JP6907010B2 - Gas volume calculation method and calculation device for carbonated drinks in containers - Google Patents

Description

The present invention relates to a gas volume calculation method and a calculation device for a carbonated beverage in a container.

Generally, in the production and management of carbonated beverages in containers, the gas volume is measured, and it is confirmed or inspected that the measured gas volume is within a predetermined range.
For such a gas volume, the temperature and pressure of a carbonated beverage (material) in a container are measured, and the gas volume at a standard temperature of 20 ° C. is calculated from the tables (FIGS. 5 and 6) published in non-patent documents. In the tables shown in FIGS. 5 and 6, the vertical axis shows the temperature (° C.) and the horizontal axis shows the pressure (MPa). FIG. 5 shows the pressure in the range of 0 to 0.25 MPa, and FIG. 6 shows the pressure in the range of 0.26 to 0.26. It is in the range of 0.50 MPa. In the notation of these tables, the gas volume (vol) indicates a magnification, and for example, 1.0 (vol) is 1.0 times the capacity used as a reference.

The method of obtaining the gas volume using the tables shown in FIGS. 5 and 6 is, for example, when the liquid temperature of the material is 10 ° C. and the pressure is 0.30 MPa, a vertical line of 0.30 MPa and a horizontal line of 10 ° C. A value of 4.729 is obtained from the intersection of the lines. Find the value closest to 4.729 on the horizontal line at the standard temperature of 20 ° C., and set it as the value located between 4.691 and 4.778. The internal pressure obtained from the vertical line of the value located in the middle is 0.445 MPa.

Pages 952-955 "Latest Soft Drinks" Supervised by Japan Soft Drink Industry Association, edited by Japan Carbonated Beverage Inspection Association Latest Soft Drinks Editorial Committee Chairman Hiroshi Miura Published September 30, 2003

However, the conventional calculation of the gas volume at the standard temperature (20 ° C.) has a problem that it takes time and effort because it is obtained by tracing the table from the temperature and pressure of the carbonated beverage in the container as a material as described above.

Therefore, an object of the present invention is to provide a method and a calculation device for calculating the gas volume of a soft drink in a container, which can easily obtain the gas volume of the soft drink in a container at a standard temperature (20 ° C.).

The invention according to claim 1 includes a step of measuring the gas pressure and temperature of a carbonated beverage in a container, and a step of calculating the gas volume at 20 ° C. from the measured gas pressure and gas temperature using a calculation formula. , The calculation formula is the following formula 1 based on the gas volume table showing the relationship between each gas pressure, gas temperature and gas volume in a matrix, and is a method for calculating the gas volume of a carbonated beverage in a container .

The gas volume (vol. [20 ° C.]) below means the gas volume (vol) at 20 ° C.

The invention according to claim 2 has a calculation unit that stores the formula 1 according to claim 1 , an input unit that inputs the measured pressure p and temperature t, and a display unit that displays the result of calculation by the calculation unit. The container is characterized in that the calculation unit calculates Equation 1 based on the input values of the pressure p and the temperature t input in the input unit, and displays the gas volume Gv obtained by the calculation on the display unit. It is a gas volume calculation device for carbonated beverages.

The invention according to claim 3 is a gas volume calculator for a soft drink in a container according to claim 2 , an arrangement portion for arranging the carbonated beverage in a container, and a gas pressure of the carbonated beverage in a container arranged in the arrangement portion. A gas pressure measuring unit for measuring the pressure and a temperature measuring unit for measuring the beverage temperature of the soft drink in a container arranged in the arrangement unit are provided, and the input unit includes a pressure value signal measured by the gas pressure measuring unit. , A gas volume calculation device for a soft drink in a container, characterized in that a temperature value signal measured by a temperature measuring unit is input.

The invention according to claim 4 is the invention according to claim 2 or 3 , wherein the range setting unit for inputting the gas volume Gvr of an arbitrary range, the gas volume Gv calculated by the calculation unit, and the range setting unit It is provided with a comparison unit that compares the input gas volume Gvr and an alarm unit that issues an alarm when the gas volume Gv calculated by the calculation unit is outside the range of the gas volume Gvr input by the range setting unit. It is characterized by.

