CN112594843A - Method and device for protecting personnel-dense area from harmful bacteria and viruses - Google Patents
Method and device for protecting personnel-dense area from harmful bacteria and viruses Download PDFInfo
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- CN112594843A CN112594843A CN202110023373.0A CN202110023373A CN112594843A CN 112594843 A CN112594843 A CN 112594843A CN 202110023373 A CN202110023373 A CN 202110023373A CN 112594843 A CN112594843 A CN 112594843A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H1/00—Buildings or groups of buildings for dwelling or office purposes; General layout, e.g. modular co-ordination or staggered storeys
- E04H1/12—Small buildings or other erections for limited occupation, erected in the open air or arranged in buildings, e.g. kiosks, waiting shelters for bus stops or for filling stations, roofs for railway platforms, watchmen's huts or dressing cubicles
- E04H1/125—Small buildings, arranged in other buildings
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
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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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Abstract
The invention discloses a method and a device for protecting a personnel-dense area from harmful bacteria and viruses, and belongs to the technical field of germ and virus protection. The protection method is that a single person enters a closed room for the single person to carry out cross infection protection. The protection device comprises a single sealing room, a door, an air inlet and an exhaust pipe are arranged on the sealing room, a negative pressure air suction cavity connected with the exhaust pipe is arranged in the sealing room, a first degerming device is arranged at the air inlet, and a second degerming device is arranged on the exhaust pipe. The invention is provided with the enclosed room for a single person to independently treat the air entering the enclosed room and the air discharged from the enclosed room by the sterilizing device, so that the air entering the enclosed room and the air discharged from the enclosed room are safe, a comfortable and safe environment space can be provided for people in a personnel-dense area, and the cross infection of germs and viruses is prevented. The protection device is reasonable in structure and low in cost, and the protection device and the protection method are suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field of germ and virus protection, in particular to a method and a device for protecting a personnel-dense area from harmful bacteria and viruses.
Background
In the advanced medical field, epidemic viruses and germs still seriously threaten the health of human beings. At present, epidemic viruses, such as influenza virus, new corona virus, etc., are mostly transmitted by oral droplets in patients' coughing, sneezing and speech. People often leisure or work in open dining areas, collective office areas, railway stations, airports, hospitals, shopping malls and other personnel-dense areas. In the dense region, people carrying harmful germs and viruses can carry viruses and germs in the surrounding air under the conditions of speaking loudly, coughing, sneezing and the like, and if aerosol and droplets with the viruses and germs are not processed in time, the problem of cross infection can be caused.
In order to prevent cross infection, people usually wear a mask to protect. The mask has to be removed when people eat and drink in a dense area, so that the mask cannot achieve a protection effect during dining. Particularly, in special places such as dining areas of high-speed trains, although the problem of preventing cross infection can be solved by a closed single dining room after air sterilization treatment by the prior art, the problems of cross infection, wind noise discomfort and the like caused by high-frequency use of different people cannot be solved by the prior art. In the same dining position in a high-speed rail dining area, the next dining position can be used 2-3 seconds after the next dining position is used by the previous person, and if the air is disinfected or sterilized in a filtering mode, the wind noise generated by ventilation in such a short time can not be accepted by diners; if the disinfection spray is adopted to disinfect or sterilize the air, the influence of the disinfectant on the dining environment cannot be eliminated within such a short time; if plasma or ultraviolet light is used to disinfect or sterilize the air, the air cannot be effectively disinfected or sterilized in such a short time. The existing methods for preventing cross-infection by disinfection or sterilization in special places such as the above cannot solve the problem of preventing cross-infection of diners.
In addition, wear gauze mask for a long time and can cause uncomfortable feeling, especially sneeze the droplet that produces can adhere at gauze mask internal surface, bring extremely uncomfortable, and the gauze mask is worn the in-process because tensile, rub the filterable effect of self and influenced, and its performance also can reduce along with the live time extension, is not enough to reach the effect of totally blocking the infection.
In summary, how to create a comfortable safety space to effectively avoid cross infection of viruses and germs in a public dense area is a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to provide a method and a device for protecting a personnel-dense area from harmful bacteria and viruses, which are used for solving the problems in the prior art and providing a comfortable and safe environment space in the personnel-dense area to prevent cross infection of the bacteria and the viruses.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a method for protecting a personnel-dense area from harmful bacteria and viruses, which comprises the following steps: a closed room for a single person to stand alone is arranged; a door, an air inlet and an exhaust pipe are arranged in the closed room, and a negative pressure air suction cavity connected with the exhaust pipe is arranged in the closed room; the negative pressure air suction cavity is arranged near the mouth and the nose of a person to prevent the spray and the aerosol from escaping to the outside of the negative pressure air suction cavity and quickly collect the spray and the aerosol generated by the person; the air inlet is provided with a first sterilizing device for filtering or killing viruses and harmful bacteria contained in the sucked air, and the exhaust pipe is provided with a second sterilizing device for filtering or killing the viruses and the harmful bacteria contained in the exhausted air.
