KR102555868B1 - Agricultural and Fishery Products Cold Storage - Google Patents

Abstract

The present invention relates to a low-temperature storage of agricultural and marine products, and specifically, to maintain the state at the time of harvest while storing the harvested agricultural and fishery products at a low temperature until shipment or while waiting for shipment, and at the same time, to prevent spoilage during the storage period It relates to cold storage of agricultural and fishery products.
According to the low-temperature storage for agricultural and marine products of the present invention, the agricultural and marine products are automatically stored at a low temperature so that the agricultural and marine products can be maintained at the time of harvest by blowing, heating and cooling, and the freshness of the stored agricultural and marine products is maintained by automatically blowing, defrosting, refrigerating and heater defrosting according to the set temperature. There are excellent effects that can be achieved.

Description

Agricultural and Fishery Products Cold Storage}

The present invention relates to a low-temperature storage for agricultural and marine products, and more specifically, to maintain the state at the time of harvest while storing the harvested agricultural and marine products at a low temperature until shipment or while waiting for shipment, and to prevent spoilage during the storage period. It relates to cold storage of agricultural and fishery products.

Demand for distribution of fresh food is increasing in accordance with the improvement of consumer's dietary life and demand for various foods following economic development. Demand for cold storage is increasing.

The cold storage is a facility that has the function of preserving the stored products fresh for a long period of time by cooling the inside of the room, which is an insulated space, to keep them above the freezing point (0 ℃), and consists of compression, condensation, expansion, and evaporation of In terms of applying the refrigeration cycle, the technical principle is the same as air conditioning heating and cooling, freezers or large freezer warehouses, but there are differences in detailed devices, structures, and control methods depending on the characteristics of the target to be applied.

In the refrigeration warehouse or freezer, if the stored product is frozen and stored at a temperature below the freezing point, the quality of the stored product is rarely deteriorated.

However, in the low-temperature storage, various types of agricultural and marine products with different characteristics must be stored at a temperature above the freezing point, and in the case of agricultural products in particular, they must be kept fresh in a living state. If it is not managed precisely, it causes low temperature damage due to excessive cooling and deterioration due to respiratory physiology, and in some cases, a 10 to 30% weight loss occurs, which increases the distribution cost of fresh food.

In addition, small and medium-sized cold storages are no different from general household refrigerators or large warehouse type cold storages in terms of storing fresh food, but due to the characteristics of maintaining temperature and humidity precision and uniformity within a relatively large space, appropriate facilities and control algorithms are required. It is different from household refrigerators in that it is a large warehouse that can apply high-efficiency management technologies such as a flooded liquid pump system and cold air supply through ducts, including a centralized and precise control method using a computer There is also a difference with the type cold storage.

Because small and medium-sized low-temperature storages are used for industrial or commercial purposes, they require a higher level of temperature and humidity uniformity and precision than general household refrigerators.

In addition, since it operates independently on a small scale in areas where it is difficult to have expertise in freezers, such as producers in the agricultural, livestock and fisheries industries, markets, and group catering establishments, safe use and management and maintenance of the quality of stored products are controlled by automatic operation control without professional operating knowledge. management skills are required.

Republic of Korea Patent No. 10-2005776

The present invention was invented to solve the above problems, and its purpose is specifically to maintain the state at the time of harvest while storing the harvested agricultural and marine products at a low temperature until shipment or while waiting until the time of shipment, and at the same time, the storage period The purpose is to provide a low-temperature storage for agricultural and marine products that can prevent spoilage during the process.

The present invention for achieving the above technical problem is a housing 110 in which a receiving space is formed therein and a door 111 is coupled to the outside; A drive motor 120 fixedly installed on the inner bottom surface of the housing 110; a tray 130 coupled to the rotational shaft 121 of the drive motor 120 and on which harvested agricultural and marine products can be placed; An air conditioner 140 for maintaining the agricultural and marine products on the tray 130 at a low temperature; A blower 150 for discharging air containing moisture while being dried in the housing 110 to the outside air or guiding the outside air to the inside; Two or more ultrasonic sterilizing water sprayers 160 provided on the inner surface of the housing 110 and periodically spraying chlorine dioxide water; and a controller 170 inside the housing 110 to control the rotational speed of the drive motor 120, the spray interval of the ultrasonic sterilizing water sprayer 160, and the temperature control of the air conditioner 140. However, the tray 130 is composed of 65 to 70% by weight of silica stone, 20 to 25% by weight of clay, 3 to 4% by weight of nitrous acid, 3 to 4% by weight of boric acid, and 1 to 2% by weight of magnesium carbonate, The chlorine dioxide water sprayed from the ultrasonic sterilizing water injector 160 has a concentration of 20 to 30 ppm, and the controller 170 controls the blower 150 according to the internal temperature of the housing 110, , It is characterized in that the air conditioner 140 is operated according to the season to maintain the internal temperature of the housing 110 at a constant temperature.

