CN108714229B

CN108714229B - Ozone disinfection and sterilization device

Info

Publication number: CN108714229B
Application number: CN201810532939.0A
Authority: CN
Inventors: 樊国荣
Original assignee: Zhongyang Technology Guangzhou Co ltd
Current assignee: Zhongyang Technology Guangzhou Co ltd
Priority date: 2018-05-30
Filing date: 2018-05-30
Publication date: 2020-06-30
Anticipated expiration: 2038-05-30
Also published as: CN108714229A

Abstract

The invention relates to the technical field of ozone disinfection, in particular to an ozone disinfection and sterilization device and a using method thereof. The disinfection and sterilization device comprises an ozone generating device, a gas-water mixer, a disinfection and sterilization chamber, an exhaust fan, an exhaust pipe, an ozone output pipe, an ozone input pipe, an ozone-water input pipe, a liquid discharge pipe, an inflation and deflation device, an air passage, a plurality of electromagnetic valves and a control system. The device can adapt to the disinfection of different object types, can make full use of ozone, and can not cause the pollution to the environment, easy operation, the extensive popularization of being convenient for.

Description

Ozone disinfection and sterilization device

Technical Field

The invention relates to the technical field of ozone disinfection, in particular to an ozone disinfection and sterilization device and a using method thereof.

Background

Ozone (O)₃) As a strong oxidant, the oxidant has strong sterilization and disinfection effects due to strong oxidation capability, generates oxygen after sterilization and disinfection, does not generate secondary pollution, and is more and more emphasized in the fields of environmental protection and the like. At present, ozone is widely applied to various aspects such as drinking water treatment, medical water treatment, municipal sewage treatment, food disinfection and sterilization, air purification and the like. However, since ozone is easily self-decomposed and not easily stored, it is generally used as it is when ozone is used. At present, methods for artificially generating ozone mainly include ultraviolet irradiation methods, radiochemical methods, dielectric barrier discharge methods, low-pressure electrolysis methods, and the like. Among these production methods, the radiochemical method requires the use of radioactive sources, and is costly and has poor safety. The ultraviolet irradiation method is a method in which dry oxygen is irradiated with ultraviolet rays to dissociate a part of oxygen molecules into oxygen atoms, and then the oxygen atoms react with the oxygen molecules to form ozone. However, the ultraviolet irradiation method has high energy consumption and generates ozone with low concentration, which is not beneficial to mass production of ozone, and even more, ozone needs to reach certain concentration to have good disinfection and sterilization effects when in use. The dielectric barrier discharge method is to generate corona by an alternating high-voltage electric field, free high-energy electrons are in a corona region, oxygen molecules are dissociated into oxygen atoms under the bombardment of high-speed electron flow when oxygen gas passes through the corona discharge region, and then the oxygen atoms and the oxygen molecules are collided to form ozone molecules. However, when ozone is produced by the dielectric barrier discharge method, if air is selected as the raw material, nitrogen oxides harmful to human bodies are generated, the environment is polluted, and the concentration of the produced ozone is low. If selected as pure oxygenAnd gas can greatly improve the production cost and is not beneficial to popularization and use. The low-voltage electrolysis method for preparing ozone utilizes a direct-current power supply to electrolyze oxygen-containing electrolyte. Wherein, the low-pressure electrolyzed water can obtain higher ozone concentration and can not generate harmful substances such as nitrogen oxides and the like. Meanwhile, the voltage of the adopted direct current power supply can be as low as 3-5 volts, and the method is safe, practical and convenient to popularize.

At present, ozone prepared by a low-pressure electrolysis method is widely applied. When ozone is applied to the field of disinfection and sterilization, ozone gas is generally adopted for direct disinfection and sterilization or ozone is dissolved in water and then disinfected by ozone water. However, in practical applications, depending on the type of the object to be sterilized, it is usually necessary to select a suitable sterilization method, such as ozone gas or ozone water. For example, some objects cannot or cannot be easily exposed to water and therefore cannot be disinfected with ozone water; and some objects may be sterilized with ozone water. At present, no ozone disinfection and sterilization device which can adopt corresponding disinfection modes for different types of objects simultaneously is seen in the market. In addition, ozone is very easily decomposed and unstable, and the higher the temperature is, the faster the decomposition speed is. However, the ozone in practical use is usually prepared and used at the present, so the prepared ozone needs to be fully utilized to prevent the excessive ozone from self-decomposing and causing waste. In addition, ozone near the surface of the earth has an erosive and damaging effect on the human body, especially on eyes, respiratory tract and the like, and surface ozone is harmful to crops or forests.

Therefore, it is urgent to design an ozone disinfection and sterilization device which can be adapted to different object types, can fully utilize ozone, and does not pollute the environment.

