JPH0653473U - Liquid storage device - Google Patents

Abstract

(57) [Summary] [Purpose] Prevents air from entering the storage container even when liquid is taken in and out of the storage container to prevent deterioration of the liquid in the storage container and to supply a large amount of liquid during use. To A tank 10 containing a liquid and a storage container 12 for storing the liquid are connected by an introduction pipe 14. An extraction pipe provided with a discharge valve 22 is connected in the middle of the introduction pipe 14, and a pump 13 and an opening / closing valve 18 are provided in series on the side closer to the tank 10 than the connection position of the introduction pipe 14 with the discharge valve 22. . The storage container 12 has a bellows 26 so that its internal volume can be changed.
And a weight 38 is placed on top of the storage container 12.
The weight 38 pushes the storage container 12 when the liquid in the storage container 12 is taken out and reduces the internal volume thereof.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid storage device which prevents various liquids from being exposed to the atmosphere and deteriorating in quality.

[0002]

[Prior art]

 2. Description of the Related Art Recently, ion water generators, which are connected to a discharge valve of water and generate tap water into acidic ion water and alkaline ion water and take it out, have become widespread. Since acidic ionized water has a bactericidal action and a skin smoothing action, it is mainly used for skin healing and facial treatment, and alkaline ionized water is mainly used for beverages.

In the ionized water generator, for example, acidic ionized water has a + potential of +950 mmV or more, which functions as a sterilizer, and alkaline ionized water has a −potential of −250 mmV or more. If these acidic ionized water and alkaline ionized water are left in the atmosphere, the ions will discharge over time, and the effect of ionized water will disappear in about one day. There are many liquids for eating and drinking and various other liquids that deteriorate their quality by being exposed to oxygen in the atmosphere.

[Problems to be solved by the device]

For example, a large amount of acidic ionized water or alkaline ionized water may be used at one time. Since the amount of ionized water produced by the ionized water generator per unit time is limited, a large amount of acidic ionized water or alkaline ionized water must be produced in advance when using a large amount at a time. However, since the effective period of ionized water is short, there is a drawback that a large amount of ionized water cannot be used when necessary. In order to solve this problem, an ionized water generator has been developed in which the positive potential of acidic ionized water and the negative potential of alkaline ionized water are increased, but this is a high potential ionized water generator. However, its useful life was at most 2-3 days in the atmosphere, and the price was high.

The present invention has been made in view of the above circumstances and prevents deterioration of the liquid in the storage container by preventing air from entering the storage container when the liquid is taken in and out of the storage container. An object of the present invention is to provide a liquid storage device capable of supplying a large amount of liquid at the time of use.

[0006]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention connects a storage container in which a volume of a liquid is changed while keeping a sealed state, a tank for supplying the liquid, the storage container and the tank. The introduction pipe, an opening / closing valve provided in the middle of the introduction pipe, a take-out pipe communicating with the introduction pipe between the storage container and the open / close valve, a discharge valve provided in the middle of the take-out pipe, It has a pressurizing means to reduce the volume of the liquid in the storage container.When the liquid is put into the storage container from the tank, the on-off valve is opened and the discharge valve is closed to allow air to enter the storage container. When introducing only the liquid without mixing and removing the liquid from the storage container, open the discharge valve and close the opening / closing valve, and use the volume varying means to inside the storage container. It is obtained by so as not to put air into the storage container by reducing the product.

[0007]

[Action]

 When the liquid is taken out from the storage container, the storage container is pushed by the pressurizing means to reduce the internal volume of the storage container by the volume of the liquid taken out. This prevents air from entering the storage container and prevents deterioration of the liquid introduced into the storage container.

