CN102847454B - Preparation apparatus for medical debridement ozonated water - Google Patents

Abstract

Medical debridement ozone water preparation device, the front end of the outlet pipe of the ozone generator (4) is connected to the water suction port (8) of the water outlet pipe (3) under the liquid surface of the water storage tank (7), and the ozone outlet gas is kept leading into the water suction port ( 8), the water outlet pipe (3) is connected with the floating ball (6), and the water suction port (8) rises and falls with the floating ball (6), keeping the water suction port (8) ≤ 40cm below the liquid surface. The initial fusion point of ozone gas and water is stably maintained at a fixed relative height below the liquid level in the water storage tank by using a floating ball device. The prepared ozone water has a high and stable ozone content, and the effluent also contains a large amount of ozone wrapped in water. Bubbles, the sprayed ozone water is more suitable for wound sterilization, and prolongs the action time of ozone on the wound, energy saving and safety, high efficiency, low cost, more suitable for medical use, up to 3mg/L-20mg/L, and the ozone fusion rate reaches 80-90%, reducing the volatilization of ozone, not only avoiding waste, but also reducing pollution.

Description

Medical debridement ozone water preparation device

technical field

The present invention relates to international patent classification C02F1/78 ozone water treatment or A61L2/18 liquid substance material or general method or device for disinfection or B01F mixing technology or device, especially medical debridement ozone water preparation device.

Background technique

In the prior art, ozone OZONE, the molecular formula is O ₃ , is an allotrope of oxygen, its molecular structure is variable at normal temperature and pressure, and it will quickly decompose into oxygen (O ₂ ) and a single oxygen atom (O) , Oxygen atoms have strong activity, are easy to react with unsaturated compounds, and have a strong oxidation effect on bacteria, viruses and other microorganisms. The rest of ozone after application is oxygen, so it is an oxidant with high efficiency and no secondary pollution. Because ozone is very active, it is not easy to store and transport, and it can only be produced and used immediately, so the ozone generator has become a representative equipment of ozone technology. The production of industrial ozone mainly uses oxygen-containing gas as a raw material. Under the action of a strong electric field, the oxygen molecules are opened and recombined to generate ozone. The molecular formula of ozone is O ₃ , the molecular weight is 48, the smell is grassy, the color is light blue, the solubility at 0°C is 640, the stability is easy to decompose, the density at 1 atmosphere is 2.144g/L at 0°C L, the threshold value is 0.02ppm, the allowable safe concentration in the atmosphere is 0.1ppm (=0.2mg/m ³ air), and the oxidation-reduction potential at 25°C is +2.07v; ozone gas has a strong oxidation ability, and the oxidation-reduction potential in water is 2.07 V is second only to fluorine potential 2.78V, and its oxidation capacity is higher than that of chlorine 1.36V and chlorine dioxide 1.5V. Because of the strong oxidizing properties of ozone, it has a strong effect on bacteria, molds, and viruses. This effect is usually a comprehensive effect of physics, chemistry, and biology. People use this characteristic of ozone to sterilize, disinfect, deodorize, decolorize, and decompose organic matter. Because of the active chemical properties of oxygen, it will be reduced to oxygen in about 30 minutes at room temperature. Ozone cannot be stored and can only be generated on site for immediate use.

Ozone is a broad-spectrum, high-efficiency fungicide. At a certain concentration, ozone can quickly kill bacteria in water and air, and the sterilization speed is more than twice that of chlorine. More importantly, ozone is reduced to oxygen after sterilization, so there is no residue and secondary pollution, which some chemical agents cannot do. When ozone is used for air disinfection, due to its good dispersibility, it is not like the "shadow area" that cannot be irradiated by ultraviolet disinfection, so the disinfection effect is better. Ozone is easily dissolved in water to generate ozone water (the solubility is thirteen times that of oxygen). In the process of dissolving ozone in water, in addition to killing bacteria in water, it can also decompose harmful pollutants such as organic matter in water, and has a decolorization effect on water.

