JP3063176U - High pressure steam sterilizer - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a high-pressure steam sterilizer that can accurately grasp the remaining sterilization time and that can be used safely without danger such as burns. A steam generation chamber (25) is provided between an inner can (23) and an outer can (24).
Are provided, and a container 22 having a double can structure in which a sterilization chamber 22A is formed in an inner can 23 is provided. A heater 26 is provided in the steam generation chamber 25. A water storage tank 30 for supplying water into the steam generation chamber 25 is provided. A discharge pipe 35 for discharging water in the steam generation chamber 25 is connected between the steam generation chamber 25 and the water storage tank 30. The discharge pipe 35 is spirally wound in the water tank 30. The tip of the discharge pipe 29 is opened downward from above in the water tank 30.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a discharge pipe for discharging high-pressure high-temperature water and steam heated in a steam generation chamber, and more particularly, to a high-pressure steam sterilizer having a spirally formed discharge pipe in a water storage tank. .

[0002]

[Prior art]

 Conventionally, this type of high-pressure steam sterilizer is disclosed, for example, in Japanese Utility Model Publication No. 2-2539 (A61L2 / 06). As shown in FIG. 7, the high-pressure steam sterilizer 110 uses a container 122 having an inner can 123 and an outer can 124 and having a double can structure, and a sterilization chamber pressure gauge 114 is provided in the container 122. A sterilization chamber 122A is formed. A steam generation chamber 125 is formed between the inner can 123 and the outer can 124, and a heater 126 for electrically heating is provided in a water tank section 125A formed at a lower portion inside the steam generation chamber 125.

Then, water stored in a water storage tank (not shown) flows into the water tank 125 A and is heated by the heater 126, thereby generating steam in the steam generation chamber 125. Then, the high-pressure and high-temperature steam generated in the steam generation chamber 125 was allowed to flow into the sterilization chamber 122A, and the sterilized material stored in the sterilization chamber 122A was sterilized with the high-pressure and high-temperature steam. In this case, the high-pressure steam sterilizer 110 is provided with a dial-type timer (not shown), and the timer is rotated clockwise to set a sterilization time for sterilizing the sterilized material.

[0004] Further, the water that has flowed into the steam generation chamber 125 and the water that has been stored in the water storage tank are contaminated with impurities such as calcium and magnesium that are dissolved in the water if the sterilized material is sterilized several times. Had to be replaced regularly. In particular, since the water in the steam generation chamber 125 is heated by the heater 126, many scales are generated. Therefore, the water in the steam generation chamber 125 is discharged and exchanged. When the water in the steam generation chamber 125 is exchanged, the steam chamber pressure gauge 113 attached to the steam generation chamber 125 is checked and the steam is exchanged. Before the inside of the generation chamber 125 was completely cooled, the water in the steam generation chamber 125 was discharged when the water temperature became about 80 ° C. and the pressure became about 1 kg / cm 2 or less.

In this case, after holding the drainage hose 132 provided at the bottom of the water tank part 125 A of the steam generation chamber 125 by hand and putting the tip into the bucket 136, the disc valve inserted into the drainage hose 132 131 was opened to discharge the high-temperature water and steam in the water tank 125A into the bucket 136.

[0006]

[Problems to be solved by the invention]

 However, when discharging high-temperature water and steam in the steam generation chamber, the discharge hose provided at the bottom of the steam generation chamber was discharged by hand. Was discharged at about 80 ° C. In this case, since the pressure in the steam generation chamber was not at 0 atm, high-temperature water and steam were swiftly discharged from the discharge hose, and the hose tip ran sideways. For this reason, there was a risk that high-temperature water and steam drained from the drain hose would be scattered, and if the hands touched the scattered high-temperature water and steam, there would be a risk of burns. Therefore, there has been a demand for the development of a high-pressure steam sterilizer capable of safely using the high-pressure high-temperature water discharged from the discharge hose without touching the hands.

