JP2511063Y2 - Retort sterilizer tray structure - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a retort sterilizer for heating and sterilizing pouch foods, canned foods, and the like, and particularly to improve a tray arranged in the retort of the retort sterilizer. Specifically, the shape of the slit formed in the tray is changed.

[0002]

2. Description of the Related Art Pouch foods, canned foods, etc. are placed and stored on each tray arranged in multiple stages in a retort and sterilized by a heating medium such as hot water or steam sprayed in the retort. It has been subjected.

[0003] In a retort sterilizer for spraying a heating medium upward from a spray nozzle provided below the retort, a plurality of slits are formed on the bottom surface of the tray, and the heating medium is the slits. It is designed to rise through.

Conventionally, the slit is formed by, for example, opening a long hole in the bottom of the tray and fixing side plates on both sides of the opening so as to be orthogonal to the bottom of the tray. Until then, its width was said to be constant.

[0005]

Therefore, according to the conventional retort sterilization tray, most of the heating medium blown up from below the retort passes through the slits of each tray.

As a result, there is a drawback in that the heating medium does not come into sufficient contact with the sterilized object placed and stored in each tray, which adversely affects the heating and sterilization of the sterilized object.

On the other hand, although the sterilized object is heated by the atmosphere in the retort heated by the heating medium, the sterilized object is subjected to the required treatment because the atmosphere does not sufficiently flow into the inside of each tray. Has the disadvantage of requiring more time and heat than is necessary.

[0008] In a retort sterilizer of a type in which a heating medium is sprayed onto a sterilized object in a tray from a spray nozzle arranged laterally in the retort, the heating medium is discharged from a gap between the trays. Although the material to be sterilized is heated by entering the inside of the tray, the shape and height of the tray to be used differ depending on the type of material to be sterilized, so to spray the heating medium toward the gap between the trays, A mechanism for vertically moving the spray nozzle must be provided.

The present invention has been made in view of the above circumstances, and is to improve the slits of the trays so as to allow the heated atmosphere in the retort to flow into the respective trays.

[0010]

In order to achieve the above object, the present invention is for retort sterilization in which a slit is formed in the retort in which a substance to be sterilized is accommodated and a heating medium is formed on the bottom surface. The tray structure of the retort sterilizer is characterized in that the slit is formed in a tapered shape in cross section.

In particular, a pair of side plates facing each other is provided on the bottom surface of the tray, and a slit is formed so that the pair of side plates have a V shape.

[0012]

According to the tray structure of the retort sterilization apparatus according to the present invention, when the heating medium is sprayed from below toward the slits of the trays in the retort which are stacked in multiple stages, the slits are tipped. Since the gap between the parts has a narrow taper shape, the flow velocity of the heating medium is increased, and a reduced pressure state occurs in the slit part.

The atmosphere in the retort flows in the direction of the slits in the reduced pressure state, that is, toward the inside of each of the stacked trays.

The atmosphere inside the retort flowing into the inside of the tray is sufficiently heated by the heating medium flowing through the slit or the heating medium sprayed from above the retort.

Therefore, the sterilization object placed and stored in the tray is heated by the inflowing atmosphere and is subjected to the sterilization treatment.

[0016]

Embodiments of the tray structure of a retort sterilizer according to the present invention will be described below in detail with reference to the drawings.

FIG. 1 is a schematic view showing an example of a retort sterilizing apparatus, in which 10 is a retort, 12, 12, ... Are spray nozzles, and 20 is a tray.

The retort 10 is a metal canister having a cylindrical shape, one end of which is closed and the other end of which can be opened and closed by a sealing lid (not shown).

In the retort 10, the spray nozzles 12, 12, ... Are arranged above and below, and hot water, for example, is sprayed as a heating medium.

The hot water is sprayed from the spray nozzles 12, 12, ... Firstly, the pump P1, the valve V1, the pump P2,
Water is supplied into the retort 10 through the in-line heater IH and the valve V2, which is circulated and heated through the valve V3, the pump P2, the in-line heater IH and the valve V2, and then the valves V4 and V5 are opened. To be done.

On the other hand, the tray 20 is a tray made of stainless steel or the like. As shown in the drawing, a plurality of trays 20, 20, ... Are arranged in the retort 10 in a multi-stage manner. , ... Place and store items to be sterilized r (see FIG. 4) such as pouch foods and canned foods.

FIG. 2 shows this tray 20.
(A) is the top view, (b) is an enlarged view of the principal part of the XX 'cross section.

As is apparent from FIG. 2A, the tray 20 is composed of a bottom surface 22 having a rectangular shape and frames 24, 24, ... Is a support leg 26, 2 for supporting the upper tray 20 during stacking.
6, ... are fixed.

