KR20190096584A - Deodorization and sterilization control apparatus of low temperature warehouse using radicals - Google Patents

Abstract

The present invention relates to a deodorization and sterilization control apparatus of a low temperature warehouse to maintain optimal storage condition of products by sterilizing the stored food of the low temperature warehouse through plasma-based radical generation and removing the odor generated therefrom. To this end, the deodorization and sterilization control apparatus of a low temperature warehouse using radicals of the present invention comprises a door sensor and a human body sensor installed in the door and the inside of the low temperature warehouse respectively; a controller for outputting a plasma generation control signal computed in accordance with the input value of set value input unit and the input value of the human body sensor and the door sensor to the driver; a plasma generator for generating plasma by the driver; a radical generator for generating a radical according to the quintuplex photocatalytic oxidation reaction by irradiating the wavelength of light generated in the plasma generator to TiO_2, Rh, Ag, Ni, and Cu; and a cyclone generator for remotely transmitting the radical, after dust collecting filtration, generated in the radical generator.

Description

Deodorization and sterilization control apparatus of low temperature warehouse using radicals}

The present invention relates to a control device for sterilizing stored foods in a low temperature warehouse through plasma-based radical generation and removing odors generated from them to maintain an optimal product storage state. The present invention relates to a deodorization and sterilization control device for a low temperature warehouse using radicals that automatically perform deodorization and sterilization and track an error point when a failure occurs to generate an alarm.

Generally, storage warehouses are equipped with a cooling system for long-term low-temperature storage of the stored products for safe storage and freshness of various agricultural and livestock products, seafood, food, medicine, liquor, and plant seeds stored in the warehouse. Temperature controllers are provided to select and maintain the optimal storage temperature for each storage product.

In such cold storage, the flow of internal air is very important. If the internal air flow is not smooth, it will be difficult to maintain the freshness of the stored goods for a long time, so a lot of consideration is taken into the internal air flow when designing a cold storage warehouse.

In general, the structure of the cold storage warehouse is almost the same as the height of the road regardless of the height of the warehouse, the refrigeration unit is installed at the upper end of the warehouse and the ventilation fan is also installed at the upper end of the warehouse is configured for natural ventilation. In this case, the refrigeration unit is generally installed inside the low temperature warehouse in consideration of the cooling efficiency, in which case it is not easy to maintain a constant cooling distribution in the warehouse through the natural circulation of the internal cooling air.

For example, the cold air generated in the refrigerating device is lowered, so that the temperature of the lower part of the warehouse is low and the temperature of the upper part thereof is high, so that moisture condensation occurs in the area of the lower part of the warehouse.

The generated moisture accelerates the deterioration rate of the stored product, which leads to rapid decay, and, conversely, the storage product loaded in the upper area of the warehouse causes premature drying and dehydration due to the high ambient temperature.

The above problem occurs because the convection of cold and hot air is very slow, and it is impossible to maintain the same temperature and humidity as a whole, and even if the convection is strongly forced, it cannot flow to the bottom of the reservoir. In addition to the increase, there is a problem of damaging the storage goods by the strong air flow caused by the strong convection.

On the other hand, if the products stored in the cold storage are fresh foods such as vegetables, seafood or fruits, the temperature in the storage warehouse is not extremely low, so the growth of various bacteria is high and various kinds of odors are caused by the growth of various bacteria. Is easily generated.

Ventilation and sterilization should be performed at regular intervals related to warehouse storage quantity to remove the deterioration and odor of the storage products caused by bacterial propagation in the storage warehouse. If a frequent ventilation is performed, it may cause deterioration of the stored goods due to the change of temperature conditions in the warehouse due to the ventilation, and it is also expensive to maintain the normal temperature of the cold storage warehouse.

The present invention is to solve the problems of the conventional low-temperature warehouse as described above, an object of the present invention is to sterilize the food stored in the low-temperature warehouse through the generation of plasma-based radicals and to remove the odor generated from them to optimize the optimal storage state It is to provide a control device for deodorization and sterilization of low temperature warehouses using radicals that maintains and traces the failure points when a low temperature warehouse breaks down.

Deodorization and sterilization control device of a low temperature warehouse using the radical of the present invention for achieving the above object is a door sensor and a human body sensor installed in the door and the inside of the low temperature warehouse, and input values and settings of the door sensor and the human body sensor A controller for outputting a plasma generation control signal computed according to an input value of a value input unit to a driver, a plasma generator for generating plasma by the driver, and wavelengths of light generated by the plasma generator, TiO ₂ , Rh, Ag It is characterized by consisting of a radical generator for generating a radical according to a five-photocatalytic oxidation reaction by irradiation with Ni, Cu, and a cyclone generator for remotely sending the generated radicals from the radical generator after filtering.