Further, since the sterilization time is set by the timer of the dial type pointer, the remaining sterilization time can only be roughly grasped by the dial type pointer. For this reason, there was a problem that a mental burden was imposed because it was not possible to fully understand when the sterilization of the sterilized product was completed or how much time should be waited until the next sterilization.

The present invention has been made to solve the above-mentioned conventional technical problem, and is capable of accurately grasping the remaining time of sterilization, and of using high-pressure steam sterilization that can be used safely without danger of burns. It is intended to provide a device.

[0009]

[Means for Solving the Problems]

 In other words, the high-pressure steam sterilizer according to the invention of claim 1 has a double-can-structure container that forms a steam generating chamber between the inner can and the outer can, a sterilization chamber formed in the inner can, and An opening / closing lid for opening and closing the opening of the sterilization chamber, a water storage tank for storing water to be supplied to the steam generation chamber, and a heater provided in the steam generation chamber are provided. Heating the water to generate high-pressure, high-temperature steam to sterilize the articles stored in the sterilization chamber. The discharge pipe discharges the water in the steam generation chamber, and the drain pipe is interposed. And a drain valve with the tip of the discharge pipe opened in a water storage tank.

[0010] In addition to the above, in the high-pressure steam sterilizer according to the invention of claim 2, in addition to the above, after the discharge pipe extends from the lower part in the water tank to the upper part, the tip is opened toward the lower part in the water tank. It has been done.

[0011] Further, in the high-pressure steam sterilizer according to the invention of claim 3, in addition to claim 1 or claim 2, the discharge pipe passes through the water stored in the water storage tank, and once on the water surface. After being pulled out, it is open to the water surface.

[0012] In the high-pressure steam sterilizer according to the fourth aspect of the present invention, in addition to the first, second or third aspect, the discharge pipe is spirally wound in the water storage tank. is there.

Further, the high-pressure steam sterilizer according to the invention of claim 5 is provided with a control device for setting a sterilization time and displaying the set sterilization time on a digital display, and the control device performs sterilization from the start of sterilization. The time is counted down and displayed on a digital display.

[0014]

[Embodiment of the invention]

 Next, an embodiment of the present invention will be described in detail with reference to the drawings. 1 is a perspective view of the high-pressure steam sterilizer 10 of the present invention, FIG. 2 is a pipe connection diagram of the high-pressure steam sterilizer 10 of the present invention, and FIG. 3 is a top view showing the inside of the case 11 of the high-pressure steam sterilizer 10 of the present invention. FIG. 4 is a perspective view of the high-pressure steam sterilizer 10 in a state where the opening / closing lid 20 is opened.

The high-pressure steam sterilizer 10 internally sterilizes a case 11, a water storage tank 30 provided in the case 11, and a medical scalpel and forceps (not shown) provided in the case 11 as sterilized materials. And a container 22. A panel 12 is provided on one side of the front surface of the case 11 (in this case, on the right side). Above the panel 12, a steam chamber pressure gauge 13 for displaying the pressure of a steam generation chamber 25 described later is provided. Below the chamber pressure gauge 13, a sterilization chamber pressure gauge 14 for displaying the pressure of the sterilization chamber 22A described later is provided.

A start switch 15 is provided below the sterilization chamber pressure gauge 14, and a sterilization time selection switch 16 is provided below the start switch 15. On the side of the sterilization time selection switch 16, three LEDs 17 are provided in a horizontal line, and near the LEDs 17 (in this case, the upper side), sterilization times (not shown) of 5, 7 and 10 minutes are described. Have been. That is, each time the sterilization time selection switch 16 is pressed, the lighting of the LED 17 is sequentially switched in conjunction with the sterilization time, whereby the sterilization time can be selected.

A power switch 19 is provided below the panel 12, and a digital display 18 is provided between the power switch 19 and the sterilization time selection switch 16 and the LED 17. The digital display 18 displays the sterilization time and is composed of 7-segment LEDs of a size that can be easily viewed. The four LEDs 17 are provided in parallel, and are configured so that minutes and seconds can be displayed in order from the left side.

