DE20318754U1 - Electrochemical ozone generator - Google Patents

Abstract

Electrochemical ozone generator for generating ozone with an electrochemical cell which comprises a cathode, an anode and an electrolyte arranged therebetween, characterized in that it is designed as a mobile hand-portable and portable device and in which the cell is formed from interchangeable disposable parts.

Description

The invention relates to a electrochemical ozone generator for generating ozone with a electrochemical cell comprising a cathode and an anode and an interposed electrolyte.

The mode of operation and areas of application of an electrochemical ozone generator with a cell comprising a cathode, an anode and a solid electrolyte membrane arranged in between as an electrolyte for generating ozone in demineralized water (demineralized water = fully demineralized water) are described, for example, in DE 196 06 606 C2 described including that in the DE 196 06 606 C2 cited prior art.

For some years it has been known that with Boron-doped films of diamond on suitable substrates electrochemically over a huge Potential range in aqueous Media are stable. In particular, it is also known that such Electrodes overvoltage for the Have oxygen evolution and therefore as anodes for ozone generation come into question ("Electrochemical Behavior of Synthetic Boron-Doped-Diamond Thin Film Anodes ", D. Gandini, P.-A. Michaud, I. Duo, E. Mahe, W. Haenni, A. Perret, C. Comninellis; New Diamond and Frontier Carbon Technology Vo. 9 No. 5 (1999) pp 303-316).

From the EP 0 994 074 A2 An arrangement and method for the anodic oxidation of aqueous solutions, in particular for water treatment, waste water treatment and bath treatment with an electrode equipped with a layer of diamond, is known.

Likewise, in the DE 100 25 167 A described an electrode for the electrolytic generation of ozone and / or oxygen.

The ones currently on the market electrochemical ozone generator - electrolysis cells for Generation of ozone - are stationary Systems with an appropriate power supply facility operated with mains connection become. Such stationary Electrolysis cells with power supply devices are connected to the mains used for example in the production of ozone in a wide range of applications, since ozone with an oxidation potential of 2.07 eV is an extremely effective one Represents oxidizing agent. Ozone is therefore used in chemistry and pharmacy for example for the oxidation of hydrocarbons in synthetic fiber production, Manufacture of pure oxidants for chemical processes, manufacture of raw materials for the pharmaceutical and cosmetic industry, production of peroxides, for the Disinfection and disinfection of drinking water, mineral water, swimming pool water, Domestic water, cooling and waste water as well as in the pulp, paper, textile, printing and plastics industries for the Bleaching of cellulose, paper, alumina and textile fibers etc. used. It also becomes bleaching in the food industry of food products, for sterilizing food, for disinfection of storage rooms, Packaging materials, production machines as well as for cleaning of exhaust gases and exhaust air.

The electrochemical ozone generator mainly produce alongside ozone Oxygen and other peroxidic and other electrolysis products depending on the composition of the water reacted at the anode.

With the commercially available electrolysis cells Ozone generation can meet these industrial needs Be taken into account. However, it has been found that beyond that there is a need to sterilize small and small amounts of water and sterilize, for example for laboratory samples or in pharmacies in the manufacture of liquid Medicines, or the analytical area or for drinking water portions. This is usually the case for water volumes of 3 l and less. Industrial stationary systems come for this for the production of ozone out of the question for economic reasons.

The invention is based on the object to create an electrochemical ozone generator that will make it possible small and very small quantities of water in an economical manner Sterilize and sterilize on-site ozonization.

According to the invention, an electrochemical Ozone generator proposed to be hand-tradable as a mobile and portable device is formed and in which the cell of interchangeable disposable parts is formed.

The invention thus proposes a very small handy device, trained in a miniaturized form, before that also as Mini ozone generator could be called. The device according to the invention includes both the ozone generator as well as the power supply in a portable Device, so that it independently from a stationary Power supply is mobile and everywhere can be used on site.

