JPS6336767B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to the mechanism of a multipurpose pressurizing device that can effectively carry out all processes when subjecting various food base materials to swelling, peeling, sterilization, soaking, or other pressure treatments. For more details,
It is an object of the present invention to provide a pressurizing device that can easily and accurately set pressure or temperature conditions suitable for each treatment, and also allows selection of the pressurizing medium to be used.

Conventionally, pressure changes or accompanying temperature changes are created by injecting and outflowing various pressurized media in a sealed pressure vessel, thereby causing swelling, peeling, sterilization, or immersion treatment of various food base materials. It is known to do the following. In order to effectively carry out each of the pressure treatments mentioned above, it goes without saying that it is necessary to set pressure or temperature conditions suitable for each treatment.
is necessary, especially the pressure (temperature) pattern during pressure (temperature) rise and pressure (temperature) fall (i.e.
The selection of rapid change or slow change) is an extremely important factor in determining the quality of processed foods, and it is required to change it appropriately for each process.

In addition, even when performing the same processing, in order to improve the quality of the food to be processed, it is necessary to adopt pressure (temperature) conditions depending on the type, size, or shape of the food being processed. It is also desirable to use the pressurized medium that is most suitable for each process.

In this way, in order to effectively implement each process even if the same pressure process is used, it is necessary to set pressure (temperature) conditions and pressure (temperature) rise/fall patterns according to each process, and also to set the pressure (temperature) rise/fall pattern according to each process. It is difficult to perform all processes with the same pressurizing device due to equipment functionality issues, so it is difficult to perform all processes with the same pressurizing device. Currently, each pressure treatment is performed separately, and there is currently no multipurpose pressurization device that can effectively carry out all pressure treatments such as swelling, peeling, sterilization, and soaking of food base materials. The present invention provides a multipurpose pressurizing device that can effectively carry out pressurizing treatments such as swelling, peeling, sterilization, and soaking of food base materials even with a single pressurizing device.

An embodiment of the multipurpose pressurizing device according to the present invention will be described with reference to the drawings.

First, numeral 1 is a sealable pressure vessel, and numeral 2 is a lid portion that can be opened and closed or detached to allow loading and unloading of objects to be treated.

Next, 3 is a pressurized medium instantaneous discharge pipe equipped with an instantaneous opening/closing valve 4, and 5 is a pressurized medium slow discharge pipe equipped with a slow opening/closing valve 6.

After the pressure treatment is completed, with the first valve closed,
By opening the other valves, instantaneous pressure reduction or slow pressure reduction can be selected, and the desired pressure reduction operation can be effectively carried out. In addition, when instantaneous depressurization is performed, the object to be processed inside the pressure vessel will move along with the rapid discharge of the pressurized medium, and there is a risk that the object to be processed will collide with the vicinity of the discharge pipe, etc., and cause damage. Therefore, it is preferable that the pressurized medium instantaneous discharge pipe 3 is disposed at two or more locations as symmetrically as possible with respect to the pressure vessel 1, as shown in the figure.

Damage to the object to be processed during instantaneous depressurization can be almost avoided by the above configuration, but as shown in the figure,
If the object-filled container 7 made of a porous or mesh-like base material is built into the pressure vessel, damage during depressurization can be completely prevented. Furthermore, if the filling container 7 is connected to a support rotating shaft 9 powered by a motor 8 so as to be rotatable, uniform heat treatment can be performed on all the objects to be treated, and even when the pressure is reduced, the objects to be treated can be heated more easily. Collisions and the resulting adhesion to each other can also be prevented.

Next, reference numeral 10 in the figure is a heating jacket installed around the outer surface of the body of the pressure vessel 1, and is connected to an oil bath outside the heat storage and pressure storage tank via a circulation pipe 11 and a circulation pump 12. The structure allows the heating medium inside to circulate. Although the heating jacket 10 is not necessarily essential to the pressurizing device of the present invention, it can bring the temperature inside the pressure vessel to a predetermined set temperature, that is, the temperature of the pressurizing medium as quickly as possible, and can also When steam is used as the pressure medium, it is also effective in preventing dew condensation on the inner wall of the pressure vessel.

