JP2007089908A - Sterilizing device for emergency - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sterilizing device for emergency capable of reliably performing sterilization and easily confirming the termination of the sterilization. <P>SOLUTION: The device includes: a sterilizing tank 3 for sterilizing an object 2 to be sterilized with steam which is generated from a heating source 4; a pressure control valve 5 for performing control to obtain sterilization pressure in the sterilizing tank 3; and a sterilization termination reporting means 6. The sterilization termination reporting means 6 includes: a pressure detecting device 14 for detecting the pressure of the sterilizing tank 3; a timer 15 for starting an operation when the pressure detected by the pressure detecting device 14 becomes not less than set pressure; and a reporting device 16 which is operated when the timer 15 clocks a set time, so as to report the sterilization termination. The timer 15 and the reporting device 16 are driven by a portable power source 17. The sterilizing device also includes: a first contact point 18 which is closed when the pressure being higher than the set pressure is detected by the pressure detecting device 14, so as to feed power to the timer 15; and a second contact point 19 which is closed after the timer 15 terminates the clocking, so as to feed power to the reporting device 16. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an emergency sterilization apparatus that can be used on site such as in a disaster.

  This type of emergency sterilization apparatus is proposed in Patent Document 1 and the like. By the way, in order to reliably sterilize an object to be sterilized with steam, it is necessary to sterilize at a predetermined temperature or higher for a predetermined time.

Japanese Utility Model Publication No. 57-126242

The conventional sterilization apparatus of Patent Document 1 includes only a pressure gauge that displays the pressure in the sterilization chamber. Therefore, in order to perform reliable sterilization, a person must measure the required sterilization time while looking at the pressure gauge. . In general, in an emergency, it is normal for each person to carry out a plurality of operations, and if the sterilizer is used clearly, the operation does not proceed and it is impractical.
The problem to be solved by the present invention is to provide an emergency sterilization apparatus capable of performing reliable sterilization and easily confirming completion of sterilization.

  The present invention has been made to solve the above-mentioned problems. The invention according to claim 1 is directed to a sterilization tank for sterilizing an object to be sterilized by steam generated by a heating source, and a sterilization pressure in the sterilization tank. A sterilization end notification means, the sterilization end notification means detects a pressure in the sterilization tank, and a pressure detected by the pressure detector is equal to or higher than a set pressure. It includes a timer for starting the operation, and a notification device that operates when the timer measures the set time and notifies the end of sterilization.

  According to invention of Claim 1, reliable sterilization can be performed in spite of simple structure. When the sterilization is completed, the alarm device notifies the end of the sterilization, so that the operator can easily know the end of the sterilization. Further, since the sterilization end notification means is a simple one including the timer and the notification device, it can be made suitable for an emergency sterilization apparatus.

  The invention according to claim 2 is provided with a first contact that is driven by a portable power source and closes when the pressure detector is equal to or higher than a set pressure, and supplies power to the timer in claim 1, The timer is provided with a second contact that closes after timing and supplies power to the alarm.

  According to invention of Claim 2, the structure of the said sterilization completion alerting | reporting means can be simplified.

  According to a third aspect of the present invention, in the first or second aspect, the notification device emits a notification sound.

  According to the third aspect of the present invention, the operator can know the end of sterilization with the ear, and the workability is further improved.

According to the present invention, it is possible to provide an emergency sterilization apparatus capable of performing reliable sterilization and easily confirming completion of sterilization.

  Next, an embodiment of the present invention will be described. The emergency steam sterilization apparatus according to the embodiment of the present invention can be carried and used on site at the time of a disaster, and can be referred to as a disaster sterilization apparatus or a portable sterilization apparatus.

  This embodiment includes a sterilization tank for sterilizing an object to be sterilized by steam generated by a heating source, a pressure control valve for controlling the inside of the sterilization tank to a sterilization pressure, and a sterilization end notification unit, and the sterilization end A notification means detects a pressure in the sterilization tank, a timer that starts operation when the pressure detected by the pressure detector exceeds a set pressure, and operates when the timer counts a set time to sterilize It is an emergency sterilizer characterized by including the alarm which alert | reports completion | finish.

  In this embodiment, the pressure in the sterilization tank is maintained at a sterilization pressure suitable for sterilization (for example, 0.215 MPa) by opening and closing the pressure control valve. When the pressure detector detects that the pressure in the sterilization tank has reached the set pressure, the timer starts measuring time. When the set time required for sterilization is counted, the alarm notifies the end of sterilization. Thereby, the operator can know the end of reliable sterilization and can stop the heating source.

