JPS625351A - Apparatus for electrochemically sterilizing liquid - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an apparatus for electrochemically sterilizing liquids, in particular water, using an anodizing chamber through which the liquid to be sterilized flows.

PRIOR ART Such a device is disclosed in West German Patent Application No. 231
No. 1504, and D.E.C.
Fachzeitschriftfiir das
Laboratory) Volume 24 (1980)
, pages 443-456.
Paper by: 1 Dei Anoditsie Occidation φ Allut Neues Praxis Verfehren 啼Za Vassades Infection” (D
ie anodischθ0xidation als
neues Praxisverfahren zu
rWasser design).

The above-mentioned West German Patent Application No. 2311504 discloses that the gases generated during sterilization are harmful, and in order to completely avoid the formation of these harmful gases, the cathode of the anodizing chamber is made of a thin film made of a porous ceramic material. It is known to carry out filling of thin films using an alkali metal chloride solution. This additional structure represents a tight coating of the cathode, which coating requires high power or current consumption during operation of the anodizing chamber, relatively high time expenditures and replacement after a relatively short period of time. Therefore, it is costly.

Problem to be Solved by the Invention It is an object of the present invention to eliminate disadvantages of the above-mentioned type and to solve the problem of refrigerants in dental work processes, especially in dental equipment, caused by the gases generated during sterilization when used in dental work. It is an object of the present invention to create a sterilization device of the type mentioned above, in which failures or damage to the system are avoided without unnecessary equipment that would adversely affect the operation of the anodization chamber in terms of energy consumption, etc.

Means for Solving the Problems According to the invention, the problem is achieved in that the anodizing chamber is a gas-rich liquid-poor liquid, which is arranged in a dental device and through which a sterilized gas-containing liquid flows through a connecting pipe. a recombination device for recombining the gases formed when the upper outlet flows through the anodizing chamber via a conduit, the upper outlet being connected to a separation vessel having an upper outlet for the gas and a lower outlet for the liquid; from which the pipe is connected to the cleaning fountain system of the dental equipment.
stem) or a discharge, in which case the lower outlet is connected via a conduit to the refrigerant system of the dental device.

In general, the advantages obtained with the invention are that the inflow of gas into the water-consuming devices of the dental device, in particular into the refrigerant system, is avoided and the harmful gases produced during sterilization are reduced at a reduced rate.
Ie 7 and Winsel (Ledjeff and W
insel) Paper 2 I'Katalytätscher e Vasserstsfüh/Döerstsfühle Combina l--70 Mituto Zersöstpegrenung'' (Ka
tallytischerWasserstoff-/
Sauerstoff-Recombinator
mitSslbstbegrenzung) in a recombination device into liquid or water and thus rendered harmless.

Advantageous developments of the invention are indicated in the dependent claims and are explained in more detail below.

Example In the following, the invention will be explained in more detail with reference to drawing examples.

The device shown in the drawing uses a reactor-shaped anodizing chamber 1 through which the liquid to be sterilized flows and is particularly useful for sterilizing water. The oxidation chamber 1 has a tangential lower port 25 and an upper outlet 26 (FIG. 4). According to Figure 3,
The anodizing chamber 1 has a cannula-shaped outer electrode 27 and an outer electrode 2.
7 and concentric with an inner electrode 28, between said two electrodes an annular chamber 29 with an inlet 25 and an outlet 26 remains. As a result, a spiral turbulent flow of the liquid to be sterilized is formed, which leads to the removal of air bubbles which occur during the gas evolution that takes place during the passage of the liquid to be sterilized and which may adhere to the walls of the oxidation chamber 1. be done.

It is also possible to create or intensify the helical or turbulent flow by a stirring device or the like, for example by means of fixed or movable, for example rotatable, stirring blades arranged in the area of the inlet 25. The annular chamber 29 is hermetically sealed by a lid member 30 and a bottom member 31, both of which are made of an insulating material.

Represented by leads t43 and 44 connecting to electrodes 27,28. The power supply or mode of operation depends on the material selected for the anodizing chamber 1, for example stainless steel. In the embodiment shown, a direct current or a pulsed or clock-pulsed direct current or a direct current with short impulses is supplied. Direct current proportional control of the collapse current is advantageous for uniform sterilization efficiency. For example, if stainless steel is selected as the material, electrode 27.
28 is made possible, thereby preventing or reducing calcification of the oxidation chamber 1 caused by monovalent fluctuations near the cathode when the liquid to be sterilized passes through the oxidation chamber 1. be able to.