The device according to the invention is used in particular to inactivate germs and bacteria in water on site in order to make fully demineralized or not fully demineralized water sterile and sterile, in small quantities, with quantities of 1 to 3 l being considered. The cell can be made correspondingly small, which of course also does not have a very long lifespan, so that after the cell components have been used and become inactive, the whole of the cell can be removed from the device and thrown away as a disposable part and can be replaced by a new cell or only the used ones Parts of the cell are replaced. It is also important for mobile use that the device does not necessarily have to be connected to a network, but can be supplied with small amounts of energy on site by means of a battery and / or solar cell and / or rechargeable battery. Naturally it is also possible to design the device according to the invention in such a way that it can be connected to a power supply unit or is rechargeable.

The device according to the invention is thus for production a small amount of ozone and oxygen for a lifetime of, for example 12 hours, until the cell components are used up, and then through Exchange of the used and inactive parts or all Parts of the cell the device to make it operational again.

Advantageous embodiments of the device according to the invention for Generation of ozone with an electrochemical cell are the characteristic Features of the subclaims removable.

According to a proposal of the invention instructs the device a one- or multi-part tubular casing with openings are at the front and rear ends of the housing on and in the housing starting from the front end of the housing, the cathode successively, the solid electrolyte membrane, the anode, a in the longitudinal extent of the housing extending contact pin which can be brought into contact with the anode, an electrical power source and a closure part for the rear end of the housing, being subsequently to the anode towards the power source opposite the Power source sealed anode space is formed in the housing and the Anode space a passage for the generated Has gases.

When immersing the device according to the invention with Its front end can be opened through the opening at the front end of the tubular Housing that Contact the water to be treated with the cell and out of the passage in the anode compartment the generated gas containing ozone can escape from the housing and to be treated in the area surrounding the front end of the housing Water.

The inventive design of the device with a tubular Casing, in which the functional parts are arranged one behind the other enables compact design. In particular, provision is made for the housing to be elongated in the form of a rod, so that it in containers like bottles, pots or the like with its front end immersed, adjusted or can be attached, being the length of the housing is preferably in the range from 1: 5 to 1:15. In particular is it possible very small devices to build. The outside diameter of the housing depends preferably on the diameter of the to be inserted Batteries and is to be made larger in accordance with the housing wall, it is preferably in the range between 10 to 50 mm. The length of the housing depends on the one hand on the dimensions of the batteries as well of the cell heart and amounts to preferably at least about 10 cm. If the device is very long should be to bring in a correspondingly high container, that can casing correspondingly longer be formed. This is a handy portable device as a mini ozone generator created that has the size of a ballpoint pen in small format.

The between the electrical power source and the anode arranged contact pin is in the housing in the longitudinal extent the same is movably supported. This holder of the contact pin can preferably be used as a seal against the housing and at the same time a seal opposite the anode compartment the housing and the contact pin.

In an embodiment of the electrochemical according to the invention Ozone generator is the anode compartment over at least one in the Trained housing Passage with connected to the environment. This makes possible, that at Immerse the device with its front area in a water to be treated that the water through the passage in contact comes with the anode compartment and those arising during electrolysis Gases from the anode compartment get into the water to be treated. On his the end facing away from the anode is the contact pin with the current source contactable while he at his end in contact with the anode with which he can be pressed onto the anode, for example, is flat or crowned.

According to a proposal of the invention the cathode is removable, i.e. again releasably attached to the housing. Here, the Parts of the cell individually, i.e. can be used separately in the housing be or together, in which case e.g. Cathode and Anode with interposition of the electrolyte, for example connected to a unit.

The disposable cell made of cathode, electrolyte and anode is according to one Suggestion about the cathode on the housing supported. When the electrolyte is formed as a solid electrolyte membrane can be placed loosely on the cathode already attached to the housing and then the anode is placed loosely on it. When the anode is used up can then be solved by loosening the Cathode from the housing of the device the solid electrolyte membrane and anode are removed at the same time and the used parts are replaced by new ones.

According to a proposal of the invention is the cell composed of cathode, electrolyte and anode inserted into the front open end of the housing and by means of a fastener which can be fastened to the front end of the housing is, can be positioned and held, the fastener has a central continuous recess coaxial to the tubular housing. Through this recess in the fastener, the one to be treated can Contact water in the cathode.

