JP3074835B2 - Food processing method and apparatus by detonation liquid pressure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a detonation liquid pressure food processing method and a device for easily obtaining a high impact liquid pressure.

[0002]

2. Description of the Related Art It is known that applying a high pressure to food during the treatment of food is sometimes effective.

[0003] For example, in the case of meat, the meat after slaughter becomes rigid if left untreated. This is because the myofibrils are hardened. Therefore, when the meat is frozen and stored, a method of applying a static ultrahigh pressure for 5 to 10 minutes to break the myofibrils and soften the meat is adopted. Further, in the case of beverages or foods containing a large amount of liquid, when the above-mentioned ultra-high pressure is applied, sterilization is performed by the pressure.

[0004] As a method of obtaining the above static ultra-high pressure,
Cold Isostatic Press (CIP: Cold Isostat)
ic Pressing) is typical.

[0005] However, applying a static ultra-high pressure for a long time as described above results in a change in the taste of food, which is not preferable. Further, the apparatus itself has problems such as high equipment cost, difficulty in mass processing in a short time, and a large required installation floor area.

Therefore, instead of this, it has been proposed to apply an ultra-high voltage instantaneously. The following method is known as a typical method itself for obtaining such an ultra high pressure as a hydraulic pressure. (A) A method of firing a bullet into a liquid (b) A method of burning an explosive in a liquid (c) A method of colliding a piston accelerated by gas pressure or the like with a liquid surface

[0007]

However, when the food is treated by applying an ultra-high pressure instantaneously by the above-mentioned methods (a) to (c), the common or each of the following items 1 to 12 is applied. Has inherent problems. 1. The whole or part of the inner wall of the container is directly exposed to the high temperature and high pressure field. 2. Use dangerous and expensive explosives. 3. Generate loud noises. 4. There must be restrictions on the installation location due to the danger. 5. It is difficult to significantly change the ultimate pressure. 6. Not suitable for repeated operation in a short time. 7. Large equipment is required. 8. Moving parts such as pistons need to be replaced. 9. Consideration must be given to pressure-resistant design because the duration of pressure is long. 10. Solids should remain in the hydraulic chamber. 11. It is difficult to perform maintenance and inspection due to the complicated structure of the device. 12. Only one impact water pressure can be obtained in one shot.

That is, 1 to 6, 10, 12 in the method (a), 1 to 7, 9 to 12 in the method (b), and 1, 8, 9 in the method (c). , 11,12.

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the conventional method, and provides a method and apparatus for treating food by detonation liquid pressure, which can be operated safely and repeatedly in a short time, and can be processed at a high pressure for a very short time. The purpose is to provide.

[0010]

SUMMARY OF THE INVENTION According to the present invention, there is provided a food processing method using detonation liquid pressure, wherein a detonation wave generated by igniting a combustible air-fuel mixture converges with its progress. This is achieved by transmitting the high pressure obtained in the converging section to a liquid and converting it to a liquid pressure, and pressurizing the foodstuff through the membrane or directly by the liquid pressure.

[0011] Further, with respect to an apparatus for carrying out the above method, a combustion chamber having a sectional area decreasing from one end to the other end, an ignition chamber receiving fuel supply and having an ignition plug disposed therein, A plurality of guide paths that extend from the chamber and communicate with one end of the combustion chamber, and a hydraulic pressure chamber connected to an opening of the other end of the combustion chamber, which is a minimum cross-sectional area;
The liquid pressure chamber is obtained by containing a food which is subjected to liquid pressure directly through the membrane or directly.

