WO2011045998A1 - 浄水器 - Google Patents
浄水器 Download PDFInfo
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- WO2011045998A1 WO2011045998A1 PCT/JP2010/065701 JP2010065701W WO2011045998A1 WO 2011045998 A1 WO2011045998 A1 WO 2011045998A1 JP 2010065701 W JP2010065701 W JP 2010065701W WO 2011045998 A1 WO2011045998 A1 WO 2011045998A1
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- Prior art keywords
- water
- turbidity
- valve
- unit
- detected
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/008—Control or steering systems not provided for elsewhere in subclass C02F
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/005—Processes using a programmable logic controller [PLC]
- C02F2209/006—Processes using a programmable logic controller [PLC] comprising a software program or a logic diagram
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/11—Turbidity
Definitions
- the present invention relates generally to a water purifier, and more particularly to a water purifier that purifies raw water using a filter medium.
- Patent Document 1 describes an aggregation and precipitation system in which aggregation and precipitation apparatuses that aggregate and precipitate suspended solids in raw water are arranged in two stages in series.
- the coagulation / sedimentation system is provided with a bypass line capable of selectively switching between the one-stage process and the two-stage process according to the turbidity of the raw water.
- this flocculating sedimentation system when the turbidity of the raw water is high, the raw water is subjected to a two-stage treatment in which it is treated by a two-stage flocculation settling apparatus.
- the turbidity of the raw water is low, the raw water is subjected to a one-stage treatment in which it is treated by a one-stage flocculant settling apparatus.
- Patent Document 1 JP-A-2002-58907
- the objective of this invention is providing the water purifier which can prevent the fall of the water purification performance of the filter medium by the turbidity of sudden raw water.
- the water purifier according to the present invention includes a water flow passage, a filter medium, a turbidity detection unit, and a switching unit.
- a water passage is for distributing water.
- the filter medium is disposed in the water flow passage to pass the raw water for purification.
- the turbidity detection unit detects the turbidity of the raw water flowing through the water passage.
- the switching unit switches between a filtered state in which the water flowing through the water passage passes through the filter medium, and a non-filtered state in which the water passing through the water passage does not pass through the filter medium.
- the switching unit switches to the filtration state when the turbidity of the raw water detected by the turbidity detecting unit is less than or equal to the predetermined turbidity, and the turbidity of the raw water detected by the turbidity detecting unit is from the predetermined turbidity If it is large, it is configured to switch to the non-filtration state.
- the switching unit switches the water purifier to the filtered state, whereby the raw water flowing through the water passage passes through the filter medium, It is made clean water.
- the switching unit switches the water purifier to the non-filtering state, whereby the water passing through the water passage passes through the filter medium. I will not do.
- the water purifier according to the present invention includes a control unit that controls the switching unit.
- the control unit switches to the filtration state, and the turbidity of the raw water detected by the turbidity detection unit is higher than the predetermined turbidity If it is larger, the switching unit is controlled to switch to the non-filtration state.
- the water purifier according to the present invention comprises a reservoir for storing raw water.
- the reservoir is preferably disposed between the filter medium and a position at which the turbidity is detected by the turbidity detector in the water flow passage.
- the water purifier according to the present invention includes a water amount detection unit that detects the amount of water passing through the filter medium, and a cleaning unit that cleans the filter medium.
- the cleaning unit cleans the filter medium when the product of the value obtained by integrating the turbidity detected by the turbidity detecting unit with time and the value obtained by integrating the water amount detected by the water amount detecting unit with time is larger than a predetermined value.
- it is configured to
- the water purifier which can prevent the fall of the water purification performance of the filter medium by the sudden turbidity of raw water can be provided.
- the water purifier 1 includes a turbidity sensor 110, a silver ion eluting agent 120, a prefilter 131, and an activated carbon filter 132 as a turbidity detection unit disposed in the water flow passage 100. And a suspended matter removal filter 133 as a filter medium, a tank 140, a pump 150, and an air introduction unit 160.
