A method for efficient heat exchange of a fanless solid heat storage electric boiler

Abstract

The invention discloses a method for efficient heat exchange of a fanless solid thermal storage electric boiler. The return water in the heating system of the solid thermal storage electric boiler is introduced into the interior of the solid thermal storage electric boiler through a water inlet pipe, and after entering the interior, it is drained by the lower header. The return water in the water inlet pipe is evenly dispersed, and then directly contacts the heat storage body through the thin branch pipe for sufficient and efficient heat exchange, so that the temperature of the final return water rises. The heated supply water is mixed through the upper header, and after mixing, enters the solid heat storage electric boiler heating system through the outlet pipe of the solid heat storage electric boiler for heat supply. The invention realizes the sufficient heat exchange between the return water in the heating system and the solid heat storage electric boiler directly, improves the heat exchange efficiency of the solid heat storage electric boiler, controls the structure of the internal pipeline, controls the heat exchange, and ensures that the outlet water temperature reaches The set value avoids the occurrence of vaporization and overpressure, and achieves the goals of high benefit, low cost, efficient and convenient construction, and safety.

Description

technical field [0001] The invention belongs to the field of heat supply, in particular to a method for efficient heat exchange of a fanless solid heat storage electric boiler. Background technique [0002] The emergence of solid heat storage electric boilers can make full use of the low-peak electricity at night to convert electric energy into heat energy and store it, and then release the stored heat during the peak power period, which largely avoids the peak period of electricity consumption during the day. On the one hand, it alleviates the problem of power shortage during peak power periods, and has a significant effect on power shaving and valley filling. It is a very effective means to make full use of the power grid's low valley power, increase the effective supply of power, and increase the load rate of the power grid. At present, the traditional solid heat storage electric boilers in China mainly use magnesia bricks to store heat, use air as the heat energy transmi...

AI Technical Summary

Problems solved by technology

In this way, the air volume of the fan is required to meet the requirements, and the power of the fan is proportional to the air volume, so it is necessary to equip a large-power frequency conversion fan, resulting in high transportation costs

Moreover, the greater the air volume of the fan, the lower the efficiency of the same fan, which will eventually reduce the heat transfer efficiency of the solid heat storage electric boiler

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