CN110665032A - High-concentration ozone water sterilizer for dental handpiece sterilization and sterilization method - Google Patents

High-concentration ozone water sterilizer for dental handpiece sterilization and sterilization method Download PDF

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Publication number
CN110665032A
CN110665032A CN201910808790.9A CN201910808790A CN110665032A CN 110665032 A CN110665032 A CN 110665032A CN 201910808790 A CN201910808790 A CN 201910808790A CN 110665032 A CN110665032 A CN 110665032A
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China
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water
ozone
water tank
tank
dental handpiece
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陈天
敖卫
姚欢
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Shanghai Ozer Water Purification Technology and Development Co Ltd
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Shanghai Ozer Water Purification Technology and Development Co Ltd
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2/00Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor
    • A61L2/16Methods or apparatus for disinfecting or sterilising materials or objects other than foodstuffs or contact lenses; Accessories therefor using chemical substances
    • A61L2/18Liquid substances or solutions comprising solids or dissolved gases
    • A61L2/183Ozone dissolved in a liquid
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS 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
    • A61L2202/00Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
    • A61L2202/20Targets to be treated
    • A61L2202/24Medical instruments, e.g. endoscopes, catheters, sharps

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Apparatus For Disinfection Or Sterilisation (AREA)
  • Water Treatment By Electricity Or Magnetism (AREA)

Abstract

The invention provides a high-concentration ozone water sterilizer and a sterilization method aiming at dental handpiece sterilization, wherein the sterilizer comprises: the raw water tank is provided with a water return port and a water tank water outlet; a water inlet of the reverse osmosis water purification system is connected with a water outlet of the water tank, and a concentrated water outlet of the reverse osmosis water purification system is connected with a water return port; the PEM low-voltage electrolysis module is connected with the reverse osmosis water purification system, carries out electrolysis treatment on purified water respectively and then outputs ozone water and hydrogen water in two paths, the ozone water is conveyed to a dental handpiece water path through a dental handpiece water path water inlet, and the hydrogen water is conveyed to the removable raw water tank through a water return port; the disinfection water tank is used for placing a dental handpiece; the ozone water digestion water tank is connected with the water return port, and a conduction device is arranged between the ozone water digestion water tank and the disinfection water tank. The invention can continuously and circularly generate ozone water and clean the dental handpiece with the ozone water.

Description

High-concentration ozone water sterilizer for dental handpiece sterilization and sterilization method
Technical Field
The invention relates to medical ozone water sterilization, in particular to a high-concentration ozone water sterilizer and a sterilization method for dental hand instruments.
Background
Ozone (O)3) Used as one of the strongest oxidants for sterilization, disinfection, pesticide degradation, environmental management and the likeThe field has been quite effective. Especially, the ozone has strong oxidizing ability, safe and thorough sterilization, does not pollute the environment and is finally reduced into oxygen.
The development of solid Polymer Electrolyte Membrane (PEM) technology has promoted the low-pressure Electrolysis process to exhibit unique advantages, including concentrations as high as 18% -20%; the raw material is relatively pure water, and the byproduct is only H2、O2And no by-product pollution is caused. Besides, the PEM low-voltage electrolyzer uses direct current low voltage, is safe to operate, simple and small in equipment, high in cost performance and wide in application occasions.
The rapid development of PEM low-pressure electrolysis technology has made the use of such a technology in continuous innovation. The existing devices generally place pure water as an electrolyte in a closed tank and use ozone gas generated by the anode. Such a usage method is suitable for situations where ozone gas is used for sterilization, and is not suitable for the requirements of ozone water sterilization, and if ozone water is used, a gas-liquid mixing device is further used to highly mix the generated ozone gas with the target sterilization water, so that the usage equipment and steps are increased for users and equipment suppliers, and the usage is very inconvenient.
