CN111188719A - Wind wave power generation device, positioning method and positioning module for cold sea area - Google Patents

Wind wave power generation device, positioning method and positioning module for cold sea area Download PDF

Info

Publication number
CN111188719A
CN111188719A CN202010193575.5A CN202010193575A CN111188719A CN 111188719 A CN111188719 A CN 111188719A CN 202010193575 A CN202010193575 A CN 202010193575A CN 111188719 A CN111188719 A CN 111188719A
Authority
CN
China
Prior art keywords
wave
power generation
generation device
ice
wind
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010193575.5A
Other languages
Chinese (zh)
Inventor
张娜
李帅
刘维林
蒋学炼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Chengjian University
Original Assignee
Tianjin Chengjian University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tianjin Chengjian University filed Critical Tianjin Chengjian University
Priority to CN202010193575.5A priority Critical patent/CN111188719A/en
Publication of CN111188719A publication Critical patent/CN111188719A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/06—Moles; Piers; Quays; Quay walls; Groynes; Breakwaters ; Wave dissipating walls; Quay equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B11/00—Parts or details not provided for in, or of interest apart from, the preceding groups, e.g. wear-protection couplings, between turbine and generator
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F03D80/40—Ice detection; De-icing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/008—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations the wind motor being combined with water energy converters, e.g. a water turbine
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/11—Combinations of wind motors with apparatus storing energy storing electrical energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/727—Offshore wind turbines
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E70/00—Other energy conversion or management systems reducing GHG emissions
    • Y02E70/30—Systems combining energy storage with energy generation of non-fossil origin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P80/00—Climate change mitigation technologies for sector-wide applications
    • Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Energy (AREA)
  • Sustainable Development (AREA)
  • Power Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structural Engineering (AREA)
  • Civil Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

The invention relates to a wind wave power generation device, a positioning method and a positioning module for a cold sea area, belonging to the technical field of power generation in the cold sea area, wherein the wave energy power generation device is combined with a slope-type breakwater; it is characterized in that the wind wave power generation device for the cold sea area at least comprises: the positioning grooves are laid on the slope surface and sequentially spliced into a honeycomb structure; the swinging power generation device is arranged in each positioning groove; each swing power generation device is connected with the storage battery through a voltage stabilizing rectifier. By adopting the technical scheme, the invention can effectively predict the wave climbing height of the water area, and the chloroprene rubber swinging piece is fixed in the honeycomb structure body in the wave climbing height range, so that the damage of ice load to the energy conversion device can be effectively prevented, and the energy conversion device is particularly suitable for sea areas which are easily affected by ice disasters in winter.

