CN210737485U - Comb-type breakwater unit and system integrating oscillating water column and float-type power generation device - Google Patents

Abstract

The utility model belongs to the technical field of the breakwater, concretely relates to integrated oscillating water column and float-type power generation facility's comb-type breakwater unit and system. The utility model converts the wave energy in front of the dike into electric energy through the oscillating water column type generating set and the oscillating float type generating set; the wave resonance in the energy capturing air chamber is utilized to increase the amplitude, and the relative motion amplitude of the water body and the floater is increased, so that the conversion efficiency of the wave energy is improved. The utility model converts the wave energy in front of the breakwater into electric energy, reduces the load in front of the breakwater, and improves the overall stability of the integrated system; meanwhile, the integrated comb-type breakwater system improves the working environment of the oscillating water column type and oscillating float type wave energy power generation devices, and reduces the independent construction cost of the oscillating water column type and oscillating float type wave energy power generation devices.

Description

Comb-type breakwater unit and system integrating oscillating water column and float-type power generation device

technical field

The utility model belongs to the technical field of breakwaters, in particular to a comb-type breakwater unit and a system integrating an oscillating water column and a float type power generation device.

Background technique

Global non-renewable energy sources are limited such as: oil, coal, natural gas and so on. According to statistics, with the continuous consumption of non-renewable energy by human beings, the development of non-renewable energy has been numbered on one's fingers. According to the current consumption rate and growth rate of all human beings, the global coal reserves can only be used for about 200 years; the global oil reserves can only be used for about 45 years; the global natural gas reserves can only be used for about 50 years. In the process of using traditional energy, the problems of pollution and development costs are getting higher and higher, so people have to start paying attention to the development and utilization of renewable energy. The ocean, which accounts for 71% of the earth's total area, first entered the developer's sight. At present, the ocean energy that is mainly concerned includes tidal energy, tidal energy, wave energy, temperature difference energy and salt difference energy, etc. Wave energy has large reserves and wide distribution. , the advantages of various acquisition methods and other advantages have become one of the most promising marine energy sources.

As a wave blocking structure, breakwaters have derived many different structural forms against the background of global trade development and continuous port development to cope with different geological conditions and usage requirements. As a new type of breakwater, the comb breakwater was developed in response to the geological conditions and cost requirements of the Dalian Dayaowan breakwater. This new type of breakwater structure is based on the traditional caisson breakwater, and replaces a part of the caisson with caisson wings. The whole structure is comb-like and hence named. The comb-type breakwater has a simple structure, small foundation stress, and low cost. The breakwater body allows water penetration while ensuring a better wave elimination effect.

The oscillating water column type wave energy power generation device is generally a concrete structure or a steel structure, which is a semi-submerged cavity structure. The openings are below the water surface, and the air inside the cavity is above the water surface. Under the action of waves, the water body inside the cavity vibrates up and down to drive the air to reciprocate at the nozzle, and the reciprocating gas drives the generator to generate electricity. The oscillating water column wave power generation device uses air as the conversion medium, and the energy collection is completed through the air chamber, which can avoid the direct impact of the wave on the power generation system, prolong the working life of the power generation system, and reduce the power generation cost. Integrating the oscillating water column wave energy power generation device in the comb breakwater can not only reduce the construction cost of the oscillating water column wave energy power generation device, but also reduce the wave force in front of the comb breakwater and improve the overall stability of the comb breakwater.

The oscillating float type wave energy power generation device is a wave energy utilization device that drives the float up and down through waves, and then converts the relative motion mechanical energy of the float into electrical energy. It is generally regarded as a point absorption device because of its horizontal movement scale. Relative to the wave amplitude is small. There are certain problems in the fixing method of the oscillating float type wave energy power generation device: the small power generation device can float directly on the water surface, but its power generation efficiency is not high. There are two anchoring methods for the large power generation device. In the sea, but it is greatly affected by the current and is not stable enough; the other is directly fixed on the seabed, which is only suitable for shallow sea areas. When the water depth is deep, it is relatively expensive to create conditions suitable for fixing on the seabed. , it is difficult to achieve a satisfactory power generation cost performance. Therefore, this type of device has high requirements on the stability and reliability of the structure in the harsh service environment, which limits the advantage of high power generation efficiency of the device. The oscillating float type wave energy power generation device is integrated in the comb-type breakwater caisson, which not only saves the cost of independently building the foundation of the oscillating float type power generation device, but also improves the working environment of the oscillating float type by using the caisson, which can solve the problem of fixing the oscillating float type power generation device. Cost and working environment issues, so as to take full advantage of the high efficiency of the oscillating float power generation device.

