KR101765048B1 - high temperature air supply device of sterilant sterilizer - Google Patents

Abstract

The present invention relates to a high temperature air supply device for a sterilizer, capable of preventing a leak of sterilizing chemicals as well as preventing the degradation of thermal efficiency by blocking a sterilizing chamber from the outside. The high temperature air supply device is used to minimize the quantity of consumed sterilizing chemicals by controlling an internal temperature of the sterilizing chamber by supplying high temperature air to a sterilizer including the sterilizing chamber. The high temperature air supply device includes: a high temperature air supply chamber connected to an air supply pipe connected to a side of the sterilizing chamber; a heater installed in the hot temperature supply chamber to generate heat; an air flow fan installed in the hot temperature air supply chamber to blow heated air to the air supply pipe by being rotated by the operation of a motor; a gasket installed on a motor shaft to be elevated by the elevation of the motor shaft to seal an arbor hole penetrated by a motor shaft of the high temperature air supply chamber; and a gasket moving unit elevating the motor shaft including the motor to make the gasket open or close the arbor hole.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a high temperature air supply device for sterilizing sterilant,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-temperature air supply device for a sterilizer, and more particularly, to a high-temperature air supply device for a sterilizer that can prevent the sterilization chamber from being leaked out.

Food, medical supplies, and the like are susceptible to bacteria, requiring sterilization or sterilization. Common methods of sterilization (hereinafter referred to as "sterilization") include chemical methods and physical methods.

The chemical sterilization method is a method of sterilizing by interfering with the metabolism of microorganisms by using a gas such as ethylene oxide having high permeability even at a low temperature. The physical method is to add moist heat of high temperature and high pressure steam to the sterilized object, In the process of condensation, microbial proteins are rapidly heated to generate heat and then sterilized by thermal coagulation.

On the other hand, various types of disposable medical devices or reusable medical devices used in medical institutions such as hospitals must be completely sterilized before their use, and sterilized state shall.

Therefore, various methods for sterilizing medical devices and foods have been developed. As a sterilization method, a conventional method using high temperature and high pressure, a method using ethylene oxide gas, and a method using hydrogen peroxide plasma are widely used.

Among the technologies related to various sterilization methods, there are various technologies related to sterilization using plasma, which have recently been widely used, for example, Patent Documents 1 to 3.

Patent Document 1 discloses a sterilizing apparatus for sterilizing medical equipment and medical equipment including a chamber into which medical equipment and equipment to be sterilized are put, a door provided at the front, a display unit formed on the front surface of the main body, In the disinfecting apparatus, the chamber is provided with an ozone sensor for detecting the concentration of ozone present in the chamber, a vacuum pressure sensor for detecting the pressure inside the chamber, a plurality of complex filters, a vacuum pump and a pressure sensor A steam generating and recovering device for introducing high pressure steam for sterilization using high pressure steam and recovering the high pressure steam,

In Patent Document 2, air, water, hydrogen peroxide, and the like are plasmaized by spraying water or low-concentration hydrogen peroxide into fine particles in the sterilization chamber, and a sterilizing gas having strong oxidizing power such as ozone and OH radical is generated A medical instrument such as a handpiece, an endoscope, a catheter or the like, which sterilizes the surface of the medical instrument placed in the sterilization chamber and forms a tube therein, is attached to a connection portion formed on one side of the sterilization chamber, And sterilizing the inner tube of the medical instrument by injecting the sterilizing gas into the tube in the medical instrument,

Patent Document 3 discloses a chamber in which a door is formed at one side to store a sterilized object, sterilizing action is performed by reacting sterilizing agent ions and plasma electrons activated in a space under a certain pressure, A vaporizer in which a sterilizing agent is caused to collide with a high temperature heater in a space inside a plasma generating unit for generating a plasma in the chamber to vaporize; A solenoid 2 for evacuating the air of the vaporizer to the outside to evacuate; A capsule injector for supplying a sterilizing agent into the vaporizer; A solenoid 1 for injecting the sterilizing agent supplied from the capsule injector into the vaporizer; A temperature controller for controlling the temperature inside the vaporizer; An injector for injecting sterilized medicament vaporized inside the vaporizer into the chamber; And a central processing unit for controlling the vacuum state of the vaporizer by controlling the solenoid 2, controlling the injector to control the spray amount of the sterilizing agent, and controlling the temperature controller to control the temperature inside the vaporizer.

Such conventional sterilization apparatuses use sterilized medicines as described above, and such sterilization medicines are not only detrimental to foods but also cause high-priced surgical instruments and inspection equipment to be aged.