Description

Wind wave power generation device, positioning method and positioning module for cold sea area
Technical Field
The invention belongs to the technical field of power generation in cold sea areas, and particularly provides a wind wave power generation device, a positioning method and a positioning module for the cold sea areas.
Background
With global warming and the annual reduction of arctic glaciers, the coexistence of floating ice and waves tends to be normalized. The ice condition in recent years of the North pole in summer and the Bohai sea in winter in China is light. According to statistics, the north pole in summer and the wind wave in the Bohai sea in winter are large, and are periods with the largest average wave energy current density. However, the existing wave energy estimation methods ignore the influence of sea ice, which can result in overestimation of the wave energy of the Bohai sea, and the overestimation can seriously mislead site selection of a wave energy power plant.
Furthermore, the presence of sea ice tends to cause damage to the wave energy conversion devices. The main wave energy power generation technologies in China include an oscillating water column type, an oscillating floater type and a wave crossing type. The oscillating water column type can be classified into an offshore type, a shore-based pneumatic type, and the like. The oscillating float can be classified into a submerged float type, an overrunning clutch type, a pendulum type, a vertical float type and a deep sea float type. The overtopping mode can be divided into a layered overtopping mode and a double-contraction wave channel mode. In the existing research on wave energy collection and utilization, the influence of sea ice on a wave energy conversion device is often ignored, and the existing wave energy collection power generation measures are not suitable for sea areas under the condition of freezing in cold regions.
The current research on the energy conversion device which is compatible with ice prevention and wind wave complementation is relatively lagged. The wave energy collecting and utilizing method mainly shows that the research on the sea ice digestion and distribution condition, the basic physical characteristics of the sea ice and the sea ice load control method is insufficient, and further development of wave energy collection and utilization in cold regions is influenced to a great extent. Therefore, the invention provides a wave energy estimation method and a wave energy complementary wave energy conversion device suitable for an icing sea area in a cold region, which can effectively collect wave energy and wind energy when floating ice and waves coexist, and can prevent icing by heating the wave energy conversion device by using a heating rod. In addition, the wave energy conversion device can be directly installed on an established slope type breakwater, the damage of ice load to the wave energy conversion device can be effectively prevented, the effective utilization of clean energy can be realized, and the wave energy conversion device is particularly suitable for being used in large backgrounds where a newly-built sea reclamation project is not allowed.
Disclosure of Invention
The invention provides a wind wave power generation device, a positioning method and a positioning module for a cold sea area, which aim to solve the technical problems in the prior art. The influence of sea waves and ice blocks on wave energy is comprehensively considered, and then accurate site selection of the power generation device and structural improvement of the power generation device are achieved.
The invention provides a wind wave power generation device for a cold sea area; the method comprises the following steps:
the positioning grooves are laid on the slope surface and sequentially spliced into a honeycomb structure (2);
a swinging power generation device (4) arranged in each positioning groove;
each swing power generation device (4) is connected with the storage battery through a voltage stabilizing rectifier (5).
Furthermore, the swing power generation device (4) comprises a swing piece (3), the swing piece (3) is installed in the positioning groove through a universal head, and a plurality of groups of swing power generation devices are connected in parallel to effectively improve the power generation efficiency; a carbon fiber rope is embedded in the swing piece (3); one end of the carbon fiber rope is fixedly connected with the left side of a piston of the pump (6), a chamber on the left side of the pump (6) is connected with the motor (7) through a pipeline, a return spring (8) is arranged on the side wall of the pump, and the auxiliary push plate is reset; the motor (7) is connected with the generator (9) through a power rotating shaft, and the output terminal of the generator (9) is connected with the storage battery through the voltage-stabilizing rectifier (5), namely, the current is stored in the storage battery.
Further, the wind wave power generation device for the cold sea area further comprises a heating rod for preventing water flow in the positioning groove from freezing, and the storage battery is connected with the heating rod.
The rocking part (3) and the pump (6) are each N M, wherein: n and M are both natural numbers larger than 1; the pipelines comprise N × M primary pipelines and M main pipelines; the swinging pieces (3) are divided into N groups; the lower end of each main pipeline is communicated with the N primary pipelines in the same group, each main pipeline is provided with a motor (7), and each motor (7) is connected with a generator (9).
Further, the swing piece (3) is a chloroprene rubber swing piece.
Further, the swinging piece (3) is at least 30cm long, and the diameter of the carbon fiber rope in the swinging piece is 12 mm.
Further, the storage battery is a lead-acid battery.
The second purpose of the invention is to provide a positioning method of the wind wave power generation device for the cold sea area; the method comprises the following steps:
