JPH0487986A - Charging of carbonated drink - Google Patents

Abstract

PURPOSE:To continuously and speedily discharge a carbonate drink in containers without foaming when discharged in the air, by charging a carbonated drink into a container through a charging nozzle of a porous chamber. CONSTITUTION:A charging nozzle 4 to fill a container 5 with a carbonated drink and syrup is composed of a triple tube. The outer tube 4a is made of a sintered porous material and the carbonated drink LC is fed in the clearance between the outer tube and the first inner tube 4'. The upper end of the outer tube and the first inner tube and front end are closed by an end plate. The syrup SY is fed in the clearance path formed by the first and second inner tubes. After both drinks are charged by a specified volume into the container, a detector element 6 equipped with a float 6a at the lower end of the guide bar 6b inserted in the inside of the second inner tube 4'' constituting the nozzle 4 is inserted in the container. This detecting element transmits the charged water level in the container to the transmitter to control automatic valves V1, V2.

Description

[Detailed Description of the Invention] [Industrial Field] The present invention allows carbonated beverage liquid and non-carbonated beverage liquid in a storage tank to be stored in an open environment without being affected by the shape and size of containers such as bottles and cans. , relates to a carbonated beverage filling method for efficiently filling each of the beverage liquids.

[Prior Art] Conventionally, as a filling method for carbonated drinks, carbonated water and, for example,
Carbonated drinks mixed with beverage syrup are stored in a storage tank.
The container is filled under a pressure of about 2 to 5 Ky/ctiG so that the air inside the container and the carbon dioxide in the carbonated beverage do not leak into the outside air during filling.

In addition, non-carbonated beverages that do not contain carbonated water are stored in a liquid storage tank and filled under a pressure of about 1.0 mm, OK 9/ctiG, so that the air inside the container does not leak into the outside air during filling. If the former filling method is followed, there is a drawback that foaming occurs, which increases the loss of carbonic acid residue, and also causes a lack of volume due to insufficient filling. Therefore, a filling method as shown in FIG. 3 was proposed. In Fig. 3, the so-called closed type carbonated beverage filling method is shown, and A is a liquid storage tank for storing carbonated beverage liquid.This tank consists of a gas phase pressurizing chamber B and a liquid phase section C. A filling nozzle C2 is connected to a pressure gas supply pipe B2 equipped with a counter valve B1 in a pressurizing chamber, and a filling nozzle C2 is equipped with a filling valve C1 in the liquid phase part.
are connected, the gas supply pipe and the tip of the filling nozzle are inserted into the container, the container mouth is sealed with the sealing member S, and the gas is supplied into the container through the supply pipe, and the inside of the liquid storage tank A and In this method, the pressure inside the container and the container are maintained at the same level, and then the filling valve of the liquid phase section is opened to supply the carbonated beverage liquid to the container through the filling nozzle.

As an open-type carbonated beverage filling method, Japanese Patent Application Laid-Open No. 6396096
It is shown in the publication No. As shown in FIG. 4, this method involves providing an auxiliary tank "in the gas phase pressurizing chamber and the liquid phase section of the carbonated beverage liquid storage tank through automatic opening/closing valves, and connecting the same tank to the gas phase section B'. and a liquid phase part C', and the carbonated beverage is filled into the container at atmospheric pressure through a filling valve provided in the liquid phase part and from a filling nozzle at atmospheric pressure.

[Problem to be Solved by the Invention 1] In the conventional carbonated beverage filling method, the sealed filling method performs filling under pressure to prevent foaming from the carbonated beverage. The filling valve used must have a pressure-resistant structure, and the container must be airtight. If the table on which the container is placed does not have an upward force to resist the pressure of the pressurized gas, a gap will form in the seal and the pressure gas will leak outside, making it impossible to maintain the same pressure in the container and the storage tank. However, it has the disadvantage of causing foaming. Therefore, the filling operation was also troublesome. In addition, in the open filling method, if pressurized carbonated beverage liquid is released to the atmosphere, it will form during filling, making it impossible to fill the container efficiently, and the liquid will be transferred from the storage tank to the auxiliary tank to reduce the pressure. There were also undesirable disadvantages such as the operation of drawing and filling was complicated and time consuming. However, filling at atmospheric pressure has the effect of contributing to preventing damage and deformation of the container.

[Means for Solving the Problem] The present invention is based on the findings from tests that when filling a carbonated beverage in an open type container, if the carbonated beverage liquid is filled into the container using a porous nozzle, the container is filled without forming. This invention was achieved by Shiko.

The invention according to claim 1 resides in filling the container with the carbonated beverage liquid through a porous body when filling the container with the carbonated beverage liquid and the non-carbonated beverage liquid under an open atmosphere condition. According to the invention as set forth in claim 2, in claim 1, the filling level of the carbonated beverage liquid and the non-carbonated beverage liquid is detected in the container under the open atmosphere condition by the sensing element, and the respective levels are detected by this detection signal. The automatic opening/closing valve installed in the drinking liquid supply pipe was controlled.

