WO2005042803A1 - Dispositif de traitement d'eau - Google Patents

Dispositif de traitement d'eau Download PDF

Info

Publication number
WO2005042803A1
WO2005042803A1 PCT/EP2004/012308 EP2004012308W WO2005042803A1 WO 2005042803 A1 WO2005042803 A1 WO 2005042803A1 EP 2004012308 W EP2004012308 W EP 2004012308W WO 2005042803 A1 WO2005042803 A1 WO 2005042803A1
Authority
WO
WIPO (PCT)
Prior art keywords
water treatment
sacrificial anode
treatment device
cassette
opening
Prior art date
Application number
PCT/EP2004/012308
Other languages
German (de)
English (en)
Inventor
Marc Flettner
Original Assignee
Marc Flettner
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Marc Flettner filed Critical Marc Flettner
Publication of WO2005042803A1 publication Critical patent/WO2005042803A1/fr

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • C23F13/08—Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto
    • C23F13/18—Means for supporting electrodes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F13/00—Inhibiting corrosion of metals by anodic or cathodic protection
    • C23F13/02—Inhibiting corrosion of metals by anodic or cathodic protection cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions
    • C23F13/06—Constructional parts, or assemblies of cathodic-protection apparatus
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46176—Galvanic cells
    • 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
    • C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
    • C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
    • C02F1/46104—Devices therefor; Their operating or servicing
    • C02F1/46109—Electrodes
    • C02F2001/46152—Electrodes characterised by the shape or form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/08—Corrosion inhibition
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents

Definitions

  • the water treatment unit The water treatment unit
  • the invention relates to a water treatment device comprising a line element in which at least one sacrificial anode is inserted / can be used.
  • a line element of such a water treatment device comprises a metallic sleeve into which one or more sacrificial anodes can be inserted / inserted, a sacrificial anode being connected to the metallic sleeve in an electrically conductive manner.
  • the line element itself can form the metallic sleeve.
  • water treatment devices can usually only be moved with the help of crane trucks and installed or expanded in a pipeline network.
  • the invention relates to water treatment devices of any nominal size.
  • the object of the invention is to provide a water treatment device of the generic type which is particularly low-maintenance and in which a simple exchange of one or more sacrificial anodes is possible, in particular even with very large nominal diameters.
  • a sacrificial anode can be removed from the line element through a closable opening arranged on the line element.
  • This feature which is essential to the invention, of a closable opening arranged on the line element means that in the event of maintenance, in particular for replacing the sacrificial anode, it is no longer necessary to remove the complete water treatment device from the water line network.
  • the closable opening on the line element can now be opened and a sacrificial anode inserted in the line element can be removed through this opening and replaced by a new sacrificial anode, for example, in the event of contamination or wear.
  • the opening can then be closed and thus the Water treatment device to be operated again with optimal efficiency.
  • the structure according to the invention only requires the weight of a corresponding sacrificial anode to be mastered and no longer the weight of a complete water treatment device.
  • the construction of a water treatment device according to the invention is advantageously such that the closable opening is arranged in the wall of the line element, in particular between an inflow and an outflow opening.
  • the inlet and outlet openings are arranged in the flow direction in conventional water treatment devices, so that according to the invention it can be provided, for example, that the closable opening and the axis in which a sacrificial anode can be inserted or removed from the water treatment device are perpendicular to the usual one Flow direction of the water is arranged.
  • a water treatment device is also advantageously constructed in such a way that it has an area extending behind a closable opening for receiving a sacrificial anode or for receiving a cassette into which a sacrificial anode can be inserted / inserted interchangeably.
  • a sacrificial anode can be inserted directly into the line element through the opening, or that a type of intermediate device in the sense of a cassette is provided, into which a sacrificial anode can be replaced or inserted, so that this can then be used
  • the entire arrangement of the cassette together with the sacrificial anode can be inserted into or removed from a line element.
  • a sacrificial anode or cassette with such a sacrificial anode inserted into the water treatment device preferably divides the water treatment device or the line element into an upstream and a downstream part such that water from one part to the other only through the sacrificial anode or through the cassette and thus likewise can flow through the sacrificial anode. This ensures that all water that flows through the line element in the direction of flow must definitely pass the effective surface of the sacrificial anode and undergo appropriate treatment.
  • an area opposite the closable opening in the wall the water treatment device has an inner recessed portion which serves to receive and / or stabilize at least one end region of a sacrificial anode or a cassette.
  • the area for receiving a sacrificial anode or a cassette has an inner cross section which is larger in comparison to the downstream and upstream area.
  • the receiving area of the sacrificial anode or the cassette can have a substantially rectangular inner cross section, which leads to a particularly simple handling of the sacrificial anode or the cassette when pushing in and out, since the cassette or Sacrificial anode has a cross-section corresponding to this and thus a cassette or Can easily insert sacrificial anode in the manner of a drawer in the line element.
  • a step can be formed in the inner wall area of the water treatment device, which serves as a guide or also as a system for a sacrificial anode or cassette that can be inserted through the opening. Since two such stages (one in the downstream and one in the upstream region) form inside the line element of the water treatment device, a cassette or a sacrificial anode, which is inserted into the corresponding receptacle without a cassette, is held securely against the water pressure between the two stages.
  • the steps or the immediately adjacent surfaces in the interior of the line element can serve as sealing surfaces in order to prevent water from flowing around the sacrificial anode on its flow path.
  • a cassette is to be used for the construction according to the invention, which is used to modularly accommodate a sacrificial anode
  • a cassette can, for example, form a frame with an inner recess into which a sacrificial anode can be inserted.
  • the sacrificial anode can be sealed, in particular at its edge, with respect to the frame of the cassette.
  • Such a seal can be made, for example, in that a sacrificial anode has recessed grooves on its outer surface, into which O-ring seals are inserted.
  • Such a construction is particularly simple if the modularly exchangeable sacrificial anode has a circular cross section.
  • a new fresh sacrificial anode is first placed in the used or soiled sacrificial anode Insert the cassette frame and then insert the entire assembly with the cassette through the closable opening of the line element into the corresponding receiving area.
  • the closable opening can be closed by a corresponding cover and, if appropriate, a seal placed in between. It can be provided that such a closure cover is attached to the frame of the cassette or directly on the sacrificial anode or can be attached or even integrally formed.
  • a guide for facilitating the insertion of a sacrificial anode is provided at least in the area of the opening, e.g. characterized in that the opening has at least one inwardly projecting projection, in particular two, inwardly projecting projections on opposite sides, which in the present case in particular each serve as a guide for a sacrificial anode or cassette to be inserted.
  • a sacrificial anode / cassette has a corresponding groove on its outer edge, in particular on two opposite edge regions, into which a projection projecting inwards into the opening engages.
  • a groove or a projection or both have correspondingly beveled contact surfaces.
  • Other types of guide designs can also be used.
  • At least one vortex insert is arranged in the downstream and / or upstream region of the water treatment device, in order to generate a swirling of the fluid in the interior of the line element, in particular the region of the sacrificial anode.
  • This swirling creates a particularly intimate contact between the water and the sacrificial anode, and furthermore, such swirling reduces the tendency of the sacrificial anode to become dirty, which may consist, for example, of a large number of parallel bores / channels.
  • the areas upstream and downstream of the receiving area of a cassette or a sacrificial anode are symmetrical.
  • the installation direction of a water treatment device according to the invention is irrelevant in relation to the water supply network.
  • FIG. 1 shows a water treatment device in supervision of a closable opening for exchanging sacrificial anodes
  • FIG. 2 shows a water treatment device in supervision of one of the connection flanges for mounting in the water supply network
  • FIG. 3 shows a cross section through a water treatment device according to the invention with a laterally arranged opening for exchanging sacrificial anodes
  • FIG. 4 shows a cross-sectional view of section AA of FIG. 3 in the plane of the receiving area for a sacrificial anode to be replaced
  • FIG. 5 shows a cassette frame for receiving a circular sacrificial anode in several views
  • FIG. 6 shows the execution of a sacrificial anode in different representations with a plurality of bores arranged next to one another and extending through the sacrificial anode
  • FIG. 7 shows in several views a closure cover for closing the opening on the water pipe element
  • FIG. 8 shows a seal for insertion between the cover and the flange of the opening on the line element
  • Figure 9 in several views a vortex insert for insertion in the upstream or downstream area of the water treatment device.
  • connection flanges 2 and 3 can have any construction known to the person skilled in the art in connection with line elements, regardless of the example shown.
  • the water flow through the line element 1 runs in the direction I-II or vice versa and thus in any case in the axial direction between the flanges 2 and 3.
  • FIG. 1 Perpendicular to this direction, the illustration according to FIG. 1 shows an opening 5, likewise surrounded by a flange 4, through which, in the present embodiment, a cassette with a sacrificial anode which can be inserted therein the line element 1 can be used perpendicular to the flow direction l-ll.
  • Flange 4 and opening 5 have an essentially rectangular cross section, the respective corner regions being rounded.
  • FIG. 2 shows the same water treatment device in a view from above or from below of the respective connection flange 2 or 3. It can be seen that the flanges 2 and 3 each have a large number of bores in order to establish the connection to a water supply network. 2, the flange 4, which surrounds the insertion opening 5, is shown on the left-hand side.
  • FIG. 4 shows the section in the plane A-A of FIG. 3 and thus essentially an almost rectangular inner free cross section of the receiving area 6, into which a cassette with a sacrificial anode inserted therein can be inserted.
  • the entire recording area is thus approximately cuboid.
  • FIG. 5 shows a corresponding cassette 8, which essentially forms an outer frame 9, which in this exemplary embodiment has a circular, inner recess 10 for receiving a sacrificial anode 11, as is shown in FIG. 6.
  • a sacrificial anode 11 shown here in a circular manner, has a multiplicity of bores / channels 12 which extend longitudinally through the sacrificial anode 11 and thus ensure a large surface area of the metallic sacrificial anode 11.
  • a cassette 8 with sacrificial anode 11 arranged therein it is provided in the opening 5 of the line element 1 on two opposite sides - here on the short sides - protruding projections 17, which with corresponding grooves 18 cooperate on the frame 9 of the cassette, which are arranged on two opposite frame regions of the cassette.
  • a projection 17 engages in a groove 18, so that this also results in a particularly simple guidance.
  • the projections 17 or the grooves 18 can have correspondingly beveled leading edges.
  • FIG. 7 shows a cover element 19 from different directions, which, according to the construction shown here, can be fastened to a projecting area 20 of the frame 9 of the cassette 8 via corresponding bores 21 in this area 20 and corresponding blind threaded holes 22 in the cover 19.
  • the cover is integrally molded onto the frame 9 in one piece.
  • a tight connection between the cover 19 and the flange 4, which surrounds the opening 5 of the line element, can then be achieved.
  • a plurality of through bores 24 are provided in the cover 19, through which fastening in the corresponding blind threaded bores 25 in the flange 4 is achieved by means of screws.
  • FIG. 9 additionally shows the design of a swirl insert 25 as it is in each case both in the downstream and in the upstream region 7 of the line element, i.e. can be arranged upstream and downstream of a sacrificial anode.
  • the vortex insert is designed such that two perforated plates 26 and 27 are kept at a distance by perforated plates 28 arranged obliquely in the flow direction.
  • the respective holes in the respective sheets are designed in different sizes and arrangements in order to achieve an optimal swirling of the water flowing through.
  • Water treatment devices of the type shown can be replaced in a particularly simple manner, a sacrificial anode here by means of a cassette surrounding it.
  • a sacrificial anode here by means of a cassette surrounding it.
  • the particular advantage is that a complete removal of the entire water treatment device 1 is no longer necessary for this maintenance case.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

