JP2013094696A - Solution producing apparatus and ozone water producing apparatus, and sanitary equipment cleaning apparatus equipped with the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a solution producing apparatus for producing liquid in which a specific substance is dissolved, that is, a solution producing apparatus and an ozone water producing apparatus preventing the specific substance in a gaseous state from remaining within the apparatus, and to provide a sanitary equipment cleaning apparatus equipped with the same.SOLUTION: The ozone water producing apparatus 100 includes a gas passage 114, a liquid passage 121, an ozone generator 120, an ejector 130, a gas-liquid separating section 140, and a control section. The control section controls the flow rate of water flowing through the liquid passage 121 so as to supply water from the liquid passage 121 to the ejector 130 while the ozone generator 120 is operated, and to continue to supply water from the liquid passage 121 to the ejector 130 for a predetermined time after the operation stop of the ozone generator 120 when the operation of the ozone generator 120 is stopped.

Description

  The present invention relates to a solution generator, an ozone water generator, and a sanitary appliance cleaning device including the same.

  For example, an ozone water hand-washing apparatus described in JP-A-2-174819 (hereinafter referred to as Patent Document 1), an ozone water production apparatus described in JP-A-3-15489 (hereinafter referred to as Patent Document 2), or As in the ozone water generator described in JP-A-8-168787 (hereinafter referred to as Patent Document 3), ozone gas is generated from oxygen or air, and the generated ozone gas is dissolved in water. Conventionally, an ozone water generator for generating dissolved water is known. An ozone water hand washing apparatus according to Patent Document 1, an ozone water production apparatus according to Patent Document 2, or an ozone water generation apparatus according to Patent Document 3 generates a specific gas and dissolves the generated specific gas in the liquid. It is an example of the apparatus which produces | generates the liquid which the specific substance melt | dissolved by doing.

  An ozone water hand-washing apparatus according to Patent Document 1 or an ozone water manufacturing apparatus according to Patent Document 2 includes an ozonizer that generates ozone gas by electrolyzing pure water, and a reaction cylinder for converting ozone gas into ozone water. , Ozone water discharge path for releasing ozone water obtained by contacting and reacting ozone gas and water inside the reaction cylinder, and ozone gas remaining due to the reaction between ozone gas and water outside the reaction cylinder An air passage for expelling, an air pump connected to one end of the air passage, an exhaust ozone passage for circulating the ozone gas expelled from the reaction tube, and an ozone killer disposed in the exhaust ozone passage are provided.

  Among the ozone water hand washing apparatus according to Patent Document 1 and the ozone water manufacturing apparatus according to Patent Document 2, for example, in the ozone water manufacturing apparatus according to Patent Document 2, the use of ozone water in which ozone gas is dissolved in water is performed for a certain time or more. If it is left untouched, that is, if a period of time longer than a predetermined time has passed after ozone gas is supplied to the reaction cylinder, it is supplied from the ozonizer by the air sent from the air pump into the reaction cylinder through the air passage. The ozone gas thus discharged is sent from the reaction cylinder to the ozone killer through the exhaust ozone passage. The gas decomposed and detoxified by the ozone killer is discharged out of the system of the ozone water hand washing device. Thus, the ozone water hand-washing apparatus according to Patent Document 1 or the ozone water manufacturing apparatus according to Patent Document 2 maintains the concentration of ozone gas in the reaction cylinder at an allowable value.

  An ozone water generation device according to Patent Document 3 includes an ozone gas generator that generates ozone gas from oxygen by performing discharge in oxygen gas, a liquid supply unit that supplies water from the outside, and water that is supplied from the liquid supply unit. And gas-liquid mixing means for mixing ozone gas supplied from the ozone gas generator. The gas-liquid mixing means has a gas-liquid mixer and a dissolution tank. The water supplied from the liquid supply means and the ozone gas supplied from the ozone gas generator are mixed by a gas-liquid mixer.

  The dissolution tank is a double tank composed of an inner tank and an outer tank. A mixture of ozone gas and water supplied from the gas-liquid mixer to the dissolution tank is ejected into the inner tank. In the inner tank, ozone gas is dissolved in water. The water in which the ozone gas is dissolved overflows from the inner tank to the outer tank and is then stored in the outer tank.

  In addition, the ozone water generation apparatus according to Patent Document 3 decomposes ozone gas into oxygen by filling a pipe that leads to the upper part of the outer tank of the dissolution tank, a processing container provided in the middle of the pipe, and the inside of the processing container. Ozone gas decomposing means comprising a catalyst and a heater provided around the processing vessel for heating the catalyst is provided. Ozone gas remaining without being dissolved in water in the dissolution tank is rendered harmless by being decomposed by the catalyst of the ozone gas decomposition means.

JP-A-2-174819 Japanese Patent Laid-Open No. 3-15489 JP-A-8-168787

  However, the ozone water hand-washing apparatus according to Patent Document 1 and the ozone water manufacturing apparatus according to Patent Document 2 are the ozone gas remaining in the reaction cylinder unless a certain time or more has elapsed since the use of ozone water was stopped. Is not released from the system of the apparatus after being decomposed and detoxified by the ozone killer.

  That is, in the ozone water hand-washing apparatus according to Patent Document 1 and the ozone water production apparatus according to Patent Document 2, ozone gas is at least contained in the reaction tube until a certain time or more elapses after the use of ozone water is stopped. Continue to remain. Therefore, in the portion where the ozone gas including the reaction cylinder remains, the contact between the portion and the ozone gas continues until a certain time or more elapses after the use of the ozone water is stopped.

  Moreover, since the ozone water production | generation apparatus which concerns on patent document 3 is not equipped with the structure which forcibly sends out the ozone gas which remains in a dissolution tank out of the system, ozone gas tends to remain in the system.

  When the portion where the ozone gas remains continues to come into contact with the ozone gas, there is a risk that the portion will be deteriorated by the ozone gas. For example, in the ozone water generating apparatus according to Patent Document 3, when ozone gas continues to remain in the vicinity of the discharge electrode that generates ozone, the discharge electrode is deteriorated, which adversely affects the generation of ozone.

  It should be noted that ozone is a useful substance when the user of the apparatus uses the liquid in which the substance is dissolved by being actively mixed and dissolved in the liquid supplied by the apparatus. It is an example of the specific substance which may have a bad influence by remaining in this part.

  Accordingly, an object of the present invention is a solution generation device that generates a liquid in which a specific substance is dissolved, and the solution generation device and ozone in which a specific substance in a gaseous state is prevented from remaining in the device It is providing a water production | generation apparatus and the washing | cleaning apparatus for sanitary instruments provided with the same.

  The solution generator according to the present invention is a solution generator that generates a liquid in which a specific substance is dissolved. The dissolved liquid production | generation apparatus according to this invention is provided with the gas flow path, the liquid flow path, the gas generation part, the gas-liquid mixing part, the gas-liquid separation part, and the control part.

  The gas flow path is for circulating a specific substance in a gaseous state. The liquid channel is for circulating a liquid in which a specific substance is dissolved. The gas generation unit is for generating a specific substance in a gas state and supplying the generated gas to the gas flow path. The gas-liquid mixing unit forms a part of the liquid channel, one end of the gas channel is connected, and a specific substance supplied from the gas generating unit to the gas channel is circulated through the liquid channel. In order to dissolve from one end of the gas flow path. The gas-liquid separation unit forms a part of the liquid flow channel downstream of the gas-liquid mixing unit in the liquid flow direction, and the other end of the gas flow channel is connected to the liquid flowing through the liquid flow channel. This is for separating bubbles of a specific substance and exhausting a part of the specific substance from the other end of the gas flow path to the gas flow path.

  The control unit supplies the liquid from the liquid channel to the gas-liquid mixing unit while the gas generating unit is operating, and when the operation of the gas generating unit is stopped, the liquid channel The flow rate of the liquid flowing through the liquid flow path is controlled so that the liquid is continuously supplied to the gas-liquid mixing unit for a predetermined time after the operation of the gas generating unit is stopped.

  According to the present invention, when the operation of the gas generating unit is stopped, the liquid is continuously supplied from the liquid channel to the gas-liquid mixing unit for a predetermined time after the operation of the gas generating unit is stopped. Thereby, after the operation | movement of a gas generation part is stopped, a liquid is supplied to a gas-liquid separation part from a gas-liquid mixing part. Therefore, the specific gas remaining in the gas channel is mixed into the liquid flowing through the liquid channel from the gas channel and discharged from the liquid channel to the outside. Thereby, after the operation of the gas generating unit is stopped, the specific substance in the gaseous state is prevented from remaining in the solution generating apparatus. For this reason, it is possible to prevent the portion where the specific substance in the gaseous state remains in the dissolution liquid generating apparatus from being deteriorated by the specific substance.