It is possible to close the housing at its front end with a stepped bore provided, on which the cathode is placed, and then releasably fastened, for example, by means of a fastening means, such as a screw ring or bayonet lock, which can be screwed into the stepped bore from the front end of the housing. The fastening means can also be fastened, for example, to the outside of the housing, such as by means of a screw connection or bayonet connection or a clamping connection, but the fastening means should always have a central, continuous recess, so that the cathode fixed on the housing is connected to the surroundings. For example, the housing can have at the front end at least one slot which extends transversely to the longitudinal extent and forms a bayonet, through which the cathode can be inserted and removed again for holding in the housing.

It is also possible to have the housing on the front End with two facing each other transverse to the longitudinal extent Form extending slots through which the cathode to Holders in the housing can be inserted and removed again.

Cells that have a solid electrolyte membrane are included in connection with the treatment of demineralized water used to make this aseptic by ozonization. cells, which have a diamond-coated anode are used for treatment of non-desalinated water, e.g. Drinking water to this disinfect. Here, a cell is made of diamond-coated Anode and a cathode spaced from it, the gap formed between the anode and cathode of the Electrolyte is filled, and this electrolyte will in this case be the one to be treated Water formed. These cells can be diamond coated Anode forming the gap with the cathode loose, detachable or insoluble be composed. As a spacer to form the gap for the electrolyte can e.g. a porous Part or spacer can be used.

According to another suggestion the invention is the closure part with a device for switching the electrical on and off Power source equipped. The closure piece serves in a first function to lock the housing, pressing of the contact pin to the anode and the cohesion of the parts in the housing and in a second function for establishing the electrical contact, i.e. Switch the device on and off. The closure piece can for example about a bayonet connection or screw connection with the rear End of the case get connected. Between the power source housed in the housing, for example the batteries, and the closure piece can be a first compression spring be arranged. This first compression spring is used for mechanical cohesion of anode, contact pin and batteries in the housing, but no current flows. According to the invention Closure piece with two successive positions, of which the first position causes the mechanical cohesion of the parts of the device and the second position is the electrical contact between the power source and produces contact pin. These two separate ones and successive positions of the closure piece can, for example, in connection with two compression springs, which one after the other with appropriate movement of the Breech effective will be achieved. The second compression spring is activated the electrical contact - switch on - and if deactivated - switch off - the device.

The contact pin should consist of one corrosion-resistant, conductive Metal, for example titanium or another valve metal, such as zirconium, niobium and / or tantalum. The contact pin is used to activate the ozone generator, positioning and Holding the solid electrolyte membrane and the anode to the cathode by pressing of the contact pin to the anode.

In training of the device suggested the housing to divide and two tubular housing parts provide the coaxially releasably connectable, wherein a housing part the Cells and the anode compartment covers and the front housing part forms and a housing part includes the contact pin, the power source and the closure member and the rear housing part forms. These two tubular ones housing parts can for example screwed together, clipped or in the manner of a Bayonet lock can be connected. The anode compartment of the front housing part can then by means of the end facing the rear housing part a waterproof cover, through which the Contact pin when assembling pierced or through an opening feasible is and here the cover can be a passage for itself in the anode compartment have accumulating gas mixture that can be generated by means of the cell. The front one containing the cell and the anode compartment is preferred housing part on its the rear housing part facing end with a waterproof, but open to vapor diffusion Cover - membrane - covered, so that can permeate gas mixture generated by the cell. It is also possible, to provide a valve in the waterproof cover so that the gases escaping in the anode compartment can escape. The cover can too be formed by an elastomer film, which runs along the through hole for the contact pin accumulating gases to the outside passes.

When a closed anode compartment is formed in the housing of the device, it is now possible to fill the anode compartment with fully demineralized water, the resulting gases being discharged from the anode compartment via a corresponding passage can escape. In this way it is possible to use the device according to the invention to sterilize water that is not completely demineralized when using a cell with a solid electrolyte membrane, since demineralized water is present in the anode end space.

