Riveting type plate heat exchanger

Abstract

The invention discloses a riveting type plate heat exchanger. The riveting type plate heat exchanger comprises a shell and a heat exchange core body; a lining is further correspondingly arranged in the shell; and the heat exchange core body comprises a plurality of heat exchange plates which are arranged at intervals in an overlapping mode and a plurality of flow turbulence pieces, every two heatexchange plates which are adjacent to each other up and down are correspondingly connected through a belt type flow guiding and sealing strip, the belt type flow guiding and sealing strips are arranged between the heat exchange plates on every two adjacent side surfaces in a 90-degree staggered mode, so that a cross-shaped cross channel is formed between any two adjacent heat exchange plates, thebelt type flow guiding and sealing strips are correspondingly fixed through bolts or rivets arranged at equal intervals, and the heat exchange core body is correspondingly fixed through G-type steel stand columns which are arranged at four corners and used for positioning and fixing. According to the plate heat exchanger, the structure is reasonable, the manufacturing process is simple, a cold working method is adopted for manufacturing and assembling, no thermal deformation and thermal stress are generated, and the precision of a finished-product heat exchanger is high.

Description

Technical field [0001] The invention relates to a riveted plate heat exchanger. Background technique [0002] Industrial furnaces belong to the major energy consumption and pollutant emissions in all walks of life, and generally account for 50% to 70% of the energy consumption of the whole plant. The energy saving and emission reduction of industrial furnaces are very important. [0003] Industrial furnaces generally use air preheaters to recover the waste heat in the flue gas to achieve the purpose of improving the thermal efficiency of the heating furnace and saving fuel. [0004] At present, the plate-type air preheater successfully used in China is a fully welded and sealed structure. [0005] However, the fully welded plate air preheater has disadvantages such as large welding workload, complicated process, long manufacturing cycle, and high price. [0006] There are many introductions to non-welded plate heat exchangers in the patent literature. [0007] CN102003717A introduces a ...

AI Technical Summary

Problems solved by technology

Under long-term use conditions, it is difficult to guarantee the sealing effect and bonding strength

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