A vertical coil heating device

Abstract

The invention relates to heating technology, in particular to a vertical coil heating device, which solves the problems existing in the prior art, such as waste of internal space of a spiral coil, low heating power per unit length of the coil, and the like. The heating device is equipped with a coil, and there are two layers of heating electric furnace wires inside and outside the coil: the inner layer of electric furnace wire and the outer layer of electric furnace wire; the coil is a spiral structure made of stainless steel seamless steel pipe, and the inner layer of electric furnace wire is made of corundum The tube is a one-stage heating electric furnace wire with an inner core, and the outer electric furnace wire is a three-stage heating electric furnace wire. The invention makes full use of the internal space of the spiral coil, improves the heating power per unit length of the coil, and has the characteristics of high-efficiency heating. The heating device is controlled by a programmable controller, which is accurate and reliable. At the same time, when the flow rate of the high-pressure liquid in the spiral coil is slow and the heating of the outer layer is sufficient to meet the heat required for the liquid in the coil to rise, the electric furnace wire for heating the inner layer can be turned off by a manual switch, thus saving energy.

Description

technical field [0001] The invention relates to heating technology, in particular to a vertical coil heating device. Background technique [0002] In order to study the corrosion and stress corrosion behavior of materials under nuclear power conditions, it is necessary to build a high-temperature and high-pressure water circulation loop system to simulate the water chemical conditions of PWR nuclear power plants. The operating principle of the high-temperature and high-pressure water circulation loop system is to pressurize the room temperature solution to a higher pressure level through the high-pressure pump, preheat it through the heat exchanger, and then further heat it to the required high temperature through the heating device, and finally pass it into the autoclave experiment in. The high-temperature and high-pressure liquid coming out of the autoclave passes through the heat exchanger and the condenser successively to reduce its temperature to room temperature, and ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a vertical coil heating device, which solves the problems of the waste of the internal space of the spiral coil and the low heating power per unit coil length in the prior art.

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