WO2012137580A1

WO2012137580A1 - Water treatment device

Info

Publication number: WO2012137580A1
Application number: PCT/JP2012/056404
Authority: WO
Inventors: 俊輔森
Original assignee: パナソニック株式会社
Priority date: 2011-04-08
Filing date: 2012-03-13
Publication date: 2012-10-11
Also published as: JP2012217926A

Abstract

This water treatment device is provided with water conduits (11, 12); a water tap (30) provided with a discharge opening (31) for discharging raw water or clean water that has passed through the water conduits (11, 12); an ozone generator (40) for generating ozone gas containing a sterilization component; a circulation flow path (13), which branches off from the water conduits, for passing ozone gas; and a connection apparatus (32) for connecting the discharge opening (31) and the circulation flow path (13). The ozone generator (40) circulates ozone gas inside the water conduits and the circulation flow path (13) via the connection apparatus (32).

Description

Water treatment equipment

The present invention relates to a water treatment apparatus.

Conventionally, various proposals have been made on water treatment apparatuses that purify raw water such as tap water by a purification unit equipped with activated carbon that removes chlorine to produce purified water.

For example, a water treatment apparatus is known that includes a bypass pipe that branches off from a secondary flow path of a purification section provided in a water conduit and communicates with a primary flow path of the purification section (see Patent Document 1). . In this conventional water treatment apparatus, an ozone generator (fluid generator) that generates ozone water (fluid) by adding ozone gas (sterilizing component) to water passing through the bypass pipe is disposed.

In this conventional water treatment device, when water supply is not performed for a certain period of time, ozone water containing a sterilizing component is supplied to a part of the primary side flow path and a part of the secondary side flow path via the bypass pipe. Circulate. As a result, it is possible to sterilize and purify the front and rear of the purification unit (that is, a part of the primary side flow path and a part of the secondary side flow path) contaminated by the water staying for a certain time (for example, 1 day or more). The front and back of the section can be kept hygienic.

Japanese Laid-Open Patent Publication No. 2002-263638 (JP 2002-263638 A)

However, the conventional water treatment apparatus described above is sterilized only before and after the purification unit, and in particular, the discharge port in the faucet part to which sterilizing components easily adhere cannot be sterilized. Therefore, there is still room for improvement in sterilizing the discharge port as well as keeping the water conduit hygienic.

Therefore, an object of the present invention is to provide a water treatment apparatus capable of reliably sterilizing the discharge port while keeping the water conduit hygienic.

In order to solve the above-described problems, the present invention has the following characteristics. First, a water treatment apparatus according to the first technical aspect of the present invention is a faucet provided with a water conduit for passing raw water or purified water and a discharge port for discharging raw water or purified water that has passed through the water conduit. A fluid generating unit for generating a fluid containing a sterilizing component, a circulation channel for branching from the water conduit and allowing the fluid to pass through, and a connection device for connecting the discharge port and the circulation channel And the fluid generator circulates the fluid in the conduit and the circulation channel via the connection device.

A raw water supply unit for supplying raw water may be disposed in the water conduit, and the raw water supply unit may include a raw water inlet for inflowing raw water and a raw water inlet sealing device for blocking the raw water inlet.

The water treatment device further includes a sealing state detection device for detecting information in which the discharge port is blocked by the connection device, and the fluid generation unit generates fluid when the sealing state detection device detects information. You may do it.

The water treatment device includes a mode switching unit for switching between a normal mode in which raw water or purified water is discharged from the discharge port and a sterilization mode in which fluid is circulated in the water conduit and the circulation channel, and the connection device is sterilized by the mode switching unit. When is selected, the discharge port and the circulation channel may be connected.

The fluid generation unit includes a fluid generation device for generating a fluid and a fluid decomposition device for decomposing the fluid generated by the fluid generation device. The fluid decomposition device is made of activated carbon, The channel branches into an activated carbon channel that passes through the fluid decomposing device and a non-activated carbon channel that communicates with the activated carbon channel on the downstream side of the fluid decomposing device. A flow path switching mechanism capable of branching the fluid may be provided in either one of the non-activated carbon flow paths.