The Dental Unit water channel (DUWL) mainly has the function of providing treatment water for devices such as a mobile phone, a three-purpose gun and the like in the treatment process and has the functions of flushing and cooling. Because the DUWL consists of narrow and long pipelines and is easy to be polluted to cause biofilm formation, pathogenic bacteria planted in the DUWL can enter the oral cavity of a patient along with water flow, or aerosol generated by an ultrasonic dental scaler and a high-speed turbine handpiece is inhaled into the respiratory tract of the patient or medical staff, so that the risk of dental treatment infection is increased. DUWL contamination is therefore one of the important pathways leading to dental cross-infection. There is a lack of specific sterilization instruments for DUWL sterilization. The existing waterway is difficult to sterilize and is a potential infection risk for patients. The internal waterway structure of a dental comprehensive treatment table waterway (DUWL) is complex, the existing disinfector generally cannot disinfect the DUWL, part of disinfectors installed in the factory of a dental chair manufacturer only use chlorine dioxide and other chemical disinfectors, and the dental chair sterilizer has the defects of manual addition of disinfectors, complex operation, byproducts in disinfection and the like.
Therefore, there is a need for an apparatus that can directly, conveniently and quickly produce high concentration ozone water for disinfection, while not only solving the DUWL sterilization problem, but also specifically using ozone gas-liquid mixing in dental clinics with high efficiency.
Disclosure of Invention
The invention can solve the problems of low concentration of ozone, more byproducts and complex structure generated by using the traditional high-voltage discharge to generate ozone, and simultaneously solves the problem that the existing low-voltage electrolysis method for generating ozone needs to use gas-liquid mixing equipment.
The specific scheme is as follows:
a high concentration ozone water sterilizer for dental handpiece sterilization, comprising:
the removable raw water tank is provided with a water return port and a water tank water outlet;
the water inlet of the reverse osmosis water purification system is connected with the water outlet of the water tank, and the concentrated water outlet of the reverse osmosis water purification system is connected with the water return port;
the water inlet of the PEM low-voltage electrolysis module is connected with the purified water outlet of the reverse osmosis water purification system, the PEM low-voltage electrolysis module respectively performs ozone electrolysis treatment and hydrogen electrolysis treatment on purified water and then outputs ozone water and hydrogen water in two paths, the ozone water is conveyed to a dental handpiece water path through a dental handpiece water path water inlet, and the hydrogen water is conveyed to the removable raw water tank through the water return port;
the disinfection water tank is used for placing the dental handpiece;
the water outlet of the ozone water digestion water tank is connected with the water return port, and a conduction device is arranged between the ozone water digestion water tank and the disinfection water tank.
Furthermore, the water return port and the water tank water outlet are arranged on the left and right sides of the bottom of the removable raw water tank, and a partition plate is erected in the removable raw water tank and between the water return port and the water tank water outlet.
Furthermore, the reverse osmosis water purification system comprises a PP filter element, a booster pump, an active carbon filter element and an RO filter element which are sequentially connected in the water flow direction;
a combined electromagnetic valve is arranged between the concentrated water outlet and the water return port of the RO filter element.
Furthermore, the PEM low-voltage electrolysis module consists of an anode cavity and a cathode cavity with two inlets and two outlets;
the anode cavity carries out ozone electrolysis treatment on the purified water to generate ozone water and then transmits the ozone water to the disinfection water tank, and the cathode cavity carries out hydrogen electrolysis treatment on the purified water to generate hydrogen water and transmits the hydrogen water to the removable raw water tank through the water return port;
and an ORP detector is arranged on the conveying pipeline of the anode cavity.
Furthermore, a water path solenoid valve system is also arranged between the reverse osmosis water purification system and the PEM low-voltage electrolysis module;
the water path electromagnetic valve system comprises a reverse osmosis water purification system and a first one-way valve between PEM low-voltage electrolysis modules, an electromagnetic valve and a fine-adjustment flow valve are arranged between the first one-way valve and a water inlet of the cathode cavity, and the fine-adjustment flow valve is used for controlling the water quantity entering the cathode cavity.
