Industrial oven waste heat recovery equipment

Abstract

The invention discloses industrial oven waste heat recovery equipment which comprises a box body and heat exchange pipes. The two opposite sides of the box body are provided with a waste heat gas inlet and a waste heat gas outlet correspondingly, and the waste heat gas outlet is provided with an oil contamination separation and collection device and a safety fire prevention device, a heat exchangecavity is arranged in the portion, between the waste heat gas inlet and the waste heat gas outlet, in the box body, the multiple heat exchange pipes are arranged in the heat exchange cavity, an air inlet cavity and an air outlet cavity are formed in one side of the heat exchange cavity in the box body, the other side of the heat exchange cavity is provided with a gas buffer cavity, a fresh air port and an automatic dust blowing device are arranged outside the air inlet cavity, a heat recovery air inlet is arranged outside the air outlet cavity, and the fresh air port communicates with the heat recovery air inlet through a heat exchange pipeline and the gas buffer cavity. A high pressure air blowing device is arranged outside the box body, and an air outlet of the high pressure air blowingdevice is arranged in the heat exchange cavity of the box body. By means of the industrial oven waste heat recovery device, waste heat in high-temperature waste heat flue gas can be sufficiently recovered and utilized to be converted into heat energy for reuse, and drying equipment such as an industrial oven can operate stably so as to reduce the cost.

Description

technical field [0001] The invention relates to the field of heat energy recovery, in particular to waste heat recovery equipment for industrial ovens. Background technique [0002] In the production process of the PCB industry, a large amount of oven equipment is used, and drying equipment such as industrial ovens is the main energy-consuming equipment in industrial production. Because the oven needs to continuously and forcibly discharge a large amount of high-temperature flue gas during production, its maximum temperature can reach several hundred degrees, and it contains oil and dust. The heat carried by this high-temperature gas is about 30% or even as high as 50% of the total input energy of the oven. These high-temperature flue gases not only take away a lot of waste heat but also bring a huge burden to the factory exhaust gas treatment system. There are potential safety hazards caused by blockage of oil pollution adsorption and smoke exhaust pipes. Increasing the c...

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Problems solved by technology

The heat carried by this high-temperature gas is about 30% or even as high as 50% of the total input energy of the oven. These high-temperature flue gases not only take away a lot of waste heat but also bring a huge burden to the factory exhaust gas treatment system. There is a safety hazard in the clogging of oil pollution adsorption and smoke exhaust pipes

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