Plasma sterilization air shower

Abstract

The application provides a plasma disinfection air shower, which comprises an air shower, a plasma generating device and an air duct; wherein the air shower comprises a door, the air duct is installed on the side wall of the air shower, a filter screen is arranged in the air duct, and the plasma generating device is located in the air duct. The application has the beneficial effects that: the plasma generating device can generate high-concentration plasma, the air entering the air duct can be disinfected and sterilized, the bacteria on the filter screen can be effectively disinfected and sterilized, the problem of secondary pollution caused by the bacteria breeding on the high-efficiency filter screen of the traditional air shower is solved, and no chemical reagent or other medical consumables are used, which is economic and environmentally friendly.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of disinfection, in particular to a plasma disinfection air shower. BACKGROUND

[0002] Under the requirements of the production quality management specification, the pharmaceutical, semiconductor, food processing and other industries have strict control requirements for the environmental suspended particles and microorganisms in the production and experimental sites. For example, the sterile production of drugs must rely on a clean room to achieve, not only the suspended dust in the air needs to be controlled, but also the number of living microorganisms needs to be controlled, so a stable and reliable disinfection procedure is an important link to ensure production quality. At present, in order to prevent external personnel from bringing contaminants into the clean area, most enterprises set up air showers between the clean area and the non-clean area to achieve the purpose of purification by removing dust from the surface of personnel and goods. Most of the air shower products on the market only provide high-speed clean airflow to blow off the dust carried by the personnel, and do not have the function of sterilization. A large amount of dust and the bacteria carried by the dust are easily accumulated on the filter screen in the air duct, which can easily cause secondary pollution. A small part of the air shower products provide a sterilizing agent spraying device, which can atomize and spray the sterilizing agent to the surface of the human body or object for disinfection treatment. The defect of this method is that it needs to continuously supply disinfectant and other medical consumables, which is harmful to the human body, has low sterilization efficiency, and because the spraying sterilization link needs to be performed after dust removal, it needs to spend more processing time or occupy more working space when implemented. In general, the air shower also sets up a sterilization device such as an ultraviolet lamp, since the ultraviolet light and the ozone excited by the ultraviolet light are both harmful to the human body, this method can only perform static disinfection in the air shower under the condition that there is no one, and cannot perform dynamic disinfection under the condition that there is someone. SUMMARY

[0003] In order to solve the above technical problems, a plasma disinfection air shower is disclosed in the present application, and the technical scheme of the present application is implemented as follows:

[0004] A plasma disinfection air shower, comprising an air shower, a first plasma emitting device and an air duct; wherein the air shower comprises a door, the air duct is installed on the side wall of the air shower, a fan is arranged in the air duct, and the plasma generating device is located in the air duct.

[0005] Preferably, a second plasma generating device is further included; the second plasma generating device is installed on the top or side of the air shower.

[0006] Preferably, the air duct further comprises a filter screen, and the filter screen is located in the air duct.

[0007] Preferably, the filter screen comprises a primary efficiency filter screen and a high efficiency filter screen; the primary efficiency filter screen is located at the air inlet of the air duct, and the high efficiency filter screen is located at the air outlet of the air duct.

[0008] Preferably, the first and second plasma generating devices use micro-nano fiber clusters as ion release devices.

[0009] Preferably, the first and second plasma generating devices both use high-voltage power supplies operating in constant current mode.

[0010] Preferably, a third plasma generating device is further included, which is located at the air outlet of the air duct and is located at the downwind outlet of the high-efficiency filter screen.

[0011] The technical scheme of the present application can solve the technical problems of the prior art that the air shower room does not have a disinfection function or the disinfection effect is poor, and cannot disinfect in the presence of people. The technical scheme of the present application can generate a large number of positive and negative ions through the use of a plasma emitting device, thereby achieving the technical effect of disinfecting and sterilizing air flow. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only one embodiment of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0013] Wherein the same parts are denoted by the same reference numerals. It should be noted that the words "front", "back", "left", "right", "up" and "down" used in the following description refer to the directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from the geometric center of a particular part.

[0014] Figure 1 is a structural schematic diagram of the present patent;

[0015] Figure 2 is a schematic diagram of the first, second or third plasma generating device;

[0016] Figure 3 is a schematic diagram of the first, second or third plasma generating device and the air flow passing through it.

[0017] In the above drawings, each figure number mark represents:

[0018] 1, air shower room

[0019] 1-1, door

[0020] 2, first plasma generating device

[0021] 3. Air duct

[0022] 3-1, Fan

[0023] 3-2, Filter

[0024] 3-2-1, Pre-filter; 3-2-2, High-efficiency filter.