Meanwhile, the invention provides a protection device for a personnel dense area against harmful bacteria and viruses based on the protection method, which comprises a single-person independent closed room, wherein a door, an air inlet and an exhaust pipe are arranged on the closed room, a negative pressure air suction cavity connected with the exhaust pipe is arranged in the closed room, and the negative pressure air suction cavity is arranged near the mouth and nose of a person; the air inlet is provided with a first sterilizing device for eliminating viruses and harmful bacteria contained in the sucked air, and the exhaust pipe is provided with a second sterilizing device for eliminating the viruses and the harmful bacteria contained in the exhausted air.
Optionally, the first sterilization device and the second sterilization device are filter devices for eliminating harmful bacteria and viruses by filtering, high-temperature sterilization devices for killing harmful bacteria and viruses by high temperature, or plasma sterilization devices for killing harmful bacteria and viruses by plasma.
Optionally, the negative pressure inhalation cavity is located in front of the mouth and nose of the person.
Optionally, the negative pressure suction cavity is a gas buffer cavity, and the gas buffer cavity is used for accommodating droplets and/or aerosol and preventing the droplets and/or aerosol from escaping to the outside of the gas buffer cavity; and one end of the gas buffer chamber is provided with a gas suction port, the other end of the gas buffer chamber is provided with a gas exhaust port, the gas exhaust port is connected with the exhaust pipe, and a negative pressure power source for providing negative pressure airflow is arranged on the exhaust pipe. The negative pressure power source is an exhaust pipe and the gas buffer chamber which are used together, so that the flow of the air flow is always the same when the air flow flows through the air suction port, the fluid buffer section in the gas buffer chamber and the exhaust port, and the difference of the fluid sectional areas directly causes the difference of the flow speed of the air flow when the air flow flows through the air suction port, the gas buffer chamber and the exhaust port, namely the flow speed of the fluid at the air suction port is smaller than that at the exhaust port but larger than that in the gas buffer chamber, and the flow speed of the fluid in the gas buffer chamber is relatively minimum, so that the flow speed of the air flow is buffered after entering the gas buffer chamber, reducing the wind sensation in the enclosed room. The outer edge of the fluid buffer section is a closed annular edge, each point of the closed annular edge is positioned on the inner cavity wall of the gas buffer cavity, the fluid buffer section is positioned between the air suction port and the air exhaust port, and the fluid buffer section can be a section with any area in the gas buffer cavity; the fluid buffer section can be a vertical cross section of the gas buffer chamber, and an included angle can also exist between the fluid buffer section and the axis of the gas buffer chamber; similarly, the cross section of the air suction port, the cross section of the air exhaust port and the fluid buffering cross section may or may not be completely parallel. People need to aim at or be close to the entry of gaseous buffer chamber as far as possible when sneezing, coughing or speaking in the closed room, and the droplet and the aerosol that personnel produced just so can be accomodate in the cavity of negative pressure suction chamber, and the bacterium or the virus of smuggleing secretly in droplet and aerosol adsorbs the cavity inner wall, realizes the isolation between personnel and the safe living area in the closed room and the disease in the cavity, regularly to the disinfection in the gaseous buffer chamber can. When a person uses the negative pressure power source in the closed room, the negative pressure power source is generally kept in an open state, so that droplets and aerosol can more easily enter the gas buffer chamber under the action of negative pressure, and the isolation efficiency and the isolation effect of germs and the person are improved.
Optionally, the air suction port and the air exhaust port may be respectively provided with one or more than one; when the air suction port and the air exhaust port are respectively provided with one air suction port, in order to realize the buffering effect, the caliber of the air suction port can be set to be larger than that of the air exhaust port and smaller than the inner diameter of the cavity at the fluid buffering section, so that the area of the air suction port is larger than that of the air exhaust port and smaller than the sectional area of the fluid buffering section, and the relation among the air suction port, the air buffering cavity and the fluid sectional area at the air exhaust port is further met; similarly, when the air inlet and the air outlet are respectively provided with more than two air inlets and more than two air outlets, the following relations can be satisfied to realize the buffering effect no matter what the shapes and the distribution modes of the air inlets are: the sum of the areas of the air suction ports is larger than the sum of the areas of the air exhaust ports, and the sum of the areas of the air suction ports is smaller than the sectional area of the fluid buffer section.
Optionally, in order to improve the structural compactness of the device, the negative pressure fan can be arranged on the top of the closed room.
Optionally, the negative pressure suction cavity is detachably connected with the exhaust pipe, so that the negative pressure suction cavity can be conveniently and regularly detached, cleaned and disinfected.