A control device 33 is connected to the digital display 18. The control device 33 displays the time selected by the sterilization time selection switch 16 on the digital display 18, and displays the displayed time. Is configured to be displayed as a countdown. That is, when the sterilization time selection switch 16 selects the sterilization time of 10 minutes, the control device 33 first displays 10 minutes 00 seconds (10:00) on the digital display 18 and counts down from that time. At the end of the sterilization time, 0 minute 00 seconds (0:00) is displayed.

On the other hand, an openable and closable lid 20 is pivotally supported on the other front side of the case 11, and a packing 20 A is provided inside the openable and closable lid 20. The packing 20A is made of a soft silicone rubber or the like, and the packing 20A is provided corresponding to an opening of a container 22 described later, so that an opening of an inner can 23 of the container 22 described later can be closed and tightly closed. It is configured. On the panel 12 side of the opening / closing lid 20, a fixing groove 20B for fixing the opening / closing lid 20 to the case 11 is provided. A handle 21 is provided on the side of the opening / closing lid 20 at a predetermined interval from the panel 12, and the handle 21 is provided corresponding to a fixing groove 20 </ b> B provided in the opening / closing lid 20.

The water storage tank 30 is for storing water to be supplied into the steam generation chamber 25, and is provided in the case 11 and has an upper opening. A water level gauge (not shown) is provided on the side surface of the water storage tank 30, and predetermined water is injected into the water storage tank 30 from the water tank lid 11A using the water level gauge as a guide. A water supply pipe 38 is connected to a lower portion of the water storage tank 30, and the water supply pipe 38 is connected to the steam generation chamber 25. The water supply pipe 38 is provided with a water supply pump 34 and a solenoid valve 36 for supplying water in the water storage tank 30 into the steam generation chamber 25. The solenoid valve 36 is for preventing water supplied into the steam generation chamber 25 from flowing backward.

In addition, a container 22 is provided in the case 11 for accommodating a sterile medical material (not shown) and sterilizing the same with high-pressure and high-temperature steam. This container 22 is formed in a substantially cylindrical cup shape with one side opened to the opening / closing lid 20 side. The container 22 includes a metal inner can 23 made of stainless steel or the like and an outer can 24, and has a double can structure in which the inner can 23 is covered with an outer can 24 at a predetermined interval. . A sterilization chamber 22 </ b> A is formed inside the inner can 23, and a steam generation chamber 25 is formed between the inner can 23 and the outer can 24.

The periphery of the steam generation chamber 25 is sealed by an inner can 23 and an outer can 24, and the steam generation chamber 25 and the sterilization chamber 22 A are connected by a pipe 28. The pipe 28 is provided with a pressure regulating electromagnetic valve 27, and the steam generated in the steam generating chamber 25 flows into the sterilization chamber 22A through the pipe 28 by the operation of the electromagnetic valve 27. It is configured as follows.

The steam chamber pressure gauge 13 is connected to an upper portion of the steam generation chamber 25, and a water tank 25 A is provided at a bottom of the steam generation chamber 25. An electric heater 26 is provided in the water tank section 25A, and a lead wire (not shown) is connected to the heater 26. The lead wire is taken out of the steam generation chamber 25, and although not shown, one of the lead wires is connected to a commercial power source, and the other of the lead wires is also connected to a timer (not shown) and a power switch 19. Connected to commercial power.

A discharge pipe 35 is connected to the bottom of the water tank 25 A of the steam generation chamber 25. The discharge pipe 35 discharges high-temperature water and steam stored in the water tank 25A in the steam generation chamber 25 into the water storage tank 30. The discharge pipe 35 is connected to a lower part of the water storage tank 30 described later via a valve 37. ing. The discharge pipe 35 extends upward from below inside the water storage tank 30, and has a distal end opened toward the inside inside the water storage tank 30.

