WO2012043135A1

WO2012043135A1 - Water purifier

Info

Publication number: WO2012043135A1
Application number: PCT/JP2011/069989
Authority: WO
Inventors: 盛司馬場
Original assignee: シャープ株式会社
Priority date: 2010-09-29
Filing date: 2011-09-02
Publication date: 2012-04-05
Also published as: JP4897078B1; JP2012071260A

Abstract

Provided is a water purifier capable of supplying non-potable and potable waters to users, with which a user mistaking and using non-potable water for potable water is prevented. The water purifier (100) is provided with a flow channel (110), flow rate sensor (121), flow channel switch (20), flow channel position sensor (32), ozone generator (40), switch (132), operation panel (31) and control unit (131). When the control unit (131) determines that water is flowing through the main water channel (101) on the basis of detection by the flow rate sensor (121), determines that water flow has been switched from the main water channel (101) to the ozonated water flow channel (102) by the flow channel switch (20) on the basis of detection by the flow channel position sensor (32), and determines that the switch (132) has been switched ON on the basis of an operation of the operation panel (31), the ozone generator (40) generates ozone.

Description

Water purifier

This invention relates generally to a water purifier, and more particularly to a water purifier capable of supplying non-potable water and potable water.

Regarding water purifiers such as electrolyzed water conditioners, an electrolyzed water conditioner described in Japanese Utility Model Laid-Open No. 5-22093 (hereinafter referred to as Patent Document 1) is known. The electrolysis water conditioner described in Patent Document 1 includes a plurality of flow paths and a flow path switching device for switching the flow paths. The flow path switching device is attached to the flow path.

In the electrolyzed water conditioner described in Patent Document 1, the electrical operation of the electrolyzed water conditioner is switched in conjunction with the switching operation of the flow path switching device. Thereby, the operativity of the electrolysis water regulating apparatus described in patent document 1 is improved.

Japanese Utility Model Publication No. 5-22093

In the electrolysis water conditioner described in Patent Document 1, the flow path switching device is switched by operating the rotary handle by the user. The rotary handle is disposed outside the cylindrical casing.

In the electrolyzed water regulating apparatus described in Patent Document 1, for example, when using the kind of water desired by the user, the rotary handle is erroneously operated at a position where another kind of water is supplied. Sometimes, a different type of water from the type desired by the user is supplied from the electrolyzer. That is, in the electrolysis water regulator described in Patent Document 1, when the water supplied from the electrolysis water regulator is different from the type of water desired by the user, The user may use the supplied water as it is.

For example, it is necessary to avoid a situation in which the user mistakes water that is not preferable as drinking water and drinking water, and the user drinks water that is not preferable as drinking water. An example of a class of water that is not preferred as potable water is water that contains ozone in particular. Ozone-containing water has a sterilizing or deodorizing action and is used for washing food or tableware or washing hands. Among the water containing ozone, those having a high ozone concentration in the water have a higher effect of sterilization or deodorization. In Japan, the ozone concentration in water is not particularly defined, but the allowable concentration as the ozone gas concentration in the atmosphere is defined as 0.1 ppm. Therefore, it is necessary to adjust the concentration of ozone water so that the concentration of ozone gas diffused into the atmosphere when ozone water is used does not exceed 0.1 ppm. However, when ozone is sufficiently dissolved in water, the amount of ozone diffused in the atmosphere is reduced. Therefore, even if the ozone gas concentration in the atmosphere is 0.1 ppm or less, the ozone concentration in water becomes high, Is no longer suitable.

Accordingly, an object of the present invention is a water purifier capable of supplying non-potable water and potable water to a user, and prevents the user from misidentifying non-potable water as potable water. Is to provide a water purifier.

The water purifier according to the present invention includes a flow path, a flow rate sensor, a flow path switching unit, a flow path position sensor, a mixer, an operation unit, a switch, and a control unit. The channel has at least a main water channel, a non-drinking water side channel, and a drinking water side channel. Raw water circulates in the main channel. The non-potable water side channel and the drinking water side channel are branched from the main water channel. Non-potable water circulates in the non-potable water side channel. Drinking water circulates in the drinking water side channel. The flow sensor is disposed in the flow path and detects the flow of water in the flow path. The flow path switching unit switches the flow of water in the flow path so that water flows from the main water flow path to at least one of the non-potable water side flow path and the drinking water side flow path. The flow path position sensor detects whether the flow path switching unit switches the flow of water flowing through the main water channel to the non-potable water side flow path or the drinking water side flow path. The mixer is connected to the non-potable water channel. The mixer also mixes non-drinking substances with water flowing through the non-drinking water side flow path. The operation unit is operated to switch between an ON state in which the mixer can mix a non-drinkable substance with water flowing through the non-potable water side flow path and an OFF state in which the mixer cannot mix the non-drinkable substance. The switch is connected to the operation unit, and is switched between an ON state and an OFF state based on the operation of the operation unit. The control unit is connected to the flow rate sensor, the flow path position sensor, the switch, and the mixer.

In the water purifier according to the present invention, when the control unit determines that water is flowing in the flow path based on the detection of the flow sensor, the non-potable water is discharged from the main water flow path based on the detection of the flow position sensor. When it is determined that the flow path switching unit switches the flow of water to the side flow path, and when it is determined that the switch is switched to the ON state based on the operation of the operation unit, the mixer Mixes non-drinkable substances with the water flowing through the non-potable water side channel.

According to the present invention, when the mixer mixes the non-drinking substance with the water flowing through the non-potable water side flow path, the water flows through the flow path and the non-potable water side flow from the main water flow path. At least three conditions are imposed on the path: the flow path switching unit switching the flow of water and the switch being switched to the ON state. That is, when these at least three conditions are satisfied, the mixer can mix the non-drinking substance with the water flowing through the non-drinking water side flow path. Thus, a non-drinking substance is mixed with the water which distribute | circulates a non-drinking water side flow path by satisfy | filling three conditions. Thereby, the water purifier according to this invention can supply water containing a non-drinkable substance.

On the other hand, when the control unit determines that water is not flowing through the channel, the channel switching unit switches the flow of water to the channel except the non-potable water side channel from the main water channel. When determining that the switch is switched to the OFF state, the mixer does not mix the non-drinking substance with the water flowing through the non-drinking water side flow path.

