EP4117801A1 - Filter head and extension kit for a filter head - Google Patents
Filter head and extension kit for a filter headInfo
- Publication number
- EP4117801A1 EP4117801A1 EP21705906.2A EP21705906A EP4117801A1 EP 4117801 A1 EP4117801 A1 EP 4117801A1 EP 21705906 A EP21705906 A EP 21705906A EP 4117801 A1 EP4117801 A1 EP 4117801A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter head
- filter
- candle
- housing
- flow meter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 94
- 230000005540 biological transmission Effects 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims description 17
- 238000003780 insertion Methods 0.000 claims description 4
- 230000037431 insertion Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 1
- 239000000203 mixture Substances 0.000 abstract 1
- 238000005342 ion exchange Methods 0.000 description 16
- 239000000463 material Substances 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 6
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000005259 measurement Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 239000012141 concentrate Substances 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000011010 flushing procedure Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 239000012528 membrane Substances 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 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 1
- 241000894006 Bacteria Species 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 229910001424 calcium ion Inorganic materials 0.000 description 1
- 238000011088 calibration curve Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 235000012171 hot beverage Nutrition 0.000 description 1
- -1 hydrogen Chemical class 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 229910001425 magnesium ion Inorganic materials 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/603—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by flow measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
- B01D29/608—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration by temperature measuring
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/143—Filter condition indicators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/14—Safety devices specially adapted for filtration; Devices for indicating clogging
- B01D35/153—Anti-leakage or anti-return valves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/30—Filter housing constructions
-
- 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
- C02F1/42—Treatment of water, waste water, or sewage by ion-exchange
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/30—Filter housing constructions
- B01D2201/301—Details of removable closures, lids, caps, filter heads
- B01D2201/302—Details of removable closures, lids, caps, filter heads having inlet or outlet ports
- B01D2201/303—Details of removable closures, lids, caps, filter heads having inlet or outlet ports not arranged concentrically
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/54—Computerised or programmable systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2201/00—Details relating to filtering apparatus
- B01D2201/56—Wireless systems for monitoring the filter
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/002—Construction details of the apparatus
- C02F2201/006—Cartridges
-
- 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
-
- 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
- C02F2209/02—Temperature
-
- 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
- C02F2209/05—Conductivity or salinity
- C02F2209/055—Hardness
-
- 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
- C02F2209/40—Liquid flow rate
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2307/00—Location of water treatment or water treatment device
- C02F2307/10—Location of water treatment or water treatment device as part of a potable water dispenser, e.g. for use in homes or offices
Definitions
- the invention relates to a filter head for a filter candle for water treatment.
- the invention also relates to an extension set for a filter head.
- a filter head in which a filter candle can be used.
- the filter head is installed inline in an existing on-site, i.e. pressurized, water pipe.
- a filter candle is inserted into this filter head, which is used with a medium for water treatment, which e.g. contains an ion exchange material and substances for the removal of pollutants and bacteria, such as activated carbon.
- a medium for water treatment which e.g. contains an ion exchange material and substances for the removal of pollutants and bacteria, such as activated carbon.
- Such a filter head is known, for example, from the laid-open specification DE 102017 129 559 A1 (BWT AG).
- the filter candle must be replaced regularly, since the filter medium, in particular the ion exchange material, is used up.
- Such an exchange can be carried out on a time basis, but it does not take into account the amount of water that has already been treated with the system.
- the filter head and / or the filter candle comprises an adjustable bypass, via which a partial flow can be branched off that was not passed through the water treatment medium and which is then mixed with the water passed through the water treatment medium.
- the bypass is set based on the hardness of the inlet water.
- hardness components such as calcium are replaced by other ions, such as hydrogen, via an ion exchange material, which can in particular be designed as a weakly acidic ion exchange resin.
- the invention is based on the object of at least reducing the stated disadvantages of the prior art.
- the object of the invention is already achieved by a filter head, a system with a filter head and an extension set for a filter head according to one of the independent claims.
- the invention relates to a filter head with a housing with an inlet and at least one outlet for connection to an on-site water line.
- the filter head is designed to be installed inline in a pressurized water installation system.
- the filter head has an inlet and an outlet through which it can be installed pressure-tight in the water installation.
- a filter candle with a filter candle inlet and at least one filter candle outlet can be inserted into the filter head.