Disclosure of Invention

In view of the above problems, an object of the present invention is to provide an ozone sterilization device that can be adapted to sterilization of different types of objects, can make full use of ozone, and does not cause environmental pollution, and a method for sterilizing different types of objects using the ozone sterilization device.

In order to achieve the purpose, the invention provides the following technical scheme:

an ozone disinfection and sterilization device comprises an ozone generating device, a gas-water mixer, a disinfection and sterilization chamber, an exhaust fan, an exhaust pipe, an ozone output pipe, an ozone input pipe, an ozone-water input pipe, a liquid discharge pipe, an inflation and deflation device, an air passage, a plurality of electromagnetic valves and a control system; the walls around the disinfection and sterilization chamber comprise an outer layer plate, a middle spacing piece and an inner layer plate which are sequentially arranged from outside to inside, a first cavity is formed between the outer layer plate and the middle spacing piece, and a second cavity is formed between the middle spacing piece and the inner layer plate; the middle spacing piece is made of elastic rubber material; one end of the air passage is connected with the air charging and discharging device, the other end of the air passage is communicated with the second cavity at the top of the disinfection chamber, and a sixth electromagnetic valve is arranged on the air passage; a rotating cage is arranged in the middle of the disinfection and sterilization chamber, and comprises round end plates at two sides and a plurality of connecting rods which are arranged between the round end plates at two sides and are arranged at intervals; the circle center of the round end plate on one side is connected with one end of the transmission shaft, the other end of the transmission shaft extends out of the side wall of the disinfection and sterilization chamber and is connected with the belt pulley, and the output shaft of the motor drives the belt pulley to rotate through a belt, so that the transmission shaft drives the rotating cage to rotate; one end of the ozone output pipe is communicated with an ozone outlet of the ozone generating device, and the other end of the ozone output pipe is communicated with an air inlet of the air-water mixer; a first electromagnetic valve is arranged on an ozone output pipe between an air inlet of the air-water mixer and the ozone generating device; an opening is arranged on an ozone output pipe between the first electromagnetic valve and the ozone generating device and is connected with an ozone input pipe, and a second electromagnetic valve is arranged on the ozone input pipe; the output port of the gas-water mixer is communicated with an ozone water input pipe, and a third electromagnetic valve is arranged on the ozone water input pipe; the top wall of the disinfection chamber is provided with three openings which are respectively used for inserting an ozone input pipe, an ozone water input pipe and a communicated exhaust pipe; one end of the ozone water input pipe, which is positioned in the disinfection and sterilization chamber, is connected with an atomizing nozzle; a fourth electromagnetic valve and an exhaust fan are sequentially arranged at one end of the exhaust pipe close to the disinfection and sterilization chamber; a liquid discharge pipe is arranged at the lower end part of the side wall of the disinfection and sterilization chamber, and a fifth electromagnetic valve is arranged on the liquid discharge pipe; a sieve plate is arranged at the middle lower part of the sterilizing chamber; an ozone concentration detector and a temperature sensor are arranged in the disinfection chamber; the inner layer plate of the disinfection chamber is provided with a heating device.

The heating device is an electric heating device, preferably an infrared heating device. The heating device is arranged, so that the temperature of the disinfection and sterilization chamber can be increased after the ozone disinfection and sterilization is finished, and the residual ozone can be rapidly decomposed. The rotary cage is arranged, so that articles in the rotary cage can be sterilized uniformly without dead angles.

Preferably, the circle center of the circular end plate at the other end of the rotating cage is also connected with a transmission shaft, and one end of the transmission shaft, which is far away from the circular end plate, is connected with a bearing arranged on the outer plate of the side wall. Set up like this, stability when can increase the rotating cage rotation, increase of service life.

Preferably, air or heat insulating material is filled in the first cavity formed between the outer plate and the middle spacer to reduce the influence of the external temperature on the temperature of the sterilization chamber. A second cavity is formed between the middle partition sheet and the inner plate, the second cavity is filled with water in advance, and the second cavity positioned at the top of the sterilizing chamber is communicated with the air charging and discharging device. Whether the second cavity is inflated or not needs to be selected according to actual needs. The middle spacing piece is made of elastic rubber materials, the elastic rubber materials can elastically deform when air is filled into the second cavity, so that the volume of the second cavity is increased, water filled in advance sinks to the bottom of the second cavity under the action of gravity, and the parts above the bottom of the second cavity are filled with the air.

