WO2009080256A1 - Mobile spraying device, particularly for spraying treatment solutions for removing coatings and for disinfecting water containers and other water supply devices - Google Patents

Mobile spraying device, particularly for spraying treatment solutions for removing coatings and for disinfecting water containers and other water supply devices Download PDF

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Publication number
WO2009080256A1
WO2009080256A1 PCT/EP2008/010717 EP2008010717W WO2009080256A1 WO 2009080256 A1 WO2009080256 A1 WO 2009080256A1 EP 2008010717 W EP2008010717 W EP 2008010717W WO 2009080256 A1 WO2009080256 A1 WO 2009080256A1
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WO
WIPO (PCT)
Prior art keywords
pump
mobile
spraying
sprayer according
water supply
Prior art date
Application number
PCT/EP2008/010717
Other languages
German (de)
French (fr)
Inventor
Rainer Späne
Original Assignee
Späne GmbH
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 Späne GmbH filed Critical Späne GmbH
Priority to ATA9441/2008A priority Critical patent/AT511178A5/en
Priority to DE112008003407T priority patent/DE112008003407A5/en
Publication of WO2009080256A1 publication Critical patent/WO2009080256A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/08—Apparatus to be carried on or by a person, e.g. of knapsack type
    • B05B9/085—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump
    • B05B9/0855—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven
    • B05B9/0861—Apparatus to be carried on or by a person, e.g. of knapsack type with a liquid pump the pump being motor-driven the motor being electric
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L2/00—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16—Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/22—Phase substances, e.g. smokes, aerosols or sprayed or atomised substances
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/007—At least a part of the apparatus, e.g. a container, being provided with means, e.g. wheels, for allowing its displacement relative to the ground
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/03—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material
    • B05B9/04—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump
    • B05B9/0403—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material
    • B05B9/0413—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour characterised by means for supplying liquid or other fluent material with pressurised or compressible container; with pump with pumps for liquids or other fluent material with reciprocating pumps, e.g. membrane pump, piston pump, bellow pump
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/02—Cleaning by the force of jets or sprays
    • B08B3/026—Cleaning by making use of hand-held spray guns; Fluid preparations therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/0856—Cleaning of water-treatment installations
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays

Definitions

  • Mobile spraying device in particular for spraying treatment solutions for the removal of coverings and for the disinfection of water containers and other water supply devices
  • the invention relates to a new mobile sprayer, in particular for spraying treatment solutions for
  • Removal of coverings in or on water containers and other water supply equipment or for disinfecting it is intended and comprising a spray lance for spraying a treatment solution and a pump for supplying the treatment solution from a storage or mixing container under the desired pressure to the spray lance.
  • the mobile sprayer can also be used for other purposes, in which any treatment liquids, in particular those water-based or with the consistency of aqueous solutions, must be sprayed over a large area by an operator, wherein the operator moves in front of the surfaces to be sprayed.
  • any treatment liquids in particular those water-based or with the consistency of aqueous solutions, must be sprayed over a large area by an operator, wherein the operator moves in front of the surfaces to be sprayed.
  • the coverings to be removed have a high mechanical strength and considerable chemical resistance. In order to be able to remove them effectively, it is therefore necessary to use special treatment solutions which are aqueous solutions of suitable chemicals.
  • the solutions can, according to their exact composition, have a considerable aggressiveness or corrosiveness and are often mixed together just before they are used from suitable components.
  • the treatment solution In order to remove the coverings from the walls of, for example, municipal drinking water tanks, which are generally sized underground swimming pools, the treatment solution must be uniformly applied by an operator in the required quantity with a low-pressure spray lance on the walls. be sprayed, with the operator slowly wanders through the entire drinking water tank.
  • drinking water is a foodstuff
  • removal of the toppings may only be carried out under strict hygienic conditions.
  • the drinking water tanks must therefore also be subjected to a final disinfection with suitable disinfectant solutions prior to their recommissioning after the removal of the surface. Even such a disinfectant solution must be sprayed over a large area.
  • the operator can usually not carry the entire liquid supply with him, but receives the liquid supplied via hoses that feed the liquid from a storage or mixing container, which is also used for mixing the treatment solution from their
  • Diaphragm metering pump with an associated compressor for generating compressed air.
  • the pump is connected to a 10 to 100 m long hose that connects the pump to the spray lance used by the operator.
  • Another basic type uses an electromotive pump mounted on a base plate and / or a support is arranged.
