RU18345U1 - STERILIZER - Google Patents

Abstract

A sterilizer comprising a housing, a working chamber with a lid and a locking device, a steam generator, a condenser, pipelines with valves, a sterilization process control device, characterized in that the condenser is made in the form of axially arranged pipes with common end walls, while the cylindrical condensation chamber is connected by a pipe with the working chamber and the condensate drain pipe, and the external cavity of the cooling jacket is connected to the cooling water supply and drain pipes, the cross section of the water supply connecting the condensation chamber to the working chamber of the sterilizer is 5-30% of the cross-sectional area of the condensation chamber, and the volume of the condensation chamber is 0.5-5% of the volume of the working chamber of the sterilizer.

Description

PM 2000132081,

Useful, the model relates to medical equipment, namely, to the sterilization equipment of hospitals, laboratories.

A known sterilizer containing a housing, a working chamber with a lid and a locking device, a steam generator, a condenser, pipelines with valves, a sterilization process control device, the condenser is made in the form of a sealed vessel with cooling water inlet and outlet fittings, in the cavity of which there is a tubular condensation chamber made in the form of a coil. /cm. drawings 52.39.00.000. PS, TYPE 70.000. SV. Penza Automotive Engineering Plant.

After sterilization, the drying process of the processed material (for example, surgical linen) is carried out by creating a vacuum in the sterilization chamber, connected by a pipeline to the condensation chamber of the condenser. In this case, the steam from the working chamber of the sterilizer, entering the condenser, condenses on the cold walls of the tubular coil.

The disadvantages of the known sterilizer include the high residual moisture content of the processed material, due to the low efficiency of the condenser, since the area of the working surface of the condensation chamber or its volume is insufficient and make up only 0.1% of the volume of the working chamber of the sterilizer, the shape of the condensation chamber is in the form of a long narrow pipe / with a ratio of its length to diameter of about 100 / also does not contribute to the unhindered passage of steam leaving the processed material to cold the walls of the condensation chamber.

The proposed utility model allows to significantly reduce the residual moisture of the processed material by creating a greater degree of vacuum in the working and condensation chambers in less time.

The specified technical result is achieved in that in a sterilizer containing a housing, a working chamber with a lid and a locking device, a steam generator, a condenser, pipelines with valves, a sterilization process control device, the condenser is made in the form of axially arranged pipes with common end walls, while the cylindrical condensation the chamber is connected by a pipeline to the working chamber and the condensate drain pipe, and the external cavity of the cooling jacket is connected to the cooling supply and removal pipelines water, moreover, the cross section of the pipeline connecting the condensation chamber with the working chamber of the sterilizer is the cross-sectional area of the condensation chamber, and the volume of the condensation chamber is 0, from the volume of the working chamber of the sterilizer.

The essence of the proposed utility model is illustrated by a schematic drawing, where in FIG. shows a general view of the sterilizer.

The sterilizer includes a housing 1, a working chamber 2 with a cover 3 and a locking device 4, a steam generator 5, a condenser 6, pipelines 7, 8 with valves, a sterilization process control device 9. The condenser 6 is made in the form of axially arranged pipes 10, 11 with common end walls 12, while the cylindrical condensation chamber 13 is connected by a pipe 14 to the working chamber 2 of the sterilizer and the condensate drain pipe 15, and the external cavity 16 of the cooling jacket is connected to the supply pipelines 7, 8 and drainage of cooling water, moreover, the cross section of the pipe 14 connecting the condensation chamber 13 with the working chamber. 2 sterilizers, makes up 5-5-30% of the cross-sectional area of the cylindrical condensation chamber 13, and the volume of the condensation chamber 13 is 0.5-1-5% of the volume of the working chamber 2 of the sterilizer.

The sterilizer is as follows.

The steam generator 5 is filled with water. The sterilization process control device 9 is adjusted to the operating modes. The material to be processed / not shown in the figure / is put into the working chamber 2 and closed with a lid with a locking device 4. With the steam generator 5 turned on and its output in the specified mode, the steam enters the working chamber 2. The sterilization process takes place. With the expiration of the specified sterilization time, the steam access to the working chamber 2 from the steam generator is terminated. The pressure in the working chamber 2 is reduced. The condensate drain pipe 15 is blocked. In the cavity 16 of the condenser cooling jacket b, cooling water is supplied. In this case, on the inner walls of the condensation chamber 13, the steam condenses, the pressure in the chambers 13 and 2 decreases and a vacuum is created. Steam begins to leave the material being sterilized due to the imbalance of the system: the material being sterilized is the space of the working chamber 2, which communicates with the condensation chamber 13, because in the latter a vacuum is created, and in the sterilized

IPC A 61 L 2/00

STERILIZER

PM 20001320812

the material is not there. The drying efficiency of the sterilized material is determined by the path length of the steam from the processed material to the surface of the cold walls of the condensation chamber 13, the resistance to movement of the molasses of steam. At the same time, taking into account the strength characteristics of the capacitor b, operating under the same pressure as the working chamber 2 of the sterilizer, the acceptable performance of the capacitor, its material consumption, the optimal cross-section of the pipe 14 connecting the condensation chamber to the working chamber is 5 gZO% the cross-sectional area of the condensation chamber, and the volume of the condensation chamber, which is 0, from the volume of the working chamber of the sterilizer.

Using the sterilizer of the proposed design allows, in comparison with the analog, at the same time, to create a vacuum that determines the drying quality of the material to be sterilized, at least 0.8 kgf / cm2 in comparison with the value of 0.5 kgf / cm2 for the analog.

Claims (1)

A sterilizer comprising a housing, a working chamber with a lid and a locking device, a steam generator, a condenser, pipelines with valves, a sterilization process control device, characterized in that the condenser is made in the form of axially arranged pipes with common end walls, while the cylindrical condensation chamber is connected by a pipe with the working chamber and the condensate drain pipe, and the external cavity of the cooling jacket is connected to the cooling water supply and drain pipes, the cross section of the water supply connecting the condensation chamber to the working chamber of the sterilizer is 5-30% of the cross-sectional area of the condensation chamber, and the volume of the condensation chamber is 0.5-5% of the volume of the working chamber of the sterilizer.