The water treatment device may further include a fluid state detection device for detecting that the fluid has been decomposed to a specified concentration by the fluid generation unit.

The water treatment device may further include a purification unit for generating purified water by purifying the raw water, and the circulation channel may be communicated with the outlet of the purification unit.

The water treatment device may further include a purification unit for generating purified water by purifying the raw water, and the circulation channel may be communicated with a primary side channel arranged upstream of the purification unit.

The water treatment apparatus according to the first technical aspect of the present invention can reliably sterilize the discharge port while keeping the water conduit hygienic.

Fig.1 (a) is the schematic (normal mode) for demonstrating the water treatment apparatus which concerns on 1st Embodiment, FIG.1 (b) shows the vicinity of the faucet part which concerns on 1st Embodiment. It is an enlarged view (sterilization mode). FIG. 2 is a schematic diagram (normal mode) for explaining a water treatment device according to Modification 1 of the first embodiment. FIG. 3 is a schematic diagram (normal mode) for explaining a water treatment device according to Modification 2 of the first embodiment. Fig.4 (a) is the schematic (normal mode) for demonstrating the water treatment apparatus which concerns on the modification 3 of 1st Embodiment, FIG.4 (b) is the water which concerns on the modification 3 of 1st Embodiment. It is an enlarged view (sterilization mode) which shows the vicinity of a stopper part. FIG. 5 is a schematic diagram (normal mode) for explaining a water treatment device according to Modification 4 of the first embodiment. FIG. 6 is a schematic diagram for explaining a water treatment device according to Modification 5 of the first embodiment. FIG. 7 is a schematic diagram (normal mode) for explaining the water treatment apparatus according to the second embodiment. FIG. 8A is a schematic diagram (normal mode) for explaining the water treatment apparatus according to the third embodiment, and FIG. 8B is a schematic diagram for explaining the circulation flow path according to the third embodiment. It is a figure (sterilization mode).

Next, a water treatment apparatus according to an embodiment of the present invention will be described with reference to the drawings. Specifically, (1) the first embodiment, (2) the second embodiment, (3) the third embodiment, and (4) other embodiments will be described.

In the description of the drawings below, the same or similar parts are denoted by the same or similar reference numerals. However, it should be noted that the drawings are schematic and ratios of dimensions and the like are different from actual ones.

Therefore, specific dimensions should be determined in consideration of the following explanation. Moreover, the part from which the relationship and ratio of a mutual dimension differ also in between drawings may be contained.

(1) 1st Embodiment The water treatment apparatus 1 which concerns on 1st Embodiment is demonstrated referring FIG.

(1-1) Configuration of Water Treatment Device 1 As shown in FIG. 1 (a), the water treatment device 1 is a device that purifies raw water such as tap water. The water treatment apparatus 1 includes a purification unit 10 provided in a water conduit. The purification | cleaning part 10 produces | generates purified water by purifying raw | natural water. The purification part 10 is comprised by separation membranes, such as RO (reverse osmosis), NF, UF (ultrafiltration), MF (microfiltration), for example. In addition, the purification | cleaning part 10 does not necessarily need to be comprised by a separation membrane, For example, you may be comprised by adsorption apparatuses, sand filtration, ion exchange resin, etc., such as activated carbon.

The water conduit on the upstream side of the purification unit 10 is constituted by a primary channel 11 through which raw water passes. A raw water supply unit 20 that supplies raw water is disposed in the primary channel 11. The raw water supply unit 20 includes a raw water supply valve (raw water port sealing device) 22 that can seal a raw water inlet 21 into which raw water flows.

The water conduit on the downstream side of the purification unit 10 is constituted by a secondary-side flow path 12 through which the purified water generated by the purification unit 10 passes. A faucet part 30 is disposed in the secondary channel 12. In addition, the secondary flow path 12 is provided with a circulation flow path 13 that branches from the secondary flow path 12 (in this embodiment, the outlet of the purification unit 10) and through which ozone gas (fluid) containing a sterilizing component passes. Established.

The faucet part 30 is provided with a discharge port 31 for discharging the purified water generated by the purification part 10. The faucet part 30 incorporates an operation panel (not shown) that can operate the water treatment apparatus 1. The faucet part 30 includes a connection device 32 (see FIG. 1B) that shields the discharge port 31 and connects the discharge port 31 and the circulation flow path 13.

