CN215372850U

CN215372850U - Plasma infrared sterilizing device for air inlet pipeline of air conditioner

Info

Publication number: CN215372850U
Application number: CN202120575740.3U
Authority: CN
Inventors: 张信华; 杜建建; 常志东; 游帆; 蔡小红
Original assignee: Suzhou Enqi Medical Equipment Co ltd
Current assignee: Suzhou Enqi Medical Equipment Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-12-31
Anticipated expiration: 2031-03-22

Abstract

The utility model discloses a plasma infrared sterilizing device of an air-conditioning air inlet pipeline, which relates to the field of sterilization and comprises an air-conditioning host and a control module, wherein the air-conditioning host comprises the air-conditioning air inlet pipeline, one end of the air-conditioning air inlet pipeline is fixedly connected with a ceramic infrared heating pipe, the surface of the air-conditioning air inlet pipeline is fixedly connected with a fixing ring, the fixing ring is fixedly connected with a low-temperature plasma generator, and one end of the low-temperature plasma generator is fixedly connected with an axial flow fan; control module includes intelligent temperature controller and drive module, and intelligent temperature controller is connected with ceramic infrared heating pipe for control ceramic infrared heating pipe produces the high temperature infrared ray, and drive module is connected with low temperature plasma generator, and drive module is used for supplying power to low temperature plasma generator, and drive module is connected with control module, and control module is used for controlling drive module, and the advantage lies in: the disinfection and sterilization are quick and effective, the environment is protected, no pollution is caused, no drug residue is caused, and the energy consumption is low.

Description

Plasma infrared sterilizing device for air inlet pipeline of air conditioner

Technical Field

The utility model relates to the field of disinfection and sterilization, in particular to a plasma infrared disinfection device for an air inlet pipeline of an air conditioner.

Background

The U.S. MSN website reports that scientists have discovered traces of new coronaviruses from airborne dust in a hospital. New studies have shown that such viruses may be transmitted inside buildings through air conditioning systems and even ventilation ducts. The general indoor central air-conditioning system only has an initial-effect filter screen, does not have the capability of filtering pm-level particulate matters, and can not filter bacteria, viruses and fine particulate matters which are transmitted through aerosol. The pipeline and the return air inlet of the air conditioner become places for storing dirt and scale, and bacteria and viruses are easy to breed, so that the central air conditioner becomes an important indoor propagation source and propagation channel.

At present, the main prevention technologies for microbial pollution in indoor air include physical filtration, chemical disinfection, ultraviolet disinfection, electrostatic adsorption and the like. However, these techniques have their drawbacks and disadvantages: the physical filtering method mainly adopts the methods of arranging HEPA filter screens in ventilation pipelines and the like, has better purifying effect, can often physically filter more than 90 percent of microorganisms, but the HEPA filter screens have too fast performance attenuation and need to be frequently replaced, and the filter screens are also infected with viruses when replaced. The chemical disinfection method comprises the steps of using a bactericidal solvent (such as alcohol, 84 disinfectant and the like) and a bactericidal gas (such as ozone and the like) to disinfect air conditioning pipelines and the like, has a good effect, but also has the problem that the disinfection can only be carried out in a time slot when the air conditioner is not operated, and the risks of chemical substance residue, flammability and explosiveness are caused when a large amount of the bactericidal solvent is used. Both the sterilization solvent and the sterilization gas have peculiar smell, are not environment-friendly and are difficult to be applied to the situation of real-time sterilization of central air conditioners in the environment.

The ultraviolet ray sterilization method is also a common method for sterilization and disinfection, but effective sterilization is premised on sufficient time and sufficient dose of irradiation. The air conditioner is not suitable for being used when the air conditioner operates, because in an air conditioning system, air is circulated and flows out quickly, the time of ultraviolet radiation of the air is short actually, and the actual disinfection and sterilization effects are extremely limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems, the technical scheme provides the plasma infrared sterilizing device for the air inlet pipeline of the air conditioner, and the premise that the ultraviolet sterilizing method provided in the background technology is effective sterilization is enough irradiation amount with enough time and enough dosage is solved. The air conditioner is not suitable for being used during the operation of the air conditioner, because the air is circulated and flowed out quickly in the air conditioning system, the time of ultraviolet radiation air is short actually, and the actual disinfection and sterilization effects are extremely limited.

In order to achieve the above purposes, the technical scheme adopted by the utility model is as follows:

a plasma infrared killing device of an air conditioner air inlet pipeline comprises an air conditioner host and a controller, wherein the air conditioner host comprises the air conditioner air inlet pipeline, one end of the air conditioner air inlet pipeline is fixedly connected with a ceramic infrared heating pipe, the surface of the air conditioner air inlet pipeline is fixedly connected with a fixing ring, a low-temperature plasma generator is fixedly connected onto the fixing ring, and one end of the low-temperature plasma generator is fixedly connected with an axial flow fan;

the control module comprises an intelligent temperature controller and a driver, the intelligent temperature controller is connected with the ceramic infrared heating pipe and used for controlling the ceramic infrared heating pipe to generate high-temperature infrared rays, the driving module is connected with the low-temperature plasma generator and used for supplying power to the low-temperature plasma generator, the driving module is connected with the control module, and the control module is used for controlling the driving module.

