KR101831653B1 - Apparatus for sterilization - Google Patents

Apparatus for sterilization Download PDF

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Publication number
KR101831653B1
KR101831653B1 KR1020160029057A KR20160029057A KR101831653B1 KR 101831653 B1 KR101831653 B1 KR 101831653B1 KR 1020160029057 A KR1020160029057 A KR 1020160029057A KR 20160029057 A KR20160029057 A KR 20160029057A KR 101831653 B1 KR101831653 B1 KR 101831653B1
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KR
South Korea
Prior art keywords
chamber
pressure
valve
sterilizing
sterilizing water
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KR1020160029057A
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Korean (ko)
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KR20170105857A (en
Inventor
장정수
이광희
이문현
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이광희
이문현
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Priority to KR1020160029057A priority Critical patent/KR101831653B1/en
Publication of KR20170105857A publication Critical patent/KR20170105857A/en
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    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L5/00—Preparation or treatment of foods or foodstuffs, in general; Food or foodstuffs obtained thereby; Materials therefor
    • A23L5/20—Removal of unwanted matter, e.g. deodorisation or detoxification
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
    • A23L3/005—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs by heating using irradiation or electric treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K13/00—Other constructional types of cut-off apparatus; Arrangements for cutting-off

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  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)

Abstract

Disclosed is a sterilizing apparatus and method for abruptly reducing the pressure of a subject to be sterilized in a high-pressure environment without heating the subject. The sterilizing device includes a chamber having a sterilizing water inlet for introducing the sterilized water and a sterilizing water outlet for discharging the sterilized water and having an opening communicating with the inside and the outside, A first valve for controlling an inflow amount of the sterilizing water to the sterilizing water inflow port, a second valve for controlling the sterilizing water discharge amount through the sterilizing water outlet, and a second valve disposed in the chamber, And a door that opens and closes the opening.

Description

[0001] Apparatus for sterilization [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizing apparatus and method, and more particularly, to a sterilizing apparatus and method for sterilizing a subject to be sterilized by rapidly reducing pressure in a high-pressure environment.

Generally, sterilization is a method of sterilizing a microorganism by physically or chemically stimulating it in a short period of time. The sterilization is classified into sterilization in which the object is completely sterilized and sterilization in which the sterilization is carried out to the almost sterile state depending on the degree.

In Korean Utility Model Registration No. 20-0340803 (2004.01.27) filed in the Korean Register, a temperature equalizing device in a chamber of a sterilizer has been disclosed. 1 schematically shows a configuration of a conventional sterilizing apparatus.

1, a conventional sterilization apparatus is provided with a waste heat recovering means 13 in a condensate discharge pipe 12 provided in a lower portion of a chamber 11 so that the high temperature steam in the chamber 11 And passes through the waste heat recovering means 13 when the condensed water which is cooled while being heat-exchanged while the food is sterilized is discharged. The hot condensed water is discharged to the outside through the condensed water discharge pipe 12, and the external cold air is heat-exchanged with the condensed water while passing through the heat exchange pipe in the housing 14 through the air supply pipe 16, do.

A shutoff valve (17) for shutting off external air supply is provided in the air pipe (18) to which warm air having heat exchange with the condensed water is supplied. The air pipe 18 communicates with the steam pipe 19 and the venturi pipe 20 is provided at the end of the steam pipe 19. The steam with the condensed water removed from the inside of the housing 14 flows into the venturi tube 20 through the steam return pipe 21 and then flows into the chamber 11 again.

An on / off valve 22 is provided in the steam pipe 19 for supplying high temperature steam to the inside of the chamber 11. When the internal temperature of the chamber 11 reaches a set temperature, When the internal temperature of the chamber 11 is lower than the set temperature, the on / off valve 22 opens the flow path of the steam tube 19 so that the high temperature steam is supplied to the chamber 11).

The conventional sterilization apparatus disadvantageously degrades the quality of the disinfection product by degrading the nutrients of the disinfection product as the disinfection product is heated during sterilization and the productivity is lowered.

Korean Registered Utility Model No. 20-0340803 (2004.01.27)

In order to solve such conventional problems, the present invention provides a sterilizing apparatus and method for rapidly reducing the pressure of a subject to be sterilized in a high-pressure environment without heating the subject.

The sterilizing apparatus according to the present invention includes a chamber having a sterilizing water inlet for introducing sterilized water and a sterilizing water outlet for discharging the sterilized water and having an opening communicating with the inside and the outside, A second valve for controlling the amount of the sterilization water discharged through the sterilization water discharge port, and a second valve for controlling the amount of the sterilization water discharged through the sterilization port, And a door for opening and closing an opening of the chamber.