  Therefore, according to the present invention, there is provided a dissolution liquid generation apparatus that generates a liquid in which a specific substance is dissolved, and the dissolution liquid generation apparatus in which a specific substance in a gaseous state is prevented from remaining in the apparatus. Can be provided.

  It is preferable that the solution production | generation apparatus according to this invention is further equipped with the inflow valve. The inflow valve preferably restricts the flow of the liquid flowing from the liquid channel into the gas-liquid mixing unit. In the solution generating apparatus according to the present invention, the control unit preferably includes a determination unit, a valve control unit, and a timer. The determination unit preferably determines switching from the operating state of the gas generating unit to the non-operating state.

  The valve control unit preferably controls the inflow valve. Preferably, the valve control unit opens the liquid flow path to the inflow valve while the gas generation unit is operating, and the determination unit has switched the gas generation unit from the operating state to the non-operating state. Is determined, the predetermined flow elapses from the time when the determination unit determines that the gas generation unit has been switched from the operating state to the non-operating state, and then the liquid passage is blocked by the inflow valve.

  According to this configuration, the liquid flow path is opened by the inflow valve while the gas generation unit is operating. When the operation of the gas generating unit is stopped, the liquid flow path is opened by the inflow valve for a predetermined time from the time when the operation of the gas generating unit is stopped. Thus, according to this configuration, it is possible to continue supplying the liquid from the liquid flow path to the gas-liquid mixing unit for a predetermined time from when the operation of the gas generating unit is stopped. Therefore, it is prevented that the specific substance in a gaseous state remains in the solution generation apparatus. For this reason, it is possible to prevent the portion where the specific substance in the gaseous state remains in the dissolution liquid generating apparatus from being deteriorated by the specific substance.

  It is preferable that the solution production | generation apparatus according to this invention is further provided with the exhaust flow path, the 1st valve, the 2nd valve, and the decomposition | disassembly part. One end of the exhaust channel is preferably connected to the gas-liquid mixing unit. The other end of the exhaust flow path is preferably connected to the gas-liquid separator. The first valve preferably opens and closes a portion between the gas-liquid separation unit and the gas generation unit in the gas flow path. The second valve preferably opens and closes the exhaust passage. The decomposition unit is preferably for decomposing a specific substance discharged from the gas-liquid separation unit into the exhaust passage into a predetermined component.

  In the solution generation apparatus according to the present invention, the valve control unit preferably uses the portion between the gas-liquid separation unit and the gas generation unit as the first valve while the gas generation unit is operating. The exhaust valve is closed by the second valve. The valve control unit preferably switches the gas generation unit from the operation state to the non-operation state by the determination unit when the determination unit determines that the gas generation unit is switched from the operation state to the non-operation state. The first valve closes the portion between the gas-liquid separation part and the gas generation part and the exhaust valve is opened to the second valve until a predetermined time elapses from the time when it is determined that Let

  According to this configuration, when the operation of the gas generation unit is stopped from the liquid flow path, the liquid continues to be supplied for a predetermined time after the operation of the gas generation unit is stopped. On the other hand, the exhaust flow path extending between the gas-liquid separation unit and the gas-liquid mixing unit is closed by the second valve while the gas generation unit is operating. When the operation of the gas generation unit is stopped, the exhaust passage is opened for a predetermined time by the second valve from the time when the operation of the gas generation unit is stopped. As a result, when the operation of the gas generation unit is stopped, the gas continues to flow between the gas-liquid mixing unit and the gas-liquid separation unit and through the exhaust passage for a predetermined time. Furthermore, within this predetermined time, the specific substance flowing through the exhaust flow path is decomposed into predetermined components by the decomposition unit.

  The specific substance in the gaseous state remaining in the dissolution liquid generating apparatus and the substance decomposed into predetermined components are mixed from the gas flow path into the liquid flowing through the liquid flow path, so that the liquid flow path To be discharged. Thus, according to this structure, after the operation | movement of a gas generation part is stopped, it is prevented that the specific substance of a gaseous state remains in the said solution production | generation apparatus. For this reason, it is possible to prevent the portion where the specific substance in the gaseous state remains in the dissolution liquid generating apparatus from being deteriorated by the specific substance.

  It is preferable that the solution production | generation apparatus according to this invention is further provided with the inflow valve, the outflow valve, the circulation flow path, the decomposition part, and the pump. The inflow valve preferably opens and closes a portion of the liquid flow path upstream of the gas-liquid mixing portion in the liquid flow direction. The outflow valve preferably opens and closes a portion of the liquid flow path in the liquid flow direction downstream of the gas-liquid separation unit. One end of the circulation channel is preferably connected between the inflow valve of the liquid channel and the gas-liquid mixing unit. The other end of the circulation channel is preferably connected between the gas-liquid separation part of the liquid channel and the outflow valve. The decomposition unit is preferably for decomposing a specific substance discharged from the gas-liquid separation unit into the gas flow path into a predetermined component. The pump is preferably connected to the circulation channel.

  In the solution generating apparatus according to the present invention, the control unit preferably includes a determination unit, a valve control unit, a pump control unit, and a timer. The determination unit preferably determines switching from the operating state of the gas generating unit to the non-operating state. The valve control unit preferably controls the inflow valve and the outflow valve. The pump control unit preferably controls the pump.

  In the solution generator according to the present invention, the valve control unit preferably opens the upstream part of the inflow valve and the downstream part of the outflow valve while the gas generation unit is operating. Open. The valve control unit preferably switches the gas generation unit from the operation state to the non-operation state by the determination unit when the determination unit determines that the gas generation unit is switched from the operation state to the non-operation state. Until the predetermined time elapses from the time when it is determined that the flow rate is determined, the upstream portion is closed by the inflow valve and the downstream portion is closed by the outflow valve.

  In the solution generator according to the present invention, the pump control unit preferably generates the gas by the determination unit when the determination unit determines that the gas generation unit has been switched from the operating state to the non-operational state. The pump is operated from the time when it is determined that the part has been switched from the operating state to the non-operating state until a predetermined time has elapsed.

  According to this configuration, while the gas generation unit is operating, the liquid flows between the position where the inflow valve is disposed and the position where the outflow valve is disposed in the liquid flow path. When the operation of the gas generation unit is stopped, the liquid circulates for a predetermined time after the operation of the gas generation unit is stopped between the part of the liquid flow path and the circulation flow path by the operation of the pump. For this reason, when the operation of the gas generating unit is stopped, the liquid is continuously supplied from the circulation channel to the gas-liquid mixing unit for a predetermined time after the operation of the gas generating unit is stopped.

  On the other hand, when the operation of the gas generation unit is stopped, the gas continues to flow between the gas-liquid mixing unit and the gas-liquid separation unit in the liquid channel and through the gas channel for a predetermined time. The specific substance in the gaseous state remaining in the solution generator is mixed in the liquid circulating between a part of the liquid flow path and the circulation flow path within the predetermined time. Further, the specific substance mixed in the liquid is decomposed into predetermined components by the decomposition unit when flowing through the circulation channel during the predetermined time. In this way, the specific substance in the gaseous state is prevented from remaining in the solution generation apparatus. For this reason, it is possible to prevent the portion where the specific substance in the gaseous state remains in the dissolution liquid generating apparatus from being deteriorated by the specific substance.

  It is preferable that any one of the above solution generators is an ozone water generator that generates water in which ozone is dissolved. In the ozone water generating apparatus according to the present invention, the gas generating unit preferably generates ozone.

  The ozone water generating apparatus according to the present invention can prevent a situation in which a portion where gaseous ozone remains in the ozone water generating apparatus is deteriorated by ozone.

  It is preferable that the sanitary equipment cleaning device according to the present invention includes any one of the above-described solution generation devices.

  The sanitary ware cleaning apparatus according to the present invention can prevent a situation in which a portion where a specific substance in a gaseous state remains in the sanitary ware cleaning apparatus is deteriorated by the specific substance.

  As described above, according to the present invention, there is provided a solution generation device that generates a liquid in which a specific substance is dissolved, and the solution generation in which a specific substance in a gaseous state is prevented from remaining in the device is provided. It is possible to provide an apparatus, an ozone water generation apparatus, and a sanitary equipment cleaning apparatus including the apparatus.