When the articles are disinfected and sterilized by ozone gas or ozone water, the second cavity is filled with cold water to reduce the temperature of the disinfection and sterilization chamber and avoid the influence of the external temperature on the disinfection and sterilization chamber. Especially in summer or when the sterilizing chamber is in a higher temperature environment, the self-decomposition of ozone caused by the temperature rise can be greatly reduced, and the utilization rate of ozone is improved. After ozone gas or ozone water disinfection and sterilization are finished, the sixth electromagnetic valve and the air charging and discharging device are opened, air is filled into the second cavity, the middle partition sheet is elastically deformed, the volume of the second cavity is increased, water filled in advance sinks to the bottom of the second cavity under the action of gravity, the part above the bottom of the second cavity is filled with air, the heating device is opened at the moment, the temperature in the disinfection and sterilization chamber is increased, the decomposition of residual ozone is accelerated, and when the ozone concentration is reduced to be below a specified value, the fourth electromagnetic valve, the fifth electromagnetic valve and the exhaust fan are opened to exhaust the air. And at the moment, air is filled in the second cavity, and the heat generated by the heating device is not easy to be transmitted to the outside of the disinfection and sterilization chamber due to the heat insulation effect of the air, so that the energy consumption is reduced. Preferably, the inner plate located at the bottom of the sterilizing chamber is made of a rigid material having low thermal conductivity. This can further reduce the proportion of heat generated by the heating means transferred to the water in the second cavity, improving the efficiency of energy use.

Preferably, the outer sides of the ozone output pipe, the ozone input pipe and the ozone water input pipe are provided with heat insulation layers to reduce self-decomposition of ozone caused by interference of external temperature.

Preferably, the rotating cage is provided with a loose-leaf door in the circumferential direction, so that articles to be disinfected and sterilized can be conveniently put in the rotating cage.

Preferably, the disinfection and sterilization chamber is a cuboid, and a door is arranged on one side of the cuboid, so that articles can be conveniently placed into the rotating cage.

The sieve plate is arranged at the middle lower part of the side wall of the disinfection and sterilization chamber, and aims to prevent articles from falling to the bottom of the disinfection and sterilization chamber in the disinfection and sterilization process. For example, when ozone water is used for disinfection and sterilization, ozone water is deposited at the bottom of the disinfection and sterilization chamber, and one disinfection and sterilization method in the invention is to atomize the ozone water and spray the atomized ozone water into the disinfection and sterilization chamber to disinfect and sterilize articles. When the articles fall off, the articles can fall on the sieve plate and can not fall into ozone water at the bottom of the disinfection and sterilization chamber, so that the articles are prevented from being excessively soaked; in addition, the atomized ozone water can disinfect and sterilize the lower surfaces of falling objects from the holes of the sieve plate, and the phenomenon that the lower surfaces of the falling objects cannot contact the atomized ozone water to cause incomplete disinfection and sterilization is avoided. When ozone gas is used for disinfection, articles can be placed in the rotating cage, even if the articles drop, the ozone gas can also disinfect and sterilize the lower surfaces of the dropped articles from holes of the sieve plate, and the phenomenon that the lower surfaces of the dropped articles cannot contact the ozone to cause incomplete disinfection and sterilization is avoided. In addition, the sieve plate can also make the ozone water leak from the holes and finally be discharged from the liquid discharge pipe.

The method for sterilizing the articles by adopting the ozone sterilizing device comprises the following steps:

step (1), determining a disinfection and sterilization mode: putting the objects to be disinfected and sterilized into a rotating cage; determining whether to adopt ozone water for disinfection or ozone gas for disinfection according to the type of the article to be disinfected and sterilized;

step (2), disinfection preparation: injecting air into the first cavity and injecting cold water into the second cavity; the control system opens or closes part of the electromagnetic valves according to the selected disinfection and sterilization mode; when ozone gas is adopted for disinfection and sterilization, the control system closes the first electromagnetic valve, the third electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve, and opens the second electromagnetic valve; when ozone water is used for disinfection and sterilization, the control system closes the second electromagnetic valve, the fourth electromagnetic valve, the fifth electromagnetic valve and the sixth electromagnetic valve and opens the first electromagnetic valve and the third electromagnetic valve;

and (3) disinfection and sterilization: the motor drives the rotating cage to rotate; when ozone water is used for disinfection and sterilization, the ozone generating device and the air-water mixer are opened, ozone prepared by the ozone generating device is led into the air-water mixer through the ozone output pipe, ozone water generated under the action of the air-water mixer is led into the disinfection and sterilization chamber through the ozone water input pipe, and simultaneously the ozone water is atomized under the action of the atomizing nozzle; when ozone gas is used for disinfection and sterilization, the ozone generating device is opened, and ozone prepared by the ozone generating device is introduced into the disinfection and sterilization chamber through the ozone output pipe and the ozone input pipe;

step (4) ozone removal: after the disinfection and sterilization are finished, residual ozone is removed;