  • both the compressor and the electric motor are operated with a mains alternating current of 230 V / 50 Hz, they must not be taken into the drinking water tank because of the risk to the operator in the humid environment. Another risk is the gear oil, which must not get into a drinking water tank, which could occur, for example, in a membrane breakage. It is therefore currently prohibited to take the pumps and the associated drive motors with them into the clean drinking water tank. They must therefore be placed outside the drinking water tank to be cleaned and are connected to the spray lance over long hoses. The long hoses ⁇ lead to high friction losses, which is why pumps or
  • the present invention is based on an analysis of the disadvantages of the previous practice, as a result of which the inventors came to the conclusion that new mobile sprayers are needed which can be taken into the drinking water container, since they do not have the above potential risks of the known mobile ones Sprayer go out. ' The present invention provides such a new mobile sprayer. Its basic features are given again in the following claims and will become apparent to those skilled in the art from the following more detailed description of the invention.
  • the pump used is a chemical-resistant, self-priming and dry-proof liquid pump which is supplied with low voltage (usually 12-48 V), e.g. can be operated with economical 24 V, preferably from batteries or possibly also suitable transformers.
  • low voltage usually 12-48 V
  • 24 V preferably from batteries or possibly also suitable transformers.
  • Such pumps are available from specialist companies and are usually based on the principle of oscillating positive displacement pumps.
  • the rotational movement of a drive shaft via an eccentric system is converted into a vibrating (oscillating) movement in known manner and transmitted via a connecting rod to a pump diaphragm.
  • the membrane movement ensures the proper pumping or conveying process.
  • Such pumps operate virtually noiseless and contain no engine oil that can leak and get into a drinking water tank.
  • the pump preferably draws power from powerful accumulators which are mounted together with the pump on a portable or wheeled plate and then, when their power is exhausted and they need to be replaced or charged, easily against fresh
  • Accumulators can be replaced. It results in a low overall weight of the mobile sprayer, which allows the operator to easily transport the latter wherever it is needed.
  • this second set of batteries is connected to an included charger and can quickly and easily replace the first set if its performance deteriorates.
  • low voltage such as a voltage up to 48 V
  • the electrical equipment can be operated without safety problems in facilities such as drinking water tanks.
  • the new mobile sprayer is designed to ensure uninterrupted work at all times and to save time when cleaning containers from the o.g. Belong to the past.
  • the mobile sprayer can be taken into the drinking water tank, eliminating the hitherto required meter-long hoses. It becomes possible also to make the storage and mixing container part of the mobile sprayer, e.g. mounted on a wheeled common base plate. But it can also be easily placed inside the clean drinking water tank in convenient proximity to the work area and e.g. used in conjunction with a portable sprayer working unit.
  • the additional equipment is thus slimmer and, of course, the device as a whole easier. Since the operator can move with the device almost unrestricted, so it can rise to the top, can also be high-lying, accessible by a person wall areas be cleaned relatively easily. So far water towers have been difficult to clean, as to pump the cleaning medium (the treatment solution) from the bottom in the upper area lying in the tank powerful pumps were needed, which could provide the need to overcome the height difference pressures.
  • the cleaning medium the treatment solution
  • the mobile sprayer according to the invention works much more efficient and economical than the conventional devices. Since the pump does not have to be constantly driven at its upper power limit to build up the required pressure or to provide the required spray performance, also reduces the wear, and the life or operating life of the pump increases.
  • the selected liquid pump (provider: KNF Flotos AG) with an aqueous medium for drinking water tank cleaning and / or disinfection problem a pressure of 1 - 15 bar (low pressure range) and a capacity of 1 - 25 l / min promotes.
  • the pump is powered by a low-DC voltage, which can be supplied by accumulators.
  • the device is portable or can be pulled on wheels and thereby always be placed in the immediate vicinity of the surfaces to be treated.

Abstract

A mobile spraying device, particularly for spraying treatment solutions for removing coatings in or on water containers and other water supply devices or for the disinfection thereof, comprising a spray lance for spraying a treatment solution, and a pump for supplying the treatment solution from a reservoir or mixing container to the spray lance, characterized in that the pump is driven by an electric motor that can be operated at low voltage and is part of a mobile unit.

