WO2000030750A2 - Procede pour exploiter une installation d'adoucissement de l'eau a echange d'ions avec une unite de regeneration par mesure $i(in situ) de la durete residuelle de l'eau au moyen d'une unite de detection ionosensible - Google Patents
Procede pour exploiter une installation d'adoucissement de l'eau a echange d'ions avec une unite de regeneration par mesure $i(in situ) de la durete residuelle de l'eau au moyen d'une unite de detection ionosensible Download PDFInfo
- Publication number
- WO2000030750A2 WO2000030750A2 PCT/EP1999/009079 EP9909079W WO0030750A2 WO 2000030750 A2 WO2000030750 A2 WO 2000030750A2 EP 9909079 W EP9909079 W EP 9909079W WO 0030750 A2 WO0030750 A2 WO 0030750A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ion
- ion exchanger
- partial flow
- water
- unit
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 60
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 50
- 238000011065 in-situ storage Methods 0.000 title abstract description 4
- 230000001953 sensory effect Effects 0.000 title abstract 5
- 230000001172 regenerating effect Effects 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 claims abstract description 9
- 230000002596 correlated effect Effects 0.000 claims abstract description 3
- 230000008929 regeneration Effects 0.000 claims description 24
- 238000011069 regeneration method Methods 0.000 claims description 24
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000012625 in-situ measurement Methods 0.000 claims description 5
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000011157 data evaluation Methods 0.000 claims description 3
- 238000005342 ion exchange Methods 0.000 claims description 3
- 230000001276 controlling effect Effects 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 claims 1
- 230000008439 repair process Effects 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 48
- 239000011347 resin Substances 0.000 description 7
- 229920005989 resin Polymers 0.000 description 7
- 239000011575 calcium Substances 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000875 corresponding effect Effects 0.000 description 3
- 239000000126 substance Substances 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
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 229910052749 magnesium Inorganic materials 0.000 description 2
- 239000012528 membrane 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
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000003729 cation exchange resin Substances 0.000 description 1
- 229940023913 cation exchange resins Drugs 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000005669 field effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002706 hydrostatic effect Effects 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 229910001415 sodium ion Inorganic materials 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- 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
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/80—Automatic regeneration
- B01J49/85—Controlling or regulating devices therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/18—Water
- G01N33/1853—Hardness of water
Definitions
- the invention relates to a method for operating a water softening ion exchanger system with regeneration unit by in-situ measurement of the residual water hardness by means of ion-selective sensors and an arrangement for carrying out such a method.
- the gate of an ion-sensitive field-effect transistor, to which a membrane of ion-sensitive material is applied be immersed in the ion exchanger. Furthermore, the membrane is essentially made from the exchange substance that is used in the ion exchanger. With the aid of such a sensor, the state with regard to the load on the exchanger can be determined, but no statements can be made regarding the hardness of process water which flows through the ion exchanger.
- EP 0 154 278 A2 shows a hardness sensor for water softening systems, where the sensor is connected to a filling made of ion-exchanging shrink resin, which has a single free surface, via a piston. With such a sensor, the hardness is determined quasi indirectly via the change in volume of the shrink resin. The measurement itself is relatively slow and cannot be used for control purposes due to its inaccuracy.
- the softening of water by means of ion exchangers is known, with the flow of water through weakly acidic cation exchange resins the divalent ions, such as calcium and magnesium, being bound to the exchange resin much more than the monovalent sodium ions. This gives a higher sodium than calcium and magnesium concentration at the exit of the ion exchanger.
- a full demineralization and thus also further softening is possible by connecting them in series, i.e. Cascading of strong cation and anion exchangers can be achieved.
- a partial flow is branched off from the process water flow, the partial flow should have a minimized leak rate.
- This partial flow is led via a controllable valve unit to an ion-selective sensor system.
- control variables for the partial flow are provided according to the invention, a process signal for the control unit of the ion exchanger system being used for this. These control variables arrive at the valve unit, so that the partial flow sets in at the same time as the process water flow.
- the ionic concentration of the partial stream is monitored with a special sensor system, the regeneration process of the ion exchanger system being triggered and carried out when predetermined limit values are reached and / or exceeded.
- the partial flow is interrupted and there is preferably the possibility of supplying calibration fluid for calibration and control via the valve unit of the sensor system.
- the determined ion concentration is correlated with the temperature values of the partial flow in the sample channel.