As described above, in the water purifier according to the present invention, when the water is not circulating in the flow path, the user operates the operation unit, or the flow of water is switched to the flow path intended by the user. If the user does not, the user is prevented from operating the operation unit by mistake. Therefore, in the water purifier according to the present invention, when the water supplied from the water purifier is different from the kind of water desired by the user, the user uses the water supplied from the water purifier as it is. Use is prevented. That is, in the water purifier according to the present invention, the user is prevented from misidentifying and using the water containing the non-drinking substance as the non-drinking water as the drinking water.

In the water purifier according to the present invention, when the control unit determines that the flow of water in the flow path is stopped, the flow of water into the flow path excluding the non-potable water side flow path from the main water flow path. When it is determined that the flow path switching unit is switching, or when it is determined that the switch is switched to the OFF state, the mixer does not absorb the non-potable substance in the water flowing through the non-potable water side flow path. It is preferable to stop mixing.

This configuration allows the mixer to stop mixing non-drinkable substances once one of the three conditions once satisfied is no longer met. Therefore, in the water purifier according to the present invention, when the water supplied from the water purifier is different from the kind of water desired by the user, the user uses the water supplied from the water purifier as it is. Use is prevented.

The water purifier according to the present invention preferably includes a filter disposed in the drinking water side flow path and a connection path disposed between the non-potable water side flow path and the drinking water side flow path. . Moreover, it is preferable that the water purifier according to this invention wash | cleans a filter, when the water which mixed the non-drinking substance with the water which flows through a non-potable water side flow path passes a filter through a connection path.

Thus, the filter can be effectively cleaned by mixing the water that flows through the non-potable water side flow passage with a substance useful for cleaning the filter. Further, as described above, in the water purifier according to the present invention, when the water supplied from the water purifier is different from the kind of water desired by the user, the water supplied from the water purifier. The user is prevented from using it as it is. In other words, the water utilized in cleaning the filter is a type of water that is not intended for use by the user. Thus, in the water purifier according to the present invention, the user is prevented from using waste water discharged from the water purifier when the filter is washed.

In the water purifier according to the present invention, the non-drinkable substance is preferably ozone, and the mixer is preferably an ozone generator that generates ozone.

Thus, by mixing ozone with the water flowing through the non-potable water side flow path, the user can effectively use the water containing ozone appropriately as appropriate. Moreover, the filter can be effectively washed with water mixed with ozone.

As described above, according to the present invention, a water purifier capable of supplying non-potable water and potable water to a user, and the user misidentifies non-potable water as potable water and uses it. Can be provided.

It is a block diagram showing the whole water purifier concerning a 1st embodiment of the present invention. It is a figure which shows typically the operation panel of the water purifier which concerns on 1st Embodiment of this invention. It is a flowchart which shows the control process of the water purifier which concerns on 1st Embodiment of this invention in order. It is a flowchart which shows the control process of the water purifier which concerns on 1st Embodiment of this invention in order. It is a flowchart which shows the control process of the water purifier which concerns on 1st Embodiment of this invention in order. It is a block diagram which shows the whole water purifier which concerns on 2nd Embodiment of this invention. It is a block diagram which shows the whole water purifier which concerns on 3rd Embodiment of this invention. It is a figure which shows typically the operation panel of the water purifier which concerns on 3rd Embodiment of this invention. It is a flowchart which shows the control processing of the control part of the water purifier which concerns on 3rd Embodiment of this invention in order.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiment,

A water purifier capable of supplying water containing ozone as non-potable water (hereinafter referred to as ozone water) is described. However, the example of non-potable water is not limited to ozone water, and the example of a non-drinkable substance is not limited to ozone. Non-drinkable substances contained in non-potable water are actively mixed into the water supplied by the water purifier, so that the user uses the water mixed with the substance even though it is non-potable water. In some cases, it is a useful substance. The aspect of the non-drinkable substance is not particularly limited, and is a gas, liquid, or solid. For example, the water purifier may include a detergent mixer as a mixer for mixing the detergent, and the water purifier may supply water mixed with the detergent in the detergent mixer.

Furthermore, as another example of non-potable water, the non-potable water may be silver ion water. Silver ion water has a bactericidal or antibacterial action. The user of the water purifier can obtain a bactericidal or antibacterial effect when washing kitchen utensils with silver ion water. However, in the EPA standards in the United States, a standard of 0.1 mg / L or less is set for the silver ion concentration of drinking water. As for the bactericidal or antibacterial effect, the effect can be obtained even when the silver ion concentration is 0.1 mg / L or less. The higher the concentration of silver ion water, the higher the bactericidal or antibacterial effect. Therefore, when washing a thing with many impurities, such as an organic substance, high concentration silver ion water is required. In a water purifier used when washing kitchen utensils, for example, about 0.5 mg / L of silver ion water may be used as non-potable water. Furthermore, in water purifiers used for washing kitchen utensils, etc., acidic water having a pH of 2 to 3 obtained by electrolyzing saline (for example, hypochlorous acid water having a concentration of 40-60 ppm) is used. May be.

(First embodiment)
As shown in FIG. 1, the water purifier 100 according to the first embodiment includes a flow path 110, a pre-filter 111, activated carbon 112, a flow sensor 121, and a control unit 131. The control unit 131 is a part of the microcomputer.

The flow path 110 is for circulating water. The channel 110 includes a main water channel 101, a drinking water side channel 103, and an ozone water side channel 102. The main water channel 101 is for circulating raw water. Raw water such as tap water, well water, or river water is supplied to the main water passage 101 from the outside of the water purifier 100.

The ozone water side channel 102 and the drinking water side channel 103 as non-potable water side channels are branched from the main water channel 101. A flow path switching valve 92 is disposed between the activated carbon 112 and the hollow fiber filter 114 in the flow path 110. The flow path switching valve 92 is composed of, for example, an electromagnetic three-way valve. The flow path switching lever 21 is connected to the flow path switching valve 92. The flow path switching lever 21 is operated by the user of the water purifier 100, and the flow path switching valve 92 is operated based on the operation of the flow path switching lever 21. When the flow path switching valve 92 operates, the flow of water in the flow path 110 flows so that water flows from the main water flow path 101 to either the drinking water side flow path 103 or the ozone water side flow path 102. Can be switched.

In the water purifier 100, the flow path switching unit 20 is configured by at least the flow path switching lever 21 and the flow path switching valve 92. Note that the flow path switching unit 20 may use a push-type switch for switching opening and closing of the flow path switching valve 92 instead of the flow path switching lever 21.