It is a figure which shows typically the solution production | generation apparatus which concerns on 1st Embodiment of this invention. It is a block diagram which shows an example of the control part contained in the solution production | generation apparatus which concerns on 1st Embodiment of this invention. It is a flowchart which shows an example of control of the solution production | generation apparatus which concerns on 1st Embodiment of this invention. It is a figure which shows typically the solution production | generation apparatus which concerns on 2nd Embodiment of this invention. It is a block diagram which shows an example of the control part contained in the solution production | generation apparatus which concerns on 2nd Embodiment of this invention. It is a flowchart which shows an example of control of the solution production | generation apparatus which concerns on 2nd Embodiment of this invention. It is a figure which shows typically the solution production | generation apparatus which concerns on 3rd Embodiment of this invention. It is a block diagram which shows an example of the control part contained in the solution production | generation apparatus which concerns on 3rd Embodiment of this invention. It is a flowchart which shows an example of control of the solution production | generation apparatus which concerns on 3rd Embodiment of this invention. It is a schematic diagram which shows an example of the washing | cleaning apparatus for sanitary equipment provided with the ozone water production | generation apparatus for wash | cleaning the toilet as an example of sanitary equipment equipment. It is a schematic diagram which shows an example of the washing | cleaning apparatus for sanitary instruments provided with the ozone water production | generation apparatus for wash | cleaning the urinal as an example of a sanitary instrument. It is a schematic diagram which shows an example of the washing | cleaning apparatus for sanitary instruments provided with the ozone water production | generation apparatus for wash | cleaning the toilet bowl as an example of a sanitary instrument. In one embodiment of the ozone water generating apparatus which is an example of the solution generating apparatus according to the present invention, the time elapsed since the generation of ozone was stopped and the ozone concentration of the gas remaining in the ozone water generating apparatus It is a graph which shows the relationship and the time which passed since the production | generation of ozone was stopped, and the ozone concentration of ozone water.

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

(First embodiment)
FIG. 1 shows an ozone water generation apparatus 100 as an example of a solution generation apparatus according to the first embodiment of the present invention. The ozone water generation apparatus 100 is an apparatus that supplies water in which ozone is dissolved. The ozone water generating apparatus 100 includes a gas flow path 114, a liquid flow path 121, an ozone generator 120 as an example of a gas generation unit, an ejector 130 as an example of a gas-liquid mixing unit, and a gas-liquid separation unit 140. It has.

  The ozone water generator 100 is an example of a solution generator, and generates water in which ozone is dissolved. The solution generator may be any device that generates a liquid in which a specific substance is dissolved. A specific substance dissolved in a liquid is useful when a user of the apparatus uses the liquid in which the substance is dissolved by actively mixing and dissolving the liquid in the liquid supplied by the dissolution liquid generating apparatus. It is a serious substance. However, it is not preferable to leave a specific substance that may be adversely affected by the substance remaining in a predetermined part of the apparatus, in the apparatus.

  The ozone water generation apparatus 100 includes a gas introduction unit 110 that introduces a gas from the outside of the apparatus. The gas introduction part 110 has a pipe line 111 and a check valve 112. One end of the pipe line 111 is connected to a gas cylinder or the like storing oxygen or air. However, one end of the pipe line 111 may be opened to atmospheric pressure. In addition, the pipe line 111, the gas flow path 114, and the liquid flow path 121 are formed with general piping, and are formed with the tubular member which is not shown in figure.

  The other end of the pipe 111 is connected to the gas flow path 114 via the connection portion 113. The gas flow path 114 is for circulating ozone in a gaseous state. A check valve 115 is disposed in the gas flow path 114.

  Note that an ozone filter (not shown) having a function of reducing ozone gas may be disposed in the pipe line 111. The ozone filter is a general ozone filter, for example, a catalyst for decomposing ozone attached to paper or aluminum configured in a lattice shape.

  The ozone generator 120 generates gaseous ozone and supplies the generated ozone to the gas flow path 114. A gas such as air or oxygen introduced by the gas introduction unit 110 is introduced into the ozone generator 120 through the pipe 111 and the gas flow path 114. The ozone generator 120 has an ozone generating element (not shown) formed by a metal electrode. The ozone generating element generates ozone gas using the introduced air or oxygen as a material. In addition, the structure of the ozone generator 120 is not specifically limited, What is necessary is just to be comprised so that ozone gas may be produced | generated from gas, such as air introduced from the gas flow path 114, or oxygen. As the ozone generator 120, a general ozone generator can be used.

  In the ozone water generating apparatus 100, water as a liquid flows through the liquid channel 121. The liquid channel 121 circulates water in which ozone is dissolved. An inflow valve 151 is disposed in the liquid channel 121. The inflow valve 151 is an electromagnetic valve whose opening and closing is controlled electronically. The inflow valve 151 may be disposed outside the main body (not shown) of the ozone water generating apparatus 100 or may be accommodated inside the main body. The inflow valve 151 opens and closes a portion of the liquid flow path 121 upstream of the ejector 130 in the water flow direction.

  In the ozone water generating apparatus 100, an ejector type is used as the gas-liquid mixing unit. An ejector 130 as an example of a gas-liquid mixing unit forms part of the liquid channel 121. The ejector 130 is formed with a gas inlet 133, a liquid inlet 131, and an ozone water outlet 132. One end of the gas flow path 114 is connected to the ejector 130 via the inflow port 133. The inside of the ejector 130 and the inside of the gas flow path 114 are communicated with each other by an inflow port 133.

  The ozone supplied from the ozone generator 120 to the gas flow path 114 is introduced into the ejector 130 from one end of the gas flow path 114. The ozone introduced into the ejector 130 is mixed with water flowing through the liquid channel 121 and is dissolved in water based on the pressure of the flow in the liquid channel 121. In this way, the ejector 130 dissolves ozone as a gas supplied from the ozone generator 120 to the gas channel 114 in the water flowing through the liquid channel 121.

  A gas-liquid separator 140 is disposed downstream of the ejector 130 in the flow direction of the water flowing through the liquid flow path 121. The gas-liquid separator 140 forms a part of the liquid flow path 121 on the downstream side in the water flow direction from the ejector 130. The gas-liquid separator 140 has a container-like shape, that is, a polygonal column shape or a substantially columnar shape in which a space is formed. The shape of the gas-liquid separation unit 140 may be a polygonal cone shape or a substantially cone shape in which a space is formed. In the gas-liquid separator 140, a gas outlet 143, an ozone water inlet 141, and an ozone water outlet 142 are formed. The other end of the gas flow path 114 is connected to the outflow port 143.

  In the ozone water that has flowed into the gas-liquid separator 140 from the inflow port 141, ozone bubbles remain without being completely dissolved in the water. In the gas-liquid separation unit 140, the bubbles of ozone and the gas such as air contained in the water are separated from the water flowing through the liquid channel 121 and then discharged from the outlet 143 to the gas channel 114. The gas-liquid separation unit 140 separates a gas containing ozone bubbles from the water flowing through the liquid channel 121 and discharges a part of the ozone from the other end of the gas channel 114 to the gas channel 114.

  Next, the flow of water in the ozone water generator 100 and the flow of gas containing ozone will be described. In the ozone water generating apparatus 100, water as a liquid flows through the liquid channel 121. The water flowing through the liquid flow path 121 flows into the ejector 130 from the inflow port 131 after passing through the inflow valve 151. The water that has circulated through the ejector 130 flows out of the ejector 130 from the outlet 132.

  Inside the ejector 130, gaseous ozone generated by the ozone generator 120 flows from the inlet 133. The gaseous ozone flowing in from the inflow port 133 is mixed with water flowing through the inside of the ejector 130 as the liquid flow path 121. Part of the ozone mixed with water is dissolved in water based on the pressure of the water stream. Water containing ozone flows out of the ejector 130 from the outlet 132.

  Water containing ozone that has flowed out of the ejector 130 from the outlet 132 flows into the gas-liquid separator 140 from the inlet 141. Air and a part of ozone separated from water in the gas-liquid separator 140 flow out from the outlet 143 to the gas flow path 114. Ozone and air that are not dissolved in water flow into the ejector 130 from the inlet 133 after being discharged to the gas flow path 114. The ozone not dissolved in the water in the ejector 130 circulates in the liquid flow path 121 while circulating through the gas flow path 114 and a part of the liquid flow path 121 extending between the ejector 130 and the gas-liquid separation unit 140. It is gradually dissolved in the circulating water. The ozone water in which ozone is dissolved is discharged from the outlet 142 to the outside of the gas-liquid separator 140 and then supplied from the water discharger 160 to the outside of the ozone water generator 100.

  In FIG. 2, an example of a structure of the control part 180 with which the ozone water generating apparatus 100 is provided is shown. As shown in FIG. 2, the control unit 180 includes a timer 181, a determination unit 182, an ozone generation control unit 183, and a valve control unit 184.

  The ozone generation control unit 183 controls the ozone generator 120. The ozone generation control unit 183 controls a voltage applied to the metal electrode by controlling a power supply circuit connected to the metal electrode of the ozone generator 120. An operation unit 171 is electronically or electrically connected to the control unit 180 via a switch 172. The operation unit 171 is for operation by the user, and is disposed at a position where the user can operate the operation unit 171 from the outside of the ozone water generation apparatus 100.

