Separate water tank preheating type electromagnetic induction high temperature water heating device and its control method

Abstract

The invention discloses a divided water tank preheating type electromagnetic induction high temperature water heating device and a control method thereof. A water tank is divided into a main water region and an auxiliary water region, wherein the tops of the main water region and the auxiliary water region are communicated, the main water region and an electromagnetic induction heater form a preheating and high temperature water delivery system, the auxiliary water region injects water to the main water region with the controllable flow, and after the main water region is filled with water, water overflows to return to the auxiliary water region. According to the whole mechanism, the main region water is preheated preferentially, after the water is preheated to the temperature, the main water region is filled with auxiliary region water with the controllable flow, and the auxiliary region water overflows and is heated under the condition of controlling the water temperature of the mainregion to be unchanged. The main region water can be subjected to electromagnetic heating at any time to reach the required temperature (not larger than 150 DEG C) after reaching the temperature to be delivered. The operation use requirement of preferentially heating and preferentially supplying some water to an oil field is met, and the total efficiency of electromagnetic heating is ensured. After the two water regions are both preheated to the temperature, the total water can be delivered, and the requirement for supplying a large amount of water at a time is met. A digital control system compares parameters in real time, automatically judges the self-heating execution mode and the external instrument execution mode, and is easy to realize and convenient to operate.

Description

technical field [0001] The invention relates to the field of electric heating technology, in particular to a separated water tank preheating type electromagnetic induction high-temperature water heating device and a control method thereof. Background technique [0002] Electromagnetic induction heating technology uses a high-frequency alternating magnetic field generated by a coil wound outside the metal tube to cause the metal tube to generate eddy currents, thereby heating the water flowing through the tube. Compared with traditional resistance heat conduction heating, this kind of internal heating avoids heat transfer and dissipation, and saves energy by at least 30℅. It is an advanced and energy-saving heating technology. [0003] Preheating electromagnetic induction heating is to first heat the water in the water tank through the electromagnetic induction heating tube to the preheating temperature (usually 80°C-95°C), and then flow the preheated warm water through the e...

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Problems solved by technology

This is extremely unsuitable for the conditions of use where part of the high-temperature hot water is required to be supplied in a short period of time after the water tank is filled, and the rest can be accommodated later, such as field operations such as oil fields.

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