In further development of the invention proposed the front housing part with cell and anode compartment including demineralized water to be designed as a replaceable cartridge and thus a disposable part. The Escape of the gas mixture and ozone that can be generated, for example enabled by a vapor diffusion open cover of the anode compartment or through a corresponding lockable opening. To use the cartridge the rear housing part to connect, it is necessary that when connecting the contact pin through the the rear housing part the end of the cartridge penetrates and can be brought up to the anode. For this will suggested that the Cover of the front housing part on the rear part of the housing facing end is formed with an opening penetrable by the tip of the contact pin, through which the contact pin is sealed until contacting the anode feasible is. The opening in the cover of the front housing part, for example be covered by a peelable protective film, which when assembling the Parts is removed.

The inventive device for generating ozone, which a replaceable cartridge that covers the cell and in the anode compartment contains demineralized water, has, can also for the sterilization and disinfection of fully desalinated liquids, especially water, can be used for small Amounts. For example, a cup of drinking water can pass through Immersion of the device according to the invention its front end for few minutes by generating ozone, which is in the drinking water over the Anode compartment and its passage, be sterilized.

When training the cell with a porous cathode, a solid electrolyte membrane and an anode made of a porous or water-permeable substrate and an applied electrocatalyst can disinfect the device and disinfection of demineralized water.

When training the cell with a Cathode and a preferably diamond-coated anode can do that Device for Treat, i.e. Sterilization and disinfection, not sterilizing demineralized water (drinking water, process water) can be used.

Due to the simple structure according to the invention of the device with a tubular elongated Casing, that is open at its front end, the cathode can immediately by immersing the device activated with its front part in the water to be sterilized become. By switching on the power source via the closure part the ozone generation over the contacting of the contact pin with the anode is started. The ozone generated as well as other gases can either through the anode compartment directly if this over passages in the wall of the housing is connected to the environment, into which water to be sterilized or if the anode compartment is closed and desalinated Filled with water is about a corresponding passage the anode compartment escape into the housing compartment and from there via one Passage in the wall of the housing get into the environment and thus into the water to be sterilized.

When the cell components are used up Can the cell with cathode, electrolyte and anode in whole or partially replaced and replaced with a new cell or the entire cartridge is exchanged for a new one Cartridge filled with deionized water. Of course it is also possible, to design the disposable part as a cartridge without demineralized water, i.e. the anode compartment is not filled with deionized water and is directly above openings in the housing connected to the environment so that the ozone produced and the other gases can escape from the anode compartment.

By training a cartridge with a fully desalinated water supply in the anode compartment it becomes also possible according to the invention, the device in normal Immerse water and sterilize it. This works as long as the water in the anode compartment / cartridge remains clean.

In a device according to the invention, the from a rear housing part with contact pin and power source and a cartridge, can activation when merging of cartridge, which forms the front housing part, by means of the Contact pin, which pierces the cartridge when assembled and up is inserted into the cartridge to make contact with the anode, respectively. But it is also possible the activation of the device first after merging of all device parts by means of a separate switch-on process, for example by means of of the closure piece.

For the operation of the mini-ozone generator according to the invention for sterilizing small amounts of water in the range of 1 to 3 l are also sufficient small amounts of electricity in the range of 80 mA, which also instead of with a battery can be generated by means of a solar cell. Such For example, solar cells can be attached to the outside of the housing his.

The invention is described below the drawing exemplified.

Show it

1 a device for ozone generation with a tubular housing with a closure piece schematically in longitudinal section

2 the use of the device acc. 1 in a container filled with water for the purpose of ozo nization

3 schematically a two-part device with a front housing part as a separate cartridge and a rear housing part

4 the device according to 3 in activated composite form.