- the water purifier 1 includes a control unit 170, a water level sensor 143, and a notification unit 144 outside the water flow passage 100.
- a first water purification channel introduction valve 101 In the water flow passage 100, a first water purification channel introduction valve 101, a drainage valve 102, a second water purification channel introduction valve 103, a middle water valve 104, a water purification valve 105, and a backwash valve 106 are also arranged. There is.
- the upstream end of the water passage 100 is connected to an external pipe that supplies raw water such as tap water.
- Raw water may be well water or river water in addition to tap water.
- the turbidity sensor 110 includes, for example, a light emitting unit and a light receiving unit, and is configured to detect turbidity of water by detecting light scattering or light transmission.
- the water passage 100 is connected to two pipes.
- the first water purification channel introduction valve 101 is disposed in one of the pipes, and the drainage valve 102 is disposed in the other pipe.
- the first water purification channel introduction valve 101 and the drainage valve 102 are an example of a switching unit.
- the first water purification channel introduction valve 101 and the drainage valve 102 are opened and closed by receiving a control signal from the control unit 170 as described later.
- the first water purification channel introduction valve 101 and the drainage valve 102 are assumed to be solenoid valves.
- a silver ion eluting agent 120 is disposed in the pipe in which the first water purification channel introduction valve 101 is disposed.
- the silver ion eluting agent 120 for example, a polyethylene pellet into which silver ion eluting zeolite is kneaded is used. When water contacts such a silver ion eluting agent 120, silver ions are eluted from the silver ion eluting agent 120 into water.
- a prefilter 131 is connected to the downstream side of the silver ion eluting agent 120.
- the pre-filter 131 is relatively made of a coarse non-woven fabric.
- the water passing through the prefilter 131 is filtered by the prefilter 131 to remove relatively large impurities in the water.
- An activated carbon filter 132 is connected to the downstream side of the prefilter 131.
- the activated carbon filter 132 is made of activated carbon and adsorbs the organic matter in the water and removes it from the water.
- the turbidity removal filter 133 is disposed downstream of the activated carbon filter 132.
- the turbidity removal filter 133 is an example of a filter medium.
- the suspended matter removal filter 133 is formed of a relatively fine non-woven fabric.
- the turbidity removal filter 133 may be constituted by a membrane.
- the water passage 100 is connected to two pipes.
- the second water purification channel introduction valve 103 is disposed in one of the pipes, and the intermediate water valve 104 is disposed in the other pipe.
- the second water purification channel introduction valve 103 is opened and closed by receiving a control signal from the control unit 170 as described later.
- the flush valve 104 is opened and closed by the user.
- the second water purification passage introduction valve 103 is assumed to be a solenoid valve.
- a tank 140 is connected to the piping in which the second water purification channel introduction valve 103 is disposed.
- the tank 140 accommodates a UV (ultraviolet) irradiator 141 and a bacteria sensor 142.
- the UV irradiator 141 irradiates the water stored in the tank 140 with ultraviolet light.
- the bacteria sensor 142 detects the number of bacteria in the water in the tank 140 and transmits a signal to the control unit 170.
- the water level sensor 143 detects the water level in the tank 140 and transmits a signal to the control unit 170.
- the notification unit 144 sounds an alarm and uses the fact that the number of bacteria in the tank 140 is equal to or more than the predetermined number. Alert the person.
- the pump 150 delivers the water stored in the tank 140.
- the pump 150 is configured to be driven when the backwash valve 106 described later is opened.
- the water flow passage 100 is connected to two pipes.
- the clean water valve 105 is disposed in one of the pipes, and the backwash valve 106 is disposed in the other pipe.
- the clean water valve 105 is opened and closed by the user.
- the backwash valve 106 is opened and closed by receiving a control signal from the control unit 170 as described later.
- the backwash valve 106 is a solenoid valve.
- the piping in which the water purification valve 105 is disposed is in communication with the outside of the water purifier 1.
