WO2022168152A1 - 加湿装置 - Google Patents
加湿装置 Download PDFInfo
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- WO2022168152A1 WO2022168152A1 PCT/JP2021/003707 JP2021003707W WO2022168152A1 WO 2022168152 A1 WO2022168152 A1 WO 2022168152A1 JP 2021003707 W JP2021003707 W JP 2021003707W WO 2022168152 A1 WO2022168152 A1 WO 2022168152A1
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- Prior art keywords
- unit
- water
- humidifying
- supply
- humidification
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 384
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- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 2
- 238000010612 desalination reaction Methods 0.000 description 2
- 239000003456 ion exchange resin Substances 0.000 description 2
- 229920003303 ion-exchange polymer Polymers 0.000 description 2
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- 229910052799 carbon Inorganic materials 0.000 description 1
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F6/00—Air-humidification, e.g. cooling by humidification
Definitions
- the present disclosure relates to humidifiers.
- a humidifying device that supplies tap water to the humidifying unit for washing after the humidifying mode ends.
- concentration of scale-causing ions in the humidifying section can be reduced, and scale deposition can be suppressed (see Patent Document 1, for example).
- the present disclosure has been made to solve the above-described problems, and aims to provide a humidifying device capable of suppressing scale deposition in the humidifying section.
- the humidifying device includes a humidifying unit that vaporizes water into the air, a supply unit that supplies water to the humidifying unit, a desalted water supply unit that supplies desalted water to the humidifying unit, and from the supply unit to the humidifying unit.
- a control unit that controls the supply of water from the desalinated water supply unit to the humidification unit when the operation status of the humidification unit or the operation status of the supply unit satisfies a predetermined standard.
- scale deposition in the humidifying section can be suppressed.
- FIG. 4 is a flowchart showing control of the controller of the humidifying device according to the first embodiment;
- FIG. FIG. 5 is a schematic diagram showing a water treatment section of the humidifying device according to the second embodiment;
- FIG. 10 is a flowchart showing control of a control unit of the humidifying device according to the second embodiment;
- FIG. 4 is a flowchart showing control of the controller of the humidifying device according to the first embodiment
- FIG. FIG. 5 is a schematic diagram showing a water treatment section of the humidifying device according to the second embodiment;
- FIG. 10 is a flowchart showing control of a control unit of the humidifying device according to the second embodiment;
- FIG. 1 is a configuration diagram showing a humidifying device 100a according to Embodiment 1.
- the humidifying device 100 a includes a supply section 1 , a desalted water supply section 2 , a control section 3 and a humidification section 4 .
- the humidifying device 100 a further includes a valve 5 , a valve 6 and a drain valve 7 . Details will be described below.
- the supply unit 1 is connected to a humidification unit 4 (described later) via piping.
- a valve 5 is arranged in a pipe connecting the supply unit 1 and the humidification unit 4 .
- the supply unit 1 supplies water to the humidification unit 4 .
- the supply unit 1 is, for example, a tap or a water pipe that supplies tap water, industrial water, or the like.
- the supply unit 1 is, for example, a tank, and water may be supplied from the tank to the humidification unit 4 .
- the supply section 1 may be provided with a water conveying device such as a pump.
- the desalted water supply unit 2 is connected to the humidification unit 4 via piping.
- a valve 6 is arranged in a pipe connecting the desalted water supply unit 2 and the humidification unit 4 .
- the desalted water supply unit 2 supplies desalted water to the humidifying unit 4 .
- the ion concentration of the desalted water is lower than the ion concentration of water supplied from the supply unit 1 to the humidification unit 4 .
- the desalted water supply unit 2 may be anything as long as it supplies desalted water, for example, reverse osmosis membrane treatment equipment, electrodialysis equipment, ion exchange resin tower, ion exchange membrane equipment, or capacitive deionization equipment. Just do it.
- the desalted water supply unit 2 is, for example, a tank storing desalted water, and the desalted water may be supplied from the tank to the humidifying unit 4 .
- the desalted water supply section 2 may be provided with a water conveying device such as a pump.
- any method such as a dropping method, a vaporization method, or an ultrasonic method, may be used as long as it is a method that may cause scale deposition or a method that reduces performance due to scale deposition.
- the humidifying section 4 of the present disclosure is shown as an example of a vaporization type humidifying section 4 .
- the drain valve 7 is connected to the humidifying section 4 via a pipe.
- the drain valve 7 is controlled to be opened by the control section 3 to be described later, and the water and desalted water supplied from the supply section 1 and the desalted water supply section 2 are drained from the humidification section 4 .
- the control unit 3 is communicably connected to each of the humidification unit 4, the valve 5, the valve 6, and the drain valve 7. Therefore, the connection between the control unit 3 and the humidifying unit 4, the valve 5, the valve 6, and the drain valve 7 may be wired or wireless.
- the control unit 3 controls the supply of water from the supply unit 1 to the humidification unit 4, and the operation status of the humidification unit 4 or the operation status of the supply unit 1 (each of which will be described later) satisfies a predetermined criterion. In this case, control is performed to supply desalted water from the desalted water supply unit 2 to the humidifying unit 4 .
- the operation status of the humidifying section 4 is the operating time of the humidifying section 4. As shown in FIG.
- the operation of the humidifying unit 4 is a humidifying operation of vaporizing water to humidify the air.
- the control unit 3 controls the valve 5 to open, the valve 6 to close, and the drain valve 7 to open.