The pre-filter 111, the activated carbon 112, and the flow sensor 121 are disposed in the main water passage 101. The pre-filter 111 is configured by a relatively coarse nonwoven fabric. The relatively large impurities contained in the raw water are removed when the raw water passes through the pre-filter 111, thereby filtering the raw water. The activated carbon 112 adsorbs organic substances in the water and removes them from the water. When the water that has passed through the activated carbon 112 passes through the hollow fiber filter 114, fine impurities contained in the water adhere to the hollow fiber filter 114. In addition, the hollow fiber filter 114 may be a microfilter configured by a relatively fine nonwoven fabric.

A check valve 91 is arranged on the upstream side of the flow sensor 121 with respect to the flow direction of the water flowing through the flow path 110. The raw water is purified by passing through the prefilter 111, the activated carbon 112, and the hollow fiber filter 114 in the flow path 110 in this order. The purified water is supplied to the outside of the water purifier 100 as drinking water.

The flow sensor 121 measures the instantaneous flow rate of water passing through the prefilter 111. In addition, the flow sensor 121 transmits a signal based on the measured instantaneous flow rate of water to the control unit 131. The flow sensor 121 may be disposed in the ozone water side flow path 102 in the flow path 110. That is, the flow sensor 121 may measure the instantaneous flow rate of water flowing in the ozone water side flow path 102 and transmit a signal based on the measured instantaneous flow rate of water to the control unit 131.

The water purifier 100 includes a flow path position sensor 32. The flow path position sensor 32 detects whether the flow path switching unit 20 switches the flow of water flowing through the main water flow path 101 to the ozone water side flow path 102 or the drinking water side flow path 103. In the water purifier 100, for example, by detecting the state or position of the flow path switching lever 21, the flow of water flowing through the main water flow path 101 in either the ozone water side flow path 102 or the drinking water side flow path 103. Detect whether is switched. The flow path position sensor 32 may be connected to the flow path switching valve 92 to detect the state or position of the flow path switching valve 92.

The water purifier 100 includes an ozone generator 40 as a mixer. The ozone generator 40 generates ozone. The ozone generator 40 is connected to the ozone water side flow path 102. A check valve 93 is disposed between the ozone generator 40 and the ozone water side flow path 102. The check valve 93 allows the flow of ozone introduced from the ozone generator 40 into the ozone water side flow path 102. However, the mixer is not limited as long as it is connected to the non-potable water side flow path and mixes the non-drinkable substance with the water flowing through the non-potable water side flow path.

The water purifier 100 includes an operation panel 31. The operation panel 31 has buttons operated by the user. As shown in FIG. 2, the operation panel 31 is provided with an ozone generation operation unit 41 and a filter cleaning operation unit 51.

Further, as shown in FIG. 2, a switch 132 and a switch 133 are connected to the ozone generation operation unit 41 and the filter cleaning operation unit 51, respectively. The switch 132 and the switch 133 switch the state of the water purifier 100 between an ON state in which the ozone generator 40 can generate ozone and an OFF state in which the ozone generator 40 cannot generate ozone. The ozone generation operation unit 41 is for operating the switch 132 ON and OFF. The filter cleaning operation unit 51 is for operating the switch 133 ON and OFF.

The ozone generation operation unit 41 and the filter cleaning operation unit 51 are, for example, push buttons. However, the ozone generation operation unit 41 and the filter cleaning operation unit 51 are not limited to the push type, and may be a slide type.

As will be described later, the water purifier 100 supplies water containing ozone based on the operation of the ozone generation operation unit 41 of the operation panel 31 by the user. Further, the cleaning of the hollow fiber filter 114 is started based on the operation of the filter cleaning operation unit 51 by the user.

As shown in FIG. 1, the control unit 131 is connected to a flow rate sensor 121, a flow path position sensor 32, a switch 132, a switch 133, and an operation panel 31. The control unit 131 determines whether water is flowing through the flow path 110 based on the flow of water detected by the flow sensor 121. Further, the control unit 131 determines whether the flow path switching unit 20 switches the flow of water from the main water flow path 101 to the ozone water side flow path 102 based on the operation of the flow path switching unit 20 detected by the flow path position sensor 32. Judge whether or not. Furthermore, the control unit 131 determines whether the switch 132 or the switch 133 is turned on based on the operation of the ozone generation operation unit 41.

Although not shown, the control unit 131 controls the opening and closing of the

electromagnetic valves

95, 96, 97, and 98. As shown in FIG. 1, the flow path switching valve 92 may be electronically controlled by the control unit 131 based on the operation of the operation panel 31 by the user. In this case, for example, the operation panel 31 switches the flow of water flowing through the main water passage 101 to either the ozone water side passage 102 or the drinking water side passage 103 to the passage switching valve 92. A button or the like may be arranged. However, the buttons and the like are not limited to being arranged on the operation panel 31.

In the drinking water side flow path 103, a check valve 94 is disposed between the flow path switching valve 92 and the hollow fiber filter 114. The check valve 94 allows the flow of water from the flow path switching valve 92 toward the hollow fiber filter 114 in the drinking water side flow path 103.

The water purifier 100 includes a drainage channel 105. As will be described later, the drainage channel 105 is for discharging water that has passed through the hollow fiber filter 114. An electromagnetic valve 96 is disposed in the drainage channel 105. The solenoid valve 96 is for switching between drainage for draining the water that has washed the hollow fiber filter 114 to the outside of the water purifier 100 and drainage stop through the drainage channel 105.

A solenoid valve 98 is arranged downstream of the hollow fiber filter 114 in the drinking water side flow path 103. The electromagnetic valve 98 is for switching between supply to the outside of the water purifier 100 that has passed through the hollow fiber filter 114 and supply stop.

The water purifier 100 includes a connection path 104 disposed between the ozone water side flow path 102 and the drinking water side flow path 103. The connection path 104 is connected to the ozone water side flow path 102 at the connection position 142. Further, the connection path 104 is connected to the drinking water side flow path 103 at the connection position 141. Thereby, the ozone water side flow path 102 and the drinking water side flow path 103 are connected to each other via the connection path 104. The connection position 141 is a position downstream of the position where the ozone generator 40 is disposed in the ozone water side flow path 102. The connection position 142 is a position between the check valve 94 and the hollow fiber filter 114 in the drinking water side flow path 103.

A solenoid valve 95 is disposed in the connection path 104. The electromagnetic valve 95 is for switching between supply and stop of water supply from the drinking water side flow path 103 to the ozone water side flow path 102 or from the ozone water side flow path 102 to the drinking water side flow path 103. Is.