- the air introduction unit 160 is connected to the pipe in which the backwash valve 106 is disposed.
- the end opposite to the backwash valve 106 is connected to the turbidity removal filter 133.
- the air introduction unit 160 supplies air to the water delivered from the pump 150 to the turbidity removal filter 133. By supplying air to the water delivered by the pump 150, the speed of the water flow can be increased even with the same amount of water.
- the water supplied with air by the air introduction unit 160 is supplied to the turbidity removal filter 133.
- the water supplied to the turbidity removal filter 133 is drained from the water purifier 1 without being returned to the tank 140.
- the water purifier 1 has a turbidity sensor 110, a bacteria sensor 142, a water level sensor 143, a first water purification passage introduction valve 101, a drainage valve 102, and a second water purification passage introduction valve 103 as control related components. And a backwash valve 106 and a notification unit 144.
- the turbidity sensor 110, the bacteria sensor 142, and the water level sensor 143 transmit signals to the control unit 170.
- control unit 170 Based on the signals received from the turbidity sensor 110, the bacteria sensor 142, and the water level sensor 143, the control unit 170 performs the backwashing of the first water purification channel introduction valve 101, the drainage valve 102, the second water purification channel introduction valve 103, Control signals are sent to the valve 106 and the notification unit 144.
- the control unit 170 closes the first water purification channel introduction valve 101 and drains it.
- a control signal is sent to the first water purification channel introduction valve 101 and the drainage valve 102 so as to open the valve 102.
- the state where the first water purification channel introduction valve 101 is closed and the drain valve 102 is opened is referred to as a non-filtration state.
- the control unit 170 opens the first water purification channel introduction valve 101 and closes the drainage valve 102 when the turbidity of the raw water detected by the turbidity sensor 110 is a predetermined value, for example, 2 NTU or less. Control signals are sent to the passage introduction valve 101 and the drainage valve 102.
- the state where the first water purification channel introduction valve 101 is opened and the drain valve 102 is closed is referred to as a filtration state.
- the turbidity value when switching between the non-filtered state and the filtered state is adjusted depending on the environment in which the water purifier 1 is used, the type of filter medium, and the like. For example, when the turbidity of the raw water is usually 0.01 NTU and the turbidity of the raw water is larger than 1.0 NTU, the turbidity sensor 110 is not allowed to pass through the turbidity removal filter 133. It switches to the filtration state when the turbidity is 1.0 NTU or less, and switches to the non-filtration state when the turbidity detected by the turbidity sensor 110 is larger than 1.0 NTU.
- the value of turbidity when switching between the non-filtered state and the filtered state is determined based on the value of turbidity detected by the turbidity sensor 110 within a predetermined period when the water purifier 1 operates. It is also good.
- the control unit 170 stores the turbidity value detected by the turbidity sensor 110 within the predetermined period, and calculates the average value of the stored turbidity values. Determine the standard deviation.
- the control unit 170 determines (average value + standard deviation ⁇ 2) using the average value and the standard deviation of the determined turbidity, and sets this as a predetermined value.
- the control unit 170 switches to the non-filtering state, and the raw water is suspended by the turbidity removal filter 133. Do not pass through.
- the control unit 170 switches to the filtration state and the raw water is a turbidity removal filter Make it pass 133.
- the control unit 170 transmits a control signal to the notification unit 144, and the number of bacteria in the tank 140 is a predetermined number. The user is notified that the above is true.
- the control unit 170 opens the first water purification channel introduction valve 101 and the second water purification channel introduction valve 103, Control signals are transmitted to the first water purification channel introduction valve 101 and the second water purification channel introduction valve 103.
- a control signal is transmitted to the first water purification path introduction valve 101 so as to close the first water purification path introduction valve 101 .
- control unit 170 transmits a control signal to the backwash valve 106, for example, at fixed time intervals, and opens and closes the backwash valve 106. Opening and closing of the backwash valve 106 may be interlocked with a signal received by the control unit 170 from the bacteria sensor 142 or the water level sensor 143.
