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Novel water pumping energy storage device

A new type of pumped energy storage technology, which is applied in the fields of hydroelectric power generation, building types, large-capacity bulk material storage, etc., can solve the problems of restricting the construction and development of pumped storage power stations, and the inability to build upper reservoir energy storage, etc., and achieve site selection Convenience, small footprint, and less wear and tear

Active Publication Date: 2019-06-14
NORTHEAST DIANLI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem that the construction and development of the pumped-storage power station cannot be built because of the limitation of geographical conditions, the present invention conceives a new type of energy storage method according to the working principle of the piston, and designs a A new type of pumped energy storage device with high energy utilization and limited conditions

Method used

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Examples

Experimental program
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Effect test

Embodiment approach

[0030] When the power consumption is low, close the second valve 12 of the water outlet pipe port 10, open the first valve 11 of the water inlet pipe port 9, and the off-peak electric energy drives the hydraulic pump through the motor, and adds the filtered water from the water inlet pipe port 9 to store energy Pool 13, in the energy storage pool 13, the pressurized filtered water lifts the large piston 4 to store potential energy. The large piston 4 is made of reinforced concrete as a whole, and the lower part is made of P10 concrete, which is a low-cost material that is not afraid of high-pressure water corrosion. The piston 4 and the sealing ring are fixedly connected by a rubber gasket, and the piston can still move left and right to a certain extent, which can reduce the damage of the curtain and the impact of the earthquake on the device while waterproofing, and adjust the stored energy through the additional counterweight 2 Size, additional counterweight 2. The weights a...

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Abstract

The invention relates to a novel water pumping energy storage device which comprises a container wall, an additional counterweight, a large piston, an O-shaped piston sealing ring, a waterproof wall,a water inlet pipe end opening, a water outlet pipe end opening, a first valve and a second valve. When the power consumption is low, off-peak electric energy drives a hydraulic pump through a motor,filtered water is added into an energy storage pool from the water inlet pipe end opening, the filtered water lifts the large piston to store potential energy in the energy storage pool, and the stored potential energy is adjusted through the additional counterweight; during peak power consumption, the large piston and the additional counterweight press the water in the energy storage pool out offrom the outlet pipe end opening under the action of gravity, and the pressed water flow drives a water turbine to generate electricity, the potential energy is converted into electric energy, and theproblem that a water pumping energy storage power station cannot be built due to the restriction of geographical conditions is thus solved.

Description

technical field [0001] The invention belongs to the technical field of pumped energy storage power generation, and in particular relates to a novel pumped energy storage device. Background technique [0002] Pumped water storage power generation technology consumes electricity to store water potential energy when electricity consumption is low, and uses water potential energy to generate electricity through water turbines during peak electricity consumption. It has the advantages of large energy storage scale, long storage period, and little environmental pollution. One of the promising large-scale electric energy storage technologies. [0003] The pumped water storage power station has an upper reservoir and a lower reservoir, the upper reservoir is built at a position higher than the lower reservoir, and water pumps and water turbines are respectively installed between the upper reservoir and the lower reservoir. When the power consumption is low, the motor drives the wat...

Claims

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Application Information

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IPC IPC(8): E04H7/18F03B11/00F03B13/06
CPCY02E10/20Y02E60/16
Inventor 华泽嘉刘浩鸣刘择王海旭林忠宣王辛玮
Owner NORTHEAST DIANLI UNIVERSITY
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