- Such a filter candle can, for example, have a thread via which the filter candle is connected to the filter head.
- the filter candle inlet and the filter candle outlet can be designed, for example, as coaxial channels, in particular as a central channel which is surrounded by at least one annular channel.
- the inlet water can be directed into the filter cartridge starting from the filter head. There it passes through at least one medium for water treatment, e.g. B. an ion exchange material, and flows back through the filter candle outlet into the filter head, in order then to be passed on to the extraction point via the outlet.
- at least one medium for water treatment e.g. B. an ion exchange material
- the filter candle can also comprise a membrane for reverse osmosis.
- the filter head can have a further outlet for discharging the water on the concentrate side.
- the filter head further comprises means for setting a desired degree of water hardness by setting a blending amount.
- the filter head thus comprises at least one device in order to set the partial flow ratio of a bypass in relation to a partial flow which is passed completely through the water treatment medium.
- the filter head can be designed in such a way that only part of the water to be treated is passed through the filter candle, while the bypass flow is not passed through the filter candle and is thus not softened.
- This bypass water can be blended within the head with the water passed through the filter candle.
- the blending takes place within the filter candle.
- the filter head has an adjusting element which engages in the filter candle and changes a partial flow ratio within the filter candle via a drive.
- bypass flow also passes a section of the filter candle and can, for example, at least be passed through a material that removes harmful substances, such as activated carbon.
- the filter head further comprises a flow meter.
- the volume flow passing through the filter head can be measured using the flow meter.
- the filter head can comprise at least one conductivity measuring device.
- the conductivity of the inlet and / or outlet water can be determined via the conductivity measuring device.
- the conductivity can be used to infer the degree of hardness of the water.
- the conductivity is primarily used to determine the concentration of total ions, but the water hardness can still be determined with a good approximation using the conductivity, as this depends primarily on the concentration of the dissolved calcium and magnesium ions.
- the conductivity measuring device is designed in particular as a conductivity measuring cell which comprises at least two electrodes spaced apart from one another.
- the electrical resistance of the water can be determined via the electrodes, which in turn allows conclusions to be drawn about the water hardness.
- the conductivity measuring device comprises a temperature sensor.
- the conductivity of the inlet and / or outlet water can be determined more precisely via the temperature sensor.
- the filter head can furthermore comprise an interface for data transmission to an external unit.
- the filter head can furthermore comprise an integrated computing unit.
- the signals from the flow meter and, if necessary, from the conductivity measuring device can be evaluated via the integrated processing unit.
- the integrated computing unit can calculate the current flow rate, the treated water volume since the filter cartridge was replaced, the degree of hardness of the input and / or output water.
- the filter head comprises a display on which values calculated by the computing unit can be shown.
- the display can in particular be arranged on a side wall of the housing of the filter head.
- the filter head itself has a display, it is not necessary to connect it to an external unit in order to read the values on the display.
- the filter head preferably has an integrated power supply for the computing unit and the display. This means that there is no need for an electrical connection to the filter head.
- a battery that can be inserted into the housing or a rechargeable battery, for example, can serve as the energy supply.
- the interface for data transmission can be used to program the filter head via an external unit, for example to set the desired degree of hardness of the starting water.
- the measured values obtained can be forwarded to an external unit by cable or wirelessly.
- the filter head according to the invention can communicate bidirectionally with a mobile device via a wireless interface, in particular WiFi and / or Bluetooth.
- a program can be installed on the mobile device. This can, for example, display information on the degree of hardness of the inlet and / or outlet water, the current flow rate, the total amount of treated water within a specified and / or adjustable period of time, etc.
- a necessary replacement of the filter candle can also be displayed on the mobile device.
- the service life of the filter candle is preferably calculated on the basis of the amount of water which has flowed through the water treatment medium and / or through the filter head in total since the last replacement.
- the degree of softening in particular based on the electrical conductivity of the inlet and outlet water, can also be included in the calculation.
- the partial flow ratio of the water passed through the bypass and through the water treatment medium can be included in the calculation. In this way, in particular, conclusions can be drawn about the amount of water passed through the water treatment medium. Due to the conductivity measurement, it is possible to measure the capacitance e.g. B. to better exploit an ion exchange material.
- the filter head can successively reduce the amount of blending as the ion exchange material is exhausted, which can considerably extend the service life of a filter candle.