Optionally, the blast pipe can select the square hard pipe for use, adopts flexible hose to inhale the negative pressure chamber and is connected with the blast pipe, can utilize the flexibility of soft pipe to inhale the height position and the every single move gesture in chamber to the negative pressure and adjust at will, satisfies multiple user demand.
Optionally, an air purification device, an ultraviolet disinfection lamp and/or an oxygen generation device are arranged in the closed room; the air purification device is used for purifying the air environment in the closed room; the ultraviolet disinfection lamp is used for sterilizing and disinfecting the closed room when the closed room is empty so as to facilitate the normal use of the next person; the oxygen generating equipment is used for improving the breathing environment in the closed room.
Optionally, the bottom of the closed room is provided with a plurality of lifting universal wheels, when the wheels need to be moved, the wheels are put down, and when the closed room is normally used, the wheels are folded.
Optionally, the negative pressure power source is a negative pressure fan, the negative pressure fan is provided with an on-off switch and/or a speed regulation switch, and the on-off switch and/or the speed regulation switch are/is arranged in the closed room, so that the operation and the regulation of personnel in the closed room are facilitated.
Optionally, the gas buffer chamber is a trapezoid-shaped chamber cover body or a circular truncated cone-shaped chamber cover body, the suction port is arranged at a large head end of the trapezoid-shaped chamber cover body or the circular truncated cone-shaped chamber cover body, and the exhaust port is arranged at a small head end of the trapezoid-shaped chamber cover body or the circular truncated cone-shaped chamber cover body.
Compared with the prior art, the invention has the following technical effects:
according to the method and the device for protecting the personnel-intensive area from harmful bacteria and viruses, the enclosed room is arranged for a single person to stand alone, and the air entering the enclosed room and the air discharged from the enclosed room are treated by the sterilizing device, so that the air entering the enclosed room and the air discharged from the enclosed room are safe air, a comfortable and safe environment space can be provided for people in the personnel-intensive area, and the cross infection of germs and viruses is prevented. The protective device is reasonable in structure, low in cost and suitable for popularization and use.
The invention has the following specific beneficial effects:
the invention solves the contradiction between the large number of people and the limited area of the place and also solves the problem of the reliability of the isolation protection of people by placing the people in a narrow closed space which only contains 1 person.
The negative pressure air suction cavity is arranged in the closed room and is positioned near the mouth and the nose, people in the closed room can cough and sneeze in the negative pressure air suction cavity, aerosol and spray generated by people in the closed room are in the negative pressure air suction cavity under the condition, and strong airflow carrying the spray and the aerosol generated by the cough and the sneeze is buffered in the negative pressure air suction cavity and is quickly sucked away by the exhaust pipe under the action of the negative pressure airflow, so that the spray and the aerosol generated by the cough, the sneeze and the like are prevented from spreading to the periphery. The air flow speed of the droplets and the aerosol generated under the conditions of normal breathing, speaking and the like of a person is not as fast as that of coughing and sneezing, the mouth and the nose of the person can be positioned outside the negative pressure inhalation cavity and at a position close to an inhalation port of the negative pressure inhalation cavity, and the droplets and the aerosol generated by the mouth and the nose of the person can be quickly inhaled into the negative pressure inhalation cavity by the negative pressure air flow. Therefore, no matter strong expiratory airflow or weak expiratory airflow generated by normal speaking and breathing during coughing and sneezing, the negative pressure inhalation cavity can enable the aerosol and the droplets generated by the person to be quickly inhaled and discharged out of the closed room, so that the aerosol and the droplets are prevented from staying in the closed room, the aerosol and the droplets generated by the person cannot remain in the closed room after the person leaves the closed room after using the closed room, and the next person can continuously and safely use the closed room.
And thirdly, the ultraviolet disinfection lamp provided by the invention can be started for disinfection when the closed room is empty or after a person leaves, so as to ensure the normal use of the next person. Meanwhile, the air purification device is arranged in the closed room, so that the air can be purified, the volume of the closed room which is single for a single person is generally only 2 cubes, the air can achieve a clean and sanitary air environment in the closed room after being purified for 2-3 minutes, the closed room is not influenced by the outside, and the clean and sanitary air environment can be maintained. The existing air purifier needs to purify the air in the whole room, so that the time consumption is long, the energy consumption is high, and the clean and sanitary air environment is difficult to maintain because the space of the whole room is larger than that of a single person in the invention.
