Combinable split solid block heat accumulator

Abstract

The invention provides a combinable and separable solid particle / block heat storage apparatus which can achieve high temperature, super large scale, low cost and high efficiency heat storage, be suitable for the temperature of 10-1500 DEG C and has the heat storage ability which reaches or exceeds 500GJ-1000GJ heat storage. Solid particles / blocks are used as the heat storage material, a pair of common heat charge pipes and a pair of common heat discharge pipes are adopted, simultaneously the heat charge inlet pipe is connected with the heat discharge outlet pipe, the heat charge outlet pipe is connected with the heat discharge inlet pipe, a plurality of high temperature heat storage devices are connected with the heat charge pipes, a plurality of low temperature heat storage devices are connected with the common heat discharge pipes, and the combinable and separable heat storage and utilization can be achieved through fluid circulation. The heat storage apparatus can be moved to a heat energy area and then utilized.

Description

technical field [0001] The invention relates to utilization of thermal energy, in particular to realizing storage, exchange and utilization of thermal energy by using solid particles. Background technique [0002] The heat accumulator is a device for storing thermal energy, and the existing heat accumulators are steam type and liquid heat accumulators; [0003] In the field of industrial energy conservation, waste heat is recovered and stored, usually using phase change technology for heat storage, and in the low temperature field using ice storage technology for heat storage; [0004] In the field of solar energy, molten salt is used to store heat. Although molten salt can achieve high temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, there are problems with the toxicity, economy, and safety of molten salt. , so the use of molten salt heat storage is limited. [0005] In the field of solar energ...

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Problems solved by technology

[0004] In the field of solar energy, molten salt is used to store heat. Although molten salt can achieve high temperature storage, it needs heat energy to heat it because it needs to be transformed from solid to liquid. At the same time, there are problems with the toxicity, economy, and safety of molten salt. , so the use of molten salt heat storage is limited

[0005] In the field of solar energy, air or other gases are also used for heat storage, but its thermal fusion is small, and large-scale thermal energy storage cannot be realized

[0006] The energy storage power station uses electric energy for storage, especially the electric energy composed of wind power and photovoltaic, because it cannot be stored, it has to be discarded in large quantities, causing a lot of waste

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