CN111486525A - Plasma sterilization device for hospital exhaust system - Google Patents
Plasma sterilization device for hospital exhaust system Download PDFInfo
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- CN111486525A CN111486525A CN202010402834.0A CN202010402834A CN111486525A CN 111486525 A CN111486525 A CN 111486525A CN 202010402834 A CN202010402834 A CN 202010402834A CN 111486525 A CN111486525 A CN 111486525A
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- air
- exhaust fan
- ultraviolet
- box body
- plasma
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
- F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
- F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H1/00—Generating plasma; Handling plasma
- H05H1/24—Generating plasma
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Human Computer Interaction (AREA)
- Apparatus For Disinfection Or Sterilisation (AREA)
- Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
Abstract
The invention discloses a plasma sterilization device for a hospital exhaust system, which mainly comprises a box body, a control system, an inlet exhaust fan and an outlet exhaust fan; a partition board is arranged in the box body, a plasma generator is arranged on the left side of the partition board, and an ultraviolet UV light source chamber is arranged on the other side of the partition board; both sides of the box body are provided with vent holes which are respectively connected with the inlet and outlet exhaust fans through air inlet and outlet pipes; the gas inlet pipe is provided with a gas flow regulator, and the gas outlet pipe is provided with an alarm; the outer wall of the box body is provided with a control system. The exhaust fan transmits the environmental air containing microorganisms such as bacteria and germs through the filter screen, and sends the environmental air into the low-temperature ultrahigh-pressure plasma generator, so that the microorganisms lose activity under the actions of active groups, high-speed particle breakdown, ultraviolet rays and the like of the plasma, and meanwhile, the conventional ultraviolet disinfection is assisted, and the sterilization quality is further ensured; the invention has the characteristics of simple structure, convenient operation, high safety and good disinfection and sterilization effects.
Description
Technical Field
The invention belongs to the technical field of air purification and plasma sterilization, and particularly provides a plasma sterilization device for a hospital exhaust system.
Background
The disinfection refers to the treatment of killing or removing pathogenic microorganisms on the transmission medium to make the transmission medium harmless. The sterilizer is an instrument capable of killing or eliminating all microorganisms on a propagation medium, including viruses, bacterial spores and non-pathogenic microorganisms, and according to different working principles, an exhaust gas sterilizing device generally has four modes, namely an exhaust gas sterilizing device adopting a BH thermal sterilization technical principle, an exhaust gas sterilizing device adopting a BU ultraviolet sterilization technical principle, an exhaust gas sterilizing device adopting a BO ozone, plasma and high-voltage static sterilization technical principle and an exhaust gas sterilizing device adopting a BC chemical sterilization technical principle.
The plasma is generated by ionizing a gaseous substance under the action of a strong electric field, and mainly comprises electrons, ions, atoms, molecules, active radicals, ray substances and the like. The plasma source has better mobility, the material treatment process is easy to realize automation, the operation is convenient, the efficiency is high, the parameter space of the cold plasma is consistent with the living space parameter of a living body, and the application of the cold plasma in biomedicine and other related fields (such as disinfection and sterilization) is greatly expanded.
Patent application publication No. CN 202032692U's utility model patent discloses a supporting air purification sterilizer that uses of combination formula air treatment unit, including combination formula air treatment unit casing, its structural feature is: an air inlet and a fresh air port are arranged on one side of the combined air treatment unit shell, an air outlet is arranged on the other side of the combined air treatment unit shell, and a polypropylene injection electrostatic layer, a UV light source, a photocatalyst layer, a surface cooler, a heater, a humidifier and a blower are sequentially arranged in the combined air treatment unit shell from the fresh air port to the air outlet. Patent application publication No. CN 210345726U's utility model patent discloses an air purification sterilizer that modular air treatment unit used, including quick-witted case, quick-witted incasement portion is equipped with sterilization mechanism, and its structural feature is: the sterilization mechanism comprises a first partition plate and a second partition plate, a filter chamber is arranged on one side of the first partition plate, a sterilization chamber is arranged on the other side of the first partition plate, a first ultraviolet germicidal lamp is fixedly arranged on the inner wall of the filter chamber, a filter box is arranged inside the filter chamber, and two sliding grooves and the like are formed in the inner wall of the filter box. But when in actual use, as above two utility model can not convenient effectual carry out disinfection to the air in the use, can not monitor displacement and sterilization quality at any time, the sterilization inefficacy does not have the alarm measure, can't ensure carminative security, and the structure is complicated moreover, washs the maintenance difficulty.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a plasma sterilization device for a hospital exhaust system, which has the characteristics of simple structure, safe and convenient operation and good sterilization effect.
