KR100334306B1 - Ozon using low temperature storehouse - Google Patents

Abstract

The present invention relates to a cold storage for long-term storage of crops, and to allow long-term storage of the crops in a sterilized state using ozone.

The present invention is to install an ozone generator to generate ozone inside the cold storage, install an ozone remover to suction and reduce the ozone inside the cold storage, the ozone generator in the controller after detecting the ozone concentration in the cold storage by the ozone sensor And by controlling the operation of the ozone remover.

Description

Ozon using low temperature storehouse

The present invention relates to a cold storage for long-term storage of crops, and to allow long-term storage of the crops in a sterilized state using ozone.

In recent years, urbanization and disinfection have increased due to industrial development and population growth, and the consumption of crops such as fresh fruits and vegetables has been diversified. Accordingly, freshly stored crops produced by farmers can be stored to consumers during non-production period. Storage technology to supply is being activated, which can supply crops to consumers even during non-production periods, satisfying consumer needs and increasing producers' incomes along with stabilizing crop prices.

The storage of crops usually uses a cold storage equipped with a refrigeration facility, but the existing cold storage is to maintain the freshness to prevent the corruption of the crops by maintaining a low temperature suitable for storing the crops.

However, when a simple low temperature storage of crops is exposed to bacteria contained in the crops or bacteria contained in the air, crops may be damaged or lose freshness.

The present invention sterilizes crops by maintaining the inside of the cold store with a high concentration of ozone for a certain period of time when the crops are first received in a cold store, and sterilizes the inside of the store by periodically maintaining a low concentration of ozone for a certain time until the storage is completed. It is to be kept as it is.

The present invention is to install an ozone generator to generate ozone inside the cold storage, install an ozone remover to suction and reduce the ozone inside the cold storage, the ozone generator in the controller after detecting the ozone concentration in the cold storage by the ozone sensor And by controlling the operation of the ozone remover.

1 is a block diagram showing an embodiment of the present invention

[Explanation of symbols on the main parts of the drawings]

1: cold storage 2: bottom plate

3: cooler 4: humidifier

10: crop 20: ozone generator

30: ozone remover 40: ozone sensor

50: controller

In the present invention, the cooler (3) and the humidifier (4) is installed in a low temperature reservoir (1) in an enclosed space, installed in the low temperature reservoir (1) and converts into ozone after sucking the internal air to convert into ozone A generator 20, an ozone remover 30 for sucking and reducing ozone present in the cold storage 1 and discharging it into the internal space, an ozone sensor 40 for detecting ozone concentration in the cold storage 1, The controller 50 is configured to control the ozone concentration in the cold storage 1 by driving the ozone generator 20 and the ozone remover 30 according to the detection result of the ozone sensor 40.

Here, the controller 50 maintains the internal ozone concentration at a high concentration of 200 to 500 ppm for about 1 hour when the stored goods are stored in the low temperature warehouse 1, and then removes ozone and maintains a low concentration of 50 ppm in 10 hour increments until the storage is completed. It is configured to control the operation of the ozone generator 20 and the ozone remover 30 to remove ozone after each minute.

The cold storage 1 is provided with an entrance and exit for the entry of the crop 10, the bottom of the cold storage 1 is provided with a bottom plate (2) free air flow.

Although the ozone generator 20 and the ozone remover 30 of the present invention are installed under the bottom plate 2, they do not necessarily need to be installed under the bottom plate 2, and are installed at appropriate positions inside the cold storage 1. do.

The controller 50 is suitable to be installed outside the low temperature reservoir 1 so that the controller 50 can be controlled from the outside, and an ozone sensor 40 for detecting the concentration of ozone is installed inside the low temperature reservoir 1.

In the present invention, when the crop 10 is put into the first cold storage 1, the ozone generator 20 is operated after closing the entrance and filling the inside of the cold storage 1 with ozone, but the cold storage 1 By maintaining the internal ozone concentration of 200 to 500ppm state and maintaining the above-described high concentration state for about 1 hour, to sterilize the crop 10 by ozone.

The crop 10 received in the cold storage 1 is sterilized by ozone at a high concentration (200 to 500 ppm), so that long-term storage is possible.

When ozone is generated in the ozone generator 20, a locker should be provided at the entrance so that the worker cannot enter or exit the cold storage 1.

Preferably, if the ozone is excessively detected in the cold storage 1 by the ozone sensor 40 in the controller 50, it is suitable to prevent the entrance from being opened.

When sterilization is completed by ozone when the crop 10 is received, the ozone remover 30 sucks the internal ozone to reduce the ozone in the cold storage 1.

Here, the ozone remover 30 is made of an activated carbon filter and reduces the ozone inside the cold storage 1 because it reduces 99% of the ozone inhalation, and the ozone concentration inside the cold storage 1 may be harmless to the human body. When the degree is enough to allow the opening of the cold storage (1).

In this way, after sterilization by high concentration of ozone when the crop 10 is received, the ozone generator 20 is operated at an interval of about 10 hours so that the ozone concentration of the low temperature reservoir 1 is about 50 ppm, which is about 5 to 10 minutes. After maintaining the degree to operate the ozone remover 30 again to remove the ozone.

That is, the ozone generator 20 is operated for 5 to 10 minutes in 10 hours to maintain the ozone concentration of 50 ppm, and then removes ozone. The periodic generation of low ozone flows into the low temperature reservoir 1. This is to ensure long-term storage of crops by sterilizing the air.

The present invention is capable of long-term storage of the crops and maintaining freshness by sterilizing the crops stored in the cold storage using ozone.

Claims (2)

In a low temperature reservoir (1) in which a cooler (3) and a humidifier (4) are installed in an enclosed space, an ozone generator (20) installed in the low temperature reservoir (1) and converting the internal air into ozone and forcibly discharging it into the internal space (20). ), An ozone remover (30) for sucking and reducing ozone present in the cold storage (1) and discharging it into the internal space, an ozone sensor (40) for detecting an ozone concentration in the cold storage (1), and the ozone Low temperature using ozone, characterized in that it is provided with a controller 50 for adjusting the ozone concentration in the cold storage 1 by driving the ozone generator 20 and the ozone remover 30 according to the detection result of the sensor 40. Storage. In claim 1, the controller 50 maintains the internal ozone concentration at a high concentration of 200 to 500 ppm for about 1 hour when the stored goods are received in the low temperature reservoir 1, and then removes the ozone. A low temperature reservoir using ozone configured to control the operation of the ozone generator 20 and the ozone remover 30 to remove ozone after maintaining low concentrations for 5 to 10 minutes.