- a partial flow duct is present at the outlet of the water softening ion exchanger system with regeneration unit, which branches off from the process water supply.
- the partial flow channel is connected to at least one valve of a valve group, which in turn forms a valve unit.
- the outputs of the valves lead to a sample channel, with at least one ion-selective Ca / Mg sensor and a temperature sensor being arranged in the sample channel.
- the above-mentioned sensors deliver output signals that reach an automatic measuring machine, including an electronic evaluation device.
- the control unit for the ion exchanger system is connected to the measuring machine in such a way that bidirectional signal exchange can take place.
- the measuring machine itself supplies control signals to the valve unit.
- the valve unit also interacts with a memory for holding calibration liquids, with at least one storage vessel leading to at least one valve of the valve group.
- the sample channel has a small diameter, preferably in the range ⁇ 3 mm.
- a pump is available for the defined setting and control of the partial flow, which can be activated by the measuring machine.
- the measuring machine can be connected via a suitable interface to a personal computer for data evaluation and specification of control variables, with the data being able to be transmitted both wirelessly and by wire.
- a telemetry unit is preferably used for the wireless transmission, and it is possible to use a public GSM, UMTS or DECT standard telecommunication network on the data transmission side.
- the ion exchanger system with regeneration unit has electrically or hydraulically controllable control valves in order to be able to switch the operational management from softening to regeneration or rinsing.
- the method according to the invention enables continuous, quality-oriented limit value monitoring with regard to the load on a
- Ion exchanger based on the determination of the residual hardness, combined with automated operation control of the ion exchanger system itself.
- the process water hardness level is constantly monitored and influenced.
- this can be recognized immediately by determining the degree of hardness and suitable measures can be taken to keep process water that does not meet the requirements from downstream facilities or to switch to redundant ones in good time To cause ion exchangers.
- the measured values are provided with high accuracy and reproducibly by performing an automated calibration for defined liquids beforehand or cyclically. These liquids are fed to the sample channel by opening or closing the valves or the valve group in the valve unit, which then determines the ion concentration of the calibration liquids in a flow-weighted manner in order to trigger a calibration process or to provide correction values that are taken into account in the subsequent in-situ measurement Find.
- the connected personal computer offers the possibility of intelligent data evaluation and long-term monitoring of the arrangement described.
- control valves for the operational management of the ion exchanger system can be controlled via the measuring machines after the master-slave operation, so that the connected regeneration unit can be activated automatically after certain saturation limits of the ion exchanger have been reached, as a result of which an optimal utilization of the performance of the ion exchanger is achieved over a predetermined time interval .
- the invention is to be explained in more detail below on the basis of an exemplary embodiment and with the aid of a figure.
- the figure shows a basic representation of the
- a feed water supply 3 reaches a module for water softening, which comprises at least one ion exchanger 1 and an associated regeneration unit 2. Softened process water 4 is available on the output side of this assembly.
- a partial flow channel 7 branches off from the process water supply 4.
- the regeneration unit 2 and the ion exchanger 1 are operated via a control unit 5 which activates control valves (not shown).
- the quality of the process water 4 from the feed water 3 is determined by continuously monitoring the partial flow in the partial flow channel 7, which flows through the measuring device 6, as it were, based on the process.
- the partial flow channel 7 leads to a valve unit 9, which comprises several valves or valve groups.
- a valve unit 9 On the output side of the valve unit 9 there is a sample channel which leads through a sensor unit 11.
- the flow in the partial flow channel 7 or in the sample channel is either determined with the aid of a pump 10 or is established by the given hydrostatic pressure.
- the sample channel has a very small diameter
- the automatic measuring machine integrated in the measuring device 6 forms a further control unit which works bidirectionally with the control device.
- unit 5 for the regeneration unit 2 or the ion exchanger 1 is connected.
- the control unit of the measuring machine 8 specifies process-oriented control variables for the valve unit 9, so that the current in the sample channel can be set in a defined manner.
- At least one ion-selective Ca / Mg sensor 12 with a measuring sensitivity in the range up to 10 mol / 1 and a temperature sensor with a temperature drift ⁇ 0.1 K are arranged, which deliver output signals which are sent to the control unit of the Measuring machines 8 arrive.
- the partial flow in the partial flow channel 7 or the current in the sample channel is realized analogously to the flow of the process water 4, in that the valve unit 9 is activated at the same time as the control output signals of the control unit 5.