- the pump 150 (FIG. 1) is driven.
- the turbidity sensor 110 detects the turbidity of the raw water.
- a signal is transmitted from the turbidity sensor 110 to the control unit 170, and the control unit 170 closes the first water purification passage introduction valve 101, and the drainage valve Control to open 102.
- the water whose turbidity is larger than a predetermined turbidity is discharged to the outside of the water purifier 1 through the drainage valve 102 without flowing into the water passage 100 downstream of the first water purification channel introduction valve 101.
- the water in which the turbidity larger than the predetermined turbidity is detected is discharged from the water purifier 1 without passing through the turbidity removal filter 133 or the like.
- the control unit 170 controls the first purified water Control is made to open the passage introduction valve 101 and close the drainage valve 102. Water having a predetermined turbidity or less passes through the first water purification channel introduction valve 101 and enters the water flow passage 100 downstream of the first water purification channel introduction valve 101.
- the water passes through the silver ion eluting agent 120. At this time, silver ions are eluted in water.
- the water purifier 1 is not used and the raw water is not supplied into the water purifier 1, if there is water remaining inside the water purifier 1, the silver ions are gradually eluted in the water. Can suppress the growth of bacteria in
- the water then passes through the prefilter 131.
- the pre-filter 131 By passing through the pre-filter 131, relatively large impurities are removed from the water.
- the water then passes through the activated carbon filter 132.
- the organic matter in the water is adsorbed onto the activated carbon and removed from the water.
- the water then passes through the turbidity removal filter 133.
- the turbidity removal filter 133 By passing through the turbidity removal filter 133, relatively small impurities in the water are removed.
- the generated purified water is stored in the tank 140.
- the second water purification channel introduction valve 103 is opened, and the water passing through the turbid material removal filter 133 flows into the tank 140 Do.
- the water stored in the tank 140 is irradiated with ultraviolet light by the UV irradiator 141 and is sterilized.
- the notification unit 144 notifies the user that the number of bacteria in the tank 140 is equal to or more than the predetermined number.
- the notification unit 144 When the notification unit 144 does not notify the user, when the user opens the water purification valve 105, the water purifier 1 discharges the purified water through the water purification valve 105. The user can use clean water.
- the user can continue the sterilization by the UV irradiator 141 for a longer time.
- the user can open the water purification valve 105 even if notification by the notification unit 144 is made. In this case, it is preferable to use the water discharged from the water purifier 1 for washing or the like instead of using it for eating and drinking.
- the backwash valve 106 is opened at predetermined time intervals, the pump 150 is driven, and the suspended substance removal filter 133 is cleaned.
- the turbidity removal filter 133 can be cleaned by supplying the turbidity removal filter 133 with UV-irradiated, sterilized and purified water in the tank 140 from the direction opposite to the normal water flow. .
- the water from which the turbidity removal filter 133 has been washed is discharged from the water purifier 1 as it is.
- the user can open the intermediate water valve 104 and allow the water that has passed through the second water purification channel introduction valve 103 to be discharged from the water purifier 1 as it is without being stored in the tank 140.
- the water that is not stored in the tank 140 and discharged as it is out of the water purifier 1 is defined as medium water.
- Middle water is purified by the turbidity removal filter 133 but is not sterilized by ultraviolet irradiation. Therefore, it is desirable not to use brackish water as a beverage but to use it for washing and the like.
- the first water purification channel introduction valve 101 and the drainage valve 102 have been described as being electromagnetic valves, the first water purification channel introduction valve 101 and the drainage valve 102 may be other valves. Good.
- the first water purification channel introduction valve 101 and the drainage valve 102 may be configured to open and close according to the transmission amount of light detected by the turbidity sensor 110, that is, the brightness in the water passage 100.
- a light driven valve opened by light irradiation can be used as the drain valve 102.
- the light driven valve includes, for example, a movable film formed of a light responsive material.
