JP2001348088A - Liquid transport container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container that prevents oxidation of a liquid and discharges the liquid by a simple operation. SOLUTION: The liquid transport container comprises (a) a pressure-resistant tank 2 including an inactive gas inlet 8 which is provided in its upper portion, a liquid outlet 9 which is provided in its lower portion, and a liquid inlet 7, (b) a frame 4 formed of a plurality of inactive gas tanks 3 and frame members 17 and supporting the pressure-resistant tank 2, the inactive gas tanks 3 including an inactive gas inlet 18 and an inactive gas outlet 19 which are formed in at least one of the tanks 3 and being cylindrical, connected to each other by tank connector pipes 16, and erected round the pressure-resistant tank 2, and the frame members 17 connecting the inactive gas tanks 3 together, and (c) a discharging device 5 which controls discharge of a liquid conveyed into the pressure-resistant tank 2. In the liquid transport container, the pressure- resistant tank 2 and the inactive gas tanks 3 are allowed to communicate with each other, and the liquid conveyed into the pressure-resistant bank 2 is discharged by pressure of the inactive gas tanks 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a container for transporting a liquid while preventing oxidation of the liquid.

[0002]

2. Description of the Related Art As a technique for preventing oxidation of a liquid filled in a conventional portable container, a "container" (JP-A-11-59786) can be mentioned. The technical contents of this application are a pallet that can be transported by a forklift, an inner tank provided with an opening / closing lid on the upper side for storing liquid or powder, and an inert gas or nitrogen gas or the like in the inner tank. The container is composed of a deterioration preventing agent supply device that can prevent deterioration of the stored items by supplying water or steam.

[0003]

However, the above-mentioned prior art is provided with a deteriorating agent supply device filled with an inert gas such as nitrogen gas to prevent the liquid filled in the tank from being oxidized. No mention is made of the discharge of the filled liquid, only by gravity. With this measure, a separate pump must be provided or the container itself must be located at an elevated location in order to discharge the liquid filled in the tank at the transported site.
The former has problems such as keeping the pump sterile, and the latter has problems such as the efficiency of discharge. In addition, in the above-described conventional technology, there is a possibility that air may enter the container when the liquid is discharged, and particularly when the liquid is stored in the container for a long time due to intermittent discharge, the filled liquid is deteriorated by oxidation. It was expected that there would be problems to be solved.

The inventors of the present invention have conducted intensive studies and found that if the tank is made pressure-resistant and the filled liquid is discharged by a pressurized inert gas, the above-mentioned problems can be solved at once, and the inertness can be further reduced. The inventor of the present invention has found that the apparatus itself becomes compact if the frame is formed by a gas tank, and the present invention has been completed.

[0005]

That is, the present invention provides:
(a) A pressure-resistant tank provided with an inert gas inlet at the upper part, a liquid outlet and a liquid inlet at the lower part, and (b) at least one of which has an inert gas receiving port and an inert gas outlet, and has a cylindrical shape. A plurality of inert gas tanks connected to each other by a tank connecting pipe and erected around the pressure tank, and a frame member supporting the pressure tank, the frame member connecting the inert gas tanks And (c) a discharge device for controlling the discharge of the liquid introduced into the pressure-resistant tank, which is configured to communicate with the pressure-resistant tank and the inert gas tank to discharge the liquid introduced into the pressure-resistant tank by the pressure of the inert gas tank. A liquid transport container characterized in that:

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, reference numeral 1 denotes a liquid transport container according to the present invention, which mainly includes a pressure-resistant tank 2 filled with a liquid to be conveyed, an inert gas tank 3 filled with an inert gas, and the like. The formed frame 4 and a discharge device 5 for controlling the discharge of the liquid filled in the pressure-resistant tank 2
It is composed of The pressure-resistant tank 2 has a pressure-resistant structure, and is provided with a liquid inlet 7 and an inert gas inlet 8 at an upper portion, and a liquid outlet 9 at a lower portion. The liquid discharge port 9 is provided with a liquid discharge pipe 9a, and the pipe 9a is provided with a stop valve 10 for controlling the discharge of the filled liquid and a flow meter 11 for measuring the discharge amount. The liquid inlet 7 is covered with a lid 12, and the lid 12 is provided with an air outlet 13 for replacing air and an inert gas and an air exhaust valve 14 (see FIG. 2).

[0007] The frame body 4 is, for example, 4
The inert gas tank 3 is a vertically standing, cylindrical inert gas tank 3 and a frame member 15 connecting the tanks 3. Also,
Reference numeral 16 denotes a tank connecting pipe, which has a function of connecting the inert gas tanks 3, whereby the inert gas tanks 3 are connected to each other and function as if they were one tank.
The feature of the present invention lies in that the inert gas tank 3 which is originally rugged in structure is used for the frame, which makes the whole structure compact. The lowermost frame member 17 of the frame members 15 functions like a pallet and is used when transported by a forklift.