An electromagnetic valve 97 is disposed in the ozone water side flow path 102. The electromagnetic valve 97 is for switching between supply and stop of supply of water containing ozone to the outside of the water purifier 100. The electromagnetic valve 97 is disposed on the downstream side of the connection position 142 in the ozone water side flow path 102.

The flow of water in the flow path 110 of the water purifier 100 configured as described above will be described. When purified water is supplied to the outside of the water purifier 100, the electromagnetic valve 95 and the electromagnetic valve 96 are closed, and the electromagnetic valve 97 and the electromagnetic valve 98 are opened.

When the water purifier 100 supplies clean water, the flow path switching valve 92 switches the flow of water in the flow path 110 so that water flows from the main water flow path 101 to the drinking water side flow path 103. The raw water that has passed through the flow sensor 121, the pre-filter 111, and the activated carbon 112 disposed in the main water passage 101 flows into the drinking water side passage 103 through the passage switching valve 92. The water that has flowed into the drinking water side flow path 103 is purified by passing through the hollow fiber filter 114, and purified water is supplied to the outside of the water purifier 100 via the electromagnetic valve 98.

When water containing ozone is supplied, the flow path switching valve 92 switches the flow of water in the flow path 110 so that water flows from the main water flow path 101 to the ozone water side flow path 102. The raw water that has passed through the flow sensor 121, the prefilter 111, and the activated carbon 112 flows into the ozone water side flow path 102 via the flow path switching valve 92. When the ozone generator 40 is generating ozone, the water that has flowed into the ozone water side channel 102 is mixed with ozone. Thereby, ozone is mixed with the water flowing through the ozone water side channel 102. The ozone water is supplied to the outside of the water purifier 100 through the electromagnetic valve 97.

In addition, the solenoid valve 97 and the solenoid valve 98 are opened when the water purifier 100 is not energized.

Hereinafter, control when the water purifier 100 supplies ozone water will be described. As shown in FIG. 3, in step S11, the water purifier 100 is in a standby state. In the standby state of the water purifier 100, the electromagnetic valve 95 and the electromagnetic valve 96 are closed, and the electromagnetic valve 97 and the electromagnetic valve 98 are opened (see FIG. 1). The standby state of the water purifier 100 is a state of waiting for the water purifier 100 to supply ozone water and for the water purifier 100 to wash the hollow fiber filter 114. In the standby state of the water purifier 100, the ozone generator 40 is in an OFF state in which ozone cannot be generated.

Subsequently, in step S12, raw water is supplied from the outside of the water purifier 100. When raw water is supplied to the water purifier 100, the raw water circulates through the main water passage 101 where the flow sensor 121 is disposed. In step S <b> 13, it is determined whether or not the flow sensor 121 detects the flow of water flowing through the flow path 110. In the water purifier 100, since the flow sensor 121 is disposed in the main water passage 101, whether or not the flow sensor 121 detects the flow of water flowing through the main water passage 101 is determined in step S13.

In step S13, when the flow sensor 121 detects the flow of water flowing through the flow path 110, the process proceeds to step S14. In step S13, when the flow sensor 121 does not detect the flow of water flowing through the flow path 110, the process returns to step S11 and the standby state is continued.

In step S14, it is determined whether or not the flow of water is switched so that water flows from the main water passage 101 to the ozone water side passage 102 by the operation of the passage switching unit 20. The operation of the flow path switching unit 20 is detected by the flow path position sensor 32. If it is determined in step S14 that the flow path switching unit 20 is switching the flow of water from the main water passage 101 to the ozone water side flow path 102, the process proceeds to step S15. In step S <b> 14, it is determined that the water flow is not switched from the main water passage 101 to the ozone water side channel 102, and the water flow is switched from the main water channel 101 to the drinking water side channel 103. If it is, the process returns to step S11 and the standby state is continued.

In step S15, the ozone water lamp 42 and the filter cleaning lamp 52 which have been turned off start to blink. As shown in FIG. 2, the ozone water lamp 42 and the filter cleaning lamp 52 are disposed on the operation panel 31.

However, the operation panel 31 may not include the ozone water lamp 42 and the filter cleaning lamp 52. In this case, in step S15, the ozone generation operation unit 41 and the filter cleaning operation unit 51 may start blinking. In step S15, the ozone generation operation unit 41 and the ozone water lamp 42, and the filter cleaning operation unit 51 and the filter cleaning lamp 52 may blink. For example, when the ozone water lamp 42 and the filter cleaning lamp 52 start blinking, it is possible to supply ozone water or start cleaning the hollow fiber filter 114. The person is informed.

Subsequently, in step S <b> 16, it is determined whether or not the switch 132 is turned on by operating the ozone generation operation unit 41 by the user. If it is determined in step S16 that the switch 132 is turned on by operating the ozone generation operation unit 41 by the user, the process proceeds to step S17 (see FIG. 4). If it is determined in step S16 that the switch 132 has not been turned ON, the process proceeds to step S24.

In step S17, the operation of the ozone generator 40 is started, whereby the ozone generator 40 generates ozone. The generated ozone is mixed with the water flowing through the ozone water side flow path 102 via the check valve 93.

In step S18, the ozone water lamp 42 is switched from blinking to lighting. However, when the ozone water lamp 42 is not disposed on the operation panel 31, the ozone generation operation unit 41 may be switched from blinking to lighting. Furthermore, the ozone generation operation unit 41 and the ozone water lamp 42 may be switched from blinking to lighting.

In step S19, the filter cleaning lamp 52 is switched from blinking to extinguishing. Note that step S17, step S18, and step S19 may be parallel steps.

Subsequently, in step S20, ozone water supply is controlled in the water purifier 100. In the control of the ozone water supply, for example, the ozone generator 40 generates ozone, the ozone water lamp 42 is turned on, the filter cleaning lamp 52 is turned off, the

electromagnetic valves

95 and 96 are closed, and the electromagnetic valves 97, The controller 131 controls the ozone generator 40, the operation panel 31 and the like so that 98 is opened. Moreover, when the water purifier 100 is provided with a pump (not shown), the control unit 131 may control the pump so that water flows through the ozone water side channel 102.

Subsequently, in step S21, it is determined whether or not the switch 132 is turned OFF by operating the ozone generation operation unit 41. If it is determined in step S21 that the switch 132 is turned OFF, the process proceeds to step S22. If it is determined in step S21 that the switch 132 has not been turned OFF, the process returns to step S20.