The present invention generates long-lived radicals by irradiating a plasma beam wavelength to a photocatalyst such as TiO ₂ and volatilizes it into the atmosphere in a low temperature warehouse using a blower fan, thus efficiently deodorizing and sterilizing the warehouse over a wide range. It can be carried out.

The low temperature warehouse sterilization and deodorization technology of the radical blowing method can solve the problem of adsorption bacteria in the suction filter which is exhibited in the sterilization and deodorization method through the conventional air suction, thereby increasing the sterilization effect.

In addition, the radical blowing method of the present invention can directly project radicals to a specific location such as a wall or a ceiling that requires sterilization or deodorization, and thus can perform intensive sterilization of a sterilization target area or part.

In addition, the communication module added to the deodorization and sterilization control device of the cold storage using the radical of the present invention enables the remote manager to check the deodorization and sterilization execution information and status of the cold storage and remotely generate radicals for sterilization and deodorization if necessary. Control can be performed to facilitate the management of low temperature warehouses.

1 is a block diagram of an apparatus for controlling deodorization and sterilization of a cold store using the radical of the present invention.
2 is a flowchart illustrating the radical generation process of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings.

1 is a block diagram of an apparatus for controlling deodorization and sterilization of a cold store using the radical of the present invention.

As referred to herein, the door opener 18 and the human body sensor 19 are installed in the entrance door and the interior of the low temperature warehouse, respectively, so that the door open signal and the human body detection signal respectively detected by the door sensor and the human body sensor are controlled by the controller ( 10) to be applied.

The door sensor 18 may be configured as an on / off contact switch, and the human body sensor 19 may use a superconducting sensor or an infrared sensor.

The controller 10 is connected to a setting input value of the setting value input unit 11 which can input a radical generation cycle or the like as a time value. In addition to the radical generation on / off time input value, the set value input unit 11 may set an activation event period value, an alarm value, a gas sensor sensing concentration reference value, etc. of the communication module to be input to the controller 10. .

The controller 10 is connected to an odor sensing value such as ammonia gas or hydrogen sulfide gas detected by the gas sensor 17, and is processed by the controller and compared with the sensing concentration reference value registered by the setting value input unit. When the reference value is reached, the control signal for driving the radical generator 14 is connected to the driver 12 so as to be output.

The radical generator 14 is configured to irradiate the photocatalyst with the wavelength of the plasma beam generated by the high temperature or high voltage in the plasma generator 13 to generate long-lived radicals that are not easily extinguished through the oxidation reaction. As the TiO ₂ , Rh, Ag, Ni, Cu can be used.

The radicals generated in the radical generator are configured to be projected by the cyclone generator 15 to form a whirlwind in which the surrounding air is drawn and discharged to a far-field region of a cold storage warehouse by being carried in a carrier radiation wind volume, and the radicals generated in the radical generator. Contaminants including dust contained in the introduced air when the adjacent air is drawn from the cyclone in order to project and discharge the dust are collected in the dust collecting part 16 while passing through the cyclone generator 15 and are contained in the circulating air in the storage warehouse. Make up this strain.

On the other hand, the controller 10 is an odor detected by the gas sensor 17 and the event value for the series of sensing information according to the sensing of the door sensor 18 and the human body sensor 19 in the internal memory (not shown), respectively. The event value for the sensing information is stored, and the stored information for each event in the memory is a communication module in addition to the value (for example, a radical generation on / off time input value set by the setting value input unit 11 described above). Activation event period value, alarm value, gas sensor sensing concentration reference value, etc.) and the wireless module via the communication module 21 is configured to wirelessly transmit, and also the remote control signal of the low temperature warehouse by the remote manager The module can be configured to be sent to the controller for execution, enabling unmanned cold storage management.

Referring to the operation of the present invention configured as described above in detail.

First, when an administrator opens a door to enter a low-temperature warehouse, a switch contact of the door sensor 18 installed at the door is generated, so that the controller 10 generates a driver output to stop plasma generation and radical generation. Control blocking. In addition, the controller 10 similarly limits generation of plasma or the like even when human body sensing information is input by the human body sensor 19. This not only prevents the possibility of plasma or radicals on the human body of the manager or worker who entered the low temperature warehouse, but also reduces the energy efficiency due to inefficient radical generation and volatilization due to the opening of the door of the storage warehouse. To prevent them.

The gas parser 17 may be used as a means for detecting a deodorizing operation condition. Odor in the warehouse is due to the gas generated by the reaction of food and organisms in the storage and oxygen, and ammonia gas and hydrogen sulfide gas are representative.

The controller 10 calculates and processes a gas detection input value from the gas sensor 17 which reacts mainly to ammonia gas and hydrogen sulfide gas, and compares the result with a reference value set by the setting value input unit 11 to determine whether odor has occurred. When the odor occurs, if the automatic control mode is selected by the set value input unit 11, the operation of the plasma generator 13 and the radical generator 14 is immediately controlled to volatilize the radicals into the storage warehouse. Deodorization (including sterilization) is performed.