Accordingly, a technology capable of achieving a sufficient sterilization effect while reducing the use of sterilized medicines has been developed, and one method is to increase the temperature of the sterilized material to enhance the penetration of sterilized medicines.

Thus, a technique for increasing the internal temperature of the sterilization chamber has been developed and used, for example, Patent Documents 4 and 5.

Patent Document 4 discloses a sterilization apparatus for sterilizing a sterilization fuel for sterilization, which comprises a metering tank for storing sterilization fuel to be injected into a chamber for containing sterilized contents, A fuel injecting portion composed of a solenoid valve; A storage tank for storing sterilization fuel to be filled externally so that the sterilization fuel can be supplied to the metering tank of the fuel injection unit, a supply pump for supplying the sterilization fuel to the metering tank from the storage tank, A fuel storage unit comprising a first level sensor for detecting the presence or absence of fuel in the metering tank; And a second level sensor for detecting the presence or absence of fuel in the storage tank so as to confirm whether the fuel cartridge is replaced with a fuel cartridge filled with sterilizing fuel so as to fill the sterilization fuel in the storage tank of the fuel storage part, And a chamber heater for controlling the sterilization temperature inside the chamber is provided,

Patent Document 5 discloses a low-temperature plasma sterilizer for injecting vaporized hydrogen peroxide into a chamber in which a vacuum is formed to cause sterilization of a product loaded in a chamber. The low-temperature plasma sterilizer includes a hydrogen- And a heater is wound around the drum to heat the drum, while a partition wall is formed on the inside of the drum so as to be vertically shifted, and hydrogen peroxide in the gaseous state can be injected into the chamber through the discharge port.

In the case of a conventional sterilizer having a heater for heating the sterilized object, since the heater is installed inside the sterilization chamber, heat is directly applied to the sterilized object, the sterilized object is damaged or the object to be sterilized There is a disadvantage that the space to be inserted is narrowed.

3, a blowing fan 100 is installed on one side of the sterilization chamber 200, and air heated from an outside heater is blown into the sterilization chamber 200 using a blowing fan, To the inside of the apparatus.

However, in the conventional sterilizer having the heater, the sterilization chamber is not closed because the portion where the blowing fan is installed is opened, so that the sterilized medicament supplied to the inside leaks out and the thermal efficiency is low.

1. Korean Patent No. 10-1073160 2. Korean Patent No. 10-1250748 3. Korean Patent No. 10-1254190 4. Korean Registered Patent No. 10-1049571 5. Korean Registered Patent No. 10-1424181

SUMMARY OF THE INVENTION The present invention has been developed in order to solve the problems of the prior art as described above, and it is an object of the present invention to provide a sterilization apparatus which can prevent the sterilization agent from leaking by blocking the sterilization chamber from the outside, And to provide the above-mentioned objects.

More specifically, the air heated by the sterilization chamber is circulated. When the inside air of the sterilization chamber is sufficiently heated and the air is filled in the sterilization chamber sufficiently to perform the sterilization action, air does not flow from the outside Temperature air supply device of a sterilizer having an opening / closing device on a rotary shaft of a blowing motor so as not to obstruct the flow of air.

In order to achieve the above object, the present invention provides a high-temperature air supply device for a sterilizing machine, which comprises a sterilizing chamber having a sterilizing chamber for supplying high-temperature air to a chamber, An air supply unit, a high temperature air supply chamber connected to one side of the sterilization chamber; A heater installed inside the high-temperature air supply chamber to generate heat; A blowing fan installed inside the high-temperature air supply chamber for blowing wind heated by the rotation of the motor; A gasket installed on the motor shaft to close the shaft hole through which the motor shaft of the high temperature air supply chamber passes, when the motor shaft ascends and descends; And a gasket moving means for moving up and down the motor shaft including the motor so that the gasket closes or opens the shaft hole.

The gasket moving means includes a moving plate integrally installed on one side of the motor; A guide bar installed through the moving plate; A screw shaft formed on one side of the moving plate and passing through a spiral hole having a spiral groove formed on an inner peripheral surface thereof; And a moving motor for rotating the screw shaft.

A plurality of springs are further provided between the buffer plate and the moving plate, and a switch is provided between the guide and the moving plate and between the moving plate and the buffer plate, It is preferable to limit the rising and falling distance of the gasket which is raised and lowered by the driving of the gasket.

A circulation pipe connected to the sterilization chamber may further be connected to one side of the high-temperature air supply chamber.