  Based on the operation of the operation unit 171, the switch 172 is turned on or off. Depending on whether the switch 172 is on or off, the ozone generator 120 is switched between an on state and an off state, that is, an operating state or a non-operating state. The operating state of the ozone generator 120 is a state in which the ozone generator 120 is generating ozone. For example, a state in which a voltage is applied to a metal electrode (not shown) of the ozone generator 120. That is. On the other hand, the non-operating state of the ozone generator 120 is a state where the ozone generator 120 has stopped generating ozone. For example, the voltage is not applied to the metal electrode of the ozone generator 120. That is. The determination unit 182 performs determination necessary for control in the ozone water generation apparatus 100. The determination unit 182 determines whether the ozone generator 120 is switched from the operating state to the non-operating state.

  The valve control unit 184 controls the inflow valve 151. While the ozone generator 120 is operating, the valve control unit 184 opens the upstream portion of the liquid flow path 121 in the water flow direction to the inflow valve 151 with respect to the ejector 130 (see FIG. 1). Let When the determination unit 182 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 184 switches the ozone generator 120 from the operating state to the non-operating state. After a predetermined time has elapsed since it was determined that the switch was made, the inflow valve 151 blocks the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130. For example, when ozone water is generated in the ozone water generating apparatus 100, the operation of the ozone generator 120 is stopped when the amount of water per unit time which is the same as the amount of water supplied to the liquid channel 121 is stopped. After that, the liquid channel 121 is continuously supplied.

  Next, an example of the control of the ozone water generator 100 executed when the ozone generator 120 is switched from the operating state to the non-operating state will be described using a flowchart. As shown in FIG. 3, in step S11, it is determined whether or not the operation of the ozone generator 120 is stopped. If it is determined in step S11 that the operation of the ozone generator 120 has been stopped, the process proceeds to step S12.

  In step S12, counting of the time elapsed from the time when the operation of the ozone generator 120 is stopped is started. The time elapsed since the operation of the ozone generator 120 was stopped is counted by a timer 181 (see FIG. 2). In step S13, it is determined whether or not a predetermined time has elapsed since the operation of the ozone generator 120 was stopped. If it is determined in step S13 that the predetermined time has elapsed, the process proceeds to step S14.

  In step S <b> 14, the inflow valve 151 is controlled by the valve control unit 184 so that the inflow valve 151 closes the liquid flow path 121. Thereby, when the predetermined time has elapsed from the time when the operation of the ozone generator 120 is stopped, the flow of water flowing through the liquid flow path 121 is stopped by the inflow valve 151, so that water is supplied to the ejector 130. It stops flowing. As described above, when the operation of the ozone generator 120 is stopped, the water is continuously supplied from the liquid channel 121 to the ejector 130 for a predetermined time after the operation of the ozone generator 120 is stopped.

  In other words, the controller 180 (see FIG. 2) supplies water to the ejector 130 from the liquid flow path 121 (see FIG. 1) while the ozone generator 120 is operating, and generates ozone. When the operation of the vessel 120 is stopped, after the operation of the ozone generator 120 is stopped, the water flowing through the liquid flow passage 121 is continuously supplied from the liquid flow passage 121 to the ejector 130 for a predetermined time. To control the flow rate.

  As described above, the ozone water generating apparatus 100 according to the first embodiment is a dissolved liquid generating apparatus that generates water in which ozone is dissolved. The ozone water generation apparatus 100 includes a gas flow path 114, a liquid flow path 121, an ozone generator 120, an ejector 130, a gas-liquid separation unit 140, and a control unit 180.

  The gas flow path 114 circulates gaseous ozone. The liquid channel 121 circulates water in which ozone is dissolved. The ozone generator 120 generates gaseous ozone and supplies the generated ozone to the gas flow path 114. The ejector 130 forms part of the liquid flow path 121. One end of the gas flow path 114 is connected to the ejector 130. The ejector 130 dissolves ozone supplied from the ozone generator 120 to the gas channel 114 in water flowing through the liquid channel 121 from one end of the gas channel 114. The gas-liquid separator 140 forms a part of the liquid flow path 121 on the downstream side in the water flow direction from the ejector 130. The other end of the gas flow path is connected to the gas-liquid separator 140. The gas-liquid separation unit 140 separates gas such as bubbles of ozone and air from the water flowing through the liquid channel 121 and exhausts ozone from the other end of the gas channel 114 to the gas channel 114.

  When the ozone generator 120 is in operation, the control unit 180 supplies water to the ejector 130 from the liquid flow path 121, and when the operation of the ozone generator 120 is stopped, The flow rate of the water flowing through the liquid channel 121 is controlled so that the water is continuously supplied from the channel 121 to the ejector 130 for a predetermined time after the operation of the ozone generator 120 is stopped.

  According to the ozone water generating apparatus 100, when the operation of the ozone generator 120 is stopped, the water is continuously supplied from the liquid channel 121 to the ejector 130 for a predetermined time after the operation of the ozone generator 120 is stopped. Thereby, after the operation of the ozone generator 120 is stopped, water is supplied from the ejector 130 to the gas-liquid separator 140. Therefore, ozone remaining in the gas flow path 114 is mixed into the water flowing through the liquid flow path 121 from the gas flow path 114 and discharged from the liquid flow path 121 to the outside. This prevents gaseous ozone from remaining in the ozone water generator 100 after the operation of the ozone generator 120 is stopped. For this reason, it is possible to prevent a portion where gaseous ozone remains in the ozone water generating apparatus 100 from being deteriorated by ozone.

  By doing in this way, it is a solution production | generation apparatus which produces | generates the water by which ozone as a specific substance was melt | dissolved, Comprising: Ozone water production | generation apparatus 100 with which gaseous ozone was prevented from remaining in the said apparatus Can be provided.

  The ozone water generation apparatus 100 includes an inflow valve 151. The inflow valve 151 opens and closes a portion of the liquid flow path 121 upstream of the ejector 130 in the water flow direction. In the ozone water generating apparatus 100, the control unit 180 includes a determination unit 182, a valve control unit 184, and a timer 181. The determination unit 182 determines whether the ozone generator 120 is switched from the operating state to the non-operating state.

  The valve control unit 184 controls the inflow valve 151. While the ozone generator 120 is operating, the valve control unit 184 opens the liquid flow path 121 to the inflow valve 151, and the determination unit 182 switches the ozone generator 120 from the operating state to the non-operating state. If it is determined that the ozone generator 120 has been switched from the operating state to the non-operating state by the determining unit 182, the liquid flow channel 121 flows into the liquid channel 121 after a predetermined time has elapsed. The valve 151 is closed.

  According to the ozone water generator 100, while the ozone generator 120 is operating, the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130 is opened by the inflow valve 151. . In addition, when the operation of the ozone generator 120 is stopped, the upstream portion of the liquid flow path 121 in the water flow direction from the ejector 130 in the liquid flow path 121 causes the ozone generator 120 to operate. It is opened for a predetermined time from the time of stopping. Thus, according to the ozone water generating apparatus 100, water can be continuously supplied from the liquid channel 121 to the ejector 130 for a predetermined time from the time when the operation of the ozone generator 120 is stopped. Therefore, gaseous ozone is prevented from remaining in the ozone water generator 100. For this reason, it is possible to prevent a portion where gaseous ozone remains in the ozone water generating apparatus 100 from being deteriorated by ozone.

  In addition, the gas introduction part 110 should just be comprised so that gas can be introduced into the inside from the exterior of the ozone water production | generation apparatus 100. FIG. For example, the configuration of the gas introduction unit 110 may include an on-off valve or an electromagnetic valve that can control the amount of gas supplied to the ozone generator 120 instead of the check valve 112. Alternatively, the gas introduction unit 110 may not include the check valve 112 and may have a configuration in which a three-way valve is arranged at the connection unit 113. This three-way valve is electronically controlled, for example, and is controlled by the control unit 180.

  The position of the connecting portion 113 may be between the ozone generator 120 and the ejector 130 in the gas flow path 114. That is, the pipe line 111 may be connected to a portion of the gas flow path 114 that extends between the ozone generator 120 and the ejector 130.

  The liquid channel 121 is supplied with tap water as raw water by opening a tap faucet (not shown) by the user. However, the raw water is not limited to tap water, and may be well water or river water.

  The configuration of the gas-liquid mixing unit is not limited to the ejector type, and the ozone introduced from the gas flow channel 114 and the water flowing through the liquid flow channel 121 are mixed and the ozone is dissolved in the water. What is necessary is just to have a structure.