Furthermore, a cover plate is arranged at the top of the disinfection water tank, an exhaust port is formed in the cover plate, and a tail gas heater and a tail gas catalyst are arranged at the exhaust port from bottom to top.
Further, the ozone water digestion water tank is arranged below the disinfection water tank, and an ozone water adsorption filter element is arranged on a channel between the ozone water digestion water tank and the disinfection water tank;
an ozone water heater and an ozone water stirrer are arranged in the ozone water digestion water tank, the ozone water stirrer is arranged at a water outlet of the ozone water digestion water tank, and a second one-way valve is further arranged between the water outlet of the ozone water digestion water tank and the removable raw water tank.
A method for disinfecting a dental handpiece based on the ozone water disinfector comprises the following steps:
connecting an ozone water output pipeline of the PEM low-voltage electrolysis module with a water inlet of a dental handpiece water channel, and placing the dental handpiece in a disinfection water tank;
raw water of the removable raw water tank is conveyed to the reverse osmosis water purification system from a water tank water outlet;
after the reverse osmosis water purification system purifies raw water, purified water is conveyed to a PEM low-voltage electrolysis module, and discharged concentrated water is conveyed to the removable raw water tank through the water return port;
the PEM low-voltage electrolysis module is used for respectively carrying out ozone electrolysis treatment and hydrogen electrolysis treatment on purified water and then outputting ozone water and hydrogen water in two paths, wherein the ozone water is used for cleaning a dental handpiece water path and then flows out of a water outlet of the dental handpiece water path to a disinfection water tank, and the hydrogen water is conveyed to the removable raw water tank through the water return port;
after the water in the disinfecting water tank flows into the ozone water digestion water tank for digestion treatment, the digested ozone water is conveyed to the removable raw water tank through the water return port by the ozone water digestion water tank.
Further, the method further comprises: and tail gas generated by ozone in the disinfection water tank is heated and catalytically treated and then discharged.
The invention can solve the problems of low concentration of ozone, more byproducts and complex structure generated by using the traditional high-voltage discharge to generate ozone, and simultaneously solves the problem that the existing low-voltage electrolysis method for producing ozone needs to use gas-liquid mixing equipment, and has the following beneficial effects:
1. the traditional high-voltage discharge method for producing ozone has the advantages that the concentration of the ozone produced by ozone is low, the number of byproducts is large, the structure is complex, the PEM low-voltage electrolyzer is integrated into the whole sterilization system, the needed size is small, and the concentration of the produced ozone is high.
2. The existing systems on the market, which use PEM low-pressure electrolysers for disinfection, use pure water as the electrolyte in a closed tank and use ozone gas generated by the anode. Such a usage method is suitable for situations where ozone gas is used for sterilization, and is not suitable for the requirements of ozone water sterilization, and if ozone water is used, a gas-liquid mixing device is further used to highly mix the generated ozone gas with the target sterilization water, so that the usage equipment and steps are increased for users and equipment suppliers, and the usage is very inconvenient. According to the invention, the reverse osmosis water purification system is arranged in the whole equipment, the prepared reverse osmosis pure water is directly used as an electrolytic stock solution, the electrolytic stock solution can be used as an electrolyte to prepare ozone and hydrogen, and can also be directly mixed in the anode cavity to generate ozone water, the mixed ozone water is directly used for disinfection, and the ORP value can reach 900 plus materials 1200ppm through detection, so that the high-efficiency sterilization and disinfection can be realized, and therefore, the problem of gas-liquid mixing can be solved.
3. The existing water sterilizing equipment generally needs to be connected with a water inlet pipe and a water outlet pipe, and even if the existing water sterilizing equipment is free from installation, the sterilized water needs to be poured at every time and cannot be reused, so that the existing water sterilizing equipment is inconvenient for users. The invention can adsorb and digest the sterilized ozone water by arranging the removable raw water tank, the sterilization water tank and the ozone water digestion water tank, and then the ozone water enters the raw water tank for recycling.