In addition to disinfection and sterilization, ozone has a strong deodorizing ability. For example, the smell of smoke, fishy smell, and odor in the air can be removed by using ozone, and it can also kill bacteria in the air at the same time. At present, in many countries and regions, the application of ozone is very popular, such as in drinking water disinfection, swimming pool water disinfection, aquaculture water disinfection, medical water disinfection, sewage treatment, food factory and pharmaceutical factory air disinfection, disease treatment, paper bleaching and other industries And fields; at least small civilian ozone electrical products, a wide variety, has become a daily necessities.

Ozone water is widely used in sterilization and disinfection: food factories and pharmaceutical factories need to carry out over-flow immersion sterilization on the surface of raw materials and other objects to form a sterile surface of raw materials, and the packaging container can be sterilized by contacting high-concentration ozone gas. For example, fruits, etc. can be sterile after being washed and can be made into concentrated juice. In the processing of aquatic products—before freezing and packaging, spraying sterilization with high-concentration ozone water or over-flow immersion sterilization has achieved perfect control of the hygiene indicators of aquatic products, avoiding the problem of excessive residual chlorine caused by the use of chlorides . In liquid food processing such as beverages, fruit juices, etc., and in the production process of pharmaceutical factories, high-concentration ozone water can be used for soaking and rinsing of pipelines, production equipment and containers, so as to achieve efficient sterilization. Bacteria and viruses on the surface of pipelines, equipment and containers are washed and killed, which is very simple and trouble-free. That is to say, there will be no dead angle, and the discharge and residue of harmful substances caused by the use of other chemical disinfectants are avoided, while ozone has no residue and secondary pollution. It can be widely used in hotels, hotels, and office canteens to sterilize and disinfect tableware, fruits and vegetables, and degrade pesticides; as well as sterilize and disinfect children's toys and object surfaces; and water treatment; it can also be widely used in public canteens, fruit and vegetable processing plants , food processing plants, etc., to remove harmful substances such as pesticides, fertilizers, and food additives. It can be widely used in anti-algae and sterilization of industrial water, sterilization and disease prevention of aquaculture water, deodorization, decolorization, sterilization and other processes in the process of sewage treatment. Food preservation: It can be widely used in the process of storage, preservation and disinfection of raw materials and finished products in the production and processing of refrigeration plants, food processing plants, and livestock slaughter plants. Purification and cleaning: * Can be widely used in ozone laundry is an ideal machine for washing clothes in hotels, hotels, saunas, hospitals, pharmaceuticals, food and other industries. It can be widely used in the purification and cleaning of public places, toilets and production sites.

Ozone water, because of its unique therapeutic effect, is very popular in the international medical field, and is mainly used for disinfection and sterilization. Ozone water high-pressure flushing has been proven by many years of clinical research to clean, sterilize and prevent infections from infected and polluted wounds. The medical decontamination and debridement instrument adopts new technology to realize the instant preparation of high-concentration ozone water, which is sprayed out through the nozzle under high-pressure power to realize flushing, disinfection, and oxygen supply synchronously, reducing the workload of medical staff and reducing the pain of debridement for patients , is a commonly used equipment for clinical debridement in various medical departments. The scope of clinical application includes burns: burn wound cleaning, sterilization, dressing change, and promotion of healing.

Ozone water is usually prepared by dissolving ozone gas in water. In the method of ozone dissolution, the gas-liquid mixing device is an indispensable device for producing ozone water. Although ozone water is easily soluble in water and its solubility is dozens of times higher than that of oxygen, the overall Above all, it is a gas that is insoluble in water, and in order to meet the actual needs, efficient dissolution technology must be used to fully contact and mix ozone and water. Contact area, events, ozone concentration, pressure, etc. are all determinants of mixing efficiency. Common mixing methods include bubbling method, deep U tube mixing method, jet method and turbo negative suction method, etc. Among them, bubbling method specifically includes: ozone After compression, the foaming device is used to disperse into tiny bubbles and fully contact with water. The smaller the bubbles, the more the bubbles, the greater the concentration, the better the effect. This method has mature technology, simple maintenance, and small head loss, but the disadvantages are that in order to achieve high mass transfer efficiency, the effective pool depth is large, the equipment is bulky, the reaction time is long, and the equipment cost is high. At the same time, the micropores of the bubbling device are easily blocked, which has an adverse effect on the gas-liquid contact. In practical applications, the method of secondary dissolution is often used to improve the dissolution rate. For example, the combination of Venturi and gas-liquid dissolution separator is used. In the dissolution time of about one second, the mass transfer efficiency of ozone reaches 98%, and the effective dissolution efficiency reaches 72%. %, the concentration of ozone water produced can reach up to 9.35g/m3, which solves the problems of bulky and high operating costs of traditional equipment. For example, another example is that the concentration of circulating ozone water in a high-concentration ozone water machine can be as high as 10ppm or more. Generally, when it is 5ppm, ozone water has super sterilizing ability.

