Gas waste heat recovery and purification device and system thereof

Abstract

The invention discloses a gas waste heat recovery and purification device and system, and the device comprises an evaporation chamber which is provided with a first water inlet and a first exhaust port; the condensation chamber is connected with the evaporation chamber, and the condensation chamber is provided with a first air inlet, a second air outlet and a first water outlet; the air extracting device is communicated with the first exhaust port, and the air extracting device can be used for extracting air from the evaporation chamber; and the condensate water collector is respectively communicated with the first water outlet and the first water inlet, and the condensate water collector is used for collecting condensate water condensed in the condensation chamber and supplying the condensate water into the evaporation chamber. The boiling point of water in the evaporation chamber is lower than the continuous condensation point of the condensation chamber, waste heat recovery of exhaust gas is achieved, pure condensate water is generated in the condensation heat release process of the exhaust gas, and therefore separation of non-condensable gas in the exhaust gas is achieved.

Description

technical field [0001] The invention relates to the technical field of gas waste heat recovery and purification, in particular to a gas waste heat recovery and purification device and system thereof. Background technique [0002] In the process of energy consumption, generally only a part of the energy can be rationally utilized, and the other part of the energy is turned into waste heat and waste energy in different forms. If the waste heat is discharged directly, it will lead to waste of energy and damage to the environment. [0003] Specifically, the molding of EPP (polypropylene plastic foam material) and EPS (polystyrene foam) in the packaging industry requires a large amount of steam, but due to the limitation of the process, the utilization rate of these steam is not high and produces a lot of exhaust gas, exhaust air Contains a large amount of latent heat of condensation, if it is directly discharged, it will lead to a waste of energy; and the exhaust gas inevitably ...

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Problems solved by technology

[0002] In the process of energy consumption, generally only a part of the energy can be rationally utilized, and the other part of the energy is turned into waste heat and waste energy in different forms. If the waste heat is discharged directly, it will lead to waste of energy and damage to the environment.

[0003] Specifically, the molding of EPP (polypropylene plastic foam material) and EPS (polystyrene foam) in the packaging industry requires a large amount of steam, but due to the limitation of the process, the utilization rate of these steams is not high and produces a lot of exhaust gas. Contains a large amount of latent heat of condensation, if it is directly discharged, it will lead to a waste of energy; and the exhaust gas inevitably contains a lot of non-condensable gas, if the exhaust gas is recovered by traditional vapor compression and recovery, and the recovered exhaust gas The gas is directly applied to the production process, and the non-condensable gas contained in the exhaust gas will affect the normal production process

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