Discharge gas and waste heat recovery heat converter

Abstract

The invention discloses a heat exchanger for recovering exhaust gas and waste heat, which comprises a heat exchanger and a fluid diverter. The heat exchanger comprises a case body and corrugated heat exchange plates. The case body has a cuboid structure with opened up and down end surfaces; the corrugated heat exchange plates are laminated together and fixed inside the case body; and a gas passage is provided between adjacent corrugated heat exchange plates, and the inlet and outlet of the gas passage are provided on one of the opened end surfaces. The fluid diverter comprises a case body and passage partitioning plates; the partitioning plates are parallelly disposed and fixed inside the case body of the fluid diverter to divide the space of case body into an exhaust gas passage and a combustion supporting gas passage; the fluid diverter is installed at the inlet and outlet of the heat exchanger; and the exhaust gas passage and the combustion supporting gas passage are separated from each other. The inventive heat exchanger can recover exhaust gas and waste heat on site; and has the advantages of small volume, light weight, simple structure, remarkably improved unit volume heat exchange efficiency, good reliability, saved energy consumption and environmental friendliness.

Description

technical field [0001] The invention belongs to the field of exhaust gas and waste heat recovery equipment, and in particular relates to a waste gas and waste heat recovery 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 main utilization method of recovered heat is to generate hot water or heat fuel, so that the energy recovered by the system is difficult to recover when the heating equipment is continuously working. Maximum digestion; 2. Existing heat exchangers of this type used for energy exchange between exhaust gas and combustion-supporting gas are not very ideal due to their large volume, heavy weight, complex structure and process, difficult maintenance, and unsatisfactory recovery efficiency and volume ratio Thereby reduced economy, has limited its practic...

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Problems solved by technology

[0002] Existing heat exchangers used in exhaust gas and waste heat recovery have the following disadvantages: 1. The main utilization method of recovered heat is to generate hot water or heat fuel, so that the energy recovered by the system is difficult to recover when the heating equipment is continuously working. Maximum digestion; 2. Existing heat exchangers of this type used for energy exchange between exhaust gas and combustion-supporting gas are not very ideal due to their large volume, heavy weight, complex structure and process, difficult maintenance, and unsatisfactory recovery efficiency and volume ratio Thereby reducing the economy, limiting its practicability and technology promotion

With this structure, although the heat conduction sheet increases the heat dissipation area, it also produces a thermal hysteresis effect, which greatly limits the improvement of waste heat recovery efficiency.

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