Valley electricity application control device and method based on phase change energy storage

Abstract

The invention provides a valley electricity application control device and method based on phase change energy storage. More than one heat storage floor is arranged in a heat supply area, and phase change heat storage bricks and carbon fiber heating modules in the heat storage floors are arranged to be separable and combinable. A temperature master control device determines the accurate heat storage time according to infrared data, pressure data, video data and other data in the heat supply area, the phase change heat storage bricks and the carbon fiber heating modules are separated after heat storage is finished, heat storage is stopped, accurate control over the heat storage time is achieved, and the power consumption in the off-peak period of electricity utilization is reduced. In the peak period of power utilization, heat stored by the heat storage floors is used for supplying heat, the temperature master control device judges whether the heat supply area is a vacant area or an active area, and after heat storage time or heat storage capacity is reached in the vacant area, the phase change heat storage bricks and the carbon fiber heating modules are separated, heat storage is stopped, heat consumption is reduced, heat storage time is shortened, accurate control and distribution of heat storage and heat supply electric power are achieved, and electric energy is further saved.

Description

technical field [0001] The invention relates to a control device and method for off-peak power application based on phase-change energy storage, in particular to a control floor for off-peak power application based on phase-change energy storage and a control method thereof, belonging to the technical field of heating power configuration and control. Background technique [0002] Phase-change thermal storage materials use the heat that occurs when a substance undergoes a phase change, such as solidification / melting, to store and utilize heat. Phase change heat storage materials have high heat storage density and can release a large amount of heat at a constant temperature through phase change. The phase change regenerative carbon fiber heating device uses carbon fiber heating cables for heating, and at the same time uses the low-cost electric energy during the low-valley period of the power grid from 23:00 at night to 7:00 the next day, and uses carbon fiber heating cables w...

AI Technical Summary

Problems solved by technology

[0003] However, the phase change heat storage component of the existing phase change heat storage carbon fiber heating device is always combined with the carbon fiber heating cable. When the carbon fiber heating cable is used for energization and heating, part of the heat needs to be transferred to the phase change heat storage module. , which leads to the inaccurate control of the heat stored in the phase change heat storage module. When heat storage is performed at night, more electric energy will be consumed to maximize the heat stored in the phase change heat storage module.

At the same time, during the peak hours of electricity consumption, when the carbon fiber heating cable cuts off the power supply and stops heating, the phase change heat storage component will continuously release the stored heat. For vacant rooms, a large amount of heat will be wasted and the heat storage consumption will be increased. power, increased cost

[0004] For example, the existing patent ZL 201620261852.0 discloses a double-ended air source heat pump system with a phase-change heat storage material floor heating module. Appropriate range, but the heat storage material will consume more electric energy for heat storage, and more heat will be wasted for vacant rooms or areas with less family members' activities, which will further increase power consumption and increase heating costs

[0005] In addition, the existing patent ZL201210420234.2 discloses an improved floor heating module structure, the heat pipe layer and the heat storage layer are also always connected together for heat conduction, and the heat pipe will always transfer part of the heat during the heating process To the heat storage layer, precise heating cannot be performed for vacant rooms or resident rooms, which increases power consumption and increases heating costs in winter

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