s1, wave energy estimation in the presence of ice; the renewable resources of ocean wave energy are usually quantitatively described in terms of wave energy current density, which is estimated using the following formula:
Figure BDA0002416781720000031
wherein: p is wave energy current density, the unit is KW/m, and the wave energy is used for calculating the wave power accumulated in the whole water body from the sea level to the sea bottom surface in the width direction of each meter of wave crest; rho is the density of seawater, and 1.028kg/m is taken3(ii) a k is the number of waves,
Figure BDA0002416781720000032
wherein L is the wavelength corresponding to the effective period and the unit is m; t iseIs the energy period, in units of s, multiplied by the spectral peak period T by 0.9PTo represent; l and TPAll are calculated by a dynamic spectrum balance equation model of SWAN; hsEffective wave height, in m, for ice effects;
s2, calculating the wave field distribution at the engineering position of the Bohai and the Bohai sea area based on the following equation by adopting a dynamic spectrum balance equation model and wind as a driving force according to the wave calculation:
Figure BDA0002416781720000033
wherein: UFRIC is the wind friction speed; CDRAG is the WIND drag coefficient, when WIND speed WIND10 at 10m height >7.5m/s, CDRAG ═ 0.001 (0.8+0.065 WIND 10); when WIND10 is less than or equal to 7.5m/s, the recommended value is 0.0013; ice concentration is between 0 and 1; WIND10 is the WIND speed at 10m height;
calculating the air-out friction speed UFRIC according to the formula (2); calculating a JOHNWAP spectrum based on the UFRIC and the gravity acceleration;
calculating the action density under the current time level according to the frequency corresponding to the input spectrum peak period, and further obtaining a zero-order moment ETOT of the wave energy density; and obtaining an effective wave height H considering the influence of ice based on the following formula (3)s
Figure BDA0002416781720000041
According to the estimated value of the wave energy current density P, the built slope type breakwater on the near bank of the Bohai sea is further estimated, and the site selection of the power generation slope type breakwater is determined;
s3, predicting the wave climbing height when ice exists; the forecasting formula of the wave climbing height in the presence of ice is as follows:
R＝KΔR1Hs(4)
wherein: r is the wave run-up when ice exists; kΔCoefficient of permeability, K, depending on the type of facing structure of the bankΔThe value range is 0-1; when K isΔWhen 1, denotes a smooth and watertight breakwater facing, KΔThe smaller the size, the rougher the breakwater armor surface; r1Is when KΔ＝1，HsWhen the wave length is 1m, the wave rises on the breakwater face which is smooth and impermeable;
and S4, determining the positions of the honeycomb structure and the swing power generation device according to the predicted value of the wave climbing height R when ice exists. The R value is a wave run-up value, which is the height at which the wave runs up the slope on the slope bank, and contains the influence of ice in this patent. In general, the R value fluctuates around the water level. In the case of low water level and low incident wave height, the R value is small, but at high water level the R value may reach the top of the bank, so there is a range of R values. After the range of the wave climbing height is calculated by combining the formulas (1) to (4) with the local water level condition, the power generation device is arranged in the range to ensure that the power generation device can absorb the wave energy.
The third objective of the present invention is to provide a positioning module of a wind wave power generation device for cold sea area, at least comprising:
the wave energy estimation module is used for estimating the wave energy in the presence of ice; the renewable resources of ocean wave energy are usually quantitatively described in terms of wave energy current density, which is estimated using the following formula:
Figure BDA0002416781720000051
wherein: p is wave energy current density, the unit is KW/m, and the wave energy is used for calculating the wave power accumulated in the whole water body from the sea level to the sea bottom surface in the width direction of each meter of wave crest; rho is the density of seawater, and 1.028kg/m is taken3(ii) a k is the number of waves,
Figure BDA0002416781720000052
wherein L is the wavelength corresponding to the effective period and the unit is m; t iseIs the energy period, in units of s, multiplied by the spectral peak period T by 0.9PTo represent; l and TPAll are calculated by a dynamic spectrum balance equation model of SWAN; hsEffective wave height, in m, for ice effects;
a dynamic spectrum balance equation model is adopted for wave calculation, wind is used as a driving force, and wave field distribution at the engineering position of the Bohai and the Bohai sea area is calculated based on the following equation:
Figure BDA0002416781720000053
wherein: UFRIC is the wind friction speed; CDRAG is the WIND drag coefficient, when WIND speed WIND10 at 10m height >7.5m/s, CDRAG ═ 0.001 (0.8+0.065 WIND 10); when WIND10 is less than or equal to 7.5m/s, the recommended value is 0.0013; ice concentration is between 0 and 1; WIND10 is the WIND speed at 10m height;
calculating the air-out friction speed UFRIC according to the formula (2); calculating a JOHNWAP spectrum based on the UFRIC and the gravity acceleration;
calculating the action density under the current time level according to the frequency corresponding to the input spectrum peak period, and further obtaining a zero-order moment ETOT of the wave energy density; and obtaining an effective wave height H considering the influence of ice based on the following formula (3)s
Figure BDA0002416781720000061
According to the estimated value of the wave energy current density P, the built slope type breakwater on the near bank of the Bohai sea is further estimated, and the site selection of the power generation slope type breakwater is determined;