The invention according to claim 5 is characterized in that, in the invention according to claim 1 , the carbonated drink in a container is a carbonated drink stored in any of a bottle, a can, and a resin bottle.

The invention according to claim 6 is the invention according to any one of claims 2 to 4 , wherein the carbonated drink in a container is a carbonated drink stored in any of a bottle, a can, and a resin bottle. It is characterized by being.

According to the invention of claim 1, since it is calculated based on the calculation formula from the measured beverage temperature and pressure of the carbonated beverage in a container, the gas volume at the standard temperature (20 ° C.) can be easily obtained. ..

As a result of the verification, it was possible to obtain the gas volume at the standard temperature (20 ° C.) with high accuracy.

According to the invention of claim 2 , it is possible to provide a gas volume calculation device for a carbonated beverage in a container, which has the same effect as that of the invention of claim 1.

According to the invention of claim 3 , the same operation and effect as that of the invention of claim 2 is obtained, and the measured values of the gas pressure and the beverage temperature of the carbonated beverage in the container are directly input to the input unit as input signals. Therefore, the gas volume at the standard temperature (20 ° C.) can be obtained by automatic measurement.

According to the invention of claim 4 , the same action and effect as that of the invention of claim 2 or 3 can be obtained, and when the measured gas volume is out of the predetermined range, an alarm is issued. Can be aroused.

According to the invention of claim 5 , the same action and effect as that of the invention of claim 1 can be obtained.

According to the invention of claim 6 , the same action and effect as that of the invention of any one of claims 2 to 4 can be obtained.

It is a block diagram of the gas volume calculation apparatus of the carbonated drink in a container which concerns on embodiment of this invention. It is a front view of the gas volume calculation apparatus of the carbonated drink in a container in embodiment of this invention. It is a graph which shows the matching rate by temperature with respect to the gas volume obtained from Non-Patent Document 1 about the gas volume obtained from the calculation formula (Equation 1) which concerns on embodiment of this invention and the formula of a comparative example. It is a graph which shows the matching rate by pressure with respect to the gas volume obtained from Non-Patent Document 1 about the gas volume obtained from the calculation formula (Equation 1) which concerns on embodiment of this invention and the formula of a comparative example. It is a carbon dioxide gas absorption coefficient table (gas volume table) of Non-Patent Document 1, and is a figure which shows the relationship between temperature and pressure (0 to 0.25 MPa), and gas volume. It is a carbon dioxide gas absorption coefficient table (gas volume table) of Non-Patent Document 1, and is a figure which shows the relationship between temperature and pressure (0.26 to 0.50 MPa), and gas volume.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the gas volume calculation device 1 (hereinafter, simply referred to as “gas volume calculation device”) for the containerized soft drink according to the present embodiment includes a temperature input unit 3, a pressure input unit 5, and a calculation unit. 7, a comparison unit 9, a range setting unit 11, a display unit 13, and an alarm unit 14 are provided.
The container-containing carbonated drink is carbonated water, cider, a fruit juice-containing carbonated drink, or the like, and the container may be a bottle, a can, or a resin bottle. The capacity of the container is 350 mL (milliliter), 500 mL, 1 L (liter) and the like.

The temperature input unit 3 inputs the measurement temperature t of the soft drink in a container as a material, and as shown in FIG. 2, after pressing the temperature input key 15, the value measured by the numeric keypad 17 is input. ..
Similar to the temperature input unit 3, the pressure input unit 5 inputs the measurement pressure p of the carbonated drink in a container as a reference material. After pressing the pressure input key 19 shown in FIG. 2, the pressure input unit 5 measures with the numeric keypad 17. Enter the value you have entered.
The calculation unit 7 calculates the gas volume Gv (p, t) from the calculated formula of the input temperature t and the pressure p. The following (Equation 1) is stored in the calculation unit 7.