[0012]

According to the present invention, the food is treated in the following manner. First, a combustible mixed gas having a substantially stoichiometric mixture ratio is filled in a combustion chamber, an induction passage, and an ignition chamber which can communicate with each other. Next, ignition is performed in an ignition chamber. When ignited, the flame advances in the combustion chamber via a taxiway due to detonation. At this time, since the respective guide paths have the same path, the respective guide path flames simultaneously reach one end of the combustion chamber. In the combustion chamber, the flame propagates toward the other end,
Since the cross-sectional area of the combustion chamber decreases toward the other end, the flame pressure increases and reaches a maximum value at the other end. Since the hydraulic chamber is connected to the opening at the other end and the liquid surface faces the opening, the pressure is transmitted to the liquid in the hydraulic chamber. The pressure of the liquid in the hydraulic chamber is applied to the food through the membrane or directly to the food to be processed.

[0013]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a longitudinal sectional view of the first embodiment of the present invention. In the figure, reference numeral 1 denotes a combustion chamber, which has a downward conical shape and has a maximum cross-sectional area at the upper end 1A and a minimum cross-sectional area at the lower end 1B to form a convergent portion.

The inner wall of the upper end portion 1A of the combustion chamber 1 is slightly curved upward, and a plurality of hole-shaped guide paths 2 communicate therewith. The plurality of guide paths 2 are converged on a dispersion space 3 in the shape of a disc space above. An ignition chamber 4 extending upward is communicatively connected to the dispersion chamber 3. An ignition plug 5 operated by an ignition device 6 is provided at an upper portion of the ignition chamber 4, and a fuel supply source 9 and an oxidant supply source 10 are connected via flow meters 7 and 8, respectively. . Reference numeral 11 denotes a pressure gauge for checking the pressures in the ignition chamber 4 and the combustion chamber 1.

A lower end 1B of the combustion chamber 1 is open, a hydraulic chamber 12 is connected to the lower end 1B, and a processing device 13 using hydraulic pressure is provided directly below the hydraulic chamber 12. The hydraulic chamber 12 contains a liquid such as water as a pressure medium, and its liquid level is lower than the lower end 1B of the combustion chamber 1 as shown in the figure.
, Or may be formed of a tough and easily deformable film body. The hydraulic chamber 12 is connected to a pipe 14 for venting air via a valve, and a liquid supply device 15 for supplying hydraulic water or the like via a valve.

The processing apparatus 13 contains therein food to be processed through a membrane or under direct pressure, for example, food containing a large amount of meat and water.

Further, the combustion chamber 1, the guide path 2, the dispersion chamber 3
Also, one vacuum pump 17 for vacuuming the ignition chamber 4 is connected.

In the apparatus of the present embodiment, the generation of high pressure hydraulic pressure and the processing of food using the same are performed as follows. First, the food 16 to be processed is set in the processing chamber 13. Next, the inside of the ignition chamber 4, the dispersion chamber 3, the guide path 2, and the inside of the combustion chamber 1 are set to a predetermined degree of vacuum by the vacuum pump device 17. Thereafter, the hydraulic chamber 12 and the processing chamber 13 are filled with a liquid such as water, and the igniting chamber 4, the dispersion chamber 3, the induction path 2, and the combustion chamber 1 contain flammable gas having a substantially stoichiometric mixture ratio. , A fuel supply source 9 and an oxidant supply source 10. After the setting is completed, the ignition plug 6
Activate A detonation occurs in the ignition chamber 4 due to the ignition, and the flame is propagated to the upper end 1A of the combustion chamber 1 through the dispersion chamber 3 and the guide path 2. At this time, the paths of the plurality of taxiways 2 are set to be equal to each other.
At the same time reaches the upper end 1A. In the combustion chamber 1, the flame proceeds from the upper end 1A to the lower end 1B. However, since the cross-sectional area of the combustion chamber 1 gradually decreases downward, the pressure increases, and the lower end 1B has an extremely high pressure. Become. The opening of the lower end 1B of the combustion chamber 1 has a hydraulic pressure chamber 1
Since the liquid surface of the liquid in 2 faces, the high pressure is propagated from the liquid surface into the liquid, and an impact liquid pressure is applied to the food 16 accommodated in the processing chamber 13 to perform the processing. Thereafter, the food can be taken out and the above-mentioned steps (1) to (5) can be repeated to repeat the treatment.