In order to achieve the purpose, the plasma sterilization device for the hospital exhaust system mainly comprises a box body, a control system, an inlet exhaust fan and an outlet exhaust fan, wherein a partition plate is arranged in the box body and fixedly and hermetically connected with the inner wall of the box body; one side of the clapboard is provided with a plasma generator; an ultraviolet UV light source chamber is arranged on the other side of the partition plate, and the plasma generator is communicated with the ultraviolet UV light source chamber; an ultraviolet disinfection lamp is arranged in the ultraviolet UV light source chamber; the plasma generator is communicated with the inlet exhaust fan through an air inlet pipe, and the ultraviolet UV light source chamber is communicated with the outlet exhaust fan through an air outlet pipe; the gas inlet pipe is provided with a gas flow regulator; an alarm is arranged on the air outlet pipe; the control system is arranged on the outer wall of the box body and is electrically connected with the box body, the plasma generator, the ultraviolet disinfection lamp, the alarm, the flow regulator, the inlet exhaust fan and the outlet exhaust fan.
The plasma generator comprises a cathode, an anode, a gas jet, an insulating plate and a gas guide port; the negative pole, positive pole are installed on the insulation board oppositely and are the horn mouth form, and the both ends of negative pole, positive pole are connected with jet orifice and air guide port respectively, and the jet orifice is located the less that of horn mouth end, and the air guide port is located the great that of horn mouth end, forms the discharge area between negative pole, the positive pole, and the jet orifice communicates with each other with the intake pipe, and the air guide port communicates with each other with ultraviolet UV light source room. .
The air jet adopts a Laval nozzle structure.
The insulation board is of a hollow structure, the upper surface of the insulation board is provided with a plurality of air outlets, and the air outlets are communicated with the discharging area and the hollow part of the insulation board (35).
The two ends of the ultraviolet disinfection lamp are fixedly connected with the inner wall of the box body, and the number of the ultraviolet disinfection lamp is multiple.
The lower end of the alarm is provided with a core killing condition detection device which is placed in the air outlet pipe.
And filter screens are arranged in the inlet exhaust fan and the outlet exhaust fan.
Compared with the prior art, the invention has the advantages that:
1) the novel atmospheric pressure low-temperature plasma discharge sterilization technology is adopted, the plasma discharge size is large, the stability is good, the energy efficiency is high, the secondary sterilization of the UV light source is assisted, the sterilization effect is further ensured, the safety is high, and the device is simple in structure and convenient to install and maintain.
2) Through setting up air flow regulator at the intake pipe, can monitor at any time and adjust processing gas volume and pressure to reach different environment exhaust sterilization requirements, kill the condition alarm through setting up the core in the gas outlet, prevent that the device from killing the microorganism and becoming invalid, ensure exhaust gas's safety, do not produce secondary pollution.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a plasma sterilization device for a hospital exhaust system according to the present invention;
FIG. 2 is a schematic structural view of the plasma generator of FIG. 1;
fig. 3 is a sectional structure and a gas flow diagram inside of the plasma generator of fig. 1.
The reference numbers in the figures mean: 1. a box body; 2. a control system; 3. a plasma generator; 4. a partition plate; a UV light source chamber; 6. an ultraviolet disinfection lamp; 7. an alarm; 8. an air outlet pipe; 9. an air inlet pipe; 10. a flow regulator; 11. an inlet exhaust fan; 12. an outlet exhaust fan; 31. a cathode; 32. an anode; 33. an air outlet; 34. an air jet; 35. an insulating plate; 36. an air guide port; 71. core killing condition detection device.
Detailed Description
In order to make the technical solutions in the embodiments of the present invention well understood by those skilled in the art, the following will be described in detail with reference to the accompanying drawings in the embodiments of the present invention. It should be apparent that the embodiments described below are only some, but not all, of the embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the invention without inventive step, are within the scope of the invention.