To this end, the controller 10 detects an event value and a gas sensor 17 for a series of sensing information according to sensing of the door sensor 18 and the human body sensor 19 in an internal memory (not shown). The event value for the odor sensing information is stored, and the stored information for each event in the memory is a radical generation on / off time input value which is a value registered and set by the setting value input unit 11, an activation event cycle value of the communication module, With the alarm value, gas sensor sensing concentration reference value, etc., the remote manager can be wirelessly transmitted through the communication module 21, thereby removing the burden of having to reside in a cold warehouse site.

In addition, it is possible to remotely control the deodorization and sterilization of the cold storage by the remote manager, thereby enabling the unmanned management of the cold storage warehouse.

On the other hand, automatic deodorization in the low-temperature warehouse can be carried out by monitoring the occurrence of odor in real time using the gas sensor 17, but automatic sterilization is difficult to monitor the outbreak or spread of bacteria in real time, the set value input unit 11 Depending on the tie setting value of), it will be executed aperiodically or periodically.

If odor occurs due to the decay of food or organisms due to the spread of bacteria in the warehouse, the gas sensor 17 will detect this, so that automatic sterilization and deodorization is performed.

2 is a flowchart illustrating a radical generation control process by the controller 10, in which a high voltage (or high temperature) is applied to the plasma generator in order for the controller 10 to operate the plasma generator 13 through the driver 12. Plasma is generated here, and at this time, TiO ₂ , Rh, Ag, Ni, and Cu catalysts are introduced into the radical generator to irradiate the five photocatalysts with the beams generated by the plasma generator. Radicals are produced.

The plasma generator is sufficient to generate a beam of a specific wavelength range effective for the photocatalyst for the purpose of radical generation, so it is possible to replace the plasma generator with a broadband lamp that generates the beam of the wavelength range.

The radicals thus produced are of atomic form and have very good bactericidal properties. This is because sterilizers of air purifiers known to this day are sterilized by suction of ambient air, so that the bacteria accumulated in the filter are sterilized by the inhalation filtering air with foreign substances accumulated during the inhalation filtering of the surrounding air trapped in the filter. Although it has a disadvantage in that it is not sterilized and maintains a survival state, the present invention is able to sterilize the air in the atmosphere or the storage room almost completely since sterilization is performed by the atmospheric volatilization method.

After that, the radicals generated in the radical generator are volatilized to a high speed in the storage warehouse through a cyclone generator for long distance delivery of the radicals after filtering.

Indeed, the radicals generated in the radical generator are blown to the far region of the cold storage and volatilized in the cyclone generator 15 in the form of a whirlwind in which the cyclone generator 15 draws in the surrounding air.

When a cyclone generator generates a carrier cyclone for volatilizing the radicals generated from the radical generator to a long distance, the ambient air is drawn in. At this time, contaminants in the storage warehouse contained in the introduced air pass through the cyclone generator and the dust collector ( 16), dust collection of suspended pollutants in the cold warehouse extracted during the cyclone generation and blowing process can be removed by a simple process of separating and extracting the cold warehouse. I can clean my air.

10: controller
11: set value input unit
12: driver
13 plasma generator
14: radical generator
15: cyclone generator
16: dust collector
17 gas sensor
18: door sensor
19: human body sensor
20: alarm unit
21: communication module

Claims (5)

A door sensor and a human body sensor installed inside and outside the low-temperature warehouse, and a controller for outputting a plasma generation control signal processed to the driver according to the input values of the door sensor and the human body sensor and the input value of the set value input unit. A plasma generator for generating plasma by the driver, a radical generator for generating radicals according to a five-photocatalytic oxidation reaction by irradiating TiO ₂ , Rh, Ag, Ni, and Cu to the wavelength of light generated by the plasma generator; , Deodorization and sterilization control device of a cold warehouse using radicals, characterized in that composed of a cyclone generator for remotely transmitting the dust generated in the radical generator after filtering. The method of claim 1, wherein the controller comprises a communication module for supporting a remote control mode to allow the administrator to receive and confirm the deodorization information and sterilization information of the cold storage at the remote site as an event value and to select a control mode. Deodorization and sterilization control device of low temperature warehouse using radicals. The apparatus for controlling deodorization and sterilization of a cold store using radicals according to claim 1, wherein the amount of radicals generated by the radical generating unit is configured to be adjusted to a time value of a set value input unit. The apparatus of claim 1, wherein the controller further comprises a gas sensor for detecting odor generation in a cold warehouse for controlling automatic generation of radicals. 5. The apparatus for controlling deodorization and sterilization of a cold store using radicals according to claim 4, wherein the gas sensor is a sensor for detecting ammonia gas or hydrogen sulfide gas.

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