4. The dental comprehensive treatment table water channel (DUWL) is complex in internal water channel structure, an existing sterilizer cannot sterilize the DUWL generally, part of sterilizers installed in tooth chair factories only use chlorine dioxide and other chemical disinfections, the defects that disinfectors need to be added manually, the operation is complex, the disinfection has byproducts and the like are overcome, the dental comprehensive treatment table water channel can comprehensively solve the problems by using an installation-free scheme, an ozone technology, a digestion technology and an electric control scheme, and the dental comprehensive treatment table water channel can be sterilized in a targeted mode after being connected into the DUWL pipeline by using a specific tee joint.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
FIG. 1 is a schematic view of a high concentration ozone water sterilizer for dental handpiece sterilization according to the present invention;
FIG. 2 is a process flow diagram of the present invention.
Detailed Description
In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.
In the following description, for the purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.
As shown in fig. 1, the present invention provides a high concentration ozone water sterilizer for dental handpiece sterilization, wherein a three-way valve 64 is provided on a water supply line of a dental handpiece 68, and the three-way valve includes:
the removable raw water tank 1 is provided with a water return port 12 and a water tank water outlet 13;
a water inlet of the reverse osmosis water purification system 2 is connected with a water outlet 13 of the water tank, and a concentrated water outlet of the reverse osmosis water purification system 2 is connected with a water return port 12;
the water inlet of the PEM low-voltage electrolysis module 4 is connected with the purified water outlet of the reverse osmosis water purification system 2, the PEM low-voltage electrolysis module 4 respectively performs ozone electrolysis treatment and hydrogen electrolysis treatment on the purified water, then outputs ozone water and hydrogen water in two paths, and the hydrogen water is conveyed to the removable raw water tank 1 through the water return port 12;
a sterile water tank 7 for placing the dental handpiece 68;
the ozone water digestion water tank 8, the water outlet of the ozone water digestion water tank 8 is connected with the water return port 12, and a conducting device 71 is arranged between the ozone water digestion water tank 8 and the disinfection water tank 7.
Fig. 1 shows that 4 dental handpieces 65, 66, 67, 68 are placed in the disinfection water tank 7, and correspondingly, three- way valves 61, 62, 63, 64 are arranged on the water paths 6 of the 4 dental handpieces for connecting with ozone water supply lines of the PEM low-pressure electrolysis module 4.
The circulation process is as follows: purified water generated after water in the removable raw water tank 1 is filtered by the reverse osmosis water purification system 2 enters the PEM low-voltage electrolysis module 4 in two paths, and the PEM low-voltage electrolysis module 4 respectively performs ozone electrolysis treatment on the purified water, performs hydrogen electrolysis treatment on the purified water, and then respectively conveys the purified water to the disinfection water tank 7 and the removable raw water tank 1. When the ozone water disinfection device is used, dental handpieces are placed in the disinfection water tank 7, the three-way valve on the dental handpiece water channel 6 is connected with the ozone water output pipeline of the PEM low-voltage electrolysis module 4, the rest port of the three-way valve is closed, so that ozone water can only enter the dental handpiece water channel 6 from the water inlet and flows out of the dental handpiece water outlet to the disinfection water tank 7, the inner cavity of the dental handpiece water channel 6 is disinfected by the ozone water, and the disinfected water is discharged to the removable raw water tank 1 after being digested by the ozone water digestion water tank 8.
The invention adopts a scheme of no water tank installation, namely, a user does not need to connect a water inlet pipe and a water outlet pipe, and the subsequent continuous operation can be realized by manually adding tap water for the first time.
The high-concentration ozone water prepared from the PEM low-voltage electrolysis module 4 is introduced into the dental treatment table through a dental handpiece water channel 6 and is required to be connected with an original water pipe in the dental treatment table through a specific tee joint, and the general dental treatment table is provided with four water channels which are respectively connected with four handpieces. Insert the tee valve aperture that equipment upper portion set up respectively with these four ways water routes in, can diagnose the water pipe with ozone water through the dentistry that needs the disinfection, realize the function of disinfecting to the aperture can be airtight, can not reveal tail gas in the air.
