JPS5934258A - Steam pasturizer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Does the present invention apply to sterilized water? This relates to a steam sterilizer that sterilizes a bottle in a chamber filled with high-pressure steam to obtain a sterilized liquid.

In this type of steam sterilizer, the water to be sterilized in a bottle C is heated in a chamber filled with high-temperature, high-pressure steam to obtain a sterilizing solution Z. , and high, crystal high (1) steam χ is sealed, but the steam heat is 1: inside the damper: if there is residual nitrogen or unsaturated steam, the desired i!
The temperature of bacteria A could not be obtained, and even if the sterilization liquid was produced, if the internal pressure of the chamber was suddenly lowered by 7, the sterilization liquid in the bottle would immediately cause a bumping phenomenon and would squirt out of the bottle. However, the desired sterilizing solution is not obtained and the desired sterilizing solution is overflowed, resulting in an ugly product.Therefore, the conventional means for reducing the internal pressure of the sterilizing solution containing this kind of sterilizing solution is to fill the chamber with steam and open/close valves, etc. Z is closed and shut off, and then high-temperature, high-pressure steam 1 is slowly discharged through a closed passage provided in the discharge pipe 1;
I was there. In this case, the small passage has a hole diameter of extremely small dimensions, so... If this happens, it may become clogged and the internal pressure of the booyanper will not drop forever.

The present invention is designed for such point C: It is considered as a cage, and during the sterilization process (residual air or unsaturated steam
After the sterilization process, the steam is continued to be introduced into the chamber so that it can be supplied, and the electric heater in the boiler that generates high-temperature, high-pressure steam noise is cut off to gradually reduce the steam generation t, thereby reducing the chamber internal pressure. It is designed to reduce the

One embodiment of the present invention will be explained below with reference to two figures (11 is a bottle (21 (2
A sterilization chamber (31) for storing 1... is a chamber equipped with an opening/closing lid (4) that is closed via a gasket χ at the front opening, and a jacket space consisting of a double wall around the outer periphery. (5) ¥ is formed.

(6) is a steam generation boiler that produces high-temperature, high-pressure steam that fills the chamber (1) and the jacket space (51); The high-temperature, high-pressure steam χ is sent to the jacket space (51) through a steam pipe (8). 1o), steam trap (1υ and check valve 0 that opens on two sides of outside air side C)
I'm going to be drained after begging.

In this way, the temperature inside the chamber +11 is high due to the heat of the steam filling the jacket space (5). QfFtl2 A glass bottle (2+ (2+...) containing heated and pre-stored water to be sterilized.

Then, the steam sent into the jacket space (51
The vapor pressure inflows through the steam supply pipe (14 cm) which is open-connected through the chamber (1), and the gauge pressure inside the chamber (1) is 1.
．． The water to be sterilized and stored under pressure to P weight/d is heated to about 126° C. with this high-temperature, high-pressure steam to be steam sterilized to obtain 1 bacterial liquid χ.

Of course, before entering the chamber, there is an on-off valve 11 provided in advance with an exhaust pipe 11511Z.
61' is opened, the A pump (171 is driven) to create a negative pressure state, and the on-off valve (C) is opened.
[6) Close again, and then the steam supply pipe 114! By opening the on-off valve (131), high-temperature, high-pressure steam can easily flow into the chamber (11) and fill it.

However, during the steam sterilization described above, if there is residual nitrogen in the chamber (11) or if it is filled with unsaturated steam more than necessary, even if the desired high-temperature, high-pressure steam However, even if it is introduced into the chamber (11), the sterilization temperature, that is, the saturated steam temperature cannot be reached, and as a result, a sterilization liquid cannot be obtained.

However, during the steam sterilization described above, the slow exhaust valve fl'l of the bottom wall of the chamber 111 (general holder exhaust pipe (la) is opened for a certain period of time, and the slow exhaust valve fl'l having the small diameter flow path χ The residual air or unsaturated vapor accumulated at the bottom of the fil is discharged 7 and the desired sterilization liquid can be obtained.

After the predetermined sterilization process is completed and the sterilization liquid is obtained in the bottle +21+21..., the exhaust pipe 11 provided on the bottom wall of the chamber (11) has a slow exhaust valve +1'J\
Steam is sequentially discharged from the slow exhaust section 4 which is opened again and has a small diameter flow path χ! ft, on the other hand, the electric heater (7) in the steam generation boiler (61) is cut off.

As a result, the steam field supplied into the chamber ill is gradually reduced, and when the internal pressure within the chamber +11 is reduced to 0.5 E1 weight/- close to atmospheric pressure in a relatively short time, the exhaust pipe 0υ Normal exhaust valve (2
1) a: Open the circuit and quickly lower the atmospheric pressure to C2. Along with this, the temperature t of the sterilizing liquid in the bottle (21) is also lowered to a usable temperature.

As mentioned above, the present invention is designed to exhaust the residual air or unsaturated steam in the chamber during steam sterilization, so the water to be sterilized can be heated to the sterilization temperature, and the sterilization liquid can be heated to the sterilization temperature, and the sterilization liquid can be heated to the sterilization temperature as before. To obtain an easy-to-use steam sterilizer which can obtain sterilized liquid in a short time without causing any damage.

[Brief explanation of the drawing]

The drawing is a schematic cross-sectional view of a steam sterilizer according to the present invention. (1)...chamber, (2)...bottle, (6)...
・Steam generating boiler, (7)...Sulfur gas heater, (field...discharge pipe. Applicant: Sanyo Seiki Co., Ltd. and one other person 71-':・.

Claims (1)

[Claims] Chamber 1 in which a bottle containing water to be sterilized is stored - filled with high-temperature, high-pressure steam from a steam-generating boiler and using the heat of the steam to sterilize the water to be sterilized into a sterilizing liquid, during the steam sterilization ( 2. Then, the residual gas and unsaturated steam in the chamber are discharged for a certain period of time through a discharge pipe having a small diameter flow path χ connecting the inside of the chamber and the outside air, and after the steam sterilization process, the chamber 1 is continuously vented. A steam sterilizer in which electricity is cut off to an electric heater, which is the heat source of a connected steam generating boiler, and the high-temperature, high-pressure steam that fills the room is sequentially discharged from the discharge pipe.