[Function] By employing the above-mentioned means, the present invention can fill a container with carbonated beverage liquid through a porous nozzle and open to the atmosphere without causing any forming phenomenon. The reason for this is not clear, but in order to reduce the pressure to atmospheric pressure more uniformly and quickly than with a porous nozzle,
The phenomenon is thought to be as if it were filled under high pressure.

Sintered metals, ceramics, etc. are used as the porous material, and experiments have revealed that there is a relationship between the pore diameter of the porous material and the occurrence of forming.

The results are shown in the numerical table. The tube thickness of the porous body used in the experiment was 2 mm, and the tube length was 20 mm.

Table 1 Pore diameter of porous material Presence or absence of forming (microns) 90 Slightly Yes 60 No 15 No As seen in the results in the table above, the pore diameter is preferably about 60 microns. Furthermore, in addition to the porous material, the purpose of suppressing foaming can also be achieved by constructing the filling nozzle by stacking two or more rod-like materials having pore diameters of about 100 microns or less.

A float type, sensor type, or the like is used as a detection element for detecting the level of the filled liquid in the container. A control method is adopted in which each automatic opening/closing valve is operated by a signal from this sensing element.

In this way, by filling the container with carbonated beverage liquid and non-carbonated beverage liquid without forming, filling is facilitated, and filling loss and loss of carbon dioxide gas are prevented.

[Example] Hereinafter, an explanation will be given based on an example of an apparatus for implementing the method of the present invention.

In FIG. 1, 1 is a storage tank for carbonated beverage liquid, 2 is a storage tank for syrup liquid as non-carbonated beverage liquid,
Supply pipe 3 equipped with automatic on-off valves V1 and V2 for each storage tank
．． 3' are connected. Reference numeral 4 denotes a filling nozzle for filling the container 5 with carbonated beverage liquid and syrup liquid, and this nozzle is composed of a triple tube, and the outer tube 4a is formed of a sintered porous body. The carbonated beverage liquid LC is supplied into the gap between the outer pipe and the first inner pipe 4. The upper and distal ends of the outer tube and the first inner tube are closed with end plates. Syrup liquid SY is supplied to the gap flow path formed by the first and second inner tubes.

When the container is filled with a predetermined amount of both beverage liquids, a sensing element 6 having a float 6a is installed at the lower end of a guide rod 6b that is inserted into the second inner tube 4'' constituting the nozzle 4. .

This sensing element transmits the level of the filled liquid in the container to the transmitter 7 and automatically controls the automatic on-off valves V1 and v2. Although the illustration shows an example of float detection as the detection element, a control method using a sensor system for measuring the level of the filled liquid in the container may also be adopted. Further, as shown in the drawing, the liquid level detection element may be installed inside the nozzle 4, or it may be placed outside the nozzle 4. The mounting member for the nozzle 4 is omitted in the figure.

FIG. 2 is a cross-sectional view taken along line lY' in FIG. 1, and the reference numerals correspond to those in FIG. 1.

Using the apparatus shown in Figure 1, 1.15% of carbonated beverage liquid and 0.35% of syrup at 5°C are placed in a container at an internal pressure of 3.2'l.
/ciG, it was possible to easily fill the tube without causing any forming, despite the porous tube having a thickness of 2 glands.

[Effects of the Invention] According to the method of the present invention, carbonated beverages can be continuously and quickly filled into containers under popular conditions without forming.

Furthermore, since there is no foaming, there is of course no loss of capacity or loss of carbon dioxide gas, and the carbonated beverage can be filled into the container under sanitary conditions.

[Brief explanation of drawings]

FIG. 1 is a schematic diagram of an apparatus for carrying out the method of the present invention, FIG. 2 is a cross-sectional view taken along the Y-Y line in FIG. 1, and FIG. 3 is an explanatory diagram showing a conventional closed type carbonated beverage filling method. FIG. 4 is an explanatory diagram of a conventional open-type carbonated beverage filling method. DESCRIPTION OF SYMBOLS 1... Carbonated beverage liquid storage tank, 2... Non-acidic beverage liquid storage tank, 3, 3-... Supply pipe, 5... Container, 6...
...Detection element, 7...Sending section, Vl, V2...Automatic opening/closing valve, A...Carbonated beverage liquid storage tank, B...Gas phase pressurization chamber, C...Liquid phase section , D... Container, F... Auxiliary tank, B-... Gas phase part, C-... Liquid phase part. l Carbonated beverage storage tank 2 Syrup liquid storage tank Figure A Carbonated beverage storage tank

Claims (1)

[Claims] 1. When filling a carbonated beverage liquid and a non-carbonated beverage liquid into a container open to the atmosphere, the carbonated beverage liquid is filled into the container through a porous filling nozzle. A filling method for carbonated drinks. 2. When filling a carbonated beverage liquid and a non-carbonated beverage liquid into a container under conditions open to the atmosphere, the level of the filled liquid in the container is detected by a sensing element, and a detection element is installed in the supply pipe for both liquids based on the detection signal. 2. The carbonated beverage filling method according to claim 1, further comprising controlling an automatic opening/closing valve.