Next, 13 in the figure is a heat storage and pressure storage tank surrounding an oil bath 14 filled with a heating medium such as silicone oil, which is supplied from a compressor 15 or a boiler 16 via pressure pipes 17 and 18. The pressurized medium is adjusted to a predetermined pressure and temperature in the same tank.

As a heating mechanism for the heat storage and pressure storage tank, in addition to surrounding the oil bath, any mechanism such as a built-in heater in the tank or external direct heating using a burner or the like may be adopted.

Regarding the temperature adjustment of the pressurized medium (including the pressure increase accompanying the temperature adjustment), the heater 20 built into the oil bath is operated as appropriate by the control action of the temperature indicating controller 19 installed in the oil bath 14. By adjusting the heating medium temperature,
The temperature of the pressurized medium in the heat storage and pressure storage tank is adjusted and set to a desired value, and confirmed using the thermometer 21 (pressure gauge 22). Pressure adjustment is basically performed by increasing/decreasing the amount of pressurized medium supplied to the heat storage and pressure storage tank, and by opening/closing the pressure reducing/pressure regulating valve 23, and checking the pressure using the pressure gauge 22.

Although the diagram shows the supply mechanism to the heat storage/pressure storage tank consisting of two lines of steam and pressurized gas, it is also possible to connect cylinders pressurized with other gases to the heat storage/pressure storage tank. It is also possible to prepare a desired gas mixture in the temperature/pressure storage tank by opening/closing the pressure sending valve 24 in the middle of the pressure sending pipe.

The pressurized medium adjusted to a predetermined pressure and temperature in the heat storage/pressure storage tank is supplied with an instantaneous opening/closing valve 25 and a slow opening/closing valve 27 through a pressurized medium supply pipe 26 connected to the pressure vessel 1. It will be carried into the same pressure vessel.

A slow opening/closing valve 27 and an instant opening/closing valve 25 are attached to the same supply pipe 26 in series or in parallel (not shown) as shown in the figure, and when connected in series, unused valves are kept open, and when connected in parallel, By closing unused valves and opening and closing the desired valves, pressurized medium can be injected according to the type of pressurizing process to be performed, and as a result, the pressure or temperature inside the pressure vessel 1 can be increased to the desired level. It can be a pattern.

Next, 28 in the figure is a pressurized medium supply circulation pipe that connects the pressurized container 1 and the heat storage/pressure storage tank 13, similar to the supply pipe 26, and 29 in the figure indicates a fan built in the middle of the pipe. .

After the start of the process of supplying the pressurized medium into the pressure vessel through the supply pipe 26, the temperature storage/pressure storage tank 13, Pressurized medium supply pipe 26, pressure vessel 1 and pressurized medium supply circulation pipe 28, circulation of pressurized medium in the above circulation system,
It promotes flow and is particularly effective in maintaining the temperature inside the pressure vessel during slow pressure rise or long-term pressure treatment, and in controlling humidity.

In addition, in the above explanation, needle type valves are usually used for slow opening/closing valves, pressure reducing/pressure regulating valves, pressure sending valves, and valves, and piston type valves or globe valves are used for instant opening/closing valves. is preferred.

Next, specific usage modes for using the apparatus of the present invention in various pressure treatments will be described.

First, when subjecting the milled and refined barley to the expansion treatment, the milled and refined barley grains are carried into the rotatable material filling container 7 in the pressure vessel 1, the lid 2 is closed, and the pressure vessel 1 is closed.
Seal it tightly.

Next, the boiler 16 is operated to prepare saturated steam, the pressure sending valve 24 is opened, and the steam flows into the heat storage/pressure storage tank 13.

