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Discharge Nozzle Plates for Center-to-End Fiber Oxidation Furnaces

A fiber, using furnace technology, applied in the field of furnaces for heating fibers, can solve problems such as increased cost, unevenness, and difficulty in precise alignment of nozzles

Active Publication Date: 2020-04-03
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] However, it can be difficult to precisely align openings in a hexagonal sheet of material with corresponding nozzles in a thin nozzle sheet
Misalignment of the openings of the hexagonal material with the nozzles in the nozzle sheet can cause the air exiting the nozzles to exit the nozzles in a less uniform and less parallel flow
Additionally, adding two sheets of hexagonal material to each air chamber increases the cost of manufacturing and assembling each air chamber

Method used

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  • Discharge Nozzle Plates for Center-to-End Fiber Oxidation Furnaces
  • Discharge Nozzle Plates for Center-to-End Fiber Oxidation Furnaces
  • Discharge Nozzle Plates for Center-to-End Fiber Oxidation Furnaces

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0073] Example 1 includes a furnace for heating fibres, the furnace comprising a supply structure disposed within the furnace between a first end and a second end of the furnace, the supply structure comprising a plurality of gas chambers stacked on top of each other, There are gaps between the plurality of plenums, wherein the plenums are in fluid communication with the heating system; wherein at least one of the plenums includes at least one side wall, the at least one side wall includes a plurality of passages formed therein, the at least A plenum configured to direct at least a portion of the heated gas from the plurality of passages into the interior of the furnace; and wherein each of the plurality of passages formed in the at least one plenum has a corresponding conical cross-sectional shape.

example 2

[0074] Example 2 includes the furnace of Example 1, wherein each of the passages formed in the at least one sidewall of the at least one plenum includes a respective inlet opening and a respective outlet opening.

example 3

[0075] Example 3 includes the furnace of Example 2, wherein for at least one of the passageways, the corresponding inlet opening is larger than the corresponding outlet opening.

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Abstract

One embodiment relates to a furnace for heating fibers. The furnace includes a supply structure disposed within the furnace between a first end and a second end of the furnace. The supply structure includes a plurality of air chambers stacked on top of each other with gaps therebetween. The plenum is in fluid communication with the heating system. at least one plenum comprising at least one side wall including a plurality of passages formed therein, the at least one plenum configured to direct at least a portion of the heated gas from the plurality of passages into an interior of the furnace . Each of the plurality of passages formed in the at least one air chamber has a corresponding conical cross-sectional shape.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of US Provisional Patent Application Serial No. 62 / 076,746, filed November 7, 2014, which is hereby incorporated by reference. Background technique [0003] Oxidation furnaces are commonly used to produce carbon fibers from precursors such as acrylic, pitch or cellulose fibers. One common processing method involves continuously drawing fiber segments of precursor material through one or more oxidation furnaces. [0004] Each of the oxidation furnaces includes a respective oxidation chamber in which oxidation of the fiber segments takes place. Each fiber segment may be drawn into a first oxidation furnace as a carbon fiber precursor and then passed through each oxidation furnace multiple times before exiting the final oxidation furnace as an oxidized fiber segment. Rollers and tensioners are used to draw the fiber segments through the oxidation chamber of the furnace. Each oxidation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D02J13/00D01F9/32
CPCD01F9/32D02J13/001F27B9/28F27D7/00F27D2007/023A21B1/33F27D3/00F27D7/02F27D11/00
Inventor 汉斯·L·梅尔高德丹尼尔·M·鲁夫马修·本森菲利普·乌
Owner DESPATCH INDS