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Large workpiece heating furnace

A technology for large workpieces and heating furnaces, which is applied in electric furnace heating, maintenance of heating chambers, lighting and heating equipment, etc. It can solve the problems of uneven heating temperature and large temperature difference of workpieces, and achieve high workpiece yield and uniform heating effect

Inactive Publication Date: 2020-08-18
BEIJING RES INST OF MECHANICAL&ELECTRICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of this, the main purpose of the present invention is to provide a large workpiece heating furnace to solve the problem of large temperature difference in the furnace and uneven workpiece heating temperature

Method used

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  • Large workpiece heating furnace
  • Large workpiece heating furnace
  • Large workpiece heating furnace

Examples

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Embodiment Construction

[0033] Such as figure 1 , 2 The shown heating furnace is used for heat treatment of large aluminum alloy rings, which includes a cylindrical furnace body 1, the furnace body 1 includes a furnace roof and a furnace door assembly arranged at the furnace bottom;

[0034] The furnace body 1 includes the furnace shell and insulation materials. The furnace shell is a cylindrical structure welded by steel plate and section steel. The furnace lining is a high-purity refractory fiber module, which reduces the heat loss during the working process of the heating furnace and ensures the temperature of the furnace body.

[0035] The furnace door assembly 3 and the furnace door moving track 4 are arranged at the bottom of the furnace body 1, and the furnace door assembly 3 includes a furnace door that splits in two, and a furnace door opening and closing structure that controls the opening and closing of the furnace door. During work, the furnace door opening and closing structure control...

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Abstract

The invention discloses a large workpiece heating furnace which comprises multiple circulating fans. An air outlet at the furnace top is arranged to face the inner side of a furnace body. A gas circulating flow guide system is arranged between the furnace body and an inner hearth and comprises multiple arc flow guide plates, one end of each arc flow guide plate is arranged in an air outlet of thecorresponding circulating fan, and the other ends of the arc flow guide plates stretch out of the air outlets to be vertically arranged at intervals. The air outlets are divided by the arc flow guideplates into multiple branch air outlets, and the branch air outlets gradually become winder from the air outlet sides to the outside. Vertical first straight flow guide plates and second straight flowguide plates are connected with the two sides of the air outlets of the circulating fans respectively and meanwhile are connected with the inner side face of the furnace body and the outer side faceof the inner hearth, and multiple vertical air flues are formed by the inner side face of the furnace body, the outer side face of the inner hearth, the first straight flow guide plates and the secondstraight flow guide plates. Through the gas circulating flow guide system, gas in the furnace body is heated evenly, so that the temperature of gas entering the inner hearth is consistent, and workpieces are heated evenly.

Description

technical field [0001] The invention belongs to the technical field of heat treatment machinery and equipment, in particular to a large workpiece heating furnace. Background technique [0002] Due to the special service environment of the workpiece in my country's aerospace field, the requirements for the structure performance and processing dimensional accuracy of the workpiece are relatively high. [0003] The microstructure and properties of large aluminum alloy rings for aerospace use are high, and the heat treatment process requires the use of large-scale heat treatment furnaces with fast heating speed, high temperature control accuracy, and high furnace temperature uniformity. Traditional heat treatment furnaces for large-scale rings use a single fan circulation, and the gas circulation capacity in the furnace is poor, resulting in a large temperature difference in the furnace; the temperature accuracy of the equipment is low, and the temperature uniformity decreases s...

Claims

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Application Information

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IPC IPC(8): F27B17/00F27D19/00F27D1/18F27D11/02F27D7/04
CPCF27B17/00F27D1/1858F27D7/04F27D11/02F27D19/00F27D2019/0003
Inventor 张文良李贤君史悦璋孙立壮陈润哲周彤
Owner BEIJING RES INST OF MECHANICAL&ELECTRICAL TECH
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