The connecting device 32 is configured by a pipe joint that can form a closed space from the discharge port 31 toward the one end 13a of the circulation flow path 13. In other words, the connection device 32 guides ozone gas from the discharge port 31 to the secondary side flow path (in the present embodiment, the outlet of the purification unit 10) through the circulation flow path 13.

In the circulation channel 13 connected to the discharge port 31 by the connecting device 32, a communication valve 14 capable of sealing the other end 13b of the circulation channel 13 is provided. In addition, an ozone generation unit (fluid generation unit) 40 that generates ozone gas (fluid) containing a sterilizing component and a drainage unit 50 that drains unnecessary or harmful water are arranged in the circulation flow path 13.

The ozone generator 40 includes an ozone generator (fluid generator) 41 that generates ozone gas, an ozone decomposer (fluid decomposer) 42 that decomposes ozone gas generated by the ozone generator 41, and the circulation flow path 13. And a circulation pump 43 for circulating ozone gas.

The ozone generator 41 generates ozone gas by an electrolysis method such as a diamond electrode or ultraviolet rays. The ozone generator 41 may generate ozone by a corona discharge method, a creeping discharge method, a glow discharge method, a silent discharge method, an arc discharge method, an ozone ultraviolet method, or the like. Absent.

The ozone decomposing device 42 is arranged downstream of the ozone generating device 41. The ozone decomposition device 42 treats ozone gas by decomposing ozone gas remaining in the circulation flow path 13 and generating oxygen gas. The ozonolysis device 42 is configured by, for example, a device that decomposes ozone gas with ultraviolet rays or a heater.

The circulation pump 43 is arranged upstream of the ozone generation device 41 and the ozone decomposition device 42. The circulation pump 43 may be any device that circulates ozone gas in the circulation flow path 13. In the present embodiment, the circulation pump 43 circulates ozone gas from the one end 13a of the circulation channel 13 toward the other end 13b.

The drainage unit 50 is configured by branching from the circulation flow path 13. The drainage unit 50 is provided with a drainage port 51 for draining unnecessary or harmful water and a drainage valve 52 that can seal the drainage port 51.

The water treatment apparatus 1 includes a control unit (mode switching unit) 60 that controls each part of the water treatment apparatus 1 and performs various calculations. The control unit 60 is connected to the communication valve 14, the raw water supply valve 22, the faucet unit 30, the ozone generation unit 40 (the ozone generation device 41, the ozone decomposition device 42 and the circulation pump 43), and the drain valve 52.

The control unit 60 switches between the normal mode and the sterilization mode based on information from an operation panel (not shown) provided in the faucet unit 30. Normal mode shows the state which discharges purified water from the faucet part 30 (discharge port 31). The sterilization mode indicates a state in which the ozone gas is circulated through the circulation channel 13 that guides the ozone gas to the secondary side channel 12 (in this embodiment, the outlet of the purification unit 10).

(1-2) Operation of the water treatment apparatus 1 (1-2-1) Normal mode When the normal mode is selected by the operation panel provided in the faucet section 30, as shown in FIG. 1 (a), the raw water supply valve As 22 opens, the communication valve 14 closes. And the raw | natural water which flowed in from the raw | natural water inlet 21 passes the primary side flow path 11, and flows into the purification | cleaning part 10, and purified water is produced | generated by the purification | cleaning part 10 purifying raw | natural water. The generated purified water is discharged from the discharge port 31 to the outside.

(1-2-2) Sterilization Mode When the sterilization mode is selected by the operation panel of the faucet section 30, as shown in FIG. 1B, the raw water supply valve 22 and the drain valve 52 are closed, and the communication valve 14 Opens. At this time, after the drain valve 52 is opened and unnecessary or harmful water in the circulation channel 13 is drained from the drain port 51, the drain valve 52 is closed.