In an alternative embodiment, the water return port 12 and the water tank outlet 13 are arranged on the left and right sides of the bottom of the removable raw water tank 1, and a partition plate 11 is erected in the removable raw water tank 1 and between the water return port 12 and the water tank outlet 13. The partition plate 11 is used for separating the water return port 12 from the water tank outlet 13, and preventing the conveyed concentrated water from being discharged through the water tank outlet 13. And the water tank can be extracted, so that water can be taken from a tap water port after extraction, and the water can be poured out under the condition of long-term nonuse. Preferably, the volume of the removable raw water tank 1 is 3L, the water tank is a cuboid, and the area of the bottom of the water tank is 200cm2The height is 15cm, and the inside division board 11 that is equipped with of water tank is used for separating the water tank for former water and mixed water tank, mixes the reuse water of water tank including the back of disinfecting, reverse osmosis, negative pole water, treats that the reuse water accumulates after the intensive mixing to a take the altitude, overflows to former water tank through the baffle. Preferably, the height of the partition board is 8-12 cm.
The lower part of the removable raw water tank 1 is respectively provided with a water return port 12 and a water tank water outlet 13, the waterway connectors on the lower part of the water tank and the upper part of the base are respectively provided with a stop spring, the waterway can be compressed and unobstructed when the water tank is inserted, water inlet and outlet are realized, the waterway can be respectively stopped after the water tank is taken out, and the waterway of the base and the bottom of the water tank can be stopped without water leakage after the water tank is taken out. As a preferred scheme, the invention adopts a scheme of no-mounting water tank, but the invention is also suitable for a scheme of no-mounting, namely a water inlet and a water outlet are respectively connected with a water inlet and a water outlet of a water channel to a water inlet and outlet pipe of tap water, as shown in the figure, the mode can be suitable for occasions where the water source is close to a use place and is convenient to connect the water channel. The invention also protects the connection mode.
In an optional embodiment, the reverse osmosis water purification system 2 adopts a reverse osmosis water purification module, and comprises a PP filter element 21, a booster pump 24, an activated carbon filter element 22, and an RO filter element 23, which are connected in sequence in the water flow direction. Wherein, a combined electromagnetic valve 25 is arranged between the concentrated water outlet of the RO filter element 23 and the water return port 12. As a water source of the PEM low-voltage electrolyzer, purified water with certain purity is required, and as a reverse osmosis system with mature technology, the reverse osmosis water electrolyzer is convenient and reliable, can quickly purify municipal tap water into purified water with high purity and provides the purified water for the PEM electrolyzer to electrolyze ozone. The other path of concentrated water passes through the combined electromagnetic valve 25 and then is conveyed to the removable raw water tank 1 through the water return port 12, and can be reused in the raw water tank. As a preferable scheme, the invention adopts a 50G reverse osmosis system, and the water yield is 150-200 ml/min. However, reverse osmosis systems of different flow rates may be used depending on the different water usage and flow rate requirements of the user.
