JPS61289879A - Apparatus for controlling aging temperature of fermentation tank - Google Patents

Abstract

PURPOSE:To keep the aging temperature of a raw material to the optimum fermentation temperature all the year round, by uniformly heating or cooling the raw material charged in the fermentation tank according to the variation of ambient temperature condition. CONSTITUTION:Plural heat-exchange pipes 3 are inserted separately in the raw material 2 charged in the fermentation tank 1. When the aging temperature of the raw material 2 becomes higher than the optimum temperature, the freezing machine 11 of the medium-cooling apparatus 4 is operated, the thermal medium in the tank 9 is cooled by the evaporator 12, the temperature of the medium is detected by the temperature sensor 14 and adjusted with the temperature controller 15 and the medium is supplied through the medium-circulation 6 to the pipe 3 with the circulation pump 5 to effect the uniform cooling of the raw material 2. When the aging temperature is lower than a preset level, the electric heater 10 of the apparatus 4 is electrified to heat the medium, and the heated medium is supplied through the pump 5 and the channel 6 to the pipe 3 to effect the uniform heating of the raw material 2.

Description

[Detailed description of the invention] [Technical field to which the invention pertains]

This invention targets a brewing tank used for the production of miso, for example, and uniformly heats or cools the miso raw materials charged in the tank to adjust the ripening temperature during brewing to an appropriate temperature throughout the year. This invention relates to a fermentation temperature adjustment device for a brewing tank.

[Prior art and its problems]

When brewing the above-mentioned miso, it is known that the quality of the miso is greatly influenced by its maturing temperature. Generally, the fermentation of miso proceeds moderately at around 30°C, and if the ripening temperature is lower than this temperature, the ripening of miso will be delayed and the ripening efficiency will be low. Also, if the temperature is too high, the miso will change color and taste, making it impossible to produce high-quality miso. On the other hand, miso is 40-5
It is an intermediate-moisture food containing 0% water and has low thermal conductivity.For this reason, when miso is brewed by putting raw materials into a brewing tank, there are various problems in managing the ripening temperature. occurs. In other words, when miso raw materials are placed in a large brewing tank, the center of the tank has poor heat response compared to the peripheral area that touches the tank's peripheral wall, and if left as it is, fermentation heat will accumulate inside the tank. The temperature in the center of the miso becomes abnormally high compared to the surrounding area, causing excessive ripening in the center and causing the so-called doomsday phenomenon in miso.
do. In particular, in recent years, miso has become increasingly low in sodium chloride, and there is also a tendency to add yeast culture liquid during brewing, which has led to active yeast fermentation and the production of fermentation heat. It also has a great effect on raising the temperature of the semi-finished miso inside. When producing miso in this way, the aging temperature during the brewing process has an extremely important meaning in terms of quality control. In view of this, in the conventional miso brewing process, the temperature at which the miso is ripened during brewing is controlled using a simple method of indoor air conditioning in a room with a brewing tank installed. In an indoor air conditioning system like this,
As mentioned above, due to the low thermal conductivity of miso, there is a large variation in the temperature distribution inside the tank, and especially in the center of the tank, the temperature increases by 1 due to the accumulation of fermentation heat, resulting in the so-called disaster Lj. The occurrence of the phenomenon cannot be detected on the road side. For this reason, as a preventive measure against miso miso, some attempts have been made to use a 1'--oak-shaped brewing tank with the tank core removed, but even with this method, large-sized brewing tanks do not require much space inside the tank. It is not possible to eliminate variations in the temperature distribution of
It has not been done. As another means, it exhibits excellent properties in heat transport performance.
1. Using a pipe, insert this Heatba-Eve into the center of the brewing tank from the direction into the 1st part of the brewing tank. A method was also tested in which the excessive heat generated at the lever part was radiated to the row part. I'm not really trying. By employing this heat pipe, it is particularly effective in removing excess heat within the tank, thereby preventing the core burning phenomenon of miso. However, when the ambient temperature is low, such as during the winter, the heat pipe is of no use as it is. In other words, as mentioned earlier, the ripening temperature of miso is 3.
Around 01 is i! ! Since the temperature is high, in winter when the ambient temperature is low, it is necessary to raise the temperature of miso during brewing to an appropriate temperature. However, when using a long heat pipe stuck inside a tank, there is a limit to the capillary force due to the heat pipe's wick, and the heat pipe's 1-
Even if heat is applied from the outside to the @ part, the working fluid remains at the bottom of the pipe, and the heat pipe function does not work, making it impossible to generate sufficient heating within the brewing tank. On the other hand, as a heating means for the brewing tank in winter, a heating medium pipe is installed around the outer circumference of the tank.1. A possible method is to supply a high temperature heat medium such as hot water to the heat medium vibrator of ,', but even with this method, it is difficult to uniformly heat the entire area inside the tank due to the low thermal conductivity of Misoji I. Therefore, a sufficient effect cannot be exhibited in maintaining the appropriate μm formation temperature.