The discharge pipe 35 is provided with a spiral portion 35 A spirally wound below the water storage tank 30, and the high-temperature water and the steam stored in the steam generation chamber 25 are stored in the water storage tank 30. When discharged, the high-temperature water and steam can be cooled and decompressed by the spiral portion 35A. In addition, 11A is a water tank lid for supplying water into the water storage tank 30, and 32 is a drainage hose for draining the water stored in the water storage tank 30.

The valve 37 is opened when the steam in the sterilization chamber 22A is exhausted, and the valve 37 can be sufficiently sealed even if a small amount of dirt or scale is mixed in the discharged high-temperature water and steam. A ball valve is used. A detailed description of a ball valve that can be sufficiently sealed even if a small amount of dirt or scale is mixed is omitted since it has been conventionally known.

An exhaust pipe 29 is connected to the bottom of the sterilization chamber 22 A. The exhaust pipe 29 is connected to a water storage tank 30 via an electromagnetic valve 31. The exhaust pipe 29 is also spirally wound in the water storage tank 30, and then extends above the water storage tank 30 so that the end thereof is opened downward in the water storage tank 30. The solenoid valve 31 is for discharging steam from the sterilization chamber 22A.

Next, the operation of the high-pressure steam sterilizer 10 having the above configuration will be described. It is assumed that a commercial power supply is connected to the high-pressure steam sterilizer 10. First, the water tank lid 11A is removed, and purified water or water of the same quality as purified water is supplied into the water tank 30 to a predetermined water level while watching the water level gauge. Then, when the power switch 19 is turned on, the electromagnetic valve 36 is opened and the water supply pump 34 is operated, and water in the water storage tank 30 is supplied from the water supply pipe 38 into the steam generation chamber 25.

In this case, the water supply pump 34 operates until the water level detection sensor (not shown) in the steam generation chamber 25 operates to supply water in the water storage tank 30. When the water in the water storage tank 30 is supplied to the steam generation chamber 25, the water in the water storage tank 30 decreases. Therefore, the water is supplied to the water storage tank 30 to a predetermined water level while watching the water level meter, and the water supply is completed. At this point, the water tank lid 11A is closed.

When a predetermined amount of water is supplied into the steam generation chamber 25, the solenoid valve 36 and the water supply pump 34 are stopped, and commercial power is supplied to the heater 26. When a commercial power supply is supplied to the heater 26, the heater 26 heats, thereby heating water in the water tank 25A and generating high-temperature steam. When the high-temperature steam gradually fills the steam generation chamber 25 and, for example, the steam chamber pressure gauge 13 reaches 2.8 kg / cm 2, the steam generation chamber 25 is filled with a predetermined high-pressure high-temperature steam that can be sterilized. Then, the sterilization chamber 22A enters a sterilization standby state, and the power supply to the heater 26 is cut off.

Then, the handle 21 is rotated to the left, the opening / closing lid 20 is opened, and a predetermined amount of a predetermined sterilized substance is stored in the sterilization chamber 22A. Next, the cover 20 is closed, the handle 21 is inserted into the fixing groove 20B of the cover 20, and then turned right and tightened. Then, when the opening / closing lid 20 is properly tightened and a door lamp (not shown) is turned on, further tightening is further performed. Thereby, the container 22 is pressed by the packing 20A of the opening / closing lid 20, and the opening is closed.

Next, the sterilization time selection switch 16 is pressed, and an appropriate sterilization time for sterilization of the sterilized material stored in the sterilization chamber 22A is selected. That is, one of the sterilization times of 5 minutes, 7 minutes, and 10 minutes indicated by the lighting of the LED 17 is selected, and the start switch 15 is pressed. When the start switch 15 is pressed, the solenoid valve 31 and the solenoid valve 27 open, and the high-temperature steam generated by heating in the steam generation chamber 25 flows into the sterilization chamber 22A via the pipe 28 and the solenoid valve 27. .