The bottom surface 22 has a large number of small holes 29, 2
.. are perforated, and four slits 28, 28, ... With the bottom surface 22 divided into three parts.
・ Is formed.

Further, as is apparent from FIG. 2 (b), the slits 28, 28, ... Are formed by folding a part of the bottom surface 22 upward, and particularly, the side plates 28a, 28a facing each other are provided. The slits 28, 28, ... Have a taper shape because the slits 28, 28, ...

Next, in FIG. 3, 20 is a tray in a multi-layered state, 18 is a carriage, and 12 and 12 are spray nozzles.

The dolly 18 is a movable car that holds a tray 20, and wheels 18a and 18a provided on the dolly 18 travel on rails 17 and 17 fixed below the retort 10.
The tray 20 on the carriage 18 can be easily arranged in the retort 10.

The spray nozzles 12, 12, ...
Is a slit 28 formed in each tray 20, 20, ... When the tray 20 is arranged in the retort 10.
28, ... Are arranged so as to be arranged vertically below.

Further, the frames 24, 24, ... Are also formed with small holes 29, 29 ,.

By the way, when hot water is sprayed from the spray nozzles 12 and 12 as described above, this results in each tray 20 and 2.
The slits 28, 28, ...
・ Passing through the slits 28, 28, ・
.. has a tapered shape with a constricted tip as described above, so that the flow velocity of the sprayed hot water increases when passing through the slits 28 ,.

As a result, the slits 28, 28, ... Are in a reduced pressure state as compared with the other spaces of the retort 10, so that the atmosphere of the retort 10 has a space between the trays 20 and the small holes 29, 29. , And so on to flow into the inside of the tray 20.

Therefore, depending on the atmosphere of the retort 10 heated by the sprayed hot water, each tray 20, 2
The objects to be sterilized r stored in 0, ... Are efficiently heated and sterilized.

Next, FIG. 4 is a perspective view showing the tray 20, and r is the object to be sterilized in the stored state.

As is clear from this figure, the object to be sterilized r
Are arranged between the slits 28, 28, respectively, and it can be seen that the slits 28, 28, ... Have a function of separating the sterilized object r.

Although the tray structure of the retort sterilizer is described in detail above, the present invention is not limited to this.

For example, the slits 28 are not limited to those in which four slits are parallel to each other as shown in the drawing, but they may be orthogonal to each other, or the number of slits may be five or more.

Further, as a means for forming the slit 28, it is also possible to fix a metal object having a tapered groove formed on the elongated hole formed on the bottom surface 22.

Although the tray 20 is for retort sterilization, it goes without saying that the retort sterilizer is not limited to the one shown in FIG.

[0039]

Since the tray structure of the retort sterilizer according to the present invention is constructed as described above, it has the following effects.

(1) According to the present invention, since the slit having a tapered cross section for passing the heating medium is formed on the bottom surface of the tray for retort sterilization, the flow velocity of the heating medium sprayed toward the slit. Is increased, and a reduced pressure state occurs here. As a result, since the atmosphere in the retort flows into the retort, there is an excellent effect that the sterilization object stored in the tray is efficiently heated and sterilized.

(2) In addition, as described above, heating the sterilized object,
Since the sterilization is efficiently performed, the excellent effect that the processing time and the amount of heat can be saved can be obtained.

(3) Further, the present invention has a simple structure and has an excellent effect that it is easy to implement.

[Brief description of drawings]

FIG. 1 is a schematic front view showing a retort sterilizer.

FIG. 2A is a plan view showing the tray of the present invention, and FIG.
Is an enlarged view of the main part of the XX ′ cross section in (a)

FIG. 3 is a front view showing the trays in a state where they are stacked in multiple stages.

FIG. 4 is a perspective view showing a state in which an object to be sterilized is stored in a tray.

[Explanation of symbols]

 r Disinfectant 10 Retort 12 Spray nozzle 20 Tray 22 Bottom 24 Frame 26 Support leg 28 Slit 28a Side plate 29 Small hole

Claims (2)

(57) [Scope of utility model registration request] 1. A tray for sterilization for retort, which is arranged in multiple stages in a retort and has a slit for passing a heating medium formed in a bottom surface of the tray for sterilization. The slit has a tapered sectional shape. The tray structure of the retort sterilizer, which is characterized by being formed as. 2. The retort sterilizer according to claim 1, wherein a pair of side plates facing each other are provided on the bottom surface of the tray, and slits are formed so that the pair of side plates have a V shape. Tray structure.