Fresh air heat recovery method and equipment

Abstract

The invention relates to the air treatment method and the device, especially to the new wind heat recycling method and its device. The method has the new air passage and the exhaust passage separated by the air passage plate; the liquid soakage layer of the said plate at the exhaust passage side; the minim liquid flows in or on the soakage layer when refrigeration to realize the heat exchange between the new air passage and the exhaust passage; the temperature difference between the new air passage and the exhaust passage realizes the heat exchange when heating. The device comprises the air passage wall, the new air intake, the new air outtake, the exhaust intake, the exhaust outtake, the new air passage and the exhaust passage, also the liquid intake, the liquid arranging structure connecting the liquid intake, and the soakage layer of the air passage plate at the side of the exhaust passage. The invention has high heat recycling ratio and wide utilization.

Description

technical field [0001] The invention relates to an air treatment method and its device, in particular to a fresh air heat recovery method and its device for air-conditioning equipment. Background technique [0002] In order to meet the requirements of comfort, modern buildings generally install air-conditioning equipment. In order to improve the indoor air quality, air-conditioned rooms need to properly introduce fresh air. [0003] At present, there are mainly the following methods for dealing with fresh air: [0004] 1. The outdoor fresh air is directly pumped into the room, and the indoor air is directly discharged to the outside. There is no energy recovery device installed between the two air streams. Due to the simple structure of this method, most of the current air-conditioning systems adopt this method. The disadvantage of this method is that it consumes a lot of energy, and the energy consumption of fresh air accounts for 25% to 40% of the total energy consumptio...

AI Technical Summary

Problems solved by technology

The total heat recovery rate of these two heat recovery devices is about 70%, and is generally suitable for occasions with a large fresh air volume. Although the former also has a small air volume model, the material cost of the model is expensive, and the total heat recovery efficiency is at most about 79%.

The latter sprays a large amount of liquid and must be equipped with a circulation pump and a solution tank. The device has a large volume and high cost

The application number is 200310122814.4 "Dividing wall solvent medium total heat recovery method and device" is to use the solution to circulate in the air duct to achieve the purpose of heat recovery, heat and moisture are transferred by the solution flowing between the fresh air duct and the exhaust duct , this method must be equipped with a circulation pump and a solution tank, the device is large in size, high in cost, and the recovery efficiency is limited

The patent application with application number 200410017627.4 discloses "a highly efficient gas total heat recovery and energy conversion method", which actually cannot achieve the total heat recovery rate greater than 100% as it says, because there is no perpetual motion machine in the world, After one kind of energy is converted into another kind of energy, the amount cannot be greater than the original amount, and this method also has the disadvantages of high cost and complicated structure

[0007] From the above analysis, it can be seen that the existing fresh air heat recovery methods and devices have the above disadvantages, such as low heat recovery rate, high cost, large volume, and only suitable for large flow occasions, etc.

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