The anodizing chamber 1 and the components described below in general are also arranged in a dental device 2, indicated by dashed lines, which includes, for example, a cleaning fountain system 8, a hand-held cleaning nozzle 22
, a refrigerant system 10 and a water consuming device in the form of a tartar removal device 24 .

The dental device 2 may also be designed in the form of a connecting housing, as is known from DE 30 28 550, for which sterilization is performed using other methods, namely using chemical sterilization fluids.

A sterile gas-containing liquid leaves the anodizing chamber 1 at the upper outlet 26.
and enters the separating vessel 3 via the connecting pipe 18, which has an upper outlet 4 for gas-poor liquids and a lower outlet 5 for gas-only or gas-free liquids, in which case the upper Exit 4 passes through ￥f19,
A recombination device 6 is reached, which recombines the gases formed during passage through the anodization chamber, from which the outlet tube T reaches the cleaning fountain system 8 or the outlet 9 of the dental device 2, and in that case a lower outlet 5. reaches the refrigerant system 10 of the dental device 2 via the conduit 20f.

According to FIG. 5, the separation vessel 3 is connected to the connecting pipe 18 and has an upper inlet sleeve 32 for sterile gas-containing liquids.
has. Below the lower outlet 5, the separating vessel 3 has a hopper-like lime trap 11 for the lime that may optionally occur in the oxidation chamber 1 of the device. In its deepest part,
The lime trap 11 is provided with a lime outlet sleeve 34 which is closed off (by a lid 33).

According to FIGS. 1, 2 and 6, a degassing container 12 is arranged in the recombination bag e6.

In this case, the recombination device 6 is actually formed as a lid-shaped upper closure of the degassing container 12.

According to FIG. 6, the degassing vessel 12 has an inlet 35 connected to a conduit 19 extending from the separation vessel 3 and an outlet 36t- connected to the outlet line 7 connected to the cleaning fountain system 8 or to the outlet 9. have

A partition wall 37, preferably hook-shaped, is arranged inside the degassing vessel 12 and is arranged transversely to the flow direction.
This partition #) ends at the bottom of the degassing container, respectively.
8 or the recombination device 6. The partition wall 37 has an overflow port 39 near its upper end, ie, approximately at the upper limit height of the outlet 36. Liquid level in degassing container 12? :40. Since the outlet 36 is lower than the liquid level 40, a gas collection chamber 41 for harmful gases is formed above the liquid level 40, separated by a partition i37.

In the embodiment according to FIGS. 1 and 6, the degassing vessel 1
2 is designed as a pressureless boiler or instantaneous water heater 13 for heating the liquid entering the cleaning fountain system 8 and is connected to the cleaning fountain system 8 by an outlet pipe T. For this reason, it is formed, for example, as a sheet-like heater, and is heated to 50°C.
A resistance heater 42 is placed in the degassing vessel 12, providing a temperature of . In the embodiment according to FIG. 2, the outlet pipe 7 reaches the outlet 9 directly and the degassing container 12 is not heated.

Harmful gases generated during the sterilization process in the anodization chamber 1, such as detonation air, remain in the water during the circulation carried out in the recombination chamber 6 and pass along with the water to be sterilized to the oxidation chamber 1 via the inlet 25.
The gas entering therein must be led off via an outlet pipe, for example to the outlet 9.

If harmful gases arise from any location in the sterilization device, an additional recombination to circulate this leaking gas into the water as well as to circulate this leaking gas as high as possible in the device 2 according to FIG. A device 14 is provided.

As is clear from FIGS. 1 and 2, the separation conduit 2
A circulation pump 16 and an instantaneous water heater 1T are arranged in the water heater 0. In this case, the circulation pump 16 is activated in an auxiliary manner.

From the lower outlet 5 or the conduit 16 connected to the circulation pump 16, a branch pipe 2 is connected to the hand-held cleaning nozzle 22.
1 is branched.

Furthermore, a conduit 23 leading to a tartar removal device 24 is connected to the circulation pump 16 .

