Off-peak power storage type water pumping system

Abstract

The invention discloses an off-peak power storage type water pumping system. A dual high-speed shaft automatic conversion device comprises a controller, a limiting switch, a sensor, a high-speed shaft coupler and a water pump high-speed shaft coupler. A motor output shaft is connected with a water pump body connection shaft through the high-speed shaft coupler, the water pump body connection shaft is connected with a rotating shaft of a water pump body through the water pump high-speed shaft coupler and is in transmission connection with one end of a low-speed shaft through a speed reducing device, the other end of the low-speed shaft is connected with a steel wire roller, a steel wire rope is wound on the steel wire roller, and a weight is driven by the steel wire rope to move up and down. The off-peak power storage type water pumping system has the advantages that off-peak electricity at night is stored in a gravitational potential energy manner, the gravitational potential energy is converted into mechanical energy to drive a water pump body to rotate for action after an off-peak period is over, and accordingly energy saving and emission reduction are realized, operating normality of a motor and the water pump body is guaranteed, remarkable energy saving effects are achieved, 5000 trillion of kilowatt hours of electricity is yearly saved for China by an energy storage pump, and energy consumption is substantially reduced.

Description

technical field [0001] The invention belongs to the technical fields of energy saving, energy storage, water supply and drainage, and in particular relates to a low-peak electric energy storage pumping system. Background technique [0002] With the development of my country's national economy, the peak-to-valley difference of the power grid is gradually increasing, and the load rate of the power grid is significantly reduced, which greatly affects the cost of power generation and the safe operation of the power grid. In order to encourage users to shift peaks and fill valleys, the power sector has formulated a peak-valley electricity price policy in conjunction with the local government to separate peak electricity prices from low-valley electricity prices and encourage users to use low-valley electricity. At present, the peak power consumption in the country is low-peak power at night for 6 hours, and the power consumption price is about 1 / 3-1 / 5 of the normal power price. H...

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Problems solved by technology

[0004] Aiming at the problems in the prior art that the electricity bills accounted for by water pumps remain high, resulting in increased overall operating costs or failure to operate, the purpose of the present invention is to provide a low-peak power storage energy pumping system, integrated water pumps and low-peak power The characteristics of low-peak electricity can be effectively converted through mechanical energy storage and energy conversion, saving national energy

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