- the flow meter, display and / or the interface for data transmission to the external unit and the integrated computing unit are preferably integrated in the housing of the filter head.
- a conductivity measuring cell is arranged in each case in the inlet and in the outlet of the filter head.
- the at least one conductivity measuring cell can be arranged in a connection piece connected to the housing of the filter head.
- it can be a removable connection piece, via which the filter head can be adapted to different pipe diameters and / or different installation situations.
- the integration of the at least one conductivity measuring cell enables a compact design, since the channel forming the input and output can be used as a measuring cell, in particular in which the two measuring electrodes are opposite one another. Furthermore, the measuring cells, which are sensitive to deposits such as lime crusts, can be easily removed together with the connector and cleaned or replaced.
- the measuring cell can comprise an electrical connection which is connected to the integrated processing unit via a cable connection.
- the means for setting a desired degree of softening comprise an actuator connected to the computing unit.
- the bypass ratio can be set automatically via the actuator. Automatic readjustment is possible, for example to compensate for the decreasing softening effect of an ion exchange material during the service life of the filter cartridge.
- the actuator can also be regulated as a function of the flow rate.
- the bypass volume can be increased as the volume flow decreases. So will compensates for the longer residence time of the water to be treated in the ion exchange bed in this state.
- Measurement curves can also be stored on the computing unit.
- the computing unit can in particular take into account the amount of water present in the filter candle, so that the bypass amount is initially increased when an extraction point is opened. This compensates for the fact that the water standing in the filter cartridge is much more softened than the initial water in continuous operation due to its long residence time.
- the actuating drive can be designed, for example, as a motor-operated threaded spindle, via which an actuating element is moved to regulate the blending ratio.
- the at least one conductivity measuring cell, the interface for data transmission to an external unit and / or the integrated computing unit is arranged in an expansion module that can be coupled to the basic housing. According to this embodiment of the invention, it is possible, in a simple manner, to retrofit a filter head that does not have the functionality of transmitting data to external units and / or that of measuring the softening effect.
- the connectable expansion module can in particular be designed as a housing extension which can be connected to a main housing.
- a programming point for the computing unit can also be present on the filter head itself. There, for example, the replacement of a filter candle and / or a desired degree of hardness of the source water can be programmed.
- the filter head comprises means for recognizing a filter candle.
- the filter head can comprise an RFID reading device.
- the filter candle can thus be identified. In particular, it can be recorded automatically in this way whether a filter candle has been replaced and, if applicable, what kind of filter candle it is. For example, the system can automatically adapt to filter cartridges with different filter beds. So there can be filter candles that z. B. due to a different loading of the ion exchange material and / or due to a different amount of ion exchange material have a different capacity than another filter candle.
- the ion exchange material can, for example, be partially loaded with magnesium in order to release magnesium into the water to be treated.
- Such a filter candle has a somewhat lower capacity than a filter candle which only comprises ion exchange material loaded with hydrogen.
- the invention relates to a filter head, in particular a filter head with one or more features described above.
- the filter head comprises a housing with an inlet and at least one outlet for connection to an on-site water line, wherein a filter candle with a filter candle inlet and at least one filter candle outlet can be inserted into the filter head.
- the filter head also has means for setting a desired degree of softening by setting a blending ratio in accordance with the definition mentioned above. These can in particular be configured as described above.
- the filter head comprises at least one connection piece with an integrated conductivity measuring cell.
- the at least one connection piece can in particular be removed from the filter head.
- At least one conductivity measuring cell in the inlet and / or outlet enables a compact design, since, as stated above, an inlet or outlet channel can be optimally used as a measuring cell with electrodes facing one another.
- a removable input or output in particular a connection piece for connection to an on-site line, can on the one hand enable a filter head to be retrofitted with a conductivity measuring cell.
- the conductivity cell can be replaced or cleaned more easily.
- the invention relates to a filter head, in particular a filter head with one or more features described above.
- the filter head comprises a housing with an inlet and at least one outlet for connection to an on-site water line, wherein a filter candle with a filter candle inlet and at least one filter candle outlet can be inserted into the filter head.
- the filter head further comprises means for setting a desired degree of water hardness by setting a blending ratio.
- a flow meter is integrated in the housing of the filter head.
- the flow meter can in particular comprise a housing with an inlet and an outlet, which is arranged in an extension of the main housing and which is between an outlet of a filter candle and the outlet for connection to the on-site water pipe or which is between the inlet for connection to the on-site water pipe and is connected to an input of a filter candle.