And (IV) the negative pressure air suction cavity has the air suction port caliber larger than the air exhaust port caliber, the cavity inner diameter at the fluid buffer section is larger than the air suction port caliber, the whole body is in a cone structure, and negative pressure airflow is formed in the air buffer cavity through the negative pressure fan to suck air. After the air suction port with the large caliber amplifies the air flow, the air flow is buffered and revolved in the air buffer chamber, so that the air flow speed is greatly reduced, no obvious wind sense exists in the closed room, and personnel in the closed room are more comfortable. In addition, the respiratory airflows generated by sneezing, violent coughing, general breath easing and the like of the human body can be all caught or adsorbed by the negative pressure inhalation cavity through the double functions of negative pressure and buffering. In a narrow closed environment, the airflow cannot be too strong, and the negative pressure inhalation cavity is arranged near the mouth and the nose under the condition of weak airflow, so that the respiratory airflow is prevented from escaping from the negative pressure inhalation cavity. In the traditional technology, the method for improving the effect of collecting the airflow carrying harmful germs and viruses is to increase the power of a fan to improve the flow and the flow speed of negative pressure airflow, but the method or the device in a narrow single-person closed room is very difficult to accept. Compared with the prior art, the invention can enable personnel in the closed room to be in a natural breeze state, can also rapidly suck aerosol and spray generated by the personnel in various breathing states, and can give people a comfortable feeling, thereby being widely popularized and used in personnel dense areas.
In the enclosed room which is independent for a single person, the mask is not needed to be worn by the person, the air circulation in the enclosed room is smooth, the oxygen generation equipment can be opened as required, the breathing environment in the enclosed room is improved, the problem that the mask is easy to cause discomfort when being worn for a long time is solved, the problem that the existing method cannot protect people when eating and drinking water is particularly solved, and meanwhile, the breathing comfort is improved.
The invention is provided with an air inlet and an exhaust pipe to exchange and flow the air in the closed room and the air outside the closed room. Compared with an air conditioner, an air purifier and the like which adopt 'internal and internal air circulation', external fresh air enters the closed room at any time, so that the comfort of people in the closed room can be improved, and people can not feel uncomfortable even when boiling water, scalding hot pot, boiling tea and the like in the closed room.
The invention utilizes the closed room to isolate the outside air, avoids the airflow disorder in the closed room caused by the outside airflow, and solves the problem that the outside airflow influences the droplets and aerosol generated by the collection personnel in the negative pressure air suction cavity.
The invention (eighthly) can not only ensure that people can obtain reliable protection effect for preventing cross infection, but also obtain comfortable use experience, is suitable for intensive popularization and use by personnel in offices, meeting rooms, restaurants and the like, can well solve the problem of cross infection in personnel-dense areas, and has good application prospect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a schematic view showing the overall structure of a device for protecting a person-dense area from harmful bacteria and viruses according to the present invention;
FIG. 2 is a schematic view showing the internal structure of the device for protecting a person-dense area from harmful bacteria and viruses according to the present invention;
FIG. 3 is a schematic diagram of a cavity structure of a negative pressure air suction cavity in the protection device for harmful bacteria and viruses in a personnel dense area;
wherein the reference numerals are: 100. a protection device for a personnel-intensive area against harmful bacteria and viruses; 1. sealing the chamber; 2. a door; 3. an air inlet; 4. an exhaust pipe; 5. a negative pressure suction cavity; 51. a gas buffer chamber; 52. an air suction port; 53. an exhaust port; 6. a first sterilizing device; 7. a second sterilizing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method and a device for protecting a personnel-dense area from harmful bacteria and viruses, which are used for solving the problems in the prior art and providing a comfortable and safe environment space for people in the personnel-dense area to prevent cross infection of the bacteria and the viruses.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
Example one
The embodiment provides a method for protecting a personnel-dense area from harmful bacteria and viruses, which comprises the following steps: a closed room 1 for a single person to stand alone is arranged; a door 2, an air inlet 3 and an exhaust pipe 4 are arranged in the closed room, and a negative pressure air suction cavity 5 connected with the exhaust pipe 4 is arranged in the closed room 1; the negative pressure air suction cavity 5 is arranged near the mouth and the nose of a person to prevent the spray and the aerosol from escaping to the outside of the negative pressure air suction cavity and quickly collect the spray and the aerosol generated by the person; the air inlet is provided with a first sterilizing device 6 for filtering or sterilizing viruses and harmful bacteria contained in the sucked air, and the exhaust pipe is provided with a second sterilizing device 7 for filtering or sterilizing viruses and harmful bacteria contained in the exhausted air. In actual operation, one person or 2-3 persons with mutual confidence in health condition can form a protection unit person, and then a closed room is set to protect the protection unit person. When a person sneezes, coughs or speaks in the closed room, the person needs to be aligned with or be close to the air suction port of the negative pressure air suction cavity as much as possible, droplets and aerosol generated by the person are contained in the cavity of the negative pressure air suction cavity, and bacteria or viruses carried in the droplets and the aerosol can be attached to the inner wall of the cavity of the negative pressure air suction cavity after 1-2 seconds without the influence of air flow. The method for protecting the harmful bacteria and the viruses ensures that the living space of the personnel and the polluted space are always kept in a separated state, and the safe and sanitary living space can be established even if the use interval time is short and the replacement of the personnel is frequent, so that the method is particularly suitable for being used in special protection places, such as dining areas of high-speed trains. The air inlet, the exhaust pipe, the negative pressure air flow and the second degerming device are arranged to prevent the droplets and the aerosol from escaping to the outside of the negative pressure air suction cavity, so that the protection effect of the protection method is improved and enhanced.