  The position of the inflow valve 151 in the liquid channel 121 is not particularly limited. The inflow valve 151 should just be arrange | positioned in the position which can restrict | limit the flow of the water which flows in into the ejector 130 from the liquid flow path 121. FIG. The inflow valve 151 may be disposed downstream of the ejector 130 in the water flow direction in the liquid flow path 121.

  The ozone water generator 100 may not include the check valve 115. Depending on the pressure of the gas containing a part of ozone flowing through the gas flow path 114, the ozone water generating apparatus 100 can circulate the gas from the outlet 143 to the inside of the ejector 130 through the connection portion 113.

  The configuration of the water discharger 160 is not particularly limited. The water discharger 160 only needs to be configured so that water in which ozone is dissolved can be discharged or discharged to the outside of the ozone water generator 100. For example, the water discharger 160 has an electromagnetic valve (not shown). May be. The opening and closing of the electromagnetic valve of the water discharger 160 is controlled by the controller 180, for example. The electromagnetic valve of the water discharger 160 may have a function as an inflow valve.

(Second Embodiment)
Below, the ozone water production | generation apparatus 200 which concerns on 2nd Embodiment is demonstrated using FIGS. 4-6. The ozone water generating apparatus 200 can be used for a sanitary appliance cleaning apparatus. In addition, below, the same code | symbol is attached | subjected to the structure which has a function similar to the structure of the ozone water generating apparatus 100 which concerns on 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 4, the ozone water generating apparatus 200 is different from the ozone water generating apparatus 100 according to the first embodiment in that the ozone water generating apparatus 200 includes an exhaust passage 216, an electromagnetic valve 211, and an electromagnetic valve 212. And an ultraviolet irradiation unit 220. The electromagnetic valve 212 opens and closes the exhaust passage 216. The electromagnetic valve 211 opens and closes the gas flow path 114. The ultraviolet irradiation unit 220 decomposes ozone into harmless components by irradiating the ozone discharged from the gas-liquid separation unit 140 to the exhaust passage 216 with ultraviolet rays. The ultraviolet irradiation unit 220 is an example of a decomposition unit.

  One end of the exhaust flow path 216 is connected to the gas flow path 114 by a connection portion 117. Thus, one end of the exhaust flow path 216 is connected to the ejector 130 via the gas flow path 114. The other end of the exhaust flow path 216 is connected to the gas flow path 114 by the connecting portion 116. As a result, the other end of the exhaust passage 216 is connected to the gas-liquid separator 140 via the gas passage 114. In addition, the pipe line 111, the gas flow path 114, the liquid flow path 121, and the exhaust flow path 216 are formed with general piping, and are formed with the tubular member which is not shown in figure.

  The electromagnetic valve 211 as an example of the first valve opens and closes a portion between the gas-liquid separator 140 and the ozone generator 120 in the gas flow path 114. The electromagnetic valve 212 as an example of the second valve opens and closes the exhaust passage 216.

  In FIG. 5, the structure of the control part 280 with which the ozone water production | generation apparatus 200 is provided is shown. As shown in FIG. 5, the control unit 280 includes a timer 281, a determination unit 282, an ozone generation control unit 283, a valve control unit 284, and an ultraviolet light control unit 285.

  The ozone generation control unit 283 controls the ozone generator 120. The determination unit 282 performs a determination necessary for control in the ozone water generation apparatus 200. The determination unit 282 determines whether the ozone generator 120 is switched from the operating state to the non-operating state.

  The ultraviolet control unit 285 controls the ultraviolet irradiation unit 220. The ultraviolet control unit 285 controls, for example, a light source circuit (not shown) connected to a light source (not shown) of the ultraviolet irradiation unit 220 to switch, for example, light emission or extinction of the light source, and ultraviolet rays emitted from the light source. Adjust the amount. The light source of the ultraviolet irradiation unit 220 is not particularly limited as long as the light emitted from the light source contains ultraviolet rays.

  The valve control unit 284 controls the inflow valve 151, the electromagnetic valve 211, and the electromagnetic valve 212. While the ozone generator 120 is in operation, the valve control unit 284 opens the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130 to the inflow valve 151. When the determination unit 282 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 284 switches the ozone generator 120 from the operating state to the non-operating state. After a predetermined time has elapsed since it was determined that the switch was made, the inflow valve 151 blocks the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130.

  During the operation of the ozone generator 120, the valve control unit 284 opens the portion between the gas-liquid separation unit 140 and the ozone generator 120 to the electromagnetic valve 211 and opens the exhaust passage 216 to the electromagnetic valve 212. Occlude. Further, when the determination unit 282 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 284 determines that the ozone generator 120 is not operated from the operating state. The portion between the gas-liquid separation unit 140 and the ozone generator 120 is closed by the electromagnetic valve 211 and the exhaust passage 216 is set between the time when it is determined that the state has been switched to the predetermined time. The electromagnetic valve 212 is opened.

  The ultraviolet ray control unit 285 controls the ultraviolet ray irradiation unit 220 so that the ultraviolet ray irradiation unit 220 does not emit ultraviolet rays while the ozone generator 120 is operating. When the determination unit 282 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the ultraviolet light control unit 285 changes the ozone generator 120 from the operating state to the non-operating state. The ultraviolet irradiation unit 220 is controlled so that ultraviolet rays are irradiated to the gas containing ozone flowing through the exhaust flow path 216 from the time when it is determined to be switched until the predetermined time elapses.

  Next, an example of the control of the ozone water generating device 200 executed when the ozone generator 120 is switched from the operating state to the non-operating state will be described using a flowchart. As shown in FIG. 6, in step S21, it is determined whether or not the operation of the ozone generator 120 is stopped. If it is determined in step S21 that the operation of the ozone generator 120 has been stopped, the process proceeds to step S22.

  In step S22, counting of the time elapsed from the time when the operation of the ozone generator 120 is stopped is started. The time elapsed from the time when the operation of the ozone generator 120 is stopped is counted by a timer 281 (see FIG. 5).

  Subsequently, in step S23, the valve control unit 284 controls the electromagnetic valve 211 so that the electromagnetic valve 211 closes the gas flow path 114. Further, the solenoid valve 212 is controlled by the valve control unit 284 so that the solenoid valve 212 opens the exhaust passage 216.

  In step S24, the ultraviolet ray irradiation unit 220 is controlled by the ultraviolet ray control unit 285 (see FIG. 5), whereby the ultraviolet ray irradiation is started. Thereby, ultraviolet rays are irradiated to the ozone exhausted from the gas-liquid separator 140 to the exhaust passage 216. Note that steps S22, S23, and S24 may be parallel steps, or the order of each may be switched.

  In step S25, it is determined whether or not a predetermined time has elapsed since the operation of the ozone generator 120 was stopped. If it is determined in step S25 that the predetermined time has elapsed, the process proceeds to step S26.

  In step S <b> 26, the inflow valve 151 is controlled by the valve control unit 284 such that the inflow valve 151 closes the liquid flow path 121. In step S27, the irradiation of ultraviolet rays is stopped.

  As described above, when the operation of the ozone generator 120 is stopped, the water is continuously supplied from the liquid channel 121 to the ejector 130 for a predetermined time after the operation of the ozone generator 120 is stopped. In addition, when the operation of the ozone generator 120 is stopped, among the gas containing ozone remaining in the ozone water generating apparatus 200, the gas containing ozone separated from the water flowing through the liquid channel 121 is changed to ozone. Ultraviolet rays are irradiated for a predetermined time after the operation of the generator 120 is stopped.

  As described above, the ozone water generating apparatus 200 according to the second embodiment includes the gas flow path 114, the liquid flow path 121, the ozone generator 120, the ejector 130, the gas-liquid separation unit 140, and the exhaust flow path. 216, an electromagnetic valve 211, an electromagnetic valve 212, and an ultraviolet irradiation unit 220. One end of the exhaust flow path 216 is connected to the ejector 130 by being connected to the gas flow path 114 by the connection portion 117. The other end of the exhaust channel 216 is connected to the gas-liquid separation unit 140 by being connected to the gas channel 114 by the connection unit 116. The electromagnetic valve 211 opens and closes a portion between the gas-liquid separator 140 and the ozone generator 120 in the gas flow path 114. The electromagnetic valve 212 opens and closes the exhaust passage 216. The ultraviolet irradiation unit 220 renders ozone harmless by decomposing ozone discharged from the gas-liquid separation unit 140 into the exhaust passage 216 into predetermined components.

  While the ozone generator 120 is operating, the valve control unit 284 opens the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130 to the inflow valve 151 to separate the gas and liquid. The part between the unit 140 and the ozone generator 120 is opened by the solenoid valve 211, and the exhaust passage 216 is closed by the solenoid valve 212. Further, when the determination unit 282 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 284 determines that the ozone generator 120 is not operated from the operating state. After a predetermined time has elapsed from the time when it is determined that the state has been switched to, the inflow valve 151 closes the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130.