- control unit 3 a PLC (Programmable Logic Controller), a sequencer, a numerical control device, or the like may be used to operate the device according to specified conditions.
- control unit 3 may have a storage unit that stores the operation status of the humidifying unit 4 .
- control unit 3 may have a timer that stores the operating time of the humidifying unit 4 .
- FIG. 2 is a flowchart showing the control of the controller 3 of the humidifying device 100a according to the first embodiment.
- the control unit 3 confirms whether or not the operation time of the humidifying unit 4 is equal to or longer than a predetermined time (step ST1).
- the time at which the operation time measurement is started is, for example, the time at which the desalted water supply unit 2 finished supplying desalted water to the humidifying unit 4 last time and the humidifying unit 4 started operating.
- step ST1 When the operating time of the humidifying unit 4 is less than the predetermined time (step ST1; NO), the control unit 3 checks whether the humidifying unit 4 is operating (step ST2). When the humidifying unit 4 is operating (step ST2; YES), the control unit 3 controls the valve 5 to open and the valve 6 to close. Control is performed so as to maintain the closed state, and the supply of water from the supply unit 1 to the humidification unit 4 is continued (step ST3). Then, after a predetermined time has elapsed, the control section 3 returns to the determination of step ST1.
- step ST2 When the humidifying unit 4 is not in operation (step ST2; NO), the control unit 3 controls the valves 5 and 6 to be closed. After a predetermined period of time has passed, the process returns to step ST2.
- “humidification part 4 is not operating” refers to humidification part 4 in a standby state.
- step ST4 When the operating time of the humidifying section 4 is equal to or longer than the predetermined time (step ST1; YES), the control section 3 confirms whether or not the humidifying section 4 is operating (step ST4).
- the control unit 3 controls the valve 5 to open and the valve 6 to close, so the control unit 3 controls the valve 5 to close. , the valve 6 is controlled to remain closed, and the humidifying section 4 is placed in a standby state (step ST5).
- step ST5 After that, the control unit 3 controls the valve 5 to be kept closed, the valve 6 to be opened, and the drain valve 7 to be opened, so that the desalted water is supplied from the desalted water supply unit 2 to the humidification unit 4.
- the humidifying unit 4 is washed with desalted water (step ST6).
- the humidifying section 4 may be placed in the standby state by the user's operation, or may be placed in the standby state by the control of the control section 3.
- step ST4 When the humidifying unit 4 is not in operation (step ST4; NO), the valves 5 and 6 are controlled to be closed by the control unit 3, so the control unit 3 controls the valve 5 to keep it closed. Then, the valve 6 is controlled to open, the drain valve 7 is also controlled to open, and demineralized water is supplied from the demineralized water supply section 2 to the humidifying section 4 (step ST7).
- supplying desalted water from the desalted water supply unit 2 to the humidifying unit 4 is referred to as "washing the humidifying unit 4".
- the control unit 3 checks whether a predetermined time has passed since the washing of the humidifying unit 4 in steps ST6 and ST7 (step ST8), and if the predetermined time has not passed (step ST8; NO), the controller 3 continues the cleaning of the humidifier 4 (step ST9).
- step ST8 If a predetermined time has passed after the cleaning of the humidifying unit 4 in steps ST6 and ST7 (step ST8; YES), the control unit 3 closes the valve 6 while keeping the valve 5 closed.
- the valve 7 is also controlled to be closed, the humidifying section 4 is placed in a standby state (step ST10), and the control is terminated.
- the control unit 3 returns to the determination of step ST1 and repeats the above-described control.
- the humidifying device 100a includes the humidifying unit 4 that vaporizes water into the air, the supplying unit 1 that supplies water to the humidifying unit 4, and the desalted water supplying unit 2 that supplies desalted water to the humidifying unit 4. , controlling the supply of water from the supply unit 1 to the humidification unit 4, and humidifying from the desalted water supply unit 2 when the operation status of the humidification unit 4 or the operation status of the supply unit 1 satisfies a predetermined standard. and a control unit 3 for controlling the supply of desalted water to the unit 4 .
- the humidifying device 100a cleans the humidifying unit 4 with desalted water having a low ion concentration compared to the case where the humidifying unit 4 is cleaned with water such as tap water supplied from the supply unit 1. Therefore, scale deposition in the humidifying section 4 can be suppressed.
- step ST5 the control unit 3 controls the valve 5 to close and the valve 6 to close to put the humidifying unit 4 in the standby state.
- the control unit 3 closes the valve 5 and opens the valve 6 to supply desalted water from the desalted water supply unit 2 to the humidifying unit 4 for a predetermined time. may be supplied.
- the control unit 3 may open the valve 5 and close the valve 6 to supply water from the supply unit 1 to the humidification unit 4 .
- the humidifying unit 4 can be washed without waiting for the humidifying unit 4 to enter the standby state.
- FIG. 3 is a configuration diagram showing a humidifying device 100b according to the second embodiment.
- the desalted water supply unit 2 of the humidifying device 100a includes a first water tank 8, a valve 9, a valve 10, a three-way valve 11, a water treatment unit 12, a drain valve 13, a pump 14, and a three-way valve 15. , differs from the humidifying device 100a in that the valve 6 is not included.
- FIG. 3 since the structure which attached
- the humidifying device 100 b includes a supply unit 1 , a control unit 3 , a humidifying unit 4 , a first water tank 8 and a water treatment unit 12 .
