streamlined blade 9 is stretched to the shortest and then rotated around the watertight cabin 4, the mooring device 1 and the upper buoyancy device 10 are disassembled, and then transported to the place of use. This prevents collision damage to the device during transport. After arriving at the place of use, the blades 9 are rotated to a suitable angle and fixed, and then the telescopic rods are launched in sequence, and finally the bottom mooring device 1 and the upper buoyancy device 10 are installed to start operation.

The above technical solution utilizes a portable folding paddle tidal current energy generating device, and the entire device is folded together, which reduces the underwater construction time, improves the overall quality of the device, and reduces installation and transportation costs. The streamlined watertight cabin is used to effectively control the direction of the incoming flow and prevent accidents between the anchoring cables and blades. At the same time, the whole device has no supporting rods, which greatly reduces the overall space. In terms of use and installation, the installation of the whole device is relatively simple, and it only needs simple training for ordinary workers to work.

The present invention is not limited to the embodiments described above. The above description of the specific embodiments is intended to describe and illustrate the technical solution of the present invention, and the above specific embodiments are only illustrative and not restrictive. Without departing from the gist of the present invention and the scope of protection of the claims, those skilled in the art can also make many specific changes under the inspiration of the present invention, and these all belong to the protection scope of the present invention.

Claims (3)

1. A portable folding blade tidal current energy generating device is characterized in that it comprises an anchoring device arranged on the seabed, a streamlined watertight cabin and a fixed base for blades, a generator and a speed-increasing gear box are housed in the watertight cabin, and the The input shaft and output shaft of the step-up gearbox are respectively connected with the blade fixing base and the generator; the blade fixing base is movably connected with foldable streamlined blades, and the bottom of the watertight cabin is connected by bolts There is a rotating base plate that can rotate 360° around a vertical axis; the rotating base plate is connected with the mooring device through a steel cable, and the top of the watertight cabin is suspended and connected with a buoyancy device. 2 . A portable folding paddle tidal current energy generating device according to claim 1 , wherein the blade is composed of at least two telescopic rods with different inner diameters connected to each other through spring pins. 3 . 3 . The portable foldable blade tidal current energy generating device according to claim 1 , wherein the blade is fixed to the blade fixing base by bolts, so that the blade can rotate. 4 .