  Further, when the determination unit 282 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 284 determines that the ozone generator 120 is not operated from the operating state. The portion between the gas-liquid separation unit 140 and the ozone generator 120 is closed by the electromagnetic valve 211 and exhausted to the electromagnetic valve 212 until the predetermined time has elapsed since it was determined that the state was switched to the state. The flow path 216 is opened.

  On the other hand, the ultraviolet ray control unit 285 stops the emission of the ultraviolet ray irradiation unit 220 while the ozone generator 120 is operating. When the determination unit 282 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the ultraviolet ray control unit 285 may stop the operation of the ozone generator 120 by the determination unit 282. The ultraviolet irradiation unit 220 is controlled so that ultraviolet rays are irradiated to the gas containing ozone flowing through the exhaust passage 216 for a predetermined time.

  According to the ozone water generating apparatus 200, when the operation of the ozone generator 120 is stopped, the water is supplied from the liquid flow path 121 to the ejector 130 for a predetermined time from the time when the operation of the ozone generator 120 is stopped. to continue. On the other hand, the exhaust passage 216 extending between the gas-liquid separator 140 and the ejector 130 is closed by the electromagnetic valve 212 while the ozone generator 120 is operating. When the operation of the ozone generator 120 is stopped, the exhaust passage 216 is opened by the electromagnetic valve 212 for a predetermined time from the time when the operation of the ozone generator 120 is stopped. As a result, when the operation of the ozone generator 120 is stopped, the gas continues to flow between the ejector 130 and the gas-liquid separator 140 and through the exhaust passage 216 for a predetermined time. Further, the ozone flowing through the exhaust passage 216 within this predetermined time is rendered harmless by the ultraviolet rays emitted from the ultraviolet irradiation unit 220.

  The detoxified substance and the ozone remaining in the ozone water generator 200 are discharged from the liquid channel 121 to the outside by being mixed into the water flowing through the liquid channel 121 from the gas channel 114. Thus, ozone is prevented from remaining in the ozone water generator 200 after the operation of the ozone generator 120 is stopped. Therefore, it is possible to prevent the portion where ozone remains in the ozone water generating apparatus 200 from being deteriorated by ozone.

  The ultraviolet irradiation unit 220 may be disposed upstream of the electromagnetic valve 212 in the flow direction of the gas flowing through the exhaust passage 216. In addition, the example of a decomposition | disassembly part is not limited to the ultraviolet irradiation part 220. FIG. Another example of the decomposition unit may be a heater that decomposes ozone into a harmless component substance by heating the gas containing ozone discharged from the gas-liquid separation unit 140 to the exhaust passage 216.

  Still another example of the decomposition unit may be a filter tank having activated carbon and disposed in the exhaust passage 216, such as a metal catalyst housed in a tubular member forming the exhaust passage 216. May be. Furthermore, the decomposition unit may be configured by any or all combinations of the filter tank containing the activated carbon, the heater, the metal catalyst, and the ultraviolet irradiation unit 220.

  When the ozone water generation apparatus 200 does not include the ultraviolet irradiation unit 220 but includes a heater, in the control executed by the ozone water generation apparatus 200 (see FIG. 6), “irradiation of ultraviolet rays” is performed in step S24. “Start” is read as “starting heating of the gas flowing through the exhaust passage 216”, and “stopping the irradiation of ultraviolet rays” in step S27 means “heating of the gas flowing through the exhaust passage 216”. It shall be read as “stop”.

  The ozone water generator 200 is not provided with the ultraviolet irradiation unit 220 or the heater, and the ozone water generator 200 has a configuration in which a filter tank containing activated carbon is arranged or a configuration in which a metal catalyst is contained in a tubular member. If so, step S24 and step S27 are omitted from the control executed by the ozone water generator 200.

  One end of the exhaust flow path 216 may be connected to the ejector 130 without passing through the gas flow path 114. In this case, in addition to the gas inlet 133, another inlet may be formed in the ejector 130, or the inlet 133 may be disposed inside the ejector 130, the gas flow path 114, and the exhaust flow path 216. May be used. The other end of the exhaust channel 216 may be connected to the gas-liquid separator 140 without the gas channel 114 being interposed. In this case, in addition to the gas outlet 143, another outlet may be formed in the gas-liquid separator 140, or the outlet 143 may be connected to the inside of the gas-liquid separator 140 and the gas flow path 114. In addition, the exhaust passage 216 may be communicated.

(Third embodiment)
Below, the ozone water production | generation apparatus 300 which concerns on 3rd Embodiment is demonstrated using FIGS. 7-9. The ozone water generating apparatus 300 can be used for a sanitary appliance cleaning apparatus. In addition, below, the same code | symbol is attached | subjected to the structure which has a function similar to the structure of the ozone water generating apparatus 100 which concerns on 1st Embodiment, and the description is abbreviate | omitted.

  As shown in FIG. 7, the ozone water generating device 300 is different from the ozone water generating device 100 according to the first embodiment in that the ozone water generating device 300 includes an inflow valve 153, an outflow valve 304, a circulation channel 301, and ultraviolet light. An irradiation unit 320 and a pump 310 are provided.

  The inflow valve 153 is an electromagnetic valve whose opening and closing is controlled electronically. The inflow valve 153 may be disposed outside the main body (not shown) of the ozone water generating apparatus 300, or may be accommodated inside the main body. The inflow valve 153 opens and closes a portion of the liquid channel 121 on the upstream side of the ejector 130 in the water flow direction.

  The outflow valve 304 is an electromagnetic valve whose opening and closing is controlled electronically. The outflow valve 304 opens and closes a portion of the liquid channel 121 on the downstream side in the water flow direction from the gas-liquid separation unit 140. One end of the circulation channel 301 is connected between the inflow valve 153 in the liquid channel 121 and the ejector 130 by a connection portion 303. The other end of the circulation channel 301 is connected by a connection unit 302 between the gas-liquid separation unit 140 and the outflow valve 304 in the liquid channel 121. In addition, the pipe line 111, the gas flow path 114, the liquid flow path 121, and the circulation flow path 301 are formed with general piping, and are formed with the tubular member which is not shown in figure.

  The ultraviolet irradiation unit 320 decomposes ozone into harmless components by irradiating the ozone discharged from the gas-liquid separation unit 140 to the gas flow path 114 with ultraviolet rays. The ultraviolet irradiation unit 320 is an example of a decomposition unit. The pump 310 is connected to the circulation channel 301.

  In FIG. 8, the structure of the control part 380 with which the ozone water production | generation apparatus 300 is provided is shown. As shown in FIG. 8, the control unit 380 includes a timer 381, a determination unit 382, an ozone generation control unit 383, a valve control unit 384, an ultraviolet light control unit 385, and a pump control unit 386.

  The ozone generation control unit 383 controls the ozone generator 120. The determination unit 382 performs a determination necessary for control in the ozone water generation apparatus 300. The determination unit 382 determines whether the ozone generator 120 is switched from the operating state to the non-operating state. The ultraviolet control unit 385 controls a power supply circuit (not shown) connected to a light source (not shown) of the ultraviolet irradiation unit 320, for example, switches between light emission and quenching of the light source, and ultraviolet rays emitted from the light source. Adjust the amount. The light source of the ultraviolet irradiation unit 320 is not particularly limited as long as the light emitted from the light source contains ultraviolet light.

  The pump control unit 386 controls the pump 310. The pump control unit 386 controls a power supply circuit (not shown) connected to the pump 310, for example, switches on or off the operation of the pump 310 and adjusts the output of the pump 310.

  The valve control unit 384 controls the inflow valve 153 and the outflow valve 304. While the ozone generator 120 is in operation, the valve control unit 384 opens the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130 to the inflow valve 153 and the liquid flow path. The outflow valve 304 is made to open a portion of the 121 downstream of the gas-liquid separator 140 in the water flow direction. Further, when the determination unit 382 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 284 determines that the ozone generator 120 is not operated from the operating state. Between the time when it is determined that the state has been switched to the passage of a predetermined time, the inflow valve 153 blocks the upstream portion of the liquid flow channel 121 in the water flow direction from the ejector 130. The outflow valve 304 closes the downstream portion of the liquid flow path 121 in the water flow direction from the gas-liquid separation unit 140.

  The pump control unit 386 stops the operation of the pump 310 while the ozone generator 120 is operating. When the determination unit 382 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the pump control unit 386 switches the ozone generator 120 from the operating state to the non-operating state. The pump 310 is operated during a period from when it is determined to be switched until a predetermined time elapses.