- the humidifying device 100b further includes a valve 5, a drain valve 7, a valve 9, a valve 10, a three-way valve 11, a drain valve 13, a pump 14, a three-way valve 15, a first pipe 16a and a first A pipe 16 b (hereinafter collectively referred to as “first pipe 16 ”), a second pipe 17 , and a third pipe 18 are provided. Details will be described below.
- the supply unit 1 is connected to the humidification unit 4 via a pipe and supplies water to the humidification unit 4.
- a valve 5 is arranged in a pipe connecting the supply unit 1 and the humidification unit 4 .
- the supply unit 1 is connected to the first water tank 8 via the first pipe 16a.
- a three-way valve 11 for switching whether to Furthermore, a valve 10 is arranged in the first pipe 16b that connects the supply unit 1 and the water treatment unit 12 .
- the valve 9 is arranged on the supply section 1 side
- the three-way valve 11 is arranged on the first water tank 8 and water treatment section 12 side.
- the first water tank 8 is connected to the humidification section 4 and the water treatment section 12 via piping.
- the desalted water supplied from the first water tank 8 can be switched between being supplied to the humidifying section 4 and being supplied to the water treatment section 12 by means of the three-way valve 15 .
- the pipe connecting the three-way valve 15 and the humidification unit 4 is referred to as the second pipe 17, and the pipe connecting the three-way valve 15 and the three-way valve 11 via the water treatment unit 12 is referred to as the third pipe 18. and write down.
- the water treatment unit 12 removes ionic substances contained in the water supplied from the supply unit 1 to generate desalted water.
- the drain valve 13 is connected to the water treatment section 12 via piping.
- the control unit 3 controls the drain valve 13 to open, and the water supplied from the supply unit 1 is drained from the water treatment unit 12 .
- the first water tank 8 When water is supplied from the supply unit 1 to the first water tank 8, the first water tank 8 stores the water. Then, the water stored in the first water tank 8 is supplied to the water treatment section 12 through the third pipe 18 by the pump 14 . In the water treatment unit 12, ionic substances contained in the water are removed by a process described later to generate desalted water. By switching the three-way valve 11, the desalted water generated in the water treatment unit 12 passes through the third pipe 18 and is supplied to the first water tank 8 again. In this manner, desalted water having an ion concentration lower than that of water is stored in the first water tank 8 and supplied to the humidifying section 4 under the control of the control section 3 .
- the control unit 3 is communicably connected to each of the humidifying unit 4, the valve 5, the drain valve 7, the valve 9, the valve 10, the three-way valve 11, the water treatment unit 12, the drain valve 13, the pump 14, and the three-way valve 15. be. Therefore, the connection between the control unit 3 and the humidifying unit 4, the valve 5, the drain valve 7, the valve 9, the valve 10, the three-way valve 11, the water treatment unit 12, the drain valve 13, the pump 14, and the three-way valve 15 is wired. It may be present or wireless. The control performed by the control unit 3 will be described later.
- FIG. 4 is a schematic diagram showing the water treatment section 12 of the humidifying device 100b according to the second embodiment.
- the water treatment unit 12 of the humidifier 100b an example of removing ions by a capacitive deionization method will be described, but any treatment that can remove ions in water may be used, such as treatment using a reverse osmosis membrane, ion exchange. Treatment using a membrane, treatment using an ion exchange resin, treatment using an electrodialyzer, treatment using an evaporator for obtaining distilled water, and the like may be used.
- the water treatment unit 12 has a DC power supply 120 , an inlet 121 , a pair of current collectors 122 , a pair of electrodes 123 , a separator 124 and an outlet 125 .
- a pair of electrodes 123 are arranged so as to sandwich the separator 124 .
- a pair of current collectors 122 are arranged so as to sandwich a pair of electrodes 123 from above and below.
- the current collector 122 is connected to a DC power supply 120 , and electricity is applied to the electrode 123 by applying electricity from the DC power supply 120 to the current collector 122 .
- electricity is applied to the electrodes 123 to adsorb the ionic substances contained in the water supplied from the supply unit 1 onto the electrodes 123 .
- the separator 124 suppresses short circuits between the electrodes 123 .
- the water treatment unit 12 After performing the ion removal process, the water treatment unit 12 performs a "regeneration process" in which the ionic substances adsorbed by the electrodes 123 are released into water under the control of the control unit 3. Specifically, the control unit 3 cancels the application of the voltage or the application of the current during the ion removal step, for example, stops the application of the voltage or the current to the electrodes 123, the short circuit between the electrodes 123, and the ion removal. At least one of a voltage is applied in a direction opposite to the voltage applied during the process, that is, when desalted water is generated. In the regeneration process of the water treatment unit 12 , the current collector 122 collects electricity when electricity is discharged from the electrode 123 .
- the regeneration process cleans the electrode 123 and makes it possible to remove ionic substances again.
- the DC power supply 120 for applying electricity to the electrode 123 is connected to the control unit 3, and the control unit 3 controls the ion removal process and the regeneration process in the water treatment unit 12. controlled.
- the ionic substances adsorbed to the electrode 123 are released into water, and the water in which the ionic substances are released passes through the first pipe 16b and is supplied from the supply unit 1 to the water treatment unit 12. be.
- FIG. 5 is a flowchart showing the control of the controller of the humidifying device 100b according to the second embodiment.
- the control unit 3 confirms whether or not the operation time of the humidifying unit 4 is equal to or longer than a predetermined time (step ST1).