[Purpose of the invention]

This invention has been made in consideration of the above points, and is intended for example for the above-mentioned miso brewing, and is capable of uniformly heating or uniformly cooling raw materials placed in a brewing tank in response to fluctuations in ambient temperature conditions. The purpose of the present invention is to provide a fermentation temperature adjustment device for a L7 brewing tank so that the fermentation temperature of raw materials can be maintained at an appropriate fermentation temperature throughout the year.

[Key points of the invention]

In order to achieve the above object, the present invention includes a plurality of heat exchange pipes inserted from the outside and dispersed within the raw material charged in the tank, and a heat medium heating/cooling device of the device externally. , equipped with a heat medium circulation circuit piped between the heat exchange pipe and the heat medium heating/cooling device, and a heat medium circulation pump interposed in the heat medium circulation circuit, and adapted to the ambient temperature conditions. Heating medium heating/7: The heating medium whose temperature has been adjusted to 1 iJ by the operation selection of the heating or cooling means of the cooling device is circulated and supplied to the heat exchanger vibrator through the heating medium circulation circuit, and the appropriate temperature adjustment of the raw material ripening temperature in the brewing tank is carried out. It is configured to do so.

[Embodiments of the invention]

FIG. 1 is a system diagram of a temperature regulating device according to an embodiment of the present invention, and FIGS. 2 and 3 are configuration diagrams of different embodiments of the heat exchange pipe in FIG. 1, respectively. First, in FIG. 1, 1 is a brewing tank, and 2 is the raw material for miso that is stored inside the tank. According to the present invention, a large number of heat exchange vibrators 3 are inserted into the brewing tank 1 from the outside and inserted into the raw material 2 charged in the brewing tank 1, and the heat exchange pipes 3 and 4 are connected to each other. A heat medium circulation circuit 6 in which a heat medium circulation pump 5 is interposed is connected to the heat medium heating/cooling device shown in . Note that 7.8 is a heat medium inlet header pipe and an outlet header pipe connected to each heat exchange pipe 3. On the other hand, the heat exchange pipe 3 described above may be, for example, a U-shaped metal pipe as shown in FIG. 2, or a double metal pipe consisting of an inner tube and a long tube as shown in FIG. Ru. The heat medium heating/cooling device W4 includes a heat medium tank 9, and an electric heater 1 as a heat medium heating means provided immersed in the heat medium in the heat medium tank.
0, refrigeration la] + evaporation as a heat medium cooling means 7! 1i
12, a heat medium stirrer 13, a temperature controller 15 equipped with a temperature sensor 14, and the like. Next, the temperature adjustment operation of the ripening temperature for the brewing tank 1 having the above configuration will be explained. Except for the winter season when the air temperature is low, when the ripening temperature of the raw material 2 in the brewing tank 1 becomes higher than the appropriate ripening temperature due to the accumulation of fermentation heat, the heat medium heating/cooling device 4 The LJ refrigerator 11 is selected and operated, and the heat medium in the heat medium tank 9 is cooled through its evaporator 12. In this case, the heating medium temperature is detected by the temperature sensor 14, and the temperature controller I5 controls the operation of the refrigerator 11 based on the detected temperature value, so that the heating medium temperature reaches the desired cooling temperature (iN). It will be arranged. On the other hand, the heat medium stirred in the heat medium tank 9 by the heat medium stirrer 13 is transferred to the heat medium circulation pump 5.
As shown by the arrow, the heat medium is circulated and supplied to each heat exchange pipe 3 through the heat medium circulation circuit 6, and in this process, almost the entire area inside the brewing tank 1 is uniformly cooled, removing excess heat due to fermentation heat and removing it from the system. heat. Moreover, in this case, a plurality of heat exchange pipes 3 are inserted and arranged in a distributed manner so as to be in direct contact with the raw material 2 inside the brewing tank 1, so that even when the ambient temperature is high such as in the summer, the heat exchange pipes 3 can be inserted into the brewing tank 1. It becomes possible to maintain the ripening temperature of raw material 2 at an appropriate fermentation temperature over the entire range of . Note that if low-temperature ground water or the like is available in abundance in the vicinity, the above-mentioned refrigerator II can be replaced with a water cooler. On the other hand, when the ambient temperature is low and it is necessary to raise the ripening temperature during brewing to the appropriate fermentation temperature, such as in winter, the electric heater 10 of the heat medium heating/cooling device 4 should be
is selected and energized to heat the heat medium to about 30° C. corresponding to the appropriate fermentation temperature, and in this state the heat medium is supplied to each heat exchange pipe 3. From this point on, the fermentation temperature of the raw material 2 can be uniformly heated to a proper fermentation temperature throughout the entire region inside the brewing tank 1, and brewing can proceed. Although the above embodiments have been described with reference to the application to the brewing of miso, the application is not limited to miso noodles, and can be similarly applied to the brewing of other products. .

