CN209760138U

CN209760138U - Comb-type breakwater system integrating oscillating floater type and hydraulic turbine type power generation device

Info

Publication number: CN209760138U
Application number: CN201920274681.9U
Authority: CN
Inventors: 李明伟; 周加春; 耿敬; 耿贺松; 赵玄烈; 杨璨; 张洋; 张立东
Original assignee: Harbin Engineering University
Current assignee: Harbin Engineering University
Priority date: 2019-03-05
Filing date: 2019-03-05
Publication date: 2019-12-10
Anticipated expiration: 2029-03-05

Abstract

the utility model provides a comb-type breakwater system integrating an oscillating floater type and a hydraulic turbine type power generation device, which comprises a hollow contracted water channel breakwater system, an oscillating floater type power generation system and a hydraulic turbine type power generation system; the comb type permeable contracted water channel breakwater system comprises a riprap foundation bed, chamfered caissons arranged on the riprap foundation bed at intervals, a front wing plate and a rear wing plate arranged between the chamfered caissons, and a breast wall arranged above the chamfered caissons, the front wing plate and the rear wing plate; the hydraulic turbine type power generation system is arranged on the riprap base and below the rear wing plate. The utility model discloses design into the chamfer form with the caisson, can form the shrink water course, the gathering wave energy improves the wave amplitude, increases the relative mechanical displacement of float, improves the generating efficiency.

Description

comb-type breakwater system integrating oscillating floater type and hydraulic turbine type power generation device

Technical Field

The utility model relates to a comb breakwater system especially relates to an integrated oscillating floater formula and hydroelectric turbine formula power generation facility's comb breakwater system.

Background

With the increasing tension of world energy, ocean energy is a new energy source and attracts people's attention with its unique advantages and strategic position. According to statistics, ocean energy accounts for 70% of the total energy of the whole world, wherein tidal current energy is about 50 hundred million kW, wave energy is about 25 hundred million kW, and if the huge ocean energy can be developed and utilized, the whole mankind can be benefited. Meanwhile, ocean energy is a main way for solving the energy shortage of coastal areas and islands in China. China is in coastal areas with concentrated population, dense assets and developed social and economic benefits. Coastal islands are new socioeconomic bodies under development or developed. The lack of electric power becomes a key factor for restricting the social and economic development of coastal areas, particularly islands in China. The construction of an ocean power generation system suitable for coastal areas and islands according to local conditions is one of the main ways of supplementing the shortage of coastal power and solving the electricity utilization problem of residents on islands.

The comb-type breakwater is a novel breakwater form, and is characterized in that a traditional square caisson is taken out according to a certain proportion and replaced by a caisson wing plate, and a comb-tooth-shaped vertical breakwater is formed on a plane. The broken part of the prefabricated breast wall forms a wave-dissipating chamber with the prefabricated breast wall, has the advantages of wave gathering, wave dissipating, flow penetration, light reduction of foundation bearing capacity and the like, and has been built into a demonstration project in a large-scale continuous kiln bay harbor area. Comb-type breakwater pterygoid lamina and front wall are not in a plane, and the interval between the two makes the wave power arrive the peak value of breakwater crisscross, has reduced the total horizontal wave power that the breakwater received, has both done the dead weight and has alleviateed and avoided the dead weight to alleviate the adverse effect who brings, keeps stable in structure. The comb breakwater wave dissipation indoor hydrodynamic characteristics are complex, but theoretical analysis can prove that the wave amplitude of the position is increased relative to the position of the front wall, and a strong wave gathering effect is achieved.

the oscillating float type wave energy power generation device is a wave energy utilization device which drives a float to move up and down through waves and converts the relative movement mechanical energy of the float into electric energy, and has practical application at home and abroad. However, the fixing mode still has certain problems: the small-sized power generation device can directly float on the water surface, but the power generation efficiency is not high, and the large-sized power generation device has two anchoring modes, namely, the device is suspended in the sea through a traction rope, but the device is greatly influenced by the ocean current and is not stable enough; the other is directly fixed on the seabed, the mode is only suitable for the shallow sea field, the condition suitable for fixing is created on the seabed when the water depth is deeper, the cost is relatively high, and the satisfactory power generation cost performance is difficult to achieve. Therefore, the device has higher requirements on the stability and the reliability of the structure in a severe service environment, and the advantage of high power generation efficiency of the device is limited. The oscillating float type power generation device is integrated in the middle of the contracting water channel comb-type breakwater caisson, so that the cost for independently building a foundation of the oscillating float type power generation device is saved, the working environment of the oscillating float is improved by utilizing the caisson and the wing plates, the problems of the fixed cost and the working environment of the oscillating float type power generation device can be solved, and the advantage of high efficiency of the oscillating float type power generation device is fully utilized.

the hydro-turbine type power generation device directly drives the generator set by utilizing the tide to convert the tide energy into the electric energy, and has simple structure and high power generation efficiency; however, the basic fixing cost is high, the working tide needs other devices for constraint, and the satisfactory cost performance of power generation cannot be achieved. The hydro-turbine type power generation device is integrated in the middle of the comb type permeable and contractible water channel breakwater caisson, so that the cost for independently building a foundation of the hydro-turbine type power generation device is saved, and the comb type permeable and contractible water channel breakwater structure is utilized to restrain the tidal current of ports and exits to guarantee the maximization of the power generation efficiency.