FIG. 2 shows the detonation hydraulic pressure in the present embodiment in concrete terms with numerical values. The figure shows the result of pressure measurement in the vicinity of the liquid surface facing the other end 1B of the combustion chamber 1. When the gas pressure at the center of the combustion chamber is 370,000 atmosphere, the liquid pressure is generated for about 15 μsec. In the meantime, primary and secondary waves were obtained. The primary wave was 3200 kgf / cm ² and the secondary wave was 3500 kgf / cm ² . Note that this pressure can be easily adjusted by adjusting the gas pressure (amount) and the mixing ratio of the gas charged into the combustion chamber.

Next, an apparatus according to a second embodiment of the present invention will be described with reference to FIG. In the drawing, the same parts as those of the previous embodiment shown in FIG. 1 are denoted by the same reference numerals, and description thereof will be omitted.

In this embodiment, the combustion chamber 1 'is formed in a horizontal shape extending in the radial direction. The combustion chamber 1 ′ has a shape in which the cross-sectional area decreases toward the center by the upper wall surface of a part of a substantially spherical surface that bulges downward. An appropriate number of grooves 1'C toward the center are formed radially on the upper wall surface,
A combustion chamber 1 ′ communicates with the hydraulic chamber 12 at the center.

According to the apparatus of this embodiment, it is convenient when the dimensions of the apparatus cannot be increased. The operation is the same as that of the previous embodiment. After the flame reaches the peripheral portion 1'A, which is one end of the combustion chamber 1 ', from the guide path 2, the flame travels toward the central portion 1'B, which is the other end. proceed. As it proceeds, the pressure becomes very high as the cross-sectional area decreases. Then, the high pressure is transmitted to the liquid in the hydraulic chamber 12 and
Then, the shock hydraulic pressure is applied to the food 16 to perform the processing.

[0024]

Since the present invention is configured as described above,
Compared with the conventional method, the method can perform shock treatment with a sharp rise and excellent characteristics easily, and the level of the impact pressure depends on the initial filling gas pressure of the detonation device. As a result, the pressure controllability is excellent, and the effect of easily setting optimum conditions according to the size of food can be obtained.

Further, according to the apparatus of the present invention, since explosives are not used unlike the prior art, the apparatus is not restricted by the setting, and it is possible to continuously generate an impact pressure, so that a mass production system can be realized. The effect that diversion of can be achieved is obtained.

In addition, there is also an effect that the meat is softened and the food is sterilized without changing the taste of the food.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a device according to a first embodiment of the present invention.

FIG. 2 is a diagram illustrating an example of a hydraulic pressure waveform in the apparatus in FIG. 1;

FIG. 3 is a sectional view of the device of the second embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Combustion chamber 1 'Combustion chamber 1A One end (upper end) 1'A One end (peripheral part) 1B Other end (lower end) 1'B Other end (central part) 2 Taxiway 4 Ignition chamber 5 Spark plug 12 Hydraulic chamber 13 Processing chamber 16 Food

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A23L 1/01 A23L 3/015 B30B 5/00 A61L 2/02

Claims (2)

(57) [Claims] 1. A detonation wave generated by igniting a combustible air-fuel mixture converges with its progress, and a high pressure obtained in a converging section is transmitted to a liquid to convert it into a liquid pressure. Food processing method using detonation liquid pressure to pressurize food directly or directly 2. A combustion chamber having a cross-sectional area decreasing from one end to the other end, an ignition chamber provided with an ignition plug receiving fuel supply, and a branch extending from the ignition chamber and extending from one end of the combustion chamber. A plurality of guide paths having the same path communicating with each other, and a hydraulic chamber connected to an opening at the other end, which is a minimum cross-sectional area of the combustion chamber. A detonation liquid pressure food processing device that stores food that is directly subjected to hydraulic pressure.