- the movable film formed by the photoresponsive substance reversibly deforms according to the amount of light irradiated.
- the light drive valve used for the drainage valve 102 is configured to be opened when receiving scattered light larger than a predetermined amount, and to be closed when receiving scattered light smaller than the predetermined amount.
- the drainage valve 102 constituted by the light driving valve at a position for receiving scattered light in the water flow passage 100, the drainage valve 102 when the turbidity of the raw water in the water passage 100 is larger than a predetermined value. Can be opened and the drainage valve 102 can be closed when it is below a predetermined value.
- a light drive valve can be used similarly as the first water purification passage introduction valve 101.
- the first water purification channel introduction valve 101 is disposed at a position where the transmitted light in the water flow passage 100 is received.
- the transmitted light in the water passage 100 decreases as the turbidity of the raw water in the water passage 100 rises. Therefore, a light driven valve configured to be opened when receiving transmitted light of a predetermined amount or more and closed when receiving transmitted light smaller than the predetermined amount is used as the first water purification passage introduction valve 101 .
- the first water purification channel introduction valve 101 is opened when the turbidity of the raw water in the water flow passage 100 is less than or equal to the predetermined value, and the first water purification channel introduction valve is larger than the predetermined value. 101 can be closed.
- the first water purification channel introduction valve 101 and the drainage valve 102 are configured as described above, the first water purification channel introduction valve 101 and the drainage valve 102 are opened and closed without the control unit 170. For example, if the brightness in the water flow passage 100 is brighter than the brightness in the water flow passage 100 when the turbidity sensor 110 detects turbidity of 2 NTU or less, the first state is switched to the filtration state. The water purification channel introduction valve 101 is opened, and the drainage valve 102 is closed.
- the first water purification channel introduced The valve 101 is closed and the drain valve 102 is opened.
- the first water purification channel introduction valve 101 and the drainage valve 102 are controlled via the control unit 170 to switch between the filtration state and the non-filtration state.
- a valve having a simple configuration can be used as the water purification channel introduction valve 101 and the drainage valve 102.
- the water purifier 1 includes the water passage 100, the suspended matter removal filter 133, the turbidity sensor 110, the first water purification passage inlet valve 101, and the drainage valve 102.
- the water passage 100 is for circulating water.
- the turbidity removal filter 133 is disposed in the water passage 100 and passes raw water to make it purified.
- the turbidity sensor 110 detects the turbidity of the raw water flowing through the water passage 100.
- the first water purification channel introduction valve 101 and the drainage valve 102 are in a filtered state in which the water flowing through the water passage 100 passes through the turbidity removal filter 133, and the water passing through the water passage 100 does not pass through the turbidity removal filter 133. Switch between the filtration state.
- the first water purification channel introduction valve 101 and the drainage valve 102 are switched to the filtration state when the turbidity of the raw water detected by the turbidity sensor 110 is less than a predetermined turbidity, and the raw water detected by the turbidity sensor 110
- the filter is configured to switch to a non-filtered state when the turbidity of the pigment is greater than a predetermined turbidity.
- the first water purification channel introduction valve 101 and the drainage valve 102 switch the water purifier 1 to the filtered state, whereby the water passage 100 The raw water flowing through the water passes through the turbidity removal filter 133 and is purified.
- the first water purification channel introduction valve 101 and the drainage valve 102 switch the water purifier 1 to the non-filtering state, Water passing through the water passage 100 does not pass through the turbidity removal filter 133.
- the raw water having a large turbidity suddenly flows into the water purifier 1, the raw water having a turbidity larger than the predetermined turbidity is prevented from passing through the turbidity removal filter 133.
- the large amount of raw water can prevent the turbidity removal filter 133 from clogging.
- the water purifier 1 capable of preventing the decrease in the water purification performance of the turbid material removal filter 133 due to the sudden turbidity of the raw water.
