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Rotatable hybrid array nozzle

An array type and nozzle technology, applied in heat treatment equipment, furnaces, heat treatment furnaces, etc., to achieve the effects of uniform distribution of heat transfer coefficient, improved heat transfer efficiency, and uniform heat transfer

Active Publication Date: 2019-11-05
BEIJING AVIATION FEIFANG MACHINERY EQUIP FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to design a rotatable hybrid array nozzle to solve the technical problem of how to reasonably match the hybrid array nozzle to achieve uniform jet velocity, ensure uniform distribution of heat transfer coefficient, and improve the average heat transfer coefficient.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Embodiment 1: The diameter of the circular spout is 100 mm, the width of the slit type spout is 50 mm, the distance between the slit type spout is 400 mm, the circular spout and the spout panel are at a certain angle b=90 °, and the circular spout is on the spout panel. The included angle between the projection line and the tangent line of the circle formed by the circular nozzles arranged in the circumferential direction is consistent with a=0°, and the number of circular nozzles and slit nozzles is calculated according to the total air distribution area.

[0044] Spout panel natural rotation device see Figure 5 , the rotating assembly 9 is installed in the center of the spout panel, the rotating assembly 9 is connected to the support shaft 10, the other end of the support shaft 10 is fixed on the wall plate, the spout panel is supported at a specified height, and the circulating air flows through the spout to the wall surface generated by the spout 7 and spout 8 The ...

Embodiment 2

[0046] The diameter of the circular nozzle is 60mm, the width of the slit nozzle is 60mm, and the distance between the slit nozzles is 500mm. The angle between the tangents of the circle formed by the arranged circular nozzles is a=30°, and the number of circular nozzles and slit nozzles is calculated according to the total area of ​​the air distribution. See embodiment 1 for the rotation mode of spout panel 3.

Embodiment 3

[0048] The diameter of the circular nozzle is 120mm, the width of the slit nozzle is 30mm, and the distance between the slit nozzles is 300mm. The angle between the circular nozzle and the nozzle panel is b=75°. The angle between the tangents of the circles formed by the arranged circular nozzles is a=25°, and the number of circular nozzles and slit nozzles is calculated according to the total area of ​​the air distribution. See embodiment 1 for the rotation mode of spout panel 3.

[0049] like Figure 8 As shown in the schematic diagram of the arrangement of mixed array nozzles in the embodiment, with the center of the nozzle panel 3 as the origin, the arrayed slit nozzles 8 are arranged in the same direction in the core area, and the edge area and the edge of the core area near the central area are arranged in a circular array. One or more layers of circular spouts 7 are arranged.

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Abstract

The invention relates to the technical field of industrial heat treatment furnaces, and mainly provides a rotatable hybrid array nozzle for injecting and heat-transferring equipment for the end face of a coiled material. The nozzle is applied to an injecting and heating box type heat treatment furnace for the end face of the coiled material. Nozzles are fixed on a nozzle face plate, and the uniform heating of the end face of the coiled material is realized by utilizing the rotatable function of the nozzle face plate; meanwhile, the advantages of slit type nozzles and the advantages of circularnozzles are combined, so that the nozzles are arranged on the nozzle face plate in a hybrid array mode through reasonable collocation and combination; and through the arrangement mode that the slit type nozzles are arranged at a core region, the circular nozzles are arranged at an edge region and the edge of the core region, reasonable distribution of the air volume is realized, so that the heattreatment requirements of unusual coiled materials are taken into consideration while the heating efficiency of common coiled materials is improved at the same time.

Description

technical field [0001] The invention relates to the technical field of industrial heat treatment furnaces, in particular to a rotatable mixed array nozzle, which is applied to a box-type heat treatment furnace for spraying and heating the end face of a coil. Background technique [0002] Due to the existence of gaps and oil films between the layers of the coil product, there is a contact thermal resistance between the layers. During the annealing process, the radial thermal conductivity is smaller than the thermal conductivity of the product material itself. The efficiency is higher than the radial heat transfer efficiency. Therefore, the use of array nozzles to spray and heat the end surface of the coil can effectively improve the heat transfer efficiency and shorten the heating time of the coil. At present, the coil end face spray heating method has become the development trend of the box-type coil annealing furnace. The fixed air flow nozzle structure, due to the fixed a...

Claims

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Application Information

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IPC IPC(8): C21D1/34C21D1/26C21D9/54
CPCC21D1/26C21D1/34C21D9/54
Inventor 高玉峰徐昭然李勇高如超龚奇龙
Owner BEIJING AVIATION FEIFANG MACHINERY EQUIP FACTORY
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