JP2000317463A - Sterilizable and antibacterial device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sterilizable/antibacterial device capable of sterilizing a food material, etc., in a short time at the time of sterilizing the food material, etc., and also having no hindrance even at the time of antibacterial treatment over a long period of time. SOLUTION: The sterilizable/antibacterial device has the structure having a water supply piping system 1 for flowing the raw water such as city water to a terminal such as water tap, a sterilizing agent addition means 3 for adding hypochlorous acid B to the water supply piping system 1 and an antibacterial agent injection means 2 for injecting a bamboo extracted soln. A to the water supply piping system 1. In this way, the bamboo extracted soln. A and the hypochlorous acid B are injected in the raw water supplied to the water tap and the raw water exhibits sterilizable/antibacterial function for the food material, etc.. Also, the sterilizable/antibacterial agent kills the microorganisms, etc., propagating at the food material, etc., and prevents the propagation of the microorganisms, etc., over a long period of time since the hypochlorous acid B has an immediately effective property and the bamboo extracted soln. A maintains the antibacterial function.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sterilizing / antibacterial apparatus for sterilizing kitchen equipment, foodstuffs, sink tanks and the like using raw water such as tap water and groundwater.

[0002]

2. Description of the Related Art At present, in this kind of sterilization / antibacterial device,
For sterilization and disinfection, chemical treatment is the mainstream, among which low-cost liquid chlorine and sodium hypochlorite are used. In addition, chlorinated isosialic acid, which is stable as a highly bleached powder and solid chlorinating agent and is easy to transport and store, is also used for food injectables.

[0003] However, while the sterilizing / antibacterial apparatus is low in cost and excellent in simplicity of the sterilizing process, it may cause environmental problems in the safety of the medicine itself to human bodies and wastewater treatment.

[0004] In order to solve such problems, a sterilizing apparatus using an electric sterilizing process has been developed. This sterilizing apparatus is to supply an appropriate electric current to water and obtain sterilized water by an electrolysis. In some cases, auxiliary liquids that promote electrolytic action are added due to subtle differences in the method of generating sterilizing water, but since chemicals that affect water quality are basically unnecessary, various problems caused by chemical input are solved. Have been.

[0005]

However, in this disinfecting apparatus, hypochlorous acid, which is a main component having a disinfecting effect, is volatile and has a poor sustaining effect. New problems have arisen, such as the need for a large amount of sterilizing water because the reaction occurs in a short time and the hypochlorous acid concentration is reduced, and the drainage equipment is enlarged.

[0006] In addition, sterilization treatment with ozone water is also performed, but this method has an ozone half-life time in water of several tens of minutes, has a poor sustaining effect of one hour or more, and gives ozone itself to human bodies and foods. There were problems such as unclear effects, and the use was limited.

An object of the present invention is to provide a sterilizing / antibacterial apparatus which can sterilize foods and the like in a short time when sterilizing foods and the like, and which does not hinder antibacterial action for a long time. It is in.

[0008]

According to the present invention, there is provided a sterilizing / antibacterial apparatus according to the first aspect of the present invention, comprising: a water supply pipe system for flowing raw water such as tap water to a terminal such as a faucet; Disinfectant adding means for adding a disinfectant such as chlorine or hypochlorous acid to the water supply pipe system, and antimicrobial agent injecting means for injecting a liquid natural antibacterial agent such as bamboo extract, tea extract, etc. into the water supply pipe system And a structure having:

According to the present invention, a bactericide such as hypochlorous acid and a natural antibacterial agent such as a bamboo extract are injected into raw water supplied to the faucet, and the raw water exerts a bactericidal and antibacterial action on foodstuffs and the like. .

[0010] Here, hypochlorous acid has an immediate effect as a bactericide, and a natural antibacterial agent keeps its antibacterial action, so that microorganisms and the like breeding in foods can be killed in a short time,
In addition, the antimicrobial action can prevent the growth of microorganisms for a long time.