When the connection device 32 is attached to the faucet part 30, the connection device 32 communicates from the discharge port 31 to the one end 13a of the circulation flow path 13. At the same time, the ozone generator 41 and the circulation pump 43 are operated. Thereby, ozone gas circulates through the secondary side flow path 12 and the circulation flow path 13. And the secondary side flow path 12, the discharge outlet 31, and the circulation flow path 13 are sterilized by ozone gas. Thereafter, when the ozone generator 41 is stopped, the sterilization process is ended. Then, ozone gas in the secondary flow path 12 and the circulation flow path 13 is decomposed by the ozone decomposition device 42.

Here, in the first embodiment, it is preferable to flow purified water for a certain period of time (for example, 10 seconds) immediately after the sterilization mode is ended and the mode is switched to the normal mode. Moreover, the water treatment apparatus 1 may be provided with the alerting | reporting apparatus which alert | reports having flowed clean water for a fixed time.

(1-3) Actions / Effects As described above, in the water treatment device 1 according to the first embodiment, the connection device 32 connects the discharge port 31 and the circulation flow path 13. In addition, the ozone generator 40 circulates ozone gas in the water conduit (secondary flow path 12) and the circulation flow path 13 through the connection device 32. That is, the ozone gas can be circulated in a state where the secondary side flow path 12 and the circulation flow path 13 are completely blocked from the outside air by the connecting device 32. For this reason, ozone gas always passes through the discharge port 31 when passing through the circulation channel 13 from the secondary channel 12 via the connecting device 32, so that the secondary channel 12 is kept hygienic, The discharge port 31 can be reliably sterilized. Therefore, along with the ability to sterilize the discharge port 31 on which the sterilizing component easily adheres, the sterilizing component adhering to the discharge port 31 volatilizes, the odor to the surroundings, the accidental ingestion of the sterilizing agent component adhering to the discharge port 31, etc. Fear can be reliably prevented.

In the water treatment apparatus 1 according to the first embodiment, a raw water supply unit 20 including a raw water supply valve 22 is disposed in the primary channel 11. Thereby, ozone gas can be circulated in the state which interrupted the water conduit (primary side channel 11 and secondary side channel 12) from outside air completely. For this reason, ozone gas can be prevented from being released to the outside during the sterilization mode, and safety can be improved.

In the water treatment device 1 according to the first embodiment, the circulation channel 13 communicates with the outlet of the purification unit 10. Thereby, since ozone gas passes reliably the secondary side flow path 12 whole region, the secondary side flow path 12 can be kept more hygienic.

In the water treatment apparatus 1 according to the first embodiment, the circulation pump 43 is arranged upstream of the ozone generation apparatus 41 and the ozone decomposition apparatus 42. Thereby, it is possible to prevent the high-concentration ozone gas generated by the ozone generator 41 from passing through the circulation pump 43 immediately. For this reason, it becomes difficult to damage the circulation pump 43, and the durability of the circulation pump 43, that is, the durability of the water treatment apparatus 1 can be improved.

(1-4) Modified Example Next, a water treatment apparatus according to a modified example of the first embodiment will be described with reference to FIGS. In addition, the same code | symbol is attached | subjected to the same part as the water treatment apparatus 1 which concerns on 1st Embodiment, and a different part is mainly demonstrated.

(1-4-1) Modification 1
A configuration of a water treatment apparatus 1A according to Modification 1 of the first embodiment will be described with reference to FIG.

The water treatment device 1 according to the first embodiment is a device that purifies raw water such as tap water. That is, the raw water supply unit 20 is provided with a raw water inlet 21 through which raw water flows and a raw water supply valve 22 (raw water inlet sealing device) that shields the raw water inlet 21.

On the other hand, the first modification is a device for storing raw water such as drinking water. Specifically, as shown in FIG. 2, the raw water supply unit 20 is configured by a tank that stores raw water. The raw water supply unit 20 is provided with a raw water shutter 23 (raw water port sealing device) that shields the raw water port 21.

In the water treatment apparatus 1A according to the first modification of the first embodiment, even if the raw water supply unit 20 is configured by a tank, the action and effect of the water treatment apparatus 1 according to the first embodiment are the same. The ozone gas can be circulated in a state where the water conduit (primary channel 11 and secondary channel 12) is completely blocked from the outside air. For this reason, ozone gas can be prevented from being released to the outside during the sterilization mode, and safety can be improved.