Ozone water production equipment usually consists of oxygen generator, ozone generator, high-voltage power supply, gas-liquid mixing pump plus static mixer, gas-water separator, control system and other parts. The equipment uses the high-concentration oxygen produced by the oxygen generator as the gas source, generates ozone through frequency conversion discharge, and uses the strong oxidizing property of ozone to sterilize and degrade pesticides. The oxygen generator in the equipment uses zeolite molecular sieve imported from the United States as the adsorbent, and uses pressure swing adsorption (PSA) to separate oxygen and nitrogen in the air, and filter out harmful substances in the air, so as to obtain high-purity oxygen and greatly improve Ozone production, purity and efficiency. Then, the high-concentration ozone is fully dissolved in the water through the strong gas-water mixing of the gas-liquid mixing pump and the static mixer to form high-concentration ozone water with the function of sterilizing bacteria and degrading pesticides.

Even so, the preparation patent literature technology of high-concentration ozone water still discloses less.

Chinese Patent Application No. 200910213073.8 A high-concentration ozone water production machine, including a housing, a high-frequency inverter power supply, a discharge chamber, and a gas-water mixing device, the discharge chamber is connected to the gas-water mixing device, wherein, A control device is provided in the housing, and the control device is connected to the high-frequency inverter power supply. Since the control device is provided in the housing, the control device is connected to the high-frequency inverter power supply, and the control device is adjusted by changing the relevant parameters of the power supply. The amount of ozone produced by the discharge chamber.

China Patent Application No. 200410048201.5 A device for rapidly generating high-concentration ozone circulating water, including a housing, water inlet and outlet, control switch, time delay relay, oxygen generator, ozone generator, cooling device, gas-liquid mixing pump, static mixer , Gas-liquid mixing separation tank, tail gas emission control valve, circulating disinfection pool. The oxygen source is used to generate ozone, and three-stage strong gas-liquid mixing is carried out through the gas-liquid mixing pump, static mixer, and gas-liquid mixing separation tank, so that ozone can be efficiently and fully mixed with water.

Chinese Patent Application No. 200920256899.8 A high-concentration ozone water production machine, including a housing, a high-frequency inverter power supply, a discharge chamber, and a gas-water mixing device, the discharge chamber is connected to the gas-water mixing device, wherein, A control device is provided in the housing, and the control device is connected to the high-frequency inverter power supply. Since the control device is provided in the housing, the control device is connected to the high-frequency inverter power supply, and the control device is adjusted by changing the relevant parameters of the power supply. The amount of ozone generated in the discharge chamber can adjust the ozone content in the ozone water, so that the ozone output and concentration of the ozone water generator can be adjusted, which solves the problem of arbitrary adjustment of the ozone amount on the customer's site, and is more convenient to use.

Chinese patent application number 01238244.2 is an ozone water machine. Including ozone generator, water injector, gas-water separation tower, tail gas catalytic column and oxygen generator, etc., and an air blowing mixing tower mechanism is added.

Chinese Patent Application No. 201010157036.2 A method for preparing high-concentration ozone water, and a device for preparing high-concentration ozone water used in conjunction with the process, are composed of an ozone generator, a water pump, a water tank, an air pump and connecting pipelines. The gas outlet and air inlet of the ozone generator are respectively connected to the ozone output pipe and the gas injection pipe, and a water suction head is installed in the open cavity water tank. The lower end of the water suction head is connected to the water tank, and the upper end is connected to the water suction pipe. It communicates with the water suction port of the water pump, connects with the hose at the water outlet of the water pump, and installs a spray gun at the end of the hose.

