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Near-shore wave energy generating system and method based on hydraulic ram pumps

A technology of power generation system and water hammer pump, which is applied in the field of offshore wave energy power generation system, can solve the problems of low efficiency of capture, collection and conversion, and low utilization efficiency of nearshore wave energy, so as to solve the problem of instability and improve energy efficiency. The effect of high conversion efficiency and energy conversion efficiency

Active Publication Date: 2017-10-03
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under the current technical level, the capture, collection and conversion efficiency of unstable energy flow is very low, which leads to the low utilization efficiency of nearshore wave energy

Method used

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  • Near-shore wave energy generating system and method based on hydraulic ram pumps
  • Near-shore wave energy generating system and method based on hydraulic ram pumps
  • Near-shore wave energy generating system and method based on hydraulic ram pumps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment is a near-shore wave energy power generation system based on a water hammer pump, such as figure 1 , 2 shown. This embodiment includes: a concentrated energy reservoir 1 for collecting wave energy, in which a plurality of water level difference water control devices 2 are arranged, and the power water pipes of the water level difference water control devices and their respective water hammer pumps 3 301 connection, the lift pipe of the water hammer pump is connected to the high-level pool 4, the output pipe 401 of the high-level pool is connected to the water turbine 5, the water turbine is connected to the generator 6 through a connecting shaft, and the water hammer pump The horizontal height of the drain valve 302 is lower than the height of the low tide water level 7.

[0026] The energy-concentrating reservoir is a device for collecting wave energy, and can have various forms, such as: a reservoir with an inclined slope. That is to use the inclin...

Embodiment 2

[0036] This embodiment is an improvement of the first embodiment, and it is a refinement of the first embodiment about the energy-gathering reservoir. The energy-gathering reservoir described in this embodiment includes: an inclined wave-facing surface 101, behind which is a multi-layer reservoir 102, and a wave inlet 103 is provided on the wave-facing surface of each layer of reservoirs, such as image 3 shown.

[0037] Energy-concentrating reservoirs are used to collect ocean wave energy and store it in the form of low-head potential energy. The concentrated energy reservoir can be multi-layered, image 3 Shown in is a two-story energy-concentrating reservoir, which is composed of an upper reservoir and a lower reservoir, and the height of each layer is 1.5~2.0m; θ . image 3 middle θ It is a 45° slope surface, which is convenient for waves to climb and enter. When the wave power is high, the wave has a strong climbing ability and a high climbing height, and can enter...

Embodiment 3

[0039] This embodiment is an improvement of the above embodiment, and is a refinement of the water level difference control device of the above embodiment. The water level difference water control device described in this embodiment includes a standpipe 201 passing through multi-layer reservoirs, the top of the standpipe is connected to the uppermost reservoir, and the rest of the reservoirs on each floor are provided with corresponding check valves 202 for the standpipe. The check valve is opened one-way into the standpipe, such as image 3 shown.

[0040] The water level difference water control device is composed of a standpipe and a check valve connecting the water tanks of each layer and the power pipe of the water hammer pump. The section shape of the standpipe can be circular, square, rectangular or regular polygon, etc. One or more check valves are arranged in between, and the check valves can be swing type or other forms of check valves. The check valve is installed o...

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Abstract

The invention relates to a near-shore wave energy generating system and method based on hydraulic ram pumps. The near-shore wave energy generating system based on the hydraulic ram pumps comprises an energy gathering reservoir which collects wave energy. A plurality of water level difference water controlling devices are arranged in the energy gathering reservoir, and each water level difference water controlling device is connected with a power water pipe of the corresponding hydraulic ram pump; a lifting pipe of each hydraulic ram pump is connected with a high level pool, and an outlet pipe of the high level pool is connected with a turbine; the turbine is connected with an electric generator through a connecting shaft, and a water discharging valve of each hydraulic ram pump is lower than the height of a low tide water level. By adopting a combining method of the energy gathering reservoir and the hydraulic ram pumps, stable power generating is realized by generated stable high level water energy, and the problems of high equipment technology requirements and low efficiency of direct developing and utilizing of unstable energy flow of the existing wave energy generating technology are solved. Energy conversion efficiency of the overall wave energy generating system is improved due to the fact that the energy conversion efficiency of the hydraulic ramp pumps is high. The near-shore wave energy electrical power generating system based on the hydraulic ramp pumps is simple in structure, fewer in moving part, safe and reliable, low in failure rate, and low in constructing and using cost due to the simple structure.

Description

technical field [0001] The present invention relates to a nearshore wave energy power generation system and method based on a water hammer pump, which is an energy conversion system and method, a system and method for generating electricity using wave energy, and a clean and environmentally friendly new energy system and method. Background technique [0002] At present, the nearshore wave energy generation methods and technologies mainly include oscillating buoy type, oscillating water column type, and over-wave type. What they have in common is that they directly use the low-head potential energy resources contained in wave energy to drive the turbine to rotate and drive the motor to generate electricity. Relevant research also focuses on the collection of low-head ocean wave energy, the development of high-efficiency turbomachinery, and the development of motors for unsteady energy flow. In fact, the energy flow of low-head ocean wave energy varies with factors such as w...

Claims

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Application Information

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IPC IPC(8): F03B13/06F03B13/14
CPCF03B13/06F03B13/141Y02E10/20Y02E10/30Y02E60/16
Inventor 杨开林刘之平李甲振郭新蕾王涛付辉郭永鑫黄伟马慧敏李仟王庆明
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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