Gradient gravity energy storage system for abandoned mine well shaft and gangue after mining

Abstract

The invention discloses a gradient gravity energy storage system for an abandoned mine well shaft and gangue after mining, and provides a more economical new energy storage system and secondary utilization system for the abandoned mine well shaft and the gangue after mining. Based on the specific exploitation situation of an abandoned mine well, abandoned mine well shafts are utilized to serve asenergy storage channels; underground parking lots with different elevations are constructed between a primary well and a secondary well; the number of cage conductors are set according to corresponding elevation difference and the number of parking lots; the number of the cage conductors in a channel on one side is equal to the number of the underground parking lots; and the rising and falling elevation differences between the cage conductors are equal to each other all the time. The system comprises energy storage-release channels transformed by an abandoned primary well and an abandoned secondary well; the upper parts of the channels are out of the ground to connect corresponding equipment; the lower parts are connected with various underground parking lots; various channels are connected to the parking lots by utilizing connecting roadways; when energy is stored, a mine vehicle in a lower-position parking lot is lifted to an upper-position parking lot by a lifting system; and when the energy is released, the mine vehicle in the upper-position parking lot is dropped to the lower-position parking lot. Gradient gravity energy storage and release are realized by controlling the loading capacity of the gangue of the mine vehicle and the transferring amount between the cage conductors in a centralized manner by means of a central control chamber; and in addition, buffering springsare arranged between adjacent cage conductors, so that the energy impact caused by accidental fracture of a steel wire rope is reduced. According to the system, the problem about power energy storageof new energy is solved on the basis of comprehensive utilization of the abandoned mine well shaft and the gangue; and transformation reference is provided for the abandoned well after mining and thewell which is about to be pulled out of production capacity.

Description

technical field [0001] The invention relates to a gradient gravity energy storage system for abandoned shaft shafts and gangue after mining, which is a new energy storage technology and a technology for reusing abandoned shaft shafts and gangue after mining. Background technique [0002] The world's new energy is developing very rapidly. In recent years, wind and light energy have rapidly become important renewable energy in my country. While meeting energy demand, they can improve the energy structure and reduce environmental pollution. However, due to the randomness and volatility of this type of intermittent renewable energy, it has a greater impact with time, seasons, and climate changes, and there is an imbalance between this type of energy and power load demand, which will cause grid fluctuations. Therefore, with these The increase in the proportion of energy generation equipment capacity in the grid will seriously affect the stability of the power system, thereby limi...

AI Technical Summary

Problems solved by technology

In addition, for many exploratory wells that have not achieved exploration results and have been blocked, simple wellhead gates and wellhead caps are vulnerable to theft and damage by criminals, causing the blocked oil, gas, and water to seep and flow out of the wellhead, which is very likely to cause environmental pollution. accidents such as pollution

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