In the above, the door is rotatably provided in the chamber about the hinge axis; A locking portion for restricting the rotation of the door so that the door closes the opening portion, and a second operating portion for driving the locking portion.

In the above, an air inlet connected to the first actuating part for introducing air into the chamber is formed; A third valve for adjusting an amount of air in a flow path connecting the first operation unit and the air inlet, a pressure sensor for sensing air pressure in the chamber, and a second valve for receiving the sensed value information of the pressure sensor, A valve, a third valve, a first actuating part, and a second actuating part.

In the above, an ultrasonic vibration part for generating ultrasonic vibration in the object to be sterilized in the chamber is provided.

The sterilization method according to the present invention includes the steps of injecting the object to be sterilized into the chamber, pressurizing the inside of the chamber to a reference pressure, depressurizing the inside of the chamber, and discharging the object to be sterilized in the chamber .

In the above, the depressurization step is suddenly carried out by the pressure before the depressurization step.

In the above, when the pressure in the chamber reaches the reference pressure after the pressing step, the pressure in the chamber is maintained until the pressure reducing step.

In the above, the depressurization step is repeated after the depressurization step.

The sterilization apparatus and method according to the present invention does not destroy the nutrients of the object to be sterilized without heating the object to be sterilized, thereby improving the quality and productivity and maximizing the sterilization effect.

Fig. 1 schematically shows the structure of a conventional sterilizing apparatus,
2 is a cross-sectional view illustrating a sterilizing apparatus according to an embodiment of the present invention,
3 is a block diagram showing the configuration of a sterilizing apparatus according to an embodiment of the present invention,
4 is a cross-sectional view illustrating an example of operation of the sterilizing apparatus according to an embodiment of the present invention,
5 is a flow chart showing a sterilization method according to an embodiment of the present invention,
Figures 6-8 are time-pressure graphs by the sterilization method according to various embodiments of the present invention.

Hereinafter, the technical structure of the sterilization apparatus and method will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view illustrating a sterilizing apparatus according to an embodiment of the present invention. FIG. 3 is a block diagram illustrating the configuration of a sterilizing apparatus according to an embodiment of the present invention. Sectional view showing an operation example of the sterilizing apparatus according to the present invention.

2 to 4, a sterilizing apparatus 100 according to an embodiment of the present invention includes a chamber 110, a first actuating part 190, a first valve 160, And includes a valve 170, a door 140, a locking portion 150, a second actuating portion 153, a third valve 130, a pressure sensor 120, and a control portion 105 .

The chamber 110 is formed of a hollow body having a space formed therein. The chamber 110 has a sterilizing water inlet 111 through which sterilizing water flows into the upper portion thereof and a sterilizing water outlet 113 through which sterilizing water is discharged from the lower portion. do. An air inlet 115 for introducing air is formed on one side of the chamber 110, and an opening communicating the inside and the outside is formed on the other side.

The air inlet 115 and the opening are preferably formed on the upper side of the space portion in the chamber 110. The sterilizing water introduced into the chamber 110 through the sterilizing water inlet 111 fills up to a predetermined height from the bottom of the space in the chamber 110. The air inlet 115 and the opening are formed at a height higher than the height of the object to be sterilized. The opening portion is formed to extend from a position higher than the height of the object to be sterilized to the upper portion of the chamber 110, so that a sudden depressurization is achieved when the opening is opened.

In the above, the subject to be sterilized may be a liquid such as green juice, beverage, herbal medicine or the like, and may be another solid form.

The first actuating part 190 raises the air pressure in the chamber 110 and may be a compressor or the like. The third valve 130 is provided in a passage connecting the first actuating part 190 and the air inlet 115 to adjust the amount of air to the air inlet 115. The third valve 130 is closed in the depressurizing step which is opened in the pressurizing step for raising the pressure in the chamber 110 and is lowered in the pressure in the chamber 110. [

The first valve 160 is provided on the side of the sterilizing water inlet 111 to control the inflow amount of the sterilized water to the sterilized water inlet 111. The first valve 160 is opened when the deodorized material is introduced into the chamber 110 and is closed in the depressurization step of depressurizing the pressure in the chamber 110 and the depressurizing step of raising the pressure in the chamber 110.

The second valve 170 is provided on the side of the sterilization water outlet 113 to regulate the amount of the sterilization water discharged through the sterilization water outlet 113. The second valve 170 is opened when discharging the sterilized product from the chamber 110 and is closed in the depressurizing step of depressurizing the pressure in the chamber 110 and the depressurizing step of raising the pressure in the chamber 110.