  Here, the components of this embodiment will be described. The sterilization tank is provided with a container having an opening for storing and removing an object to be sterilized, and a detachable lid for opening and closing the opening, and is formed in a pressure resistant structure capable of withstanding high-pressure sterilization. The sterilization tank is formed of a heat resistant metal such as stainless steel. Of course, when the container and the lid are closed, the container and the lid are configured to engage with each other in a sealed state so as to withstand high-pressure sterilization. be able to. The supply of water to the sterilization tank is preferably performed from the opening.

  The sterilization tank includes an air evacuation valve that allows air to escape at the start of sterilization and closes when the set pressure is reached, and a safety valve that opens when the pressure becomes abnormal.

  The heating source is preferably a portable heating source and is a gas-type cassette stove, but is not limited to this as long as it can be carried and can supply heat necessary for sterilization.

  The pressure control valve is preferably a valve that mechanically opens and closes in response to the pressure in the sterilization tank, and has a function of maintaining the pressure in the sterilization tank at a set pressure higher than a pressure suitable for sterilization. If it is, the structure is not specified. As this pressure control valve, a known pressure control valve of a pressure cooker can be used. The pressure control valve can be attached to the container or the lid.

  The timer and the alarm are preferably configured to be driven by a portable power source. As this portable power source, a dry cell, a fuel cell, and a storage battery are used, and it can be used as a car battery.

The pressure detector of the sterilization notification means has a function of detecting that the pressure in the sterilization tank has become a set value pressure and starting the operation to the timer. The set pressure may be the same as or slightly different from the sterilization pressure. The pressure detector preferably has a first contact that mechanically closes when the set pressure is detected. In this way, when the timer is driven by the portable power source, the first contact can be provided in a power supply circuit from the battery to the timer, and the circuit configuration can be simplified.

  The timer has a function of starting time measurement when the pressure detector detects the set pressure, and starting operation of the alarm device when time set time is finished. This timer is preferably provided with a second contact that mechanically closes when the set time is finished. Thus, when the alarm device is driven by the portable power source, the second contact can be provided in a power supply circuit from the portable power source to the alarm device, and the circuit configuration can be simplified.

  Moreover, although the said alarm shall alert | report preferably by making a sound like a buzzer, it can be set as the flashing lamp.

  Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram for explaining a schematic configuration of the embodiment, and FIG. 2 is an electric circuit diagram for explaining an outline of the sterilization notification means of the embodiment.

  In this embodiment, a pressure-resistant sterilization tank 3 for containing water 1 and an object to be sterilized 2, a portable heating source 4 for heating the sterilization tank 3, and opening and closing in response to the pressure in the sterilization tank 3 are opened and closed. The pressure control valve 5 which controls the inside of the sterilization tank 3 to the sterilization pressure P1 (for example, 0.215 MPa) and the sterilization end notification means 6 are provided as main parts.

  Here, each component of this embodiment will be described. The sterilization tank 3 is provided with a container 8 having an opening 7 for storing and taking out the article 2 to be sterilized, and a detachable lid 9 for opening and closing the opening 7.

  The sterilization tank is formed of a heat resistant metal such as stainless steel. The container 8 and the lid 9 are configured to engage with each other in a sealed state when closed. The structure adopts a well-known pressure cooker structure, and the description is omitted. Water is supplied to the sterilization tank from the opening 7, and the water is stored below a shelf 10 that is detachably provided in the container 8. The article to be sterilized 2 is placed on the shelf 10.

  The lid 9 of the sterilization tank 3 allows air to escape at the start of sterilization, opens when the set pressure is lower than the sterilization pressure P1 by a predetermined value, and opens when the abnormal pressure is higher by a predetermined value than the sterilization pressure P1. A safety valve 12 is provided that closes when the set pressure is lower than the abnormal pressure by a predetermined value.

  Moreover, the said sterilization tank 3 is provided with the mount frame 13 which supports this so that attachment or detachment is possible.

  The portable heating source 4 uses a detachable gas cylinder (not shown) gas-type cassette stove.

  The pressure control valve 5 is configured by a valve that mechanically opens and closes in response to the pressure in the sterilization tank 3 and is attached to the lid 9.