As means for injecting the natural antibacterial agent and for adding the antibacterial agent (sodium hypochlorite), the invention according to claims 2 and 6 injects and adds to the water supply piping system by pump means. The invention of the seventh aspect adopts a structure of injecting and adding to the water supply piping system under natural flow, and the inventions of claims 4 and 8 adopt a structure of injecting and adding to the water supply piping system by a suction device.

Further, as means for adjusting the amount of a bactericide or a natural antibacterial agent to be injected or added to raw water, the invention according to claims 5 and 9 adjusts the amount by a flow rate adjusting means. Is adjusted by a timer, and in the invention of claim 12, the opening time of the on-off valve is adjusted by the timer.

[0013] According to a tenth aspect of the present invention, sterile water may be added by supplying a saline solution to the raw water and electrolyzing it.

[0014]

1 to 6 show a first embodiment of a disinfection / antibacterial device according to the present invention. FIG. 1 shows a disinfection / antibacterial device.
A water circuit diagram of the antibacterial device, FIG. 2 is a bactericidal effect table of electrolytic germicidal water (water containing hypochlorous acid), FIG. 3 is a graph showing a temporal change in hypochlorous acid concentration, and FIG. Antibacterial effect table,
FIG. 5 is a graph showing the temporal change of the concentration of the natural antibacterial agent (bamboo extract), and FIG. 6 is a graph showing the sterilization effect of water obtained by mixing hypochlorous acid and the bamboo extract.

As shown in FIG. 1, this sterilizing / antibacterial device has a water supply piping system 1 connected to a water pipe or a drinking water storage tank. A faucet 11 of a kitchen is connected to an end of the water supply piping system 1 to supply raw water such as tap water through the faucet 11. On the other hand, a natural antibacterial agent injection device 2 and a disinfectant addition device 3 are provided in parallel near the end of the water supply piping system 1.

The natural antibacterial agent injection device (hereinafter referred to as the injection device) 2 has an antibacterial agent storage tank 21 in which a natural antibacterial agent A is stored. Examples of the natural antibacterial agent A include allyl mustard oil extracted by steam distillation of mustard and wasabi, a liquid extracted from tea, a liquid extracted from bamboo (in the embodiment, the bamboo extract is used), and the like. These exert an antibacterial action against various microorganisms and bacteria. on the other hand,
This disinfectant addition device (hereinafter referred to as an addition device) 3 has a disinfectant storage tank 31 in which a disinfectant B is stored. As the disinfectant A, for example, liquid chlorine or sodium hypochlorite (in this embodiment, this sodium hypochlorite is used) is used, and these exert a disinfecting action on various microorganisms and bacteria. I do.

The bactericidal effect of hypochlorous acid and the antibacterial effect of bamboo extract will be described in comparison with reference to FIG. 2, FIG. 3, FIG. 4 and FIG.

First, the germicidal effect of electrolytic sterilizing water (water containing hypochlorous acid) is slightly different depending on the level of hypochlorous acid concentration (40 ppm, 25 ppm), as is clear from FIG. 4.2 × 10 ⁴ or 5 × at initial stage
10 ⁴ 20 or 10 or less in the viable cell after 30 seconds, 20 or 10 or less after one minute, after 3 minutes 1
It becomes 0 or less, and exhibits a sterilizing effect in a short time. on the other hand,
As is clear from the graph of FIG. 3, when the hypochlorous acid aqueous solution has a pH of 5.6, its spontaneous transpiration is not so large. Then, the concentration of hypochlorous acid decreases. In particular, when the aqueous solution of hypochlorous acid is strongly acidic with a pH of 2.6, its volatility is high, and the concentration decrease due to spontaneous evaporation is remarkable. Therefore, it can be seen that the sterilizing effect in a short time is high, but the persistence of the sterilizing effect is low, and the sterilizing effect is unsuitable for sterilizing foods and the like for a long time.