- the flow rate is measured in front of or behind the filter candle inside the housing of the filter head.
- the flow meter can in particular be arranged approximately at the level of the inlet and outlet of the filter candle.
- a main housing of the filter head comprises connections for the housing of the flow meter.
- the flow meter can for example be arranged in a housing extension.
- the flow meter can also be part of an expansion module.
- a filter head can thus be provided in which the connections for the flow meter are connected to one another by a line, in particular by a U-shaped line piece.
- this line section can be exchanged for the flow meter.
- the flow meter and an integrated computing unit and optionally an interface for data transmission can be present in a couplable housing extension.
- the integrated computing unit can in turn be electrically connected to a conductivity measuring cell, which can be provided in particular as an exchangeable connection piece as part of an expansion set.
- the flow meter can in particular be designed as a turbine meter, in particular as a radial meter.
- the axis of the turbine wheel is formed parallel to the direction of insertion of a filter candle.
- the turbine wheel is thus arranged vertically in the intended installation position and can thus be integrated particularly easily in a compact housing.
- Such turbine water meters allow precise measurement over a wide measuring range.
- a turbine wheel meter of this type is known, for example, from the patent application WO 2019/202134 A1 (BWT AG).
- a measurement signal can be generated via such a turbine wheel meter, for example via an inductive sensor.
- the flow meter is designed as a closed module that can be connected to channels of the filter head.
- the module can be plugged onto the channels.
- the module can have two connections arranged in parallel and can thus be plugged into the filter head, in particular from the side.
- the flow meter is inserted into an inlet or outlet of the filter head.
- the flow meter can in particular comprise an impeller, for example an impeller, which is mounted in a housing, the housing being inserted into the inlet or outlet of the filter head.
- the impeller is therefore plugged into a connection on the filter head together with the housing. This enables easy assembly. Furthermore, the space that is already present, which is present in a connection designed as a pipe section, can be used to accommodate the impeller.
- a connection can be arranged on the inlet or outlet, at which the speed of the impeller and / or the flow rate can be tapped. This connection is on the outside.
- the transmission of the speed of the impeller to the connection is preferably carried out ferromagnetically.
- a magnet can be arranged in the impeller which, when the impeller rotates, sweeps past a corresponding sensor surface of the connection.
- An opening in the line section of the connection or an electrical leadthrough through the connection can thus be dispensed with.
- connection does not include a computing unit, but only enables the rotational speed signal to be tapped.
- connection can also include electronics with a computing unit, via which the flow rate is calculated and can thus be read out at the connection.
- the invention further relates to a system for water treatment which comprises at least one filter head, as described above, and a filter candle inserted into the filter head.
- the filter candle comprises at least one water treatment medium.
- the invention further relates to an expansion set for a filter head, in particular for a filter head with one or more of the features described above.
- the extension set comprises a connection piece that can be connected to an input and / or output of the filter head, the connection piece comprising an integrated conductivity measuring cell.
- the expansion set can also include a computing unit and an interface for data transmission to an external unit.
- Such an electronic module can in particular be arranged in a removable housing extension.
- a flow meter in particular a flow meter described above, can also be part of such an extension set.
- Fig. 1 and Fig. 2 are perspective views of a filter head according to the invention.
- Fig. 3 is a perspective view of a filter candle.
- Figure 4 is another perspective view of the filter head.
- Fig. 5 is a perspective view of a connector.
- Fig. 6 shows a quick coupling piece with which the connecting piece can be attached.
- Figure 7 is a radial sectional view of the connector.
- FIG. 8 is a perspective detailed view of the filter head, with the housing of the housing extension being removed.
- Fig. 9 is a further perspective detail view.
- Fig. 10 is a radial sectional view of the housing of the flow meter.
- FIG 11 is a view of the filter head in the area of the housing extension, the flow meter being removed so that the circuit board can be seen in its entirety.
- Figures 12 and 13 are cross-sectional views of the filter head.
- Figure 14 is an axial sectional view of the filter head.
- 15 and 16 schematically show exemplary embodiments of a filter head which can be coupled to an external unit.
- FIGS. 17 to 22 show a further embodiment of a filter head in which a flow meter is integrated in a connection of the filter head.
- Fig. 17 is a perspective view.
