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Rotary high-temperature air preheater

An air preheater, rotary technology, applied in regenerative heat exchangers, indirect heat exchangers, heat exchanger types, etc., can solve the problem of working temperature, furnace temperature, pressure pulsation, etc. The difficulty of product quality control and other problems has achieved the effect of mature and reliable working principle, numerous manufacturers, and convenient structure and assembly.

Active Publication Date: 2012-11-14
SHANGHAI BOILER WORKS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) Two sets of furnace burners are required, and two sets of fuel supply pipelines are required, which requires a large investment;
[0006] (2) There are obvious fluctuations in the temperature and pressure of the furnace, which makes it difficult to control product quality
[0007] (3) The combustion control device is complex
[0008] Rotary air preheaters currently use a large number of metal heat storage elements, which generally cannot withstand operating temperatures above 450°C

Method used

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  • Rotary high-temperature air preheater
  • Rotary high-temperature air preheater
  • Rotary high-temperature air preheater

Examples

Experimental program
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Embodiment

[0036] Such as figure 1 As shown, it is a schematic structural diagram of a rotary high-temperature air preheater. The rotary high-temperature air preheater is composed of an upper cover 1, a rotor 2, a supporting cylinder 3, a transmission device 4, an external frame 5 and an expansion guide device 6 . The outer frame 5 is provided with a support cylinder 3, a rotor 2 on the support cylinder 3, and a transmission device 4 located on one side of the support cylinder 3. The transmission device 4 is connected to the rotor 2, and the rotor 2 is provided with an upper cover 1. The cover 1 is connected to the outer frame 5 by expansion guides 6 .

[0037] Such as figure 2 Shown is a top view of the upper cover, image 3 In its bottom view, the upper cover 1 includes an upper cover shell 11 and an inner heat insulating layer 17 of the upper cover provided on its inner side, and an air seal air supply pipeline 15 is provided at the edge of the upper surface of the upper cover she...

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Abstract

The invention provides a rotary high-temperature air preheater. The air preheater is characterized by comprising an external framework, wherein the external framework is internally provided with a supporting barrel, rotors arranged on the supporting barrel and a transmission device arranged at one side of the supporting barrel; the transmission device is connected with the rotors; and an upper cover is arranged on the rotors and is connected with the external framework via expansion guiding devices. The air preheater has the following advantages: the air preheater can realize rapid assembly, allow input of waste gas (about 1200 DEG C) discharged from kilns, and realize that the highest temperature of the output hot air can be up to about 1000 DEG C and the temperature of the discharged waste gas can be reduced to 200 DEG C or below.

Description

[0001] This application is a divisional application of a rotary high-temperature air preheater. The filing date of the original application is October 21, 2009, the application number is: 200910197461.1, and the invention name is a rotary high-temperature air preheater. technical field [0002] The invention relates to a rotary high-temperature air preheater, which is used for waste heat recovery of various industrial kilns. The exhaust gas discharge temperature can be controlled below 200°C, and the maximum air heating temperature can reach about 1000°C. It belongs to the rotary heat exchanger. The technical field, in particular, relates to sealing structures. Background technique [0003] Rotary air preheater is a mature equipment commonly used in large boiler systems. It utilizes heat accumulators (generally called rotors) that continuously pass through hot air and cold air to realize the continuous transfer of heat from hot air to cold air. [0004] At present, in the fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28D19/04F27D17/00F16J15/16
Inventor 蔡明坤余忠海陆建模王勇
Owner SHANGHAI BOILER WORKS
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