Patent Publication No. CN109356779A discloses a comb-type breakwater unit integrating an oscillating water column type and a nodding duck type power generation device, including a caisson, the caisson is installed on a riprap bed, a parapet is installed on the top of the caisson, and the back of the caisson is installed. A wing plate is installed; the bottom of the caisson is provided with a water inlet hole, and the top of the caisson is provided with an air outlet. The patent fails to fully utilize the space inside the caisson of the breakwater unit for power generation.

Utility model content

The purpose of the utility model is to provide a comb-type breakwater unit integrating an oscillating water column and a float-type power generation device based on the prior art, which integrates an oscillating float type wave energy power generation device in a caisson to improve power generation efficiency and reduce power generation cost.

The purpose of the utility model is achieved through the following technical solutions: a caisson is included, the caisson is installed on a riprap foundation bed, and a parapet is installed on the top of the caisson; the length of the parapet is longer than that of the caisson, and wings are installed below the part of the parapet beyond the caisson. The width of the wing plate in the vertical direction is smaller than that of the caisson; the bottom of the caisson is provided with water inlet and outlet holes, and the top of the caisson is provided with air inlet and outlet holes; it also includes an oscillating float; the oscillating float is installed in the inner center of the caisson position; two of the water inlet and outlet holes are respectively arranged at the bottom of the front of the caisson on the left and right sides of the oscillating float; the air inlet and outlet holes are connected with an air turbine.

The utility model can also include:

The back of the wing plate and the back of the caisson are in the same plane.

The utility model also aims to provide a comb-type breakwater system integrating oscillating water column and float-type power generation device, which is composed of a comb-type breakwater unit integrating oscillating water column and float-type power generation device.

The purpose of the utility model is achieved through the following technical solutions: the system is composed of comb-type breakwater units integrating oscillating water column and float-type power generation devices connected end to end, and the system ends with a caisson.

The utility model can also include:

The back of the wing plate and the back of the caisson in the comb-type breakwater unit of the integrated oscillating water column and the float type power generation device are in the same plane.

The beneficial effects of the present utility model are:

The utility model converts part of the wave energy in front of the embankment into electrical energy through the oscillating water column type power generation device and the oscillating float type power generation device; the wave resonance in the energy-capturing gas chamber is used to increase the amplitude, and the relative movement amplitude of the water body and the float is increased, thereby improving the wave energy. conversion efficiency. By converting the wave energy in front of the breakwater into electric energy, the utility model reduces the load on the front of the breakwater and improves the overall stability of the integrated system; at the same time, the integrated comb-type breakwater system improves the oscillating water column type and the oscillating float type wave energy generating device It can reduce the independent construction cost of oscillating water column type and oscillating float type wave energy power generation device.

Description of drawings

FIG. 1 is a schematic diagram of the overall structure of a comb-type breakwater unit integrating an oscillating water column and a float-type power generation device.

FIG. 2 is a front view of the structure of a comb-type breakwater system with an integrated oscillating water column and a float-type power generation device with two caisson tanks.

Figure 3 is a right side view of the unit structure of a comb-type breakwater integrated with an oscillating water column and a floating power generation device

Figure 4 is a left side view of the unit structure of a comb-type breakwater integrated with an oscillating water column and a float-type power generation device

FIG. 5 is a front view of the unit structure of a comb-type breakwater integrated with an oscillating water column and a floating power generation device

6 is a top view of the unit structure of a comb-type breakwater integrated with an oscillating water column and a float-type power generation device

Detailed ways

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

Based on the existing technology, the utility model proposes a comb-type breakwater system integrating an oscillating water column type and an oscillating float type wave energy generating device in order to alleviate the urgent demand for power supply for the construction of islands and reefs in my country. This new type of structure, on the one hand, can use wave energy power generation to alleviate the urgent need for power supply, and at the same time use the breakwater structure as the installation base for wave energy power generation devices to reduce power generation costs; Reduce the energy in front of the breakwater, thereby improving the stability of the overall structure of the comb breakwater.

The comb-type breakwater system integrating the oscillating water column and the float type power generation device of the utility model can also connect the nodding duck type power generation device and the hydraulic turbine type power generation device between the two caisson boxes.