The gasket may be fixed to a groove formed on one surface of a gasket housing formed with a shaft hole through which a motor shaft is inserted.

As described above, the high temperature air supply device of the sterilizer according to the present invention can selectively open and close the high temperature air supply chamber by installing gaskets. The sterilization chamber is shielded from the outside when the inside of the sterilization chamber is sufficiently heated, thereby preventing leakage of the sterilization medicament and preventing the thermal efficiency from being lowered.

1 is a block diagram of a sterilizer having a high-temperature air supply device for a sterilizer according to the present invention
2 is a perspective view of an opening / closing apparatus constituting a high-temperature air supply device of a sterilizer according to the present invention.
FIG. 3 is a cross-sectional view of an example of a sterilization chamber having a conventional blower fan for heat supply

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

Like reference numerals are used for like elements in describing each drawing. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention enables to reduce the consumption of the sterilizing agent by supplying hot air into the sterilization chamber, and it is possible to allow the outside air to flow into the sterilization chamber only in the process of supplying the hot air, The hot air is circulated through the sterilization chamber to prevent the heat from being discharged to the outside, thereby improving the thermal efficiency and preventing the sterilization agent from leaking to the outside.

The high temperature air supply device of the sterilizer according to the present invention serves as a passage through which a shaft hole 10h through which a motor shaft installed through the high temperature air supply chamber 10 passes, A gasket 40 is provided so as to open and close the shaft hole 10h so that air in the sterilization chamber 100 can be shut off from the outside.

The high temperature air supply device of the sterilizer according to the present invention includes a sterilizing chamber for minimizing the amount of sterilizing agent required by controlling the temperature inside the chamber by supplying high temperature air to the sterilizer having the sterilizing chamber 100, Lt; / RTI >

As shown in FIGS. 1 and 2, the high-temperature air supply chamber 10 is connected to an air supply pipe 100p connected to one side of the sterilization chamber, and is a hollow cylinder.

Inside the high-temperature air supply chamber 10, a heater 20 for heating the air introduced from outside is provided.

As shown in FIGS. 1 and 2, the heater 20 is installed inside the high-temperature air supply chamber 10 to generate heat. When the air inside the high-temperature air supply chamber can be heated, But it is preferably installed in the form of a ring along with the internal defects of the high-temperature air supply chamber 10 as shown in the figure.

And a blowing fan 30 that rotates by driving the motor 30m as means for blowing the air heated by the heater 20 into the sterilization chamber 100. [

The blowing fan 30 is installed at an end of a motor shaft 30s extending from a motor 30m provided outside and installed inside the hot air supply chamber 10 as shown in the figure.

A shaft hole 10h is formed in the high temperature air supply chamber 10 so that the motor shaft 30s can pass through the wall of the high temperature air supply chamber 10. The shaft hole 10h penetrates the motor shaft 30s And serves as a flow path for allowing the outside air to flow into the high-temperature air supply chamber 10.

If the axial hole 10h is always open, the external cold air may flow into the sterilization chamber through the high-temperature air supply chamber 10, or the hot air supplied to the sterilization chamber may leak to the outside, desirable.

For this purpose, the gasket 40 is provided as means for opening and closing the shaft hole 10h. The gasket 40 is installed on the motor shaft 30s and closes or opens the shaft hole 10h through which the motor shaft of the high-temperature air supply chamber passes as the motor shaft ascends and descends.

That is, after the air heated by the heater is sufficiently supplied into the sterilization chamber 100, the gasket 40 is closely attached to the outer wall of the high-temperature air supply chamber 10 in which the shaft hole 10h is formed to seal the shaft hole.

Of course, in the process of supplying the high temperature air to the sterilization chamber, the gasket 40 is separated from the outer wall of the high temperature air supply chamber 10 in which the shaft hole 10h is formed so that the air hole 10h is opened, 10).

As described above, the gasket 40 is further provided with gasket moving means 50 for moving the gasket 40 up and down.

The gasket 40 is installed on the motor shaft 30s and the gasket 40 is moved by moving the compressor 30m including the motor shaft 30s and the blowing fan 30 up and down, do.

The gasket moving means (50) includes a moving plate (51) integrally provided on one side of the motor (30m); A guide bar (52) installed through the moving plate; A screw shaft (53) formed on one side of the moving plate and provided through a spiral hole having a spiral groove formed on an inner peripheral surface thereof; And a moving motor 54 for rotating the screw shaft.

That is, the screw shaft 53 rotates by driving the moving motor 54, and the moving plate moves along the screw axis as the screw shaft rotates.

