CN103452742A - Semi-submersible type multi-floater wave energy conversion device - Google Patents

Abstract

A semi-submersible multi-floor wave energy conversion device, including an above-water platform and an underwater floating platform, is characterized in that: the underwater floating platform is composed of several box-type floating cabins, wherein vertical floating cabins are arranged on the underwater floating platform, The upper end of the vertical floating tank is connected as a water platform, and several wave energy absorbing floating bodies are uniformly distributed along the circumferential direction on the upper end of the vertical floating tank, and each wave energy absorbing floating body is movably connected with the vertical floating tank so that the wave energy absorbing floating The arm can reciprocate and rotate around the vertical floating cabin, one end of the linear motion energy conversion element is hinged on the upper end of the wave energy absorbing floating body, and the other end is hinged on the vertical floating cabin. By adjusting the intake and displacement of the vertical floating tank and the box-type floating tank, the device can be in the working state of semi-submerged floating or in the non-working state of floating to the deck above the water surface. The device uses multiple floats to realize the sensitivity and conversion efficiency of the lifting device, realize the work without counter waves, reduce the cost and difficulty of transportation, delivery and transfer of the device, and reduce the difficulty of maintenance of the device. At the same time, it can be used as a Work and life platform with practical value.

Description

A semi-submersible multi-floor wave energy conversion device

technical field

The invention belongs to an energy conversion device, in particular to an energy conversion device utilizing ocean wave energy, in particular to a semi-submersible multi-floor wave energy power generation device.

Background technique

Under the environment of energy crisis and deterioration of ecological environment, renewable clean energy such as ocean energy has attracted worldwide attention as a supplement and substitute for petroleum energy. The ocean exists naturally and covers a vast area. However, most of the islands and offshore facilities in many places still rely on diesel power generation. The production and life of the island residents are relatively backward. Therefore, how to make full use of ocean energy and develop cheap and efficient wave energy application technology is a topic of great significance. The development of ocean energy will be conducive to promoting the development of islands and offshore production activities, as well as the development of islands and marine tourism resources.

In recent years, ocean wave energy conversion technology and energy conversion devices have made rapid progress in technology research and development. Various types of wave energy generation technologies have moved from the theoretical stage to the industrialization and practical stage. However, there are some problems in the current wave energy conversion device in actual use: 1. The sensitivity of the device is poor and the conversion efficiency is low under the condition of small waves: to realize the conversion device of high-power power generation, it is often necessary to absorb the wave energy Larger size and larger quality, but the wave energy absorption float with large size and large mass has low response sensitivity and low conversion efficiency under the condition of small waves, and will cause poor output continuity. 2. The cost of transportation, launch and movement of the device is high: traditional wave energy conversion devices are difficult to transport, launch and move. Multiple ships cooperate; and the crane has high requirements on the marine environment when it is working. Because the boom is so high, the hull of the gondola shakes slightly, and the boom will move a lot. Therefore, the traditional hoisting method is used at the wave energy delivery point. The way to drop and retrieve the device is very difficult. 3. Difficulty in maintenance: the wave energy generation device works in a sea area with strong wind and waves, and the environment is harsh and unattended. It is not easy to log in, so it is difficult to maintain. If the device cannot be maintained in time, its service life will be greatly reduced.

Contents of the invention

The object of the present invention is to provide a semi-submersible multi-floor wave energy conversion device, aiming at solving the problems of device maintenance, launching and moving, while improving the working sensitivity, stability and conversion efficiency of the device.

Technical scheme of the present invention is as follows:

It includes a water platform and an underwater floating platform, and is characterized in that: the underwater floating platform is composed of several box-type floating tanks, wherein at least some of the box-type floating tanks are provided with vertical floating tanks, based on the upper end of the vertical floating tanks The upper end of the device is connected to a water platform, and several wave energy absorbing floating bodies are evenly distributed along the circumferential direction on the upper end of the vertical floating tank. Each wave energy absorbing floating body is movably connected with the vertical floating tank so that the wave energy absorbing floating The cabin reciprocates and rotates, and one end of the energy conversion element is hinged on the upper end of the wave energy absorbing floating body, and the other end is hinged on the vertical floating cabin.