a wave climbing prediction module when ice exists; the forecasting formula of the wave climbing height in the presence of ice is as follows:
R＝KΔR1Hs(4)
wherein: r is the wave run-up when ice exists; kΔCoefficient of penetration, K, associated with facing blocksΔThe value range is 0-1; when K isΔWhen 1, denotes a smooth and watertight breakwater facing, KΔThe smaller the size, the rougher the breakwater armor surface; r1Is when KΔ＝1，HsWhen the wave length is 1m, the wave rises on the breakwater face which is smooth and impermeable;
a location prediction module; and determining the positions of the honeycomb structure and the swing power generation device according to the predicted value of the wave climbing height R in the presence of ice. The value of R in this patent includes the effect of ice. In general, the R value fluctuates around the water level. In the case of low water level and low incident wave height, the R value is small, but at high water level the R value may reach the top of the bank, so there is a range of R values. After the range of the wave climbing height is calculated by combining the formulas (1) to (4) with the local water level condition, the power generation device is arranged in the range to ensure that the power generation device can absorb the wave energy.
The invention has the beneficial effects that:
the invention can effectively prevent the damage of ice load to the wave energy conversion device, and is particularly suitable for the wave energy conversion device in the cold region which is easily affected by ice disasters. The breakwater is a slope type breakwater, and a honeycomb structure is arranged on the surface of the breakwater, so that waves can be effectively eliminated, and the damage of sea ice to the internal swing power generation device can be prevented. The inner space size of the honeycomb structure meets 360-degree all-directional swing of the chloroprene rubber swing piece. The chloroprene rubber swinging piece is at least 30cm long, a carbon fiber rope with the diameter of 12mm is connected inside the chloroprene rubber swinging piece, one end of the carbon fiber rope is connected with the pump, and when the chloroprene rubber swinging piece is static, the carbon fiber rope keeps a tightening state. The swing power generation device is provided with a voltage-stabilizing rectifier, a chloroprene rubber swing piece, a spring, a motor, a generator and a pump, the chloroprene rubber swing piece is driven to swing randomly when wave flapping and strong wind arrives, a piston is pulled by an internal carbon fiber rope to move left, the pressure of oil pressure in a cavity at the left side of the pump is increased, a power medium is converged to a main pipe by a branch pipeline, and a motor impeller in the main pipe rotates to drive the generator to generate power. And rectifying the wave energy collected by the swing power generation device into direct current through a voltage-stabilizing rectifier and storing the direct current into a lead-acid battery. The lead-acid battery transmits the electric quantity to the heating rod to prevent the swinging piece from being frozen, and the residual electric quantity is used as a power supply supplement source for the port industrial area. The method specifically comprises the following steps:
1) the power generation device can be used in ice-free sea areas and also can be applied to frozen sea areas in cold regions near shore in winter.
2) The neoprene swinging piece can swing freely under the action of wave energy and wind energy, the pump is driven by the internal carbon fiber rope, and the motor and the generator are sequentially driven by the pump to generate electricity.
3) Wave element data are provided by a dynamic spectrum balance equation model by using a wave energy current density empirical formula, so that the wave energy current density distribution condition in the presence of ice can be estimated, and the site selection of the power generation slope type breakwater is further determined.
4) The arrangement position of the swing power generation device can be estimated by considering a wave climbing prediction formula used under the action of sea ice.
5) The used heating rod can be internally provided with a temperature controller, and the temperature is kept unchanged when reaching 5 ℃, so that the energy is saved, and the swinging piece can be prevented from being frozen.
6) The proposed wind wave energy conversion device with complementary waves is a hybrid power generation technology of various clean energy sources, which is proposed by combining a slope type breakwater built near the Bohai sea of the ring. The energy-saving, power generation and anti-icing technology proposed by the existing breakwater engineering is fully utilized;
7) the technical scheme is not only suitable for the cold sea areas with ice, but also suitable for the sea areas without ice.
Drawings
FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention;
FIG. 2 is a wave-facing side elevation view of the preferred embodiment of the present invention;
FIG. 3 is a partial block diagram of a preferred embodiment of the present invention, showing the connection of the rocking member and the pump;
FIG. 4 is an enlarged view of a portion of the preferred embodiment of the present invention;