As shown in fig. 1-3, the present embodiment provides a protection device 100 for harmful bacteria and viruses in a dense area based on the above protection method, comprising a single enclosure 1, wherein the enclosure 1 is provided with a door 2, an air inlet 3 and an exhaust pipe 4, the enclosure 1 is provided with a negative pressure air suction cavity 5 connected with the exhaust pipe 4, and the negative pressure air suction cavity 5 is arranged near the mouth and nose of a person; the air inlet 3 is provided with a first sterilizing device 6 for sterilizing viruses and harmful bacteria contained in the sucked air, and the exhaust pipe 4 is provided with a second sterilizing device 7 for sterilizing viruses and harmful bacteria contained in the exhausted air. The door 2, the air inlet 3, the exhaust pipe 4 and the joints of the pipelines of the closed room 1 are provided with corresponding sealing structures, such as a sealing strip added at the door of the closed room, a check valve added at the exhaust pipe and the like, so as to ensure the sealing performance of the protection device and effectively isolate the protection device from the outside.
In this embodiment, the enclosure 1 is preferably configured as a transparent glass structure, so that a single person can see a wide, bright and non-oppressive view in the enclosure. And a blind, a curtain, etc. are provided inside and opened when necessary to improve the privacy of the closed room 1. The enclosed room 1 can be simply provided with living goods such as tables, chairs, power supplies and the like.
In the embodiment, the first sterilization device 6 and the second sterilization device 7 may be any one of a conventional filter device for removing harmful bacteria and viruses by filtration, a high temperature sterilization device for killing harmful bacteria and viruses by high temperature, or a plasma sterilization device for killing harmful bacteria and viruses by plasma.
In this embodiment, the negative pressure air suction cavity 5 is preferably disposed in front of the mouth and nose of a person, and the air flow in the negative pressure air suction cavity is not affected by the air flow outside the closed room, so that the droplets and aerosols generated by the person can be sucked away more quickly and thoroughly. Wherein, the negative pressure suction cavity 5 can be set into a structure capable of being adjusted in a lifting way according to requirements so as to be suitable for people with different heights.
In the present embodiment, the negative pressure suction chamber 5 includes a gas buffer chamber 51, and a negative pressure fan (not shown) is installed on the exhaust pipe 4; one end of the gas buffer chamber 51 is provided with a gas inlet 52, the other end is provided with a gas outlet 53, the gas outlet 53 is connected with the gas exhaust pipe 4, the embodiment limits that the fluid sectional area at the gas inlet 52 is smaller than the fluid sectional area of the fluid buffer section in the gas buffer chamber 51 and is larger than the fluid sectional area at the gas outlet 53, because the negative pressure power source is commonly used by the gas exhaust pipe 4 and the gas buffer chamber 51, the flow rate of the gas flow flowing through the gas inlet 52, the gas buffer chamber 51 and the gas outlet 53 can be defaulted to be the same, the flow rate of the gas flow flowing through the gas inlet 52, the gas buffer chamber 51 and the gas outlet 53 can be directly caused to be different according to the difference of the fluid sectional areas, namely the fluid flow rate at the gas inlet 52 is larger than the fluid flow rate in the gas buffer chamber 51 and is smaller than the fluid, reducing the wind sensation in the enclosure 1. The gas buffer chamber 51 may be a trapezoid-shaped chamber cover body, a circular truncated cone-shaped chamber cover body or other structures, the suction port 52 is disposed at a large end of the trapezoid-shaped chamber cover body or the circular truncated cone-shaped chamber cover body, and the exhaust port 53 is disposed at a small end of the trapezoid-shaped chamber cover body or the circular truncated cone-shaped chamber cover body. As shown in fig. 3, in the present embodiment, the gas buffer chamber 51 is preferably a trapezoidal chamber cover body, and is an axisymmetric structure, and the negative pressure fan causes the gas flow to form a negative pressure gas flow in the gas buffer chamber 51, so as to suck the gas; the air suction port 52 and the air exhaust port 53 are both provided with a square air port, the fluid buffering section is also a square section, the centers of the fluid buffering section, the air suction port 52 and the air exhaust port 53 are all arranged on the central axis of the trapezoidal cavity cover body, the fluid buffer section, the air inlet 52 and the air outlet 53 are all perpendicular to the central axis of the trapezoidal cavity cover body, the caliber of the air inlet 52 (namely the side length of the square air inlet) is set to be larger than the caliber of the air outlet 53 (namely the side length of the square air outlet), the fluid buffer section is positioned between the air inlet 52 and the air outlet 53, therefore, after the air flow rate is amplified by the large-diameter air inlet 52, the air flow is buffered and swirled in the air buffer chamber 51, the air flow enters the closed room after the flow velocity of the air flow is greatly reduced, so that no obvious wind sense exists in the closed room, namely a breeze sense, and people in the closed room feel more comfortable. Through the double functions of negative pressure and buffering, respiratory airflows generated by sneezing, violent coughing, general breath alleviation and the like of a human body can be contained or adsorbed by the negative pressure inspiration cavity. In a narrow closed environment, the airflow cannot be too strong, and the negative pressure inhalation cavity is arranged near the mouth and the nose under the condition of weak airflow, so that the respiratory airflow is prevented from escaping from the negative pressure inhalation cavity. The negative pressure air suction cavity 5 has the following functions: the air flow buffer device buffers and collects strong air flow generated by people coughing and sneezing, and simultaneously contains bacteria, viruses and the like in the air flow generated by people coughing and sneezing.
