Gas-gas energy exchange device and coating dryer system

Abstract

The invention discloses a gas-gas energy exchange device and a coating dryer system.The gas-gas energy exchange device is applied to a dryer and comprises an air duct frame, a gas exchanger and a heating device, and the gas exchanger is provided with two gas channels used for conducting heat exchange on two sets of gas; the two gas channels communicate with a low-temperature gas source and an exhaust pipe of the dryer correspondingly so that heat of high-temperature waste gas exhausted by the exhaust pipe can be transmitted to supplementary gas of the low-temperature gas source. The gas exchanger is detachably arranged in the air duct frame; the heating device is used for heating the introduced gas, the gas inlet end of the heating device is communicated with a leading-out pipeline used for leading out the supplemented gas after temperature rise in the gas exchanger, and the gas outlet end of the heating device is communicated with an air inlet pipe of the dryer. According to the gas-gas energy exchange device, the waste of energy consumption can be reduced, so that the aim of saving energy is fulfilled.

Description

technical field [0001] The invention relates to the technical field of drying system design, and more specifically relates to an air-air energy exchange device. In addition, the present invention also relates to a coating dryer system comprising the above-mentioned air-air energy exchange device. Background technique [0002] The exhaust temperature of the coating and printing drying system often exceeds 80°C, and the higher temperature exhaust is usually directly discharged into the air, resulting in waste of energy consumption. [0003] Dryers above 130°C and with high humidity usually require relatively high exhaust air volume and make-up air. However, in the prior art, dryers with high exhaust air volume cannot take in a large amount of air because the temperature of the air intake is much lower than The temperature of the exhaust air, a large amount of low-temperature intake air is likely to affect the internal ambient temperature, but a large exhaust air volume but a ...

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Problems solved by technology

[0003] Dryers above 130°C and with high humidity usually require relatively high exhaust air volume and make-up air. However, in the prior art, dryers with high exhaust air volume cannot take in a large amount of air because the temperature of the air intake is much lower than The temperature of the exhaust air, a large amount of low-temperature intake air is likely to affect the internal ambient temperature, but a large exhaust air volume but a small intake air volume tends to waste more energy

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