In one embodiment, the tray 130 is characterized in that it is formed in a mesh shape so that the air inside the housing 110 can be smoothly circulated.

According to the low-temperature storage for agricultural and marine products of the present invention, the agricultural and marine products are automatically stored at a low temperature so that the agricultural and marine products can be maintained at the time of harvest by blowing, heating and cooling, and the freshness of the stored agricultural and marine products is maintained by automatically blowing, defrosting, refrigerating and heater defrosting according to the set temperature. There are excellent effects that can be achieved.

In addition, since it can be used regardless of the season, there is an effect of improving productivity by significantly reducing frozen agricultural and marine products, especially during the winter season.

In addition, it has a relatively simple configuration and is equipped with various functions, and in particular, because the configuration is simple, it can be manufactured at a low price, and there is an effect that it can be supplied to rural areas and fishing villages at a low price.

1 is a view schematically showing the appearance of a low-temperature storage for agricultural and marine products.
Figure 2 is a side view of Figure 1;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, detailed descriptions of preferred embodiments of the present invention will be described with reference to the accompanying drawings. It should be noted that like elements in the drawings indicate like reference numerals wherever possible. Specific details are set forth in the following description, which are provided to facilitate a more general understanding of the present invention. And, in describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description will be omitted.

The terms used in this specification have been selected from general terms that are currently widely used as much as possible while considering the functions in the present invention, but they may vary depending on the intention or precedent of a person skilled in the art to which the present invention belongs, the emergence of new technologies, and the like. there is. In addition, in a specific case, there is also a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the present invention. Therefore, the term used in this specification should be defined based on the meaning of the term and the overall content of this specification, not a simple name of the term.

Terms such as first or second may be used to describe various components, but the components should not be limited by the terms. The above terms are used only for the purpose of distinguishing one component from another, e.g. without departing from the scope of rights according to the concept of the present invention, a first component may be termed a second component and similarly a second component may be termed a second component. A component may also be referred to as a first component.

It is understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, but other elements may exist in the middle. It should be. On the other hand, when a component is referred to as “directly connected” or “directly connected” to another component, it should be understood that no other component exists in the middle. Other expressions describing the relationship between components, such as "between" and "directly between" or "adjacent to" and "directly adjacent to", etc., should be interpreted similarly.

Terms used in this specification are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, terms such as "comprise" or "having" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in this specification, but one or more other features It should be understood that it does not preclude the possibility of the presence or addition of numbers, steps, operations, components, parts, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in this specification, it should not be interpreted in an ideal or excessively formal meaning. don't

Hereinafter, a low-temperature storage for agricultural and marine products of the present invention will be described in detail by describing preferred embodiments of the present invention with reference to the accompanying drawings.

1 is a schematic view of an agricultural and fishery product cold storage, and FIG. 2 is a side view of FIG. 1 .

Prior to the description, agricultural and marine products referred to in the present invention are described for agricultural products harvested in rice fields and fields and fish harvested in the sea, for example, agricultural products such as potatoes, carrots and sweet potatoes, and aquatic products such as saury, cod, and herring can be cited as an example.

1 and 2, the low-temperature storage for agricultural and marine products of the present invention is provided with a housing 110 capable of accommodating agricultural and marine products. The housing 110 is formed in a substantially rectangular column shape, and a control unit 170, a blower 150, etc., which will be described later, are provided on one side of the exterior, through which agricultural and marine products inside the housing 110 can be stored and stored in a comfortable environment. function to do so. In addition, the door 111 is coupled to another side of the exterior, so that agricultural and marine products can be taken in and out through the door 111.

On the other hand, the drive motor 120 is provided on the inner bottom surface of the housing 110, and the rotation shaft 121 is coupled to the drive motor 120. The rotating shaft 121 is provided with a tray 130 for placing the harvested agricultural and marine products on top and maintaining them at a low temperature. The driving motor 120 rotates in a forward or reverse direction and functions to uniformly maintain agricultural and marine products placed on the tray 130 at a low temperature.

On the other hand, the tray 130 is composed of a composition ratio of 65 to 70% by weight of silica stone, 20 to 25% by weight of clay, 3 to 4% by weight of nitrous acid, 3 to 4% by weight of boric acid, and 1 to 2% by weight of magnesium carbonate. In addition, the tray is constructed in the form of a mesh so that a plurality of ventilation holes are formed, and a far-infrared radiation layer is enamel-coated on the outer surface so that a large amount of far-infrared rays can be continuously emitted. In particular, the far-infrared ray emitting layer is composed of silica stone (SiO2) powder, which is a far-infrared ray emitting material, and clay powder, which are mixed with more than 90% of the main raw material, and nitrous acid (nano3) and boric acid ( B2O3) and magnesium carbonate (Mgco3) are added.

