JPH066298U - Liquid supply device - Google Patents

Abstract

(57) [Summary] [Structure] A connector 5 for detachably connecting to the liquid storage container 2 in a liquid supply path 4 from a liquid storage container 2 which is removable to a casing 1 to a stopper 3 for taking out liquid. The liquid supply pump 6 and the cooler 7A are arranged in a line from the upstream to the downstream in the order in which they are described, the disinfection filter 15 is provided in the liquid supply passage portion from the connector 5 to the liquid supply pump 6, and the cooler 7A to the plug 3 is provided. The disinfection filter 9 is provided in the liquid supply passage portion, and the liquid contact surface between the liquid supply passage portion 4A from the connector 5 to the disinfection filter 15 and the liquid supply passage portion 4a from the disinfection filter 9 to the stopper 3 is made antibacterial, The liquid contact surface between the connector 5 and the stopper 3 is made antibacterial. [Effect] By antibacterial, it is possible to prevent reverse contamination from the stopper and contamination from the connector and to supply aseptic liquid, but to minimize the antibacterial target for reverse contamination prevention and contamination prevention. The antibacterial cost can be reduced and it can be easily carried out, and it is particularly useful when the liquid is cooled and supplied.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is a liquid supply device that can easily take out beverage liquids such as water and juice. Specifically, a liquid storage container is detachably attached to a casing, and a stopper for taking out liquid is provided. In the liquid supply passage from the liquid storage container to the stopper, a connector for detachably connecting the liquid supply passage to the liquid storage container, a liquid supply pump, and a liquid processing device such as a cooler or a heater are attached. The items are arranged in the stated order from upstream to downstream.

[0002]

[Prior art]

 With this type of liquid supply device, when targeting liquids that do not have sterilizing ability, such as mineral water that does not contain free chlorine, fresh water, and juice, there is no replacement of the liquid, such as the storage container, stopper, pump, etc. Bacteria grow in the small gap where O-rings and packing are placed, and it mixes with the liquid supply. Conventionally, as a measure against the bacteria, a means for sterilization by incorporating an ultraviolet sterilization lamp or a heat sterilization device, or a means for sterilization by incorporating a membrane filtration device such as an ultrafiltration membrane has been adopted.

[0003]

[Problems to be solved by the device]

 However, either by sterilization by ultraviolet irradiation or heating, or sterilization by membrane filtration, the liquid remaining attached to the outlet of the stopper comes into contact with the outside air, and reverse contamination in which bacteria grow in the attached liquid remains inevitable. During the next liquid supply, bacteria are mixed in the liquid, and when the liquid storage container is replaced, the inner surface of the connector for connecting the liquid supply passage to the liquid storage container is exposed, so that the inner surface of the connector is There was a drawback in that it was easily contaminated by contact with other substances and the atmosphere, causing bacterial growth, which was mixed in the liquid supply. An object of the present invention is to eliminate the above drawbacks.

[0004]

[Means for Solving the Problems]

 One of the features of the liquid supply device according to the present invention is that a cooler is provided as the liquid treatment device, and a disinfection filter for an inlet is provided in the liquid supply passage from the connector to the liquid supply pump in the liquid supply passage. And a disinfection filter for the outlet is provided in the liquid supply path portion from the cooler to the stopper, and the liquid contact surface of the portion of the liquid supply path from the connector to the disinfection filter for the inlet, The liquid contact surface of the portion from the outlet sterilization filter to the stopper is antibacterial, and the liquid contact surface of the connector and the liquid contact surface of the stopper are antibacterial. The second feature of the liquid supply device according to the present invention is that a heater is provided as the liquid treatment device, and a sterilizing filter for an inlet is provided in a liquid supply passage portion of the liquid supply passage from the connector to the liquid supply pump. In the liquid supply path, the liquid contact surface of the part from the connector to the sterilization filter for the inlet and the liquid contact surface of the part from the heater to the stopper are made antibacterial, The surface and the contact surface of the stopper are antibacterial.