fig. 5 is an enlarged view of the main tube of the preferred embodiment of the present invention.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 5, a wind wave power generation device for cold sea area includes: on the breakwater 1: the device comprises a honeycomb structure 2, a swinging piece 3 (preferably a neoprene swinging piece), a swinging power generation device 4, a voltage stabilizing rectifier 5, a pump 6, a motor 7, a spring 8, a power generator 9, a lead-acid battery 10, a heating rod 11 and a motor impeller 12. Wherein: the breakwater 1 is the entire member. The swing power generation device 4 comprises a swing piece 3, a voltage-stabilizing rectifier 5, a pump 6, a motor 7, a spring 8 and a generator 9. The surface of the slope breakwater is provided with a honeycomb structure, and the structural form can effectively eliminate waves and prevent the damage of sea ice to the internal swing power generation device. The swing power generation device is fixed in the honeycomb structure, and damage of ice load to the swing power generation device can be effectively prevented. The voltage stabilizing rectifier converts wave energy alternating current into direct current and stores the direct current into a lead-acid battery. The heating rod is powered by a lead-acid battery, and a temperature controller in the heating rod keeps the temperature unchanged when the temperature reaches 5 ℃. The wave-facing surface of the swinging piece 3 can be a plane rectangle or an arc.
The swing power generation device 4 comprises a swing piece 3 positioned in each positioning groove, the swing pieces 3 are arranged in the positioning grooves through universal heads, and a plurality of groups of swing power generation devices are connected in parallel to effectively improve the power generation efficiency; a carbon fiber rope is embedded in the swing piece 3; one end of the carbon fiber rope penetrates into the pump cavity from a central hole in the end face of the pump cavity and then is fixedly connected to the left central position of a piston of the pump 6, a chamber on the left side of the pump 6 is connected with a motor 7 through a pipeline, a return spring 8 is arranged on the side wall of the pump, and the auxiliary push plate is reset; the motor 7 is connected with the generator 9 through a power rotating shaft, and the output terminal of the generator 9 is connected with the storage battery through the voltage stabilizing rectifier 5, namely, the current is stored in the storage battery.
The power generation principle is as follows: the carbon fiber rope is tensioned by the swinging piece 3 in the swinging process, the carbon fiber rope further drives the piston of the pump 6 to move towards the left side, the spring is stretched, the power medium flows into the pipeline from the left side cavity, the impeller 12 of the hydraulic motor 7 in the pipeline is further driven to rotate forwards, and the hydraulic motor then drives the generator to generate electricity through the transmission shaft; when no wind and no wave, the swinging part 3 resets, at the moment, the piston moves to the right under the action of the spring, the pipeline is arranged in a vertical state, therefore, the power medium flows back to the left cavity from the pipeline under the action of gravity, the hydraulic motor rotates reversely in the process of flowing back, the generator is driven to generate electricity, and the power medium preferably selects liquid with a lubricating effect.
As shown in fig. 3: in order to save the number of generators and improve the power generation efficiency, on the basis of the preferred embodiment, the rocking members 3 and the pumps 6 are in one-to-one correspondence, the number of the rocking members and the pumps is the same, the rocking members and the pumps are considered as a whole and are divided into M small areas according to the area, and each area is provided with N rocking members 3; because the area is small, each group of N oscillating pieces 3 can be considered to move synchronously, N pumps 6 corresponding to the N oscillating pieces 3 act synchronously, pipelines connected with the N pumps 6 are named as primary pipelines, the end parts of the N primary pipelines are connected with the lower end of the same main pipeline, so that the oil pressures of the N pumps 6 can be combined into a large oil pressure, each main pipeline is provided with a motor 7, and each motor 7 is connected with a generator 9.
The rocking member 3 is at least 30cm, preferably 30cm long, with a carbon fibre rope of 12mm diameter inside.
A positioning module of a wind wave power generation device for a cold sea area comprises:
the wave energy estimation module is used for estimating the wave energy in the presence of ice; the wave energy current density estimation formula in the presence of ice is as follows:
Figure BDA0002416781720000101
wherein: p is wave energy current density, and the unit is KW/m; rho is the density of seawater, and is generally 1.028kg/m3(ii) a k is the wave number, which is equal to
Figure BDA0002416781720000102
Wherein L is the wavelength, TeIs the energy cycle. HsTo include the effective wave height of ice effects, the unit is m. It is reported that as global warming and arctic glaciers decrease year by year, the coexistence of floating ice and waves tends to be normalized. In the Bohai sea area of China, the cold tide and the strong wind frequently occur in winter, the wind is the main driving force for wave formation, and the cold tide and the strong wind weather are accompanied by low temperature, so that the seawater is frozen, and therefore the effective wave height H in the formula (1)sThe effect of ice needs to be taken into account.
A dynamic spectrum balance equation model is adopted for wave calculation, wind is used as a driving force, and wave field distribution at the engineering position of the Bohai and the Bohai sea area is calculated based on the following equation:
Figure BDA0002416781720000103
wherein: UFRIC is the wind friction speed; CDRAG is a wind drag coefficient, and the recommended value is 0.0013; ice concentration is between 0 and 1; WIND10 is the WIND speed at 10m height.
Calculating the air-out friction speed UFRIC according to the formula (2); calculating a JOHNWAP spectrum based on the UFRIC and the gravity acceleration; then, calculating the action density under the current time level according to the frequency corresponding to the input spectrum peak period, further obtaining the zero-order moment ETOT of the wave energy density, and obtaining the effective wave height H considering the ice influence based on the following formulas
Figure BDA0002416781720000104
And according to the estimated value of the wave energy current density, estimating the slope type breakwater built near the Bohai sea to determine the site selection of the power generation slope type breakwater.