In step S22, the operation of the ozone generator 40 is stopped, whereby the ozone generator 40 stops generating ozone. In step S23, the filter cleaning lamp 52 that has been turned off starts blinking, and the ozone water lamp 42 that has been lit starts blinking. When the ozone water lamp 42 and the filter cleaning lamp 52 start blinking again, it is possible to supply ozone water again, or it is possible to start cleaning the hollow fiber filter 114. The user is notified. Subsequent to step S23, step S16 is executed again (see FIG. 3). Note that step S13 may be executed following step S23.

Subsequently, control when the hollow fiber filter 114 is washed will be described below. As shown in FIG. 3, in step S <b> 24, it is determined whether or not the switch 133 is turned on by operating the filter cleaning operation unit 51 by the user. In the water purifier 100, ozone water is used when the hollow fiber filter 114 is washed.

In step S24, when it is determined that the switch 133 is turned ON by operating the filter cleaning operation unit 51, the process proceeds to step S25 (see FIG. 5). If it is determined in step S24 that the switch 133 is not turned ON, the process returns to step S16.

In step S25, the solenoid valve 95 and the solenoid valve 96 are opened. In step S26, the solenoid valve 97 and the solenoid valve 98 are closed. In step S27, the operation of the ozone generator 40 is started.

In step S28, the filter cleaning lamp 52 is switched from blinking to lighting. However, when the filter cleaning lamp 52 is not arranged on the operation panel 31, the filter cleaning operation unit 51 may be switched from blinking to lighting. Further, the filter cleaning operation unit 51 and the filter cleaning lamp 52 may be switched from blinking to lighting.

In step S29, the ozone water lamp 42 is switched from blinking to extinguishing. Note that steps S25 to S29 may be parallel steps.

Subsequently, in step S30, control for cleaning the hollow fiber filter 114 in the water purifier 100 is executed. In this control, for example, the ozone generator 40 generates ozone, the ozone water lamp 42 is turned off, the filter cleaning lamp 52 is turned on, the

electromagnetic valves

95 and 96 are opened, and the

electromagnetic valves

97 and 98 are closed. As described above, the controller 131 controls the ozone generator 40, the operation panel 31, and the like. When the water purifier 100 includes a pump (not shown), the control unit 131 may control the pump so that water flows from the ozone water side channel 102 toward the hollow fiber filter 114.

Subsequently, in step S31, it is determined whether or not the switch 132 is turned OFF by operating the filter cleaning operation unit 51. If it is determined in step S31 that the switch 132 is turned OFF, the process proceeds to step S32. If it is determined in step S31 that the switch 132 has not been turned OFF, the process returns to step S30.

In step S32, the operation of the ozone generator 40 is stopped, whereby the ozone generator 40 stops generating ozone. In step S33, the solenoid valve 95 and the solenoid valve 96 are closed. In step S34, the solenoid valve 97 and the solenoid valve 98 are opened.

In step S35, the ozone water lamp 42 that has been turned off starts blinking, and the filter cleaning lamp 52 that has been turned on starts blinking. When the ozone water lamp 42 and the filter cleaning lamp 52 start blinking again, it is possible to supply ozone water, or it is possible to start cleaning the hollow fiber filter 114 again. The user is notified. Subsequent to step S35, step S16 is executed again (see FIG. 3). Note that step S13 may be executed following step S35.

In addition, when the ozone water lamp 42 displays the switching state of the switch 132, the ozone water lamp 42 may be lit or blinking in a different color depending on the switching state of the switch 132. Further, when the filter cleaning lamp 52 displays the switching state of the switch 133, the filter cleaning lamp 52 may be lit or blinking in a different color depending on the switching state of the switch 133.

As described above, the control unit 131 determines that water is flowing through the flow channel 110, and the flow channel switching unit 20 switches the flow of water from the main water flow channel 101 to the ozone water side flow channel 102. When it is determined that the switch 132 is turned on based on the operation of the ozone generation operation unit 41, the ozone generator 40 generates ozone.

In addition, the control unit 131 determines that the flow of water in the flow channel 110 is stopped, and the flow channel switching unit 20 switches the flow of water from the main water flow channel 101 to the drinking water side flow channel 103. If it is determined that the switch 132 is turned OFF, the ozone generator 40 stops generating ozone.

Hereinafter, the flow of water in the flow path 110 when the hollow fiber filter 114 is washed in the water purifier 100 will be described.

When the water purifier 100 cleans the hollow fiber filter 114, the flow path switching valve 92 switches the flow of water so that water flows from the main water flow path 101 to the ozone water side flow path 102. The raw water that has passed through the flow sensor 121, the prefilter 111, and the activated carbon 112 flows into the ozone water side flow path 102 via the flow path switching valve 92. Ozone generated by the ozone generator 40 is mixed in the water flowing into the ozone water side flow path 102. When the water purifier 100 cleans the hollow fiber filter 114, the electromagnetic valve 95 is opened. Therefore, ozone water is supplied to the hollow fiber filter 114 via the connection path 104.

When the water purifier 100 cleans the hollow fiber filter 114, the electromagnetic valve 96 is opened. Thereby, the ozone water that has passed through the hollow fiber filter 114 is discharged outside the water purifier 100 through the drainage channel 105.

In addition, when the water purifier 100 cleans the hollow fiber filter 114, the flow path switching valve 92 has a flow path in addition to the flow of water from the ozone water side flow path 102 to the hollow fiber filter 114 via the connection path 104. The operation may be performed so that water flows from the switching valve 92 toward the hollow fiber filter 114.

As described above, the water purifier 100 includes the flow channel 110, the flow sensor 121, the flow channel switching unit 20, the flow channel position sensor 32, the ozone generator 40, the switch 132, the switch 133, the ozone generation operation unit 41, and the filter cleaning operation. A unit 51 and a control unit 131 are provided. The flow path 110 includes a main water flow path 101, an ozone water side flow path 102, and a drinking water side flow path 103. Raw water flows through the main waterway 101. The ozone water side channel 102 and the drinking water side channel 103 are branched from the main water channel 101. In the ozone water side channel 102, water containing ozone circulates. Drinking water circulates in the drinking water side channel 103. The flow sensor 121 is disposed in the main water passage 101 and detects the flow of water in the main water passage 101. The flow path switching unit 20 switches the flow of water in the flow path 110 so that water flows from the main water flow path 101 to either the ozone water side flow path 102 or the drinking water side flow path 103. The flow path position sensor 32 detects whether the flow path switching unit 20 switches the flow of water flowing through the main water flow path 101 to the ozone water side flow path 102 or the drinking water side flow path 103. The ozone generator 40 that generates ozone is connected to the ozone water side flow path 102. The ozone generation operation unit 41 and the filter cleaning operation unit 51 are operated to switch between an ON state in which the ozone generator 40 can mix ozone with water flowing through the ozone water side flow path 102 and an OFF state in which the ozone generator 40 cannot. Is done. The switch 132 is connected to the ozone generation operation unit 41 and is switched between an ON state and an OFF state based on the operation of the ozone generation operation unit 41. On the other hand, the switch 133 is connected to the filter cleaning operation unit 51 and is switched between the ON state and the OFF state based on the operation of the filter cleaning operation unit 51. The control unit 131 is connected to the flow rate sensor 121, the flow path position sensor 32, the switch 132, the switch 133, and the ozone generator 40.