Further, the preferred technical solution of the present invention is as follows:

The inner cavity of the box-type floating tank is divided into several cabins, a drain pipe with a water valve is installed at the bottom of each cabin, and an exhaust pipe with an air valve is installed on the upper surface of the cabin.

The inner cavity of the vertical floating tank is divided into one or several floating tanks, the upper tank body of the vertical floating tank is set as a permanent floating tank, and the lower tank body is set as an adjustable tank body, and the adjustable tank body is equipped with a drainage pipe and valves as well as exhaust piping and valves. The adjustable cabin can realize the floating and sinking action of the device, and can adjust the floating state of the device.

Each wave energy absorbing floating body is fixedly connected with two supporting arms, and the supporting arms are connected with the vertical floating cabin through a hinge, so the wave energy absorbing floating body can reciprocate and rotate around the vertical floating cabin through the supporting arms and the hinge.

The upper periphery of the single vertical floating chamber is connected with 3 to 6 wave energy absorbing floats, and the wave energy absorbing floats can be solid or hollow.

The wave energy absorbing float is a cylinder with a rounded bottom.

The energy conversion element may be a linear motion energy converter or a rotary motion generator. The energy conversion element reciprocates and linearly moves under the push of the wave energy absorbing floating body to convert wave energy into hydraulic energy or other forms of energy, so as to extract energy from the ocean and convert it. The energy conversion element is equipped with a limit buffer function, which can consume excess energy and protect the energy conversion element. The limit buffer function can also be set on the structure, that is, a buffer hydraulic cylinder or a buffer hydraulic cylinder is installed at the limit position of the wave energy absorption floating body movement. other cushioning materials.

The above water platform is a hollow channel platform.

The vertical floating tanks are distributed in a symmetrical lattice.

The beneficial effects of the present invention are as follows: 1. The device adopts a plurality of cylindrical wave energy absorbing floats to expand the generating power, enhance the sensitivity of the working unit, and improve the energy conversion rate. 2. The design of the whole device is an axisymmetric body, the vertical floating tanks are symmetrically distributed, the wave energy absorbing floats on the vertical floating tanks are distributed symmetrically around the circumference, and the whole device is anchored by four corner crosses, the symmetrical body design greatly reduces the In the unstable situation, it realizes the indiscriminate work without counter waves, and also reduces the difficulty of mooring. 3. The device adopts a semi-submersible floating tank design. During operation, the lower part of the device sinks by adjusting the water volume of the vertical floating tank. When transferring the device, the entire device floats by adjusting the water volume of the vertical floating tank. It can be used like a ship. Water surface towage; when the device needs maintenance, the whole device can be floated by adjusting the water volume of the vertical floating tank, so that all the equipment are exposed to the water surface, which is convenient for maintenance. The design of the semi-submersible floating chamber is simple and has high stability, which reduces the cost and difficulty of transportation, launch and transfer of the device. 4. The device is also equipped with a water platform, on which equipment and personnel can land, which is conducive to the application of energy conversion, and can be used as a production and living platform with practical value, and also reduces the maintenance difficulty of personnel on the device.

Description of drawings

Fig. 1 is the side view of semi-submersible multi-floor wave energy conversion device of the present invention;

Fig. 2 is the top view of the semi-submersible multi-floor wave energy conversion device of the present invention;

Fig. 3 is an enlarged view of a single vertical floating tank and the buoy connected thereto in Fig. 1;

Fig. 4 is an enlarged view of a single vertical floating tank and the buoy connected thereto in Fig. 2;

Fig. 5 is the front view of the working state of the semi-submersible multi-floor wave energy conversion device of the present invention;

6 is a top view of the working state of the semi-submersible multi-floor wave energy conversion device of the present invention;

Fig. 7 is the schematic diagram that the semi-submersible multi-floor wave energy conversion device of the present invention is in the transportation state;

Reference signs: 1-underwater floating platform; 11-box type floating tank; 2-vertical floating tank; 21-permanent floating tank; 22-adjustable floating tank; 3-wave energy absorbing float; 4-first support arm ; 5-second support arm; 6-energy conversion element; 7-water platform; 8-working machine room.