A wave climbing prediction module when ice exists; the forecasting formula of the wave climbing height in the presence of ice is as follows:
R＝KΔR1Hs(4)
wherein: r is wave run-up; kΔIs the coefficient of permeability of the slope relative to the structural type of the protective surface of the slope dike; r1Is KΔ＝1，HsWhen the height is 1m, the wave climbs on the smooth slope dike; hsEstimated wave height, H, in front of breakwater to account for ice effectssThe calculation is carried out according to the values in the formulas (1) to (4).
A location prediction module; and determining the positions of the honeycomb structure and the swing power generation device according to the predicted value of the wave climbing height R in the presence of ice. The value of R in this patent includes the effect of ice. In general, the R value fluctuates around the water level. In the case of low water level and low incident wave height, the R value is small, but at high water level the R value may reach the top of the bank, so there is a range of R values. After the range of the wave climbing height is calculated by combining the formulas (1) to (4) with the local water level condition, the power generation device is arranged in the range. When the chloroprene rubber swinging piece is subjected to wave slapping or wind energy, the chloroprene rubber swinging piece can swing in all directions, the push plate is pulled by the internal carbon fiber rope to increase the pressure in the pump, and the power medium is converged to the main pipe by the branch pipeline, so that the motor impeller in the main pipe rotates to drive the generator to generate power. The collected electric energy is stored in the lead-acid battery through the voltage-stabilizing rectifier and provides electric energy for the heating rod, and the heating rod heats the temperature of the seawater near the slope-type breakwater to prevent the nearby seawater from freezing. The temperature controller can sense the temperature to 5 ℃ and keep the temperature unchanged, thereby saving energy and effectively preventing the swinging piece from freezing.
A method for positioning a wind wave power generation device used in a cold sea area; the method comprises the following steps:
s1, wave energy estimation in the presence of ice; the renewable resources of ocean wave energy are usually quantitatively described in terms of wave energy current density, which is estimated using the following formula:
Figure BDA0002416781720000111
wherein: p is wave energy current density, the unit is KW/m, and the wave energy is used for calculating the wave power accumulated in the whole water body from the sea level to the sea bottom surface in the width direction of each meter of wave crest; rho is the density of seawater, and 1.028kg/m is taken3(ii) a k is the number of waves,
Figure BDA0002416781720000121
wherein L is the wavelength corresponding to the effective period and the unit is m; t iseIs the energy period, in units of s, multiplied by the spectral peak period T by 0.9PTo represent; l and TPAll are calculated by a dynamic spectrum balance equation model of SWAN; hsEffective wave height, in m, for ice effects;
s2, calculating the wave field distribution at the engineering position of the Bohai and the Bohai sea area based on the following equation by adopting a dynamic spectrum balance equation model and wind as a driving force according to the wave calculation:
Figure BDA0002416781720000122
wherein: UFRIC is the wind friction speed; CDRAG is the WIND drag coefficient, when WIND speed WIND10 at 10m height >7.5m/s, CDRAG ═ 0.001 (0.8+0.065 WIND 10); when WIND10 is less than or equal to 7.5m/s, the recommended value is 0.0013; ice concentration is between 0 and 1; WIND10 is the WIND speed at 10m height;
calculating the air-out friction speed UFRIC according to the formula (2); calculating a JOHNWAP spectrum based on the UFRIC and the gravity acceleration;
calculating the action density under the current time level according to the frequency corresponding to the input spectrum peak period, and further obtaining a zero-order moment ETOT of the wave energy density; and obtaining an effective wave height H considering the influence of ice based on the following formula (3)s
Figure BDA0002416781720000123
According to the estimated value of the wave energy current density P, the built slope type breakwater on the near bank of the Bohai sea is further estimated, and the site selection of the power generation slope type breakwater is determined;
s3, predicting the wave climbing height when ice exists; the forecasting formula of the wave climbing height in the presence of ice is as follows:
R＝KΔR1Hs(4)
wherein: r is the wave run-up when ice exists; kΔCoefficient of permeability, K, depending on the type of facing structure of the bankΔThe value range is 0-1; when K isΔWhen 1, denotes a smooth and watertight breakwater facing, KΔThe smaller the size, the rougher the breakwater armor surface; r1Is when KΔ＝1，HsWhen the wave length is 1m, the wave rises on the breakwater face which is smooth and impermeable;
and S4, determining the positions of the honeycomb structure and the swing power generation device according to the predicted value of the wave climbing height R when ice exists. The R value is a wave run-up value, which is the height at which the wave runs up the slope on the slope bank, and contains the influence of ice in this patent. In general, the R value fluctuates around the water level. In the case of low water level and low incident wave height, the R value is small, but at high water level the R value may reach the top of the bank, so there is a range of R values. After the range of the wave climbing height is calculated by combining the formulas (1) to (4) with the local water level condition, the power generation device is arranged in the range to ensure that the power generation device can absorb the wave energy.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims (9)