Description

Mobiles Sprühgerät, insbesondere zum Versprühen von Behandlungslösungen zur Entfernung von Belägen und zur Desinfek- tion von Wasserbehältern und anderen Wasserversorgungseinrichtungen Mobile spraying device, in particular for spraying treatment solutions for the removal of coverings and for the disinfection of water containers and other water supply devices
Die Erfindung betrifft ein neues mobiles Sprühgerät, das insbesondere zum Versprühen von Behandlungslösungen zurThe invention relates to a new mobile sprayer, in particular for spraying treatment solutions for
Entfernung von Belägen in oder an Wasserbehältern und anderen Wasserversorgungseinrichtungen oder zu deren Desinfektion bestimmt ist und das eine Sprühlanze zum Versprühen einer Behandlungslösung sowie eine Pumpe für die Zufuhr der Behandlungslösung aus einem Vorrats- oder Mischbehälter unter dem gewünschten Druck zu der Sprühlanze umfasst .Removal of coverings in or on water containers and other water supply equipment or for disinfecting it is intended and comprising a spray lance for spraying a treatment solution and a pump for supplying the treatment solution from a storage or mixing container under the desired pressure to the spray lance.
Das mobile Sprühgerät kann jedoch auch für andere Zwecke verwendet werden, bei denen irgendwelche Behandlungsflüssig- keiten, insbesondere solche auf Wasserbasis bzw. mit der Konsistenz wässriger Lösungen, von einer Bedienungsperson großflächig versprüht werden müssen, wobei sich die Bedienungsperson vor den zu besprühenden Flächen weiterbewegt . Wenn die Erfindung nachfolgend anhand des bevorzugten Spe- zialfalls der Entfernung von Belägen aus Trinkwasserbehältern beschrieben wird, soll damit der Einsatzbereich eines mobilen Sprühgeräts, das die Merkmale der nachgeschalteten Ansprüche aufweist, nicht eingeschränkt werden. Auf dem Gebiet der kommunalen Wasserversorgung stellt sich in regelmäßigen Abständen das Problem, dass die Wasserversorgungseinrichtungen von Belägen befreit werden müssen, die sich im Laufe der Zeit aus dem kalten Frischwasser auf den Wänden und auf den Einzelteilen der Wasserversorgungseinrichtungen abscheiden. Besondere praktische Bedeutung hat dabei die Entfernung der Beläge von den Wänden von Trinkwasserbehältern .However, the mobile sprayer can also be used for other purposes, in which any treatment liquids, in particular those water-based or with the consistency of aqueous solutions, must be sprayed over a large area by an operator, wherein the operator moves in front of the surfaces to be sprayed. When the invention is described below with reference to the preferred special case of the removal of coverings from drinking water containers, it is not intended to limit the field of application of a mobile spraying device having the features of the claims below. In the field of municipal water supply, the problem arises at regular intervals that the water supply facilities must be freed from deposits that are separated over time from the cold fresh water on the walls and on the parts of the water supply facilities. Of particular practical importance is the removal of the deposits from the walls of drinking water tanks.
Die zu entfernenden Beläge weisen eine große mechanische Festigkeit und erhebliche chemische Beständigkeit auf. Um sie wirksam entfernen zu können, muss man daher spezielle Behandlungslösungen einsetzen, die wäßrige Lösungen geeigneter Chemikalien darstellen. Die Lösungen können, ja nach ihrer genauen Zusammensetzung, eine erhebliche Aggressivität bzw. Korrosivität aufweisen und werden häufig erst kurz vor ihrer Verwendung aus geeigneten Komponenten zusammengemischt .The coverings to be removed have a high mechanical strength and considerable chemical resistance. In order to be able to remove them effectively, it is therefore necessary to use special treatment solutions which are aqueous solutions of suitable chemicals. The solutions can, according to their exact composition, have a considerable aggressiveness or corrosiveness and are often mixed together just before they are used from suitable components.
Beispiele für Behandlungslösungen, die sich in den letztenExamples of treatment solutions that have changed in the last few years
Jahrzehnten als besonders wirksam erwiesen haben, bzw. für Chemikalienmischungen für ihre Herstellung, finden sich beispielsweise in verschiedenen Patentschriften und veröffentlichten Patentanmeldungen der Anmelderin, insbesondere in EP 0 113 060 Al/Bl; EP 0 775 092 Al/Bl; EP 1 150 923 Al/Bl; EP 1 300 368 Al/Bl; EP 1 621 521 Al sowie im Gebrauchsmuster 201 16 242. Auf den gesamten Inhalt der genannten Schriften wird zur Ergänzung der vorliegenden Beschreibung ausdrücklich verwiesen, auch was die Erläuterun- gen zur Problematik der Belagbildung und Belagentfernung angeht .Decades have proven to be particularly effective, or for chemical mixtures for their preparation, can be found for example in various patents and published patent applications of the applicant, in particular in EP 0 113 060 Al / Bl; EP 0 775 092 A1 / Bl; EP 1 150 923 A1 / Bl; EP 1 300 368 A1 / Bl; EP 1 621 521 A1 as well as in the utility model 201 16 242. The entire contents of the cited documents are expressly referred to supplement the present description, also with regard to the explanations on the problem of the formation of deposits and removal of scale.