In an alternative embodiment, the PEM low-pressure electrolysis module 4 consists of a two-in two-out anode chamber 41 and a cathode chamber 42; the anode cavity 41 performs ozone electrolysis on the purified water to generate ozone water, and then the ozone water is conveyed to the dental handpiece water channel 6, and the cathode cavity 42 performs hydrogen electrolysis on the purified water to generate hydrogen water, and then the hydrogen water is conveyed to the water return port 12. Preferably, the ORP detector 5 is disposed on the delivery line of the anode chamber 41. Wherein the anode cavity 41 generates high-concentration ozone gas when the PEM low-voltage electrolysis module 4 works, the high-concentration ozone gas is directly mixed in the cavity to generate high-concentration ozone water under the drive of low-flow-rate water flow, and ORP (oxidation reduction potential) can reach 900-1200ppm through online detection by the ORP detector 5, so that the high-concentration ozone water belongs to high-concentration ozone water and can be efficiently sterilized and disinfected. The cathode cavity 42 generates hydrogen, the hydrogen is mixed with the low-flow-rate water subjected to flow limitation and then is conveyed to the removable raw water tank 1 through the water return port 12, and the hydrogen is insoluble in water and is discharged in the removable raw water tank 1 without affecting the quality of raw water. It should be noted that, hydrogen is inevitably generated in the process of generating ozone water by the current PEM low-pressure electrolysis module 4, so that the hydrogen generated by the cathode cavity 42 is connected to the removable raw water tank 1, and the activity of water in the removable raw water tank 1 can be improved.
In an optional embodiment, a water way solenoid valve system is also arranged between the reverse osmosis water purification system 2 and the PEM low-pressure electrolysis module 4; the waterway electromagnetic valve system comprises a first one-way valve 31 arranged between the reverse osmosis water purification system 2 and the PEM low-voltage electrolysis module 4, an electromagnetic valve 3 and a fine-adjustment flow valve 32 are arranged between the first one-way valve 31 and a water inlet of the cathode cavity 42, and the fine-adjustment flow valve 32 is used for controlling the water quantity entering the cathode cavity 42. In the actual working process, the pure water generated by the reverse osmosis water purification module is divided into two paths after passing through the first one-way valve 31, one path enters the anode cavity 41 of the subsequent PEM module, and the other path enters the cathode cavity 42 after passing through the electromagnetic valve 3 and the micro-adjustment flow valve 32, wherein the micro-adjustment flow valve 32 limits the water amount entering the cathode cavity, so that the water amount entering the two cavities can be distributed. The waterway electromagnetic 3 valve is opened when the PEM low-voltage electrolysis module 4 works, and is closed after the work is finished, the waterway of the cathode cavity 42 is cut off, and all reverse osmosis pure water is introduced into the anode cavity 41 to play a role in flushing the anode cavity and discharge the residual anode ozone water.
In an alternative embodiment, the top of the sterilizing water tank 7 is provided with a cover plate, the cover plate is provided with an exhaust port, and the exhaust port is provided with an exhaust gas heater 71 and an exhaust gas catalyst 72 from bottom to top. The water tank upper cover plate is provided with a gap for a dental handpiece water path to pass through besides the air exhaust port. Ozone is unstable and volatile in water, a tail gas treatment device is required to be added at an exhaust port of the disinfection water tank 7, and the tail gas heater 71 can be heated to 200-300 ℃ high temperature in a short time by using a PTC heater, so that ozone can be instantly decomposed. While an exhaust gas catalyst 72, preferably manganese dioxide, is added above the exhaust gas heater 71 to continue to decompose the incompletely decomposed ozone gas.
In an alternative embodiment, the ozone water digestion water tank 8 is arranged below the sterilizing water tank 7, and an ozone water adsorption filter element 82 is arranged on a channel between the ozone water digestion water tank 8 and the sterilizing water tank 7; an ozone water heater 83 and an ozone water stirrer 84 are arranged in the ozone water digestion water tank 8, and the ozone water stirrer 84 is arranged at the water outlet of the ozone water digestion water tank 8. Preferably, a second one-way valve 85 is further arranged between the water outlet of the ozone water digestion water tank 8 and the removable raw water tank 1. Ozone water flowing out of a water outlet of the dental handpiece flows into an ozone water digestion water tank to start an ozone water digestion function: ozone water in the disinfection water tank 7 is firstly led into an ozone water adsorption filter element 82 through an inclined baffle 81 arranged above the water tank, and the filter element is preferably a carbon fiber filter element which can effectively adsorb ozone in water. After the water flows into the ozone water digestion water tank 8, the ozone water heater 83 and the ozone water agitator 84 arranged at the bottom of the water tank start to work, and after the ozone water heater 83 raises the water temperature, the solubility of ozone in water can be reduced, and the ozone water agitator 84 works to further increase the precipitation of gas. The digested ozone water can reach the standard of continuous use, and is connected with the water return port 12 through the second one-way valve 85, so that the digested ozone water is introduced into the raw water tank 1, mixed and continuously used as raw water for the next work.