The door 140 is rotatably installed in the chamber 110 around the hinge shaft 141 to open and close the opening of the chamber 110. The hinge shaft 141 is formed at the lower end of the door 140 and the end of the door 140 opposite to the hinge shaft is rotated counterclockwise as shown in FIG. . In FIG. 2, the door 140 is in close contact with the projection of the chamber 110 to close the opening. The door 140 is locked in rotation in the opening direction (clockwise direction in FIG. 2) by the locking part 150 to be described later, and fixed between the projection of the chamber 110 and the locking part 150. The second actuating part 153 may be a combination of a motor and a speed reducer. The second actuating part 153 is installed outside the opening of the chamber 110. The locking part 150, which is rotated by the second actuating part 153, supports the door 140 from the outside of the door 140.

The locking portion 150 restricts the rotation of the door 140 so that the door 140 closes the opening. The locking part 150 is rotatable about the rotation axis 151 and restrains the door 140 so that the door 140 closes the opening when the door 140 is rotated as shown in FIG. . The second actuating part 153 drives the locking part 150 to rotate. 4, when the locking portion 150 is rotated and the door 140 is released from the restraint, the door 140 is moved in the opening direction by the pressure in the chamber 110, (Clockwise in FIG. 4), the chamber 110 is opened and the decompression of the chamber 110 is performed.

The pressure sensor 120 senses the air pressure in the chamber 110. The pressure value sensed by the pressure sensor 120 is transmitted to the control unit 105, which will be described later.

The controller 105 receives the sensed value information of the pressure sensor 120 and senses the sensed value of the pressure sensor 120 based on the sensed value of the pressure sensor 120. The sensed value of the sensed value of the pressure sensor 120 is supplied to the controller 105, (153). When the first valve 160 is opened, the controller 105 causes the object to be sterilized to flow into the chamber 110 and closes the first valve 160 when the object to be sterilized reaches a predetermined height lower than the opening. At this time, the second valve 170 and the door 140 are closed.

The controller 105 opens the third valve 130 and operates the first actuating part 190 to pressurize the interior of the chamber 110. [ The control unit 105 compares the pressure in the chamber 110 received from the pressure sensor 120 with a reference value (set value). When the controller 105 determines that the pressure in the chamber 110 reaches the reference value, the control unit 105 stops the operation of the first actuating unit 190 and closes the third valve 130.

The control unit 105 operates the second actuating unit 153 to actuate the locking unit 150 and the door 140 opens the opening by the pressure in the chamber 110. [ During the opening of the opening, the pressure in the chamber 110 sharply decreases, and sudden pressure changes occur in the object to be sterilized in the chamber 110. The chamber 110 is preferably provided in a sterilization chamber 101 of the sterilization environment to prevent infiltration of bacteria outside the chamber 110 into the chamber 110. When the sterilization is completed, the control unit 105 opens the second valve 170 to discharge the sterilized sterilized product.

The sterilizing apparatus 100 according to an embodiment of the present invention further includes an ultrasonic vibration unit 180. The ultrasonic vibration unit 180 generates ultrasonic vibration in the object to be sterilized in the chamber 110. The ultrasonic vibration unit 180 has a vibrator 181 supported in the chamber 110. The ultrasonic vibration unit 180 includes a rectification unit that rectifies and smoothes when an AC current is applied, divides the output voltage of the rectification unit to a predetermined level, and outputs a drive control current corresponding to the divided level to the oscillator 181, 181). The ultrasonic vibration unit 180 may generate ultrasonic vibration in the range of 20 KHz to 1 MHz, for example. The ultrasonic vibration unit 180 can improve the sterilizing effect of the object to be sterilized.

FIG. 5 is a flow chart illustrating a method of sterilization in accordance with one embodiment of the present invention, and FIGS. 6-8 are time-pressure graphs by a sterilization method according to various embodiments of the present invention.

5, the sterilization method according to an embodiment of the present invention includes a step S101 of injecting a sterilized object into the chamber 110, a step S102 of pressing the interior of the chamber 110 to a reference pressure , Depressurizing the inside of the chamber 110 (S104), and discharging the sterilized material in the chamber 110 (S105).

The control unit 105 opens the first valve 160 to introduce the sterilized object into the chamber 110. When the object to be sterilized reaches the predetermined height lower than the opening, Lt; / RTI > At this time, the second valve 170 and the door 140 are closed.

In the pressurization step S102, the control unit 105 opens the third valve 130 and operates the first actuating unit 190 to pressurize the interior of the chamber 110. [ As shown in Fig. 6, in the pressurization step 102, the pressure P gradually increases with time t. The pressure sensor 120 detects the pressure in the chamber 110 and transmits the pressure to the control unit 105. The control unit 105 compares the pressure in the chamber 110 received from the pressure sensor 120 with the reference pressure P 0 .

