Double-layer clean energy and pulverized coal coupled peak shaving pulverized coal boiler

Abstract

The invention discloses a double-layer clean energy and pulverized coal coupled peak shaving pulverized coal boiler, and belongs to the technical field of boiler transformation. The invention aims tosolve the problems that an existing peak shaving boiler adopts a single coupling mode, the fault tolerance is poor, and the structure of the existing peak shaving boiler can cause energy waste. The peak shaving pulverized coal boiler comprises a pulverized coal boiler, a trough type photo-thermal heat collector set, a high-temperature potassium hydroxide molten alkali storage tank, a low-temperature alkali storage tank, a hydrogen energy storage hydrogen-oxygen fuel cell unit, a molten alkali heat energy storage trough type photo-thermal unit and a superheater, and the hydrogen energy storagehydrogen-oxygen fuel cell unit carries out power grid connection coupling peak regulation on the pulverized coal boiler; the molten alkali heat energy storage tank type photo-thermal unit performs high-temperature steam coupling peak regulation on the pulverized coal boiler, and the double-layer coupling structure can perform peak regulation on the pulverized coal boiler at the same time; and evenif one of the two units fails, the other clean energy source can still independently operate to play a role in regulating the peak of the pulverized coal boiler. The peak shaving pulverized coal boiler can be used for peak regulation transformation of the pulverized coal boiler.

Description

technical field [0001] The invention relates to a peak-shaving pulverized coal boiler coupled with double-layer clean energy and pulverized coal, and belongs to the technical field of boiler transformation. Background technique [0002] Existing conventional coupling boilers use a single coupling form of clean energy and pulverized coal, and boiler peak regulation is often restricted by the supply side of clean energy. For example, insufficient supply of light, heat and heat molten salt caused by lack of light at night, or poor supply of biomass gas caused by non-straw harvesting seasons; when there is a system failure in any structure, the boiler coupling will fail and peak regulation will not be possible. [0003] In addition, the existing conventional coupling boilers cannot perform flexible energy recovery and release, and they do not have a flexible energy storage and discharge structure, resulting in energy waste and insufficient and untimely peak shaving. Contents o...

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Problems solved by technology

[0004] The present invention aims to solve the problem that the existing peak-shaving boiler adopts a single coupling form, has poor fault tolerance, and its structure will cause energy waste, and provides a peak-shaving pulverized coal boiler with double-layer clean energy coupled with pulverized coal

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