5 Supervision of a device for producing ozone in rod form

6a View of the housing of the device according to 5

6b Section AA of the housing according to 6a

6c Illustration of the bayonet of the housing according to 6a

7 View of the contact pin of the device 5

8th View of the cathode of the device 5

9a View of the closure part of the device according to 5

9b Top view of the closure part according to 9a

9c Section BB through the closure piece acc. 9b

10 Longitudinal section CC through the device according to 5

11 Top view of the front end of the housing with the cathode inserted. The device 1 for the electrochemical generation of ozone according to 1 has a continuous tubular housing 3 on whose front end 30 and rear end 31 is open. In the case 3 are starting from the front end 30 successively the cathode K , the solid electrolyte membrane F and the anode A arranged which together the electrochemical cell 2 form and form a disposable part that can be replaced after use. The contact pin closes on the anode side 4 which, for example, is made of titanium and has a spherical tip 40 for contacting the anode A having. The contact pin 4 is at its rear end 41 in contact with a power source, such as batteries 6 ,

The back end 31 the housing is by means of a closure piece 5 closed, the one hand for closing the housing 3 at the open end 31 serves and the mechanical cohesion of the parts therein and also with a switch 50 is equipped, for example by means of a compression spring 51 with the power source 6 can be connected and causes the switch-on process and activates the device. The contact pin 4 is also held and guided in the housing, for example by means of sealing rings 7a . 7b , which simultaneously seal against the housing wall and the contact pin and thus separate the interior of the housing. In this way, between the anode and the first seal following in the direction of the rear end of the housing 7b for the contact pin the anode compartment 9 educated. The anode room 9 stands for example as an opening 32 Passage formed in the wall of the housing in connection with the environment.

The device according to 1 can now be used for the sterilization of demineralized water, for example as in the 2 shown schematically in such a container 100 be immersed with its front end so that it at least with its front part including the anode compartment and the passage connecting the anode compartment with the environment 32 immersed in the fully desalinated water. The device can, for example, be in the area of its housing 3 laterally projecting closure piece 5 on the neck of the container 100 be hung up. When immersing the device 1 in the water of the container, the water can pass through 32 in the anode compartment 9 enter. The fully demineralized water of the container contacts the cathode through the open end 30 of the device. Here the water also reaches the cathode and it can get H ₂ from the open end 30 of the housing, which forms the cathode compartment, escape into the surrounding water. After switching on the power source via the closure piece, the cell is activated and ozone generation begins. The gas mixture formed on the anode side O ₂ and O ₃ passes through the anode compartment 9 and the culvert 32 in the housing wall of the housing 3 into the water to be sterilized in the container 100 ,

With a small amount of electrical energy Is it possible, a container with 1 l of fully demineralized water within a few minutes to sterilize the device according to the invention and sterilize so that it then for example for the immediate preparation of medication in a pharmacy or can be used in a laboratory.

After the sterilization is finished, the device 1 removed from the container and it is switched off. The service life of such a handy battery-operated ozone generator is a few hours. When the cell components are exhausted, the cathode, solid electrolyte membrane and anode cell can be removed from the front end of the housing 1 removed and replaced with a new cell. If the housing 3 If the cathode is empty, it can first be attached and fixed in the front area of the housing, for example by pushing it through two slots formed opposite one another in the wall of the housing, on which the solid electrolyte membrane and then the anode can be placed loosely. Then the contact pin with the seals is inserted into the housing. This is followed, for example, by the batteries and finally the closure piece 5 with switch and compression spring.

In the 3 the formation of the ozone generator for the sterilization of small amounts of water is shown in a two-part design, being the front housing part 3a the cell 2 with cathode, electrolyte, for example a solid electrolyte membrane, anode and a closed anode compartment 9 includes and the rear housing part 3b of the device 1 the contact pin 4 , the power source 6 and the closure piece 5 includes.

The front housing part 3a is preferably designed as a cartridge and has on its rear, the rear housing part 3b facing end a waterproof cover 35 through which the contact pin 4 with its top 40 is feasible. For this the cover 35 for example with an opening 36 be provided by means of a protective film 11 which can be deducted is covered. The front housing part 3a , which is designed as a separate part in the manner of a cartridge, can also have a passage in the housing wall, as in the case of the device 1 explained so that when immersed in a fully desalinated water to be sterilized it can penetrate into the anode compartment. However, it is also possible to use the anode compartment of the front housing part 3a to be completely watertight and to fill the anode compartment with fully demineralized water, as a result of which the front housing part is a cartridge filled with water. To escape the gas mixture formed O ₂ and O ₃ When the cell is activated, the cover covering the anode compartment can be used 35 , for example as a membrane, can be made watertight and open to vapor diffusion, so that the gas mixture can diffuse through, but the water remains in the anode compartment. It is also possible to use, for example, an elastomer film as a cover, through which the contact pin is passed, with gases coming from the anode space into the adjacent housing space of the housing along the puncture and from this housing space into the environment via a passage in the wall of the housing, ie the water to be treated.