Chinese Patent Application No. 200410041350.9 is a high-concentration ozone water production machine. The machine is equipped with a PSA oxygen generator in the middle of the shell, a gas-water mixing device at the bottom, and a gas-water separation tank above the gas-water mixing device. There is an exhaust gas purification device on the top of the water separation tank, and an enamel tube discharge chamber and a high-frequency inverter power supply are installed on the top of the shell. There are pipelines between the PSA oxygen generator and the enamel tube discharge chamber, and between the enamel tube discharge chamber and the gas-water mixing device.

In the related technologies of ozone water preparation, the content in the fields of application and medical debridement is even rarer.

Chinese Patent Application No. 201020238998.6 A concentration-adjustable medical ozone water generator, including at least one ozone generator, the ozone generator is connected to the gas-water mixer through the ozone output pipe, the gas-water mixer and the gas-water separator, ozone The reducer is connected through pipelines, the lower part of the gas-water separator has an ozone water output pipe, the upper part of the ozone reducer has an exhaust pipe, and the upper part of the gas-water mixer is connected with the medical water purification pool through a water inlet regulator.

Chinese patent application number 200810186202.4 is a medical kit for dental ozone water, which includes a warm water tank connected to a water inlet pipe, a cold water tank with a connecting pipe connected to the warm water tank, and a water tank respectively connected to the warm water tank and the cold water tank. Washbasin, a teeth cleaning machine connected to the warm water tank, a tooth cleaning machine connected to the cold water tank, and a circulating water supply system, the circulating water supply system includes a pump, a forced mixer, an oxygen generator and an ozone generator, the pump is connected to the cold water tank, the forced mixer is connected to the pump, and a water supply pipe is connected to the warm water tank and the cold water tank, and the oxygen generator is connected to the ozone generator It is then connected to the circulating water outlet pipe.

Chinese Patent Application No. 92216235.2 is a sterilization device, which works on the principle that ozone water can efficiently oxidize and sterilize. High-frequency and high-voltage pulses drive solids to discharge along the surface to make the air generate ozone. Two-stage high-efficiency differential pressure mixers are connected in series. Inhaled, mixed with water to generate high-concentration ozone water, and the heat generated by high-frequency surface discharge is taken away by the ozone water flowing through the interior.

Chinese patent application number 200710072921.9 is an ozone hydrotherapy method with medical and health care functions, which combines the high-concentration ozone technology generated by electrolyzed pure water with a series of beauty and body equipment.

Chinese patent application number 02226863.4 ozone water generating device, including an ozone generator and a gas-liquid mixer, the gas-liquid mixer is composed of a three-way pipe, a spiral guide and a filter installed in the three-way pipe, and the outlet of the ozone generator is connected to the A one-way valve is connected between the air inlets of the three-way pipe, and an air pump is installed at the outlet of the ozone generator. The ozone is pressed into the gas-liquid mixer through the one-way valve and fully mixed with water to generate ozone water.

The improved technologies above and the like use the natural fusion of ozone and water to input the ozone generated by the ozone generator into the water tank through the pipeline for natural gas-liquid fusion. Since the relative distance between the initial fusion point of ozone gas and water and the liquid level is always changing , the fusion rate of this natural fusion method is unstable, and generally only reaches about 30% on average, while the remaining average 70% of ozone gas will volatilize into the air and cannot be used. The existing improvement measures should be as far as possible Increase the contact time between ozone and water, and it needs to be preheated and fused for 10-15 minutes before it can be used normally. Even in this case, the maximum concentration of ozone water can only reach 0.2ppm/L or 0.45mg /L, the fusion rate has not been greatly improved. The existing medical ozone water concentration has not been able to meet the target of being stable at 1-2mg/L. It is impossible to treat the wound quickly in medical use, which delays the treatment time. Medical requirements still exist that cannot guarantee stable and continuous supply of ozone water device technology with a concentration suitable for medical use.