Next, the antibacterial effect of the bamboo extract will be described.
As shown in FIG. 4, when the raw water is left as it is, 1
Although the number of viable bacteria of 0 or less rises remarkably as the date and time passes, when the bamboo extract is injected into this raw water, 1
Even after one day, maintain the viable count on the first day. In addition, as shown in FIG. 5, spontaneous transpiration of the bamboo extract is extremely small, and even when the bamboo extract comes into contact with foodstuffs, its concentration is slightly reduced, and the antibacterial action is maintained for a long time. I can understand.

As described above, hypochlorous acid has an excellent sterilizing effect in a short time, whereas bamboo extract has an excellent antibacterial effect over a long period of time. Therefore, as shown in FIG. 6, the two are mixed at a predetermined concentration ratio (hypochlorous acid / bamboo extract). Here, the 10 ³ viable cell count after 3 minutes obtaining a mixing ratio of 10 or less, it is sufficient that a mixture ratio of 85% or more. Therefore, when the hypochlorous acid and the bamboo extract are added to the raw water so as to obtain the mixing ratio of 85%, foods and the like can be sterilized in a short time and also have excellent antibacterial properties for a long time.

The injection device 2 and the addition device 3 have pumps 22 and 32, check valves 23 and 33, a mixer 24, and a control device 25. Each of the pumps 22 and 32 is connected to a mixer 24 from a storage tank 21 and 31 through a check valve 23 and 33.
The bamboo extract A and sodium hypochlorite B are mixed with the raw water by the mixer 24. In addition, the control device 25 is the faucet 1
The pumps 22 and 32 are driven in response to the opening operation (1).

In the sterilizing / antibacterial apparatus configured as described above, since bamboo extract A and sodium hypochlorite B, which are natural antibacterial agents, are mixed in the raw water. -Antibacterial action is exerted, and bacteria and microorganisms adhering to the food are reduced. In addition, short-time sterilization of food can be realized with hypochlorous acid, and long-time antibacterial can be realized with bamboo extract. When only short-time sterilization is required, the pump 22
When only the antibacterial is required for a long time, only the pump 32 may be driven. Further, this sterilizing / antibacterial device can of course be used not only for food materials but also for sterilizing kitchen appliances and think tanks.

FIG. 7 shows a sterilizing / antibacterial device according to a second embodiment of the present invention. In this embodiment, the driving time of the pumps 22 and 32 is controlled by a timer 26. According to this embodiment, the drive time of the pumps 22 and 32 is arbitrarily set by the timer 26. Thereby, the supply amounts of the bamboo extract A and the sodium hypochlorite B to the raw water can be adjusted, and the concentrations of the bamboo extract A and the sodium hypochlorite B can be adjusted to desired values. Other configurations and operations are the same as those of the first embodiment.

FIG. 6 shows a sterilizing / antibacterial device according to a third embodiment of the present invention. In this embodiment, the antibacterial agent storage tank 21 and the germicide storage tank 31 are installed at a position above the water supply piping system 1 and the control device 25
Controls the opening operation time of the on-off valves (solenoid valves) 27 and 37,
The supply amounts of the bamboo extract A and the sodium hypochlorite B to the mixer 24 are controlled. According to this embodiment, liquid pumping means such as the pumps 22 and 32 become unnecessary, and the cost is reduced. The other configuration and operation are the same as those of the first embodiment, and the description thereof will be omitted.

FIG. 9 and FIG.
It shows a fourth embodiment of the antibacterial device. In this embodiment, the control device 25 controls the opening and closing of the electromagnetic valves 27 and 37, and suctions as a means for injecting and adding the bamboo extract A and the sodium hypochlorite B from the storage tanks 22 and 32 to the water supply piping system 1. The container 28 is used.