That is, it is preferable to achieve a mixing ratio of 65 to 70% by weight of silica stone, 20 to 25% by weight of clay, 3 to 4% by weight of nitrous acid, 3 to 4% by weight of boric acid, and 1 to 2% by weight of magnesium carbonate. 10Kg of silica, 6Kg of clay, 200g of nitrous acid, 250g of boric acid, and 200g of magnesium carbonate were mixed with a large amount of water and glaze and applied to the surface of the tray 130 to form a far-infrared radiation layer. Therefore, when warm air is supplied through an air conditioner to be described later, far-infrared rays are radiated. In addition, the tray 130 is made in the form of a disk so that the far-infrared radiating area can be maximized within a range that does not reduce the air permeability by the ventilation hole, and the far-infrared ray emitting layer is formed in a symmetrical manner on the bottom as well as the upper surface, so that the far-infrared ray It is possible to increase the effect of low-temperature or constant-temperature storage of agricultural and marine products by radiation.

Meanwhile, an air conditioner 140 for maintaining agricultural and marine products on the tray 130 at a low temperature is installed on the bottom surface of the housing 110 . It is preferable that two or more air conditioners 140 are installed to maintain the low temperature of agricultural and marine products in the tray 130. The role of the air conditioner 140 is to supply cold air in the summer season and warm air in the winter season by the control unit 170 to be described later to maintain a comfortable environment (drying and humidifying) the agricultural and marine products inside the housing 110. To prevent spoilage of the agricultural and marine products keep the temperature low

On the other hand, while drying in the housing 110, the air containing moisture is discharged to the outside air or a blower 150 for guiding the outside air to the inside is provided. The blower 150 is operated by a controller 170 to be described later according to the internal temperature of the housing 110, and is operated when the humidity inside the housing 110 is high or exceeds a set temperature in conjunction with the air conditioner 140 described above. It serves to discharge the inside air to the outside.

On the other hand, two or more doedoe provided on the inner surface of the housing 110, an ultrasonic sterilizing water sprayer 160 in which chlorine dioxide water is sprayed periodically is installed on the inner wall surface. In the ultrasonic sterilizing water sprayer 160, sterilizing water constituting 20 to 30 ppm of chlorine dioxide is sprayed. The reason for using chlorine dioxide in this way is that the sterilization effect is excellent and the number of aerobic bacteria and mold can be minimized, and the human body Because it is harmless to water, it prevents spoilage of agricultural and marine products. The ultrasonic sterilizing water injector 160 is not always operated, and is sprayed according to a set time period. In particular, since the freshness of agricultural and marine products may decrease or rot in the summer season, it is preferable to set the spray frequently compared to the winter season. Here, as the sterilizing water, electrolyzed water may be used in addition to chlorine dioxide water. In the case of electrolyzed water, it is composed with a salinity of 80 to 150 ppm and used only for storage and distribution of agricultural products, which is to prevent quality deterioration due to osmosis. Since sterilization water having 0.1% of chlorine dioxide is diluted 300 to 500 times and applied to such electrolyzed water, the sterilization efficiency of agricultural products can be further improved.

On the other hand, the inside of the housing 110 is provided with a controller 170 for controlling the rotational speed of the driving motor 120, the spraying interval of the ultrasonic sterilizing water sprayer 160, and the temperature control of the air conditioner 140. . The control unit 170 controls the blower 150 according to the internal temperature of the housing 110, but operates the air conditioner 140 according to the season to maintain the internal temperature of the housing 110 at a constant temperature. . To this end, since the installation of a temperature sensor (not shown) for detecting temperature and a humidity sensor (not shown) for detecting humidity are self-evident facts, detailed operational relationships thereof will be omitted.

Hereinafter, the operating state of the low-temperature storage for agricultural and marine products of the present invention configured as described above will be described.

The cold storage for agricultural and marine products of the present invention can be used in both rural and fishing villages, and its operation relationship is to operate the air conditioner 140, the ultrasonic sterilizing water sprayer 160, and the blower 150 at an appropriate time according to the speed of decay and the storage period. Each embodiment is omitted and only a representative operation will be described.

First, the worker is to wash the harvested agricultural and marine products with clean water, and then put them on the top of the tray 130 to dry them naturally by air for a predetermined time.

