Modularization corrugated plate type heat exchanger

Abstract

The invention discloses a modularization corrugated plate type heat exchanger which comprises end flow guide modules, middle flow guide modules and heat exchange assemblies. Each heat exchange assembly is formed by connecting one or more heat exchange modules in series or in parallel. Each heat exchange module comprises a heat exchange shell and wave-shaped heat exchange fins. Each heat exchange shell is of a rectangle structure with the upper end face and the lower end face being opened. The wave-shaped heat exchange fins are overlapped together and fixed into the heat exchange shells. Each end flow guide module comprises a flow guide box with three continuous faces arranged to be opened. A plurality of L-shaped channel baffles are fixedly arranged in the flow guide boxes, and short arms of the adjacent channel baffles are vertically distributed in the inside space of the flow guide boxes. Each middle flow guide module comprises a flow guide shell with three continuous faces arranged to be opened; plate-shaped baffles and L-shaped air flow baffles are arranged in the flow guide shells at intervals; and the plate-shaped baffles make contact with the L-shaped air flow baffles. At least one middle flow guide module is arranged between every two adjacent heat exchange assemblies, and each end flow guide module is mounted at the free end of the corresponding heat exchange assembly.

Description

technical field [0001] The invention belongs to the field of waste gas waste heat recovery equipment, and in particular relates to a modular corrugated plate heat exchanger for energy exchange between combustion boilers, industrial furnace waste gas and combustion-supporting gas. Background technique [0002] Existing heat exchangers used in exhaust gas and waste heat recovery have the following disadvantages: 1. The discharge flow rate of the flue gas is much larger than the flow rate of the combustion-supporting gas for heat exchange with it, and it is difficult for the system to digest the heat in the flue gas to the maximum extent, resulting in There is still a lot of waste heat in the flue gas that is wasted; in addition, when the flue gas is subjected to water mist dust removal, desulfurization and denitrification environmental protection treatment, a lower flue gas discharge temperature is required, and the flue gas still carries a large amount of waste heat, making it...

AI Technical Summary

Problems solved by technology

[0002] Existing heat exchangers used in exhaust gas and waste heat recovery have the following disadvantages: 1. The discharge flow rate of the flue gas is much larger than the flow rate of the combustion-supporting gas for heat exchange with it, and it is difficult for the system to digest the heat in the flue gas to the maximum extent, resulting in There is still a lot of waste heat in the flue gas that is wasted; in addition, when the flue gas is subjected to water mist dust removal, desulfurization and denitrification environmental protection treatment, a lower flue gas discharge temperature is required, and the flue gas still carries a large amount of waste heat, making it difficult to achieve subsequent flue gas treatment. ideal effect

2. The heat exchanger can only provide waste heat gas of the same temperature, which is difficult to meet the needs of users for a variety of hot air with different lower temperatures at the same time; 3. This type of heat exchange is currently used for energy exchange between exhaust gas and combustion-supporting gas Due to the large volume, heavy weight, complex structure and process, difficult maintenance, waste heat recovery efficiency and volume ratio are not very ideal, which reduces the economy and limits its practicability and technology promotion.

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