Preferably, low temperature plasma generator includes insulating casing, insulating casing upper end fixedly connected with ground connection copper electrode, ground connection copper electrode one end fixedly connected with plasma nozzle, the ground connection copper electrode other end is connected with high-pressure nickel copper electrode, high-pressure nickel copper electrode sets up inside insulating casing, the insulating casing lower extreme is fixed with the fan gas circuit.

Preferably, the surface of the high-voltage nickel-copper electrode is fixedly connected with a ceramic medium, one end of the ceramic medium is connected with a grounding copper electrode, and the grounding copper electrode is fixedly connected with the high-voltage nickel-copper electrode through the ceramic medium.

Preferably, the plasma nozzle is arranged inside an air inlet pipeline of the air conditioner, and the air passage of the fan is fixedly connected with the axial flow fan.

Compared with the prior art, the utility model has the advantages that: the low-temperature plasma module ionizes air in the plasma generator to generate plasma under the drive of a circuit, 4 plasma generators jointly form a plasma 'wall', air flowing through an air inlet pipeline is killed, secondary disinfection is achieved in an infrared heating ring mode, a ceramic infrared heating pipe generates high-temperature infrared rays under the control of an intelligent temperature controller, and secondary disinfection and killing are conducted on inflowing air, and the disinfection and killing device provided by the utility model is quick and effective in disinfection and sterilization: the low-temperature plasma has extremely strong sterilization effect, and can complete the complete sterilization of flowing air in a short time by combining the high-temperature sterilization of an infrared sterilizer; environmental protection and no pollution: toxic and harmful substances are not generated in the working process of the equipment, so that secondary pollution to the environment and air is avoided; no drug residue: chemical medicines are not used in the disinfection process, so that medicine residues are avoided; low energy consumption: is 1/3-1/2 of ultraviolet ray sterilizing and electrostatic adsorbing device with the same specification.

Drawings

FIG. 1 is a schematic structural view of a plasma infrared sterilizer for an air inlet duct of an air conditioner according to the present invention;

fig. 2 is a schematic structural diagram of a low-temperature plasma generator in the plasma infrared killing device for the air inlet duct of the air conditioner.

The reference numbers in the figures are: 1. a ceramic infrared heating tube; 2. an axial flow fan; 3. a fixing ring; 4. an intelligent temperature controller; 5. a drive module; 6. a control module; 7. a low temperature plasma generator; 8. an air inlet pipeline of an air conditioner; 9. A plasma nozzle; 10. a grounding copper electrode; 11. a high voltage nickel copper electrode; 12. a ceramic dielectric; 13. an insulating housing; 14. and a fan gas circuit.

Detailed Description

The following description is presented to disclose the utility model so as to enable any person skilled in the art to practice the utility model. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

Referring to fig. 1-2, a plasma infrared sterilizing device for an air-conditioning air inlet duct comprises an air-conditioning host and a controller, wherein the air-conditioning host comprises an air-conditioning air inlet duct 8, one end of the air-conditioning air inlet duct 8 is fixedly connected with a ceramic infrared heating tube 1, the ceramic infrared heating tube 1 can generate high-temperature infrared rays, a fixing ring 3 is fixedly connected to the surface of the air-conditioning air inlet duct 8, a plurality of low-temperature plasma generators 7 are fixedly connected to the fixing ring 3, the plurality of low-temperature plasma generators 7 can be uniformly arranged on the fixing ring 3, the plurality of plasma generators 7 form a plasma wall together when sterilizing, air flowing through the air inlet pipeline is killed, one end of the low-temperature plasma generator 7 is fixedly connected with an axial flow fan 2, and low-temperature plasma generated in the low-temperature plasma generator 7 is blown into the air inlet pipeline 8 by the axial flow fan 2;

the controller includes intelligent temperature controller 4 and drive module 5, intelligent temperature controller 4 is connected with ceramic infrared heating pipe 1, be used for controlling ceramic infrared heating pipe 1 to produce high temperature infrared ray, drive module 5 is connected with low temperature plasma generator 7, drive module 5 is used for supplying power to low temperature plasma generator 7, drive module 5 is connected with control module 6, control module 6 is used for controlling drive module 5, can carry high frequency high voltage electric excitation to low temperature plasma generator 7 through control module 6 and drive module 5.