- the water purifier 1 of 1st Embodiment is provided with the control part 170 which controls the 1st water purification path introduction valve 101 and the drainage valve 102. As shown in FIG. If the turbidity of the raw water detected by the turbidity sensor 110 is equal to or less than a predetermined turbidity, the control unit 170 switches to the filtration state, and the turbidity of the raw water detected by the turbidity sensor 110 is a predetermined turbidity If it is larger, the first water purification channel introduction valve 101 and the drainage valve 102 are controlled to switch to the non-filtration state.
- a heater (not shown) as a heating unit and a cooling device (not shown) as a cooling unit may be installed between the pump 150 and the water purification valve 105.
- the user can adjust the temperature of the purified water discharged through the water purification valve 105 by adjusting the operation of the heater or the cooling device.
- the water purifier 2 as another example of the first embodiment is connected directly to the raw water tank 220 where the raw water is stored, instead of supplying the raw water directly into the water passage 200 from the tap. It may be As described above, when raw water is supplied from the raw water tank 220 into the water purifier 2, the pump 210 is disposed between the raw water tank 220 and the turbidity sensor 110.
- the water purifier 3 of the second embodiment differs from the water purifier 1 of the first embodiment in that the water purifier 3 of the second embodiment includes a buffer unit 310 as a storage unit.
- the buffer unit 310 is disposed in the water flow passage 300 between the turbidity sensor 110 and the first water purification channel introduction valve 101.
- the other configuration of the water purifier 3 is the same as that of the water purifier 1 of the first embodiment.
- the buffer portion 310 may have any shape as long as it is configured to temporarily store water, and may be, for example, a cylindrical container or a spirally wound tubular shape. It may be formed or may simply be a long tube. The length of time for which raw water is retained in the buffer unit 310 can be adjusted according to the shape, diameter, and length of the buffer unit 310.
- the turbidity sensor 110 detects the turbidity of the raw water.
- a signal is transmitted from the turbidity sensor 110 to the control unit 170.
- the control unit 170 transmits control signals to the first water purification passage introduction valve 101 and the drainage valve 102 so as to close the first water purification passage introduction valve 101 and open the drainage valve 102.
- raw water whose turbidity is detected by the turbidity sensor 110 is temporarily stored in the buffer unit 310.
- Raw water is temporarily stored in the buffer unit 310, and then flows downstream in the water passage 300.
- the turbidity sensor 110 transmits a signal to the control unit 170, and the control unit 170 transmits a control signal to the first water purification channel introduction valve 101 and the drainage valve 102, and the first water purification channel introduction valve 101 is closed. It may take some time before it is opened. However, since raw water is temporarily stored in the buffer section 310 on the upstream side of the first water purification channel introduction valve 101, turbidity does not occur even if it takes a long time to close the first water purification channel introduction valve 101. Large raw water can be prevented from passing through the first water purification channel introduction valve 101.
- the water purifier 3 includes the buffer unit 310 for storing raw water.
- the buffer unit 310 is disposed between the position where turbidity is detected by the turbidity sensor 110 in the water flow passage 300 and the turbidity removal filter 133.
- the buffer unit 310 between the position where the turbidity is detected by the turbidity sensor 110 and the turbidity removal filter 133 in the water passage 300, the water whose turbidity is detected by the turbidity sensor 110 is While passing through the turbidity removal filter 133, it is temporarily stored in the buffer unit 310.
- the water purifier 4 of the third embodiment differs from the water purifier 1 of the first embodiment in that the water purifier 4 of the third embodiment includes a flow rate sensor 410 as a water quantity detection unit.
- the flow rate sensor 410 is disposed between the first water purification passage introduction valve 101 and the silver ion eluting agent 120 in the water passage 400.
- the flow rate sensor 410 detects the flow rate of the raw water that has passed through the first water purification path introduction valve 101 in the water flow passage 400, and transmits a signal to the control unit 170.
- the turbidity sensor 110 detects the turbidity of the raw water flowing in the water passage 400 and transmits a signal to the control unit 170.
- the pump 150, the backwash valve 106, and the air introduction unit 160 constitute a cleaning unit.