Disclosure of Invention

the utility model aims at providing a comb breakwater system of integrated oscillating float and hydraulic turbine formula power generation facility in order to alleviate the urgent need of our country island reef construction to power supply.

The purpose of the utility model is realized like this:

a comb-type breakwater system integrating an oscillating float type and a hydraulic turbine type power generation device comprises a hollow contracted water channel breakwater system, an oscillating float type power generation system and a hydraulic turbine type power generation system;

The comb type permeable contracted water channel breakwater system comprises a riprap foundation bed, chamfered caissons arranged on the riprap foundation bed at intervals, a front wing plate and a rear wing plate arranged between the chamfered caissons, and a breast wall arranged above the chamfered caissons, the front wing plate and the rear wing plate; the hydraulic turbine type power generation system is arranged on the riprap base and below the rear wing plate.

The utility model discloses still include such characteristics:

1. The chamfering caisson and the wing plate are integrated;

2. The chamfered caisson breakwaters are axially arranged at intervals;

Compared with the prior art, the beneficial effects of the utility model are that:

1. The caisson is designed into a chamfered form, a contraction water channel can be formed, wave energy is gathered, wave amplitude is improved, relative mechanical displacement of the floater is increased, and power generation efficiency is improved.

2. The front wing plate, the rear wing plate and the chamfered caisson form a bin chamber, so that the transverse and longitudinal impact of the floater directly caused by wave force can be avoided; the efficiency of the floater moving up and down periodically along with waves is guaranteed; the working environment of the oscillating floater is improved, and meanwhile, the power generation efficiency is improved.

3. The oscillating floater type generating set and the hydraulic turbine type generating set are arranged on the riprap foundation bed of the comb-type breakwater, so that the cost for independently building the foundation bed is reduced, and the generating cost performance is improved; wave energy and tide energy before the dyke are converted into electric energy, so that the total energy before the dyke is reduced, the acting force of a load before the dyke is reduced, and the overall stability and safety of the comb-type air-permeable contraction water channel breakwater system are improved.

the novel structure type of the integrated comb-type permeable shrinkage water channel breakwater system, the oscillating float type wave power generation device and the hydro-turbine type power generation device conversion system can utilize wave energy and tidal energy to generate power to relieve the urgent need of island reef power supply on the one hand, and simultaneously utilizes the breakwater structure as the installation foundation of the wave energy and tidal energy power generation device to reduce the power generation cost; on the other hand, the wave energy and tidal current energy are converted into electric energy by using the power generation device, so that the energy in front of the breakwater can be reduced, and the stability of the integral structure of the comb-type breakwater is improved;

The integrated system of the utility model has the advantages that the energy in front of the dike is fully obtained by utilizing the oscillating floater type power generation system and the hydraulic turbine type power generation system; the chamfered caisson is utilized to form a contracted water channel to gather energy, so that the conversion efficiency of wave energy and tidal energy is improved; the oscillating floater type power generation system is arranged between two caissons and a bin formed by front and rear wing plates, so that the power generation efficiency is obviously improved, and the working environment of the floater device is effectively improved; the comb-type breakwater foundation is used as an installation foundation of the oscillating floater type power generation system and the hydraulic turbine type power generation system, so that the power generation cost can be reduced.

Drawings

FIG. 1 is a schematic diagram of the unit structure of the present invention;

FIG. 2 is a schematic view of the assembly structure of the present invention;

FIG. 3 is a right side view of the unit structure of the present invention;

FIG. 4 is a left side view of the unit structure of the present invention;

FIG. 5 is a front view of the unit structure of the present invention;

Fig. 6 is a top view of the unit structure of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

The utility model discloses based on prior art, for alleviating the urgent demand of china's island reef construction to power supply, provide an integrated vibration float formula power generation facility and hydraulic turbine formula power generation facility's comb formula shrinkage water course breakwater system that passes through. The system comprises: the system comprises a comb type open contraction water channel breakwater system, an oscillation float type power generation system and a hydraulic turbine type power generation system.

comb type air-permeable contraction water channel breakwater system: the system consists of a riprap foundation bed, a chamfering caisson, a front wing plate, a rear wing plate and a breast wall. The angle cutting caisson is sunk on the riprap foundation bed, the wing plates and the caisson main body are poured into a whole, the concrete breast wall is poured above the caisson, the left caisson structure and the right caisson structure are connected into a whole under the combined action of the wing plates and the breast wall, and the overall stability of the structure is improved. The chamfered caissons at two sides and the front wing plate and the rear wing plate form a chamber, the water surface in the chamber has a fixed fluctuation frequency, the water rushing into the chamber is reflected by the rear wing plate after being collided, if the water surface can resonate with waves along the same direction of the falling water surface, the indoor water surface oscillation can be close to the external wave frequency by selecting a proper chamber size, the resonant water surface fluctuation amplitude can be far higher than the wave amplitude, and the relative motion mechanical energy of the floater is greatly improved, so that the power generation efficiency is improved. Meanwhile, the traditional comb-type breakwater square box is chamfered to form a contraction water channel, so that energy can be gathered, and the power generation efficiency of the hydraulic turbine type power generation device is directly improved.