The guide bar 52 serves to guide the moving path of the moving plate so that the moving plate can be smoothly moved.

It is preferable that the present invention further comprises means for restricting the moving distance of the gasket 40. The gasket moving distance limiting means may include a gasket 40 disposed below the gasket 40, 55); A plurality of springs (56) are provided between the buffer plate (55) and the moving plate. Switches 57u and 57d are provided between the guide and the moving plate and between the moving plate and the buffer plate.

This gasket movement distance limiting means is rotated on the screw shaft by the driving of the moving motor 54 to move the moving plate 51 upwardly When the moving motor 54 is further driven in this state, the spring 56 provided between the moving plate and the buffer plate contracts and the closing switch 57u is pressed to cut off the power supplied to the moving motor The gasket 40 is brought into close contact with the outer wall of the shaft hole and the shaft hole is blocked.

Conversely, when separating the gasket 40 adhering to the outer wall of the shaft hole and opening the shaft hole, the moving motor 54 is rotated in the opposite direction to rotate on the screw shaft so that the moving plate 51 descends The gasket 40 is separated from the shaft hole outer wall of the high temperature air supply chamber 10 and the moving motor 54 is further driven in this state so that the moving plate is installed at the lower end of the guide bar 52 The open switch 57d is pressed to cut off the power supplied to the moving motor so that the gasket 40 is separated from the shaft hole outer wall and the shaft hole is opened.

After the air heated by the heater is sufficiently supplied to the inside of the sterilization chamber, the high temperature air supply device constructed as above should close the air hole 10h as described above so that the hot air of the sterilization chamber can maintain a high temperature To this end, a circulation pipe 60 connected to the sterilization chamber 100 is further connected to one side of the high-temperature air supply chamber 10.

That is, the circulation pipe 60 provides a function of a flow path for allowing the hot air to circulate through the sterilization chamber 100 and the hot air supply chamber 10.

The gasket 40 may have any structure as long as it can open and close the shaft hole 10h. However, as shown in FIG. 3, the gasket 40 may include a gasket housing 41 having a shaft hole 41h, Is fixed to a groove formed on one surface of the base plate (41).

Of course, the space between the gasket housing 41 and the motor shaft 30s is sealed so that air can not pass through.

10: High temperature air supply chamber
10h:
20: Heater
30: Ventilation fan
30m: Motor 30s: Motor shaft
40: Gasket
41: gasket housing 41h: shaft hole
50: gasket moving means
51: moving plate 52: guide bar
53: screw shaft 54: moving motor
55: buffer plate 56: spring
57u: Closing switch 57d: Opening switch
60: Circulation tube
100: Sterilization chamber 100p:

Claims (5)

A sterilization chamber high temperature air supply device for minimizing the amount of sterilant required by controlling the temperature inside the chamber by supplying high temperature air to the sterilization chamber having the sterilization chamber 100,
A high temperature air supply chamber (10) connected to the air supply pipe (100p) on one side of the sterilization chamber;
A heater (20) installed inside the high temperature air supply chamber to generate heat;
A blowing fan 30 installed in the high-temperature air supply chamber for blowing wind heated by the rotation of the motor 30m to a gas supply pipe,
A gasket 40 installed on the motor shaft 30s to close the shaft hole 10h through which the motor shaft of the high temperature air supply chamber passes as the motor shaft ascends and descends;
And a gasket moving means (50) for moving the motor shaft including the motor so that the gasket closes or opens the shaft hole. The method according to claim 1,
The gasket moving means (50)
A moving plate 51 integrally provided on one side of the motor 30m;
A guide bar (52) installed through the moving plate;
A screw shaft (53) formed on one side of the moving plate and provided through a spiral hole having a spiral groove formed on an inner peripheral surface thereof;
And a moving motor (54) for rotating the screw shaft. 3. The method of claim 2,
A plurality of springs 56 are further provided between the buffer plate 55 and the moving plate so that the motor shaft 30s passes through the gasket 40. A plurality of springs 56 are further provided between the buffer plate 55 and the moving plate, And a switch is provided between the moving plate and the buffer plate to limit a lifting distance of the gasket lifted and lowered by driving of the moving means. 4. The method according to any one of claims 1 to 3,
Wherein a circulation pipe (60) connected to the sterilization chamber (100) is further connected to one side of the high temperature air supply chamber (10). 5. The method of claim 4,
Wherein the gasket (40) is fixed to a groove formed on one surface of a gasket housing (41) in which a shaft hole (41h) through which a motor shaft is inserted is formed.

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