- the control unit 3 checks whether the water level in the first water tank 8 is equal to or higher than a predetermined value (step ST11).
- the water level in the first water tank 8 may be determined by providing a water level sensor (not shown in FIG. 3) connected to the control unit 3 in the first water tank 8.
- the control unit 3 may perform time control such as supplying water for a predetermined period of time.
- the control unit 3 controls the valve 9 to open, and the supply unit 1 water to the first water tank 8 (step ST12). After supplying water to the first water tank 8, the controller 3 closes the valve 9 (not shown in FIG. 5), and returns to the determination of step ST11.
- step ST11 When the water level in the first water tank 8 is equal to or higher than the predetermined value (step ST11; YES), the control section 3 determines whether the water treatment section 12 is usable.
- Water treatment unit 12 is usable refers to a state in which water treatment unit 12 can remove ionic substances from water. If the water treatment unit 12 cannot be used (step ST13; NO), the control unit 3 performs the regeneration process of the water treatment unit 12 (step ST14).
- the controller 3 controls the valve 9 to close, the valve 10 to open, and the drain valve 13 to open.
- the three-way valve 11 is switched by the control unit 3 so that water is supplied from the supply unit 1 to the first water tank 8, but since the valve 9 is controlled to be closed by the control unit 3, No water is supplied to the first water tank 8 .
- Water is supplied from the supply unit 1 to the water treatment unit 12 through the first pipe 16b.
- the water supplied from the supply unit 1 to the water treatment unit 12 contains ionic substances released from the water treatment unit 12 in the regeneration process.
- Water containing ionic substances released from the water treatment unit 12 is drained from the drain valve 13 .
- the three-way valve 15 is switched so that demineralized water is supplied from the pump 14 to the humidifying section 4 , but since the control section 3 controls the pump 14 to be OFF, no demineralized water is supplied to the humidifying section 4 .
- control unit 3 turns off the DC power supply 120, stops applying voltage or current to the electrodes 123, short-circuits between the electrodes 123, and applies voltage in the opposite direction to the voltage applied during the ion removal step. do After the regeneration process of the water treatment unit 12 is completed, the control unit 3 returns to the determination of step ST13.
- the control unit 3 causes the water treatment unit 12 to desalinate the water or desalted water in the first water tank 8 to generate desalted water (step ST15). At this time, the controller 3 closes the valve 10 and closes the drain valve 13 . The control unit 3 turns on the pump 14 to supply water or desalted water from the first water tank 8 to the water treatment unit 12 . Further, the control unit 3 controls the DC power source 120 to be ON, and the water treatment unit 12 generates desalted water. The desalted water produced by the water treatment unit 12 is supplied to the first water tank 8 and stored therein.
- the control unit 3 confirms whether the desalination by the water treatment unit 12 has elapsed for a predetermined time (step ST16). If the predetermined time has not elapsed (step ST16; NO), the control section 3 continues the desalination by the water treatment section 12 (step ST17) and returns to step ST16.
- step ST16 When the predetermined time has passed (step ST16; YES), the control section 3 carries out the regeneration process of the water treatment section 12 (step ST18). Since the process of step ST18 is the same as the process of step ST14, the description thereof is omitted.
- the control unit 3 confirms whether or not the regeneration process of the water treatment unit 12 has been completed (step ST19), and if the regeneration process of the water treatment unit 12 has not been completed (step ST19; NO), the control unit 3 , the process of regenerating the water treatment unit 12 is continued (step ST20), and the process returns to step ST19.
- the control unit 3 performs completion determination of the regeneration process of the water treatment unit 12 based on the elapsed time of the regeneration process of the water treatment unit 12, for example. Specifically, when the elapsed time of the regeneration process of the water treatment section 12 reaches a predetermined time, the control section 3 determines that the regeneration process of the water treatment section 12 is completed, and terminates the regeneration process. do.
- the elapsed time of the regeneration process of the water treatment unit 12 may be measured by providing a timer or the like in the control unit 3 .
- the “predetermined time” may be set by evaluating the time necessary for regeneration of the water treatment unit 12 by experiments or the like in advance and recording the results in the control unit 3 .
- the elapsed time for the control unit 3 to determine the completion of the regeneration process is obtained by measuring the time change in the voltage or current between the current collectors 122 during the regeneration process of the water treatment unit 12 and recording it in the control unit 3. Alternatively, it may be the time until the current becomes constant or the time until the voltage or current becomes equal to or less than a predetermined value.
- the time measuring unit is, for example, a timer.
- the electrical inspection unit is, for example, a voltmeter that measures the voltage between the current collectors 122 of the water treatment unit 12 .
- the electrical inspection unit is, for example, an ammeter that measures the current flowing between the current collectors 122 .
- control unit 3 detects the completion of the regeneration process of the water treatment unit 12 based on, for example, the voltage between the current collectors 122 of the water treatment unit 12 or the value of the current flowing when the pair of current collectors 122 are short-circuited. carry out the judgment. Specifically, the control unit 3 controls the timing when the voltage or current between the current collectors 122 during the regeneration process of the water treatment unit 12 becomes constant, or the timing when the voltage or current becomes equal to or less than a predetermined value. It is determined that it is time to complete the regeneration process, and the regeneration process is terminated.
- an electrical inspection unit that measures the voltage between the current collectors 122 of the water treatment unit 12 or the current flowing between the current collectors 122 may be connected to the water treatment unit 12 and the control unit 3 .
- the electrical test part is, as mentioned above, for example a voltmeter or an ammeter.