Thereafter, when the door 111 is closed and power is applied after drying to a certain extent, the drive motor 120 alternately rotates in the forward (clockwise) and reverse directions according to the set value. For example, rotation of the drive motor 120 is rotated in the forward direction for a predetermined time and in the reverse direction for a predetermined period of time, and it is preferable to set the same number of rotations in the forward and reverse directions. In this way, while the tray 130 rotates, the temperature inside the housing 110 is maintained at a low temperature. At this time, the internal temperature of the low temperature storage is preferably maintained at 2° C. to 4° C. Maintaining the low temperature in this way reduces the preservation quality because if the temperature inside the housing 110 is not uniform, some of the stored goods are subjected to frost damage and some are exposed to high temperatures. Therefore, the temperature and humidity uniformity must be maintained at a higher level than that of general household refrigerators, and after temperature stabilization, the deviation between the highest and lowest temperatures is at least *? The setting value must be set to be maintained. Moreover, agricultural products that keep agricultural and marine products in a fresh state are required to be precisely controlled within 0.5 ° C. in order to maintain the optimum storage temperature. Therefore, the minimum temperature difference between the set temperature and the inside of the room must be maintained within ***°C during normal operation and within ***°C during defrosting.

In the case of the cold storage for agricultural and fishery products of the present invention, since most of the cases are installed and operated outdoors or in a location close to the outdoors, it is preferable to operate the above temperature setting especially in the summer season. On the contrary, in the winter season, the outdoor temperature is lowered below zero or close to zero, so at this time, it is set to maintain the internal temperature at a constant temperature using outside air.

On the other hand, when the driving motor 120 rotates according to the set time by the above operation, chlorine dioxide water is periodically sprayed by the ultrasonic sterilizing water sprayer 160. When spraying, water droplets of small particles are sprayed like fog, and these water droplets are buried on the surface of agricultural and marine products to play a role in sterilizing and preventing the agricultural and marine products placed on the tray 130 from spoiling.

As this operation is continuously maintained, the temperature inside the housing 110 is maintained, and when the temperature is higher than the set temperature, the blower 150 operates to discharge the increased air inside, and at the same time, the air conditioner 140 operates to discharge cold air. do. At the same time, if the temperature inside the housing 110 increases, the chlorine dioxide water can be set to be sprayed through the ultrasonic sterilizing water sprayer 160 because the spoilage of agricultural and marine products may occur. Here, the chlorine dioxide water is set to be periodically discharged by a set value, but it is possible to set the blower to operate and spray the chlorine dioxide water in preparation for the above exceptional situation.

That is, to summarize the above operation, when the internal temperature of the low temperature storage is higher than the set temperature, the air conditioner 140 performs cooling and blowing by the control unit 170, and when the set temperature is reached, cooling is stopped and only blowing is performed. When it is below the temperature, the heater is operated to automatically maintain the set temperature. Therefore, agricultural and marine products stored in the cold storage can be stored in a fresh state and sold to consumers.

The embodiment of the agricultural product processing system of the present invention described above is only exemplary, and those skilled in the art can easily convert it into other specific forms without changing the technical spirit or essential features of the present invention. It will be appreciated that variations are possible. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims rather than the detailed description above, and all changes or modifications derived from the meaning and scope of the claims and equivalent concepts should be construed as being included in the scope of the present invention. something to do.

110: housing 111: door
120: drive motor 121: rotation shaft
130: tray 140: air conditioner
150: blower 160: ultrasonic sterilizing water sprayer
170: control unit

Claims (2)

A housing 110 having a receiving space formed therein and having a door 111 coupled thereto;
A drive motor 120 fixedly installed on the inner bottom surface of the housing 110;
a tray 130 coupled to the rotational shaft 121 of the drive motor 120 and on which harvested agricultural and marine products can be placed;
An air conditioner 140 for maintaining the agricultural and marine products on the tray 130 at a low temperature;
A blower 150 for discharging air containing moisture while being dried in the housing 110 to the outside air or guiding the outside air to the inside;
Two or more ultrasonic sterilizing water sprayers 160 provided on the inner surface of the housing 110 and periodically spraying chlorine dioxide water; and
Inside the housing 110, the control unit 170 controls the rotational speed of the driving motor 120, the spraying interval of the ultrasonic sterilizing water sprayer 160, and the temperature control of the air conditioner 140; ,
The tray 130 is composed of 65 to 70% by weight of silica stone, 20 to 25% by weight of clay, 3 to 4% by weight of nitrous acid, 3 to 4% by weight of boric acid, and 1 to 2% by weight of magnesium carbonate,
The chlorine dioxide water sprayed from the ultrasonic sterilizing water sprayer 160 has a concentration of 20 to 30 ppm.
The control unit 170 controls the blower 150 according to the internal temperature of the housing 110, but operates the air conditioner 140 according to the season to set the internal temperature of the housing 110 to a certain temperature. Cold storage for agricultural and marine products, characterized in that for maintaining According to claim 1,
The tray 130,
Cold storage for agricultural and marine products, characterized in that it is formed in a mesh form so that the inner air of the housing 110 can be smoothly circulated

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