Um die Beläge von den Wänden von z.B. kommunalen Trinkwasserbehältern zu entfernen, die schwimmbadgroße, in der Regel unterirdische Kammern darstellen, muss die Behandlungslösung von einer Bedienungsperson gleichmäßig in der erforderlichen Menge mit einer Niederdruck-Sprühlanze auf die Wände ver- sprüht werden, wobei die Bedienungsperson langsam durch den gesamten Trinkwasserbehälter wandert.In order to remove the coverings from the walls of, for example, municipal drinking water tanks, which are generally sized underground swimming pools, the treatment solution must be uniformly applied by an operator in the required quantity with a low-pressure spray lance on the walls. be sprayed, with the operator slowly wanders through the entire drinking water tank.
Da es sich ferner bei Trinkwasser um ein Lebensmittel han- delt, darf die Belagentfernung nur unter strengen hygienischen Auflagen durchgeführt werden. Vor ihrer Wiederinbetriebnahme nach der Belagentfernung/Reinigung müssen die Trinkwasserbehälter daher in Abhängigkeit von dem verwendeten Reinigungsmittel gegebenenfalls auch noch einer Ab- Schlussdesinfektion mit geeigneten Desinfektionsmittellösungen unterzogen werden. Auch eine solche Desinfektionsmittel - lösung muss großflächig versprüht werden.Furthermore, as drinking water is a foodstuff, removal of the toppings may only be carried out under strict hygienic conditions. Depending on the cleaning agent used, the drinking water tanks must therefore also be subjected to a final disinfection with suitable disinfectant solutions prior to their recommissioning after the removal of the surface. Even such a disinfectant solution must be sprayed over a large area.
Für das Versprühen der Behandlungslösung wird daher ein mobiles Spühgerät benötigt. Aufgrund der relativ großenFor the spraying of the treatment solution, therefore, a mobile spraying device is needed. Due to the relatively large
Flüssigkeitsmengen kann die Bedienungsperson in der Regel nicht den gesamten Flüssigkeitsvorrat mit sich führen, sondern erhält die Flüssigkeit über Schläuche geliefert, die die Flüssigkeit aus einem Vorrats- oder Mischbehälter zufüh- ren, der auch zum Anmischen der Behandlungslösung aus ihrenAmounts of liquid, the operator can usually not carry the entire liquid supply with him, but receives the liquid supplied via hoses that feed the liquid from a storage or mixing container, which is also used for mixing the treatment solution from their
Einzelbestandteilen gedient haben kann. Zur Förderung der Behandlungsflüssigkeit und zur Erzeugung des benötigten Sprühdrucks wird eine Pumpe benötigt.May have served individual ingredients. To promote the treatment liquid and to generate the required spray pressure, a pump is needed.
Derzeit gibt es verschiedene Typen von mobilen Sprühgeräten, von denen nachfolgend die wesentlichsten beiden Grundtypen beschrieben werden:There are currently several types of mobile sprayers, of which the following two basic types are described below:
Bei einem ersten Grundtyp von mobilen Niederdrucksprühgerä- ten verwendet man eine druckluftbetriebene, an sich bekannteIn a first basic type of mobile Niederdrucksprühgerä- th uses a compressed air operated, known per se
Membrandosierpumpe mit einem zugeordneten Kompressor zur Drucklufterzeugung. An die Pumpe ist ein 10 bis 100 m langer Schlauch angeschlossen, der die Pumpe mit der von der Bedienungsperson verwendeten Sprühlanze verbindet .Diaphragm metering pump with an associated compressor for generating compressed air. The pump is connected to a 10 to 100 m long hose that connects the pump to the spray lance used by the operator.
Bei einem anderen Grundtyp wird eine elektromotorische Pumpe verwendet, die auf einer Grundplatte und/oder einem Tragege- stell angeordnet ist.Another basic type uses an electromotive pump mounted on a base plate and / or a support is arranged.