The pressure reducing/pressure regulating valve 23 and the heater 20 are operated and activated as appropriate to adjust the steam pressure in the same tank to a gauge pressure (all pressure units hereinafter indicate gauge pressure) of 10 Kg/cm ² . After that, the instantaneous opening/closing valve 25 is fully opened, and then the slow opening/closing valve 27 is gradually opened to bring the pressure inside the pressure vessel 1 to 7 kg/cm ² in about 10 minutes.

At this time, the filling container 7 also starts rotating at the same time as the valve 27 is opened.

After that, the instantaneous opening/closing valve 25 and the valve 30 are closed, and the instantaneous opening/closing valve 4 on the pressurized medium instantaneous discharge pipe 3 is opened all at once, and the pressure inside the pressure vessel is instantaneously reduced to complete the main expansion process. do.

The puffed barley obtained under the above-mentioned conditions, i.e., from slow pressure increase (temperature rise) to instantaneous pressure reduction, exhibits an appetizing golden color, has a pleasant roasted flavor, and is porous. (Swelling state) was also uniform and moderate.

Next, when peeling ginger Prepare saturated steam at / ^cm2 .

At this time, the circulation pump 12 is started, and the high temperature silicone oil in the oil bath 14 is supplied to the heating jacket 10 through the circulation pipe 11, and the pressure vessel 1 is
Warm it to some extent.

Next, the slow opening/closing valve 27 is fully opened and the instantaneous opening/closing valve 25 is opened all at once, increasing the pressure inside the pressure vessel 1 to approximately 10 kg/cm ² in approximately 1 second.

At this time, at the same time as the valve is opened, the rotation of the object-to-be-processed container is also started.

After maintaining the same pressure in the same state for 30 seconds, the instant on-off valve 25 is closed, and the instant on-off valve 4 on the pressurized medium instant discharge pipe 3 is opened all at once to instantly reduce the pressure inside the pressure vessel. The main peeling process is completed.

In the apparatus of the present invention, the pressurized medium instantaneous discharge pipe is disposed symmetrically with respect to the pressure vessel, and since the ginger is located in the processing object filling vessel, even during instantaneous depressurization, there is no possibility that the pressurized medium will be discharged to the inner wall of the pressure vessel or There was no visible damage caused by the ginger comrade's collision.

When peeling ginger under the above-mentioned conditions, i.e., instantaneous pressure increase (temperature increase) → pressure maintenance → instantaneous depressurization, the peeling process can be done properly without changing the original spicy flavor and aroma of ginger. can be done.

Next, when whole-grain koshiyo is subjected to sterilization treatment (skin sterilization), after carrying the whole-grain koshiyo into the processing object filling container in the same way as before, saturated steam is supplied from the boiler to the heat storage/pressure storage tank and flows into it. At the same time, the compressed air prepared by the compressor 15 is sent to the pressure sending valve 2.
4 is opened, the steam flows into the heat storage/pressure storage tank, and the pressure reducing/pressure regulating valve 23 and heater 20 are operated as appropriate to prepare mixed steam of 2.7 Kg/cm ² and 140°C.

At this time, the pressure vessel 1 is heated in advance using the heating jacket 10, as in the case of peeling the ginger.

At the same time as starting the rotation of the container filled with the material to be treated, pressurization is performed in the same manner as in the case of ginger, and the pressure container 1 is
The internal pressure is increased to 2Kg/cm ² in about 1 second. (Temperature inside the pressure vessel is 140°C) After maintaining the same pressure in the same state for 10 seconds, the instantaneous opening/closing valve 25 is closed, and the slow opening/closing valve 6 on the pressurized medium slow discharge pipe 5 is opened until the pressure inside the pressure vessel reaches
The pressure is gradually opened to return to normal pressure in about 20 seconds, and the main sterilization process is completed. When sterilizing grain koshiyo (skin sterilization) using air-mixed steam as the pressurizing medium under the set conditions described above, i.e., instantaneous pressure increase (temperature rise) → pressure maintenance → slow pressure reduction, whole grain koshiyo is used. The coliform group in the epidermis was completely killed without any change in the spiciness of the food.