[0008]

【Example】

 Next, the present invention will be described with reference to the drawings. FIG. 1 is a block diagram of a liquid storage device according to the present invention. A lower part of the tank 10 containing the liquid and a lower part of the storage container 12 for storing the liquid are connected to each other via an introduction pipe 14. The tank 10 may be a liquid manufacturing apparatus that directly manufactures or produces a liquid. In the middle of the introduction pipe 14, a take-out pipe 16 that communicates with the atmosphere is connected. An opening / closing valve 18 and a pump 20 are provided in series in the tank 10 from the connection position of the introduction pipe 14 with the extraction pipe 16, and a discharge valve 22 is provided in the middle of the extraction pipe 16. The liquid is introduced from the tank 10 to the storage container 12 by the pump 20, but the pump 20 is eliminated and the tank 10 is arranged above the storage container 12 to introduce the liquid from the tank 10 to the storage container 12 due to the head difference. May be.

The storage container 12 is kept in a hermetically sealed state except for a connecting portion with the introduction pipe 14. The storage container 12 is composed of a main body 24 located on the lower side and a bellows 26 made of a flexible material located on the upper side of the main body 24 so that the deformation of the bellows 26 changes the internal volume of the storage container 12. It is set. The bottom surface 28 of the main body 24 has a taper shape, and the introduction pipe 14 is connected to the lowest position of the bottom surface 28. The take-out pipe 16 and the introducing pipe 14 between the storage container 12 and the take-out pipe 16 are arranged at a lower position than the storage container 12. As a result, even if a foreign matter enters the storage container 12, it can be immediately discharged.

A plate 30 is fixed to the upper surface of the bellows 26, and a pair of arms 34 having holes 32 are integrally attached to the side surfaces of the plate 30 (FIG. 2). Two vertical guides 36 are fixed to a base (not shown) near the storage container 12, and the holes 32 of the arms 34 are fitted into the guides 36. That is, the plate 30 is moved up and down along the guide 36 while keeping the horizontal state according to the expansion and contraction of the bellows 26. A weight 38 as a pressing means is placed on the plate 30 during use. The weight 38 has a sufficient weight to compress the bellows 26, and when the liquid is taken out from the storage container 12, the volume of the storage container 12 is reduced by the same volume as the taken out volume. It is designed to prevent air from entering. When the storage container 12 has a large capacity, the pressurizing means is not a weight but mechanical means such as hydraulic pressure or pneumatic pressure.

Next, the operation will be described. At the time of setting, the storage container 12 and the introduction pipe 14 are filled with the liquid so that air does not enter the storage container 12 and the introduction pipe 14. In the state shown in FIG. 1, the storage container 12 is filled with liquid, and the open / close valve 18 and the discharge valve 22 are closed. When the liquid is to be taken out from the state of FIG. 1, the discharge valve 22 is opened while the open / close valve 18 is closed. Since the opening / closing valve 18 closes the introduction pipe 14, the liquid in the storage container 12 is taken out from the taking-out pipe 16 via the introduction pipe 14 (arrow A in FIG. 1). Since the storage container 12 is pushed from above by the weight 38, the bellows 26 of the storage container 12 contracts by the volume corresponding to the liquid taken out from the discharge valve 22, and the volume of the storage container 12 decreases. That is, since the volume of the storage container 12 is reduced by the volume corresponding to the liquid taken out, air does not enter the storage container 12 from the opening of the pipe 16 for taking out through the introduction pipe 14. In this way, even if the liquid is taken out of the storage container 12, air does not enter the storage container 12, so that the liquid in the storage container 12 is kept in a hermetically sealed state, and the oxidation and deterioration of the liquid can be prevented. For example, when the liquid is ionized water, the ionized water stored in the storage container 12 can be prevented from deteriorating for about 30 days.