For the activation and use of the two-part device 3 as in the 4 shown, the rear housing part 3b and the front housing part designed as a cartridge 3a brought together coaxially, for example via a bayonet connection or screw connection 12 , This is the contact pin 4 , which is in the rear housing part 3b by means of two spaced sealing rings 7a and 7b is guided sealed, with its front end through the cover 35 passed through until contact with the anode A , If the cartridge contains no water, the device works the same way as for 1 and 2 described. It is then expedient in the wall of the housing of the front part 3a a passage 32 trained of the anode compartment 9 connects with the environment. Then when the anode is used up, the front housing part 3a can be exchanged for a new front housing part including cell. In the event that in the anode compartment 9 Fully demineralized water is included, it is required to act as a membrane 35 trained cover to the rear housing part 3b adjoining housing interior 37 the passage for the exiting gas mixture in the form of a passage 32 to train in the wall of the housing.

When immersing the device 1 according to 4 with a cartridge - front housing part 3a , which is filled with demineralized water - can then the generated ozone / oxygen mixture through the passage 32 get into the surrounding liquid to be treated, such as water.

The definition of the cell in the front housing part 3a can, for example, with the device 1 explained. But there are numerous other ways of attaching the cell 2 possible depending on whether the cell 2 for the sterilization / disinfection of demineralized water with cathode, solid electrolyte membrane and anode or whether the cell 2 for disinfection for the purpose of water treatment, wastewater treatment or the like, ie not demineralized water, is equipped with a cathode and a diamond-coated anode and an electrolyte which is formed by the non-demineralized water. For example, the cartridge 3a have at its front end a stepped, extended bore into which the cathode is inserted and can be fixed, for example, by means of an outside or overleaf screw ring or bayonet catch.

Through a cartridge with water supply Is it possible, that the Ozone generators also e.g. can be immersed in normal water, to ozonize it, at least small amounts of liquid / water can be treated that way too.

In the 5 is a device 1 for the generation of ozone for the sterilization of demineralized water in rod form in approximately natural size, which device can be equipped with three 1.5V batteries, for example. The device encompasses the housing 3 with the front open end 32 and the rear open end 31 , which is continuously tubular. The cell is in the area of the front end 2 housed, towards which towards the rear end of the contact pin 4 followed. In this area is the wall of the housing 3 with breakthroughs 32 which face each other as a passage to the anode compartment 9 educated. Through these passages 32 the generated gases including ozone can get into the environment. The water to be treated passes through the open front end 32 also to the cathode of the cell 2 , The rear end of the case 3 is with the closure piece 5 closed, the closure piece both the closing of the housing, the mechanical cohesion of the parts housed therein and as a switch for switching the device on and off, ie for the manufacture the contact and activating the device.

In the 6a . 6b and 6c is the housing 3 of the device 1 according to 5 shown. The tubular housing 3 is at its front end 30 open and has two mutually opposing mirror-symmetrical openings 32 on that from the open end 30 of the housing 3 go out and reach into the anode compartment. These breakthroughs 32 however, only extend halfway to the open end 30 of the housing and terminate on the other half side with the formation of a web 38 from the open end 30 , This passage 32 has the shape of one P , as well as from the view of 6a and section AA 6b seen. At the rear open end 31 of the housing 3 are the guideways 39a . 39b for a bayonet lock for the locking piece 5 incorporated, these guideways in the 6c are shown in processing. The guideways 39a . 39b are provided with two locking positions I and II, the first locking position I the mechanical closure of the housing by means of the closure piece 5 serves and the second locking position II for making contact and activating the device.