At least one of the inert gas tanks 3 is provided with an inert gas receiving port 18 and an inert gas outlet 19, and the inert gas outlet 19 and the inert gas inlet 8 of the pressure-resistant tank 2 are connected to each other. It is connected by an inert gas supply pipe 20, and the supply pipe 20 is provided with a control valve 21, which constitutes the discharge device 5 with the stop valve 10, and 22 is a pressure gauge, In the inert gas supply pipe 20, the control valve 21
Provided further upstream, the pressure of the inert gas tank 3 is displayed. Also, if the pressure gauge 22 is read and the inert gas tank 3 is filled with the inert gas at a predetermined pressure, the filling amount of the liquid in the pressure tank 2 can be determined from the pressure tank 2 and the capacity of the tank 3. You can know. 23
Is a safety valve provided on the inert gas supply pipe 20, and 24 is a sterilization filter, both of which may be provided as needed. Reference numeral 27 denotes an inert gas receiving valve provided at the inert gas receiving port 18.

The present invention is configured as described above.
First, the stop valve 10 is closed and the liquid such as soy sauce conveyed from the liquid inlet 7 is supplied into the pressure-resistant tank 2. Next, the pressure regulating valve 21 is closed, the inert gas receiving valve 27 is opened, and an inert gas such as nitrogen is supplied to the inert gas receiving port 1 of the inert gas tank 3.
The pressure is supplied from 8 to a specified pressure, and the inert gas receiving valve 27 is closed. Then, the air discharge valve 14 and the pressure regulating valve 21 are opened, the air in the pressure-resistant container 2 is discharged and replaced with the inert gas, and then the air discharge valve 14 is closed. This allows the pressure tank 2
The oxidation of the liquid filled therein is prevented. At this time, the pressure of the inert gas tank 3 is recorded by the pressure gauge 22 as necessary. In this state, the pressure regulating valve 21 is opened, the air discharge valve 14 is closed, the inert gas receiving valve 27 is closed, and the stop valve 1
The liquid transport container 1 is transported to the destination by a truck or the like with 0 closed. To discharge the charged liquid at the transported site, the stop valve 10 is opened and the liquid is discharged using the pressure of the inert gas tank 3. Emission amount is flow meter 11
The stop valve 10 is closed when the specified amount is discharged.
The liquid discharge amount may be read from the pressure gauge 22 as described above, or a flow meter on the receiving side may be used.

Next, FIG. 3 shows an example in which the liquid inlet 7 and the liquid outlet 9 are shared. In this embodiment, a liquid introduction pipe 25 is connected to the liquid discharge pipe 9a, and a liquid introduction valve 26 is interposed in the pipe 25. In the liquid introduction according to the present embodiment, first, the stop valve 10 is closed, the liquid introduction valve 26 and the air discharge valve 14 are opened, and the liquid is introduced from the liquid introduction pipe 25 into the pressure-resistant tank 2. Next, after closing the liquid introduction valve 26, the control valve 21 is opened and the inert gas is introduced into the pressure-resistant tank 2. Replacement of air in the pressure-resistant tank 2 with an inert gas,
The discharge of the liquid is performed in the same manner as described above. As described above, the installation position of the liquid inlet 7 may be anywhere, and may be appropriately set according to the use purpose, use, and the like of the liquid transport container 1. Further, for example, as shown in FIG.
It may be installed on the side of.

[0011]

According to the present invention, the liquid supplied to the pressure-resistant tank is prevented from being oxidized, and the liquid filled by the pressure of the inert gas tank is discharged at the transported site. Operation is easy because it can be done.

[Brief description of the drawings]

FIG. 1 is a perspective view of a liquid transport container according to the present invention.

FIG. 2 is a front sectional view of a pressure-resistant tank.

FIG. 3 shows another embodiment of the installation position of the liquid inlet.

FIG. 4 shows another embodiment of a liquid inlet installation position.

[Explanation of symbols]

 Reference Signs List 1 liquid transport container 2 pressure-resistant tank 3 inert gas tank 4 frame 5 discharge device 7 liquid inlet 8 inert gas inlet 9 liquid outlet 10 stop valve 11 flow meter 16 tank connecting pipe 18 inert gas receiving port 19 inert Gas outlet 20 Inert gas supply pipe 21 Control valve 22 Pressure gauge

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Kazuhiro Tobita 250 Noda, Noda City, Chiba Prefecture Kikkoman Co., Ltd. (72) Inventor Naru Sasaki 250 Noda Noda City, Chiba Prefecture Kikkoman Co., Ltd. F-term (reference) 3E070 AA07 AA25 AB01 BK10 GB01 GB04 GB09 GB15 QA01 RA02 RA03 SA02 SA03 SA05 WJ07

Claims (1)

[Claims] 1. A pressure-resistant tank having an inert gas inlet at the upper part, a liquid outlet at the lower part, and a liquid inlet, and (b) at least one of an inert gas inlet and an inert gas outlet. Is provided with a plurality of inert gas tanks which are formed in a cylindrical shape, are mutually connected by a tank connecting pipe, and are provided upright around the pressure-resistant tank, and a frame member which connects the inert gas tanks, and supports the pressure-resistant tank. (C) a discharge device for controlling the discharge of the liquid introduced into the pressure-resistant tank, which communicates with the pressure-resistant tank and the inert gas tank so that the liquid introduced into the pressure-resistant tank is controlled by the pressure of the inert gas tank. A liquid transport container configured to discharge.