Multifunctional efficient tube type heating device

Abstract

A multifunctional efficient tube type heating device belongs to the field of efficient multifunctional resistance furnaces. A combustion chamber (7) is arranged between an N (north) pole and an S (south) pole of an adjustable magnetic field (1), an electric furnace heating wire (11) is wound outside the combustion chamber (7), a ring-shaped condenser pipe (5) is arranged outside the electric furnace heating wire (11), a water inlet (16) is arranged above one end of the condenser pipe (5), a water outlet (17) is arranged below the other end of the condenser pipe (5), a fire-resistant heat insulating layer (2) is filled between the condenser pipe (5) and a furnace wall (13), and a temperature control thermocouple (3) is inserted into the fire-resistant heat insulating layer (2) and connected with a temperature numerical control intelligent instrument (9); one end of the temperature numerical control intelligent instrument (9) is connected with the electric furnace heating wire (11) through a voltage regulation device; the other end of the temperature numerical control intelligent instrument (9) is connected with an external power supply. The multifunctional efficient tube type heating device is efficient, energy-saving, accurate and portable, and can meet multiple functional requirements and obtain materials with unique structures.

Description

technical field [0001] The invention belongs to the field of high-efficiency and multi-functional resistance furnaces, and specifically relates to heating that can meet the requirements of controllable external magnetic fields, which can meet the requirements of different heating atmospheres, precise temperature control, adjustable heating and cooling rates, and can be used normally at 220V or 380V. device. Background technique [0002] Resistance furnaces are widely used in heat treatment production of various metal materials, such as quenching, annealing, normalizing, tempering and chemical heat treatment, etc., and are currently the most widely used heat treatment heating equipment at home and abroad. In order to meet the requirements of different heating conditions, there are currently various forms of resistance furnaces. Tube resistance furnaces mainly include shells, furnaces, heating elements, controllers, furnace tubes, and sealing covers. [0003] The heating elem...

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Problems solved by technology

At present, in the face of major universities and research institutes, the heat treatment process of some objects needs to be carried out under the action of an external magnetic field, so the magnetic iron-chromium-aluminum alloy electric furnace wire will have a shielding effect on the external magnetic field, so it is not suitable for such experiments. , and the non-magnetic nickel-chromium alloy electric furnace wire has a low resistivity. If the size of the resistance furnace is small and the resistance wire wound is short, the current of the entire equipment circuit will be overloaded under the normal voltage (220V). In addition, for In the heating process of small objects, if a larger size resistance furnace is used, it is a waste of energy. Moreover, the larger the size of the tube furnace, the larger the error range of the furnace temperature measurement system, which cannot meet the requirements for some small size. Sample requirements that require precise temperature control;

[0004] In the design of a traditional resistance furnace, a magnetic field will be generated inside the furnace chamber during the electrification process of the annularly wound resistance wire, which will also cause interference to the external magnetic field; in addition, the heating atmosphere of the traditional tube furnace is difficult to control; for some For heat treatment objects that require a faster cooling rate, the cooling rate of the traditional tube furnace is generally small, and the cooling process is long

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