Da sowohl der Kompressor als auch der Elektromotor mit einer Netz-Wechselstrom von 230 V/50 Hz betrieben werden, dürfen sie wegen des Risikos für die Bedienungsperson in der feuchten Umgebung nicht mit in den Trinkwasserbehälter genommen werden. Ein weiteres Risiko stellt das Getriebeöl dar, das nicht in einen Trinkwasserbehälter gelangen darf, wozu es z.B. bei einem Membranbruch kommen könnte. Es ist daher derzeit untersagt, die Pumpen und die zugeordneten Antriebs - motoren mit in den zu reinigen Trinkwasserbehälter zu nehmen. Sie müssen daher außerhalb des zu reinigenden Trinkwasserbehälters aufgestellt werden und sind mit der Sprühlanze über lange Schläuche verbunden. Die langen Schläuche ■ führen zu hohen Reibungsverlusten, weshalb Pumpen bzw.Since both the compressor and the electric motor are operated with a mains alternating current of 230 V / 50 Hz, they must not be taken into the drinking water tank because of the risk to the operator in the humid environment. Another risk is the gear oil, which must not get into a drinking water tank, which could occur, for example, in a membrane breakage. It is therefore currently prohibited to take the pumps and the associated drive motors with them into the clean drinking water tank. They must therefore be placed outside the drinking water tank to be cleaned and are connected to the spray lance over long hoses. The long hoses ■ lead to high friction losses, which is why pumps or
Pumpenmotoren mit einer Leistung benötigt werden, die deutlich höher ist als an sich für das eigentliche Niederdruck- Versprühen der Behandlungsflüssigkeit erforderlich wäre.Pump motors are required with a power that is significantly higher than would be necessary for the actual low-pressure spraying the treatment liquid.
Viele der üblichen Pumpen nehmen bei einem Trockenlaufen Schaden. Da die Pumpe außerhalb des Trinkwasserbehälters, d.h. außer der Reichweite der Bedienungsperson im Trinkwasserbehälter, aufgestellt ist, muss die Bedienungsperson zur Überwachung und Kontrolle der ordnungsgemäßen Pumpen- funktion - sowie auch zum Nachfüllen des Vorrats- oderMany of the usual pumps take damage during a dry run. Since the pump is outside the drinking water tank, i. In addition to the reach of the operator in the potable water tank, the operator must monitor and control the proper function of the pump, as well as refill the storage tank, or
Mischbehälters - die Arbeit immer wieder unterbrechen und nach draußen gehen. Die Alternative wäre eine stets anwesende zweite Arbeitskraft nur zur Geräteaufsicht und zum Nachfüllen, was aus einsehbaren Gründen nachteilig ist.Mixing container - interrupt the work again and go outside. The alternative would be an always present second worker only for supervision and refilling, which is disadvantageous reasons.
Der vorliegenden Erfindung liegt eine Analyse der Nachteile der bisherigen Praxis zugrunde, in deren Ergebnis die Erfinder zu dem Schluss kamen, dass neue mobile Sprühgeräte benötigt werden, die mit in den Trinkwasserbehälter genommen werden können, da von ihnen nicht die obigen potentiellen Risiken der bekannten mobilen Sprühgeräte ausgehen. ' Die vorliegende Erfindung schafft ein derartiges neues mobiles Sprühgerät. Seine Grundmerkmale sind in den nachfolgenden Ansprüchen wieder gegeben und ergeben sich für den Fachmann aus der nachfolgenden genaueren Beschreibung der Erfindung.The present invention is based on an analysis of the disadvantages of the previous practice, as a result of which the inventors came to the conclusion that new mobile sprayers are needed which can be taken into the drinking water container, since they do not have the above potential risks of the known mobile ones Sprayer go out. ' The present invention provides such a new mobile sprayer. Its basic features are given again in the following claims and will become apparent to those skilled in the art from the following more detailed description of the invention.
Gemäß der vorliegenden Erfindung wird als Pumpe eine chemikalienfeste, selbstansaugende und trocklaufsichere Flüssigkeitspumpe verwendet, die mit Niederspannung (üblicherweise 12 - 48 V) , z.B. mit sparsamen 24 V vorzugsweise aus Akkumulatoren oder ggf. auch von geeigneten Transformatoren betrieben werden kann.According to the present invention, the pump used is a chemical-resistant, self-priming and dry-proof liquid pump which is supplied with low voltage (usually 12-48 V), e.g. can be operated with economical 24 V, preferably from batteries or possibly also suitable transformers.