At this time, since the pressure in the steam generation chamber 25 decreases, the heater 26 is heated, and the inside of the steam generation chamber 25 is maintained at a predetermined pressure with high-temperature steam. Then, the air in the sterilization chamber 22A is pushed out into the water storage tank 30 by the inflowing high-temperature steam through the exhaust pipe 29 and the electromagnetic valve 31, and the inside of the sterilization chamber 22A is replaced with the high-temperature steam. When most of the air in the sterilization chamber 22A is exhausted and the high-temperature steam flowing from the steam generation chamber 25 passes through the solenoid valve 31, the solenoid valve 31 closes.

When the solenoid valve 31 is closed and the pressure in the sterilization chamber 22A reaches a predetermined pressure and temperature (in this case, for example, the pressure is 2 kg / cm 2 and the temperature is 132 ° C.), the sterilization is started. A pressure detector (not shown) provided in the chamber 22A detects this, and the solenoid valve 27 is closed. At this point, the timer starts and sterilization starts. That is, the control device 33 displays the selected sterilization time on the digital display 18, and the displayed sterilization time counts down from the selected time.

In this case, the sterilization time is displayed in an easy-to-read number on the digital display 18 and the displayed time is counted down, so that the remaining sterilization time and then the sterilization of the sterilized material are awaited. In such a case, the remaining sterilization time can be grasped by an easy-to-read number only by visually recognizing the digital display 18. This makes it possible for anyone to see the sterilization end time accurately and reliably in minutes and seconds, and to know exactly how long to wait, even when sterilizing during surgery. And be able to. As a result, the annoyance of waiting time, such as how long to wait, can be eliminated, and the mental burden can be reduced.

Then, while the sterilization chamber 22A is maintained at a predetermined high pressure and high temperature, the sterilized material accommodated in the sterilization chamber 22A is sufficiently sterilized. Then, when the set time is counted down and the sterilization time ends, the control device 33 displays the sterilization end time on the digital display 18 as 0 minutes 00 seconds. When the sterilization is completed, the electromagnetic valve 31 is opened, and the inside of the sterilization chamber 22A and the inside of the water storage tank 30 are communicated by the exhaust pipe 29. Thereby, the high-pressure and high-temperature steam in the sterilization chamber 22A is discharged into the water storage tank 30 via the exhaust pipe 29 and the electromagnetic valve 31.

Then, when the high-pressure and high-temperature steam in the sterilization chamber 22A is discharged and the sterilization chamber pressure gauge 14 drops to substantially the atmospheric pressure, the opening / closing lid 20 is opened, and the sterilized substance stored in the sterilization chamber 22A is taken out. .

When the sterilized material in the sterilization chamber 22A is taken out, the sterilized material is stored in the sterilization chamber 22A again, the sterilization time is selected by the sterilization time selection switch 16, and the start switch 15 is pressed. Thereby, the next sterilized product is sterilized. In such a case, the water that has flowed into the steam generation chamber 25 is heated by the heater 26 if the sterilized material is sterilized several hundred times, so that the water is contaminated with impurities contained in the water. However, in this case, first, the drain hose 32 is tilted to drain the water in the water storage tank 30 into the bucket 39 (FIG. 6).

Next, when the ball valve 37 is gradually opened, the inside of the steam generation chamber 25 and the inside of the water storage tank 30 are communicated with each other by the discharge pipe 35, and the water in the steam generation chamber 25 is stored in the water storage tank via the spiral portion 35 A. The water is discharged into the bucket 30 and the bucket 39 is discharged from the fallen drain hose 32. In such a case, even when the water in the steam generation chamber 25 is at a high temperature and low pressure before being cooled, the high temperature water in the steam generation chamber 25 is cooled and depressurized by the spiral portion 35A, and then discharged from the drain hose 32 to the bucket 39. It will be drained inside.

