Quenching and tempering system utilizing air source heat pump and ultrasonic equipment

Abstract

The invention discloses a conditioning system utilizing an air source heat pump and ultrasonic equipment. The invention discloses a humidifying and conditioning system for improving grain quality before grain delivery, and the system utilizes a water purifier and a grid air port to improve the quality of humidifying and conditioning water vapor; the air source heat pump system and the ultrasonic nebulizer are combined, the air inlet temperature is slightly higher than the initial temperature of a grain pile according to data of the grain condition monitoring system, influences of seasons and weather conditions are avoided, and grains are effectively humidified and conditioned; a ventilation mode is improved, a ventilation mode of'up-down combination ', 'dynamic-static combination', 'selective humidification 'and'partition treatment' is adopted, the precision is high, the control over the moisture increase of grains is facilitated, the moisture gradient of grain piles is reduced, and the problems that moisture distribution is not uniform and the moisture gradient in the grains is large are solved; while the shelf life of the grains is not shortened, the grain storage process quality and the processing performance are improved, crushing in the circulation process is reduced, and the economic benefits of storage enterprises are improved.

Description

technical field [0001] The invention belongs to the field of grain and oil storage, in particular to a conditioning system utilizing an air source heat pump and ultrasonic equipment. Background technique [0002] Among the various links of grain circulation, grain storage is the core. Effective means and measures should be taken to keep the quality of food unchanged to the greatest extent, reduce damage and save costs. Among them, mechanical ventilation has the characteristics of significant cooling effect and low cost in grain ventilation storage, and plays a vital role in ensuring the safety of grain storage. However, long-term low-temperature dry air exchange cooling also greatly increases the amount of water loss during grain storage. Especially in areas rich in early and mid-season rice, after ventilation, the moisture in the dry grain will be reduced even lower. According to investigations: after rice storage for 2 to 3 years, the moisture generally drops below 12%, ...

AI Technical Summary

Problems solved by technology

[0004] However, the existing humidification and conditioning methods, including ultrasonic humidification and conditioning, still face the following problems: 1) The ventilation method is fixed, resulting in uneven humidification, large gradients in the moisture humidification range, or the maximum local moisture content of the grain near the vent reaches Above the safety line, it is easy to cause condensation; 2) Ultrasonic atomizers have high requirements on water quality, and low water quality mist will affect the grain and air in the warehouse; 3) The timing of conditioning and ventilation conditions is very dependent on weather conditions; 4) For For paddy with high original moisture, the effect of humidification and conditioning is uncertain, and it is easy to break through the safe storage of water; 5) Condensation in the air duct can easily cause bad grain

The methods disclosed in the above patents all control the grain moisture but do not adjust it according to the actual grain situation, and cannot be applied to the conditioning and tempering of granaries with complex grain conditions

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