[0005]

[Action]

 In any of the above features, since a sterilizing filter for the inlet is provided, even if the target liquid does not have a sterilizing ability, the liquid stored in the liquid supply passage when the liquid storage container is replaced Even if the inner surface of the connector that is detached from the container is contaminated by contact with people, other objects, or the atmosphere, it is possible that the bacteria will invade and spread to the liquid supply passage part downstream of the sterilization filter for the inlet. It can be prevented. Moreover, since the liquid contact surface of the part from the connector to the disinfecting filter for the inlet of the liquid supply path and the liquid contact surface of the connector are made antibacterial, bacteria are physically present on the antibacterial liquid contact surface. By contacting the bacteria, the bacteria can be killed and the growth of the bacteria can be prevented. As a result, the bacteria to be removed by the sterilization filter for the inlet can be reduced and clogging of the sterilization filter can be suppressed. When a cooler is provided as a liquid treatment device to cool the liquid, if bacteria are mixed in the liquid when the liquid that does not have bactericidal activity is targeted, the growth of the bacteria is unavoidable. However, according to No. 1 of the above characteristics, since the sterilizing filter for the outlet is provided, even if bacteria enter from the mouth of the stopper, the bacterium is on the distillation side of the sterilizing filter for the outlet. It is possible to prevent the liquid from penetrating and diffusing into the liquid supply path part of Moreover, since the wetted surface of the part from the sterilization filter for the outlet to the stopper and the wetted surface of the stopper are made antibacterial, even if bacteria enter from the mouth of the stopper, they will not grow and will be sterilized. The state can be maintained. According to No. 2 of the above characteristics, since the liquid contact surface from the heater to the stopper and the liquid contact surface of the stopper are made antibacterial, focusing on the fact that the liquid can be sterilized by heating the liquid, the heat sterilized heating liquid can be used. Not only can it be supplied, but even if bacteria enter from the mouth of the stopper, it can be prevented from growing and sterility can be maintained.

[0006]

[Effect of device]

 Therefore, according to the present invention, by antibacterial, the reverse contamination from the stopper is prevented, and the contamination from the connector for connection with the liquid storage container is prevented, so that the sterile liquid can be always supplied. However, in order to prevent reverse contamination from the stopper, the antibacterial target is to be localized from the sterilization filter for the outlet to the stopper, and to prevent contamination from the connector for connection with the liquid storage container. By making the antibacterial target as small as possible, for example, by localizing the antibacterial target from the connector to the inlet sterilization filter, the cost of antibacterial can be reduced, and replacement or cleaning due to clogging of the filter is possible. A liquid supply device that can be easily implemented by reducing the frequency and cost of maintenance for the filter, especially useful when cooling and supplying the liquid, and antibacterial prevents reverse contamination from the stopper. And storage container For preventing the contamination from the connector for the connection of the connector and always supplying aseptic heating liquid, the antibacterial target for preventing the reverse contamination from the stopper should be localized from the heater to the stopper, and In order to prevent contamination from the connector for connection with the liquid storage container, the antibacterial target is to be localized from the connector to the sterilization filter for the inlet. It is possible to provide a liquid supply device for heating liquid, which can reduce the cost of antibacterial treatment, reduce the number of times of maintenance and cost for the filter such as replacement and cleaning due to clogging of the filter, and can be easily performed. It became so.

[0007]