when ozone gas is adopted for disinfection and sterilization, the motor, the ozone generating device and the second electromagnetic valve are closed, the sixth electromagnetic valve and the air charging and discharging device are opened, air is introduced into the second cavity, the middle spacer is stretched and deformed by air pressure along with the introduction of the air, so that the volume of the second cavity is increased, when cold water in the second cavity is positioned at the bottom of the second cavity due to the action of gravity, the air charging and discharging device and the sixth electromagnetic valve are closed, and at the moment, the part above the bottom of the second cavity is filled with the air; opening the heating device, raising the temperature in the disinfection and sterilization chamber to a preset value to decompose ozone, and opening the fourth electromagnetic valve, the fifth electromagnetic valve and the exhaust fan to exhaust gas when the ozone concentration detector detects that the concentration of ozone reaches a specified value or below;

when ozone water is adopted for disinfection and sterilization, the first electromagnetic valve, the third electromagnetic valve, the gas-water mixer and the ozone generating device are closed, the motor is kept to rotate, the sixth electromagnetic valve and the air charging and discharging device are opened, air is introduced into the second cavity, the middle partition sheet is stretched and deformed by air pressure along with the introduction of the air, the volume of the second cavity is increased, when cold water in the second cavity is positioned at the bottom of the second cavity due to the action of gravity, the air charging and discharging device and the sixth electromagnetic valve are closed, and at the moment, the part above the bottom of the second cavity is filled with the air; opening the heating device, raising the temperature in the disinfection and sterilization chamber to a preset value to decompose ozone, when the ozone concentration detector detects that the concentration of the ozone reaches a specified value or below, closing the motor, opening the fourth electromagnetic valve and the fifth electromagnetic valve, discharging liquid through the liquid discharge pipe, then opening the exhaust fan, and discharging gas through the exhaust pipe;

and (5) taking out the sterilized articles.

In the method, when the sterilization preparation in the step (2) is carried out, air is injected into the first cavity in order to isolate the influence of the external temperature on the sterilization room as much as possible; cold water is injected into the second cavity, so that the temperature of the disinfection and sterilization chamber is reduced, and the influence of the outside air temperature on the disinfection and sterilization chamber can be further prevented, thereby being beneficial to improving the utilization rate of ozone and reducing the self-decomposition of the ozone.

In the method, when the ozone is eliminated in the step (4), air is introduced into the second cavity to enable the middle spacer to be stretched and deformed by air pressure, the volume of the second cavity is increased, cold water in the second cavity is located at the bottom of the second cavity due to the action of gravity, and the part above the bottom of the second cavity is filled with the air, so that when the heating device is opened, the heat generated by the heating device is prevented or reduced from being absorbed by the cold water in the second cavity, the energy utilization rate is reduced, and the heating of the interior of the disinfection and sterilization room is not facilitated; the selection is to continue to keep the motor rotating when the ozone water is adopted for disinfection and sterilization, so that the heat generated by the heating device can be utilized to uniformly heat the sterilized articles, and the water on the sterilized articles can be uniformly dried.

In the method, when the ozone is eliminated in the step (4), the fourth electromagnetic valve and the fifth electromagnetic valve are opened during air exhaust or water drainage, so that air can enter from the liquid exhaust pipe during air exhaust, gas in the disinfection and sterilization chamber can be exhausted from the exhaust pipe, and the air pressure balance is kept; similarly, when liquid is discharged, air can enter from the exhaust pipe, and the liquid is favorably discharged.

Of course, the ozone disinfection and sterilization device of the invention can also adopt a mode that the ozone water directly soaks the articles for disinfection and sterilization, and after disinfection and sterilization, the heating device is used for drying.

In addition, the articles to be sterilized can also be directly placed on the sieve plate for sterilization.

The air charging and discharging device adopted in the invention can suck air, so that the air in the second cavity can be sucked away, the middle spacer sheet recovers the original size, the volume of the second cavity is reduced, and the water in the second cavity can be distributed in each place of the second cavity again to prepare for next disinfection and sterilization.

The invention has the beneficial effects that:

the invention provides an ozone disinfection and sterilization device, which can use different disinfection and sterilization methods for different types of articles. For example, ozone gas can be selected for disinfecting the plush toys, so that the plush toys are prevented from being excessively soaked by ozone water disinfection, the plush toys are not easy to dry quickly, and children are prevented from crying and screaming. For wettable articles, atomized ozone water is adopted for disinfection and sterilization, so that the use amount of ozone can be greatly reduced. The invention provides an ozone disinfection and sterilization device which can adapt to different object types, can fully utilize ozone and does not pollute the environment. The second cavity is filled with water in advance, and the size of the second cavity can be changed due to the telescopic performance of the middle spacing piece, so that the water in the second cavity can be recycled, and the inconvenience of repeated cyclic water adding and discharging is avoided.