The specific implementation mode is as follows:
as shown in fig. 1, the present embodiment illustrates a plasma sterilization device for a hospital exhaust system, which mainly includes a box body 1, a control system 2, an inlet exhaust fan 11, and an outlet exhaust fan 12, wherein a partition plate 4 is disposed inside the box body 1 and fixedly and hermetically connected to an inner wall of the box body 1; one side of the clapboard 4 is provided with a plasma generator 3; an ultraviolet UV light source chamber 5 is arranged on the other side of the partition plate 4, and the plasma generator 3 is communicated with the ultraviolet UV light source chamber 5; an ultraviolet disinfection lamp 6 is arranged in the ultraviolet UV light source chamber 5; the plasma generator 3 is communicated with an inlet exhaust fan 11 through an air inlet pipe 9, and the ultraviolet UV light source chamber 5 is communicated with an outlet exhaust fan 12 through an air outlet pipe 8; the gas inlet pipe 9 is provided with a gas flow regulator 10 which is used for monitoring the gas flow and pressure to enter the plasma generator in real time and has a regulating function; the alarm 7 is arranged on the air outlet pipe 8, the core killing condition detection device 71 is arranged at the lower end of the alarm 7 and is placed in the air outlet pipe 8, the disinfection and sterilization effects of the sterilization device are monitored in real time, and the failure condition of the core killing condition is alarmed; the control system 2 is arranged on the outer wall of the box body 1, and the control system 2 is electrically connected with the box body 1, the plasma generator 3, the ultraviolet disinfection lamp 6, the alarm 7, the flow regulator 10, the inlet exhaust fan 11 and the outlet exhaust fan 12. The control is realized by a control system.
As shown in fig. 2 and 3, in the actual production, a plasma generator of a structure including a cathode 31, an anode 32, a gas injection port 34, an insulating plate 35 and a gas introduction port 36; the cathode 31 and the anode 32 are oppositely arranged on the insulating plate 35 and are in a bell mouth shape, two ends of the cathode 31 and the anode 32 are respectively connected with the air jet port 34 and the air guide port 36, the air jet port 34 is located at the smaller end of the bell mouth, the air guide port 36 is located at the larger end of the bell mouth, a discharge area is formed between the cathode 31 and the anode 32, the air jet port 34 is communicated with the air inlet pipe 9, and the air guide port 36 is communicated with the ultraviolet UV light source chamber 5.
The gas jet 34 adopts a Laval nozzle structure, so that the gas flow rate of the gas jet is improved, the insulating plate 35 is of a hollow structure, the upper surface of the insulating plate is provided with a plurality of gas outlets 33, and the gas outlets 33 are communicated with the discharge area and the hollow of the insulating plate 35. The gas ejected from the gas ejection port 33 is ejected from all the gas ejection holes 33 through the hollow structure, and sufficiently contacts with the discharge plasma.
The two ends of the ultraviolet disinfection lamp 6 are fixedly connected with the inner wall of the box body 1, and the number of the ultraviolet disinfection lamps is multiple.
The inlet exhaust fan 11 and the outlet exhaust fan 12 are both provided with filter screens inside, which primarily filter large-particle dust in the ambient air and prevent the large-particle dust in the air from entering the device.
The working principle of the invention is as follows:
the plasma sterilization device is arranged in an exhaust system of a hospital, an exhaust pneumatic system feeds environmental air containing microorganisms into a plasma generator through a filter screen of a filter screen inlet exhaust fan 11 at the wind speed of 100 plus 2000 cubic meters per hour through an air inlet pipe 9 and an air nozzle 34, the output end of a constant-current high-frequency high-voltage pulse power supply is connected with two electrode plates of a cathode 31 and an anode 32 for power supply, high-speed air flow is fed in from the air nozzle 34 along the symmetrical axial direction of the two electrodes to provide a medium for generating plasma, air is discharged from an air outlet hole 33 of an insulating plate 35 to impact the plasma in a discharge area on one side surface, the fluidity of the plasma is improved, the discharged air is ensured to be fully contacted with the plasma, then the microorganisms and the plasma in the air enter an ultraviolet UV light source chamber 5 through an air guide port 36, active groups and the active groups of the, Under the action of high-speed particle breakdown, ultraviolet rays and the like, microorganisms in the gas completely lose activity to achieve the aim of disinfection and sterilization, meanwhile, the conventional ultraviolet ray disinfection is assisted to further ensure the sterilization quality, and finally, the treated gas is discharged to the outside through the gas outlet pipe 8 and the outlet exhaust fan 12 to ensure the safety of the gas discharged to the outside.
The device is particularly suitable for efficiently disinfecting and even sterilizing the exhaust of a medical center suction system, and meets the practical requirement of preventing and controlling the epidemic situation of the novel coronavirus.
