Energy storage device with heat recovery and conversion functions and energy storage method

Abstract

The invention discloses an energy storage device with heat recovery and conversion functions, and belongs to the technical field of energy recovery. The device comprises a waste heat inlet pipe, an energy storage module and an energy conversion module, the energy storage module comprises an energy storage tank, the energy conversion module comprises an energy conversion tank, a heat preservation layer, a secondary heat exchange cavity and a water storage cavity are sequentially arranged in the energy storage tank from outside to inside, and a set of electric heating rods are fixedly installed in the water storage cavity. An air filtering assembly, a storage battery and a pump body are fixedly installed on the peripheral side face of the energy storage tank, one end of a power supply port of the storage battery is electrically connected with the electric heating rods through wires, and a secondary hot air inlet pipe, a secondary hot air discharging pipe, a liquid inlet pipe and a liquid discharging pipe are fixedly installed on the peripheral side face of the energy storage tank respectively. Through the design of the energy storage module and the energy conversion module, the device can efficiently achieve the waste heat recovery and reutilization process of a boiler flue gas, and during work, the energy storage module and the energy conversion module can convert heat in waste heat into hot water energy and electric energy through a multi-stage heat exchange structure.

Description

technical field [0001] The invention belongs to the technical field of energy recovery, and in particular relates to an energy storage device with heat recovery and conversion functions. Background technique [0002] The hot water or steam generated in the boiler can directly provide the required heat energy for industrial production and people's life, and can also be converted into mechanical energy through a steam power device, or converted into electrical energy through a generator. [0003] Common boilers need to use coal as fuel during operation. However, the flue gas produced by coal combustion is often allowed to be discharged into the atmosphere, causing inestimable pollution to the environment, and because the flue gas produced after combustion has its own A large amount of heat, direct discharge will lead to waste of heat energy resources, so it is necessary to design a boiler heat recovery device to solve this problem, although there have been some recovery equipm...

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Problems solved by technology

[0003] Common boilers need to use coal as fuel during operation. However, the flue gas produced by coal combustion is often allowed to be discharged into the atmosphere, causing inestimable pollution to the environment, and because the flue gas itself has A large amount of heat, direct discharge will lead to waste of heat energy resources, so it is necessary to design a boiler heat recovery device to solve this problem, although there have been some recovery equipment for boiler waste heat on the market, but the existing The equipment generally has the problem of low conversion efficiency

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