The comb-type breakwater system integrating the oscillating water column and the float type power generation device includes: the comb-type breakwater system, the oscillating water column type wave energy power generation system, and the oscillating float type wave energy generation system. The comb-type breakwater system includes a riprap bed 7, an energy-capturing air chamber 3, a parapet 5, and a wing plate 6; wherein the energy-capturing air chambers 3 are arranged at intervals along the axis of the breakwater, and the wing plates 6 are arranged between adjacent energy-capturing air chambers 3. During this time, the parapet wall 5 is arranged above the energy-capturing air chamber 3 and the wing plate 6 . The oscillating water column type power generation system is built on the basis of the energy-capturing air chamber 3 of the comb-type breakwater. The energy-capturing air chamber 3 is opened under the energy-capturing air chamber 3 to form the energy-capturing air chamber inlet and outlet water holes 4, and the energy-capturing air chamber 3 is opened above the energy-capturing air chamber 3. The air inlet and outlet of the energy air chamber 1 is connected to the reciprocating air turbine at the air inlet and outlet to drive the generator to generate electricity; the oscillating float type power generation system is built on the basis of the energy capturing air chamber 3 of the oscillating water column type power generation system, and the oscillating float 2 is installed in the In the energy-capturing air chamber 3, the floats in the energy-capturing air chamber 3 do a heaving motion with the waves to capture the wave energy twice.

Comb Breakwater System: The system consists of a riprap bed, caisson, wing and parapet. The caisson is placed on the riprap foundation bed, the wing plate and the main body of the caisson are poured into a whole, and the concrete breast wall is poured above the caisson. . The caisson is transformed into an energy-capturing air chamber, hereinafter referred to as "energy-capturing air chamber". The wave will resonate in the energy-capturing air chamber, and the water surface amplitude formed by the resonance will be much higher than that of the normal wave, which greatly improves the energy-capturing efficiency of the air chamber. Power generation efficiency; at the same time, an oscillating float is installed in the energy-capturing gas chamber to perform secondary collection of wave energy in the energy-capturing gas chamber.

The oscillating water column type wave energy power generation device is improved on the basis of the comb type breakwater. The opening below the caisson of the comb type breakwater forms the water inlet and outlet of the wave, and the opening above the caisson forms the inlet and outlet holes to form the oscillating water column type wave energy generation device. Energy trapping chamber. A reciprocating air turbine is connected to the air inlet and outlet of the energy-capturing air chamber to drive the generator to generate electricity to form an oscillating water column type wave energy generating device.

The oscillating float type wave energy generator is installed in the caisson of the comb breakwater. The oscillation of the wave in the energy-capturing gas chamber drives the float to move, converting the wave energy into mechanical energy and then into electrical energy. The utility model combines the resonance of the wave in the energy-capturing gas chamber to increase the relative motion mechanical energy of the oscillating float; at the same time, the oscillating float is installed In the energy-capturing air chamber, the wave energy in the energy-capturing air chamber can be captured twice, thereby improving the power generation efficiency of wave energy; reducing the wave energy in front of the embankment, reducing the wave force in front of the embankment, and protecting the comb breakwater . The energy-capturing air chamber can protect the float from being directly impacted by waves, reduce the horizontal swing of the float, thereby increasing the effective vertical oscillation for the float to generate electricity, and also improving the working environment of the oscillating float.

The advantage of the integrated system is that the oscillating water column type and oscillating float type power generation system are used to fully obtain the wave energy in front of the embankment; placing the oscillating float in the energy-capturing air chamber of the oscillating water column type wave energy power generation device can capture the wave energy twice, which can significantly Improve the power generation efficiency of wave energy and effectively improve the working environment of the float device; use the comb-type breakwater foundation as the installation foundation of the oscillating water column type and oscillating float type power generation system, which can effectively reduce the cost of power generation.

The function realization process of the comb breakwater system integrating the oscillating water column type and the oscillating float type power generation device is as follows:

When the wave crest reaches the front side of the integrated system, on the one hand, the wave enters the energy-capturing air chamber 3 through the water inlet and outlet holes 4 of the energy-capturing air chamber, causing the water surface in the energy-capturing air chamber 3 to rise, thereby compressing the air in the energy-capturing air chamber 3 and increasing the energy capture. The air pressure in the air chamber 3 makes the air pressure in the energy-capturing air chamber 3 greater than the atmospheric pressure, and the high-pressure air in the energy-capturing air chamber 3 flows into the atmosphere through the inlet and outlet holes 1 of the energy-capturing air chamber and drives the air-in and outlet holes 1 of the energy-capturing air chamber. On the other hand, the rise of the water body in the energy-capturing air chamber 3 will drive the oscillating float 2 to rise, and the inner and outer layers of the oscillating float will move relative to each other, which will drive the hydraulic device to pressurize. Realize the capture of wave energy and the conversion to hydraulic energy, and then use the hydraulic generator set to convert the hydraulic energy into electrical energy.