[0025] 4. Second plasma generator

[0026] 5. Third plasma generator Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example

[0029] In one specific embodiment, such as Figure 1 , Figure 2 and Figure 3 As shown, a plasma disinfection air shower includes an air shower 1, a first plasma generating device 2, and an air duct 3; wherein, the air shower 1 includes a door, the air duct 3 is installed on the side wall of the air shower 1, a fan 3-1 is installed in the air duct 3, and the plasma generating device is located in the air duct 3.

[0030] In this embodiment, since the germs carried on the surface of the human body or objects are mostly attached to dust particles, after entering the air shower 1, the dust particles carrying germs are released into the air under the action of the high-speed jet airflow from the air shower nozzles. The sealed air in the air shower 1 enters the air duct 3 under the action of the fan 3-1. In the air duct 3, it passes through the first plasma generator 2. The first plasma emitter 2 is energized and releases a large number of positive and negative ions. These positive and negative ions form a high-concentration plasma inactivation zone in the air duct 3. The airflow passes through the inactivation zone, and the germs carried in the air and the germs attached to the dust particles are exposed to the high concentration of positive and negative ions and antibacterial groups and are quickly eliminated. Then, the disinfected and sterilized air passes through the air shower nozzles and is ejected in the form of a high-speed jet airflow, and re-enters the air shower 1. It continuously circulates between the air shower 1 and the air duct 3, achieving the effect of disinfection and sterilization of the human body or object surface. This method is simple and convenient, and it does not use chemical reagents for disinfection. It requires no consumables, is green and environmentally friendly, and can dynamically disinfect and sterilize even when people are present. Compared with ordinary air showers, which can only remove bacteria and dust from the human body and object surfaces but cannot kill bacteria, and the remaining bacteria still pose a risk of secondary pollution, the purification effect of this embodiment is better.

[0031] In a preferred embodiment, the second plasma generating device 4 is installed on the top or side of the air shower room 1.

[0032] In the present embodiment, since the second plasma generating device 4 is installed on the top or side of the air shower room 1, when sterilization is performed, first, air enters the air duct 3 from the air shower room 1 under the action of the fan 3-1, passes through the first plasma generating device 2 in the air duct 3, and a large number of positive and negative ions are emitted from the first plasma emitting device 2, which form a high-concentration plasma inactivation zone in the air duct 3. The bacteria carried by the air and the bacteria attached to the dust in the air are exposed to the high-concentration positive and negative ions and the antibacterial groups and are rapidly eliminated. The air that has been sterilized and disinfected reenters the air shower room 1 and circulates between the air shower room 1 and the air duct 3. Second, since the bacteria carried by the human body or the surface of the object are mostly attached to dust particles, and the high-speed jet flow sprayed by the air shower nozzle cannot completely remove all the dust particles on the surface of the human body or the object, a large number of positive and negative ions are directly released into the air shower room 1 by the second plasma generating device 4, forming a second high-concentration inactivation zone, and the bacteria carried by the human body and the object are eliminated under the action of the high-concentration positive and negative ions and the antibacterial groups, achieving better purification effect.

[0033] In a preferred embodiment, the air duct 3 further comprises a filter screen 3-2 located in the air duct 3.

[0034] The filter screen 3-2 is used to filter bacteria. The filter screen of a traditional air shower room only filters dust and the bacteria attached to the dust, and cannot kill bacteria. A large number of bacteria are easily accumulated on the filter screen 3-2, which may cause secondary pollution and affect the purification effect of the air shower room. In the present embodiment, the first plasma generating device 2 in the air duct 3 can not only sterilize and disinfect the air flowing through the air duct, but also kill the bacteria and viruses on the filter screen 3-2 with the positive and negative ions in the airflow, thereby avoiding the secondary pollution caused by the proliferation of a large number of bacteria on the filter screen 3-2.

[0035] In a preferred embodiment, the filter screen 3-2 comprises a primary filter screen 3-2-1 and a high-efficiency filter screen 3-2-2. The primary filter screen 3-2-1 is located at the air inlet of the air duct 3, and the high-efficiency filter screen 3-2-2 is located at the air outlet of the air duct 3.

[0036] In this embodiment, in order to improve the filtering effect, a double-layer filter screen is arranged in the air duct 3. The primary filter screen 3-2-1 is arranged at the air inlet of the air duct 3 to filter some large-particle impurities and prevent the air duct 3 from being blocked. The air passes through the primary filter screen and enters the air duct 3. After being inactivated by the first plasma generating device 2, the air passes through the high-efficiency filter screen 3-2-2 for secondary filtering, and the inactivated impurities such as bacteria are left on the high-efficiency filter screen 3-2-2, and then enter the air shower room 1. The filtering effect of this embodiment is better. At the same time, a large number of positive and negative ions generated by the first plasma generating device 2 diffuse to the high-efficiency filter screen 3-2-2 at the air outlet of the air duct 3 under the action of the airflow, and disinfect the bacteria that have not been killed and remain on the filter screen 3-2 again.