When a large amount of the liquid in the storage container 12 is taken out, that is, when the bellows 26 is compressed and the volume of the storage container 12 is reduced, the liquid must be supplied to the storage container 12. In this case, the discharge valve 22 is closed, the opening / closing valve 18 in the middle of the introduction pipe 14 is opened, and the pump 20 is operated. The liquid sent from the pump 20 is introduced into the storage container 12 via the introduction pipe 14 (arrow B in FIG. 1) and increases the volume of the storage container 12 while pushing up the weight 38. At this time, since only liquid that does not contain air is supplied to the introduction pipe 14, only liquid is introduced into the storage container 12. In this way, the liquid stored in the storage container 12 is kept in a closed state in which it does not come into contact with oxygen in the atmosphere, and therefore the quality of the liquid stored in the storage container 12 deteriorates even if it is stored for a long period of time. There is no.

Although the storage container 12 is composed of the bellows 26 in the above-mentioned embodiment, another structure may be used as long as the region for containing the liquid can be changed in a sealed state. For example, as shown in FIG. 3, a storage container 40 having a floating piston 42 that moves up and down while maintaining hermeticity may be used. The floating piston 42 has, for example, a seal 46 on the outer periphery of the piston 44, and the seal 46 contacts the inner wall of the storage container 40 to maintain a hermetic seal. If the gap between the outer wall of the piston 44 and the inner wall of the storage container 40 is narrow, some seals can be maintained without the seal 46. As the pressurizing means, the piston 44 itself functions as a weight. Alternatively, as the pressurizing means, a weight 38 may be placed, a spring may be used to press the piston 44, or the piston 44 may be pressed by another liquid or gas.

[0014]

[Effect of device]

 According to the liquid storage device of the present invention, the liquid can be taken in and out of the storage container without touching the air, and can be stored in the storage container for a long time without deteriorating the quality. Can be used.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a liquid storage device according to the present invention.

FIG. 2 is a plan view of a plate used in the present invention.

FIG. 3 is a cross-sectional view of another storage container used in the present invention.

[Explanation of symbols]

 10 Tank 12 Storage Container 16 Extraction Pipe 18 Open / Close Valve 20 Pump 22 Discharge Valve 26 Bellows 28 Bottom 30 Plate 36 Guide 38 Pressurizing Means 40 Storage Container 42 Floating Piston

Claims (8)

[Scope of utility model registration request] 1. A storage container in which the volume of a liquid-containing region changes while maintaining a sealed state, a tank for supplying the liquid, an introduction pipe connecting the storage container and the tank, and an introduction pipe thereof. An opening / closing valve provided in the middle of the container, a take-out pipe communicating with the introduction pipe between the storage container and the opening / closing valve, a discharge valve provided in the middle of the take-out pipe, and a liquid in the storage container. It has a pressurizing means to reduce the volume, and when inserting liquid from the tank into the storage container, open the open / close valve and close the discharge valve to introduce only liquid without mixing air into the storage container. When the liquid is taken out from the storage container, the discharge valve is opened and the opening / closing valve is closed, and the internal volume of the storage container is reduced by the volume varying means to empty the storage container. A liquid storage device characterized by being careful. 2. The liquid storage device according to claim 1, wherein the liquid storage device is formed of a bellows which constitutes a part of the storage container. 3. The liquid storage device according to claim 2, wherein the pressurizing means is a weight placed on the storage container. 4. The liquid storage device according to claim 1, wherein the storage container has a floating piston that moves up and down in a state of being sealed with an inner wall of the storage container. 5. The liquid storage device according to claim 5, further comprising a pressurizing unit for pressurizing the floating piston downward. 6. The introduction pipe is connected to the bottom surface of the storage container, and the bottom surface is an inclined surface such that the connection point of the introduction pipe is the lowest, and the extraction pipe and the storage container to the extraction pipe are connected to each other. The liquid storage device according to claim 1, wherein the introduction pipe and the introduction pipe are arranged at a lower position than the storage container. 7. A plate fixed to the upper part of the storage container, for contacting the pressurizing means on the upper part thereof, and a plate for engaging the plate and moving the storage container in a horizontal position. The liquid storage device according to claim 1, wherein the guide is provided with. 8. The liquid storage device according to claim 1, wherein a pump is provided in the middle of the introduction pipe on the tank side from the branch position with respect to the extraction pipe.