Contents of the invention

The purpose of the present invention is to provide a medical debridement ozone water preparation device, which can keep ozone water stably mixed with sufficient ozone bubbles, so as to realize the only required performance of medical ozone water.

The purpose of the present invention will be achieved by the following technical measures: the water inlet pipe is connected to the water storage tank, the lower end of the water outlet pipe has a water suction port and is inserted into the water storage tank, and the front end of the air outlet pipe of the ozone generator is connected to the water suction port under the liquid surface of the water storage tank and the water outlet pipe Connect, and keep the ozone outlet into the water suction port, the water outlet pipe is connected to the float, the water suction port rises and falls with the float ball, and keeps the water suction port ≤ 40cm below the liquid surface.

The advantages and effects of the present invention are: the initial fusion point of ozone gas and water is stably maintained at a fixed relative height below the liquid level in the water storage tank by using a floating ball device, and the ozone content of the prepared ozone water is relatively high and stable, and the effluent water is also stable. Contains a large number of ozone bubbles wrapped in water, the sprayed ozone water is more suitable for wound sterilization, and prolongs the action time of ozone on the wound, energy saving, safe, high efficiency, low cost, more suitable for medical use, up to 3mg/L-20mg /L, the ozone fusion rate reaches 80-90%, which reduces the volatilization of ozone, avoids waste and reduces pollution.

Description of drawings

Fig. 1 is a structural representation of the present invention

Figure 2 is a schematic diagram of the structure of the three-way valve in Figure 1

Reference signs include: water inlet pipe 1, one-way valve 2, water outlet pipe 3, ozone generator 4, water pump 5, floating ball 6, water storage tank 7, water suction port 8, three-way valve 9, slide rail 10.

Detailed ways

The present invention will be further described below in conjunction with drawings and embodiments.

As shown in Figure 1, the water inlet pipe 1 is connected to the water storage tank 7, and the lower end of the water outlet pipe 3 has a water suction port 8 and is inserted into the water storage tank 7. The water suction port 8 is connected, and the ozone outlet gas is kept leading into the water suction port 8, the water outlet pipe 3 is connected with the floating ball 6, the water suction port 8 rises and falls with the floating ball 6, and the water suction port 8 is kept below the liquid surface ≤ 40cm.

As shown in Figure 2, in the foregoing, the front end of the outlet pipe of the ozone generator 4 communicates with the water suction port 8 of the water outlet pipe 3 through the three-way valve 9, the lower end of the three-way valve 9 is connected to the water suction port 8, the upper end is connected to the water outlet pipe 3, and the middle part is connected to The outlet pipe front end of ozone generator 4. When negative pressure is formed in the water outlet pipe 3 to draw upwards, the water in the water storage tank 7 is drawn up through the water suction port 8, and at the same time, the ozone gas enters the three-way valve 9 through the front end of the outlet pipe of the ozone generator 4 and mixes with water to fill the air. The ozone water with abundant ozone bubbles is exported upwards from the water outlet pipe 3 .

The water outlet of the water inlet pipe 1 is located above the liquid level in the water storage tank 7 . Purified water is replenished in the water storage tank 7 through the water inlet pipe 1.

Check valve 2 is installed on the gas outlet of ozone generator 4. The outlet pipe of the ozone generator 4 is made of stainless steel, and the size is (300±50)mm×30mm. Because the three-way valve 9 is the fusion point of ozone gas and water, in order to prevent the liquid from flowing backward, a one-way valve 2 is installed at the rear 5-10cm of the gas outlet output end of the ozone generator 4. Thereby prolonging the service life of the ozone generator. It should be noted that if the check valve 2 is not installed, after the equipment is debugged for the first time, the ozone generator 4 will stop producing ozone, and the liquid will flow back into the ozone generator 4, and the equipment will start up the second time. If it can't work normally, it will damage the ozone generator if it does for a long time.

A water pump 5 is installed on the outlet pipe 3 .