【Effect of the invention】

As described above, according to the present invention, a plurality of heat exchange pipes are inserted into the brewing tank from the outside and dispersed within the raw materials charged in the tank, and a heat medium heating/cooling pipe installed externally is connected to the brewing tank. The apparatus is equipped with a heat medium circulation circuit piped between the heat exchange pipe and the heat medium heating/cooling device, and a heat medium circulation pump interposed in the heat medium circulation circuit, and is equipped with The heating medium whose temperature has been adjusted by selecting the operation of the heating or cooling means of the corresponding heating medium heating/cooling device is circulated and supplied to the heat exchange pipe through the heating medium circulation circuit, and the temperature for ripening the raw material in the brewing tank is adjusted to an appropriate temperature. With this configuration, it is possible to uniformly heat and uniformly cool the raw materials throughout the entire area within the brewing tank in response to fluctuations in ambient temperature throughout the year, and to maintain the ripening temperature at the appropriate fermentation temperature. can.

[Brief explanation of the drawing]

FIG. 1 is a system diagram of a ripening temperature adjusting device according to an embodiment of the present invention, and FIGS. 2 and 3 are configuration diagrams of different embodiments of the heat exchange pipe in FIG. 1, respectively. In the figure, 1: Brewing tank, 2: Raw material, 3: Heat exchange pipe, 4: Heat medium heating/cooling device, 5: Heat medium circulation pump, 6: Heat medium circulation circuit, IO: Electric heat as heat medium heating means. Heater, 11:
Refrigerator as a heat medium cooling means.

Claims (1)

[Claims] 1) A plurality of heat exchange pipes inserted into the brewing tank from the outside and dispersed within the raw materials charged in the tank, a heat medium heating/cooling device installed externally, and the heat exchange pipes and the heat medium heating/cooling device installed externally. Equipped with a heat medium circulation circuit piped between the heat medium circulation circuit and the cooling device, and a heat medium circulation pump installed in the heat medium circulation circuit, the heat medium heating/cooling device can be heated or cooled according to ambient temperature conditions. A fermentation temperature adjustment device for a brewing tank, characterized in that a heat medium whose temperature has been adjusted by selecting an operation of a means is circulated and supplied to a heat exchange pipe through a heat medium circulation circuit to appropriately adjust the temperature for ripening raw materials in a brewing tank.