A self-expanding ultra-high temperature heater

Abstract

The invention discloses a self-expansion type ultrahigh-temperature heater mounted in a hearth of high-temperature equipment. The self-expansion type ultrahigh-temperature heater comprises at least one heating component, at least one water cooling electrode and at least one support block, wherein the heating components are arranged in the hearth along the gravity direction and freely extend along one direction, the water cooling electrodes are fixed on a furnace of the high-temperature equipment and electrically connected with one ends of the heating components fixedly, and the support blocks are fixed at the bottom of the hearth of the high-temperature equipment and used for supporting the heating components. The heating components are arranged afloat on the support blocks and can freely move on the same. The heating components are directly arranged afloat on the support blocks and thereby freely move on the same, degrees of freedom of thermal expansion and cold shrinkage of the heating components are provided to the greatest extent, and service life of the heater is prolonged.

Description

technical field [0001] The invention belongs to the field of high-temperature vacuum equipment, and in particular relates to a self-expanding ultra-high temperature heater. Background technique [0002] Generally, high-temperature equipment needs to be heated and cooled repeatedly during the production process, resulting in significant thermal expansion and contraction of the internal structure of the furnace. In the heaters of existing high-temperature equipment, they are usually fixed inside the furnace by multi-point support, that is, support points are set on both sides and the top of the heater, so that most or all of the space freedom of the heater is restricted. In the process of heating up or cooling down the equipment, the heat expansion and contraction of the heater will be restricted, resulting in a large thermal stress inside the heater, which will easily cause the heater to deform, and in severe cases, the heater may even be damaged. The service life of the hea...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a self-expanding ultra-high temperature heater, which has a large space for thermal expansion and cold contraction, can effectively cope with variable reaction temperatures, and further improves the service life of the heater to solve the problem of existing vacuum equipment. The technical problem that the heater is easily deformed or damaged

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