In the 7 is the exemplary design of a cathode in supervision K shown the cell, wherein the cathode is designed as a closure plate and across the passages 32 of the housing 3 according to 6a and 11 is plugged and on the webs trained there 38 rests. As from the 11 can be seen, the cathode has an elliptical shape, the end regions of the long axis projecting beyond the housing and in the direction of the arrow into the holding position on the webs 38 of the housing can be brought. The cathode is made, for example, from open pores from a porous material, it has, for example, a sintered structure or is designed as a mash, and it can be made of steel, copper or bronze, for example.

On the cathode K will, see 5 , to complete the cell heart in the direction of the rear end of the housing, the solid electrolyte membrane and the anode. This is followed by the arrangement of the contact pin 4 to, for example, in the 8th is shown. The contact pin 4 has a crowned front end 40 two ring-shaped grooves on and on its shaft 41 . 42 into which sealing rings - O-rings - made of an elastomer are inserted for sealing against the housing and for electrical insulation.

In the 9a to 9c is the closure piece 5 in its construction for the two functions, namely position I, mechanical cohesion and closure of the housing and position II, making the electrical contact when switched on and in a corresponding reversal movement from position II to the position I - Switch off - shown. For the two functions according to position I and II is the locking piece 5 with two compression springs 51 . 52 equipped, the compression spring 52 in the position I the mechanical cohesion in the housing of the device 3 located parts and the closure of the housing end, as in 10 seen.

If the locking piece then continues to position II of the bayonet, see 6c , is moved, the contacting and switching on takes place via the then effective spring 51 , The compression springs 51 . 52 are in a socket inserted into the closure piece 54 with stepped holes 55a . 55b stored.

The compression springs 51 . 52 are arranged coaxially one inside the other, the compression spring 52 in the outer stepped bore 55b sits and the compression spring 51 inside the compression spring 52 is guided and in the stepped bore 55a sits and the socket 54 by means of the fastening pin 53 in the closure piece 5 is attached. The one between the socket 54 and the closure piece 5 left ring groove 56 serves to introduce the housing 3 ,

In the 10 is the overall structure of the device according to 1 shown in longitudinal section. The 10 shows the device in the closed position, but not yet switched on. In the tubular housing 3 is from the open end 30 The cathode is considered first 5 inserted, then the remaining parts of the cell, such as solid electrolyte membrane and anode. This is followed by the contact pin 5 with the seals 7a . 7b through which the contact pin is securely guided in the housing and at the same time the anode space is sealed off from the rest of the housing space. This is followed by three batteries 6 as a power source and finally the closure piece 5 with the compression springs 52 . 51 for the closed position I and the mechanical cohesion as well as for the switching position II.

When using a cell with diamond coated Anode for The treatment of process water is between the electrolytes Anode and cathode formed a gap area, the electrolyte from the process water to be treated is formed, its natural conductivity is exploited. The gap can be separated by spacers, i.e. by appropriate attachment of the anode or cathode using spacers take place or also, for example, by a porous part, which is inserted between the anode and cathode for the purpose of spacing will be enough room for leaves the electrolyte. The Parts can for example, loose in the housing inserted in a stepped hole or several stepped holes and can be attached, for example, by means of a locking ring.

For applications in which the water to be treated is in a larger vessel, such as a bottle or container, it may be appropriate to extend the rod-shaped device so that it is not attached to the opening of the container must be hung, but can be placed in the container. For this purpose, for example, the tubular housing can be made much longer and a placeholder can be arranged between the battery and the closure piece. It is also possible to make the contact pin longer in order to obtain a longer device in this way.

