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Low heat loss thermal field system of kyo raw furnace

A kyotoba kiln and heat technology, which is applied in the field of thermal field insulation cover system, can solve the problems of large power consumption and large heat loss

Inactive Publication Date: 2016-08-17
BEIJING ZHIGUANG BOYUAN SCI & TECH
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] In order to solve the technical problems of large power consumption and heat loss in the existing kyo-raw furnace, the patent of the present invention provides a heat preservation thermal field system, which can reflect most of the radiant heat in the kyo-raw furnace and minimize the heat loss. save energy

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  • Low heat loss thermal field system of kyo raw furnace
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  • Low heat loss thermal field system of kyo raw furnace

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Embodiment Construction

[0011] figure 2 Among them, the outermost layer and the innermost layer of the insulation cylinder are both molybdenum cylinders, and two molybdenum vacuum chambers are nested between them. Because high-temperature volatiles are easily produced in the Kyo Raw Furnace, the molybdenum insulation layer is easily polluted by volatiles. Using a molybdenum vacuum insulation cylinder can not only reduce the number of contaminated molybdenum layers, but also play a role in heat insulation. The inside of each layer of molybdenum is highly polished so that most of the radiant heat is reflected back. During the whole growth process of the crystal in a vacuum environment, the heat is transferred to the molybdenum cylinder through thermal radiation. Under the heat insulation effect of the highly polished molybdenum surface and the vacuum cylinder, the heat is reflected to the greatest extent, reducing the heat exchange of cooling water cool down.

[0012] The thermal field system of the...

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Abstract

The invention provides a heat-preservation thermal field system which enables reflection of radiant heat in a kyropoulos furnace, minimizes heat loss, and saves energy consumption. Two nested vacuum heat-preservation cylinders are used between two molybdenum heat-preservation cylinders, which prevents surface contamination of the heat-preservation cylinders, and realizes high polishing of the inner surfaces of the outer layers of the vacuum cylinders. When heat is transferred to the outer cylinder, heat radiation is highly reflected by the highly-polished surface of the inner side of the outer cylinder, and thus the purpose of heat insulation is reached. The layer number of the heat-preservation cylinder is decreased to 6 from original 9, which reduces a great portion of molybdenum metal loss, and saves metal resources. Kyropoulos furnaces with the thermal field system of the invention have better heat preservation effect and are more energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to a heat field heat preservation cover system of a kyotoba furnace, especially capable of reducing heat loss and improving heat preservation performance. Background technique [0002] Sapphire is a very important crystal material, which has excellent optical and mechanical properties and is widely used. As early as 1960, sapphire crystal was used as a military armor material due to its high hardness and high toughness. Subsequently, sapphire became the most common military window material due to its high transmittance in the mid-infrared band. In recent years, with the rapid development of the LED industry, the demand for sapphire crystals as a necessary substrate material for LED epitaxial chips is increasing, which has aroused great attention to the growth method of large-size sapphire crystals. [0003] The "seed crystal" mentioned in this article refers to a good-quality sapphire single crystal prepared before crystal growt...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B17/00C30B29/20
Inventor 丁雨憧马兆远
Owner BEIJING ZHIGUANG BOYUAN SCI & TECH
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