(1-4-2) Modification 2
A configuration of a water treatment device 1B according to Modification 2 of the first embodiment will be described with reference to FIG.

The water treatment device 1B according to Modification 2 of the first embodiment further includes the following configuration in addition to the configuration of the water treatment device 1 according to the first embodiment. That is, as shown in FIG. 3, the water treatment device 1 </ b> B further includes a sensor 15 (sealing state detection device) that detects information in which the discharge port 31 is blocked by the connection device 32.

When the sensor 15 detects information that the discharge port 31 is blocked by the connecting device 32, the ozone generator 40 (the ozone generator 41, the ozone decomposition device 42, and the circulation pump 43) is activated to generate ozone gas. Decompose.

As described above, the water treatment apparatus 1B according to the second modification of the first embodiment includes the sensor 15. Thereby, the sterilization mode can be entered in a state where the connection device 32 connects the discharge port 31 and the circulation flow path 13. For this reason, the discharge port 31 can be reliably sterilized while keeping the secondary flow path 12 hygienic. Moreover, it can prevent that ozone gas is discharge | released outside from the discharge outlet 31, and can improve safety | security.

Here, the sensor 15 may detect the open / closed state of the connection device 32 (that is, the duration of the normal mode). Thereby, the timing which performs sterilization mode can also be measured.

(1-4-3) Modification 3
A configuration of a water treatment apparatus 1C according to Modification 3 of the first embodiment will be described with reference to FIG.

1 C of water treatment apparatuses which concern on the modification 3 of 1st Embodiment are provided with the following structures instead of the connection apparatus 32 of the water treatment apparatus 1 which concerns on 1st Embodiment. That is, as shown in FIG. 4, the water treatment device 1 </ b> C includes a discharge shutter 33 (connection device) that connects the discharge port 31 and the circulation flow path 13. When the sterilization mode is selected by the operation panel of the faucet unit 30, that is, when the control unit 60 determines that the sterilization mode is selected, the discharge shutter 33 is connected to the discharge port 31 and the circulation channel according to an instruction from the control unit 60. 13 is automatically connected.

As described above, in the water treatment apparatus 1C according to the third modification of the first embodiment, the connection device 32 does not connect the discharge port 31 and the circulation flow path 13 with the instruction (sterilization mode) of the control unit 60. The discharge port 31 and the circulation flow path 13 are connected by the above information). For this reason, even if an operator does not connect the discharge port 31 and the circulation flow path 13 using the connection device 32, the connection device 32 automatically connects the discharge port 31 and the circulation flow path 13. The amount of work when performing the mode can be reduced.

The connection device 32 does not need to be configured by the discharge shutter 33 and may have any structure that can form a closed space from the discharge port 31 to the circulation flow path 13.

(1-4-4) Modification 4
The configuration of a water treatment device 1D according to Modification 4 of the first embodiment will be described with reference to FIG. 5. In the water treatment device 1 according to the first embodiment, the ozone decomposition device 42 uses ozone gas such as ultraviolet rays or a heater. Constructed by a device that disassembles.

In contrast, in the water treatment device 1D according to the fourth modification of the first embodiment, the ozone decomposition device 42 is made of activated carbon. In this case, as shown in FIG. 5, the circulation channel 13 is branched from the circulation channel 13 and passes through the ozone decomposing device 42, and the activated carbon channel 13 </ b> A is branched from the circulation channel 13 and the ozone decomposing device 42. Branches downstream to a non-activated carbon channel 13B communicating with the activated carbon channel 13A. A flow path switching valve 16 capable of branching ozone gas into either the activated carbon flow path 13A or the non-activated carbon flow path 13B is provided at a branch point between the activated carbon flow path 13A and the non-activated carbon flow path 13B.

When the ozone gas is not decomposed (sterilization mode), the flow path switching valve 16 allows the ozone gas to pass through the non-activated carbon flow path 13B. On the other hand, the flow path switching valve 16 allows the ozone gas to pass through the activated carbon flow path 13A when the ozone decomposing apparatus 42 decomposes the ozone gas (for example, at the end of the sterilization mode).