Moreover, by using air-mixed steam, the epidermis did not become wet and there were no changes in physical properties. As detailed above, various food base materials can be expanded, peeled, and
When subjecting to pressure treatment such as sterilization, in order to carry out those treatments effectively, it is necessary to adopt the setting conditions and pressurizing medium according to each pressure treatment, and if you deviate from these, , with unsatisfactory results,
High quality processed products cannot be obtained.

However, when using the pressurizing device of the present invention, the most suitable pressurizing conditions and pressurizing medium for each pressurizing process can be set extremely easily and accurately, and therefore various pressurizing processes can be effectively carried out. Therefore, it can be said that the pressurizing device of the present invention has an extremely wide range of uses.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing an embodiment of the multipurpose pressurizing device of the present invention. DESCRIPTION OF SYMBOLS 1... Pressure vessel, 2... Lid part, 3... Pressurized medium instant discharge pipe, 4... Instant opening/closing valve, 5... Pressurized medium slow discharge pipe, 6... Slow opening/closing valve, 7... Processed material filling container, 8... Motor, 9...Support rotation shaft, 1
0...Heating jacket, 11...Circulation pipe, 12...
Circulation pump, 13...heat storage/pressure storage tank, 14...oil bath, 15...compressor, 16...boiler,
17, 18...Pressure pipe, 19...Temperature indicating controller, 20...Heater, 21...Thermometer, 22...Pressure gauge, 23...Pressure reduction/pressure adjustment valve, 24...Pressure feeding valve, 25...Instant opening/closing valve, 26 ... Pressurized medium supply pipe, 27... Slow opening/closing valve, 28... Pressurized medium supply circulation pipe, 29... Fan, 30... Valve,
31... Hygrometer, 32... Pressure gauge, 33... Safety valve, 3
4... Valve, 35... Water supply valve, 36... Drain valve, 37... Heater, 38... Temperature indicating controller, 3
9...Pressure gauge, 40...Water pipe, 41...Cylinder joint.

Claims (1)

[Scope of Claims] 1. A pressurized medium slow discharge pipe equipped with a lid part that can be opened and closed to allow the object to be processed to enter and exit and a slow opening/closing valve, and two or more pressurized medium instantaneous discharge pipes equipped with instantaneous opening/closing valves. A pressure vessel with pipes arranged in symmetrical directions, a heat storage tank that can adjust the pressurized medium to be supplied into the pressure vessel to the desired temperature and pressure, and a pressurization tank equipped with an instant opening/closing valve and a slow opening/closing valve. A multipurpose pressurizing device, characterized in that it is communicated via a medium supply pipe. 2. It has a lid part that can be opened and closed to allow the material to be processed to enter and exit, a pressurized medium slow discharge pipe equipped with a slow opening/closing valve, and two or more pressurized medium instantaneous discharge pipes equipped with instant opening/closing valves arranged in symmetrical directions. A pressurized medium supply pipe and a fan equipped with an instantaneous opening/closing valve and a slow opening/closing valve are installed. A multi-purpose pressurizing device, characterized in that the device is connected to one another via one or more built-in separate pressurizing medium supply circulation pipes. 3. It has a lid part that can be opened and closed to allow the material to be processed to enter and exit, a pressurized medium slow discharge pipe equipped with a slow opening/closing valve, and two or more pressurized medium instantaneous discharge pipes equipped with instantaneous opening/closing valves arranged in symmetrical directions. A pressure vessel with a built-in container for filling the material to be processed made of a porous or mesh-like base material, and a heat storage and pressure storage tank capable of adjusting the pressurized medium to be supplied into the pressure vessel to a desired temperature and pressure. A multi-purpose pressurizing device, characterized in that the pressurizing medium is connected through a pressurizing medium supply pipe equipped with an instantaneous opening/closing valve and a slow opening/closing valve.