When the wave trough reaches the front side of the integrated system, on the one hand, the waves flow out of the energy-capturing air chamber 3 through the water inlet and outlet holes 4 of the energy-capturing air chamber, causing the water surface in the energy-capturing air chamber 3 to drop. The air pressure in the air chamber 3 makes the air pressure in the energy-capturing air chamber 3 less than the atmospheric pressure, and the high-pressure air in the atmosphere flows into the energy-capturing air chamber 3 through the energy-capturing air-chamber inlet and outlet air holes 1 and is driven and installed in the energy-capturing air chamber inlet and outlet air holes 1 The reciprocating air turbine device rotates, and then realizes the conversion of wave energy to electric energy; on the other hand, the falling of the water body in the energy-capturing air chamber 3 will drive the oscillating float 2 to descend, and the inner and outer layers of the oscillating float will move relative to each other, which will drive the hydraulic device. The conversion of wave energy to hydraulic energy, and then the hydraulic generator set is used to convert the hydraulic energy into electrical energy.

The beneficial effects of the present utility model are:

The utility model converts part of the wave energy in front of the embankment into electrical energy through the oscillating water column type power generation device and the oscillating float type power generation device; the wave resonance in the energy-capturing gas chamber is used to increase the amplitude, and the relative movement amplitude of the water body and the float is increased, thereby improving the wave energy. conversion efficiency. Convert the wave energy in front of the breakwater into electrical energy, reduce the load in front of the breakwater, and improve the overall stability of the integrated system; at the same time, the integrated comb breakwater system improves the working environment of the oscillating water column type and oscillating float type wave energy power generation device, reducing the The independent construction cost of oscillating water column type and oscillating float type wave energy power generation device.

1. The comb-type breakwater caisson is transformed into an energy-capturing air chamber, and an oscillating water column wave energy power generation device is built on the basis of the comb-type breakwater caisson. One box can be used for two purposes, which greatly reduces the construction cost of the oscillating water column type wave energy power generation device.

2. Install the oscillating float type wave energy power generation device in the energy-capturing air chamber. The energy-capturing air chamber can prevent the oscillating float from being directly impacted by waves, improve the working environment of the oscillating float, increase the working life of the power generation device, and improve the energy-capturing efficiency of the oscillating float. ; It is more convenient to install the oscillating float-type wave energy power generation device in the energy-capturing air chamber and use the foundation together, which can reduce the basic installation cost of the power generation device and make the later operation and maintenance more convenient.

3. The oscillating float type wave energy generation device is integrated in the energy capturing air chamber of the oscillating water column type wave energy power generation device, and the oscillating float can be used to capture the wave energy twice, which greatly improves the wave energy capture efficiency.

4. The oscillating water column type and oscillating float type wave energy power generation device is integrated in the comb-type breakwater, which can convert the wave energy in front of the embankment into electrical energy and provide electrical energy for the construction of coastal islands and reefs; reduce the overall energy in front of the embankment and reduce the load in front of the embankment. force, improving the overall stability and safety of the comb breakwater system.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (4)

1. a comb-type breakwater unit integrating oscillating water column and a float type power generation device, comprising a caisson, the caisson is installed on a riprap bed, and a parapet is installed on the top of the caisson; the length of the parapet is greater than the caisson, and the parapet exceeds the caisson A wing plate is installed below the part, and the width of the wing plate in the vertical direction is smaller than that of the caisson; the bottom of the caisson is provided with water inlet and outlet holes, and the top of the caisson is provided with air inlet and outlet holes; it is characterized in that: it also includes an oscillating float; The oscillating float is installed at the inner center of the caisson; the two water inlet and outlet holes are respectively arranged at the bottom of the front of the caisson on the left and right sides of the oscillating float; the air inlet and outlet holes are connected with an air turbine. 2 . The comb-type breakwater unit integrating the oscillating water column and the float-type power generation device according to claim 1 , wherein the back side of the wing plate and the back side of the caisson are on the same plane. 3 . 3. A comb-type breakwater system integrating oscillating water column and a comb-type breakwater unit of an integrated oscillating water column and a float-type power generation device based on claim 1, characterized in that: the system is composed of an integrated oscillation The comb-type breakwater unit of the water column and the floating power generation device is connected end to end, and the system ends with a caisson. 4. The comb-type breakwater system integrating oscillating water column and float-type power generation device according to claim 3, characterized in that: the back of the wing plate in the comb-type breakwater unit of the integrated oscillating water-column and float-type power generation device In the same plane as the back of the caisson.

Images