Rotary air preheater heat transfer corrugated plate with interrupted holes and processing method for rotary air preheater heat transfer corrugated plate

Abstract

The invention discloses a rotary air preheater heat transfer corrugated plate with interrupted holes and a processing method for the rotary air preheater heat transfer corrugated plate. The interrupted holes are formed in the rotary air preheater heat transfer corrugated plate; the rotary air preheater heat transfer corrugated plate is formed by alternately overlapping a first locating plate and a second locating plate; the second locating plate is 0.4-0.8mm thick; the first locating plate is formed by connecting an incision and a ripple with each other; the first locating plate is 0.4-0.8mm thick; the interrupted holes are round and rectangular in shape, and the size, the spacing and the arrangement mode of the interrupted holes are comprehensively obtained after being verified by the strict technical design and experimental results; by forming the round interrupted holes in the carbon steel flat plate, and then, rolling is performed through a corrugated roller to form the rotary air preheater heat transfer corrugated plate with the interrupted holes. According to the novel rotary air preheater heat transfer corrugated plate with the interrupted holes, the heat-transfer characteristic of the existing rotary air preheater heat transfer corrugated plate can be effectively improved, and the flow resistance in the channel of the existing rotary air preheater heat transfer corrugated plate is reduced, and meanwhile, steel consumption required for processing the rotary air preheater heat transfer corrugated plate is reduced.

Description

technical field [0001] The invention relates to the field of rotary air preheaters, in particular to a rotary air preheater heat transfer corrugated plate with spoiler holes and a processing method thereof. Background technique [0002] The rotary air preheater is an important component in coal-fired power plants because it can recover low-grade heat energy from the flue gas. The rotary air preheater is usually composed of densely packed heat transfer corrugated plates, so the heat transfer corrugated plate is the core component of the rotary air preheater, and the structure of the corrugated plate determines the heat transfer characteristics and flow resistance of the rotary air preheater In other cases, the heat transfer characteristics are directly related to the efficiency of the rotary air preheater, and the flow resistance is directly related to the energy consumption of the fan. The corrugated plates of the commonly used rotary air preheater usually have low heat tra...

AI Technical Summary

Problems solved by technology

The corrugated plate of the commonly used rotary air preheater usually has low heat transfer characteristics, and the flow resistance in the corrugated plate is relatively large.

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