The oscillating float type wave power generation device is arranged between two caissons and a bin formed by the front wing plate and the rear wing plate. The floater is driven to move relatively by the amplitude of the waves, and the wave energy is converted into mechanical energy and then converted into electric energy, the amplitude can be improved by combining the bin and the contraction water channel, and the mechanical energy of the relative movement of the oscillating floater is increased, so that the power generation efficiency is improved; wave energy in front of the breakwater is reduced, wave force in front of the breakwater is reduced, and loads borne by wing plates and breast walls are reduced, so that the purpose of protecting the comb breakwater is achieved. The chamber can protect the float from being directly impacted by waves, reduce the horizontal and longitudinal swing and improve the working environment of the oscillating float.

The hydraulic turbine type power generation device is arranged at the through hollow part of the comb-type breakwater below the rear wing plate by utilizing a comb-type breakwater foundation. When tide rises, tide flows into the harbor area through the open part of the comb-type breakwater, the rotation of the hydraulic turbine is driven to generate electricity in the process, and the water channel is contracted to collect the tide, so that the generating efficiency can be improved; in the falling tide process, the comb-type breakwater integrally restrains the tide, so that the tide only flows out from the breakwater permeable part provided with the hydraulic turbine type generating set, the tide utilization rate is increased, and the generating efficiency is improved.

with reference to the accompanying drawings; the device comprises a rear wing plate 1, a front wing plate 2, an oscillating floater 3, a hydraulic turbine 4, a breast wall 5, a bevel caisson 6 and a riprap foundation bed 7.

A comb-type open-shrinkage water channel breakwater system integrating an oscillating floater type and a hydraulic turbine type power generation device comprises: the system comprises a comb type open contraction water channel breakwater system, an oscillation float type power generation system and a hydraulic turbine type power generation system. The comb type air-permeable contraction water channel breakwater system comprises a riprap foundation bed 7, a chamfered caisson 6, a breast wall 5, a front wing plate 2 and a rear wing plate 1; wherein the chamfered caisson 6 is arranged along the axial direction of the breakwater at intervals, the front wing plate 2 and the rear wing plate 1 are arranged between the adjacent chamfered caisson 6, and the breast wall 5 is arranged above the chamfered caisson 6 and the rear wing plate 1 of the front wing plate 2. The oscillating floater type generating system is arranged between the chamfered caisson 6 and a bin enclosed by the front wing plate 2 and the rear wing plate 1; the hydraulic turbine type power generation system is arranged on the riprap foundation bed 7 and is positioned at the penetration position of the comb type penetration contraction water channel breakwater, namely below the rear wing plate 1.

The comb type air-permeable contraction water channel breakwater system integrating the oscillating floater type and the hydraulic turbine type power generation device has the following function realization process:

on one hand, the wave energy is converged for the first time through a contraction water channel formed by the chamfered caisson 6, so that the wave amplitude is improved; on the other hand, the waves resonate in a bin formed by two adjacent chamfered caissons 6, the front wing plate 2 and the rear wing plate 1, so that the wave amplitude can be greatly improved; the increase in wave amplitude can increase the relative motion mechanical energy of the oscillating float, which is then converted into electrical energy by the power generation device. Therefore, the design of the rear wing plate 1 improves the generating efficiency of the oscillating floater type generating set through the chamfered caisson 6 and the front wing plate 2. Meanwhile, the floater is arranged between the chamfered caisson 6 and the front wing plate 2, and a bin surrounded by the rear wing plate 1, so that the floater can be prevented from being directly impacted transversely and longitudinally by wave force; the working environment of the oscillating float is greatly improved.

On one hand, when tide rises, tide flows into a harbor area through a bevel caisson 6, a permeable opening formed by a rear wing plate 1 and a riprap foundation bed 7, and the tide drives a hydraulic turbine 4 arranged at the permeable opening in the flowing process to convert tide energy into electric energy; the tidal current is converged through a contraction water channel formed by the chamfered caisson 6, so that the generating efficiency of the tidal current energy can be improved; on the other hand, when tide falls, the water level in the harbor area is higher than the water level outside the harbor area, the comb-type breakwater can block tide and restrain the tide in the comb-type breakwater from flowing out of the through hole, so that the tide energy can be utilized to the maximum degree, and the power generation efficiency is improved.

Claims

1. A comb-type breakwater system integrating an oscillating floater type and a hydraulic turbine type power generation device is characterized by comprising a comb-type permeable contracted water channel breakwater system, an oscillating floater type power generation system and a hydraulic turbine type power generation system;

2. the comb breakwater system of an integrated oscillating float and hydro turbine power plant of claim 1 wherein the chamfered caisson is integral with the wing plate.

3. The comb breakwater system of the integrated oscillating float and hydro-turbine power plant of claim 1 or 2, wherein the chamfered caisson breakwater is axially spaced.