Slide rail 10 is installed in the water storage tank 7, and float 6 is installed on the slide rail 10. The floating ball 6 can slide along the slide rail 10 under the action of buoyancy to keep its center of gravity within a certain range as the liquid level rises and falls synchronously.

In the present invention, the water pump 5 is a gear pump with a rotating speed of 800-1600 rpm, and the size of the ozone tube is 300×30mm. In particular, the water pump 5 is a miniature magnetic gear pump with a rated pressure of 7 bar and a flow rate of 20-1000ml/min. 50-95w, voltage DC24V, water output 50-100ml/min.

In the present invention, in order to ensure that the concentration of ozone water in the outlet pipe 3 is ≥ 1 mg/L, the water output of the outlet pipe 3 is stable at 100 ± 20 mg/min. Ozone water contains a large number of ozone bubbles, and the outlet water contains a large number of water-wrapped ozone bubbles in addition to the water-soluble ozone. Based on this, the ozone water ejected from the water outlet pipe 3 is more suitable for wound sterilization, prolongs the action time of ozone on the wound, and is more suitable for medical use.

The ozone content of the ozone water prepared by the device of the present invention is relatively high and stable. There is no similar technology disclosed at present, and it is more suitable for medical use. It can reach 3mg/L-20mg/L, and the ozone fusion rate reaches 80-90%. The volatilization of ozone is reduced, which not only avoids waste, but also reduces pollution.

The invention is mainly applicable to debridement of surgical wounds in hospitals.

In the present invention, due to the atmospheric pressure, the deeper the water in the water storage tank 7, the greater the pressure, and the relative height between the water suction port 8 and the liquid surface is stabilized by the floating ball 6, so that the water suction port 8 is always kept lower than the liquid surface ≤ 40mm; When the surface height is 40mm, that is, when the water suction port 8 is deep under the liquid surface, due to the interaction between atmospheric pressure and water pressure, the water intake at the top of the water suction port 8 will increase, while the air intake will decrease, so that the ozone water The concentration cannot reach ≥ 1 mg/L, which is one of the important reasons for the deficiencies in the prior art.

Claims (7)

1. The medical debridement ozone water preparation device is characterized in that the water inlet pipe (1) is connected to the water storage tank (7), the water outlet pipe (3) has a water suction port (8) at the lower end and is inserted into the water storage tank (7), and the ozone generator The front end of the air outlet pipe of (4) is connected to the water storage tank (7) under the liquid surface and connected to the water suction port (8) of the water outlet pipe (3), and the ozone outlet gas is kept to be introduced into the water suction port (8), and the water outlet pipe (3) is connected to the water suction port (8). The ball (6) is connected, and the water suction port (8) rises and falls with the float (6), keeping the water suction port (8) ≤ 40cm below the liquid surface. 2. The medical debridement ozone water preparation device as claimed in claim 1, characterized in that, a one-way valve (2) is installed on the gas outlet of the ozone generator (4). 3. The medical debridement ozone water preparation device as claimed in claim 1, characterized in that, a check valve (2) is installed at the rear 5-10cm of the gas outlet output end of the ozone generator (4). 4. The medical debridement ozone water preparation device according to claim 1, characterized in that a water pump (5) is installed on the outlet pipe (3). 5. The medical debridement ozone water preparation device as claimed in claim 4, characterized in that the water pump (5) is a miniature magnetic gear pump with a rated pressure of 7bar, a flow rate of 20-1000ml/min, a power of 50-95w, and a voltage of DC24V. The water output is 50-100ml/min. 6. The medical debridement ozone water preparation device as claimed in claim 1, characterized in that, the outlet pipe front end of the ozone generator (4) passes through the water suction port (8) of the three-way valve (9) and the outlet pipe (3) Connected, the lower end of the three-way valve (9) is connected to the water suction port (8), the upper end is connected to the water outlet pipe (3), and the middle part is connected to the front end of the outlet pipe of the ozone generator (4). 7. The medical debridement ozone water preparation device according to claim 1, characterized in that, a slide rail (10) is installed in the water storage tank (7), and the floating ball (6) is installed on the slide rail (10).