[0037] In a preferred embodiment, the first plasma emitting device 2 and the second plasma emitting device 4 use micro-nano fiber clusters as ion emitters.

[0038] The diameter of the micro-nano fiber is 10 nanometers to 100 microns. The number of micro-nano fibers on each micro-nano conductive fiber cluster 2-3 is 1000-100000, that is, 1000-100000 discharge sharp tips. The ion generation efficiency under the same voltage is much higher than that of a single needle electrode or a DBD flat electrode. A large number of positive and negative ions are generated near the discharge sharp tip of the micro-nano conductive fiber cluster 2-3, and move to the direction of the heterogeneous electrode under the action of the Coulomb force, forming a high-concentration plasma region. This region is the inactivation zone. The bacteria in the air entering this region are quickly eliminated. The sterilization and disinfection effect of the technical solution of this embodiment is better.

[0039] In a preferred embodiment, the first plasma emitting device 2 and the second plasma emitting device 4 both use a high-voltage power supply to work. The high-voltage power supply is in a constant current mode.

[0040] In the constant current mode, the micro-nano fiber cluster discharges. When the concentration of positive and negative ions is sufficient, the voltage at both ends of the emitting device is stable, and harmful byproducts such as ozone, ultraviolet rays, and nitrogen oxides are not generated. No toxic consumables such as chemical reagents are used, and the device can coexist with people. Dynamic disinfection can be performed in the presence of people.

[0041] In a preferred embodiment, a third plasma generating device 5 is further included. The third plasma generating device 5 is arranged at the air outlet of the air duct 3, and the third plasma generating device 5 is arranged at the downwind outlet of the high-efficiency filter screen 3-2-2.

[0042] In the embodiment, since the third plasma generating device 5 is arranged at the air outlet of the air duct 3, when disinfecting and sterilizing, first, air enters the air duct 3 from the air shower room 1 under the action of the fan 3-1, passes through the first plasma generating device 2 in the air duct 3, the first plasma generating device 2 generates a large number of positive and negative ions under the action of electricity, the positive and negative ions form a high-concentration plasma inactivation zone in the air duct 3, the bacteria carried by the air and the bacteria attached to the air dust are exposed to the high-concentration positive and negative ions and the antibacterial groups and are rapidly killed, then the air sterilized and disinfected enters the air shower room 1 again and circulates between the air shower room 1 and the air duct 3, second, the clean air entering the air shower room 1 from the air duct 3 carries the high-concentration positive and negative ions generated by the third plasma generating device 5 into the air shower room 1 to disinfect and sterilize the air in the air shower room 1 and the personnel in the air shower room 1, and the combination of the second plasma generating device 4 and the third plasma generating device 5 has a better purification effect.

[0043] The technical scheme of the present application can solve the technical problem that the air shower room in the prior art does not have a disinfection function or has a poor disinfection effect and cannot be disinfected in the presence of people, and the technical scheme of the present application can realize the technical effect of disinfecting and sterilizing air flow by using the plasma emitting device to generate a large number of positive and negative ions.

[0044] It should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A plasma sterilizing air shower comprising: The application relates to a wind shower room, a first plasma generating device, a second plasma generating device, a third plasma generating device and an air duct; wherein the wind shower room comprises a door, the air duct is installed on the side wall of the wind shower room, a fan is arranged in the air duct, the air duct further comprises a filter screen, the filter screen comprises a primary filter screen and a high-efficiency filter screen; the primary filter screen is located at the air inlet of the air duct, air passes through the primary filter screen and enters the air duct; the first plasma generating device is located in the air duct and forms a first plasma inactivation zone in the air duct; the high-efficiency filter screen is located at the air outlet of the air duct, the air passing through the first plasma generating device is filtered again through the high-efficiency filter screen, and the impurities after inactivation are left on the high-efficiency filter screen; the first plasma generating device is used for disinfecting and killing the bacteria flowing through the air duct and the bacteria left on the high-efficiency filter screen; the second plasma generating device is installed on the top or side of the wind shower room and forms a second plasma inactivation zone in the wind shower room, and is used for disinfecting and killing the bacteria carried by the human body and the surface of objects; The third plasma generating device is located at the lower air outlet of the high-efficiency filter screen, air from the air duct carries the plasma generated by the third plasma generating device into the wind shower room, and the air and personnel in the wind shower room are disinfected and sterilized.

2. The plasma sterilizing water fall room according to claim 1, wherein: The first plasma generating device and the second plasma generating device adopt micro-nano fiber clusters as ion releasers.

3. The plasma sterilizing water fall room according to claim 1, wherein: The first plasma generating device and the second plasma generating device both work by using a high-voltage power supply, and the high-voltage power supply is in a constant current mode.

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