Claims (7)
1. The utility model provides a plasma sterilization apparatus for hospital exhaust system mainly includes box (1), control system (2), import exhaust fan (11), export exhaust fan (12), its characterized in that:
a partition plate (4) is arranged in the box body (1) and fixedly and hermetically connected with the inner wall of the box body (1); a plasma generator (3) is arranged on one side of the partition plate (4); an ultraviolet UV light source chamber (5) is arranged on the other side of the partition plate (4), and the plasma generator (3) is communicated with the ultraviolet UV light source chamber (5); an ultraviolet disinfection lamp (6) is arranged in the ultraviolet UV light source chamber (5); the plasma generator (3) is communicated with an inlet exhaust fan (11) through an air inlet pipe (9), and the ultraviolet UV light source chamber (5) is communicated with an outlet exhaust fan (12) through an air outlet pipe (8); the air inlet pipe (9) is provided with an air flow regulator (10); an alarm (7) is arranged on the air outlet pipe (8); the control system (2) is arranged on the outer wall of the box body (1), and the control system (2) is electrically connected with the box body (1), the plasma generator (3), the ultraviolet disinfection lamp (6), the alarm (7), the flow regulator (10), the inlet exhaust fan (11) and the outlet exhaust fan (12).
2. The plasma sterilization device for the hospital exhaust system according to claim 1, characterized in that: the plasma generator (3) comprises a cathode (31), an anode (32), a gas nozzle (34), an insulating plate (35) and a gas guide port (36); the cathode (31) and the anode (32) are oppositely arranged on the insulating plate (35) and are in a bell mouth shape, the two ends of the cathode (31) and the anode (32) are respectively connected with the air jet (34) and the air guide port (36), the air jet (34) is located at the smaller end of the bell mouth, the air guide port (36) is located at the larger end of the bell mouth, a discharge area is formed between the cathode (31) and the anode (32), the air jet (34) is communicated with the air inlet pipe (9), and the air guide port (36) is communicated with the ultraviolet UV light source chamber (5).
3. The plasma sterilization device for the hospital exhaust system according to claim 2, characterized in that: the air injection port (34) adopts a Laval nozzle structure.
4. A plasma sterilization device for a hospital exhaust system according to claims 2 and 3, characterized in that: the insulation board (35) is of a hollow structure, the upper surface of the insulation board is provided with a plurality of air outlet holes (33), and the air outlet holes (33) are communicated with the discharge area and the hollow part of the insulation board (35).
5. The plasma sterilization device for the hospital exhaust system according to claim 1, characterized in that: the two ends of the ultraviolet disinfection lamp (6) are fixedly connected with the inner wall of the box body (1), and the number of the ultraviolet disinfection lamp is multiple.
6. The plasma sterilization device for the hospital exhaust system according to claim 1, characterized in that: the lower end of the alarm (7) is provided with a core killing condition detection device (71) which is arranged in the air outlet pipe (8).
7. The plasma sterilization device for the hospital exhaust system according to claim 1, characterized in that: and filter screens are arranged in the inlet exhaust fan (11) and the outlet exhaust fan (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010402834.0A CN111486525A (en) | 2020-05-13 | 2020-05-13 | Plasma sterilization device for hospital exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010402834.0A CN111486525A (en) | 2020-05-13 | 2020-05-13 | Plasma sterilization device for hospital exhaust system |
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| Publication Number | Publication Date |
|---|---|
| CN111486525A true CN111486525A (en) | 2020-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010402834.0A Pending CN111486525A (en) | 2020-05-13 | 2020-05-13 | Plasma sterilization device for hospital exhaust system |
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| CN (1) | CN111486525A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108397A (en) * | 2021-04-02 | 2021-07-13 | 亿茂环境科技股份有限公司 | Pipeline type air pipe sterilizing and virus killing equipment |
| WO2023173475A1 (en) * | 2022-03-16 | 2023-09-21 | 南京苏曼等离子工程研究院有限公司 | Low-temperature plasma-ultraviolet-fused dedicated pathogenic bacteria and coronavirus sterilization technical device |
-
2020
- 2020-05-13 CN CN202010402834.0A patent/CN111486525A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108397A (en) * | 2021-04-02 | 2021-07-13 | 亿茂环境科技股份有限公司 | Pipeline type air pipe sterilizing and virus killing equipment |
| WO2023173475A1 (en) * | 2022-03-16 | 2023-09-21 | 南京苏曼等离子工程研究院有限公司 | Low-temperature plasma-ultraviolet-fused dedicated pathogenic bacteria and coronavirus sterilization technical device |
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