In the water purifier 100, when the control unit 131 determines that water is flowing through the main water passage 101 based on the detection of the flow sensor 121, the control unit 131 starts from the main water passage 101 based on the detection of the flow path position sensor 32. When determining that the flow path switching unit 20 is switching the flow of water to the ozone water side flow path 102, and determining that the switch 132 is switched ON based on the operation of the ozone generation operation unit 41 When doing so, the ozone generator 40 generates ozone.

According to the water purifier 100, when the ozone generator 40 generates ozone, the water flows through the main water passage 101 and the water flow from the main water passage 101 to the ozone water side flow passage 102. At least three conditions are imposed: the flow path switching unit 20 is switched, and the switch 132 or the switch 133 is switched ON. That is, when the at least three conditions are satisfied, the ozone generator 40 can generate ozone. When the ozone generator 40 generates ozone by satisfying the three conditions, ozone is mixed with the water flowing through the ozone water side channel 102. Thereby, the water purifier 100 can supply ozone water.

On the other hand, when the control unit 131 determines that water is not flowing through the main water channel 101, the flow channel switching unit 20 switches the flow of water from the main water channel 101 to the drinking water side channel 103. When determining whether or not the switch 132 and the switch 133 are turned off, the ozone generator 40 does not generate ozone.

Thus, in the water purifier 100, when water is not flowing through the flow path 110, the user operates the ozone generation operation unit 41, or the flow of water is switched to the flow path 110 intended by the user. The user is prevented from operating the ozone generation operation unit 41 by mistake, such as when the user operates the ozone generation operation unit 41 when the operation is not performed. Therefore, in the water purifier 100, when the water supplied from the water purifier 100 and the kind of water desired by the user are different, the user may use the water supplied from the water purifier 100 as it is. Is being prevented. That is, in the water purifier 100, the user is prevented from using ozone water as non-potable water by misidentifying it as drinking water.

Further, in the water purifier 100, when the control unit 131 determines that the water circulation in the main water passage 101 is stopped, the flow of water is passed from the main water passage 101 to the drinking water side flow passage 103. When it is determined that the switching unit 20 is switched, or when it is determined that the switch 132 and the switch 133 are switched OFF, the ozone generator 40 stops generating ozone.

According to this configuration, the ozone generator 40 can stop the generation of ozone when one of the three satisfied conditions is no longer satisfied. Therefore, in the water purifier 100, when the water supplied from the water purifier 100 and the kind of water desired by the user are different, the user may use the water supplied from the water purifier 100 as it is. Is being prevented.

The water purifier 100 includes a hollow fiber filter 114 disposed in the drinking water side flow path 103 and a connection path 104. The connection path 104 is disposed between the ozone water side flow path 102 and the drinking water side flow path 103. In addition, the water purifier 100 cleans the hollow fiber filter 114 when ozone water passes through the hollow fiber filter 114 via the connection path 104.

As described above, the hollow fiber filter 114 can be effectively cleaned by mixing the water flowing through the ozone water side channel 102 with a substance useful for cleaning the hollow fiber filter 114. Further, as described above, in the water purifier 100, when the water supplied from the water purifier 100 is different from the kind of water desired by the user, the user uses the water supplied from the water purifier 100. Use as it is is prevented. In other words, the water utilized when washing the hollow fiber filter 114 is a kind of water that is not intended for use by the user. Thus, in the water purifier 100, it is prevented that a user uses the waste_water | drain discharged | emitted from the water purifier 114 when the hollow fiber filter 114 is wash | cleaned.

In the water purifier 100, the non-drinkable substance is ozone, and the mixer is an ozone generator 40 that generates ozone.

Thus, by mixing ozone with the water flowing through the ozone water side channel 102 as the non-potable water side channel, the user can effectively use the water containing ozone appropriately as appropriate. . Moreover, the hollow fiber filter 114 can be effectively washed with water mixed with ozone.

As described above, according to the present embodiment, the water purifier 100 is capable of supplying ozone water and drinking water as non-potable water to a user, and the user misidentifies ozone water as drinking water. Thus, it is possible to provide the water purifier 100 that is prevented from being used.

(Second Embodiment)
As shown in FIG. 6, unlike the water purifier 100 of 1st Embodiment, the water purifier 200 of 2nd Embodiment is a flow path when supplying ozone water outside, and a flow path when supplying purified water outside. Are combined into one.

The water purification channel 106 is connected to the ozone water side channel 102 and the drinking water side channel 103 at the connection position 143. The connection position 143 is a position on the downstream side of the electromagnetic valve 98 in the ozone water side flow path 102 and a position on the downstream side of the electromagnetic valve 97 in the drinking water side flow path 103.

When purified water is supplied to the outside of the water purifier 200, the solenoid valve 95, the solenoid valve 96, and the solenoid valve 97 are closed, and the solenoid valve 98 is opened. Purified water as drinking water is supplied to the outside of the water purifier 200 via the electromagnetic valve 98 and the water purification path 106.

When ozone water is supplied to the outside of the water purifier 200, the electromagnetic valve 95, the electromagnetic valve 96, and the electromagnetic valve 98 are closed, and the electromagnetic valve 97 is opened. The ozone water is supplied to the outside of the water purifier 200 through the electromagnetic valve 97 and the water purification path 106.

The electromagnetic valve 95, the electromagnetic valve 96, the electromagnetic valve 97, and the electromagnetic valve 98 are closed when the water purifier 200 is not energized.