According to FIGS. 1 and 2, the conduit 19 is connected to a consumer device of the cleaning fountain system 8, for example a mouth rinse fountain.
Lne), mouth rinse water injection pipe (Mundglasf
At the start of operation of the iilleitung), a stop valve 25 is provided which releases the liquid flow through the conduit 19 and at the same time releases the supply of the liquid to be sterilized into the anodizing chamber 1, which valve is a solenoid valve, preferably an electromagnetic valve. It is formed by a pressure valve.

[Brief explanation of drawings]

1 is a system diagram schematically illustrating an embodiment of the device according to the invention; FIG. 2 is a system diagram schematically illustrating a modification of the embodiment according to FIG. 1; FIGS. and a vertical cross-sectional view and a cross-sectional view thereof taken along the line IV-ff showing the structure of one embodiment of the anodizing chamber in FIG. 2, respectively, and FIG. FIG. 6 is a vertical cross-sectional view showing the structure of an example of the recombination device in FIG. 1. FIG. DESCRIPTION OF SYMBOLS 1...Anodizing chamber, 2...Dental equipment, 3...Separation container, 4-...Upper outlet, 5...Lower outlet, 6...
・Recombination device, 7... Outlet pipe, 8-... Cleaning fountain system,
9... Discharge port, 10-... Refrigerant system, 11... Lime collection section, 12... Degassing container, 13... Instantaneous water heater, 14... Additional recombination device, 16... Circulation pump, 17... Instantaneous water heater, 22... Hand-held cleaning nozzle, 24... Tartar removal device, 25a... Stop valve, 2
7... Outer electrode, 28... Inner electrode, 29... Annular chamber, 30... Lid member, 31... Bottom member, 34-...
- Lime outlet sleeve, 37... Partition wall, 39...
Overflow port, 40...Liquid level, 41...Gas collection chamber ■Inventor Konstantin Reh Toyf Eta, Federal Republic of the Soviet Union 6 ■Inventor David Furtsa Toyf Eta, Federal Republic of the Soviet Union 21 0 Inventor Georg Wenger Schiesse, Federal Republic of Germany 6

Claims (1)

[Claims] 1. An apparatus for sterilizing a liquid using an anodizing chamber (1) through which a liquid to be sterilized flows, the anodizing chamber (1) comprising:
An upper outlet (4) for gas-rich liquids and a lower outlet (4) for gas-poor liquids are arranged in the dental device (2) and through which a sterile gas-containing liquid flows via a connecting tube (18). a recombination device for recombining the gases formed when the upper outlet (4) flows through the anodization chamber (1) via the conduit (19); (6), from which an outlet pipe (7) is connected to the cleaning fountain system (8) or to the discharge part (9) of the dental device (2), and in which case the lower outlet (5) is connected to the conduit ( 20) to the refrigerant system (10) of the dental device (2). 2. Device for electrochemically sterilizing liquids according to claim 1, characterized in that the separation container (3) has a lime trap (11) below the lower outlet (5). 3. Electrochemical sterilization of liquids according to claim 1 or 2, characterized in that a degassing container (12) is arranged in the recombination device (6). device to do. 4. Claim 1, characterized in that the degassing container (12) is designed as an instantaneous water heater (13).
An apparatus for electrochemically sterilizing the liquid according to any one of Items 1 to 3. 5. Additional recombination device (1) inside the dental device (2)
4). The device for electrochemically sterilizing a liquid according to any one of claims 1 to 4. 6. Lower outlet (5) of separation vessel (3) and refrigerant system (1
0), in which a circulation pump (16) and an instantaneous water heater (17) are arranged in the conduit (20) for a continuous flow of gas-poor liquid between An apparatus for electrochemically sterilizing the liquid according to any one of items 1 to 5. 7. A branch pipe (21) connected to a hand-held cleaning nozzle (22) is branched from the lower outlet (5) of the separation container (3), as claimed in claim 6. A device that electrochemically sterilizes liquids. 8. According to any one of claims 6 or 7, characterized in that the circulation pump (16) is connected to a conduit (23) that is connected to the tartar removal device (24). A device for electrochemically sterilizing liquids. 9. The conduit (19) releases the liquid flow through the conduit (19) when the cleaning fountain system (8) is put into use and at the same time supplies the liquid to be sterilized to the anodizing chamber (1). 9. A device for electrochemically sterilizing a liquid according to any one of claims 1 to 8, characterized in that it has a stop valve (25a) for releasing the sterilization. 10. The apparatus for electrochemically sterilizing liquid according to claim 9, characterized in that the stop valve (25a) is a solenoid valve.