Detailed ways

Below in conjunction with accompanying drawing 1 to accompanying drawing 7, further illustrate the specific embodiment of the present invention:

As shown in Figures 1 to 4, a semi-submersible multi-floor wave energy conversion device includes: a boat-shaped square underwater floating platform 1, the underwater floating platform 1 is composed of box-type floating cabins 11; The chamber 11 is provided with a plurality of vertical floating chambers 2 arranged in a symmetrical array. The inner cavity of the vertical floating chambers 2 is divided into two floating chambers, the upper end is a permanent floating chamber 21, and the lower end is an adjustable floating chamber. cabin 22, the vertical floating cabin 2 is located on the underwater floating platform 1; the bottom of the adjustable floating cabin 22 is equipped with an inlet and outlet pipe extending to the side, and the end of the inlet and outlet pipe is provided with a water valve. The top of the cabin 22 is equipped with a filling and exhausting pipe, and the end of the filling and exhausting pipe is provided with an air valve; the upper end periphery of each vertical floating cabin 2 is connected with 4 wave energy absorbing floats 3 (can be 3-6 All can be), four wave energy absorbing buoys 3 are symmetrically distributed along the central axis of the vertical floating cabin 2. The wave energy absorbing float 3 is a cylinder with a rounded bottom. The top of the wave energy absorbing buoy 3 is connected with a first support arm 4 and a second support arm 5, and the first support arm 4 and the second support arm 5 are hinged on the upper end outer wall of the vertical floating tank 2 in parallel through a hinge. The top of the wave energy absorbing buoy 3 is hinged with an energy conversion element 6, which is a hydraulic cylinder, and the other end of the energy conversion element 6 is also hinged on the upper end outer wall of the vertical floating cabin 2.

A water platform 7 is also arranged on the top of the plurality of vertical floating chambers 2. The water platform 7 is a hollowed-out channel design and always floats on the water surface for landing of equipment or personnel. Also be provided with working machine room 8 on water platform 7, can be provided with other necessary machine equipment of this device and use.

As shown in Figure 5, after the semi-submersible multi-floor wave energy conversion device is launched in the target sea area, when the device dives to the design water level, all the box-type floating tanks 11 in the underwater floating platform 1 are filled with water, and the vertical floating tank 2 The adjustable floating chamber 22 is also partly flooded, and then the four corners of the underwater floating platform 1 are anchored in a cross shape, so that the semi-submersible multi-floor wave energy conversion device is semi-submerged and anchored at the designated position. The wave energy absorbing buoy 3 floats on the waterline and is pushed by the waves, so that the wave energy absorbing buoy 3 reciprocates and rotates around the connection points between the first support arm 4 and the second support arm 5 and the vertical floating cabin 2, and the energy of the hydraulic cylinder The conversion element 6 is driven by the wave energy absorbing buoy 3 to reciprocate and linearly move to convert wave energy into hydraulic energy.

As shown in Figure 7, when the semi-submersible multi-floor wave energy conversion device needs to be transported to other places, the adjustable floating chamber 22 can be used to drain water and intake air, and the box-type floating chamber 11 can partially or completely drain water and intake air, and the device can be adjusted to float to Then the device is connected with the tugboat, and the box type floating chamber 11 and the vertical floating chamber 2 are all inflated, and the device is easier to be towed under the buoyancy effect.