Thus, in the water treatment apparatus 1D according to the fourth modification of the first embodiment, in the sterilization mode, ozone gas can be passed through the non-activated carbon flow path 13B, and the ozone gas is decomposed by the ozone decomposing apparatus 42 (activated carbon). Without reducing the sterilization effect of ozone gas. For this reason, the secondary side flow path 12 and the discharge outlet 31 can be sterilized efficiently.

(1-4-5) Modification 5
Next, the configuration of a water treatment device 1E according to Modification 5 of the first embodiment will be described with reference to FIG.

The water treatment device 1E according to Modification 5 of the first embodiment further includes the following configuration in addition to the configuration of the water treatment device 1 according to the first embodiment. That is, as shown in FIG. 6, the water treatment apparatus 1E detects that the ozone decomposing apparatus 42 has decomposed ozone gas to a specified concentration (that is, a concentration that allows drinking even if ozone gas is contained in purified water). Sensor (fluid state detection device) 17 is provided. In addition, the sensor 17 should just be arrange | positioned in the secondary side flow path 12 or the circulation flow path 13.

Thus, in the water treatment apparatus 1E according to Modification 5 of the first embodiment, the sensor 17 can detect that the ozone gas has been decomposed to the specified concentration. For this reason, ozone gas that could not be decomposed by the ozone decomposing device 42 can be prevented from being released to the outside, and safety can be further improved.

(2) 2nd Embodiment The water treatment apparatus 2 which concerns on 2nd Embodiment is demonstrated referring FIG. In addition, the same code | symbol is attached | subjected to the same part as the water treatment apparatus 1 which concerns on 1st Embodiment mentioned above, and a different part is mainly demonstrated.

In the water treatment apparatus 1 according to the first embodiment, the circulation flow path 13 communicates with the outlet of the purification unit 10 in the secondary flow path. In contrast, in the water treatment device 2 according to the second embodiment, as shown in FIG. 7, the circulation flow path 13 communicates with the primary flow path 11 arranged on the upstream side of the purification unit 10.

In this case, the raw water from the raw water port 21 can be sealed at a location where the circulation flow channel 13 and the primary side flow channel 11 communicate with each other, and ozone gas can be sealed from the circulation flow channel 13 to the primary side flow channel 11 and the raw water port 21. There are provided a three-way valve 18 that can seal entry into and a sensor 19 that detects opening and closing of the three-way valve 18.

As described above, according to the water treatment device 2 according to the second embodiment, the circulation flow path 13 communicates with the primary flow path 11 so that the primary flow path 12 and the discharge port 31 are added to the primary flow path. The side flow path 11 can also be sterilized. For this reason, the water conduit (the primary side flow path 11 and the secondary side flow path 12) in the water treatment apparatus 2 can be kept more hygienic.

Further, by providing the three-way valve 18 at a location where the circulation flow path 13 and the primary flow path 11 communicate with each other, it is possible to prevent the raw water flowing from the raw water inlet 21 in the normal mode from entering the circulation flow path 13. At the same time, ozone gas can be prevented from being released from the raw water inlet 21 when the circulation flow path 13 and the primary flow path 11 communicate with each other in the sterilization mode.

(3) Third Embodiment A water treatment device 3 according to a third embodiment will be described with reference to FIG. In addition, the same code | symbol is attached | subjected to the same part as the water treatment apparatus 1 which concerns on 1st Embodiment mentioned above, and a different part is mainly demonstrated.

The water treatment device 1 according to the first embodiment is a device that purifies tap water. On the other hand, the water treatment apparatus 3 according to the third embodiment is an apparatus (so-called bottle water server) that does not include the purification unit 10 and stores drinking water.

(3-1) Configuration of Water Treatment Device 3 As shown in FIG. 8, the water treatment device 3 has a structure in which bottle water 110 for storing raw water such as drinking water is installed above. In addition to the faucet unit 30, the ozone generation unit 40, and the control unit 60 described in the first embodiment, the water treatment device 3 includes a water storage unit 70 in which bottled water 110 is installed, a cold water tank 80 having a cooling function, and heating. A hot water tank 90 having a function is further provided.