When moisture remains in the sterilized material, it may be necessary to dry the sterilized material. In this case, the sterilized material is not immediately taken out after the opening / closing lid 20 is opened, but is left for a short time with the opening / closing lid 20 slightly opened. In this case, since the steam generation chamber 25 around the sterilization chamber 22A is heated, the sterilized material in the sterilization chamber 22A is heated at a predetermined temperature. As a result, the water in the sterilization chamber 22A is discharged out of the sterilization chamber 22A, and the sterilized product is dried.

As described above, the discharge pipe 35 connected to the steam generation chamber 25 extends upward from below inside the water storage tank 30, and the tip is opened downward from above the water storage tank 30. The discharge pipe 35 is provided with a spiral portion 35A. As a result, the high-pressure high-temperature water in the steam generation chamber 25 is once cooled and decompressed by the spiral portion 35A, discharged into the water storage tank 30 to be at atmospheric pressure, and then into the bucket 39 from the drain hose 32. Drained. Therefore, even when the water in the steam generation chamber 25 is high-pressure and high-temperature water or steam, the water can be drained by the drain hose 32 after the pressure is set to the atmospheric pressure in the water storage tank 30, so that the high-temperature water Can prevent the danger of burning hands and burns.

Further, although not shown, the discharge pipe 35A is passed through the water stored in the water storage tank 30 from below the water storage tank 30, and once drawn out onto the water surface, the leading end of the discharge pipe 35A is connected to the water surface. And the high-pressure and high-temperature water and steam in the steam generation chamber 25 may be cooled and decompressed by the spiral part 35 </ b> A and discharged into the water storage tank 30. In this case, the high-pressure and high-temperature water and steam in the steam generation chamber 25 are further cooled and decompressed by the spiral portion 35A in the water, and then discharged into the water storage tank 30. As a result, it is possible to surely prevent the risk that hot water blows out from the drain hose 32 and burns a hand or the like.

The spiral part 35 A spirally wound is provided in the water storage tank 30, but is not limited thereto. A meandering part in which the discharge pipe 35 is meandering is provided in the water storage tank 30, and the meandering part is provided. The present invention is effective even if the high-pressure high-temperature water passing through the discharge pipe 35 is cooled and depressurized and then discharged into the water storage tank 30.

[0044]

[Effect of the invention]

 As described in detail above, according to the invention of claim 1, the high-pressure steam sterilizer has a double-can body container constituting a steam generating chamber between the inner can and the outer can, and is formed in the inner can. A sterilizing chamber, an opening / closing lid for opening and closing the opening of the sterilizing chamber, a water storage tank for storing water supplied to the steam generating chamber, and a heater provided in the steam generating chamber. Heating the water in the steam generating chamber to generate high-pressure, high-temperature steam to sterilize the articles stored in the sterilizing chamber, and a discharge pipe for discharging the water in the steam generating chamber; Since a valve provided on the pipe is provided and the end of the discharge pipe is opened in the water storage tank, the high-pressure high-temperature water in the steam generation chamber can be discharged into the water storage tank once. As a result, even if the water in the steam generation chamber is high-pressure, high-temperature water or steam, the water can be discharged into the water storage tank to reach atmospheric pressure and then drained by the drain hose. Therefore, it is possible to prevent the risk that hot water blows out from the drain hose and burns the hands and the like as before, thereby greatly improving the safety.

According to the invention of claim 2, in addition to the above, after the discharge pipe extends from the lower part in the water tank to the upper part, the tip is opened toward the lower part in the water tank. Therefore, for example, after the discharge pipe is spirally wound in the water storage tank as described in claim 4, the high-pressure high-temperature water discharged in the steam generation chamber is cooled and depressurized and then discharged into the water storage tank. It becomes possible to discharge from the drain hose. As a result, the speed of the high-pressure high-temperature water discharged from the discharge pipe can be greatly reduced. Therefore, it is possible to prevent the equipment in the high-pressure steam sterilizer from being damaged due to the blowing of steam.