Dispositif de traitement d'eau qui comporte un élément conduite dans lequel est ou peut être installée une anode sacrificielle. Selon la présente invention, l'anode sacrificielle (11) peut être enlevée de l'élément conduite par une ouverture (5) pouvant être fermée, qui est ménagée dans ledit élément conduite.
PCT/EP2004/012308 2003-10-31 2004-10-29 Dispositif de traitement d'eau WO2005042803A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003151275 DE10351275A1 (de) 2003-10-31 2003-10-31 Wasserbehandlungsvorrichtung
DE10351275.6 2003-10-31

Publications (1)

Publication Number Publication Date
WO2005042803A1 true WO2005042803A1 (fr) 2005-05-12

Family

ID=34530075

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2004/012308 WO2005042803A1 (fr) 2003-10-31 2004-10-29 Dispositif de traitement d'eau

Country Status (2)

Country Link
DE (1) DE10351275A1 (fr)
WO (1) WO2005042803A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3597605A1 (fr) 2018-07-20 2020-01-22 WS Wasserenthärtung Schweiz GmbH Dispositif de traitement des liquides, en particulier pour le traitement de l'eau

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140614A (en) * 1975-01-23 1979-02-20 Mckie William M Internal cathodic protection of pipes
GB2367560A (en) * 2000-08-25 2002-04-10 Main Tech As Sacrificial anode with releasable connection

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4033016A1 (de) * 1990-10-18 1991-07-11 Richard Dr Knedla Eine elektrolytische durchflusszelle fuer katalytische aufbereitung von trinkwasser, zwecks der beseitigung von geloester organischer schadstoffe und schwermetallen, der behandlung von abwaesser und fuer organische synthesen bei der herstellung organischer rohstoffe
US5543040A (en) * 1994-12-12 1996-08-06 Fi-Tek Purification Systems, Inc. Apparatus for purification of water-based fluids in closed-loop flow systems
PT101757B (pt) * 1995-08-11 2003-08-29 Julio Da Silva Bento Sistema para a separacao de carga contaminante das aguas e sua desinfeccao
US5759383A (en) * 1995-08-23 1998-06-02 Nibco, Inc. Root intrusion and algae prevention device and method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4140614A (en) * 1975-01-23 1979-02-20 Mckie William M Internal cathodic protection of pipes
GB2367560A (en) * 2000-08-25 2002-04-10 Main Tech As Sacrificial anode with releasable connection

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3597605A1 (fr) 2018-07-20 2020-01-22 WS Wasserenthärtung Schweiz GmbH Dispositif de traitement des liquides, en particulier pour le traitement de l'eau
CH715192A1 (de) * 2018-07-20 2020-01-31 Ws Wasserenthaertung Schweiz Gmbh Vorrichtung zur Behandlung von Flüssigkeiten, insbesondere zur Behandlung von Wasser.

Also Published As

Publication number Publication date
DE10351275A1 (de) 2005-06-02

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