Industrial steam supply coal-fired power plant and electrode boiler peak regulation combination comprehensive system

Abstract

The invention discloses an industrial steam supply coal-fired power plant and electrode boiler peak regulation combination comprehensive system. The comprehensive system comprises a 220kV high-voltagebus, a circuit breaker, a peak regulation facility transformer, a current transformer and a peak regulation facility high-voltage bus which are connected in sequence. A feed water booster pump, an electrode steam boiler, an electric steam supercharger, a high-voltage standby power supply and a low-voltage transformer are connected with the peak regulation facility high-voltage bus. The feed waterbooster pump, the electrode steam boiler and the electric steam booster are connected with a steam pipe through a water pipe. And a low-voltage PC section is connected with the low-voltage transformer. The system is simple and flexible in operation, and peak regulation can be rapidly put into according to a power grid requirement. A peak regulation facility is small in occupied area and small ininfluence on a power plant space. When an unit participates in power grid peak regulation, a power generation capacity of a generator can be consumed to participate in deep peak regulation. When the unit is operated in an ultralow load state, industrial steam can still be supplied to the outside world. .

Description

technical field [0001] The invention relates to electric power equipment, in particular to a comprehensive system for peak regulation of coal-fired power plants for industrial steam supply combined with electrode boilers. Background technique [0002] At present, my country's new energy power generation is developing rapidly, while coal power has excess capacity. When the proportion of new energy sources in the grid gradually expands, the demand for peak-shaving power sources also gradually increases. Compared with new energy and other power sources, coal power has better peak-shaving performance. For countries that use coal as their primary energy source, highly regulated coal power plants have become the most realistic and feasible option. [0003] Since coal-fired power units undertake the functions of deep peak-shaving and backup of rapidly growing non-fossil energy power generation, thermal power units, especially coal-fired power units, will continue to operate at lo...

AI Technical Summary

Problems solved by technology

However, when coal-fired units operate at reduced loads, there will be low industrial steam extraction volume and low extraction pressure, which cannot meet the requirements of users, resulting in the inability of power plants to participate in deep peak shaving of the power grid.

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