In addition, the other structure of the water purifier 200 of 2nd Embodiment is the same as that of the water purifier 100 of 1st Embodiment. Moreover, control when the water purifier 200 supplies ozone water is the same as control of the water purifier 100 of 1st Embodiment. Furthermore, the flow of water when the hollow fiber filter 114 is washed in the water purifier 200 is the same as the flow of water in the water purifier 100 of the first embodiment.

(Third embodiment)
As shown in FIG. 7, the water purifier 300 of the third embodiment has, for example, a water purification mode, an ozone water mode, and a raw water mode. The water purification mode is a mode in which the water purifier 300 supplies purified water to the outside. The ozone water mode is a mode in which the water purifier 300 supplies ozone water. The raw water mode is a mode in which the water purifier 300 supplies the raw water as it is without purifying the raw water. In the water purifier 300, for example, the water purification mode, the ozone water mode, and the raw water mode are selected based on the operation of the flow path switching unit 30 or the operation panel 61 (see FIG. 8) by the user. Moreover, the water purifier 300 may have a mode for selecting the temperature of the purified water supplied from the water purifier 300 based on the operation of the operation panel 61 by the user.

The water purifier 300 includes a flow path switching unit 30 and a raw water side flow path 107 through which raw water flows. The raw water side flow path 107 refers to a portion of the flow path 110 through which the raw water circulates downstream from the flow path switching unit 30. The raw water side channel 107 is connected to the main water channel 101. In addition, although illustration in FIG. 7 is omitted, the water purifier 300 includes a prefilter and activated carbon disposed in the flow path 110.

The flow path switching unit 30 switches the water flowing through the main water passage 101 so as to flow through any one of the ozone water side flow path 102, the drinking water side flow path 103, and the raw water side flow path 107. The flow path switching unit 30 is operated by a user. The channel switching unit 30 includes a channel switching lever 38 and a channel switching valve 39. By operating the flow path switching unit 30, the flow of water so that water flows from the main water flow path 101 to any one of the drinking water side flow path 103, the ozone water side flow path 102, and the raw water side flow path 107. Is switched. The flow path switching lever 38 is operated by the user of the water purifier 300, and the opening and closing of the flow path switching valve 39 is operated based on the operation of the flow path switching lever 38. By the operation of the flow path switching valve 39, the flow of water is switched so as to flow from the main water flow path 101 to any one of the drinking water side flow path 103, the ozone water side flow path 102, and the raw water side flow path 107.

The water purifier 300 includes a flow path position sensor 33. The flow path position sensor 33 determines whether the flow path switching unit 30 switches the flow of water flowing through the flow path 110 to any one of the ozone water side flow path 102, the drinking water side flow path 103, and the raw water side flow path 107. Detect.

The water purifier 300 includes an operation panel 61. The operation panel 61 has switches or buttons that are operated by the user. As shown in FIG. 8, the operation panel 61 is provided with an ozone generation operation unit 81. A switch 132 is connected to the ozone generation operation unit 81.

As shown in FIG. 7, the ozone generator 40 is connected to the ozone water side channel 102. A check valve 43 is disposed between the ozone generator 40 and the ozone water side flow path 102. The check valve 43 allows the flow of ozone introduced from the ozone generator 40 into the ozone water side flow path 102.

The ozone generation operation unit 81 is, for example, a push button. When the ozone generation operation unit 81 as a button is pressed, the switch 132 is turned on and the ozone generator 40 is turned on. However, the ozone generation operation unit 81 is not limited to the push type, and may be a slide type.

The control unit 131 controls the operation panel 61, the ozone generator 40, and the like when the water purifier 300 supplies ozone water to the outside of the water purifier 300. As shown in FIG. 8, the control unit 131 is connected to the flow rate sensor 121, the flow path position sensor 33, the switch 132, the ozone generator 40, and the operation panel 61. In the water purifier 300, the flow sensor 121 may be disposed in the ozone water side channel 102 in the channel 110. That is, the flow sensor 121 may measure the instantaneous flow rate of water flowing in the ozone water side flow path 102 and transmit a signal based on the measured instantaneous flow rate of water to the control unit 131.

Hereinafter, control when the water purifier 300 supplies ozone water to the outside will be described. FIG. 9 is a flowchart in the control unit 131 when the water purifier 300 supplies ozone water to the outside. As shown in FIG. 9, in step S41, the water purifier 300 is in a standby state. The standby state of the water purifier 300 is a state in which the water purifier 300 waits for ozone water to be supplied. In the standby state of the water purifier 300, the ozone generator 40 is in an OFF state in which ozone cannot be generated.

Subsequently, in step S42, it is determined whether or not the flow sensor 121 detects the flow of water flowing through the flow path 110.

In step S42, when the flow sensor 121 detects the flow of water flowing through the flow path 110, the process proceeds to step S43. In step S42, when the flow sensor 121 does not detect the flow of water flowing through the flow path 110, the process returns to step S41 and the standby state is continued.

In step S43, the flow of the water flows so that the water flows from the main water flow path 101 to the ozone water side flow path 102, the drinking water side flow path 103, and the raw water side flow path 107 by the operation of the flow path switching unit 30. It is determined whether or not it has been switched. The operation of the flow path switching unit 30 is detected by the flow path position sensor 33. If it is determined in step S43 that the water flow is switched so that water flows from the main water passage 101 to the ozone water side flow channel 102, the process proceeds to step S44. In step S43, the flow of water is not switched so that water flows from the main water flow path 101 to the ozone water side flow path 102, and water flows from the main water flow path 101 to the drinking water side flow path 103. If it is determined that the water flow has been switched, the process proceeds to step S48. In step S43, when it is determined that the flow of water is not switched so that water flows from the main water passage 101 to either the ozone water side channel 102 or the drinking water side channel 103, or When it is determined that the flow of water is switched so that water flows from the main water passage 101 to the raw water side passage 107, the process proceeds to step S49.

In step S44, the ozone water lamp 82 that has been turned off or lit starts to blink. As shown in FIG. 8, the ozone water lamp 82 is disposed on the operation panel 61. In addition, a water purification lamp 72 is disposed on the operation panel 61.

However, the ozone water lamp 82 does not have to be disposed on the operation panel 61. In this case, the ozone generation operation unit 81 may blink in step S44. When the ozone water lamp 82 or the ozone generation operation unit 81 starts blinking, the user is notified that ozone water can be supplied. In step S44, the water purification lamp 72 is turned off.