1. A wind wave power generation device for a cold sea area is positioned on the slope surface of a breakwater (1); characterized in that it at least comprises:
the positioning grooves are laid on the slope surface and sequentially spliced into a honeycomb structure (2);
a swinging power generation device (4) arranged in each positioning groove;
each swing power generation device (4) is connected with the storage battery through a voltage stabilizing rectifier (5).
2. The wind wave power generation device for the cold sea area according to claim 1, wherein the swing power generation device (4) comprises a swing member (3), the swing member (3) is installed in a positioning groove through a universal head, and a carbon fiber rope is embedded in the swing member (3); one end of the carbon fiber rope is fixedly connected with the left side of the piston of the pump (6); the left chamber of the pump (6) is connected with the motor (7) through a pipeline, and the right side of the piston of the pump (6) is provided with a return spring (8); the motor (7) is connected with the generator (9) through a power rotating shaft, and an output terminal of the generator (9) is connected with the storage battery through the voltage stabilizing rectifier (5).
3. The wind wave power generation device for the cold sea area according to claim 1 or 2, further comprising a heating rod for preventing the water flow in the positioning groove from freezing, wherein the storage battery is connected to the heating rod.
4. The wind wave power plant for cold sea areas according to claim 2, wherein said rocking member (3) and said pump (6) are each N x M, wherein: n and M are both natural numbers larger than 1; the pipelines comprise N × M primary pipelines and M main pipelines; the swinging pieces (3) are divided into N groups; the lower end of each main pipeline is communicated with the N primary pipelines in the same group, each main pipeline is provided with a motor (7), and each motor (7) is connected with a generator (9).
5. The wind wave power generation device for cold sea areas according to claim 1, wherein the swinging member (3) is a neoprene swinging member.
6. The wind-wave power generation device for cold sea areas according to claim 1, wherein said rocking member (3) is at least 30cm long and said carbon fiber rope has a diameter of 12 mm.
7. The wind wave power generation device for cold sea areas according to claim 1, wherein the storage battery is a lead-acid battery.
8. A method for positioning a wind wave power generation device for a cold sea area according to any one of claims 1 to 6, comprising: the method comprises the following steps:
s1, wave energy estimation in the presence of ice; the renewable resources of ocean wave energy are usually quantitatively described in terms of wave energy current density, which is estimated using the following formula:
Figure FDA0002416781710000021
wherein: p is wave energy current density, the unit is KW/m, and the wave energy is used for calculating the wave power accumulated in the whole water body from the sea level to the sea bottom surface in the width direction of each meter of wave crest; rho is the density of seawater, and 1.028kg/m is taken3(ii) a k is the number of waves,
Figure FDA0002416781710000022
wherein L is the wavelength corresponding to the effective period and the unit is m; t iseIs the energy period, in units of s, multiplied by the spectral peak period T by 0.9PTo represent; l and TPAll are calculated by a dynamic spectrum balance equation model of SWAN; hsEffective wave height, in m, for ice effects;
s2, calculating the wave field distribution at the engineering position of the Bohai and the Bohai sea area based on the following equation by adopting a dynamic spectrum balance equation model and wind as a driving force according to the wave calculation:
Figure FDA0002416781710000023
wherein: UFRIC is the wind friction speed; CDRAG is the WIND drag coefficient, when WIND speed WIND10 at 10m height >7.5m/s, CDRAG ═ 0.001 (0.8+0.065 WIND 10); when WIND10 is less than or equal to 7.5m/s, the recommended value is 0.0013; ice concentration is between 0 and 1; WIND10 is the WIND speed at 10m height;
calculating the air-out friction speed UFRIC according to the formula (2); calculating a JOHNWAP spectrum based on the UFRIC and the gravity acceleration;
calculating the action density under the current time level according to the frequency corresponding to the input spectrum peak period, and further obtaining a zero-order moment ETOT of the wave energy density; and obtaining an effective wave height H considering the influence of ice based on the following formula (3)s
Figure FDA0002416781710000031
According to the estimated value of the wave energy current density P, the built slope type breakwater on the near bank of the Bohai sea is further estimated, and the site selection of the power generation slope type breakwater is determined;
s3, predicting the wave climbing height when ice exists; the forecasting formula of the wave climbing height in the presence of ice is as follows:
R＝KΔR1Hs(4)
wherein: r is the wave run-up when ice exists; kΔCoefficient of permeability, K, depending on the type of facing structure of the bankΔThe value range is 0-1; when K isΔWhen 1, denotes a smooth and watertight breakwater facing, KΔThe smaller the size, the rougher the breakwater armor surface; r1Is when KΔ＝1，HsWhen the wave length is 1m, the wave rises on the breakwater face which is smooth and impermeable;
and S4, determining the positions of the honeycomb structure and the swing power generation device according to the predicted value of the wave climbing height R when ice exists. The R value is a wave run-up value, which is the height at which the wave runs up the slope on the slope bank, and contains the influence of ice in this patent. In general, the R value fluctuates around the water level. In the case of low water level and low incident wave height, the R value is small, but at high water level the R value may reach the top of the bank, so there is a range of R values. After the range of the wave climbing height is calculated by combining the formulas (1) to (4) with the local water level condition, the power generation device is arranged in the range to ensure the wave energy.
9. A positioning module of a wind wave power generation device for a cold sea area based on any one of claims 1 to 6, comprising at least:
the wave energy estimation module is used for estimating the wave energy in the presence of ice; the renewable resources of ocean wave energy are usually quantitatively described in terms of wave energy current density, which is estimated using the following formula:
Figure FDA0002416781710000041
wherein: p is wave energy current density, the unit is KW/m, and the wave energy is used for calculating the wave power accumulated in the whole water body from the sea level to the sea bottom surface in the width direction of each meter of wave crest; rho is the density of seawater, and 1.028kg/m is taken3(ii) a k is the number of waves,
Figure FDA0002416781710000042
wherein L is the wavelength corresponding to the effective period and the unit is m; t iseIs the energy period, in units of s, multiplied by the spectral peak period T by 0.9PTo represent; l and TPAll are calculated by a dynamic spectrum balance equation model of SWAN; hsEffective wave height, in m, for ice effects;
a dynamic spectrum balance equation model is adopted for wave calculation, wind is used as a driving force, and wave field distribution at the engineering position of the Bohai and the Bohai sea area is calculated based on the following equation:
Figure FDA0002416781710000043
wherein: UFRIC is the wind friction speed; CDRAG is the WIND drag coefficient, when WIND speed WIND10 at 10m height >7.5m/s, CDRAG ═ 0.001 (0.8+0.065 WIND 10); when WIND10 is less than or equal to 7.5m/s, the recommended value is 0.0013; ice concentration is between 0 and 1; WIND10 is the WIND speed at 10m height;
calculating the air-out friction speed UFRIC according to the formula (2); calculating a JOHNWAP spectrum based on the UFRIC and the gravity acceleration;
calculating the action density under the current time level according to the frequency corresponding to the input spectrum peak period, and further obtaining a zero-order moment ETOT of the wave energy density; and obtaining an effective wave height H considering the influence of ice based on the following formula (3)s
Figure FDA0002416781710000044
According to the estimated value of the wave energy current density P, the built slope type breakwater on the near bank of the Bohai sea is further estimated, and the site selection of the power generation slope type breakwater is determined;
a wave climbing prediction module when ice exists; the forecasting formula of the wave climbing height in the presence of ice is as follows:
R＝KΔR1Hs(4)
wherein: r is the wave run-up when ice exists; kΔCoefficient of permeability, K, depending on the type of facing structure of the bankΔThe value range is 0-1; when K isΔWhen 1, denotes a smooth and watertight breakwater facing, KΔThe smaller the size, the rougher the breakwater armor surface; r1Is when KΔ＝1，HsWhen the wave length is 1m, the wave rises on the breakwater face which is smooth and impermeable;
a location prediction module; and determining the positions of the honeycomb structure and the swing power generation device according to the predicted value of the wave climbing height R in the presence of ice. The value of R in this patent includes the effect of ice. In general, the R value fluctuates around the water level. In the case of low water level and low incident wave height, the R value is small, but at high water level the R value may reach the top of the bank, so there is a range of R values. After the range of the wave climbing height is calculated by combining the formulas (1) to (4) with the local water level condition, the power generation device is arranged in the range to ensure that the power generation device can absorb the wave energy.
CN202010193575.5A 2020-03-18 2020-03-18 Wind wave power generation device, positioning method and positioning module for cold sea area Pending CN111188719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010193575.5A CN111188719A (en) 2020-03-18 2020-03-18 Wind wave power generation device, positioning method and positioning module for cold sea area