- Fig. 18 is a cross-sectional view.
- Fig. 19 is a longitudinal section.
- FIG. 20 is a detailed illustration of the area A of FIG. 19.
- Fig. 21 is a longitudinal section and
- Fig. 22 is a cross section of the connector of the filter head.
- 23 shows an embodiment in which the filter candle is designed as a reverse osmosis system.
- FIG. 1 shows a perspective view of an exemplary embodiment of a filter head 1 according to the invention.
- the filter head 1 can be inserted inline in an on-site water pipe and comprises an inlet 2 and an outlet 3 for this purpose.
- Input 2 and output 3 are designed as removable connection pieces 200a, 200b.
- connection pieces 200a, 200b are angular, the connections being able to be attached in different angular positions with respect to the housing 100 of the filter head 1 in order to adapt to different installation situations.
- the housing 100 of the filter head can in this embodiment via the coupling
- 103 can be connected to a wall-side support (not shown).
- connection pieces 200a, 200b can be removed by twisting off a quick coupling piece
- the housing 100 of the filter head 1 is provided at the front with a display 101 and a control panel 102.
- the current flow rate, the processed volume since the last replacement of the filter candle or the degree of hardness of the starting water can be read off.
- the various values can be displayed via the control panel 102, for example by pressing it several times.
- the control panel 102 can furthermore comprise a reset button, via which, for example, a counter for the service life of the filter candle is reset after the filter candle has been replaced.
- the filter head 1 comprises an actuating element 105 protruding upwards, via which the blending ratio is set manually in order to adapt the desired softening to the degree of hardness of the input water.
- the blending ratio is automated, for example set via a motor-operated threaded spindle.
- a correspondingly designed display for the blending ratio 105 can be present.
- the display 105 may include a window 123 through which the setting of the Blending ratio can be read off in that there is a corresponding scale behind the window 123 (see also FIG. 4).
- the filter head 1 further comprises the actuating element 106 for a flushing valve.
- the actuation of the flushing valve is primarily used to flood a newly installed filter candle and then flush the filter candle through, whereby suspended matter is diverted and the exchange reactions in the ion exchange material can be incorporated.
- FIG. 2 is a perspective view of the underside of the filter head 1.
- the filter head comprises a main housing 101 a, which is coupled to a housing extension 110.
- the housing extension 110 is preferably designed as a housing part that can be detached from the main housing 100a.
- the housing extension 110 comprises a cable bushing 111, via which, for example, an external unit, such as a display or programming device, can be coupled to a computing unit integrated in the housing extension 110 and / or via the electrical and electronic components of the filter head 1 with electrical power can be supplied.
- an external unit such as a display or programming device
- the filter head 1 comprises an internal thread 112 into which the filter candle (see FIG. 3) is screwed.
- the filter head comprises a central outlet 107 to the filter candle.
- the outlet 107 to the filter candle is designed as a sleeve with at least one passage.
- annular channel 108 is provided as the inlet 108 for water coming from the filter candle, which extends around the outlet to the filter candle 107.
- An actuator 109 for a shut-off valve of the inlet protrudes into this annular channel 108.
- the actuator 109 is only pushed back when the filter candle is already connected to the filter head 1 in a sealing manner.
- the water supply is automatically closed when the filter candle is removed and opened again when the filter candle is inserted.
- FIG. 3 shows a suitable filter candle 40 in a perspective view.
- the filter candle 40 comprises a head piece with an external thread.
- a central tube forms the inlet 41 of the filter candle, around which an annular channel 42 extends as an outlet.
- Water can be introduced into the filter candle 40 via the central downpipe of the inlet 41, which then flows through the filter medium and exits again at the outlet 42.
- This central tube can comprise at least one opening (not shown).
- the blending ratio can be set via the sleeve of the outlet (107 in FIG. 1) reaching into this pipe in the connected state.
- FIG. 4 shows the rear side of the filter head 1 in a perspective view.
- the housing extension 110 can be part of an expansion set to supplement the filter head 1 with the additional functionality according to the invention or can be removed in order to retrofit components of an expansion set, in particular a flow meter and / or a computing unit.
- connection pieces 200a, 200b can also be part of an expansion set.
- connection pieces 200a, 200b each include an electrical connection 201.
- the electrical connection 201 is designed as a plug connection.
- Electronics arranged in the housing extension 110 can be connected to the electrical connection 201 via a cable connection (not shown).