- step ST19 When the regeneration process of the water treatment unit 12 is completed (step ST19; YES), the control unit 3 puts the water treatment unit 12 in a standby state (step ST21). At this time, the controller 3 closes the valve 10 and the drain valve 13 . The control unit 3 also turns off the DC power supply 120 to short-circuit the current collectors 122 . For example, after a predetermined time has elapsed from step ST21, the control unit 3 returns to the determination of step ST1 and repeats the above-described control.
- step ST1 When the operating time of the humidifying unit 4 is equal to or longer than a predetermined time (step ST1; YES), the control unit 3 determines whether the water level in the first water tank 8 is equal to or higher than a predetermined value (step ST22). . When the water level in the first water tank 8 is less than the predetermined value (step ST22; NO), the control unit 3 performs the process of step ST12, that is, supplies water from the supply unit 1 to the first water tank 8. process. After the water level in the first water tank 8 reaches or exceeds a predetermined value in step ST12, the process proceeds to step ST13.
- step ST22 If the water level in the first water tank 8 is equal to or higher than the predetermined value (step ST22; YES), the control unit 3 checks whether there is a history of the water in the first water tank 8 being treated by the water treatment unit 12. Confirm whether or not (step ST23). If the water in the first water tank 8 has a history of being treated by the water treatment unit 12, the first water tank 8 stores desalted water with a lower ion concentration than water. If the water in the first water tank 8 has no history of being treated by the water treatment unit 12 , water is stored in the first water tank 8 .
- step ST23 determines in step ST13, that is, whether the water treatment unit 12 can be used. Make a judgment to confirm although not shown in FIG. 5, the control unit 3 determines that the water treatment unit 12 can be used, desalinates the water or desalted water in the first water tank 8 (step ST15), and After the time has elapsed (step ST16), the control unit 3 proceeds to step ST24.
- step ST23; YES If there is a history that the water in the first water tank 8 has been treated by the water treatment section 12 (step ST23; YES), the control section 3 checks whether the humidification section 4 is operating (step ST24). . When the humidifying unit 4 is not in operation (step ST24; NO), the valves 5 and 9 are controlled to be closed by the control unit 3. Therefore, the control unit 3 performs the processes of steps ST26 and ST27, which will be described later. proceed to
- step ST24 When the humidifying unit 4 is operating (step ST24; YES), the control unit 3 controls the valve 5 to open and the valve 9 to close, so the control unit 3 controls the valve 5 to close. , the valve 9 is controlled to remain closed, and the humidifying section 4 is placed in a standby state (step ST25). Then, the control section 3 proceeds to the processing of steps ST26 and ST27, which will be described later.
- step ST26 the humidifying section 4 is washed.
- the controller 3 keeps the valves 5 and 9 closed and turns the pump 14 ON.
- Demineralized water is supplied from the first water tank 8 to the humidifying section 4 by the pump 14 .
- the three-way valve 11 is switched by the control unit 3 so that water is supplied from the supply unit 1 to the first water tank 8, but since the valve 9 is controlled to be closed by the control unit 3, No water is supplied to the first water tank 8 .
- the control unit 3 confirms whether or not the predetermined time has passed (step ST28), and if the predetermined time has not passed (step ST28; NO), as shown in step ST26, The control unit 3 controls the valves 5 and 9 to be closed and the pump 14 to be kept ON. The cleaning of the humidifying section 4 is continued (step ST29), and the process returns to the judgment of step ST28. If the predetermined time has passed (step ST28; YES), the control unit 3 controls the valves 5 and 9 to keep them closed, and controls the pump 14 to be turned OFF. 4 is placed in a standby state (step ST30). For example, after a predetermined time has elapsed from step ST30, the control unit 3 returns to the determination of step ST1 and repeats the above-described control.
- step ST27 the regeneration process of the water treatment section 12 is performed.
- the controller 3 controls the valve 10 and the drain valve 13 to be open. Further, the control unit 3 turns off the DC power supply 120 to short-circuit the current collectors 122 .
- the control section 3 advances to the determination of step ST19, that is, the determination of whether or not the regeneration process of the water treatment section 12 has been completed. Note that step ST27 may be omitted if the regeneration process of the water treatment unit 12 has been completed at the start of step ST27. Further, even when the regeneration process of the water treatment section 12 has been completed, the control section 3 may perform step ST27.
- ions are desorbed by stopping the application of voltage or current to the electrodes 123 or by short-circuiting between the electrodes 123 without applying a voltage in the opposite direction to the voltage applied during the ion removal step. is desirable.
- the humidifying device 100b cleans the humidifying unit 4 with desalted water having a low ion concentration compared to the case where the humidifying unit 4 is cleaned with water supplied from the supply unit 1, such as tap water. Therefore, scale deposition in the humidifying section 4 can be suppressed.
- the humidifying device 100b since the capacitive deionization method is used in the water treatment unit 12, the application of electricity between the current collectors 122 by the DC power supply 120 and the application of electricity between the current collectors 122 by the DC power supply 120 are stopped. By switching the short circuit between the current collector 122 and the current collector 122 , desalting treatment and regeneration of the water treatment unit 12 can be performed in the water treatment unit 12 . As a result, the humidification unit 4 can be continuously washed with desalted water without the need for a chemical solution or the like to regenerate the water treatment unit 12, and the effect of suppressing scale deposition can be continuously obtained.