The structure of the suction device 28 will be described with reference to FIG. This suction device 28 is already known,
As shown in FIG. 10, the first inlet 28a is connected to the solenoid valve 2
The bamboo extract A and the sodium hypochlorite B are connected to the storage tanks 21 and 31 through the first inlet 28a. Further, the second inlet 28b is connected to the water supply piping system 1
The outlet 28c is connected to the faucet 11 on the upstream side, respectively, to form a venturi structure. Thereby, when the raw water flows in the suction device 28, the bamboo extract A and the sodium hypochlorite B in the storage tanks 21 and 31 are sucked into the suction device 28 and mixed with the raw water by the flow rate of the raw water. Water is supplied from the faucet 11.

According to the present embodiment, pumping means such as the pumps 22 and 32 that consume power are not required, and low cost can be realized. The other configuration and operation are the same as those of the first embodiment, and the description thereof will be omitted.

FIG. 11 shows a fifth embodiment of the sterilizing / antibacterial device according to the present embodiment. In this embodiment, the solenoid valves 27 and 3 of the sterilizing / antibacterial device according to the fourth embodiment are used.
7 is replaced with flow control valves 29 and 39. According to this embodiment, the flow control valves 29 and 39 are controlled by the control device 25, and the bamboo extract A and the sodium hypochlorite B flowing from the storage tanks 21 and 32 to the suction device 28 are used.
Is adjusted. The other configuration and operation are the same as those of the fourth embodiment, and the description thereof will be omitted.

FIG. 12 shows a sterilizing / antibacterial device according to a sixth embodiment of the present invention. In this embodiment, the electrolytic tank 4 is installed in the water supply piping system 1 according to the fourth embodiment shown in FIGS. 9 and 10, and the saline C is stored in the disinfectant storage tank 31 instead of sodium hypochlorite. ing.

According to this embodiment, the salt solution C supplied to the water supply piping system 1 is electrolyzed in the electrolytic cell 4 to generate hypochlorous acid. Therefore, not only the bamboo extract A but also water to which hypochlorous acid is added is supplied from the faucet 11. The other configuration and operation are the same as those of the fourth embodiment, and the description thereof will be omitted.

[0031]

As described above, according to the present invention,
A natural antibacterial agent such as bamboo extract and a bactericide such as hypochlorous acid are added to the raw water supplied to the faucet, and this raw water exerts a bactericidal and antibacterial effect on foodstuffs, etc. Has an immediate effect as a bactericide, and natural antibacterial agents have a long lasting antibacterial action. It can inhibit the growth of microorganisms.

[Brief description of the drawings]

FIG. 1 is a water circuit diagram of a sterilization / antibacterial device according to a first embodiment.

FIG. 2 Table of sterilization effects of electrolytic sterilization water (water containing hypochlorous acid)

FIG. 3 is a graph showing the temporal change of hypochlorous acid concentration.

FIG. 4 Antibacterial effect table of water containing bamboo extract

FIG. 5 is a graph showing the change over time of the concentration of a natural antibacterial agent (bamboo extract).

FIG. 6 is a graph showing the sterilizing effect of water obtained by mixing hypochlorous acid and bamboo extract.

FIG. 7 is a water circuit diagram of a disinfection / antibacterial device according to the second embodiment.

FIG. 8 is a water circuit diagram of a sterilization / antibacterial device according to a third embodiment.

FIG. 9 is a water circuit diagram of a sterilizing / antibacterial device according to a fourth embodiment.

FIG. 10 is a sectional view of a suction device.

FIG. 11 is a water circuit diagram of a sterilizing / antibacterial device according to a fifth embodiment.

FIG. 12 is a water circuit diagram of a sterilizing / antibacterial device according to a sixth embodiment.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Water supply piping system, 2 ... Antibacterial agent injection device, 3 ... Disinfectant addition device, 4 ... Electrolyzer, 11 ... Faucet, 21, 31 ... Storage tank, 22, 32 ... Pump, 26 ... Timer, 27, 37 ...
Solenoid valve, 28 ... Suction device, 29, 39 ... Flow control valve, A ...
Bamboo extract, B: sodium hypochlorite, C: saline.