The water storage unit 70 is provided with a raw water shutter 71 (raw water port sealing device) that can prevent the bottled water 110 from being attached, that is, seals the raw water. The water storage unit 70 communicates with the cold water supply path 73 and the hot water supply path 74, and reaches a cold water tank 80 that cools the raw water by a cooling coil or the like, and a hot water tank 90 that heats the raw water by a heater or the like.

The cold water tank 80 incorporates a sensor (not shown) that can detect the water level (water amount). The cold water tank 80 communicates with the ozone decomposition device 42, the circulation pump 43, and the ozone generation device 41. The cold water tank 80 opens to the cold water discharge port 82 through the cold water discharge valve 81 and also opens to the cold water discharge port 84 through the cold water drain valve 83.

The hot water tank 90 includes a sensor (not shown) that can detect the water level (water amount). The hot water tank 90 opens to the hot water discharge port 92 via the hot water discharge valve 91 and also opens to the hot water discharge port 94 via the hot water drain valve 93.

The faucet part 30 provided with the cold water discharge port 82 and the hot water discharge port 92 has a shielding door 36 (connection device) that shields the cold water discharge port 82 and the hot water discharge port 92. The shielding door 36 is configured to allow the cold water discharge port 82 and the hot water discharge port 92 to communicate with each other. As a result, the circulation channel 13 (see FIG. 5) that can circulate again to the water storage unit 70 via the water storage unit 70, the cold water supply channel 73 (cold water tank 80), the shielding door 36, and the hot water supply channel 74 (hot water tank 90). 8 (b)) is formed. An operation panel (not shown) capable of selecting a normal mode (cold water or hot water) and a sterilization mode is built in the front surface of the faucet part 30 (the shielding door 36).

Moreover, the control part 60 is based on the signal from the operation panel, the signal from the sensor 72, the signal from the sensor incorporated in the cold water tank 80 and the hot water tank 90, and the raw | natural water shutter 71, the cold water discharge valve 81, hot water. The opening and closing of the discharge valve 91, the cold water drain valve 83, and the hot water drain valve 93 are controlled.

(3-2) Operation of the water treatment device 3 (3-2-1) Normal mode When the normal mode is selected by the operation panel of the faucet unit 30, the raw water shutter 71 is opened, and the water storage unit 70 has a bottle. The water 110 can be attached. At this time, in a state where the bottle water 110 is attached to the water storage unit 70, the raw water of the bottle water 110 is stored in the cold water tank 80 and the hot water tank 90. When cold water or hot water is selected by the operation panel in a state where the shielding door 36 is opened, the cold water drain valve 83 or the hot water drain valve 93 is opened, and the raw water is discharged from the cold water discharge port 82 or the hot water discharge port 92. (Cold water or hot water) is discharged.

(3-2-2) Sterilization Mode When the sterilization mode is selected by the operation panel of the faucet unit 30, the raw water shutter 71 is closed, and the bottled water 110 cannot be attached to the water storage unit 70. Note that the sterilization mode is not entered when the bottled water 110 is attached to the water storage unit 70 or when the shielding door 36 is opened. Further, after the cold water drain valve 83 and the hot water drain valve 93 are opened to discharge unnecessary or harmful water in the circulation channel 13, the cold water tank 80, and the hot water tank 90, the cold water drain valve 83 and the hot water drain valve 93 are discharged. Closes.

Then, the cold water discharge port 82 and the hot water discharge port 92 are communicated with each other by the shielding door 36 to form the circulation channel 13 (see FIG. 8B), and the ozone generator 41 and the circulation pump 43 are operated. . Thereby, ozone gas circulates through the circulation channel 13, and the cold water discharge port 82, the hot water discharge port 92, and the circulation channel 13 are sterilized by ozone gas. Thereafter, when the ozone generator 41 is stopped, the sterilization process is finished, and the ozone gas in the circulation flow path 13 is decomposed by the ozone decomposition device 42.

(3-3) Actions / Effects As described above, the water treatment device 3 according to the third embodiment has the function of the water treatment device 1 according to the first embodiment even when the purification unit 10 is not provided. Similar to the action and effect, the cold water discharge port 82 and the hot water discharge port 92 can be reliably sterilized while keeping the water conduit hygienic.