- connection piece 200b of the outlet shows a perspective view of a connection piece, specifically the connection piece 200b of the outlet.
- connection piece 200b of the outlet of the filter head comprises a backflow preventer 204. Due to the backflow preventer 204, no water escapes when the filter candle is removed, because the line on the outlet side runs empty.
- connection piece 200b comprises a collar 206 in which, in the connected state, the quick-release coupling 104 shown in FIG. 6 engages, via which the connection piece 200b can be removed and connected in a simple manner.
- the connection piece 200b comprises an integrated conductivity measuring cell 205, which comprises the electrical connection 201.
- connection piece 200b is also designed as an angle piece 202.
- a straight connection piece is also possible in the context of the invention.
- connection 203 for an on-site line can be designed as a thread, for example.
- 7 is a cross-sectional view of the connection piece in the area of the conductivity measuring cell 205.
- the conductivity measuring cell 205 comprises two electrodes 207a, 207b lying opposite one another, which protrude into the channel 208 which is formed by the connection piece.
- the conductivity measuring cell 205 also includes a temperature sensor (not shown).
- FIG. 8 shows a perspective detailed view of the rear side of the filter head, with the housing extension (110 in FIG. 4) being removed.
- a flow meter 300 which comprises the housing 301, is integrated in the housing extension.
- a computing unit 400 which comprises a circuit board 401, is located below the flow meter.
- the circuit board 401 comprises a connection 403, for example for the conductivity measuring cells.
- the circuit board 401 comprises a battery 402, which can in particular be designed as a button cell.
- the battery 402 can be used to supply power to the computing unit 400.
- FIG. 9 is a further perspective view of the area of the flow meter with an upper housing part of the flow meter removed.
- the flow meter has an input 302 and an output 303. Water flows through the flow meter via input 302 and output 303.
- a filter head can be provided without a flow meter, which can easily be expanded to include the flow meter by replacing the line piece with the flow meter.
- the flow meter is designed as a closed module, which can be plugged with its input 302 and output 302 onto the connections (channels 114 and 115) of the filter head.
- the circuit board has a further electrical connection 404, which is used, for example, to connect the display (101 in FIG. 1).
- connection line for the display (not shown) can be routed through the housing of the filter head, in particular along the housing side wall.
- the flow meter 300 comprises a turbine wheel 304 which is arranged as a radial turbine and sits flat in the housing 301.
- Such a flow meter 300 is compact, provides an exact measurement result and causes only a relatively small flow loss.
- the turbine wheel 304 can comprise at least one magnet or a ferromagnetic insert (not shown) for generating a measurement signal.
- the speed of the turbine wheel 304 and thus the flow rate can thus be measured via an inductive sensor.
- a calibration curve relating to this can be stored in the computing unit.
- FIG 11 shows the circuit board 401 arranged in the housing extension of the filter head, the flow meter now being removed.
- the circuit board 401 itself can comprise sensor surfaces 405a, 405b.
- the sensor surfaces 405a, 405b can, for example, be part of an integrated inductive sensor and thus directly detect the speed of the turbine wheel of the flow meter.
- Fig. 12 is a cross section of the filter head 1 in the area of the connections (2, 3), this view being shown from below.
- the central outlet 107 to the filter candle can be seen, around which the inlet, designed as an annular channel 108, extends for water flowing from the filter candle.
- the actuator 109 for the inlet valve 113 via which the inlet 2 is closed when the filter candle is removed, protrudes into this annular channel 108.
- the water flowing out of the filter candle flows through the outwardly extending channel 114 into the flow meter 300 and sets the turbine wheel 304 in motion as a function of the flow rate.
- the axis of the turbine wheel 304 is aligned parallel to the direction of insertion of the filter candle, therefore parallel to the outlet 107 and the inlet 108.
- the housing which lies flat in this way, facilitates a compact design.
- the water also flows from the flow meter 300 at approximately the same level via the channel 115 to the outlet 3.
- the backflow preventer 204 can be seen, which keeps the outlet 3 closed when the filter candle is removed so that no water flows back.
- FIG. 13 is a further cross section of the filter candle 1, a view now being shown from above.
- the housing 301 of the flow meter is thus sealingly connected to the channels of the filter head by means of the seals 121 and 122.
- the housing 301 is placed directly on the circuit board 401.