Subsequently, in step S45, it is determined whether or not the switch 132 is turned ON by operating the ozone generation operation unit 81 by the user. In step S45, when it is determined that the switch 132 is turned on by operating the ozone generation operation unit 81 by the user, the process proceeds to step S46. If it is determined in step S45 that the switch 132 has not been turned ON, the process returns to step S42. If it is determined in step S45 that the switch 132 is not turned ON, step S45 may be repeated.

In step S46, the operation of the ozone generator 40 is started, whereby the ozone generator 40 generates ozone. The generated ozone is mixed with the water flowing through the ozone water side channel 102 through the check valve 93 (see FIG. 7).

Subsequently, in step S47, control of ozone water supply is performed in the water purifier 300. In the control of the ozone water supply, for example, the controller 131 controls the ozone generator 40 and the operation panel 61 so that the ozone generator 40 generates ozone and the ozone water lamp 82 is turned on. When the water purifier 300 includes a pump (not shown), the control unit 131 may control the pump so that water flows through the ozone water side flow path 102. The control of the ozone water supply is, for example, that the switch 132 is turned OFF by the operation of the ozone generation operation unit 81 by the user, the drinking water side channel 103 or the raw water side channel 107 from the main water channel 101. When the control unit 131 determines that the flow of water has been switched so that water flows through the flow path 110, or that the flow sensor 121 does not detect the flow of water flowing through the flow path 110, the process ends.

In step S48, the water purification lamp 72 that has been turned off is turned on. When the water purification lamp 72 is lit, the user is notified that the water purifier 300 is supplying purified water to the outside. In step S48, the ozone water lamp 82 is turned off.

In step S49, the ozone water lamp 82 and the water purification lamp 72 are turned off. As a result, the user is notified that the water purifier 300 is supplying raw water to the outside.

Subsequent to step S48, the water purifying lamp 72 is, for example, that the flow of water has been switched so that water flows from the main water passage 101 to the ozone water side passage 102 or the raw water side passage 107, or a flow sensor. When the control unit 131 determines that the flow of water flowing through the flow path 110 is not detected by the control unit 131, the lighting unit 121 is switched from lighting to extinguishing.

In addition, when the ozone water lamp 82 displays the switching state of the switch 132, the ozone water lamp 82 may be lit or blinking in a different color depending on the switching state of the switch 132. Moreover, when the water purifier lamp 72 displays that the water purifier 300 supplies purified water, the water purifier is different in color when the water purifier 300 supplies purified water and when it does not supply purified water. The lamp 72 may be lit or blinking.

Other configurations of the water purifier 300 of the third embodiment are the same as those of the water purifier 100 of the first embodiment.

As described above, when the control unit 131 determines that water is flowing through the flow path 110, the flow of water is changed so that water flows from the main water flow path 101 to the ozone water side flow path 102. When it is determined that the switching unit 30 is switched, and when it is determined that the switch 132 is switched ON based on the operation of the ozone generation operation unit 81, the ozone generator 40 generates ozone. Let

In addition, when the control unit 131 determines that the water flow in the flow path 110 is stopped, the water flows in the flow path 110 except the ozone water side flow path 102 from the main water flow path 101. When it is determined that the flow path switching unit 30 is switching the flow of water, or when it is determined that the switch 132 is switched OFF, the ozone generator 40 stops generating ozone.

It should be considered that the embodiments disclosed above are illustrative and non-restrictive in every respect. The scope of the present invention is shown not by the above embodiment but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

According to this invention, since it is possible to provide a water purifier that prevents a user from misidentifying non-potable water as potable water and using it, it is possible to supply non-potable water and potable water. Useful for water purifiers.

20: Channel switching unit, 32: Channel position sensor, 40: Ozone generator, 41: Ozone generation operation unit, 100: Water purifier, 101: Main water channel, 102: Ozone water side channel, 103: Drinking water Side flow path, 110: flow path, 121: flow sensor, 131: control unit, 132: switch

Claims

A main water channel (101) through which raw water circulates, a non-potable water side channel (102) through which non-potable water branched from the main water channel (101) circulates, and a drinking water side channel through which potable water circulates A flow path (110) having at least (103),
A flow sensor (121) disposed in the flow path (110) for detecting the flow of water in the flow path (110);
In the channel (110), water flows from the main channel (110) to at least one of the non-potable water channel (102) and the drinking water channel (103). A flow path switching unit (20, 30) for switching the flow of water;
The flow path switching unit (20, 30) switches the flow of water flowing through the main water flow path (101) between the non-potable water side flow path (102) and the drinking water side flow path (103). Flow path position sensors (32, 33) for detecting whether or not
A mixer (40) connected to the non-potable water-side flow path (102) and for mixing a non-drinkable substance with water flowing through the non-potable water-side flow path (102);
An operation unit that is operated to switch between an ON state in which the mixer (40) can mix the non-drinkable substance with water flowing through the non-potable water side channel (102) and an OFF state in which the non-drinkable substance cannot be mixed 31, 61)
A switch (132) connected to the operation unit (31, 61) and configured to switch between the ON state and the OFF state based on an operation of the operation unit (31, 61);
A control unit (131) connected to the flow rate sensor (121), the flow path position sensor (32, 33), the switch (121), and the mixer (40);
When the control unit (131) determines that water is flowing through the flow path (110) based on the detection of the flow rate sensor (121), the control unit (131) detects the flow rate position sensor (32, 33). When it is determined that the flow path switching unit (20, 30) is switching the flow of water from the main water channel (101) to the non-potable water side flow path (102), and the operation unit When it is determined that the switch (132) is switched to the ON state based on the operation of (31, 61), the mixer (40) opens the non-potable water side channel (102). A water purifier (100, 200, 300) that mixes non-potable substances with flowing water.
When the control unit (131) determines that the flow of water in the flow path (110) is stopped, the non-potable water side flow path (102) is removed from the main water flow path (101). When it is determined that the flow path switching unit (20, 30) is switching the flow of water to the flow path (110), or that the switch (132) is switched to the OFF state. When determining, the water purifier (100, 200) according to claim 1, wherein the mixer (40) stops mixing the non-drinking substance with the water flowing through the non-potable water side channel (102). 300).
A filter (114) disposed in the potable water channel (103);
A connection path (104) disposed between the non-potable water side flow path (102) and the potable water side flow path (103),
The filter (114) is washed by passing the filter (114) through the connection path (104) through which the non-drinking substance is mixed with the water flowing through the non-potable water channel (102). The water purifier (100, 200) according to claim 1.
The non-drinkable substance is ozone;
The water purifier (100, 200, 300) according to claim 1, wherein the mixer (40) is an ozone generator (40) for generating ozone.