A medium frequency heating temperature control device

Abstract

The invention belongs to the technical field of temperature control equipment, and relates to an intermediate frequency heating type temperature control apparatus. A temperature sensor in a control unit sends detected operating temperature of an apparatus to PLC, the PLC controls the heating and cooling of the entire apparatus through a PID mode, and a circulation part circulates a fluid medium in the apparatus at a high speed. A mutually communicated metallic pipes are arranged in an enclosed container in a heating and cooling part. The two ends of the metallic pipes are in butt joint with a fluid medium inlet and a fluid medium outlet and a fluid medium outlet respectively arranged on the two ends of the enclosed container, and the fluid medium outlet and the fluid medium outlet are respectively arranged on the upper left end and the lower right end of the enclosed container. A heat insulating layer is arranged on the internal wall body of the enclosed container, and a heating coil, of which the two ends are electrically connected with the control unit respectively, is arranged outside the enclosed container. The intermediate frequency heating type temperature control apparatus is simple in structure, delicate in design, scientific in principles, excellent in energy-saving effect, low in heat energy loss, high in use efficiency, long in service lifetime, low in safety risk, and wide in application scope.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of temperature control equipment, and specifically relates to an intermediate frequency heating temperature control device, which can be adapted to be connected to various types of equipment. It is an application form utilizing Faraday's law of electromagnetic induction - intermediate frequency heating, through The heat exchange of the fluid medium realizes the temperature control of the equipment. [0003] Background technique: [0004] The mold temperature controller is also called the mold temperature controller. It was originally used in the temperature control industry of injection molds. In a broad sense, it is called temperature control equipment, which is a device that keeps the equipment at a constant temperature. It mainly uses an electric heating tube heating system. After the output heat energy is heated to the set temperature, it will automatically maintain a constant temperature state. ...

AI Technical Summary

Problems solved by technology

[0004] The mold temperature controller is also called the mold temperature controller. It was originally used in the temperature control industry of injection molds. In a broad sense, it is called temperature control equipment, which is a device that keeps the equipment at a constant temperature. It mainly uses an electric heating tube heating system. After the output heat energy is heated to the set temperature, it will automatically maintain a constant temperature state. At the same time, the warm water will be sent into the fast closed circulation pipeline system through the water pump and the conduit, so that the temperature of the heated equipment can be raised rapidly and achieve a constant temperature effect; due to the core element of the heating device It is an electric heating tube. The device is composed of a metal tube, a spiral resistance wire, crystalline magnesium oxide powder, etc. The stainless steel seamless tube is evenly distributed with high-temperature resistance wires, and the gap is filled with crystals with good thermal conductivity and insulation properties. Magnesium oxide powder, when a current passes through the high-temperature resistance wire, the heat generated diffuses to the surface of the metal tube through the magnesium oxide powder, and then transfers to the liquid to achieve the purpose of heating; practice has found that the above-mentioned heating device has the following defects: ( 1) The electric heating tube is directly in contact with the liquid, and there is a hidden danger of "leakage"; (2) The thermal resistance of the thermal insulation magnesium powder is large, the electric heating wire is easily oxidized and damaged, and needs to be replaced regularly, and the replacement is difficult and the maintenance cost is high; (3) Electric heating The number of tubes is large, the failure rate is high, and the structure is complex; (4) the heat loss is large during the heat conduction process, the use efficiency is low, and the waste is serious

At present, the application of intermediate frequency heating seen in the prior art includes intermediate frequency induction heating power supply, intermediate frequency heating furnace and intermediate frequency circuit, etc., such as the steel pipe preheating device disclosed in Chinese patent 201420522734.1, and a continuous forging heating system disclosed in Chinese patent 201420640662.0 The production line, an automatic preheating device for gearbox gears and other devices or equipment disclosed in Chinese patent 201420536708.4 all use intermediate frequency heating furnaces or heating systems, etc., and there is no use of intermediate frequency heating principles in temperature control devices. Therefore, the inventor applied the principle of intermediate frequency heating to temperature control equipment for the first time, which better solved the technical problems of low safety, short life, slow heating speed, low efficiency, and large energy consumption in traditional temperature control devices. The designed intermediate frequency heating temperature control device has the advantages of simple structure, remarkable energy saving effect, long service life, high safety factor, etc., and has good application prospects and market value

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