【Example】

 The liquid supply device is mainly used for supplying natural water or mineral water. As shown in FIG. 1, a liquid storage container 2 is detachably installed in a casing 1 and a liquid extraction plug is provided. 3, a liquid supply passage 4 from the liquid storage container 2 to the stopper 3, a connector 5 for detachably connecting the liquid supply passage 4 to the liquid storage container 2, a liquid supply pump 6, and a liquid treatment device. 7 and a controller 8 are provided. There are two plugs 3 for cooling liquid 3A and for heating liquid 3B, both of which are electromagnetic valves. The liquid supply path 4 is for supplying the liquid in the liquid storage container 2 in a branched manner to the cooling liquid stopper 3A and the heating liquid stopper 3B, and the liquid supply pump 6 is provided at a position upstream of the branch portion. Is provided. The liquid treatment device 7 is provided in a cooler 7A provided in a branch passage portion to the cooling liquid stopper 3A and a branch passage portion to a heating liquid stopper 3B in the liquid supply passage 4. It consists of a heater 7B. The cooler 7A includes a water tank 7a, an evaporator 7b of a cooler for cooling the water in the water tank 7a, a cooling coil 7c for cooling the liquid in the water tank 7a, and a motor for stirring the water in the water tank 7a. 7d. The heater 7B includes a tank 7e for receiving the liquid and a heater 7f for heating the liquid in the tank 7e. The cooler has a well-known structure including the evaporator 7b, the compressor, the condenser, the expansion valve, and the like, and is entirely installed in the casing 1 including the components other than the evaporator 7b. Then, a contamination prevention means for preventing contamination from bacteria entering from the connector 5 with the liquid storage container 2 of the liquid supply path 4, and a cooling liquid sterilization means for sterilizing the cooling liquid to be supplied. A heating liquid sterilization means for sterilizing the heating liquid is provided. The contamination preventing means is provided with a sterilizing filter 15 for an inlet at a portion of the liquid supply passage 4 from the connector 5 to the liquid supply pump 6, and the sterilization filter 15 is provided from the connector 5 of the liquid supply passage 4. By making the liquid contact surface of the portion 4A up to the part 4A antibacterial and the liquid contact surface of the connector 5 also antibacterial, the bacteria are killed by the contact of the bacteria with the liquid contact surface, and the sterilization filter 15 further removes the bacteria. It is a means of preventing contamination by preventing the invasion and diffusion of bacteria to the downstream side. The cooling liquid sterilization means is provided with an outlet sterilizing filter 9 in the liquid supply passage portion of the liquid supply passage 4 from the cooler 7A to the stopper 3A, and plugs the liquid supply passage 4 from the sterilization filter 9 into a plug. By making the liquid contact surface of the portion 4a reaching 3A antibacterial and also the liquid contact surface of the stopper 3A antibacterial, it is possible to kill the bacteria by contacting the liquid contact surface of the bacteria invading from the mouth of the stopper 3A. At the same time, the sterilization filter 9 is a means for preventing the invasion and diffusion of bacteria to the upstream side of the filter to prevent reverse contamination. The sterilization filter 15 for the inlet and the sterilization filter 9 for the outlet are membrane filtration devices equipped with a membrane such as an ultrafiltration membrane. The heating liquid sterilization means sterilizes the liquid contact surface of the portion 4b of the liquid supply path 4 extending from the heater 7B to the stopper 3B, and also sterilizes the liquid contact surface of the stopper 3A. This is a means for sterilizing the liquid by heating with 7B, and killing the bacteria invading from the mouth of the stopper 3B by contacting the liquid contact surface to prevent reverse contamination. As an antibacterial means, when the member forming the liquid contact surface is made of a thermoplastic or thermosetting synthetic resin material, a means of mixing an antibacterial agent into the material resin can be mentioned. In the case of using the above material, there may be mentioned a means of applying a resin coating containing an antibacterial agent to the entire surface of the member or the surface portion to be the liquid contact surface. The above-mentioned antibacterial agent kills bacteria by contacting them with bacteria, such as those obtained by exchanging the exchange groups of ion exchangers such as synthetic zeolite and ion exchange resins with metal ions such as silver ions, and insoluble inorganic substances. It carries silver ions. The content of the antibacterial agent for expressing the antibacterial property is 0.5 to 6% of the weight of the resin when the antibacterial agent is a synthetic zeolite in which silver ions are bound. In addition, as a means for containing a predetermined amount of the antibacterial agent in the resin, a resin having a content larger than the predetermined amount (for example, 16%) is prepared, and a resin containing no antibacterial agent is added to the resin. Means for adjusting the amount to a predetermined amount can be mentioned, and it is desirable to use a dispersant, a lubricant and the like in combination in order to surely exhibit the antibacterial activity of the surface by sufficiently dispersing it on the surface of the resin molded product. Further, in the liquid supply apparatus, a liquid supply control valve 10 using an electromagnetic valve is provided in a branch path portion of the liquid supply path 4 to the heater 7B, and a float switch 11 for detecting the liquid level in the tank 7e is provided. Is provided, and is configured to always keep the water level in the tank 7e constant. Further, a liquid sensor 14 for detecting the presence or absence of liquid is provided in a portion of the liquid supply path 4 between the connector 5 and the inlet sterilizing filter 15. Reference numeral 16 is a drain drainage passage with a valve 17, 18 is an overflow drainage drainage passage from the tank 7e, and the drainage drained by this is supplied to the water tank 7a as water in the water tank 7a. There is. 19 is a drainage passage with a valve 20 from the tank 7e, 21 is a drainage passage with a valve 22 from the water tank 7a, and 23 is an overflow drainage passage from the water tank 7a to the drainage tray 24. . Then, the controller 8 basically operates the liquid supply pump 6 by turning on the start switch S, and opens the cooling liquid stopper 3A by turning on the switch CS for cooling liquid supply operation. When the switch CS is turned off, the stopper 3A is closed, and when the switch HS for heating liquid supply operation is turned on, the stopper 3B for heating liquid is opened, which is used for cooling liquid supply operation. The liquid supply control valve 10 is opened by turning on the flow switch 11 (when the liquid level is below a certain level) when the switch CS is turned off. Although the cooling liquid and the heating liquid are selectively supplied in the above embodiment, the present invention may be configured to supply only the cooling liquid, and conversely, the heating liquid may be supplied. It may be configured to perform only.