  The ultraviolet ray control unit 385 controls the ultraviolet ray irradiation unit 320 so that the ultraviolet ray irradiation unit 320 does not emit ultraviolet rays while the ozone generator 120 is operating. When the determination unit 382 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the ultraviolet light control unit 385 switches the ozone generator 120 from the operating state to the non-operating state. The ultraviolet irradiation unit 320 is controlled so that the ultraviolet ray is irradiated to the water containing ozone flowing through the circulation channel 301 from the time when it is determined to be switched until the predetermined time elapses.

  Next, an example of the control of the ozone water generating device 300 that is executed when the ozone generator 120 is switched from the operating state to the non-operating state will be described using a flowchart. As shown in FIG. 9, in step S31, it is determined whether or not the operation of the ozone generator 120 is stopped. When it determines with the operation | movement of the ozone generator 120 having been stopped in step S31, it progresses to step S32.

  In step S32, counting of the time elapsed from the time when the operation of the ozone generator 120 is stopped is started. The time elapsed since the operation of the ozone generator 120 was stopped is counted by a timer 381 (see FIG. 8).

  Subsequently, in step S <b> 33, the inflow valve 153 is controlled by the valve control unit 384 so that the inflow valve 153 closes the liquid channel 121. Further, the outflow valve 304 is controlled by the valve control unit 384 such that the outflow valve 304 closes the liquid channel 121.

  In step S34, the pump 310 is controlled by the pump control unit 386 (see FIG. 8), whereby the operation of the pump 310 is started. Through these steps S33 and S34, water circulates between a part of the liquid flow path 121 between the connection part 303 and the connection part 302 and the circulation flow path 301. In the liquid channel 121, water flows from the connection portion 303 toward the connection portion 302. In the circulation channel 301, water flows from the connection portion 302 toward the connection portion 303.

  In step S35, the ultraviolet ray irradiation unit 320 is controlled by the ultraviolet ray control unit 385 (see FIG. 8), whereby the ultraviolet ray irradiation is started. Thereby, ultraviolet rays are irradiated to the water containing ozone that flows through the circulation channel 301 and is exhausted from the gas-liquid separation unit 140 to the gas channel 114. Note that steps S32, S33, S34, and S35 may be parallel steps, and the order of each may be switched.

  In step S36, it is determined whether or not a predetermined time has elapsed since the operation of the ozone generator 120 was stopped. If it is determined in step S36 that the predetermined time has elapsed, the process proceeds to step S37.

  In step S37, the operation of the pump 310 is stopped. As described above, when the operation of the ozone generator 120 is stopped, water is continuously supplied from the liquid flow path 121 to the ejector 130 for a predetermined time after the operation of the ozone generator 120 is stopped.

  In step S38, the irradiation of ultraviolet rays is stopped. As described above, when the operation of the ozone generator 120 is stopped, the gas containing ozone separated from the water flowing through the liquid flow path 121 is added to the gas for a predetermined time after the operation of the ozone generator 120 is stopped. Ultraviolet rays are irradiated.

  As described above, the ozone water generating apparatus 300 includes the gas flow path 114, the liquid flow path 121, the ozone generator 120, the ejector 130, the gas-liquid separation unit 140, the inflow valve 153, and the outflow valve 304. A circulation channel 301, an ultraviolet irradiation unit 320, and a pump 310 are provided. The inflow valve 153 opens and closes a portion of the liquid channel 121 on the upstream side of the ejector 130 in the water flow direction. The outflow valve 304 opens and closes a portion of the liquid channel 121 on the downstream side in the water flow direction from the gas-liquid separation unit 140. One end of the circulation channel 301 is connected between the inflow valve 153 in the liquid channel 121 and the ejector 130. The other end of the circulation channel 301 is connected between the gas-liquid separator 140 and the outflow valve 304 in the liquid channel 121. The ultraviolet irradiation unit 320 renders ozone harmless by decomposing ozone discharged from the gas-liquid separation unit 140 into the gas flow path 114 into predetermined components. The pump 310 is connected to the circulation channel 301.

  The control unit 380 includes a determination unit 382, a valve control unit 384, a pump control unit 386, and a timer 381. The determination unit 382 determines whether the ozone generator 120 is switched from the operating state to the non-operating state. The valve control unit 384 controls the inflow valve 153 and the outflow valve 304. The pump control unit 386 controls the pump 310.

  While the ozone generator 120 is in operation, the valve control unit 384 opens the upstream portion of the liquid flow path 121 in the water flow direction with respect to the ejector 130 to the inflow valve 153 and the liquid flow path. The outflow valve 304 is made to open a portion of the 121 downstream of the gas-liquid separator 140 in the water flow direction. Further, when the determination unit 382 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the valve control unit 384 determines that the ozone generator 120 is not operated from the operating state. Between the time when it is determined that the state has been switched to the predetermined time, the upstream portion of the ejector 130 is blocked by the inflow valve 153 and the downstream portion of the ejector 130 is blocked by the outflow valve 304. Let

  When the determination unit 382 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the pump control unit 386 switches the ozone generator 120 from the operating state to the non-operating state. The pump 310 is operated during a period from when it is determined to be switched until a predetermined time elapses.

  On the other hand, the ultraviolet ray control unit 385 stops the emission of the ultraviolet ray irradiation unit 320 while the ozone generator 120 is operating. When the determination unit 382 determines that the ozone generator 120 has been switched from the operating state to the non-operating state, the ultraviolet ray control unit 385 stops the operation of the ozone generator 120 by the determination unit 382. The ultraviolet irradiation unit 320 is controlled so that ultraviolet rays are irradiated to water containing ozone flowing through the circulation channel 301 for a predetermined time.

  According to the ozone water generating apparatus 300, while the ozone generator 120 is operating, water flows between the position where the inflow valve 153 and the outflow valve 304 are disposed in the liquid flow path 121. Circulate. When the operation of the ozone generator 120 is stopped, the operation of the ozone generator 120 is stopped between the part of the liquid flow path 121 and the circulation flow path 301 by the operation of the pump 310. It circulates for a predetermined time from. Therefore, when the operation of the gas generating unit is stopped, water is continuously supplied to the ejector 130 from the circulation channel 301 for a predetermined time after the operation of the ozone generator 120 is stopped.

  On the other hand, when the operation of the ozone generator 120 is stopped, ozone-containing gas continues to flow between the ejector 130 and the gas-liquid separator 140 in the liquid channel 121 and through the gas channel 114 for a predetermined time. . The gaseous ozone remaining in the ozone water generator 300 is mixed into the water circulating between a part of the liquid channel 121 and the circulation channel 301 within this predetermined time. Further, the ozone mixed in the water is rendered harmless by the ultraviolet rays emitted from the ultraviolet irradiation unit 320 when flowing through the circulation channel 301 during this predetermined time. In this way, ozone is prevented from remaining in the ozone water generator 300. Therefore, it is possible to prevent the portion where ozone remains in the ozone water generating apparatus 300 from being deteriorated by ozone.

  The ultraviolet irradiation unit 320 may be disposed upstream of the pump 310 in the flow direction of the water flowing through the circulation channel 301. The example of the decomposition unit is not limited to the ultraviolet irradiation unit 320. Another example of the decomposition unit may be a heater. The heater decomposes ozone into harmless components by heating in the circulation channel 301 water mixed with gas containing ozone discharged from the gas-liquid separator 140 to the gas channel 114.

  Still another example of the decomposition unit may be a filter tank having activated carbon and disposed in the circulation channel 301, such as a metal catalyst housed in a tubular member forming the circulation channel 301. It's okay. Furthermore, the decomposition unit may be configured by any or all combinations of the filter tank, the heater, the metal catalyst, and the ultraviolet irradiation unit 320 that contain the activated carbon.

  In the case where the ozone water generation device 300 does not include the ultraviolet irradiation unit 320 but includes a heater, in the control executed by the ozone water generation device 300 (see FIG. 9), “irradiation of ultraviolet rays” is performed in step S35. “Start” is read as “starting heating of the water flowing through the circulation channel 301”, and “stopping the irradiation of ultraviolet rays” in step S38 means “heating of the water flowing through the circulation channel 301” It shall be read as “stop”.

  The ozone water generator 300 is not provided with the ultraviolet irradiation unit 320 or the heater, and the ozone water generator 300 has a configuration in which a filter tank containing activated carbon is arranged or a configuration in which a metal catalyst is contained in a tubular member. If so, step S35 and step S38 are omitted from the control executed by the ozone water generator 300.

  In addition, the step which makes the outflow valve 304 open the liquid flow path 121 may be performed between step S36 (refer FIG. 9) and step S37. According to this step, the ozone remaining in the ozone water generator 300 can be effectively discharged outside the ozone water generator 300.

