Electric heating heat-conduction oil heat storage system

Abstract

The invention discloses an electric heating heat-conduction oil heat storage system. The electric heating heat-conduction oil heat storage system comprises an electric heating heat-conduction oil furnace (10), a heat-conduction oil heat storage device (20), an oil-gas separator (30) and an expansion tank (40) which are sequentially connected, the electric heating heat-conduction oil furnace (10) can heat heat-conduction oil, and the heat-conduction oil in the electric heating heat-conduction oil furnace (10) can enter the heat-conduction oil heat storage device (20). Heat-conduction oil in theexpansion tank (40) can enter the heat-conduction oil heat storage device (20), the expansion tank (40) is located above the heat-conduction oil heat storage device (20), and the heat-conduction oilheat storage device (20) is connected with a hot oil supply user pipeline (61) and a user cold oil return pipeline (62). According to the electric heating heat-conduction oil heat storage system, theheat-conduction oil is used as a heat storage medium, electric energy is used as a heat source, the electric heating heat-conduction oil furnace is used for replacing a conventional fuel combustion heat-conduction oil furnace, and pollutant emission is avoided.

Description

technical field [0001] The invention relates to an electric heating heat-conducting oil heat storage system. Background technique [0002] The traditional heating method mainly uses fuel combustion to obtain heat energy. Fuel combustion will produce a large amount of pollutants. With the country's emphasis on environmental protection, the requirements for emission indicators are becoming more and more stringent, and the cost of pollutant treatment is gradually increasing. Manufacturing companies are increasingly tending to for easily available, clean and efficient electricity. [0003] Compared with the fuel combustion heating system, electric heating is simpler. For heating conditions with intermittent heating or a large range of heat load changes, electric heating equipment directly heats a medium with a larger volume (such as: gas, steam, etc.) will cause the equipment to burn out. damage or shortened lifespan. As a heat carrier, heat transfer oil has the advantages of ...

AI Technical Summary

Problems solved by technology

For intermittent or variable load operation conditions, the three heat-consuming equipment affect each other, and the heating parameters cannot be guaranteed

In addition, due to the inconsistent resistance loss of the pipeline systems of the three heat-consuming equipment, the resistance loss is relatively large after the oil return end equalizes the pressure

[0005] Using heat conduction oil as the heat carrier and then using the heat pipe heat exchanger to indirectly convert electric energy into thermal energy for cold air heating, the system increases the number of heat exchange stages, not only the heat exchange efficiency is low, but also the system equipment structure is complicated

The heating electrode is installed in the heat storage tank, and the hot and cold oil is mixed by means of agitator, which cannot meet the requirement of a flow rate of more than 1.5m / s for the heat transfer oil on the electrode surface.

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