The transportation and working conditions of the device of the present invention are briefly described as follows: after the device is launched into the water, it is like a barge floating on the water surface. After the device of the present invention is towed by the tugboat to the destination, the four corners anchor outward, in a cross shape (as shown in Figure 6). . Then step by step, the box-type floating tank 11 and some vertical floating tanks 2 are filled with water, and the device is submerged to the design water level to meet the demand for power generation. Under the action of waves, the wave energy absorbing floating body 3 reciprocates and rotates around the hinge through the support arm, pushes the energy conversion element 6 to do work reciprocatingly, converts the wave energy into other forms of energy, and finally converts it into electrical energy. The energy conversion element 6 can adopt different forms of energy conversion elements as required, such as hydraulic cylinders, linear generators, magnetic fluid generators, and the like. When it is necessary to migrate the device of the present invention to work in other sea areas, the recovery process is opposite to the order of putting in the work. According to the set procedure, the vertical floating tank 2 and the box-type floating tank 11 are filled with air and drained, and the device of the present invention will gradually float until the tank Type floating tank 11 decks surface. Put away the anchor chain and anchor, then the mooring force between the device of the present invention and the seabed link is released, and the device of the present invention can be hauled to any working sea area that meets the water depth conditions by a tugboat, and the work such as anchoring, loosening the chain, and diving is repeated. It can be put into power generation work again. If the running time of the device reaches the design time that needs to be maintained and maintained, the device of the present invention can be floated to make the 11 decks of the box-type floating tank emerge from the water, and maintenance, maintenance personnel and equipment can be boarded to work. If the device of the present invention encounters the frontal attack of natural disasters such as tsunami and typhoon, then the device of the present invention can be floated in advance, anchored and then dragged to a nearby port for disaster avoidance, or the whole device can be submerged to a certain depth below the water surface. To avoid typhoon attack.

Claims (9)

1. A semi-submersible multi-floor wave energy conversion device, characterized in that it comprises an above-water platform and an underwater floating platform, characterized in that: the underwater floating platform is composed of several box-type floating cabins, wherein at least part of the box-type floating There is a vertical floating tank on the cabin, and the upper end of the vertical floating tank is connected as a water platform, and several wave energy absorbing floating bodies are uniformly distributed along the circumferential direction on the upper end of the vertical floating tank, and each wave energy absorbing floating body and the vertical floating tank The flexible connection enables the wave energy absorbing floating body to reciprocate and rotate around the vertical floating cabin through the support arm. One end of the energy conversion element is hinged on the upper end of the wave energy absorbing floating body, and the other end is hinged on the vertical floating cabin. the 2. The semi-submersible multi-floor wave energy conversion device according to claim 1, wherein the inner cavity of the box-type floating tank is divided into several cabins, and a drain pipe with a water valve is installed at the bottom of each cabin , an exhaust pipe with an air valve is installed on the upper surface of the cabin. the 3. The semi-submersible multi-floor wave energy conversion device according to claim 1, characterized in that, the inner chamber of the vertical floating tank is divided into one or several floating tanks, and the upper end cabin of the vertical floating tank is provided with For the permanent floating cabin, the lower cabin body is set as an adjustable cabin body, and the adjustable cabin body is equipped with drainage pipes and valves as well as exhaust pipes and valves. the 4. The semi-submersible multi-floor wave energy conversion device according to claim 1, wherein the wave energy absorbing buoyant body is fixedly connected to two support arms, and the support arms are connected to the vertical floating cabin through hinges. the 5. The semi-submersible multi-floor wave energy conversion device according to claim 1, characterized in that 3 to 6 wave energy absorbing buoys are connected to the upper periphery of the single vertical floating chamber. the 6. The semi-submersible multi-floor wave energy conversion device according to claim 1 or 5, wherein the wave energy absorbing float is a cylinder with a rounded bottom. the 7. The semi-submersible multi-floor wave energy conversion device according to claim 1, wherein the energy conversion element is a linear motion energy converter or a rotary motion generator. the 8. The semi-submersible multi-floor wave energy conversion device according to claim 1, wherein the above-water platform is a hollow channel platform. the 9. The semi-submersible multi-floor wave energy conversion device according to claim 1, wherein the vertical floating chambers are distributed in a symmetrical lattice. the

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