Drawings

FIG. 1 is a schematic structural view of an ozone sterilization and disinfection apparatus according to the present invention.

FIG. 2 is a schematic view of the second cavity of the ozone sterilizer of the present invention being filled with water;

FIG. 3 is a schematic view showing a state in which the second cavity of the ozone sterilizer of the present invention is filled with air so that the pre-filled water is located at the lower portion of the second cavity.

Reference numerals: 1. an ozone generating device; 2. an ozone output pipe; 3. a first solenoid valve; 4. a gas-water mixer; 5. a second solenoid valve; 6. a third electromagnetic valve; 7. an ozone input tube; 8. an ozone water input pipe; 9. an exhaust fan; 10. an exhaust pipe; 11. a fourth solenoid valve; 12. an outer plate; 13. a middle spacer; 14. an inner layer board; 15. a belt pulley; 16. a drive shaft; 17. rotating the cage; 18. a fifth solenoid valve; 19. a liquid discharge pipe; 20. a sieve plate; 21. an air charging and discharging device; 22. a sixth electromagnetic valve; 23. an airway.

Detailed Description

The present invention will be described in detail with reference to the following embodiments and accompanying fig. 1 to 3.

As shown in fig. 1, an ozone disinfection and sterilization device comprises an ozone generating device 1, a gas-water mixer 4, a disinfection and sterilization chamber, an exhaust fan, an exhaust pipe 10, an ozone output pipe 2, an ozone input pipe 7, an ozone water input pipe 8, a liquid discharge pipe 19, an air charging and discharging device 21, an air passage 23, a plurality of electromagnetic valves and a control system; the walls around the disinfection and sterilization chamber comprise an outer plate 12, a middle partition sheet 13 and an inner plate 14 which are arranged from outside to inside in sequence, a first cavity is formed between the outer plate 12 and the middle partition sheet 13, and a second cavity is formed between the middle partition sheet 13 and the inner plate 14; the middle spacer 13 is made of an elastic rubber material; one end of the air passage 23 is connected with the air charging and discharging device 21, the other end of the air passage 23 is communicated with the second cavity at the top of the disinfection and sterilization chamber, and the air passage 23 is provided with a sixth electromagnetic valve 22; a rotating cage 17 is arranged in the middle of the sterilizing chamber, and the rotating cage 17 comprises round end plates at two sides and a plurality of connecting rods which are arranged between the round end plates at two sides and are arranged at intervals; the circle center of the round end plate on one side is connected with one end of a transmission shaft 16, the other end of the transmission shaft 16 extends out of the side wall of the disinfection and sterilization chamber to be connected with a belt pulley 15, and an output shaft of a motor drives the belt pulley 15 to rotate through a belt, so that a rotating cage 17 is driven to rotate through the transmission shaft 16; one end of the ozone output pipe 2 is communicated with an ozone outlet of the ozone generating device 1, and the other end is communicated with an air inlet of the air-water mixer 4; a first electromagnetic valve 3 is arranged on the ozone output pipe 2 between the air inlet of the air-water mixer 4 and the ozone generating device 1; an opening is arranged on the ozone output pipe 2 between the first electromagnetic valve 3 and the ozone generating device 1 and is connected with an ozone input pipe 7, and a second electromagnetic valve 5 is arranged on the ozone input pipe 7; the output port of the gas-water mixer 4 is communicated with an ozone water input pipe 8, and a third electromagnetic valve 6 is arranged on the ozone water input pipe 8; the top wall of the disinfection chamber is provided with three openings which are respectively used for inserting an ozone input pipe 7, an ozone water input pipe 8 and a communicating exhaust pipe 10; one end of the ozone water input pipe 8 positioned in the disinfection and sterilization chamber is connected with an atomizing nozzle; a fourth electromagnetic valve 11 and an exhaust fan 9 are sequentially arranged at one end of the exhaust pipe 10 close to the disinfection and sterilization chamber; a liquid discharge pipe 19 is arranged at the lower end part of the side wall of the disinfection and sterilization chamber, and a fifth electromagnetic valve 18 is arranged on the liquid discharge pipe 19; a sieve plate 20 is arranged at the middle lower part of the sterilizing chamber; an ozone concentration detector and a temperature sensor are arranged in the disinfection chamber; a heating device is arranged on the inner layer plate 14 of the disinfection and sterilization chamber.

The heating device is an electric heating device, preferably an infrared heating device. The heating device is arranged, so that the temperature of the disinfection and sterilization chamber can be increased after the ozone disinfection and sterilization is finished, and the residual ozone can be rapidly decomposed. The rotary cage 17 is arranged, so that articles in the rotary cage 17 can be sterilized uniformly without dead angles.

Preferably, the center of the circular end plate at the other end of the rotating cage 17 is also connected with a transmission shaft, and one end of the transmission shaft, which is far away from the circular end plate, is connected with a bearing arranged on the outer plate 12 of the side wall. By the arrangement, the stability of the rotating cage 17 during rotation can be improved, and the service life is prolonged.

Preferably, air or heat insulating material is filled in the first cavity formed between the outer sheet 12 and the middle spacer 13 to reduce the influence of the external temperature on the temperature of the sterilization chamber. A second cavity is formed between the middle spacer 13 and the inner plate 14, and is filled with water in advance (as shown in fig. 2, fig. 2 shows a state that the second cavity is filled with water), and the second cavity at the top of the sterilizing chamber is communicated with the air charging and discharging device 21. Whether the second cavity is inflated or not needs to be selected according to actual needs. The middle spacer 13 is made of an elastic rubber material, and the elastic rubber material can elastically deform when the second cavity is filled with air, so that the volume of the second cavity is increased, the pre-filled water sinks to the bottom of the second cavity under the action of gravity, and the part above the bottom of the second cavity is filled with air (as shown in fig. 3, fig. 3 shows that the middle spacer stretches and deforms when the air filling and discharging device fills air into the second cavity, the volume of the second cavity is increased, and the pre-filled water is positioned at the bottom of the second cavity).

When the articles are disinfected and sterilized by ozone gas or ozone water, the second cavity is filled with cold water to reduce the temperature of the disinfection and sterilization chamber and avoid the influence of the external temperature on the disinfection and sterilization chamber. Especially in summer or when the sterilizing chamber is in a higher temperature environment, the self-decomposition of ozone caused by the temperature rise can be greatly reduced, and the utilization rate of ozone is improved. After ozone gas or ozone water disinfection and sterilization are finished, the sixth electromagnetic valve 22 and the air charging and discharging device 21 are opened, air is charged into the second cavity, the middle partition sheet 13 is elastically deformed, the volume of the second cavity is enlarged, water filled in advance sinks to the bottom of the second cavity under the action of gravity, the part above the bottom of the second cavity is filled with air, at the moment, the heating device is opened, the temperature in the disinfection and sterilization chamber is increased, the decomposition of residual ozone is accelerated, and when the ozone concentration is reduced to be below a specified value, the fourth electromagnetic valve 11, the fifth electromagnetic valve 18 and the exhaust fan 9 are opened to exhaust the air. And at the moment, air is filled in the second cavity, and the heat generated by the heating device is not easy to be transmitted to the outside of the disinfection and sterilization chamber due to the heat insulation effect of the air, so that the energy consumption is reduced. Preferably, the inner plate 14 located at the bottom of the sterilization chamber is made of a rigid material having low thermal conductivity. This can further reduce the proportion of heat generated by the heating means transferred to the water in the second cavity, improving the efficiency of energy use.

Preferably, the ozone output pipe 2, the ozone input pipe 7 and the ozone water input pipe 8 are provided with heat insulation layers on the outer sides thereof to reduce self-decomposition of ozone caused by interference of external temperature.

Preferably, the rotating cage 17 is provided with a loose-leaf door in the circumferential direction, so that articles to be sterilized can be conveniently put in.

Preferably, the disinfection and sterilization chamber is a cuboid, and a door is arranged on one side of the cuboid, so that articles can be conveniently placed into the rotating cage 17.

The sieve plate 20 is arranged at the middle lower part of the side wall of the disinfection and sterilization chamber, and aims to prevent articles from falling to the bottom of the disinfection and sterilization chamber in the disinfection and sterilization process. For example, when ozone water is used for disinfection and sterilization, ozone water is deposited at the bottom of the disinfection and sterilization chamber, and one disinfection and sterilization method in the invention is to atomize the ozone water and spray the atomized ozone water into the disinfection and sterilization chamber to disinfect and sterilize articles. When the articles fall off, the articles can fall on the sieve plate 20 and can not fall into ozone water at the bottom of the disinfection and sterilization chamber, so that the articles are prevented from being excessively soaked; in addition, the atomized ozone water can disinfect and sterilize the lower surfaces of falling objects from the holes of the sieve plate 20, and the phenomenon that the lower surfaces of the falling objects cannot contact the atomized ozone water to cause incomplete disinfection and sterilization is avoided. When ozone gas is used for disinfection, articles can be placed in the rotating cage 17, even if the articles drop, the ozone gas can disinfect and sterilize the lower surfaces of the dropped articles from holes of the sieve plate 20, and the phenomenon that the disinfection and sterilization are incomplete due to the fact that the lower surfaces of the dropped articles cannot contact with the ozone after the articles drop is avoided. The screen 20 also allows the ozone water to leak out of the perforations and eventually drain out of the liquid drain 19.

step (1), determining a disinfection and sterilization mode: placing the articles to be sterilized in the rotating cage 17; determining whether to adopt ozone water for disinfection or ozone gas for disinfection according to the type of the article to be disinfected and sterilized;

step (2), disinfection preparation: injecting air into the first cavity and injecting cold water into the second cavity; the control system opens or closes part of the electromagnetic valves according to the selected disinfection and sterilization mode; when ozone gas is adopted for disinfection and sterilization, the control system closes the first electromagnetic valve 3, the third electromagnetic valve 6, the fourth electromagnetic valve 11, the fifth electromagnetic valve 18 and the sixth electromagnetic valve 22 and opens the second electromagnetic valve 5; when ozone water is used for disinfection and sterilization, the control system closes the second electromagnetic valve 5, the fourth electromagnetic valve 11, the fifth electromagnetic valve 18 and the sixth electromagnetic valve 22, and opens the first electromagnetic valve 3 and the third electromagnetic valve 6;

and (3) disinfection and sterilization: the motor drives the rotating cage 17 to rotate; when ozone water is used for disinfection and sterilization, the ozone generating device 1 and the gas-water mixer 4 are opened, ozone prepared by the ozone generating device 1 is led into the gas-water mixer 4 through the ozone output pipe 2, ozone water generated under the action of the gas-water mixer 4 is led into the disinfection and sterilization chamber through the ozone-water input pipe 8, and simultaneously the ozone water is atomized under the action of the atomizing nozzle; when ozone gas is used for disinfection and sterilization, the ozone generating device 1 is opened, and ozone prepared by the ozone generating device 1 is led into a disinfection and sterilization chamber through the ozone output pipe 2 and the ozone input pipe 7;

when ozone gas is adopted for disinfection and sterilization, the motor, the ozone generating device 1 and the second electromagnetic valve 5 are closed, the sixth electromagnetic valve 22 and the air charging and discharging device 21 are opened, air is introduced into the second cavity, the middle spacer 13 is stretched and deformed by air pressure along with the introduction of the air, so that the volume of the second cavity is increased, when cold water in the second cavity is positioned at the bottom of the second cavity under the action of gravity, the air charging and discharging device 21 and the sixth electromagnetic valve 22 are closed, and at the moment, the part above the bottom of the second cavity is filled with the air; opening the heating device, raising the temperature in the disinfection and sterilization chamber to a preset value to decompose ozone, and opening the fourth electromagnetic valve 11, the fifth electromagnetic valve 18 and the exhaust fan 9 to exhaust gas when the ozone concentration detector detects that the concentration of ozone reaches a specified value or below;

when ozone water is adopted for disinfection and sterilization, the first electromagnetic valve 3, the third electromagnetic valve 6, the gas-water mixer 4 and the ozone generating device 1 are closed, the motor is kept to rotate, the sixth electromagnetic valve 22 and the air charging and discharging device 21 are opened, air is introduced into the second cavity, the middle partition sheet 13 is stretched and deformed by air pressure along with the introduction of the air, so that the volume of the second cavity is increased, when cold water in the second cavity is positioned at the bottom of the second cavity due to the action of gravity, the air charging and discharging device 21 and the sixth electromagnetic valve 22 are closed, and at the moment, the part above the bottom of the second cavity is filled with the air; turning on the heating device, raising the temperature in the disinfection and sterilization chamber to a preset value to decompose ozone, when the ozone concentration detector detects that the concentration of ozone reaches a specified value or below, turning off the motor, turning on the fourth electromagnetic valve 11 and the fifth electromagnetic valve 18, discharging liquid through the liquid discharge pipe 19, then turning on the exhaust fan 9, and discharging gas through the exhaust pipe 10;

and (5) taking out the sterilized articles.

In the method, when the ozone is eliminated in the step (4), air is introduced into the second cavity to enable the middle spacing sheet 13 to be stretched and deformed by air pressure, the volume of the second cavity is increased, cold water in the second cavity is located at the bottom of the second cavity due to the action of gravity, and the part above the bottom of the second cavity is filled with the air, so that when the heating device is opened, the heat generated by the heating device is prevented or reduced from being absorbed by the cold water in the second cavity, the energy utilization rate is reduced, and the heating of the interior of the disinfection and sterilization room is not facilitated; the selection is to continue to keep the motor rotating when the ozone water is adopted for disinfection and sterilization, so that the heat generated by the heating device can be utilized to uniformly heat the sterilized articles, and the water on the sterilized articles can be uniformly dried.