- the backwash valve 106 is opened and closed based on a signal received from the control unit 170.
- the control unit 170 obtains the product of the turbidity and the amount of water based on the signal received from the turbidity sensor 110 and the signal received from the flow sensor 410. When the product of the determined turbidity and the amount of water is larger than a predetermined value, the control unit 170 drives the pump 150 and transmits a control signal to the backwash valve 106 so as to open the backwash valve 106. .
- the other configuration of the water purifier 4 of the third embodiment is the same as that of the water purifier 1 of the first embodiment.
- the turbidity sensor 110 detects the turbidity of the raw water flowing in the water passage 400 and transmits a signal to the control unit 170.
- the raw water flowing through the first water purification channel introduction valve 101 and flowing into the turbidity removal filter 133 passes the flow sensor 410.
- the flow rate sensor 410 detects the amount of raw water that has passed through the first water purification passage introduction valve 101 in the water flow passage 400, and transmits a signal to the control unit 170.
- the control unit 170 integrates the turbidity detected by the turbidity sensor 110 in time based on the signal received from the turbidity sensor 110. In addition, the control unit 170 integrates the flow rate detected by the flow rate sensor 410 with time based on the signal received from the flow rate sensor 410. In the third embodiment, the control unit 170 integrates each of the detected turbidity and the flow rate at the time elapsed after the turbidity removal filter 133 is backwashed.
- the control unit 170 obtains a product of the value obtained by integrating the turbidity by time and the value obtained by integrating the flow by time. If the determined product is larger than a predetermined value, the control unit 170 drives the pump 150 and transmits a control signal to the backwash valve 106 so as to open the backwash valve 106.
- the pump 150 When the pump 150 is driven and the backwashing valve 106 is opened, the water in the tank 140 passes through the pump 150, the backwashing valve 106 and the air inlet 160, causing turbidity from the reverse direction of the normal water flow. It flows into the quality removal filter 133, and backwashing of the turbidity removal filter 133 is performed.
- the purified water used for backwashing is discharged from the water purifier 4 as it is.
- the water purifier 4 includes the flow rate sensor 410 for detecting the amount of water passing through the suspended matter removal filter 133, the backwash valve 106 for cleaning the suspended matter removal filter 133, and the air introducing unit 160. Equipped with The backwash valve 106 and the air introduction unit 160 have a product of a value obtained by integrating the turbidity detected by the turbidity sensor 110 with respect to time and a value obtained by integrating the amount of water detected by the flow sensor 410 with time. Is also configured to clean the turbidity removal filter 133 if it is too large.
- the present invention is useful for a water purifier that purifies raw water using a filter medium, since it can provide a water purifier capable of preventing a decrease in the water purification performance of the filter medium due to sudden turbidity of the raw water.
- 1, 2, 3, 4 water purifier, 100, 200, 300, 400: water flow passage, 101: first water purification channel introduction valve, 102: drainage valve, 106: backwashing valve, 110: turbidity sensor, 133: Turbidity removal filter, 150: pump, 160: air inlet, 310: buffer, 410: flow sensor.