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) C02F 1/46 C02F 1/46 Z

Claims (12)

[Claims] 1. A water supply piping system for flowing raw water such as tap water to a terminal such as a faucet, and a disinfectant adding means for adding a liquid disinfectant such as liquid chlorine and sodium hypochlorite to the water supply piping system; An antibacterial agent injecting means for injecting a liquid natural antibacterial agent such as a bamboo extract or a tea extract into the water supply piping system. 2. The antibacterial agent injection means has an antibacterial agent storage tank for storing a natural antibacterial agent, and a pump means for supplying the natural antibacterial agent in the antibacterial agent storage tank to the water supply piping system. The sterilizing / antibacterial device according to claim 1, wherein 3. The antibacterial agent injection means has an antibacterial agent storage tank for storing a natural antibacterial agent, and an open / close valve for restricting and releasing outflow of the natural antibacterial agent from the antibacterial agent storage tank. The sterilizing / antibacterial device according to claim 1, wherein the agent storage tank is disposed at a position above the water supply piping system. 4. The antimicrobial agent injecting means includes an antimicrobial agent storage tank for storing a natural antimicrobial agent, an on-off valve for restricting and releasing outflow of the natural antimicrobial agent in the antimicrobial agent storage tank, The sterilizing / antibacterial apparatus according to claim 1, further comprising a suction device that draws a natural antibacterial agent in the antibacterial agent storage tank into the water supply piping system by a suction force of raw water according to a flow rate. 5. The antibacterial agent injecting means supplies the natural antibacterial agent in the antibacterial agent storage tank with an antibacterial agent storage tank for storing a natural antibacterial agent and a suction force of raw water accompanying a flow rate of the water supply piping system. 2. The sterilizing / antibacterial device according to claim 1, further comprising: a suction device drawn into the piping system; and a flow rate adjusting means for adjusting an amount of liquid sucked by the suction device. 6. The disinfectant adding means has a disinfectant storage tank for storing disinfectant, and pump means for supplying disinfectant in the disinfectant storage tank to the water supply piping system. The sterilizing / antibacterial device according to claim 1. 7. The disinfectant storage means includes a disinfectant storage tank for storing disinfectant, and an on-off valve for restricting and releasing outflow of the disinfectant from the disinfectant storage tank. The sterilizing / antibacterial device according to claim 1, wherein the tank is disposed at a position above the water supply piping system. 8. The disinfectant adding means includes a disinfectant storage tank for storing disinfectant, an on-off valve for restricting and releasing outflow of the disinfectant in the disinfectant storage tank, and a flow rate of the water supply piping system. 2. The sterilizing / antibacterial apparatus according to claim 1, further comprising a suction device that draws a sterilizing agent in the sterilizing agent storage tank into the water supply piping system by a suction force of the raw water. 9. The disinfectant adding means includes a disinfectant storage tank for storing disinfectant and a disinfectant in the disinfectant storage tank by suction of raw water according to a flow rate of the water supply piping system. 2. The sterilizing / antibacterial device according to claim 1, further comprising a suction device drawn into the inside, and flow rate adjusting means for adjusting an amount of liquid sucked by the suction device. 10. The disinfectant adding means includes a disinfectant storage tank for storing a saline solution, a pump means for supplying the saline solution in the disinfectant storage tank to the water supply piping system, and a supply means for supplying the saline water to the water supply piping system. The sterilizing / antibacterial device according to claim 1, further comprising: an electrolytic cell configured to electrolyze the prepared saline solution to generate electrolytic sterilizing water. 11. The sterilizing / antibacterial device according to claim 2, wherein said pump means controls a driving time by a timer. 12. The sterilizing / antibacterial apparatus according to claim 3, wherein the opening / closing valve controls the opening time by a timer.