Abrasion-proof false pipe component, detachable assembly component and smoke heat exchanger

Abstract

The invention provides a smoke heat exchanger, an abrasion-proof false pipe component and a detachable assembly component of abrasion-proof false pipes. Detachable assembly of the abrasion-proof false pipes can be realized, so that changing of the abrasion-proof false pipes after abrasion is more rapid and convenient, and meanwhile, the performance of the smoke heat exchanger is prevented from being affected by changing. The detachable assembly component comprises a support plate and an insertion rod, wherein the top surface of the support plate is provided with a plurality of assembly positions; the assembly positions are distributed at intervals along the extension direction of the support plate, are in one-to-one correspondence with the abrasion-proof false pipes, and are used for supporting the abrasion-proof false pipes; and the insertion rod is inserted and connected with the top surface of the support plate so as to press and block the abrasion-proof false pipes. The abrasion-proof false pipe component comprises the plurality of abrasion-proof false pipes which are arranged at intervals in the same direction, and the two ends of each abrasion-proof false pipe separately extend into the corresponding assembly position of the corresponding detachable assembly component. The smoke heat exchanger comprises a plurality of heat exchange pipe rows and the above abrasion-proof false pipe components which are arranged at the front-most end and in front of the heat exchange pipe rows.

Description

technical field [0001] The invention relates to the technical field of flue gas heat exchange, in particular to a flue gas heat exchanger and an anti-friction fake tube assembly thereof. Background technique [0002] In the field of flue gas treatment technology, a flue gas heat exchanger is usually arranged at the flue position between the air preheater outlet of the coal-fired thermal power unit and the electrostatic precipitator, so as to exchange heat for the flue gas discharged from the air preheater and effectively recover Use flue gas heat. Since the flue gas environment where the flue gas heat exchanger is located has a certain dust concentration, it will cause certain wear and tear to the heat exchange tube row in the flue gas heat exchanger. [0003] Conventional anti-wear measures include installing anti-wear dummy tubes in front of the heat exchange tube row, and the anti-wear dummy tubes are welded and fixed on the support plate used to support the heat exchang...

AI Technical Summary

Problems solved by technology

[0006] 1. Due to the small operating space on site, it is inconvenient to cut off and weld;

[0007] 2. During maintenance and replacement, it is easy to cause indirect damage to the heat exchange tube row downstream of the flue gas;

[0008] 3. If the downstream anti-wear fake tube is damaged, it needs to be cut off and replaced with the upstream anti-wear fake tube, resulting in waste

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