Electric heating energy-storage recycling system

Abstract

The invention relates to an electric heating energy-storage recycling system which belongs to the technical field of energy-accumulation energy-saving facilities. The system comprises a heat storage groove and an electric heater, wherein the electric heater comprises a container body, one end of the container body is provided with a heat exchange medium inlet, the other end is provided with a heatexchange medium outlet, and an electric heating element which is externally connected with a power supply is arranged in the container body; the heat storage groove is provided with a first inlet, asecond inlet, a first outlet and a second outlet; the heat exchange medium outlet of the container body is communicated with the first inlet of the heat storage groove and the first outlet of the heatstorage groove is connected with the heat exchange medium inlet of the container body, thereby forming a first circulation loop which is connected with a first circulation pump in series; and the second outlet of the heat storage groove is externally connected with an inlet of a user system and an outlet of the user system is connected with the second inlet of the heat storage groove, thereby forming a second circulation loop which is connected with a second circulation pump in series. The invention is beneficial to the balance of an electric network, can reduce the cost for enterprises and is beneficial to energy saving and discharge reduction.

Description

technical field [0001] The invention relates to an energy storage recycling system, in particular to an electric heating energy storage recycling system, which belongs to the technical field of energy storage and energy saving facilities. Background technique [0002] According to the applicant's understanding, 80% of the current enterprises operate in one shift (big day shift), and there are very few enterprises operating in three shifts. , The power generated by the power generation equipment is not utilized, resulting in a waste of energy. Although some power stations have energy storage devices, they cannot store a large amount of excess electricity, in peak power use when . [0003] The search found that the Chinese utility model patent with the application number of 02243249.3 discloses a thermal storage electric boiler, an electric heater is installed in the hot water storage tank, and the water level control between the upper and lower parts of the hot water stor...

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Problems solved by technology

[0004] This prior art is only suitable for using water as a heat storage medium, and for industrial applications, there are the following disadvantages: 1) the energy storage temperature of water is relatively low, and the energy storage capacity is small; 2) if the water temperature is increased (for example, to The temperature of the heat transfer oil is 350°C), the pressure of the water boiler will reach 22MPa, and the water consumption is large, and a high-pressure water supply system needs to be added. At this time, the manufacturing cost is extremely expensive and it is difficult to realize

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