It should be noted that reference numerals are added to the claims of the utility model for convenience of comparison with the drawings, but the present invention is not limited to the configurations of the accompanying drawings by the entry.

[Brief description of drawings]

[Fig. 1] Piping system diagram

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Casing 2 Storage container 3 Stopper 4 Liquid supply path 5 Connector 6 Liquid supply pump 7 Liquid processing device 7A Cooler 7B Heater 15 Sterilization filter for inlet 9 Disinfection filter for outlet 4A Liquid supply passage part 4a Supply Part of liquid passage 4b Part of liquid supply passage

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroaki Sasaki Inventor Hiroaki Sasaki 1023 Yamazaki, Shimamoto-cho, Mishima-gun, Osaka Prefectural Technology Development Center, Suntory Co., Ltd. 3 Suntory Co., Ltd. (72) Creator Goro Fujiwara 1-323, Dojimahama, Kita-ku, Osaka, Osaka Prefecture Takuma Co., Ltd. (72) Mitsunobu Masuda 1-3-23, Dojimahama, Kita-ku, Osaka, Osaka In Takuma Co., Ltd. (72) Inventor Jun Kawaguchi 1-3-23 Dojimahama, Kita-ku, Osaka City, Osaka Prefecture In Takuma Co., Ltd.

Claims (2)

[Scope of utility model registration request] 1. A liquid storage container (2) is detachably attached to a casing (1), and a stopper (3) for taking out liquid is provided.
And a connector for detachably connecting the liquid supply passage (4) to the liquid storage container (2) to the liquid supply passage (4) from the liquid storage container (2) to the stopper (3) ( 5) A liquid supply device, in which the liquid supply pump (6) and the liquid treatment device (7) are arranged in the stated order from upstream to downstream,
A cooler (7A) is provided as the liquid treatment device (7), and the disinfection for the inlet is provided in the liquid supply passage portion of the liquid supply passage (4) from the connector (5) to the liquid supply pump (6). Filter (1
5) and disinfection filters (9) for outlets are provided in the liquid supply passage portions from the cooler (7A) to the stopper (3), and the connector (5) of the liquid supply passages (4) is provided. The liquid contact surface of the portion (4A) extending from the sterilization filter (15) for the inlet to the portion (4) extending from the sterilization filter (9) for the outlet to the stopper (3)
A liquid supply device in which the liquid contact surface of a) is made antibacterial, and the liquid contact surface of the connector (5) and the liquid contact surface of the stopper (3) are made antibacterial. 2. A liquid storage container (2) is detachably attached to a casing (1), and a stopper (3) for taking out liquid is provided.
And a connector for detachably connecting the liquid supply passage (4) to the liquid storage container (2) to the liquid supply passage (4) from the liquid storage container (2) to the stopper (3) ( 5) A liquid supply device, in which the liquid supply pump (6) and the liquid treatment device (7) are arranged in the stated order from upstream to downstream,
A heater (7B) is provided as the liquid treatment device (7), and a disinfection filter for an inlet is provided in a liquid supply passage portion of the liquid supply passage (4) from the connector (5) to the liquid supply pump (6). (15)
Is provided on the liquid contact surface of a portion (4A) of the liquid supply path (4) from the connector (5) to the sterilization filter (15) for the inlet, and from the heater (7B) to the stopper (3). Everything (4
A liquid supply device in which the liquid contact surface of b) is antibacterial, and the liquid contact surface of the connector (5) and the liquid contact surface of the stopper (3) are antibacterial.