Air bellow heating chamber for muffle quenching furnace

Abstract

The invention discloses an air bellow heating chamber for a muffle quenching furnace. The air bellow heating chamber comprises a heating box and an air bellow. The heating box communicates with the air bellow, a driving motor is arranged on the air bellow, an impeller is arranged on an output shaft of the driving motor, and a first pipeline and a second pipeline communicate with the heating box and the air bellow. Valve bodies are rotationally arranged on the first pipeline and the second pipeline and are in linkage with each other. According to the air bellow heating chamber, the first pipeline and a second tangential pipe body are separated through a first plate body in the first pipeline, and the first pipeline communicates with the heating box. The second pipeline and a first tangential pipe body are separated through a second plate body in the second pipeline, the second pipeline communicates with the air bellow, and a driving piece drives the valve bodies to rotate by 90 degrees.A second plate body in the first pipeline separates the first pipeline from the first tangential pipe body, and the first pipeline communicates with the air bellow. A first plate body in the second pipeline separates the second pipeline from the second tangential pipe body, and the second pipeline communicates with the heating box, and reverse circulation is achieved.

Description

technical field [0001] The invention relates to a wind box heating chamber, in particular to a wind box heating chamber used in a muffle quenching furnace. Background technique [0002] In order to realize the reversing function of the heat circulating air in the existing aluminum alloy quenching furnace, the reversing air valve adopted is a multi-plane reversing structure. No matter the positive and negative circulation, the air flow direction will produce a 90° bend every time it passes through a plane, the air flow direction will change sharply many times, the flow field will have many eddies, the pressure loss will be large, and the efficiency will be low, which will affect the temperature uniformity in the flow field of the equipment. At the same time, the size of the equipment is large. In the case of the existing multi-plane air valve reversing structure, in order to meet the equipment performance, the wind pressure and flow of the fan can only be increased, thereby ...

AI Technical Summary

Problems solved by technology

Regardless of positive and negative circulation, the air flow direction will produce a 90° bend every time it passes through a plane, the air flow direction will change sharply many times, the flow field will have many eddies, the pressure loss will be large, and the efficiency will be low, thus affecting the temperature uniformity in the flow field of the equipment

At the same time, the equipment has a large size

In the case of the existing multi-plane air valve reversing structure, in order to meet the performance of the equipment, the wind pressure and flow of the fan can only be increased, thereby increasing the power of the fan motor and increasing the operating cost of the equipment

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