- the measuring device 6 is self-monitored, by means of the measuring machine 8 and the control located there and the valve unit 9 in connection with the calibration memory 14, calibration cycles with defined calibration liquids are initiated.
- the valve for the partial flow channel 7 By closing the valve for the partial flow channel 7 and opening the valves connected to the calibration memory or a corresponding valve group, individual liquids then reach the sensor unit 11, if necessary selectively. whereby the desired calibration or the determination of calibration variables for the subsequent in situ measurement can be implemented.
- a personal computer system 15 can be connected to the control unit of the measuring machine 8 via an interface in order to carry out long-term monitoring, but also a qualitative evaluation of the sensor system in the sensor unit 11.
- the solution described with the exemplary embodiment enables continuous quality-oriented limit value monitoring, namely the residual hardness of the process water, which is conducted via a water softening ion exchanger system.
- Load condition of the ion exchanger (s) can be closed in order to initiate a regeneration process in good time.
- a suitable calibration and calibration process is automatically initiated during pauses in removal so that the desired measuring accuracy can be achieved.
- the capacity of the ion exchange resin can be optimally utilized and the consumption of water for rinsing and the regeneration processes mentioned can be minimized, so that the economy of corresponding softening systems increases.
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Biochemistry (AREA)
- Pathology (AREA)
- Analytical Chemistry (AREA)
- Medicinal Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Physics & Mathematics (AREA)
- Food Science & Technology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Treatment Of Water By Ion Exchange (AREA)
Abstract
L'invention concerne un procédé permettant d'exploiter une installation d'adoucissement d'eau à échange d'ions avec une unité de régénération, par mesure in situ de la dureté résiduelle de l'eau au moyen d'une unité de détection ionosensible. Selon l'invention, on dérive un courant partiel de l'eau de traitement, qui présente un taux de fuite minimisé. Ce courant partiel parvient sur une unité de détection par l'intermédiaire d'une unité de soupapes pilotable. On détermine ensuite les variables de référence pour le courant partiel sur la base d'un signal de traitement prédéfini par l'unité de commande pour l'installation à échange d'ions. Ces variables de référence sont ensuite guidées sur l'unité de soupapes, de manière que le courant partiel s'ajuste simultanément par rapport à l'écoulement de l'eau de traitement. L'unité de détection ionosensible sert à surveiller en continu les rapports de concentration dans le courant partiel. Lorsqu'une valeur limite est atteinte ou dépassée, le processus de régénération de l'installation à échange d'ions est lancé. En dehors de périodes de prélèvement de l'eau de traitement, le courant partiel est interrompu et du liquide d'étalonnage est acheminé par l'intermédiaire de l'unité de soupapes jusqu'à l'unité de détection, à des fins de jaugeage et de contrôle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP99960996A EP1051258A2 (fr) | 1998-11-26 | 1999-11-24 | Procede pour exploiter une installation d'adoucissement de l'eau a echange d'ions avec une unite de regeneration par mesure $i(in situ) de la durete residuelle de l'eau au moyen d'une unite de detection ionosensible |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19854651A DE19854651C1 (de) | 1998-11-26 | 1998-11-26 | Verfahren zum Betreiben einer Wasserenthärtungs-Ionentauscheranlage mit Regenerationseinheit durch in situ-Messung der Wasserresthärte mittels ionenselektiver Sensorik sowie Anordnung zur Durchführung eines derartigen Verfahrens |
| DE19854651.3 | 1998-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2000030750A2 true WO2000030750A2 (fr) | 2000-06-02 |
| WO2000030750A3 WO2000030750A3 (fr) | 2000-08-10 |
Family
ID=7889149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1999/009079 WO2000030750A2 (fr) | 1998-11-26 | 1999-11-24 | Procede pour exploiter une installation d'adoucissement de l'eau a echange d'ions avec une unite de regeneration par mesure $i(in situ) de la durete residuelle de l'eau au moyen d'une unite de detection ionosensible |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1051258A2 (fr) |