- the first water tank 8, the three-way valve 11, the water treatment section 12, the pump 14, the three-way valve 15, and the third pipe 18 constitute a circulation circuit.
- the water in the first water tank 8 can be circulated in the water treatment unit 12, and desalted water with a low ion concentration can be stored in the first water tank 8.
- the supply unit 1 does not have to be one.
- the supply unit 1 may be divided into, for example, one connected to the humidification unit 4 , one connected to the first water tank 8 , and one connected to the water treatment unit 12 .
- the supply unit 1 is divided in this way, the quality of the water supplied to each supply destination can be changed.
- the DC power supply 120 only needs to be able to supply DC electricity, and a DC power supply device, a DC stabilized power supply device, or the like is used. may Also, electricity from an outlet may be converted into direct current by a converter or the like.
- the control unit 3 determines whether or not there is a history of treatment of the water in the first water tank 8, but the conductive A sensor (first sensor) such as a rate meter may be arranged in the first water tank 8 .
- a sensor arranged in the first water tank 8 is connected to the control unit 3, and the control unit 3 determines whether or not the ion concentration is less than a predetermined concentration. However, it may be determined whether or not the water has been desalted in the water treatment unit 12 . In the case of the ion concentration, the ion concentration of the water supplied from the supply unit 1 is maximized, and a concentration lower than the ion concentration of the water may be set as the standard concentration of the desalted water.
- Embodiment 2 an example in which the first water tank 8 is provided has been shown, but when the required amount of water can be covered only by the third pipe 18, only the third pipe 18 is provided between the three-way valve 11 and the three-way valve 15. to form a circulation circuit. Thereby, the humidifier 100b can be made smaller than the humidifier 100b having the first water tank 8 .
- FIG. 6 is a configuration diagram showing a humidifying device 100c according to the third embodiment.
- the humidifying device 100 c includes a supply section 1 , a control section 3 and a humidifying section 4 .
- Humidifier 100 c further includes valve 5 , drain valve 7 , water treatment section 12 , drain valve 13 , valve 19 , valve 20 , fourth pipe 21 , and fifth pipe 22 .
- the humidifying device 100c differs from the humidifying device 100a in that the demineralized water supply unit 2 of the humidifying device 100a includes the valve 19, the water treatment unit 12 and the valve 20 but does not include the valve 6.
- the configurations denoted by the same reference numerals as those in FIGS. 1 and 3 are the same as or correspond to the humidifying devices 100a and 100b, and thus detailed descriptions thereof are omitted.
- the supply unit 1 is connected to the humidification unit 4 and supplies water to the humidification unit 4 .
- a valve 5 is arranged in a pipe connecting the supply unit 1 and the humidification unit 4 .
- the supply unit 1 is connected to the water treatment unit 12 and supplies water to the water treatment unit 12 .
- the fourth pipe 21 is a pipe that connects the supply unit 1 and the water treatment unit 12 .
- a valve 19 is arranged in the fourth pipe 21 .
- the water treatment section 12 is connected to the humidification section 4 and supplies desalted water to the humidification section 4 .
- the fifth pipe 22 is a pipe that connects the water treatment section 12 and the humidification section 4 .
- a valve 20 is arranged in the fifth pipe 22 .
- the control unit 3 is connected to the humidification unit 4, the valve 5, the drain valve 7, the water treatment unit 12, the drain valve 13, the valve 19, and the valve 20, respectively.
- the control unit 3 determines that the humidifying unit 4 needs to be washed, the control unit 3 controls the valves 19 and 20 to open, so that the supply unit 1 supplies water to the water processing unit 12. supply water. Then, the control unit 3 activates the water treatment unit 12 and controls the water treatment unit 12 to desalinate the water supplied from the supply unit 1 . The demineralized water generated in the water treatment section 12 is supplied to the humidification section 4 and the humidification section 4 is washed. After the humidification unit 4 has been washed, the control unit 3 controls the drain valve 13 to open, the valve 19 to open, and the valve 20 to close, thereby executing the regeneration process of the water treatment unit 12 .
- the humidifying device 100c cleans the humidifying unit 4 with desalted water having a low ion concentration, compared to the case where the humidifying unit 4 is cleaned with water supplied from the supply unit 1, such as tap water. Therefore, scale deposition in the humidifying section 4 can be suppressed.
- the humidifying device 100c can be made smaller than the humidifying device 100b.
- FIG. 7 is a configuration diagram showing a humidifying device 100d according to the third embodiment.
- the humidifier 100d is a modification of the humidifier 100c.
- FIG. 7 since the structure which attached
- the humidifying device 100d has a three-way valve 28 on the fourth pipe 21 and a three-way valve 29 on the fifth pipe 22 .
- the three-way valve 28 and the three-way valve 15 are connected by a sixth pipe 30 .
- a second water tank 31 (described later) and a pump 32 are arranged in the sixth pipe 30 .
- the water supplied from the supply unit 1 to the water treatment unit 12 is desalted in the water treatment unit 12 and supplied to the humidification unit 4 . Furthermore, by switching the three-way valve 29 , the desalted water desalted in the water treatment section 12 is supplied to the second water tank 31 . The desalted water supplied to and stored in the second water tank 31 is returned to the water treatment section 12 by the pump 32 . The desalted water supplied from the second water tank 31 to the water treatment unit 12 is again subjected to the ion removal process and supplied to the humidification unit 4 .