Meanwhile, the invention also provides a disinfection method based on the installation-free ozone water disinfection machine, which mainly comprises the following steps:
s1, connecting an ozone water output pipeline of the PEM low-voltage electrolysis module 4 with a water inlet of a dental handpiece water path, and placing the dental handpiece in a disinfection water tank 7;
s2, the raw water in the removable raw water tank 1 is delivered to the reverse osmosis water purification system 2 from the water tank outlet 13.
S3, after the raw water is purified by the reverse osmosis water purification system 2, the purified water is conveyed to the PEM low-voltage electrolysis module 4, and the discharged concentrated water is conveyed to the removable raw water tank 1 through the water return port 12.
S4, the PEM low-voltage electrolysis module 4 respectively performs ozone electrolysis treatment and hydrogen electrolysis treatment on the purified water and outputs ozone water and hydrogen water in two paths. The output ozone water enters the dental handpiece water channel from the dental handpiece water channel water inlet to clean the inside, then flows out of the dental handpiece water channel water outlet to the disinfection water tank 7, and hydrogen water is conveyed to the removable raw water tank 1 through the water return port 12.
S5, after the water in the disinfection water tank 7 flows into the ozone water digestion water tank 8 for digestion treatment, the digested ozone water is conveyed to the removable raw water tank 1 through the water return port 12 by the ozone water digestion water tank 8. Wherein optionally, the tail gas generated by the ozone in the disinfection water tank 7 is discharged after being heated and catalyzed.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims (9)

1. A high concentration ozone water sterilizer for dental handpiece sterilization, comprising:
the water tank comprises a removable raw water tank (1), wherein the removable raw water tank (1) is provided with a water return port (12) and a water tank water outlet (13);
the water inlet of the reverse osmosis water purification system (2) is connected with the water outlet (13) of the water tank, and the concentrated water outlet of the reverse osmosis water purification system (2) is connected with the water return port (12);
the water inlet of the PEM low-voltage electrolysis module (4) is connected with the purified water outlet of the reverse osmosis water purification system (2), the PEM low-voltage electrolysis module (4) respectively performs ozone electrolysis treatment and hydrogen electrolysis treatment on the purified water and then outputs ozone water and hydrogen water in two paths, the ozone water is conveyed to the dental handpiece water path through the dental handpiece water path water inlet, and the hydrogen water is conveyed to the removable raw water tank (1) through the water return port (12);
a sterile water tank (7) for placing the dental handpiece (68);
the ozone water digestion water tank (8), the water outlet of the ozone water digestion water tank (8) is connected with the water return port (12), and a conduction device (71) is arranged between the ozone water digestion water tank (8) and the disinfection water tank (7).
2. The sterilizer for high concentration ozone water for dental handpiece sterilization according to claim 1, wherein a return port (12) and a water tank outlet port (13) are disposed right and left at both sides of the bottom of the removable raw water tank (1), and a partition plate (11) is erected in the removable raw water tank (1) between the return port (12) and the water tank outlet port (13).
3. The high concentration ozone water sterilizer aiming at dental handpiece sterilization as claimed in claim 1, wherein the reverse osmosis water purification system (2) comprises a PP filter element (21), a booster pump (24), an activated carbon filter element (22) and an RO filter element (23) which are connected in sequence in the water flow direction;
a combined electromagnetic valve (25) is arranged between the concentrated water outlet and the water return port (12) of the RO filter element (23).