In this embodiment, the exhaust port of the negative pressure suction cavity 5 is preferably detachably connected to the exhaust pipe 4 through a flexible hose, so that the negative pressure suction cavity can be conveniently and periodically detached, cleaned and sterilized. The exhaust pipe 4 can select the square hard pipe, adopts the flexible hose to inhale the negative pressure chamber and is connected with the exhaust pipe, can utilize the flexibility of soft pipe to inhale the height position and the every single move gesture in chamber to the negative pressure and adjust at will, satisfies multiple user demand.
In this embodiment, an air purification device and an ultraviolet disinfection lamp can be installed in the enclosure 1 according to the requirement. The air purification device can adopt the existing filtering sterilization device and is used for purifying the air environment in the closed room; the volume of the single sealed room 1 is only 2 cubes, clean and sanitary air environment can be achieved in the sealed room after the air is purified for 2-3 minutes, the sealed room is free from external influence, and the clean and sanitary air environment can be kept. The ultraviolet disinfection lamp can be provided with a plurality of, can install at inner wall or roof for when the enclosure is vacant to the enclosure disinfection of disinfecting to next person normal use. The ultraviolet disinfection lamp can be set into an automatic starting mode through the prior art, and can be automatically started after people leave the closed room 1, and can be automatically closed after being disinfected for a period of time.
In this embodiment, can set up the oxygen making equipment according to the demand in the enclosure 1, for example an existing miniature oxygenerator, the volume of enclosure 1 is generally about two cubes, and miniature oxygenerator is enough to satisfy the oxygen demand in this space, need not to use the oxygen mask in the enclosure just can realize the effective use of oxygen. After sealing room 1 and using a period, the user can open the oxygen making equipment as required to improve the respiratory environment in sealing room 1, improve the breathing comfort level. In addition, when oxygen making equipment starts, can close negative-pressure air fan according to the demand, after reaching the improvement demand until sealing 1 internal environment, close oxygen making equipment, continue to open negative-pressure air fan simultaneously.
In this embodiment, the bottom of the enclosure 1 is provided with a plurality of lifting universal wheels, and when the wheels need to be moved, the wheels are put down to be moved. When the protective device is normally used in a closed room, the wheels are folded, the protective device is convenient and practical, and the universal wheels improve the use flexibility of the protective device. The four lifting universal wheels are preferably arranged and distributed at four corners of the closed room 1.
In this embodiment, the negative pressure fan can be further configured with an on-off switch and a speed regulation switch, and the on-off switch and the speed regulation switch are arranged in the enclosed room 1, so that the operation and the regulation of personnel in the enclosed room are facilitated.
Therefore, according to the protection method and the protection device for the personnel dense area to the harmful bacteria and the viruses, the enclosure room for a single person to stand alone is arranged, and the air entering the enclosure room and the air discharged from the enclosure room are processed by the sterilization device, so that the air entering the enclosure room and the air discharged from the enclosure room are safe air, a comfortable and safe environment space can be provided for people in the personnel dense area, and the cross infection of the pathogenic bacteria and the viruses is prevented. The protective device is reasonable in structure, low in cost and suitable for popularization and use.
The embodiment has the following specific beneficial effects:
the invention solves the contradiction between the large number of people and the limited area of the place and also solves the problem of the reliability of the isolation protection of people by placing the people in a narrow closed space which only contains 1 person.
