Control device of fruit and vegetable air-conditioning fresh-keeping box

Abstract

The invention discloses a control device of a fruit and vegetable air-conditioning fresh-keeping box; the control device structurally comprises a system power supply box, an air detection control device, an upper computer, an air compressor, an air storage tank, a compressed air filter and a nitrogen making machine, wherein the air compressor, the air storage tank, the compressed air filter and the nitrogen making machine are sequentially connected in series; the output end of the nitrogen making machine is connected to the air inlet end of the air-conditioning box through an electromagnetic valve; the air outlet end of the air-conditioning box is connected to an air collecting end of the air detection control device; a one-way valve is connected between the air compressor and the air storage tank; the electromagnetic valve is connected between the air storage tank and the compressed air filter; the output end of the system power supply box is respectively connected to the air detection control device, the air compressor and a power supply switch of the nitrogen making machine; and the output end of the air detection control device is respectively connected to the air compressor, the control input end of the nitrogen making machine and the wiring terminal of the electromagnetic valve. The control device of the fruit and vegetable air-conditioning fresh-keeping box disclosed by the invention has the benefits that: the space of the air-conditioning box is sufficiently utilized; the air-conditioning environment in the whole storage space is unnecessary to damage while fetching vegetables; the air-conditioning box is safe and convenient to use and can be repeatedly used; and thus, the control device disclosed by the invention has the advantages of being simple in structure, small in occupation space and low in power consumption.

Description

technical field [0001] The invention relates to a modified atmosphere fresh-keeping box for fruits and vegetables, in particular to a control device for a modified-atmosphere fresh-keeping box for fruits and vegetables. Background technique [0002] Composite modified atmosphere fresh-keeping packaging is collectively referred to as MAP packaging in the world. It uses a mixed gas different from the atmospheric composition to replace the air around the packaged fruits and vegetables, and uses the air permeability and gas barrier properties of the packaging materials to keep the fruits and vegetables in a suitable gas environment. Inhibit the growth and reproduction of microorganisms, slow down the metabolism of fresh fruits and vegetables to prolong the freshness period of fruits and vegetables. In the actual application process, due to the temperature difference between the inside and outside of the fresh-keeping bag, it is easy to generate condensation in the bag; in additi...

AI Technical Summary

Problems solved by technology

In the actual application process, due to the temperature difference between the inside and outside of the fresh-keeping bag, it is easy to generate condensation in the bag; in addition, because the process of spontaneous air conditioning is carried out in the fresh-keeping bag, the gas parameters are constantly changing, and oxygen is constantly being consumed. The continuous accumulation of carbon dioxide may easily cause the overrun of the air conditioning parameters; and the process of packaging and bagging of fruit and vegetable products is cumbersome

Images