4. The high concentration ozone water sterilizer for dental handpiece sterilization according to claim 1, wherein the PEM low pressure electrolysis module (4) consists of a two-in two-out anode cavity (41) and a cathode cavity (42);
the anode cavity (41) performs ozone electrolysis treatment on the purified water to generate ozone water, and then the ozone water is conveyed to the disinfection water tank (7), the cathode cavity (42) performs hydrogen electrolysis treatment on the purified water to generate hydrogen water, and the hydrogen water is conveyed to the removable raw water tank (1) through the water return port (12);
an ORP detector (5) is arranged on a conveying pipeline of the anode cavity (41).
5. The high-concentration ozone water sterilizer for dental handpiece sterilization according to claim 4, characterized in that a water path solenoid valve system is further provided between the reverse osmosis water purification system (2) and the PEM low-pressure electrolysis module (4);
the water route solenoid valve system is including locating reverse osmosis water purification system (2) with first check valve (31) between PEM low pressure electrolysis module (4) first check valve (31) with be provided with solenoid valve (3) and fine setting flow valve (32) between negative pole cavity (42) water inlet, fine setting flow valve (32) are used for the control to get into the water yield of negative pole cavity (42).
6. The high concentration ozone water sterilizer for dental handpiece sterilization according to claim 1, wherein a cover plate is provided on the top of the sterilizing water tank (7), the cover plate is provided with an exhaust port, and an exhaust gas heater (71) and an exhaust gas catalyst (72) are provided at the exhaust port from bottom to top.
7. The high concentration ozone water sterilizer for dental handpiece sterilization according to claim 1, wherein the ozone water digestion water tank (8) is disposed below the sterilizing water tank (7), and an ozone water adsorption filter (82) is disposed on a passage between the ozone water digestion water tank (8) and the sterilizing water tank (7);
an ozone water heater (83) and an ozone water stirrer (84) are arranged in the ozone water digestion water tank (8), the ozone water stirrer (84) is arranged at a water outlet of the ozone water digestion water tank (8), and a second one-way valve (85) is further arranged between the water outlet of the ozone water digestion water tank (8) and the removable raw water tank (1).
8. A method of disinfecting a dental handpiece based on the ozone water sterilizer of any of claims 1-7, comprising the steps of:
connecting an ozone water output pipeline of the PEM low-voltage electrolysis module (4) with a water inlet of a dental handpiece water channel, and placing the dental handpiece in a disinfection water tank (7);
raw water in the removable raw water tank (1) is conveyed to the reverse osmosis water purification system (2) from a water tank water outlet (13);
after the reverse osmosis water purification system (2) purifies raw water, purified water is conveyed to a PEM low-voltage electrolysis module (4), and discharged concentrated water is conveyed to the removable raw water tank (1) through the water return port (12);
the PEM low-voltage electrolysis module (4) respectively performs ozone electrolysis treatment and hydrogen electrolysis treatment on purified water and then outputs ozone water and hydrogen water in two paths, wherein the ozone water cleans a dental handpiece water path, then flows out of a water outlet of the dental handpiece water path to a disinfection water tank (7), and the hydrogen water is conveyed to the removable raw water tank (1) through the water return port (12);
after water in the disinfection water tank (7) flows into the ozone water digestion water tank (8) for digestion treatment, the ozone water digestion water tank (8) conveys digested ozone water to the removable raw water tank (1) through the water return port (12).
9. A sterilization method according to claim 8, further comprising:
tail gas generated by ozone in the disinfection water tank (7) is discharged after being heated and catalyzed.
CN201910808790.9A 2019-08-29 2019-08-29 High-concentration ozone water sterilizer for dental handpiece sterilization and sterilization method Pending CN110665032A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114305764A (en) * 2020-09-30 2022-04-12 元大牙科仪器股份有限公司 Dental gargle water supply system with sterilization and disinfection functions

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114305764A (en) * 2020-09-30 2022-04-12 元大牙科仪器股份有限公司 Dental gargle water supply system with sterilization and disinfection functions

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