The negative pressure air suction cavity is arranged in the closed room and is positioned near the mouth and the nose, people in the closed room can directly cough and sneeze in the negative pressure air suction cavity, aerosol and spray generated by the people in the closed room are in the negative pressure air suction cavity under the condition, and strong airflow carrying the spray and the aerosol generated by the cough and the sneeze is buffered in the negative pressure air suction cavity and is quickly sucked away by the exhaust pipe under the action of the negative pressure airflow, so that the spray and the aerosol generated by the cough, the sneeze and the like are prevented from being diffused to the periphery. The air flow speed of the droplets and the aerosol generated under the conditions of normal breathing, speaking and the like of a person is not as fast as that of coughing and sneezing, the mouth and the nose of the person can be positioned outside the negative pressure inhalation cavity and at a position close to an inhalation port of the negative pressure inhalation cavity, and the droplets and the aerosol generated by the mouth and the nose of the person can be quickly inhaled into the negative pressure inhalation cavity by the negative pressure air flow. Therefore, no matter strong expiratory airflow or weak expiratory airflow generated by normal speaking and breathing during coughing and sneezing, the negative pressure inhalation cavity can enable the aerosol and the droplets generated by the person to be quickly inhaled and discharged out of the closed room, so that the aerosol and the droplets are prevented from staying in the closed room, the aerosol and the droplets generated by the person cannot remain in the closed room after the person leaves the closed room after using the closed room, and the next person can continuously and safely use the closed room.
And thirdly, the ultraviolet disinfection lamp provided by the invention can be started for disinfection when the closed room is empty or after a person leaves, so as to ensure the normal use of the next person. Meanwhile, the air purification device is arranged in the closed room, so that the air can be purified, the volume of the closed room which is single for a single person is generally only 2 cubes, the air can achieve a clean and sanitary air environment in the closed room after being purified for 2-3 minutes, the closed room is not influenced by the outside, and the clean and sanitary air environment can be maintained. The existing air purifier needs to purify the air in the whole room, so that the time consumption is long, the energy consumption is high, and the clean and sanitary air environment is difficult to maintain because the space of the whole room is larger than that of a single room.
And (IV) the negative pressure air suction cavity has the air suction port caliber larger than the air exhaust port caliber, the cavity inner diameter at the fluid buffer section is larger than the air suction port caliber, the whole body is in a cone structure, and negative pressure airflow is formed in the air buffer cavity through the negative pressure fan to suck air. After the air suction port with the large caliber amplifies the air flow, the air flow is buffered and revolved in the air buffer chamber, so that the air flow speed is greatly reduced, no obvious wind sense exists in the closed room, and personnel in the closed room are more comfortable. In addition, the respiratory airflows generated by sneezing, violent coughing, general breath easing and the like of the human body can be all caught or adsorbed by the negative pressure inhalation cavity through the double functions of negative pressure and buffering. In a narrow closed environment, the airflow cannot be too strong, and the negative pressure inhalation cavity is arranged near the mouth and the nose under the condition of weak airflow, so that the respiratory airflow is prevented from escaping from the negative pressure inhalation cavity. In the traditional technology, the method for improving the effect of collecting the airflow carrying harmful germs and viruses is to increase the power of a fan to improve the flow and the flow speed of negative pressure airflow, but the method or the device in a narrow single-person closed room is very difficult to accept. Compared with the prior art, the invention can enable personnel in the closed room to quickly absorb aerosol and spray generated by the personnel in various breathing states under the natural breeze state, and can give people a comfortable feeling.
In the enclosed room which is independent for a single person, the mask is not needed to be worn by the person, the air circulation in the enclosed room is smooth, the oxygen generation equipment can be opened as required, the breathing environment in the enclosed room is improved, the problem that the mask is easy to cause discomfort when being worn for a long time is solved, the problem that the existing method cannot protect people when eating and drinking water is particularly solved, and meanwhile, the breathing comfort is improved.
The invention is provided with an air inlet and an exhaust pipe to exchange and flow the air in the closed room and the air outside the closed room. Compared with an air conditioner, an air purifier and the like which adopt 'internal and internal air circulation', external fresh air enters the closed room at any time, and the comfort of the experience of people in the closed room can be improved.
The invention utilizes the closed room to isolate the outside air, avoids the airflow disorder in the closed room caused by the outside airflow, and solves the problem that the outside airflow influences the droplets and aerosol generated by the collection personnel in the negative pressure air suction cavity.
The invention (eighthly) can not only ensure that people can obtain reliable protection effect for preventing cross infection, but also obtain comfortable use experience, is suitable for intensive popularization and use by personnel in offices, meeting rooms, restaurants and the like, can well solve the problem of cross infection in personnel-dense areas, and has good application prospect.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (11)
1. A method for protecting a personnel-dense area from harmful bacteria and viruses is characterized by comprising the following steps: a closed room for a single person to stand alone is arranged; a door, an air inlet and an exhaust pipe are arranged in the closed room, and a negative pressure air suction cavity connected with the exhaust pipe is arranged in the closed room; the negative pressure air suction cavity is arranged near the mouth and the nose of a person to prevent the spray and the aerosol from escaping to the outside of the negative pressure air suction cavity and quickly collect the spray and the aerosol generated by the person; the air inlet is provided with a first sterilizing device for filtering or killing viruses and harmful bacteria contained in the sucked air, and the exhaust pipe is provided with a second sterilizing device for filtering or killing the viruses and the harmful bacteria contained in the exhausted air.