The low-temperature plasma generator 7 comprises an insulating shell 13, the upper end of the insulating shell 13 is fixedly connected with a grounding copper electrode 10, one end of the grounding copper electrode 10 is fixedly connected with a plasma nozzle 9, the plasma nozzle 9 is arranged inside an air inlet pipeline 8 of the air conditioner, the other end of the grounding copper electrode 10 is connected with a high-voltage nickel-copper electrode 11, the surface of the high-voltage nickel-copper electrode 11 is fixedly connected with a ceramic medium 12, one end of the ceramic medium 12 is connected with the grounding copper electrode 10, the grounding copper electrode 10 is fixedly connected with the high-voltage nickel-copper electrode 11 through the ceramic medium 12, the high-voltage nickel-copper electrode 11 is arranged inside the insulating shell 13, the lower end of the insulating shell 13 is fixed with a fan air passage 14, the fan air passage 14 is fixedly connected with the axial flow fan 2, the cavity of the low-temperature plasma reactor 7 is ionized under the high-frequency and high-voltage electric excitation generated by the control module 6 and the drive module 5, and the low-temperature plasma generated by ionization forms a uniform large-area plasma in the air inlet pipeline under the action of the axial flow fan The body is a 'wall'. The air flow in the air inlet pipe of the central air conditioner passes through the plasma 'wall', the internal microorganisms are quickly killed, and the propagation and the parasitism of harmful bacteria/viruses in the central air conditioner pipe are avoided.

The sterilization and disinfection mechanism of the low-temperature plasma mainly comprises four aspects: (1) electric field tearing effect: the plasma device can continuously generate positive and negative ions with very high concentration, the shearing force generated by the positive and negative ions on the surface of the microorganism is greater than the surface tension of the cell membrane of the microorganism under the action of an electric field, and the wall membrane of the microorganism is seriously damaged in the energy release process, so that the microorganism is killed. (2) High-speed particle breakdown effect: when the average electric field strength exceeds a certain strength, the accelerated high-speed particles can break down the surfaces of microorganisms to destroy the microorganisms. (3) Ultraviolet light radiation: a large amount of uv light can be emitted during the plasma generation process. The high-energy ultraviolet photons are absorbed by nucleic acids such as DNA and the like to play a role in sterilization and disinfection. (4) Action of energetic particles and active radicals: the oxidizing gas plasma contains a large amount of active substances such as atomic oxygen, free radicals and the like, and the active substances are easy to react with proteins, nucleic acids and lipid layers in microorganisms to cause denaturation, so that bacteria/viruses die.

In conclusion, the utility model has the advantages that the sterilization is fast and effective through the secondary disinfection of the low-temperature plasma wall and the high-temperature infrared ray: the low-temperature plasma has extremely strong sterilization effect, and can complete the complete sterilization of flowing air in a short time by combining the high-temperature sterilization of an infrared sterilizer; environmental protection and no pollution: toxic and harmful substances are not generated in the working process of the equipment, so that secondary pollution to the environment and air is avoided; no drug residue: chemical medicines are not used in the disinfection process, so that medicine residues are avoided; low energy consumption: is 1/3-1/2 of ultraviolet ray sterilizing and electrostatic adsorbing device with the same specification.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the utility model, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The plasma infrared killing device for the air conditioner air inlet pipeline is characterized by comprising an air conditioner host and a controller, wherein the air conditioner host comprises an air conditioner air inlet pipeline (8), one end of the air conditioner air inlet pipeline (8) is fixedly connected with a ceramic infrared heating pipe (1), the surface of the air conditioner air inlet pipeline (8) is fixedly connected with a fixing ring (3), the fixing ring (3) is fixedly connected with a low-temperature plasma generator (7), and one end of the low-temperature plasma generator (7) is fixedly connected with an axial flow fan (2);

the controller includes intelligent temperature controller (4) and drive module (5), intelligent temperature controller (4) are connected with ceramic infrared heating pipe (1) for control ceramic infrared heating pipe (1) produces the high temperature infrared ray, and drive module (5) are connected with low temperature plasma generator (7), and drive module (5) are used for supplying power to low temperature plasma generator (7), drive module (5) are connected with control module (6), control module (6) are used for controlling drive module (5).

2. The plasma infrared killing device for the air inlet pipeline of the air conditioner is characterized in that the low-temperature plasma generator (7) comprises an insulating shell (13), a grounding copper electrode (10) is fixedly connected to the upper end of the insulating shell (13), a plasma nozzle (9) is fixedly connected to one end of the grounding copper electrode (10), a high-voltage nickel-copper electrode (11) is connected to the other end of the grounding copper electrode (10), the high-voltage nickel-copper electrode (11) is arranged inside the insulating shell (13), and a fan air passage (14) is fixed to the lower end of the insulating shell (13).

3. The plasma infrared killing device for the air inlet pipe of the air conditioner as claimed in claim 2, wherein the surface of the high-voltage nickel-copper electrode (11) is fixedly connected with a ceramic medium (12), one end of the ceramic medium (12) is connected with the grounding copper electrode (10), and the grounding copper electrode (10) is fixedly connected with the high-voltage nickel-copper electrode (11) through the ceramic medium (12).

4. The plasma infrared killing device for the air inlet pipeline of the air conditioner as claimed in claim 2, wherein the plasma nozzle (9) is arranged inside the air inlet pipeline (8) of the air conditioner, and the fan air passage (14) is fixedly connected with the axial flow fan (2).