| DE (1) | DE19854651C1 (fr) |
| WO (1) | WO2000030750A2 (fr) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1685069A1 (fr) * | 2003-11-07 | 2006-08-02 | Seung Gwang Co., Ltd. | Adoucisseur d'eau chaude et froide auto-regenerable |
| EP4105652A4 (fr) * | 2020-02-12 | 2024-03-06 | Niterra Co., Ltd. | Dispositif de mesure de la qualité de l'eau et procédé de stockage pour dispositif de mesure de la qualité de l'eau |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10111730A1 (de) | 2001-03-09 | 2002-10-02 | Mettler Toledo Gmbh | Vorrichtung und Verfahren zum Mischen von Substanzen |
| DE10155886B4 (de) * | 2001-11-14 | 2006-07-13 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Automatisierbare Mess-, Reinigungs-und/oder Kalibriereinrichtung für Elektroden zur Messung von ph-Werten oder Redoxpotentialen |
| DE10156098A1 (de) * | 2001-11-16 | 2003-05-28 | Schellbach Winfried | Mehrfachsensorsystem |
| DE10302888B4 (de) * | 2002-02-26 | 2009-06-10 | Schellbach, Winfried, Dipl.-Ing. | Vorrichtung zur Bestimmung der Konzentration von Härtebildnern und Verfahren zur Prozeßsteuerung |
| DE10251872B3 (de) * | 2002-11-07 | 2004-02-05 | BSH Bosch und Siemens Hausgeräte GmbH | Vorrichtung und Verfahren mit einer Sensoreinheit |
| GB2404252B (en) * | 2003-07-24 | 2005-09-28 | Schlumberger Holdings | Apparatus and method for measuring concentrations of ions in downhole water |
| EP2169392B1 (fr) | 2008-09-26 | 2018-07-25 | R. Nussbaum AG | Procédé et dispositif destinés à la mesure de la dureté de l'eau |
| EP2228129A1 (fr) | 2009-03-09 | 2010-09-15 | Judo Wasseraufbereitung GmbH | Procédé de surveillance du déroulement de la régénération d'une installation d'adoucissement de l'eau |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379057A (en) * | 1979-12-17 | 1983-04-05 | Gebruder Heyl KG | Method for the cyclic regeneration of water-softening systems and programmed water-softening system for applying the method |
| DE3235808A1 (de) * | 1982-09-28 | 1984-03-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Sensor zum messen des austauschzustandes eines ionenaustauschers und verfahren zu seiner herstellung |
| WO1986003429A1 (fr) * | 1984-12-03 | 1986-06-19 | Culligan International Company | Systeme de traitement de fluides |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2628191A (en) * | 1946-10-29 | 1953-02-10 | Permutit Co | Regeneration of ion exchangers |
| DE3406724C2 (de) * | 1984-02-24 | 1986-03-13 | Peter 7031 Aidlingen Spiegl | Härtefühler für Wasserenthärtungsanlagen |
-
1998
- 1998-11-26 DE DE19854651A patent/DE19854651C1/de not_active Expired - Fee Related
-
1999
- 1999-11-24 WO PCT/EP1999/009079 patent/WO2000030750A2/fr not_active Application Discontinuation
- 1999-11-24 EP EP99960996A patent/EP1051258A2/fr not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4379057A (en) * | 1979-12-17 | 1983-04-05 | Gebruder Heyl KG | Method for the cyclic regeneration of water-softening systems and programmed water-softening system for applying the method |
| DE3235808A1 (de) * | 1982-09-28 | 1984-03-29 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Sensor zum messen des austauschzustandes eines ionenaustauschers und verfahren zu seiner herstellung |
| WO1986003429A1 (fr) * | 1984-12-03 | 1986-06-19 | Culligan International Company | Systeme de traitement de fluides |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1685069A1 (fr) * | 2003-11-07 | 2006-08-02 | Seung Gwang Co., Ltd. | Adoucisseur d'eau chaude et froide auto-regenerable |
| JP2007512120A (ja) * | 2003-11-07 | 2007-05-17 | スングァン カンパニー リミテッド | 自動再生冷／温軟水化装置 |
| EP1685069A4 (fr) * | 2003-11-07 | 2007-11-21 | Seung Gwang Co Ltd | Adoucisseur d'eau chaude et froide auto-regenerable |
| EP4105652A4 (fr) * | 2020-02-12 | 2024-03-06 | Niterra Co., Ltd. | Dispositif de mesure de la qualité de l'eau et procédé de stockage pour dispositif de mesure de la qualité de l'eau |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000030750A3 (fr) | 2000-08-10 |
| EP1051258A2 (fr) | 2000-11-15 |
| DE19854651C1 (de) | 2000-05-04 |
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