The controller 105 stops the operation of the first actuating part 190 and stops the operation of the third valve 130 when the pressure in the chamber 110 reaches the reference pressure P 0 , Lt; / RTI > The controller 105 actuates the second actuating part 153 to actuate the locking part 150 and the door 140 opens the opening by the pressure in the chamber 110. In the opening process of this opening, the pressure in the chamber 110 is suddenly reduced to the pressure before the pressure step in a few seconds (? T). The DELTA t may be formed to be, for example, 0.001 seconds. The bacteria in the chamber 110 are sterilized by such a sudden pressure drop in the number of seconds ([Delta] t).

In the discharging step S105, the control unit 105 opens the second valve 170 to discharge the sterilized disinfectant.

Referring to FIG. 7, the sterilization method according to an embodiment of the present invention may include a maintenance step (S103) between the pressurization step (S102) and the depressurization step (S104). If after the compression step (S102) reaches the pressure is a reference pressure (P 0) in the chamber (110), it performs a holding step (S103) for maintaining the pressure in the pressure prior to the step (S104) the chamber (110). In the maintenance step S103, the pressure in the chamber 110 is maintained at the reference pressure P 0 for a predetermined time t 1 . The? T 1 may be formed, for example, in 10 seconds to several minutes. In the maintenance step S103, the sterilization effect of the subject matter of the sterilization is improved by the high-pressure environment.

Referring to FIG. 8, the sterilization method according to an embodiment of the present invention may repeatedly perform the pressurization step (S102) after the depressurization step (S104). That is, after the pressurization step, the decompression step is performed to perform the sterilization, the pressurization step and the decompression step are performed again, and the sterilization effect can be improved by repeating this process several times. In this case, after the pressurization step, the pressure reduction step may be performed after the maintenance step.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the invention. Accordingly, the scope of the true technical protection should be determined by the technical idea of the appended claims.

100: sterilizing device
101: sterilization chamber 105: control unit
110: chamber 111: sterilizing water inlet
113: Disinfection water outlet 115: Air inlet
120: pressure sensor 130: third valve
140: Door 141: Hinge shaft
150: Locking part 151:
153: second operating portion 160: first valve
170: second valve 180: ultrasonic vibration part
181: Oscillator 190: First operating part

Claims (8)

A chamber 110 in which a sterilizing water inlet 111 for introducing sterilizing water and a sterilizing water outlet 113 for sterilizing the sterilizing water are formed; A first valve 160 provided at the sterilizing water inlet 111 and a second valve 170 provided at the sterilizing water outlet 113; The chamber 110 is connected to the first actuating part 190 to form an air inlet 115 through which the air is introduced. A third valve 130 provided in a flow path connecting the first actuating part 190 and the air inlet 115 to adjust the amount of air and a pressure sensor 120 sensing air pressure in the chamber 110, A control unit 105 for controlling the driving of the first valve 160, the second valve 170, the third valve 130 and the first actuating unit 190 according to sensing value information of the pressure sensor 120; ); A depressurizing step S104 of depressurizing the interior of the chamber 110 and a depressurization step S104 of depressurizing the interior of the chamber 110; (S105). In the depressurization step (S104), the pressure is lowered to the pressure before the pressure step (S102) earlier than the pressure step (S102); Wherein the chamber (110) is further provided with an ultrasonic vibration unit (180) for generating ultrasonic vibration in the object to be sterilized in the chamber (110). The apparatus of claim 1, wherein the chamber (110) is formed with an opening that communicates with the inside and the outside, and the opening further includes a door (140) Is rotatably provided around a hinge shaft (141); A locking part 150 for restricting the rotation of the door 140 so as to close the opening part of the door 140 and a second operation part 153 for driving the locking part 150, Wherein the control unit controls the driving of the second actuating unit (153). delete delete delete delete delete delete
KR1020160029057A 2016-03-10 2016-03-10 Apparatus for sterilization KR101831653B1 (en)

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KR1020160029057A KR101831653B1 (en) 2016-03-10 2016-03-10 Apparatus for sterilization

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KR101831653B1 true KR101831653B1 (en) 2018-03-15

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000350568A (en) * 1999-04-29 2000-12-19 Sasib Beverage Machinery M S Spa Method for continuous sterilization of bottled drink and apparatus therefor

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000350568A (en) * 1999-04-29 2000-12-19 Sasib Beverage Machinery M S Spa Method for continuous sterilization of bottled drink and apparatus therefor

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