- the humidifying device 100d cleans the humidifying unit 4 with desalted water having a low ion concentration, compared to the case where the humidifying unit 4 is cleaned with water supplied from the supply unit 1, such as tap water. Therefore, scale deposition in the humidifying section 4 can be suppressed.
- the humidifying device 100d uses the water treatment unit 12, the sixth pipe 30, the second water tank 31, and the pump 32 to generate demineralized water through circulation processing, and demineralized water with a lower ion concentration can be generated. Scale deposition in the humidifying section 4 can be further suppressed.
- the control unit 3 stores the operating time of the humidifying unit 4 as information related to the operating status of the humidifying unit 4. is equal to or longer than a predetermined time, and based on this, the execution of cleaning of the humidifying unit 4 with demineralized water is controlled. Not limited.
- the operation status of the humidifying unit 4 the number of times of operation of the humidifying unit 4 may be used.
- the number of operation times of the humidifying section 4 is the number of ON and OFF switching times of the humidifying section 4 .
- Control part 3 should just have a device which counts the operation signal and stop signal of humidification part 4, for example.
- the control unit 3 performs control to supply desalted water from the desalted water supply unit 2 to the humidifying unit 4 when at least one of the number of times of the operation signal and the stop signal of the humidifying unit 4 is equal to or greater than a predetermined number of times. .
- the humidifying device 100 can suppress scale deposition in the humidifying section 4 .
- the humidifying device 100 may use the cumulative amount of humidification by the humidifying section 4 as the operation status of the humidifying section 4 .
- the humidifier 100 may be provided with a sensor (second sensor) capable of measuring humidity, and the sensor and the controller 3 may be connected.
- a sensor measures the cumulative amount of humidification by the humidification unit 4 , and when the measured cumulative amount of humidification is equal to or greater than a predetermined cumulative amount of humidification, the control unit 3 desalinates from the demineralized water supply unit 2 to the humidification unit 4 . It controls the supply of salt water.
- the humidifying device 100 can suppress scale deposition in the humidifying section 4 .
- the cumulative amount of humidification is an index that reflects the possibility of actual scale deposition in the humidification section 4, scale deposition in the humidification section 4 can be further suppressed.
- the humidifying device 100 may use the operating time of the humidifying section 4 as the operating status of the humidifying section 4 .
- the control unit 3 performs control to supply desalted water from the desalted water supply unit 2 to the humidifying unit.
- desalted water For example, in Japan, etc., the frequency of necessity of humidification in autumn and winter is high, and the frequency of necessity of humidification in spring and summer is low. In this way, when the required frequency of humidification fluctuates seasonally, even when the required frequency of humidification is low, regular cleaning of the humidification unit 4 can further suppress scale deposition in the humidification unit 4.
- the humidifying section 4 can be kept sanitary.
- control unit 3 controls the supply of water from the supplying unit 1 to the humidifying unit 4 for a predetermined number of times or for a predetermined period of time.
- Control for supplying desalted water to the unit 4 may be performed.
- the number of times demineralized water is generated is reduced, so the number of regeneration steps of the water treatment unit 12 can be suppressed, and power consumption can be reduced.
- the humidifying device 100 may use the operating status of the humidifying section 4 .
- the operation status of the supply unit 1 is the cumulative amount of water supplied from the supply unit 1 to the humidification unit 4 .
- the control unit 3 performs control to supply desalted water from the desalted water supply unit to the humidification unit 4 .
- the humidifying device 100 can suppress scale deposition in the humidifying section 4 .
- the humidifying device 100 may perform a drying operation on the humidifying section 4 by blowing air or the like after the cleaning of the humidifying section 4 is completed.
- the inside of the humidifying unit 4 can be uniformly dried, and the precipitation of scale concentrated in a part of the humidifying unit 4 during the drying process is suppressed. can.
- the current collector 122 and the electrode 123 are each paired, but a plurality of pairs may be provided. Also, there may be a plurality of separators 124 .
- a conductive and flexible material may be used as the current collector 122 .
- a graphite sheet, grafoil, conductive rubber, or a metal sheet and a metal plate sandwiched or coated with these materials may be used.
- a conductive material with a large specific surface area may be used in order to increase the capacitance of the capacitor.
- a material for the electrode 123 activated carbon, porous carbon, porous conductive beads, porous metal, or the like may be used.
- the shape of the conductive material is powdery, granular, fibrous, or the like.
- the outer diameter may be, for example, 100 nm or more and 10 mm or less.
- a thickness of 1 ⁇ m or more and 50 ⁇ m or less may be used.
- a cloth, a filter, or the like formed using a conductive material may be used.
- an outflow prevention member may be arranged in the first pipe 16, the inlet 121, or the outlet 125. As a result, it is possible to prevent members such as electrode materials from flowing out of the water treatment unit 12 .
- the material of the separator 124 for example, a filter paper, a porous film, a non-woven fabric, a foaming agent, or the like, which allows a liquid to pass through but does not allow a conductive material to pass through, and has an electrical insulation property may be used.
- 1 supply unit 2 demineralized water supply unit, 3 control unit, 4 humidification unit, 5, 6, 9, 10, 19, 20 valve, 7, 13 drain valve, 8 first water tank, 11, 15, 28, 29 three-way valve, 12 water treatment section, 14, 32 pump, 16 first pipe, 17 second pipe, 18 third pipe, 21 fourth pipe, 22 fifth pipe, 30 sixth pipe, 31 second water tank, 100 humidifier, 120 DC power supply, 121 inlet, 122 current collector, 123 electrode, 124 separator, 125 Outlet.