In the present embodiment, the calculation formula of the gas volume is the pressure, temperature and gas volume of the carbon dioxide gas absorption coefficient table (hereinafter, simply referred to as “gas volume table”) published in the non-patent documents shown in FIGS. 5 and 6. It is a calculation formula obtained from the relationship of, and by multiple regression analysis with the gas volume composed of the combination of pressure, temperature and their multipliers in the gas volume table as the explanatory variable and the gas pressure at 20 ° C as the objective variable. The obtained formula was used as a calculation formula. The real number is 4 digits.
Specifically, the calculation formula is as follows (Formula 1).

The comparison unit 9 compares whether or not the gas volume Gv calculated by the calculation unit 7 is within the value of the range set by the range setting unit 11.
In the range setting unit 11, the gas volume Gv within an appropriate range is set. It is a range arbitrarily determined as a carbon dioxide beverage product, and an upper limit value and a lower limit value are set.
As shown in FIG. 2, for example, the value set by the range setting unit 11 is input by pressing the upper limit key 21 and then using the numeric keypad 17, pressing the lower limit key 23 and then inputting by using the numeric keypad 17, and the input is completed. Press the Enter key 25. Each input value is displayed on the display unit 13.
Further, on the display unit 13, when the temperature t and the pressure p are input, the value of the gas volume Gv calculated by the calculation unit 7 is displayed.
Further, the comparison unit 9 compares whether or not the value of the gas volume Gv calculated by (Equation 1) is within the range set by the range setting unit 11, and if it is out of the set range, an alarm is given. The gas volume Gv value displayed on the display unit 13 by the unit 25 is colored with red or the like, or an alarm is issued by a buzzer.

Next, the measurement of the pressure and temperature of the carbonated beverage in a container as a sample will be described.
Before the measurement, shake the carbonated soft drink in the container as a sample, and measure the pressure in the container and the beverage temperature in the container when the carbon dioxide gas pressure in the sample liquid becomes gas-liquid equilibrium. The measurement is a manual measurement with a gas internal pressure gauge and a thermometer, but may be measured with an automatic measuring device. As the automatic measuring device, for example, GVA-700 (trade name) manufactured by Kyoto Electronics Industry Co., Ltd. can be used.

Since the value of the gas volume Gv calculated by the formula (Equation 1) of the present invention is compared with the value of the gas volume Gv calculated by using the formula of the following comparative example, the result will be described.
Each formula of the comparative example is a formula for obtaining the gas volume Gv at 20 ° C. from the pressure p and the temperature t of the carbonated beverage in a container as a sample, and is a conventionally used formula.

For each of Comparative Examples 1 to 3 and (Equation 1) of the present invention, the value of gas volume Gv obtained by inputting each pressure p and each temperature t shown in the gas volume table, and 20 obtained from the gas volume table. The value of gas volume Gv at ℃ was compared. The results are shown in Table 1 below.

Table 1 shows the maximum and minimum values of the error between the formula of each comparative example and the value of gas volume Gv at 20 ° C. obtained from the gas volume tables shown in FIGS. 5 and 6 for (formula 1) of the present invention. In addition to showing, in each equation, the error when t is 20 ° C. and p is 0 and 25 MPa is shown.
In the formulas of the present invention and each comparative example, there was almost no error when t was 20 ° C. and p was 0, 25 MPa. However, in the range other than the temperature t of 20 ° C. and the pressure p of 0 and 25 MPa, the error range of the present invention is -0.02 to 0. In contrast to 01, in Comparative Example 1 equation, the minimum error is -1.29 to 0.01, which is large, and in Comparative Example 2, the maximum error is -0.01 to 0.06, which is large, and Comparative Example. In Equation 3, -0.02 to 0.04, which was the largest error larger than that of the present invention.
From this Table 1, it is clear that (Equation 1) of the present invention has a smaller error with respect to the gas volume table than Comparative Examples 1 to 3.

