Reinforced heat exchange element and air preheater
A technology of air preheater and heat exchange element, which is applied in the direction of heat exchanger shell, lighting and heating equipment, heat exchange equipment, etc., and can solve the problems of compression force drop, collapse, lodging, etc.
Pending Publication Date: 2019-10-15
青岛昌鑫电力设备有限公司
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Problems solved by technology
[0006] The invention provides a reinforced heat exchange element and an air preheater, which are used to solve the problems in the prior art that the heat exchange element is prone to drop in compaction force after high-pressure flushing and frequent high-pressure soot blowing, resulting in collapse and lodging.
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[0024] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are used to help understand the present invention, but are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not constitute a conflict with each other.
[0025] Among them, in the description of the embodiments of this application, unless otherwise specified, " / " means or means, for example, A / B can mean A or B; "and / or" in this article is only a description of associated objects The association relationship of indicates that there may be three kinds of relationships, for example, A and / or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. In addition, in the description of the embo...
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The invention discloses a reinforced heat exchange element and an air preheater. The reinforced heat exchange element comprises a frame, multiple reinforced heavy load plates and multiple heat exchange sheets; the frame comprises narrow-end stand column metal plates and wide-end stand column metal plates, the narrow-end stand column metal plates and the wide-end stand column metal plates are fixedly connected through folded-angle metal plates, the two narrow-end stand column metal plates are connected through narrow-end connecting metal plates, the two wide-end stand column metal plates are connected through wide-end connecting metal plates, multiple pieces of flat steel are arranged between the narrow-end connecting metal plates and the wide-end connecting metal plates, one end of each flat steel is fixedly connected with the corresponding narrow-end connecting metal plate, and the other ends of the flat steel are fixedly connected with the wide-end connecting metal plates; the multiple reinforced heavy load plates are arranged on the flat steel at intervals in a clamping manner; and the multiple heat exchange sheets are distributed in areas partitioned by the multiple reinforcedheavy load plates in the frame at intervals. The reinforced heat exchange element is used for solving the problems that after the heat exchange element is subjected to high-pressure washing and frequent high-pressure dust blowing, the pressing force is prone to being decreased, and then collapsing and lodging occur.
Description
technical field [0001] The invention relates to the technical field of air preheater equipment for thermal power plants and coal chemical boilers, in particular to a reinforced heat exchange element and an air preheater. Background technique [0002] The air preheater is a heat exchange device that uses the heat of the flue gas at the tail of the boiler to heat the air required for combustion. Since it works in the area with the lowest flue gas temperature, it recovers the heat of the flue gas and reduces the exhaust gas temperature, thus improving boiler efficiency. At the same time, due to the increase of combustion air temperature, it is beneficial to fuel ignition and combustion, reducing heat loss. [0003] Commonly used in power plants are rotary air preheaters (regenerative air preheaters) and tubular air preheaters (thermal conduction air preheaters). With the increase of steam parameters and unit capacity of power plant boilers, the volume and height of tubular ai...
Claims
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IPC IPC(8): F28F9/00F28F9/007F28F9/26F23L15/00
CPCF23L15/00F28F9/001F28F9/0075F28F9/26Y02E20/34
Inventor 张海泉
Owner 青岛昌鑫电力设备有限公司