- Figure 14 is an axial sectional view of the filter head.
- the outlet 107 to the filter candle comprises a sleeve 117 with at least one passage 119.
- the sleeve 117 comprises a seal 118 and, in the connected state, engages in the central tube of the filter candle.
- the sleeve 117 can be axially displaced via the threaded spindle 116 which can be driven by means of a servomotor (not visible in this view) and which is connected to the display 105 for the bypass.
- a different number of holes are opened or closed in the downpipe of the filter candle, depending on the axial position of the sleeve 117, or the cross-section of an elongated hole is opened more or less to the side. In this way, the blending ratio can be set.
- the hose connection 120 can also be seen, to which a hose can be connected in order to drain off outlet water which emerges when the flushing valve is actuated.
- FIG. 15 schematically shows a filter head 1 which, in this embodiment, does not have its own display device.
- the filter head 1 can otherwise be designed as the embodiment described above.
- the filter head 1 has a wireless communication device, for example Bluetooth or Wlan, and can thus set up a data connection with a mobile device 5.
- a program running on the mobile device 5 can be used to call up data such as degree of hardness, amount of water, etc.
- the predicted remaining service life of the filter candle can also be displayed.
- FIG 16 shows an embodiment in which the filter head 1 is connected to an external unit 60 via a cable.
- the external unit can comprise a display 61 and / or a control panel 62.
- the cable 63 can, for example, be connected to the processing unit via the cable bushing (111) shown in FIG. 2.
- display 61 and control panel 62 can correspond to that of the embodiment shown in FIG. 1 with a display on the filter head.
- connection via the cable 63 has the advantage that the external unit 60 can be attached at a different location.
- the filter head can be located under the table, for example in the catering industry, whereas the external unit 60 is mounted easily accessible above the table, for example on a wall.
- FIG. 17 shows a perspective view of a further exemplary embodiment of a filter head 1 in a perspective view.
- the filter head 1 is, like the filter heads shown above, designed for the insertion of a filter candle and is connected to an existing water pipe on site.
- the filter head 1 comprises an input 2 and an output 3.
- input 2 and output 3 are arranged next to one another and run parallel to one another.
- the filter head 1 is therefore connected from one side. Another embodiment is also conceivable.
- the filter head 1 comprises an actuating member 105 which is designed to be rotatable in order to set a bypass.
- the actuating member 105 can only be rotated while the locking member 124 is pressed at the same time.
- a flow meter is integrated in a connection, in this exemplary embodiment in the outlet 3.
- connection piece with a conductivity measuring cell to the input 2 and / or output 3, for example a connection piece as shown in FIGS. 4 and 5 (200a, 200b).
- connection pieces 18 are a cross section of the filter head 1, which runs centrally through the connection pieces, that is to say through inlet 2 and outlet 3.
- a backflow preventer 127 can be located upstream of the shut-off valve 126. On the outlet side, there is initially a further backflow preventer 128 behind the filter candle in the direction of flow.
- the outflowing water flows within the pipe section of the outlet 3 via the flow meter 500, the configuration of which is described in more detail below.
- the integration of the flow meter 500 in a connection piece enables a particularly compact design.
- 19 is a longitudinal section of the filter head 1, which runs centrally through the outlet 3. It can be seen that the flow meter 500 is seated within the connection designed as a tube.
- FIG. 20 is a detailed illustration of the area A from FIG. 19.
- the flow meter 500 comprises an impeller 503 which is mounted in a housing 501 pushed into the pipe section of the outlet 3.
- the flow meter 500 can be installed particularly easily.
- the housing 501 can, for example, be locked in the pipe section and / or clamped in by means of a seal 505.
- the housing 501 comprises a channel 502 which, seen in cross section, tapers to one side of the outlet 3, so that the impeller 503 is flown against from one side.
- a magnet (not shown) can be integrated into the impeller 503. The speed of the impeller 503 can thus be read out contactlessly from the outside via the connection 125.
- FIG. 21 is a longitudinally sectioned detailed view of the outlet 3. It can be seen that in the housing 501 the impeller 503 is mounted on the edge side perpendicular to the direction of flow by means of the bearings 504.
- connection 3 is a cross-sectional detailed view of the connection 3 on the flow side immediately after the impeller 503.
- the bearings 504 are designed as shafts which are mounted in corresponding round holes in the housing 501.