Claims (22)

Electrochemical ozone generator for generating ozone with an electrochemical cell which comprises a cathode, an anode and an electrolyte arranged between them, characterized in that it is designed as a mobile, hand-held and portable device and in which the cell is formed from exchangeable disposable parts. Electrochemical ozone generator according to claim 1, characterized characterized that the mobile device has a power supply device. Electrochemical ozone generator according to one of claims 1 or 2, characterized in that the Device one-piece or multi-piece tubular casing with openings at the front and rear ends of the housing, and starting in the housing from the front end of the case successively the cathode, the electrolyte, the anode, one in the longitudinal direction of the housing itself extending contact pin which can be brought into contact with the anode, an electrical power source which is in contact with the contact pin can be brought and a closure piece for the rear End of the case are arranged, followed by to the anode towards the power source opposite the Power source sealed anode space is formed in the housing and the Anode space a passage for the generated Has gases. Electrochemical ozone generator according to one of claims 1 to 3, characterized in that the Contact pin in the housing is held and spaced from the anode under department of the Anode room opposite the housing is sealed. Electrochemical ozone generator according to one of claims 1 to 4, characterized in that the Anode space over at least one in the housing trained passage with related to the environment. Electrochemical ozone generator according to one of claims 1 to 5, characterized in that the Cathode on the housing is removably held. Electrochemical ozone generator according to one of claims 1 to 6, characterized in that the cell composed of cathode, electrolyte and anode into the front open end of the case is used and by means of a fastener which on front end of the case can be fastened, positioned and held, the fastener has a central continuous recess coaxial to the tubular housing. Electrochemical ozone generator according to one of claims 1 to 6, characterized in that the casing at the front end at least one is transverse to the longitudinal extent extending bayonet-forming slot through which the Cathode for holding in the housing can be inserted and removed again. Electrochemical ozone generator according to one of claims 1 to 8, characterized in that the Closure piece with a Device for switching the electrical power source on and off Is provided. Electrochemical ozone generator according to one of claims 1 to 9, characterized in that the Closure piece with two Compression springs is fitted and in succession on the housing in two positions is movable, and one of the compression springs can be activated in any position or when moving backwards can be deactivated, the first compression spring supporting mechanical cohesion of anode, contact pin and batteries in the housing and closing the same serves and the second compression spring of the manufacture of the electrical Contact (switch on) between battery and contact pin / anode serves. Electrochemical ozone generator according to one of claims 1 to 10, characterized in that the Contact pin made of titanium or another valve metal is. Electrochemical ozone generator according to one of claims 1 to 11, characterized in that as Power source batteries or rechargeable batteries or a connector for a power supply is provided are. Electrochemical ozone generator according to one of claims 1 to 12, characterized in that as Power source is a solar cell arranged on the housing. Electrochemical ozone generator according to one of claims 1 to 13, characterized in that the casing two tubular housing parts comprises the coaxially detachable are connectable, one housing part includes the cell and the anode compartment and a housing part includes the contact pin, the power source and the closure member. Electrochemical ozone generator according to claim 14, characterized in that the Anode compartment of the front housing part forming housing part on which the rear housing part forming housing part closed end closed by a waterproof cover and the cover is a passage for itself in the anode compartment has accumulating gas mixture that can be generated by the cell. Electrochemical ozone generator according to claim 14, characterized in that the front housing part containing the cell and the anode compartment on its the rear housing part facing end with a waterproof, but open to vapor diffusion Cover (membrane) is covered. Electrochemical ozone generator according to claim 14 or 15, characterized in that the anode compartment of the front housing part filled with deionized water is. Electrochemical ozone generator according to one of claims 1 to 17, characterized in that the front housing part with cell and anode compartment is designed as a replaceable cartridge. Electrochemical ozone generator according to one of claims 14 to 18, characterized in that the Cover of the front housing part their the rear housing part facing end is formed with an opening penetrable by the tip of the contact pin through which the contact pin is sealed until contacting the anode feasible is. Electrochemical ozone generator according to claim 19, characterized in that the opening in the cover of the front housing part covered with a self-adhesive peelable protective film is. Electrochemical ozone generator according to one or more of claims 1 to 20, characterized in that a cell with a one porous trained cathode, a solid electrolyte membrane and one Anode from a porous or permeable to water Substrate and an electrocatalyst applied to it for treatment of deionized water is provided. Electrochemical ozone generator according to one or more of claims 1 to 20, characterized in that a cell containing a cell anode coated with diamond is provided.