  Referring to FIGS. 1 and 2, the sterilization end notification means 6 operates when a pressure detector 14 for detecting the pressure in the sterilization tank 3 and a pressure detected by the pressure detector 14 is equal to or higher than a set pressure P2. And a notification device 16 that operates when the timer 15 measures the set time T1 to notify the end of sterilization. The timer 15 and the alarm 16 are driven by a battery 17 as a portable power source.

  The pressure detector 14 has a first contact 18 that mechanically closes when the set pressure P2 is detected. The set pressure P2 is the same as the sterilization pressure PI in this embodiment.

  The timer 15 is driven by the battery 17 and includes a second contact 19 that starts timing when energization starts and mechanically closes when the timing of the set time T1 ends. The timer 15 is preferably reset when the power supply is stopped, but can be manually reset.

  The alarm 16 is a buzzer, and its output volume can be adjusted. The battery 17 is a dry battery.

  Each component of the sterilization end notification means 6 is connected in a circuit as shown in FIG. That is, the timer 15 is connected to the battery 17 via the manual switch 20 and the first contact 18, and the alarm 16 is connected to the battery 17 via the manual switch 20 and the second contact 19. Connected with. In addition, each component other than the first contact point 18 of the sterilization end notification unit 6 is integrated with a control box 21 that is mounted at a location where the gantry 13 is not affected by heat. The first contact 18 is built in the pressure detector 14.

  The sterilization tank 3 is provided with a pressure release valve 22 that is manually opened after sterilization is completed to release the internal pressure.

  The operation of the embodiment having the above configuration will be described. First, as shown in FIG. 1, the operator sets the sterilization tank 3 and the portable heating source 4 on the gantry 13 as a preparation stage. Next, the lid 9 is opened, the water 1 and the article to be sterilized 2 are accommodated in the container 8, and the lid 9 is closed again in a sealed state. The pressure release valve 22 is closed and the manual switch 20 is closed. At this time, the air exclusion valve 11 is open and the safety valve 12 is closed.

  When this preparation step is completed, the portable heating source 4 is ignited and heating of the sterilization tank 3 is started. When this heating is started, the air in the sterilization tank 3 is pushed out of the air exhaust valve 11 and discharged by the generated steam, and an air exhausting process is performed. When the pressure in the sterilization tank 3 rises, the air exclusion valve 11 is automatically tightened, the pressure in the sterilization tank 3 further rises, eventually reaches the sterilization pressure P1, and the sterilization process is started.

  When the sterilization process is started, the first contact 18 is closed by the pressure detector 14, power supply to the timer 15 is started, and time measurement is started. When the set time T1 is counted, the timer 15 closes the second contact 19 and supplies power to the alarm 16. As a result, a notification sound is emitted from the notification device 16.

  From this notification sound, the operator knows that sterilization has been completed, and opens the manual switch 20 and also opens the pressure release valve 22 to restore the pressure in the sterilization tank 3 to atmospheric pressure. When the return pressure is finished, the lid 9 is opened, and the sterilized article 2 that has been sterilized is taken out. Thus, the sterilization operation is completed.

  According to this embodiment, the sterilization end notification unit 6 is operated by the battery 17 and the circuit configuration of the sterilization end notification unit 6 is simple, and thus is suitable as an emergency sterilization apparatus. .

This invention is not limited to the said Example, For example, the said base 13 and the said portable heating source 4 can be integrated previously.

It is a figure explaining schematic structure of the Example of this invention. It is a figure explaining the electric circuit structure of the Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water 2 Object to be sterilized 3 Sterilization tank 4 Portable heating source 5 Pressure control valve 6 Sterilization completion notification means 15 Timer 16 Notification means 17 Battery (portable power supply)

Claims (3)

  A sterilization tank for sterilizing an object to be sterilized by steam generated by a heating source, a pressure control valve for controlling the inside of the sterilization tank to a sterilization pressure, and a sterilization end notification unit, A pressure detector that detects the pressure in the tank, a timer that starts operation when the pressure detected by the pressure detector exceeds a set pressure, and an alarm that operates when the timer counts the set time to notify the end of sterilization An emergency sterilization apparatus comprising:   The timer and the alarm are driven by a portable power source, and include a first contact that closes and supplies power to the timer when the pressure detector exceeds a set pressure, and the timer closes after timing and supplies power to the alarm The emergency sterilizer according to claim 1, further comprising a second contact.   The emergency sterilization apparatus according to claim 1 or 2, wherein the notification device emits a notification sound.

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