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Abstract
Description
図1に示すように、第1実施形態の浄水器1は、通水路100に配置される濁度検知部として濁度センサ110と、銀イオン溶出剤120と、プレフィルタ131と、活性炭フィルタ132と、濾材として濁質除去フィルタ133と、タンク140と、ポンプ150と、空気導入部160とを備える。また、浄水器1は、通水路100の外部に、制御部170と、水位センサ143と、報知部144とを備える。通水路100にはまた、第1浄水路導入弁101と、排水弁102と、第2浄水路導入弁103と、中水弁104と、浄水弁105と、逆洗弁106とが配置されている。通水路100の上流側の端部は、水道水などの原水を供給する外部の配管に接続されている。なお、原水は、水道水の他、井戸水や河川水であってもよい。
図4に示すように、第2実施形態の浄水器3が第1実施形態の浄水器1と異なる点としては、第2実施形態の浄水器3は、貯留部としてバッファ部310を備える。バッファ部310は、通水路300において、濁度センサ110と第1浄水路導入弁101との間に配置されている。浄水器3のその他の構成は、第1実施形態の浄水器1と同様である。
図5に示すように、第3実施形態の浄水器4が第1実施形態の浄水器1と異なる点としては、第3実施形態の浄水器4は、水量検知部として流量センサ410を備える。流量センサ410は、通水路400内において第1浄水路導入弁101と銀イオン溶出剤120との間に配置されている。流量センサ410は、通水路400において第1浄水路導入弁101を通過した原水の流量を検知して、制御部170に信号を送信する。第1実施形態の浄水器1と同様に、濁度センサ110は、通水路400中を流通する原水の濁度を検知して、制御部170に信号を送信する。
Claims (4)
- 水を流通させるための通水路(100,300)と、
前記通水路(100,300)に配置されて原水を通過させて浄水にする濾材(133)と、
前記通水路(100,300)を流通する原水の濁度を検知する濁度検知部(110)と、
前記通水路(100,300)を流通する水が前記濾材(133)を通過する濾過状態と、前記通水路(100,300)を通過する水が前記濾材(133)を通過しない非濾過状態とを切り替える切替部(101,102)とを備え、
前記切替部(101,102)は、
前記濁度検知部(110)によって検知される原水の濁度が所定の濁度以下である場合には前記濾過状態に切り替え、前記濁度検知部(110)によって検知される原水の濁度が所定の濁度より大きい場合には非濾過状態に切り替えるように構成されている、
浄水器(1,2,3,4)。 - 前記切替部(101,102)を制御する制御部(170)を備え、
前記制御部(170)は、前記濁度検知部(110)によって検知される原水の濁度が所定の濁度以下である場合には前記濾過状態に切り替え、前記濁度検知部(110)によって検知される原水の濁度が所定の濁度より大きい場合には非濾過状態に切り替えるように前記切替部(101,102)を制御する、
請求項1に記載の浄水器(1,2,3,4)。 - 原水を貯留するための貯留部(310)を備え、
前記貯留部(310)は、前記通水路(300)において前記濁度検知部(110)によって濁度が検知される位置と、前記濾材(133)との間に配置される、
請求項1に記載の浄水器(3)。 - 前記濾材(133)を通過する水量を検知する水量検知部(410)と
前記濾材(133)を洗浄する洗浄部(106,160)とを備え、
前記洗浄部(106,160)は、
前記濁度検知部(110)によって検知される濁度を時間で積分した値と前記水量検知部(410)によって検知される水量を時間で積分した値との積が所定の値よりも大きい場合に前記濾材(133)を洗浄するように構成されている、
請求項1に記載の浄水器(4)。
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JP5897267B2 (ja) * | 2011-05-02 | 2016-03-30 | 株式会社 シリコンプラス | 浄水器 |
CN106274252A (zh) * | 2015-05-29 | 2017-01-04 | 倪国森 | 全自动画笔洗水过滤机 |
CN107966966A (zh) * | 2017-11-20 | 2018-04-27 | 上海斐讯数据通信技术有限公司 | 一种基于水质检测的用水管理控制方法及系统 |
JPWO2021095614A1 (ja) * | 2019-11-11 | 2021-05-20 | ||
CN112850983A (zh) * | 2020-12-30 | 2021-05-28 | 佛山市雅洁源科技股份有限公司 | 一种医院智能中央分质供水系统 |
CN112591964A (zh) * | 2020-12-30 | 2021-04-02 | 佛山市雅洁源科技股份有限公司 | 一种医院应急供水系统 |
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JPS60225686A (ja) * | 1984-04-23 | 1985-11-09 | Hitachi Ltd | 浄水場の活性炭注入制御方法 |
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JP2002058907A (ja) * | 2000-08-22 | 2002-02-26 | Japan Organo Co Ltd | 凝集沈澱システム |
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