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Efficient air preheater for fuel gas annealing furnace

A technology of air preheater and annealing furnace, which is applied in the direction of furnace, waste heat treatment, furnace components, etc. It can solve the problems of low preheating temperature, short equipment life, poor heat transfer effect of preheater, etc., and achieve high preheating temperature , Reduce equipment maintenance costs, long service life

Pending Publication Date: 2021-09-24
HEZE BOILER FACTORY
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Problems solved by technology

[0002] At present, the air preheater of general gas annealing furnace manufacturers adopts carbon steel shell and tube air preheater. The heat exchange effect of this preheater is poor, and the preheating temperature is low. Generally, it can only be preheated to 220 ℃, and the equipment life is short. It needs to be replaced after three to five years

Method used

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  • Efficient air preheater for fuel gas annealing furnace
  • Efficient air preheater for fuel gas annealing furnace

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Embodiment Construction

[0017] The technical solution of this patent will be further described in detail below in conjunction with specific embodiments.

[0018] A high-efficiency air preheater for a gas annealing furnace, including an air preheater body, the air preheater body includes a wind box 1, and an inner cylinder 3 is provided on one side of the wind box 1, and the inner cylinder 3 is far away from the wind box 1 One end of the cylinder is provided with a cold air box 4, and the end of the cold air box 4 away from the inner tube 3 is provided with a hot air box 5.

[0019] Further speaking, an outer cylinder 2 is provided outside the inner cylinder 3 .

[0020] Furthermore, ribs 7 are provided between the inner cylinder 3 and the outer cylinder 2 .

[0021] Furthermore, a convection tube bundle 6 is arranged inside the inner cylinder 3 .

[0022] Furthermore, the convection tube bundle 6 is pressed with screw marks before the tubes are bent, so as to increase the heat exchange area and imp...

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Abstract

The invention discloses an efficient air preheater for a fuel gas annealing furnace. The efficient air preheater for the fuel gas annealing furnace comprises an air preheater body; the air preheater body comprises an air bellow; an inner barrel is arranged on one side of the air bellow; a cold air box is arranged at the end, far away from the air bellow, of the inner barrel; and a hot air box is arranged at the end, far away from the inner barrel, of the cold air box. The efficient air preheater for the fuel gas annealing furnace, which is made by using the technical scheme, has the advantages that the heat exchange efficiency is high, the preheating temperature is high, the fuel gas annealing furnace can be preheated to 300 DEG C or above generally, the service life is long, the preheater does not need to be replaced generally within 20 years, natural gas consumption is greatly reduced, and the equipment maintenance cost is reduced.

Description

technical field [0001] The invention relates to the technical field of air preheaters, in particular to a high-efficiency air preheater for a gas annealing furnace. Background technique [0002] At present, the air preheater of general gas annealing furnace manufacturers adopts carbon steel shell and tube air preheater. The heat exchange effect of this preheater is poor, and the preheating temperature is low. Generally, it can only be preheated to 220 ℃, and the equipment life is short. It needs to be replaced after three to five years. Therefore, it is necessary to design a high-efficiency air preheater with high heat exchange efficiency, high preheating temperature and long service life. Contents of the invention [0003] The object of the present invention is to provide a high-efficiency air preheater for a gas-fired annealing furnace to solve the problems raised in the above-mentioned background technology. [0004] In order to achieve the above object, the present i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27D17/00
CPCF27D17/004Y02P10/143
Inventor 刘章燕刘青蔚李传杰
Owner HEZE BOILER FACTORY
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