  In addition, any of ozone water production | generation apparatus 100,200,300 can be used for the washing | cleaning apparatus for sanitary instruments. Sanitary ware includes, for example, toilets, toilets, large and small urinals used in bathrooms, hand-washers, wash-basins, bathtubs, and the like. That is, the sanitary appliance cleaning device provided with the ozone water generating device 100 is, for example, a device used for a toilet, a toilet, or a bathroom, or a device for cleaning a toilet, a toilet, or a bathroom. .

  For example, as shown in FIG. 10, a sanitary appliance cleaning device 950 for cleaning urinals 901, 902, and 903 is installed in a toilet 900. The toilet 900 is an example of a sanitary equipment facility. The sanitary appliance cleaning device 950 is connected to a pipe 910 for supplying water to the toilet including the urinals 901, 902, and 903. The sanitary appliance cleaning device 950 includes, for example, the ozone water generation device 100 among the ozone water generation devices 100, 200, and 300. When water flowing through the pipe 910 passes through the sanitary appliance cleaning device 950, ozone is dissolved in the water, thereby generating ozone water. The ozone water flowing through the pipe 910 after passing through the sanitary appliance cleaning device 950 is supplied to a toilet including the urinals 901, 902, and 903.

  Further, for example, as shown in FIG. 11, the urinal 920 includes a sanitary appliance cleaning device 922 for cleaning the sanitary ware 921. The urinal 920 is an example of a sanitary instrument. The sanitary appliance cleaning device 922 is disposed above the urinal 920. The sanitary appliance cleaning device 950 includes, for example, the ozone water generation device 100 among the ozone water generation devices 100, 200, and 300.

  Further, for example, as shown in FIG. 12, the toilet 940 includes a flush toilet seat 930. The cleaning toilet seat 930 includes, for example, a cleaning unit 934 including the ozone water generating device 100, a toilet seat cover 933, and a toilet seat 932 among the ozone water generating devices 100, 200, and 300. The cleaning unit 934 is an example of a sanitary appliance cleaning device for cleaning the sanitary ware 931. The toilet 940 is an example of a sanitary instrument.

  As described above, for example, in the toilet 900 in which the sanitary appliance cleaning device 920 including the ozone water generation device 100 is installed, the urinals 901, 902, and 903 from the ozone water generation device 100 or the ozone water generation device 100 are used. In the pipe 910 for supplying ozone water to the toilet containing the gas, the portion where the gaseous ozone remains can be prevented from being deteriorated by ozone.

(Example)
In the example, the ozone water generator 100 (see FIG. 1) according to the first embodiment is used to supply water from the liquid flow path 121 to the ejector 130 for a predetermined time after the operation of the ozone generator 120 is stopped. By continuing, as the amount of ozone remaining in the ozone water generator 100, the change in the concentration of ozone gas contained in the gas remaining in the ozone water generator 100 with respect to the elapsed time, and the elapsed time of the concentration of ozone contained in the ozone water The change with respect to was investigated.

  Regarding the ozone concentration of the air remaining in the ozone water generating device 100, the ozone concentration of the gas in the portion between the ozone generator 120 of the ozone water generating device 100 and the inlet 133 of the ejector 130 was measured. About the ozone concentration of ozone water, the ozone concentration of the ozone water which distribute | circulates the part between the outflow port 142 of the gas-liquid separation part 140 of the ozone water production | generation apparatus 100 and the discharge part 160 was measured. Since the operation of the ozone generator 120 was stopped, the amount of water supplied to the liquid channel 121 was about 2 L / min.

  The time elapsed after the operation of the ozone generator 120 was stopped was set to 0 seconds (that is, immediately after ozone water generation), 30 seconds, 60 seconds, 90 seconds, 120 seconds, 150 seconds, and 180 seconds. . As shown in FIG. 13, the gas ozone concentration and the ozone concentration of ozone water decrease as time elapses after the operation of the ozone generator 120 is stopped.

  Based on FIG. 13, it can be seen that the ozone water generator according to the present invention can prevent ozone from remaining in the ozone water generator.

  The embodiment disclosed above should be considered as illustrative in all points and not restrictive. The scope of the present invention is shown not by the above embodiments but by the scope of claims, and includes all modifications and variations within the meaning and scope equivalent to the scope of claims.

100: 200, 300: ozone water generator, 114: gas flow path, 120: ozone generator, 121: liquid flow path, 130: ejector, 140: gas-liquid separator, 151: inlet valve, 180: controller, 211: Solenoid valve, 212: Solenoid valve, 220, 320: Ultraviolet irradiation unit, 310: Pump

Claims (6)

A solution generator for generating a liquid in which a specific substance is dissolved,
A gas flow path for circulating the specific substance in a gaseous state;
A liquid flow path for circulating a liquid in which the specific substance is dissolved;
A gas generation unit for generating the specific substance in a gaseous state and supplying the generated gas to the gas flow path;
A liquid that forms part of the liquid flow path, is connected to one end of the gas flow path, and flows the specific substance supplied from the gas generation unit to the gas flow path through the liquid flow path A gas-liquid mixing part for dissolving from one end of the gas flow path,
A part of the liquid flow path that is downstream of the gas-liquid mixing portion in the liquid flow direction is formed, the other end of the gas flow path is connected, and the identification is made from the liquid flowing through the liquid flow path. A gas-liquid separation unit for separating bubbles of the substance and exhausting a part of the specific substance from the other end of the gas channel to the gas channel;
While the gas generating unit is operating, the liquid flow is supplied when the liquid is supplied from the liquid flow path to the gas-liquid mixing unit and the operation of the gas generating unit is stopped. A controller for controlling the flow rate of the liquid flowing through the liquid flow path so as to continue supplying the liquid for a predetermined time after the operation of the gas generating unit is stopped from the path to the gas-liquid mixing unit, Solution generator. An inflow valve for restricting a flow of liquid flowing into the gas-liquid mixing unit from the liquid flow path;
The control unit includes a determination unit that determines switching from an operating state of the gas generating unit to a non-operating state, a valve control unit that controls the inflow valve, and a timer,
The valve control unit causes the inflow valve to open the liquid channel while the gas generation unit is operating, and the determination unit switches the gas generation unit from an operating state to a non-operating state. If it is determined that the gas generating unit has been switched from the operating state to the non-operating state by the determining unit, a predetermined time elapses after the determination unit determines that the gas generating unit has been switched from the operating state to the non-operating state. The solution generator according to claim 1, wherein the flow path is closed. An exhaust flow path having one end connected to the gas-liquid mixing unit and the other end connected to the gas-liquid separation unit;
A first valve that opens and closes a portion between the gas-liquid separation unit and the gas generation unit in the gas flow path;
A second valve for opening and closing the exhaust passage;
A decomposition unit for decomposing a specific substance discharged from the gas-liquid separation unit into the exhaust flow path into a predetermined component;
The valve control unit causes the first valve to open the portion and the second valve to block the exhaust flow path while the gas generation unit is operating, and the determination unit When it is determined by the determination unit that the gas generation unit has been switched from the operation state to the non-operation state, the determination unit determines that the gas generation unit has been switched from the operation state to the non-operation state. 3. The solution generation device according to claim 2, wherein the first valve closes the portion and the second valve opens the exhaust flow channel until the predetermined time elapses. An inflow valve that opens and closes a portion of the liquid flow path upstream of the gas-liquid mixing unit in the liquid flow direction;
An outflow valve that opens and closes a portion of the liquid flow path downstream of the gas-liquid separation unit in the liquid flow direction;
One end is connected between the inflow valve and the gas-liquid mixing unit in the liquid channel, and the other end is connected between the gas-liquid separation unit and the outflow valve in the liquid channel. Circulation path,
A decomposition unit for decomposing a specific substance discharged from the gas-liquid separation unit into the gas flow path into a predetermined component;
A pump connected to the circulation flow path;
The control unit includes a determination unit that determines switching of the gas generation unit from an operating state to a non-operating state, a valve control unit that controls the inflow valve and the outflow valve, and a pump control unit that controls the pump; A timer and
The valve control unit causes the inflow valve to open the upstream portion and the outflow valve to open the downstream portion while the gas generation unit is operating, and the determination unit. When it is determined by the determination unit that the gas generation unit has been switched from the operation state to the non-operation state, the determination unit determines that the gas generation unit has been switched from the operation state to the non-operation state. Until the predetermined time elapses, the inflow valve closes the upstream portion and the outflow valve closes the downstream portion,
When the determination unit determines that the gas generation unit has been switched from the operating state to the non-operation state, the pump control unit causes the determination unit to change the gas generation unit from the operation state to the non-operation state. The solution generator according to claim 1, wherein the pump is operated during a period from when it is determined to be switched until the predetermined time elapses. The gas generating unit generates ozone,
The solution generator of any one of claims 1 to 4 is an ozone water generator that generates water in which ozone is dissolved. It was provided with the solution generation device according to any one of claims 1 to 5.
Cleaning device for sanitary equipment.

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