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010193575.5A CN111188719A (en) 2020-03-18 2020-03-18 Wind wave power generation device, positioning method and positioning module for cold sea area

Publications (1)

Publication Number Publication Date
CN111188719A true CN111188719A (en) 2020-05-22

Family

ID=70708639

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010193575.5A Pending CN111188719A (en) 2020-03-18 2020-03-18 Wind wave power generation device, positioning method and positioning module for cold sea area

Country Status (1)

Country Link
CN (1) CN111188719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112163970A (en) * 2020-09-30 2021-01-01 海南电网有限责任公司 Site selection method for wave energy power generation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112163970A (en) * 2020-09-30 2021-01-01 海南电网有限责任公司 Site selection method for wave energy power generation device

Similar Documents

Publication Publication Date Title
DK3256716T3 (en) HYDROPNEUMATIC ENERGY STORAGE SYSTEM
WO2020220634A1 (en) Rectangular box-shaped floating breakwater having wave energy power generation device employing oscillating water column
CN102202962B (en) Offshore wave, wind and solar energy integrated power generating fleet
US8018084B2 (en) Wave powered electrical generator
WO2011009377A1 (en) Wave power generation system
CN101975133A (en) Turbine generating device capable of adjusting blade angle
US9657708B2 (en) Pumped-storage system
CN202510276U (en) Floater push type wave energy power generation device
CN103587654A (en) Ocean wave energy self-powered cyclic detection ecobuoy
CN104153937A (en) Wave energy collecting device adaptable to tide level change
CN111188719A (en) Wind wave power generation device, positioning method and positioning module for cold sea area
WO2016065733A1 (en) Water flow power generating device
CN103527391A (en) Ocean wave power generation system
CN112855418B (en) Array winding rope type double-floating-body wave energy power generation device
CN212027973U (en) Wind wave power generation device for cold sea area
CN104018980A (en) Pile type wave energy capturing device utilizing plurality of floating bodies
CN101943104A (en) Airbag type sea wave power generation
CA2408855A1 (en) Ocean wave energy converter
RU2347939C2 (en) Universal sea power generation plant
RU59744U1 (en) WAVE POWER INSTALLATION
WO2014181354A2 (en) Method for power generation using tidal waves by trapping compressed air produced
RU2778597C1 (en) Marine power supply system for surveillance equipment
US20240200527A1 (en) Underwater ducted hydroelectric power generation system
CN203022959U (en) Chain plate type hydroturbine generating set
WO2012051678A1 (en) Suction-vacuum hydraulic submerged-turbine system and permanent ballast tanks

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination