A high efficiency ozone sterilizer

Abstract

The application relates to the field of air disinfection equipment, in particular to an efficient ozone disinfection machine. The efficient ozone disinfection machine comprises a shell, a fan module, a DBD module, a liquid cooling module, a power supply and a control module; the top surface of the shell is provided with an air inlet, and the lower end is provided with an ozone discharge outlet. The application solves the problems in the existing ozone disinfection machine, i.e. the poor heat dissipation effect of the DBD module leads to low ozone generation efficiency, the high temperature of the DBD module leads to short service life of the DBD module, and the ozone is difficult to discharge near the DBD module.

Description

Technical Field

[0001] This invention relates to the field of air disinfection equipment, and more particularly to a high-efficiency ozone disinfection machine. Background Technology

[0002] Since February 2020, the novel coronavirus (2019-nCoV), which is highly transmissible from person to person, has been prevalent globally. The fight against the novel coronavirus epidemic mainly relies on disinfectants such as 84 disinfectant (sodium hypochlorite), peracetic acid (diethyl disinfectant), and medical ethanol, which are sold in the market and packaged in containers of 500 ml or more. These disinfectants are sprayed using backpack sprayers or wiped with a cloth soaked in disinfectant.

[0003] Ozone, with the chemical formula O3, is also known as superoxide, trioxygen, or active oxygen. National P3 laboratories have demonstrated that ozone has a 99.3% inactivation rate against the SARS virus. When the ozone concentration is 17.82 mg / L for 4 minutes and 4.86 mg / L for 10 minutes, the inactivation rate of the SARS virus can reach 100%. Both the novel coronavirus and SARS are coronaviruses, and they share similar transmission methods.

[0004] Ozone is one of the strongest oxidants in nature; it decomposes to produce highly oxidizing monatomic oxygen (O) and hydroxyl groups (OH), which can rapidly penetrate cell walls, destroying the internal structure of bacteria, viruses, and other microorganisms. It has a strong killing effect on various pathogenic microorganisms, including coronaviruses. The sterilization and disinfection process mainly destroys bacterial organelles and DNA / RNA, disrupting bacterial metabolism and leading to bacterial death. Ozone acts on the four polypeptide chains of the viral capsid protein and damages RNA, destroying the proteins that form it. The novel coronavirus is a virus that spreads via RNA, and ozone's destructive effect on RNA determines its excellent inactivation effect on coronaviruses, especially the novel coronavirus.

[0005] Ozone sterilizers are widely used in space disinfection. Most existing ozone sterilizers on the market employ the dielectric barrier discharge (DBD) method. This method generates a corona discharge in the gas through an alternating high-voltage electric field. The free high-energy electrons in the corona dissociate oxygen molecules, which then collide and aggregate to form ozone molecules. However, existing ozone sterilizers have several problems: the DBD ozone generator module is located on the side of the cross-flow impeller. Since the airflow from the cross-flow impeller is from one side to the other, it's difficult to move the air along the side of the impeller, leading to ozone accumulation near the DBD ozone generator module and difficulty in dissipating it. Conversely, placing the DBD ozone generator near the airflow inlet or outlet of the cross-flow impeller results in poor ionization efficiency because the airflow is too fast, preventing the DBD ozone generator module from ionizing the surrounding oxygen molecules sufficiently. Furthermore, the heat dissipation of the DBD ozone generator module has not been effectively improved. Summary of the Invention

[0006] Therefore, this invention addresses the above-mentioned problems by providing a highly efficient ozone sterilizer. Specifically, it solves the problems in existing ozone sterilizers such as poor heat dissipation of the DBD module leading to low ozone generation efficiency, excessively high DBD module temperature resulting in short DBD module lifespan, and ozone accumulation near the DBD module that is difficult to expel. This invention achieves the above objectives through the following technical solution:

[0007] A high-efficiency ozone sterilizer includes: a shell, a fan module, a DBD module, a liquid cooling module, a power supply and a control module;

[0008] An air inlet is provided on the top surface of the outer casing, and an ozone outlet is provided at the bottom.

[0009] The fan module includes: a motor housed in the housing; a liquid circulation zone, a cross-flow blade zone, and an axial flow blade zone arranged sequentially and sharing a fan shaft with the motor; and a DBD module and a power supply and control module are provided at the front end of the air inlet of the axial flow blade zone.

[0010] The cross-flow blade area includes: cross-flow blades disposed on a support plate, the support plate being disposed on the wind shaft; the liquid circulation area is fixedly connected to the motor housing, and includes: circulation blades disposed on the fan shaft, and a circulation chamber for containing coolant; the liquid cooling module includes: liquid cooling conductors fixedly disposed between the DBD generating plates of the DBD module, and conduits passing through the front and rear of the fan module and connected to both sides of the liquid circulation area.

[0011] The beneficial effects of this invention are as follows:

[0012] 1. The liquid circulation zone of this invention is provided with several circulation blades. The circulation blades are uniformly fixed on the part of the fan shaft located inside the liquid circulation zone. The internal space of the liquid circulation zone forms a circulation cavity. When the fan module is running, the circulation blades also rotate around the fan shaft. The circulation blades will drive the coolant in the circulation cavity to flow. While the fan module realizes the intake of air and ozone, it drives the coolant to circulate, thereby improving the energy utilization rate.

[0013] 2. The liquid-cooled conductor of the present invention has conduits connected to both ends. The conduits at both ends pass through the front and rear of the fan module and finally connect to both sides of the liquid circulation zone. The airflow blown by the fan module blows onto the conduit in front of the fan module to cool the coolant. By utilizing the airflow blown by the fan module to cool the coolant, the cooling efficiency of the liquid-cooled module is improved, further enhancing the heat dissipation effect of the DBD module, improving the efficiency of ozone generation by the DBD module, and extending the service life of the DBD module. Attached Figure Description

[0014] Figure 1This is a schematic diagram of the overall structure of the present invention.

[0015] Figure 2 This is a schematic diagram of the internal structure of the present invention.

[0016] Figure 3 A schematic diagram showing the detailed structural configuration of the DBD module and liquid cooling module of the present invention.

[0017] Figure 4 This is a schematic diagram of the liquid circulation zone of the present invention.

[0018] Figure 5 This is a cross-sectional view of the liquid circulation zone of the present invention.

[0019] Figure 6 This is a detailed structural diagram of the support plate of the present invention.

[0020] The components are as follows: 1. Outer shell; 2. Fan module; 3. DBD module; 4. Liquid cooling module; 5. Power supply and control module; 11. Air inlet; 12. Ozone outlet; 21. Axial flow blade area; 22. Cross-flow blade area; 23. Liquid circulation area; 24. Motor; 25. Fan shaft; 31. DBD generator plate; 41. Liquid cooling conductor; 42. Conduit; 221. Cross-flow blade; 222. Support plate; 231. Circulation blade; 232. Circulation chamber; 2221. Vent. Detailed Implementation

[0021] Preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, which will facilitate the implementation of these embodiments by those skilled in the art. However, the invention can be implemented in various different forms, and therefore is not limited to the embodiments described below. Furthermore, for clarity, components not connected to the invention will be omitted from the drawings.

[0022] like Figure 1 , Figure 2 As shown, a high-efficiency ozone sterilizer includes: a shell 1, a fan module 2, a DBD module 3, a liquid cooling module 4, and a power supply and control module 5.

[0023] like Figure 1 As shown, the outer casing 1 includes: an air inlet 11 and an ozone outlet 12; the outer casing 1 is a rectangular box, and the top of the outer casing 1 has an air inlet 11. The air inlet 11 consists of multiple straight slots arranged in parallel. When the sterilizer is running, air enters the sterilizer through the air inlet 11. The ozone outlet 12 is located at the lower front of the outer casing. When the sterilizer is running, the mixture of ozone and air is discharged from the ozone outlet 12.

[0024] like Figure 2As shown, the fan module 2 is fixedly installed inside the housing 1. The fan module 2 includes: an axial blade area 21, a cross-flow blade area 22, a liquid circulation area 23, a motor 24, and a fan shaft 25. The axial blade area 21, the cross-flow blade area 22, the liquid circulation area 23, and the motor 24 are connected in series coaxially. The axial blade area 21, the cross-flow blade area 22, and the liquid circulation area 23 share a single fan shaft 25. A DBD module 3 and a power supply and control module 5 are fixedly installed in front of the air outlet at the front end of the axial blade area 21. The power supply and control module 5 is fixedly installed inside the housing 1 to supply power to the other modules and to control the operation of the DBD module 3 and the fan module 2. The DBD module 3 is fixedly installed above the power supply and control module 5. The DBD module 3 and the fan module 2 are connected to the power supply and control module 5 through a signal line. The power supply and control module 5 can receive wireless signals sent by the user and control the operation of the fan module 2 and the DBD module 3.

[0025] like Figure 2 As shown, the cross-flow blade area 22 includes: cross-flow blades 221 and support plate 222; the impeller of the cross-flow blade area 22 is multi-bladed and long cylindrical, with forward multi-wing blades. The cross-flow blades 221 are uniformly fixed on the support plate 222 at a certain angle. The support plate 222 divides the cross-flow blade area 22 into 4 blade cages. The cross-flow blade area 22 and the axial blade area 21 share a fan shaft 25. The fan shaft 25 is connected to the main shaft of the motor 24, and the fan shaft 25 passes through the center of the support plate 222 and is fixed thereto. Therefore, the fan shaft 25 can drive the cross-flow blade area 22 and the axial blade area 21 to rotate.

[0026] like Figure 6 As shown, the support plate 222 is a circular thin plate, and six ventilation holes 2221 are evenly opened on the circular surface of the support plate 222 around the central axis of the support plate 222. The ventilation holes 2221 are used to ensure the airflow inside the cross-flow blade area 22. The support plate 222 is used to support the cross-flow blade 221 and drive the cross-flow blade 221 to rotate.

[0027] like Figure 4 , Figure 5As shown, the liquid circulation zone 23 includes: circulation blades 231 and circulation chamber 232. The liquid circulation zone 23 is fixedly connected to the housing of the motor 24. The fan shaft 25 is connected to the shaft of the motor 24. The fan shaft 25 passes through one end of the liquid circulation zone 23 near the motor 24 and extends to the other end of the liquid circulation zone 23. The fan shaft 25 is rotatably connected to and sealed to the liquid circulation zone 23. Several circulation blades 231 are provided inside the liquid circulation zone 23. The circulation blades 231 are evenly fixed on the part of the fan shaft 25 located inside the liquid circulation zone 23. The internal space of the liquid circulation zone 23 forms the circulation chamber 232. When the fan module 2 is running, the circulation blades 231 also rotate around the fan shaft 25. The circulation blades 231 will drive the coolant in the circulation chamber 232 to flow.

[0028] like Figure 2 , Figure 3 As shown, the DBD module 3 includes: a DBD generating plate 31; there are two DBD generating plates 31, arranged in parallel and vertically, with a certain distance between the two DBD generating plates 31; the liquid cooling module 4 includes: a liquid cooling conductor 41 and a conduit 42; the liquid cooling conductor 41 is made of a material with good thermal conductivity, the liquid cooling conductor 41 is hollow inside, the liquid cooling conductor 41 is fixedly arranged between the two DBD generating plates 31 and the liquid cooling conductor 41 is in full contact with the two DBD generating plates 31 respectively, and the two ends of the liquid cooling conductor 41 are respectively connected to the conduit 42, the two ends of the conduit 42 pass through the front and rear of the fan module 2 and finally connect to the two sides of the liquid circulation zone 23, the liquid cooling conductor 41, the conduit 42 and the circulation chamber 232 are filled with a coolant with good thermal conductivity.

[0029] Working principle of the invention:

[0030] When the power is turned on, the user sends a wireless signal to remotely control the power supply and control module 5. The fan module 2 and DBD module 3 start to operate. The DBD module 3 starts to generate ozone. The negative pressure generated by the rotation of the axial blade area 21 draws ozone into the fan module 2. The cross-flow blade area 22 rotates to draw air into the fan module 2 from above and mix it with ozone. The air-ozone mixture is discharged from the front of the cross-flow blade area 22 and then from the fan module 2. The circulation blade 231 rotates to drive the circulation chamber 232 and the coolant in the liquid cooling module 4 to circulate. The liquid cooling conductor 41 absorbs the heat generated by the DBD module 3 during operation. The coolant after absorbing the heat from the liquid cooling conductor 41 flows out from the front of the liquid cooling conductor 41 and flows past the front of the fan module 2. The airflow blown out by the fan module 2 blows onto the duct 42 in front of the fan module 2 to cool the coolant. The airflow blown out by the fan module 2 is finally discharged from the outer shell 1 of the sterilizer through the ozone outlet 12.

Claims

1. A high efficiency ozone disinfection machine comprising: The shell (1), the fan module (2), the DBD module (3), the liquid cooling module (4), the power supply and control module (5); The shell (1) is provided with an air inlet (11) on the top surface and an ozone outlet (12) at the lower end; The fan module (2) comprises a motor (24) arranged in the shell (1), a liquid circulation area (23), a cross-flow blade area (22) and an axial-flow blade area (21) arranged in sequence and sharing a fan shaft (25) with the motor (24); the DBD module (3) and the power supply and control module (5) are arranged at the front end of the axial-flow blade area (21) air inlet; The cross-flow blade area (22) comprises cross-flow blades (221) arranged on a support plate (222) arranged on the fan shaft (25); the liquid circulation area (23) is fixedly connected with the motor (24) housing and comprises circulation blades (231) arranged on the fan shaft (25) and a circulation cavity (232) containing cooling liquid; the liquid cooling module (4) comprises liquid cooling conductors (41) fixedly arranged between DBD generating plates (31) of the DBD module and a duct (42) passing through the front and rear of the fan module (2) and connected to both sides of the liquid circulation area (23); The support plate (222) is a circular thin plate; A plurality of air holes (2221) are evenly arranged on the circular surface of the support plate (222) around the central axis of the support plate (222).

2. The high efficiency ozone sterilizer of claim 1, wherein: The DBD module (3) and the fan module (2) are connected to the power supply and control module (5) through signal lines.

3. The high efficiency ozone sterilizer of claim 1, wherein: The liquid cooling conductor (41) is made of a material with good heat conduction performance.

4. The high efficiency ozone sterilizer of claim 3, wherein: The liquid cooling conductor (41) is hollow.

Images