(4) Other Embodiments As described above, the contents of the present invention have been disclosed through the respective embodiments of the present invention. However, it is understood that the description and drawings constituting a part of this disclosure limit the present invention. should not do. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

For example, each embodiment of the present invention can be modified as follows. Specifically, the ozone generation unit 40 (ozone generation device 41) has been described as generating ozone gas. However, it is not limited to this, For example, you may produce | generate the gas which has sterilizing components, such as ethylene oxide and formaldehyde. Moreover, the ozone production | generation apparatus 41 may produce | generate not only gases, such as ozone gas, but the water containing ozone, the water containing hypochlorous acid, etc.

Further, the ozone generator 41 may be constituted by a water electrolyzer that generates free chlorine, hydrogen peroxide, ozone, or the like. For example, examples of the water electrolysis device include titanium, platinum, iridium, carbon, and a mixture thereof, but any type can be used as long as it can generate hypochlorous acid, hydrogen peroxide, and ozone.

The circulation pump 43 has been described as circulating ozone gas from the one end 13a of the circulation flow path 13 toward the other end 13b. However, the present invention is not limited to this, and the circulation pump 43 is not limited to this. Ozone gas may be circulated toward 13a. Even in this case, it is preferable to arrange the circulation pump 43, the ozone generator 41, and the ozone decomposition device 42 in this order from upstream to downstream.

Further, the water treatment device 2 according to the second embodiment and the water treatment device 3 according to the third embodiment can apply all the configurations of the water treatment devices 1A to 1E according to the first to fifth modifications of the first embodiment. However, it is needless to say that the present invention is not limited to this.

Thus, it goes without saying that the present invention includes various embodiments that are not described herein. Therefore, the technical scope of the present invention is determined only by the invention specifying matters according to the scope of claims reasonable from the above description.

Claims

A water treatment device,
A conduit for passing raw water or purified water; and
A faucet part provided with a discharge port for discharging the raw water or the purified water that has passed through the water conduit,
A fluid generating unit for generating a fluid containing a sterilizing component;
A circulation channel for branching from the water conduit and allowing the fluid to pass therethrough;
A connection device for connecting the discharge port and the circulation flow path;
The fluid generation unit circulates the fluid in the water conduit and the circulation channel through the connection device.
The water treatment device according to claim 1,
The water conduit is provided with a raw water supply unit for supplying the raw water,
The raw water supply unit includes a raw water inlet for flowing the raw water and a raw water inlet sealing device for blocking the raw water inlet.
The water treatment device according to claim 1,
A sealing state detection device for detecting information in which the discharge port is blocked by the connection device;
The water treatment device, wherein the fluid generation unit generates the fluid when the sealing state detection device detects the information.
The water treatment device according to claim 1,
A mode switching unit for switching between a normal mode in which the raw water or the purified water is discharged from the discharge port and a sterilization mode in which the fluid is circulated in the water conduit and the circulation channel;
The said connection apparatus connects the said discharge outlet and the said circulation flow path, when the sterilization mode is selected by the said mode switching part, The water treatment apparatus characterized by the above-mentioned.
The water treatment device according to claim 1,
The fluid generator is
A fluid generator for generating the fluid;
A fluid decomposing apparatus for decomposing the fluid generated by the fluid generating apparatus,
The fluid decomposition apparatus is made of activated carbon,
The circulation channel branches into an activated carbon channel that passes through the fluid decomposing device and a non-activated carbon channel that communicates with the activated carbon channel on the downstream side of the fluid decomposing device,
A water path switching mechanism capable of branching the fluid to either one of the activated carbon channel or the non-activated carbon channel is provided at a branch point of the activated carbon channel and the non-activated carbon channel. Processing equipment.
The water treatment device according to claim 1,
A water treatment apparatus, further comprising a fluid state detection device for detecting that the fluid is decomposed to a specified concentration by the fluid generation unit.
The water treatment device according to claim 1,
Further comprising a purification unit for producing the purified water by purifying the raw water,
The water treatment apparatus, wherein the circulation channel communicates with an outlet of the purification unit.
The water treatment device according to claim 1,
Further comprising a purification unit for producing the purified water by purifying the raw water,
The water treatment apparatus according to claim 1, wherein the circulation flow path communicates with a primary flow path arranged on the upstream side of the purification unit.