Derartige Pumpen sind von Fachfirmen erhältlich und beruhen meist auf dem Prinzip der oszillierenden Verdrängerpumpen. Bei diesen wird auf an sich bekannte Weise die Drehbewegung einer Antriebswelle über ein Exzentersystem in eine schwingende (oszillierende) Bewegung umgewandelt und über einen Pleuel auf eine Pumpenmembran übertragen. Zusammen mit dem Einlaß- und Auslaßventil sorgt die Membranbewegung für den eingentlichen Pump- bzw. Fördervorgang. Derartige Pumpen arbeiten praktisch geräuschlos und enthalten kein Motorenöl, das auslaufen und in einen Trinkwasserbehälter gelangen kann.Such pumps are available from specialist companies and are usually based on the principle of oscillating positive displacement pumps. In these, the rotational movement of a drive shaft via an eccentric system is converted into a vibrating (oscillating) movement in known manner and transmitted via a connecting rod to a pump diaphragm. Together with the inlet and outlet valve, the membrane movement ensures the proper pumping or conveying process. Such pumps operate virtually noiseless and contain no engine oil that can leak and get into a drinking water tank.
Den Strom bezieht die Pumpe vorzugsweise aus leistungsstarken Akkumulatoren, die zusammen mit der Pumpe auf einer tragbaren oder mit Rädern versehenen Platte montiert sind und dann, wenn ihre Leistung erschöpft ist und sie ausge- tauscht bzw. aufgeladen werden müssen, leicht gegen frischeThe pump preferably draws power from powerful accumulators which are mounted together with the pump on a portable or wheeled plate and then, when their power is exhausted and they need to be replaced or charged, easily against fresh
Akkumulatoren ausgetauscht werden können. Es ergibt sich ein nur geringes Gesamtgewicht des mobilen Sprühgeräts, das es der Bedienungsperson ermöglicht, letzteres problemlos überall hin zu transportieren, wo es benötigt wird.Accumulators can be replaced. It results in a low overall weight of the mobile sprayer, which allows the operator to easily transport the latter wherever it is needed.
Um einen kontinuierlichen Betrieb zu ermöglichen, wird neben dem genannten ersten Satz von Akkumulatoren auf der obigen Platte mit dem mobilen Sprühgeräte mindestens ein zweiter Satz Akkumulatoren mitgeliefert. Während das Sprühgerät im Einsatz ist, ist dieser zweite Satz Akkumulatoren an ein ebenfalls mitgeliefertes Ladegerät angeschlossen und kann schnell und problemlos den ersten Satz ersetzen, wenn dessen Leistung nachlässt.In order to allow continuous operation, in addition to the said first set of accumulators on the above Plate supplied with the mobile sprayers at least a second set of batteries. While the sprayer is in use, this second set of batteries is connected to an included charger and can quickly and easily replace the first set if its performance deteriorates.
Es liegt jedoch auch im Bereich der vorliegenden Erfindung, als Stromquelle anstelle von Akkumulatoren einen mit Hilfe von geeigneten Transformatoren auf Niederspannung transformierten Strom aus dem Stromnetz zu verwenden, wobei als "Niederspannung" eine solche Spannung bis maximal 48 V bezeichnet wird, mit der elektrische Geräte ohne Sicherheitsprobleme in Anlagen wie Trinkwasserbehältern betrieben werden können.However, it is also within the scope of the present invention, as a power source instead of batteries to transform using suitable transformers to low voltage transformed electricity from the mains, which is referred to as "low voltage" such a voltage up to 48 V, with the electrical equipment can be operated without safety problems in facilities such as drinking water tanks.
Das neue mobile Sprühgerät ist so konzipiert, dass jederzeit ein unterbrechungsfreies Arbeiten gewährleistet ist und Standzeiten bei der Behälterreinigung aus den o.g. Gründen der Vergangenheit angehören.The new mobile sprayer is designed to ensure uninterrupted work at all times and to save time when cleaning containers from the o.g. Belong to the past.