In the above method, when the ozone is eliminated in the step (4), the fourth electromagnetic valve 11 and the fifth electromagnetic valve 18 are opened during the air exhaust or water discharge, so that the air can be introduced from the liquid exhaust pipe 19 during the air exhaust, the gas in the disinfection and sterilization chamber can be exhausted from the exhaust pipe 10, and the air pressure balance is maintained; similarly, when the liquid is discharged, air can enter from the exhaust pipe 10, which is beneficial to discharging the liquid.

In addition, the articles to be sterilized can also be directly placed on the sieve plate 20 for sterilization.

The air charging and discharging device 21 adopted in the invention can suck air, so that the air in the second cavity can be sucked away, the middle spacer 13 recovers the original size, the volume of the second cavity is reduced, and the water in the second cavity can be distributed in each place of the second cavity again to prepare for next disinfection and sterilization.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. An ozone disinfection and sterilization device is characterized in that: the device comprises an ozone generating device, a gas-water mixer, a disinfection and sterilization chamber, an exhaust fan, an exhaust pipe, an ozone output pipe, an ozone input pipe, an ozone water input pipe, a liquid discharge pipe, an air charging and discharging device, an air passage, a plurality of electromagnetic valves and a control system; the walls around the disinfection and sterilization chamber comprise an outer layer plate, a middle spacing piece and an inner layer plate which are sequentially arranged from outside to inside, a first cavity is formed between the outer layer plate and the middle spacing piece, and a second cavity is formed between the middle spacing piece and the inner layer plate; the middle spacing piece is made of elastic rubber material; one end of the air passage is connected with the air charging and discharging device, the other end of the air passage is communicated with the second cavity at the top of the disinfection chamber, and a sixth electromagnetic valve is arranged on the air passage; a rotating cage is arranged in the middle of the disinfection and sterilization chamber, and comprises round end plates at two sides and a plurality of connecting rods which are arranged between the round end plates at two sides and are arranged at intervals; the circle center of the round end plate on one side is connected with one end of the transmission shaft, the other end of the transmission shaft extends out of the side wall of the disinfection and sterilization chamber and is connected with the belt pulley, and the output shaft of the motor drives the belt pulley to rotate through a belt, so that the transmission shaft drives the rotating cage to rotate; one end of the ozone output pipe is communicated with an ozone outlet of the ozone generating device, and the other end of the ozone output pipe is communicated with an air inlet of the air-water mixer; a first electromagnetic valve is arranged on an ozone output pipe between an air inlet of the air-water mixer and the ozone generating device; an opening is arranged on an ozone output pipe between the first electromagnetic valve and the ozone generating device and is connected with an ozone input pipe, and a second electromagnetic valve is arranged on the ozone input pipe; the output port of the gas-water mixer is communicated with an ozone water input pipe, and a third electromagnetic valve is arranged on the ozone water input pipe; the top wall of the disinfection chamber is provided with three openings which are respectively used for inserting an ozone input pipe, an ozone water input pipe and a communicated exhaust pipe; one end of the ozone water input pipe, which is positioned in the disinfection and sterilization chamber, is connected with an atomizing nozzle; a fourth electromagnetic valve and an exhaust fan are sequentially arranged at one end of the exhaust pipe close to the disinfection and sterilization chamber; a liquid discharge pipe is arranged at the lower end part of the side wall of the disinfection and sterilization chamber, and a fifth electromagnetic valve is arranged on the liquid discharge pipe; a sieve plate is arranged at the middle lower part of the sterilizing chamber; an ozone concentration detector and a temperature sensor are arranged in the disinfection chamber; the inner layer plate of the disinfection chamber is provided with a heating device.

2. The ozone sterilization and disinfection apparatus of claim 1, wherein: the heating device is an electric heating device.

3. The ozone sterilization and disinfection apparatus of claim 1, wherein: the circle center of the round end plate at the other end of the rotating cage is also connected with a transmission shaft, and one end of the transmission shaft, which is far away from the round end plate, is connected with a bearing arranged on the outer layer plate of the side wall.

4. The ozone sterilization and disinfection apparatus of claim 1, wherein: and air or heat preservation and insulation materials are filled in a first cavity formed between the outer layer plate and the middle spacer.

5. The ozone sterilization and disinfection apparatus of claim 1, wherein: and the outer sides of the ozone output pipe, the ozone input pipe and the ozone water input pipe are provided with heat insulation layers.

6. The ozone sterilization and disinfection apparatus of claim 1, wherein: the rotating cage is provided with a loose-leaf door in the circumferential direction, the disinfection chamber is a cuboid, and one side of the cuboid is provided with a door.

7. The method for sterilization using the ozone sterilization device according to any one of claims 1 to 6, wherein: the method comprises the following steps:

and (5) taking out the sterilized articles.