Next, with respect to (Equation 1) and Comparative Examples 1 to 3 of the present invention, for each temperature t and pressure p, the matching rate for each temperature and pressure with respect to the gas volume Gv at 20 ° C. obtained from the gas volume table. The results will be described with reference to FIGS. 3 and 4.
FIG. 3 shows the matching rate for each temperature, and the matching rate at a pressure of 0 to 0.50 MPa at each temperature t was calculated and the average value was taken. The horizontal axis is the temperature ° C., and the vertical axis is the matching rate%. FIG. 4 shows the matching rate for each pressure, and the matching rate at a temperature of 0 to 25 ° C. at each pressure p was calculated and averaged. In Comparative Example 1, the matching rate was as low as 83% at the maximum, which was outside the range of this graph, and is not shown in FIG.

As is clear from the graph of FIG. 3, in the temperature range of 0 ° C. to 25 ° C., the matching rate is close to 100% in each of Comparative Examples 1 to 3 and (Formula 1) of the present invention at around 20 ° C. In Comparative Example 2, at a temperature lower than 20 ° C. and a temperature higher than 20 ° C., the values are higher than the values obtained in the gas volume table, and the matching rate is higher than 100%. In Comparative Example 1, the value was lower than the value obtained in the gas volume table at 15 ° C. or lower, and the matching rate was much lower than 100%.
Further, in the formula (Equation 1) and the formula 3 of Comparative Example 3 of the present invention, the matching rate was close to 100% as a whole.
However, as is clear from FIG. 4, the matching rate of (Equation 1) of the present invention was closer to 100% than that of Comparative Example 3 by pressure. Further, in Comparative Example 2, the matching rate was always out of 100%.
As is clear from the graphs of FIGS. 3 and 4, it is clear that (Equation 1) of the present invention has the highest matching rate in comparison with the equations 1 to 3 of Comparative Examples.
That is, according to (Equation 1) of the present invention, it is clear that each temperature and pressure is an equation that can be most approximated to the value in the gas volume table.

The present invention is not limited to the above-described embodiment, and can be variously modified without departing from the gist thereof.
For example, the gas volume calculation device 1 may be incorporated in a device that automatically measures the temperature and pressure of a document.

1 Gas volume calculation device 3 Temperature input unit 5 Pressure input unit 7 Calculation unit 9 Comparison unit 11 Range setting unit 13 Display unit

Claims (6)

The process of measuring the gas pressure and temperature of a carbonated drink in a container,
It is provided with a step of calculating the gas volume at 20 ° C. using a calculation formula from the measured gas pressure and gas temperature.
The calculation formula is the following formula 1 based on the gas volume table showing the relationship between each gas pressure, gas temperature and gas volume in a matrix, and is a method for calculating the gas volume of a containerized soft drink .

A calculation unit that stores the equation 1 according to claim 1 and
An input unit for inputting the measured pressure p and temperature t,
It is equipped with a display unit that displays the result of calculation by the calculation unit.
The calculation unit calculates Equation 1 based on the input values of the pressure p and the temperature t input in the input unit, and displays the gas volume Gv obtained by the calculation on the display unit. Gas volume calculation device. The gas volume calculator for the carbonated beverage in a container according to claim 2,
Arrangement part for arranging carbonated drinks in containers and
A gas pressure measuring unit that measures the gas pressure of a carbonated drink in a container arranged in the arrangement unit,
It is provided with a temperature measuring unit for measuring the beverage temperature of the carbonated beverage in a container arranged in the arrangement unit.
A gas volume calculation device for a soft drink in a container, characterized in that a pressure value signal measured by a gas pressure measuring unit and a temperature value signal measured by a temperature measuring unit are input to the input unit. Range setting part to input gas volume Gvr of arbitrary range,
A comparison unit that compares the gas volume Gv calculated by the calculation unit with the gas volume Gvr input by the range setting unit,
The container according to claim 2 or 3 , further comprising an alarm unit that issues an alarm when the gas volume Gv calculated by the calculation unit is out of the range of the gas volume Gvr input by the range setting unit. Gas volume calculation device for soft drinks. The method for calculating the gas volume of a soft drink in a container according to claim 1, wherein the soft drink in a container is a soft drink stored in any of a bottle, a can, and a resin bottle. The gas of the soft drink in a container according to any one of claims 2 to 4 , wherein the soft drink in a container is a soft drink stored in a container of a bottle, a can, or a resin bottle. Volume calculator.

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