According to the invention of claim 3, in addition to claim 1 or claim 2, the discharge pipe passes through the water stored in the water storage tank and is once drawn out onto the water surface. Later, since the water is opened toward the water surface, the high-pressure and high-temperature water discharged in the steam generation chamber can be further cooled and depressurized before being discharged into the water storage tank. As a result, it is possible to prevent the high-pressure and high-temperature water discharged from the discharge pipe from being vigorously discharged into the water storage tank. Therefore, it is possible to prevent the equipment in the high-pressure steam sterilizer from being damaged by the blowing of steam.

According to the invention of claim 5, there is provided a control device for setting a sterilization time and displaying the set sterilization time on a digital display, and the control device controls the sterilization time from the start of sterilization. Since the countdown is displayed on the digital display, the remaining time of sterilization can be accurately displayed in easy-to-read numbers, and can be displayed in minutes or seconds. become. This makes it possible for anyone to ascertain the end time of sterilization with certainty. For example, even if sterilization is performed during surgery, it is possible to accurately know how long to wait. Therefore, the annoyance caused by the waiting time can be eliminated and the mental burden can be greatly reduced, and the convenience of the high-pressure steam sterilizer can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a high-pressure steam sterilizer of the present invention.

FIG. 2 is a piping connection diagram of the high-pressure steam sterilizer of the present invention.

FIG. 3 is a top view showing the inside of the case of the high-pressure steam sterilizer of the present invention.

FIG. 4 is a perspective view of the high-pressure steam sterilizer showing a state where an opening / closing lid is opened.

FIG. 5 is a longitudinal side view of the container showing a state in which steam is flowing into the sterilization chamber.

FIG. 6 is a diagram showing a state in which water in a water storage tank is drained into a bucket.

FIG. 7 is a diagram showing a state in which high-pressure and high-temperature water in a conventional steam generation chamber is drained into a bucket.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 High-pressure steam sterilizer 11 Case 11A Water tank lid 12 Panel 13 Steam chamber pressure gauge 14 Sterilization chamber pressure gauge 15 Start switch 16 Sterilization time selection switch 17 LED 18 Digital display 19 Power switch 20 Opening / closing lid 21 Handle 22 Container 22A Sterilization chamber 23 Inner can 24 Outer can 25 Steam generating chamber 25A Water tank 26 Heater 27 Solenoid valve 28 Pipe 29 Exhaust pipe 30 Water tank 31 Solenoid valve 32 Drain hose 33 Controller 34 Water supply pump 35 Discharge pipe 35A Spiral section 36 Solenoid valve 37 Valve 38 Water supply pipe

Claims (5)

[Utility model registration claims] 1. A container having a double can structure constituting a steam generating chamber between an inner can and an outer can, a sterilization chamber formed in the inner can, and an opening of the sterilization chamber can be opened and closed. An opening / closing lid for closing, a water storage tank for storing water to be supplied into the steam generation chamber, and a heater provided in the steam generation chamber, wherein the heater heats water in the steam generation chamber. A high-pressure steam sterilizer that generates high-pressure, high-temperature steam to sterilize articles stored in the sterilization chamber, comprising: a discharge pipe for discharging water in the steam generation chamber; and a valve interposed in the discharge pipe A high-pressure steam sterilizer, wherein a tip of the discharge pipe is opened in the water tank. 2. The high-pressure steam sterilizer according to claim 1, wherein the discharge pipe extends from a lower part in the water tank to an upper part, and has a tip end opened toward the lower part in the water tank. . 3. The discharge pipe according to claim 1, wherein the discharge pipe passes through the water stored in the water storage tank, is once drawn out onto the water surface, and is opened toward the water surface. The high-pressure steam sterilizer according to claim 2. 4. The high-pressure steam sterilizer according to claim 1, wherein the discharge pipe is spirally wound in the water storage tank. 5. A control device for setting a sterilization time and displaying the set sterilization time on a digital display, wherein the control device counts down the sterilization time from the start of sterilization and displays the countdown on the digital display. 5. The high-pressure steam sterilizer according to claim 1, wherein the high-pressure steam sterilizer is used.