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Abstract
Description
図1は、実施の形態1にかかる加湿装置100aを示す構成図である。加湿装置100aは、供給部1と、脱塩水供給部2と、制御部3と、加湿部4とを備える。加湿装置100aは、さらに、バルブ5と、バルブ6と、排水バルブ7とを備える。以下、詳細を説明する。
図3は、実施の形態2にかかる加湿装置100bを示す構成図である。加湿装置100bは、加湿装置100aの脱塩水供給部2が、第一貯水槽8、バルブ9、バルブ10、三方弁11、水処理部12、排水バルブ13、ポンプ14、及び三方弁15を含み、バルブ6を含まない点で、加湿装置100aと異なる。なお、図3において、図1と同一の符号を付した構成は、加湿装置100aと同一又は対応する構成を示しているため、詳細な説明は省略する。
図6は、実施の形態3にかかる加湿装置100cを示す構成図である。加湿装置100cは、供給部1と、制御部3と、加湿部4とを備える。加湿装置100cは、さらに、バルブ5と、排水バルブ7と、水処理部12と、排水バルブ13と、バルブ19と、バルブ20と、第四配管21と、第五配管22とを備える。加湿装置100cは、加湿装置100aの脱塩水供給部2が、バルブ19、水処理部12及びバルブ20を含み、バルブ6を含まない点で、加湿装置100aと異なる。なお、図6において、図1及び図3と同一の符号を付した構成は、加湿装置100a及び加湿装置100bと同一又は対応する構成を示しているため、詳細な説明は省略する。
5、6、9、10、19、20 バルブ、7、13 排水バルブ、8 第一貯水槽、
11、15、28、29 三方弁、12 水処理部、14、32 ポンプ、
16 第一配管、17 第二配管、18 第三配管、21 第四配管、22 第五配管、
30 第六配管、31 第二貯水槽、100 加湿装置、120 直流電源、
121 流入口、122 集電体、123 電極、124 セパレータ、
125 流出口。
Claims (13)
- 空気中に水を気化させる加湿部と、
前記加湿部に前記水を供給する供給部と、
前記加湿部に脱塩水を供給する脱塩水供給部と、
前記供給部から前記加湿部への前記水の供給を制御するとともに、前記加湿部の運転状況又は前記供給部の運転状況が予め定められた基準を満たした場合に、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う制御部と、
を備える加湿装置。 - 前記加湿部の運転状況は、前記加湿部の運転時間であり、
前記加湿部の運転時間が、予め定められた運転時間以上である場合、前記制御部は、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う、
請求項1に記載の加湿装置。 - 前記加湿部の運転状況は、前記加湿部の運転時間であり、
前記加湿部が、予め定められた運転時間以上運転していない場合、前記制御部は、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う、
請求項1に記載の加湿装置。 - 前記制御部は、前記供給部から前記加湿部へ前記水を供給する制御を予め定められた回数又は予め定められた時間行った後、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う、
請求項3に記載の加湿装置。 - 前記加湿部の運転状況は、前記加湿部の運転回数であり、
前記加湿部の運転信号及び停止信号の回数の少なくともいずれかが、予め定められた回数以上である場合、前記制御部は、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う、
請求項1に記載の加湿装置。 - 前記加湿部の運転状況は、前記加湿部の累計加湿量であり、
測定された前記加湿部の累計加湿量が、予め定められた累計加湿量以上である場合、前記制御部は、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う、
請求項1に記載の加湿装置。 - 前記供給部の運転状況は、前記供給部から前記加湿部へ供給した累計供給量であり、
前記累計供給量に基づき推定されたイオン量が、予め定められたイオン量以上である場合、前記制御部は、前記脱塩水供給部から前記加湿部へ前記脱塩水を供給する制御を行う、
請求項1に記載の加湿装置。 - 前記脱塩水供給部は、前記水のイオン性物質を除去し、前記脱塩水を生成する水処理部を有する、
請求項1~7のいずれか一項に記載の加湿装置。 - 前記水処理部は、前記供給部と接続され、
前記供給部から供給される前記水中の前記イオン性物質を除去する、
請求項8に記載の加湿装置。 - 前記水処理部及び前記加湿部に接続され、前記水処理部で前記イオン性物質が除去された前記脱塩水を貯水する第一貯水槽をさらに備え、
前記第一貯水槽は、貯水された前記脱塩水を前記加湿部へ供給する、
請求項8又は9に記載の加湿装置。 - 前記水処理部に接続され、前記水処理部で生成された前記脱塩水を貯水するとともに、貯水された前記脱塩水を前記水処理部へ返送する第二貯水槽をさらに備え、
前記水処理部は、前記脱塩水を前記加湿部へ供給する、
請求項8又は9に記載の加湿装置。 - 前記水処理部は、前記脱塩水を生成するための電極を有し、
前記水処理部は、前記制御部の制御に基づいて、電圧を印加された前記電極に前記水中の前記イオン性物質を吸着させ、吸着した前記イオン性物質を、前記電極に対する電圧又は電流の印加の停止、前記電極間の短絡、及び前記脱塩水を生成するときに前記電極に対して印加した電圧と逆方向の電圧の印加の少なくともいずれかを行なうことにより前記水中に放出する、
請求項8~11のいずれか一項に記載の加湿装置。 - 前記加湿部は、前記脱塩水が供給された後、乾燥運転が実施される、
請求項1~12のいずれか一項に記載の加湿装置。
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