Da das mobile Sprühgerät mit in den Trinkwasserbehälter genommen werden kann, entfallen die bisher benötigten meterlangen Schläuche. Es wird möglich, auch den Vorrats- und Mischbehälter zum Teil des fahrbaren Sprühgeräts zu machen, indem man ihn z.B. auf einer mit Rädern versehenen gemeinsamen Grundplatte montiert. Er kann aber auch einfach im Inneren des zu reinigen Trinkwasserbehälters in bequemer Nähe des Arbeitsbereichs aufgestellt werden und z.B. in Verbindung mit einem tragbaren Sprühgeräte-Arbeitsaggregat zur Anwendung kommen.Since the mobile sprayer can be taken into the drinking water tank, eliminating the hitherto required meter-long hoses. It becomes possible also to make the storage and mixing container part of the mobile sprayer, e.g. mounted on a wheeled common base plate. But it can also be easily placed inside the clean drinking water tank in convenient proximity to the work area and e.g. used in conjunction with a portable sprayer working unit.
Die zusätzliche Ausrüstung wird somit schlanker und damit natürlich auch das Gerät insgesamt leichter. Da sich die Bedienungsperson mit dem Gerät nahezu uneingeschränkt bewegen kann, also auch nach oben steigen kann, können auch hochliegende, von einer Person erreichbare Wandbereiche relativ einfach gereinigt werden. So waren bisher Wassertürme nur schwierig zu reinigen, da zur Förderung des Reinigungsmediums (der Behandlungslösung) vom Boden in die in ihrem oberen Bereich liegenden Behälter leistungsstarke Pumpen benötigt wurden, die die zur Überwindung der Höhendifferenz benötigen Drücke liefern konnten.The additional equipment is thus slimmer and, of course, the device as a whole easier. Since the operator can move with the device almost unrestricted, so it can rise to the top, can also be high-lying, accessible by a person wall areas be cleaned relatively easily. So far water towers have been difficult to clean, as to pump the cleaning medium (the treatment solution) from the bottom in the upper area lying in the tank powerful pumps were needed, which could provide the need to overcome the height difference pressures.
Für solche Anwendungen kann es vorteilhaft sein, der Bedienungsperson auch einen tragbaren, bruchsicheren Behälter für einen gewissen Vorrat der Behandlungs- oder Desinfektionslösung zur Verfügung zu stellen, so dass auch der zu versprühende Vorrat an Behandlungslösung mitgeführt werden kann.For such applications, it may be advantageous to provide the operator with a portable, unbreakable container for a certain supply of the treatment or disinfecting solution, so that the supply of treatment solution to be sprayed can also be carried.
Aufgrund der gegenüber den bekannten Sprühgeräten sehr viel kürzeren Schlauchleitungen arbeitet das erfindungsgemäße mobile Sprühgerät viel effizienter und wirtschaftlicher als die herkömmlichen Geräte. Da die Pumpe nicht ständig an ihrem oberen Leistungslimit gefahren werden muss, um den erforderlichen Druck aufzubauen bzw. die geforderte Sprühleistung zu erbringen, verringert sich auch der Verschleiß, und die Lebens- bzw. Betriebsdauer der Pumpen erhöht sich.Due to the compared to the known sprayers much shorter hose lines, the mobile sprayer according to the invention works much more efficient and economical than the conventional devices. Since the pump does not have to be constantly driven at its upper power limit to build up the required pressure or to provide the required spray performance, also reduces the wear, and the life or operating life of the pump increases.
Beispiel :Example:
Bei der Erprobung eines Prototyps des erfindungsgemäßen mobilen Sprühgeräts, für das die Anmelderin die Markenbezeichnung CARELA® NOVO-MAT gewählt hat, zeigte sich, dass die gewählte Flüssigkeitspumpe (Anbieter: KNF Flotos AG) problemlos ein wässriges Medium zur Trinkwasserbehälterreinigung und/oder -desinfektion mit einem Druck von 1 - 15 bar (Niederdruckbereich) und einer Leistung von 1 - 25 l/min fördert. Die Pumpe wird mit einer Nieder-Gleichspannung betrieben, die von Akkumulatoren geliefert werden kann. Das Gerät ist tragbar bzw. kann auf Rädern gezogen werden und dadurch stets in unmittelbarer Nähe der zu behandelnden Flächen angeordnet werden. When testing a prototype of the mobile spray device according to the invention, for which the applicant has chosen the brand name CARELA ® NOVO MAT, it was found that the selected liquid pump (provider: KNF Flotos AG) with an aqueous medium for drinking water tank cleaning and / or disinfection problem a pressure of 1 - 15 bar (low pressure range) and a capacity of 1 - 25 l / min promotes. The pump is powered by a low-DC voltage, which can be supplied by accumulators. The device is portable or can be pulled on wheels and thereby always be placed in the immediate vicinity of the surfaces to be treated.