- the impeller 503 can be mounted, for example, by first clipping it into the housing 501 and then pushing it into the connection 3 together with the housing.
- the filter head shown in FIGS. 17 to 22 is designed in particular for communication with an external unit.
- FIG. 23 is a perspective view of a filter head 1 which is designed for a filter candle which contains a membrane for reverse osmosis (not shown).
- the then concentrated input water has to be drained off on one side of the concentrate.
- the water on the concentrate side is discharged via the further outlet 4.
- the further output 4 is executed centrally in the actuator 125.
- the filter head corresponds to the exemplary embodiment explained with reference to the drawings in FIGS. 17 to 22.
- An electrical connection 125 via which the signal from a flow meter can be tapped, is arranged at the output 3.
- the configuration of the flow meter together with the connection 125 corresponds to the illustration according to FIGS. 20 to 22.
- the invention made it possible to provide a filter head that is easy to use and adjustable, while at the same time ensuring a more uniform water hardness and a longer service life of the filter candle.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Filtration Of Liquid (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102020106793.3A DE102020106793A1 (en) | 2020-03-12 | 2020-03-12 | Filter head and extension set for a filter head |
PCT/EP2021/053409 WO2021180418A1 (en) | 2020-03-12 | 2021-02-12 | Filter head and extension kit for a filter head |
Publications (1)
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EP4117801A1 true EP4117801A1 (en) | 2023-01-18 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP21705906.2A Pending EP4117801A1 (en) | 2020-03-12 | 2021-02-12 | Filter head and extension kit for a filter head |
Country Status (4)
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US (1) | US20230202882A1 (en) |
EP (1) | EP4117801A1 (en) |
DE (1) | DE102020106793A1 (en) |
WO (1) | WO2021180418A1 (en) |
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DE102023109692A1 (en) | 2023-04-18 | 2024-10-24 | Bwt Holding Gmbh | Connection head with UV irradiation device and UV irradiation device |
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Publication number | Priority date | Publication date | Assignee | Title |
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US7638042B2 (en) * | 2002-02-15 | 2009-12-29 | 3M Innovative Properties Company | System for monitoring the performance of fluid treatment cartridges |
US20030168389A1 (en) | 2002-02-15 | 2003-09-11 | Astle Robert E. | System for monitoring the performance of fluid treatment cartridges |
DE102007013203A1 (en) | 2006-03-17 | 2007-09-20 | Aquis Wasser-Luft-Systeme Gmbh, Lindau, Zweigniederlassung Rebstein | Water purification device for softening, decarbonization or demineralization of water, comprises housing, water inlet and outlet lines connectable with external water pipeline, a sensor element, and replaceable/rechargeable energy storage |
DE202014106162U1 (en) * | 2014-12-19 | 2016-03-24 | Hans Sasserath Gmbh & Co. Kg | Verschneideanordnung |
DE102015203753A1 (en) * | 2015-03-03 | 2016-09-08 | Judo Wasseraufbereitung Gmbh | Water treatment device and method for operating the water treatment device |
US10421032B2 (en) * | 2016-03-11 | 2019-09-24 | Kx Technologies Llc | Modular filtration platform |
EP3357868A1 (en) | 2017-02-07 | 2018-08-08 | Bwt Aktiengesellschaft | Water softening device and method to operate a water softening device |
DE202017102570U1 (en) * | 2017-05-02 | 2018-08-06 | Bwt Ag | Connection head for a filter cartridge and filter cartridge |
ES2906359T3 (en) * | 2017-05-26 | 2022-04-18 | Sasserath Hans Gmbh & Co Kg | Water taps for mixing treated drinking water |
EP3580527B1 (en) | 2018-04-18 | 2020-08-19 | BWT Aktiengesellschaft | Turbine wheel counter |
-
2020
- 2020-03-12 DE DE102020106793.3A patent/DE102020106793A1/en active Pending
-
2021
- 2021-02-12 WO PCT/EP2021/053409 patent/WO2021180418A1/en active Search and Examination
- 2021-02-12 US US17/910,252 patent/US20230202882A1/en active Pending
- 2021-02-12 EP EP21705906.2A patent/EP4117801A1/en active Pending
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WO2021180418A1 (en) | 2021-09-16 |
DE102020106793A1 (en) | 2021-09-16 |
US20230202882A1 (en) | 2023-06-29 |
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