Control method of temperature and humidity regulating device for fruit and vegetable storehouse

Abstract

The invention relates to a control method of a temperature and humidity regulating device for a fruit and vegetable storehouse. The control method adopts a heat recovery type water-air heat exchanger. The temperature and humidity regulating device comprises the water-air heat exchanger, wherein ice water in an ice tank is sprayed onto a filler of the water-air heat exchanger, and outdoor air realizes humidification and cooling in the water-air heat exchanger; low-temperature and high-humidity air is conveyed to the storehouse for moisturization storage of fruits and vegetables; the temperature and humidity regulating device further comprises a plate type heat exchanger, gas from an exhaust hole in the storehouse performs pre-cooling with outdoor gas in the plate type heat exchanger, and the mixed gas after pre-cooling performs spraying in the water-air heat exchanger to obtain the low-temperature and high-humidity gas. By changing the temperature and flow rate of water blown out of the ice storage tank and the flow rate of the air entering the water-air heat exchanger, the temperature of the storehouse can be stabilized at 2 DEG C, the humidity is stabilized at 98%-100%, and the storage period of the fruits and the vegetables is greatly improved.

Description

technical field [0001] The invention relates to a fresh-keeping facility for fruit and vegetable storage, in particular to a control method of a temperature and humidity adjusting device using a heat recovery type water-air heat exchanger. Background technique [0002] Fruits and vegetables (hereinafter referred to as "fruits and vegetables") are the necessities of life for human beings. Every year, a lot of waste is caused due to improper preservation. The food crisis of human beings is far more serious than imagined. Therefore, it is necessary to seek a suitable way to preserve fruits and vegetables is necessary. At present, the most important thing is to use mechanical cold storage to preserve fruits and vegetables. [0003] In the design of mechanical cold storage, the cooling capacity of the cold storage is usually calculated according to the maximum cooling load, so as to select the appropriate refrigeration unit. When the storage volume of fruits and vegetables is r...

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Problems solved by technology

[0005] In order to solve the problems that the mechanical cold storage cannot control the operating load well, the defects in temperature and humidity control, and the uneconomical operation of the wet cooling system, a heat recovery type water-air heat exchanger is proposed for the temperature and humidity of the fruit and vegetable storage. Control method of the regulating device

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