Claims

Ansprüche claims
1. Mobiles Sprühgerät, insbesondere zum Versprühen von Be- handlungslösungen zur Entfernung von Belägen in oder an Wasserbehältern und anderen Wasserversorgungseinrichtungen oder zu deren Desinfektion, mit einer Sprühlanze zum Versprühen einer Behandlungslösung und einer Pumpe für die Zufuhr der Behandlungslösung aus einem Vorrats- oder Mischbehälter zu der Sprühlanze, dadurch gekennzeichnet, dass die Pumpe durch einen mit Niederspannung betreibbaren Elektromotor angetrieben wird und Teil eines mobilen Aggregats ist.1. Mobile spray device, in particular for spraying treatment solutions for removing deposits in or on water containers and other water supply devices or for disinfecting them, with a spray lance for spraying a treatment solution and a pump for supplying the treatment solution from a storage or mixing container the spray lance, characterized in that the pump is driven by a low voltage operable electric motor and is part of a mobile unit.
2. Sprühgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Niederspannung von einem oder mehreren Akkumulator (en) geliefert wird, die ebenfalls Teil des mobilen Aggregats sind.2. Sprayer according to claim 1, characterized in that the low voltage of one or more accumulator (s) is supplied, which are also part of the mobile unit.
3. Sprühgerät nach Anspruch 1, dadurch gekennzeichnet, dass die Niederspannung über eine Leitung von einem externen Transformator geliefert wird.3. Sprayer according to claim 1, characterized in that the low voltage is supplied via a line from an external transformer.
4. Sprühgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Pumpe eine chemikalienfeste, selbstansaugende und trockenlaufsichere Flüssigkeitspumpe ist.4. Sprayer according to one of claims 1 to 3, characterized in that the pump is a chemical-resistant, self-priming and dry running safe liquid pump.
5. Sprühgerät nach Anspruch 4, dadurch gekennzeichnet, dass die Pumpe eine motorgetriebene Membranpumpe ist.5. Sprayer according to claim 4, characterized in that the pump is a motor-driven diaphragm pump.
6. Sprühgerät nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass Pumpe sowie ggf. der/die Akkumulator (en) gemeinsam auf einer tragbaren oder mit Rädern versehenen Tragplatte angeordnet sind, wobei die Akkumulatoren austauschbar sind.6. Sprayer according to one of claims 1 to 5, characterized in that the pump and possibly the / the accumulator (s) are arranged together on a portable or provided with wheels support plate, wherein the accumulators are interchangeable.
7. Sprühgerät nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Länge des Schlauchs zwischen Pumpe und Sprühlanze im Bereich von 2 bis 25 m liegt.7. Sprayer according to one of claims 1 to 6, characterized characterized in that the length of the hose between the pump and spray lance in the range of 2 to 25 m.
8. Sprühgerät nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass zu dem mobilen Sprühgerät auch mindestens ein Satz von Austauschakkumulatoren und ein Ladegerät gehören. 8. Sprayer according to one of claims 1 to 7, characterized in that the mobile spraying device also includes at least one set of replacement batteries and a charger.
PCT/EP2008/010717 2007-12-20 2008-12-16 Mobile spraying device, particularly for spraying treatment solutions for removing coatings and for disinfecting water containers and other water supply devices WO2009080256A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ATA9441/2008A AT511178A5 (en) 2007-12-20 2008-12-16 MOBILE SPRAYER, IN PARTICULAR FOR SPRAYING TREATMENT SOLUTIONS FOR REMOVING WIPES AND DISINFECTING WATER RESERVATIONS AND OTHER WATER SUPPLY EQUIPMENT
DE112008003407T DE112008003407A5 (en) 2007-12-20 2008-12-16 Mobile spraying device, in particular for spraying treatment solutions for the removal of coverings and for disinfecting water containers and other water supply devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200720017806 DE202007017806U1 (en) 2007-12-20 2007-12-20 Mobile spraying device, in particular for spraying treatment solutions for the removal of coverings and for disinfecting water containers and other water supply devices
DE202007017806.9 2007-12-20

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EP3028778A1 (en) * 2014-12-02 2016-06-08 CKJ Steel A/S Method of grinding an inner surface of a cylindrical tank

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US4865255A (en) * 1987-12-03 1989-09-12 Luvisotto Roy G Self-contained, mobile spraying apparatus
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DE112008003407A5 (en) 2011-01-27
AT511178A5 (en) 2012-09-15

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