2. A protection device for a personnel-dense area against harmful bacteria and viruses based on the protection method of claim 1, characterized in that: the air conditioner comprises a single-person independent closed room, wherein a door, an air inlet and an exhaust pipe are arranged on the closed room, a negative pressure air suction cavity connected with the exhaust pipe is arranged in the closed room, and the negative pressure air suction cavity is arranged near the mouth and the nose of a person; the air inlet is provided with a first sterilizing device for eliminating viruses and harmful bacteria contained in the sucked air, and the exhaust pipe is provided with a second sterilizing device for eliminating the viruses and the harmful bacteria contained in the exhausted air.
3. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: the first sterilizing device and the second sterilizing device are filter devices for eliminating harmful bacteria and viruses through a filtering mode, high-temperature sterilizing devices for killing the harmful bacteria and the viruses through high temperature or plasma sterilizing devices for killing the harmful bacteria and the viruses through plasma.
4. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: the negative pressure air suction cavity is positioned in front of the mouth and the nose of the person.
5. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: the negative pressure air suction cavity is a gas buffer cavity, and the gas buffer cavity is used for accommodating droplets and/or aerosol and preventing the droplets and/or the aerosol from escaping to the outside of the gas buffer cavity; one end of the gas buffer chamber is provided with a gas suction port, the other end of the gas buffer chamber is provided with a gas exhaust port, the gas exhaust port is connected with the exhaust pipe, and a negative pressure power source for generating negative pressure airflow is arranged on the exhaust pipe; the air buffer chamber is internally provided with a fluid buffer section, the fluid sectional area passing through the air suction port is smaller than the fluid sectional area passing through the fluid buffer section, and the fluid sectional area passing through the air suction port is larger than the fluid sectional area passing through the air exhaust port, so that air flow buffering is realized, and the wind sensation in the closed room is reduced.
6. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: the negative pressure air suction cavity is detachably connected with the exhaust pipe.
7. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: the negative pressure air suction cavity is detachably connected with the exhaust pipe through a flexible hose.
8. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: an air purification device, an ultraviolet disinfection lamp and/or an oxygen generation device are arranged in the closed room; the air purification device is used for purifying the air environment in the closed room; the ultraviolet disinfection lamp is used for sterilizing and disinfecting the closed room when the closed room is empty; the oxygen generating equipment is used for improving the breathing environment in the closed room.
9. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 2, characterized in that: and a plurality of lifting universal wheels are arranged at the bottom of the closed room.
10. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 5, characterized in that: the negative pressure power source is a negative pressure fan; the negative pressure fan is provided with an on-off switch and/or a speed regulation switch, and the on-off switch and/or the speed regulation switch are arranged in the closed room.
11. The protection device for personnel-dense areas against harmful bacteria and viruses according to claim 5, characterized in that: the gas buffer chamber is a trapezoid-shaped chamber cover body or a round-table-shaped chamber cover body, the air suction port is arranged at the large head end of the trapezoid-shaped chamber cover body or the round-table-shaped chamber cover body, and the air exhaust port is arranged at the small head end of the trapezoid-shaped chamber cover body or the round-table-shaped chamber cover body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2021/075670 WO2021179868A1 (en) | 2020-03-10 | 2021-02-06 | Protection device and device against harmful bacteria and viruses in densely populated area |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020101634391 | 2020-03-10 | ||
| CN202010163439.1A CN111237915A (en) | 2020-03-10 | 2020-03-10 | Method and device for protecting personnel-dense area from harmful bacteria and viruses |
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| CN112594843A true CN112594843A (en) | 2021-04-02 |
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| CN202010163439.1A Pending CN111237915A (en) | 2020-03-10 | 2020-03-10 | Method and device for protecting personnel-dense area from harmful bacteria and viruses |
| CN202110023373.0A Pending CN112594843A (en) | 2020-03-10 | 2021-01-08 | Method and device for protecting personnel-dense area from harmful bacteria and viruses |
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| CN202010163439.1A Pending CN111237915A (en) | 2020-03-10 | 2020-03-10 | Method and device for protecting personnel-dense area from harmful bacteria and viruses |
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| CN (2) | CN111237915A (en) |
| WO (2) | WO2021179405A1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111237915A (en) * | 2020-03-10 | 2020-06-05 | 重庆陈氏清洁服务有限公司 | Method and device for protecting personnel-dense area from harmful bacteria and viruses |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2021179405A1 (en) | 2021-09-16 |
| WO2021179868A1 (en) | 2021-09-16 |
| CN111237915A (en) | 2020-06-05 |
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