WO2019227830A1 - Air curtain system and protective isolation device - Google Patents

Air curtain system and protective isolation device Download PDF

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Publication number
WO2019227830A1
WO2019227830A1 PCT/CN2018/111294 CN2018111294W WO2019227830A1 WO 2019227830 A1 WO2019227830 A1 WO 2019227830A1 CN 2018111294 W CN2018111294 W CN 2018111294W WO 2019227830 A1 WO2019227830 A1 WO 2019227830A1
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WO
WIPO (PCT)
Prior art keywords
air
module
air outlet
storage box
fan
Prior art date
Application number
PCT/CN2018/111294
Other languages
French (fr)
Chinese (zh)
Inventor
周荣
钟南山
何师聪
杨昆
韩才旭
Original Assignee
广州安捷生物安全科技股份有限公司
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Publication of WO2019227830A1 publication Critical patent/WO2019227830A1/en

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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
    • F24F9/00—Use of air currents for screening, e.g. air curtains
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/082—Grilles, registers or guards
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • 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
    • 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
    • F24F8/15—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 chemical means
    • F24F8/158—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 chemical means using active carbon
    • 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
    • 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
    • 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

Definitions

  • the invention relates to the technical field of medical equipment, in particular to an air curtain system and an isolation protection device.
  • isolation protection device with an isolation function, which can blow out a wind curtain that cuts off the path of the respiratory airflow between people, so as to reduce the chance of germ transmission or cross infection.
  • the airflow path of this type of isolation and protection device is too simple, and the wind blown out by the fan is directly drawn as a wind curtain, so problems such as uneven wind are easy to occur, which leads to poor partitioning effect, and there is still a risk of germ transmission and cross infection. .
  • the present invention provides an air curtain system and an isolation protection device.
  • the air curtain system and the isolation protection device can suck air carrying germs and perform disinfection and sterilization treatment, and at the same time continuously and uniformly blow out a sufficient pressure air curtain To ensure that the path of respiratory air flow between people is completely blocked to completely eliminate the risk of germ transmission and cross infection.
  • the present invention provides an air curtain system including an air suction module, a fan module, a kill filter module, an air outlet module, and an air storage box.
  • the inlet of the fan module is in communication with the air suction module.
  • the outlet of the fan module is in communication with the air outlet module, the air storage box is disposed between the fan module and the air outlet module, and the kill filter module is disposed between the air storage box and the fan module. Between the suction module and the fan module, and adjacent two modules are communicated through an airflow channel.
  • the outlet of the air storage box is provided on the top of the air storage box, and the inlet of the air storage box is lower than the outlet of the air storage box.
  • the killing filtering module includes a primary filtering module, a high-voltage electrostatic module, an activated carbon module, and a high-efficiency module.
  • the air curtain system further includes a main control module, and the fan module is electrically connected to the main control module.
  • the air curtain system further includes a touch screen and a detection module electrically connected to the main control module.
  • Another object of the present invention is to provide an isolation and protection device including a frame body, a fan, a sterilization filter unit, and an air storage box.
  • the fan, the sterilization filter unit, and the air storage box are disposed on the frame body. Inside, and the inlet of the fan is connected with the sterilization filter unit, and the outlet of the fan is connected with the inlet of the air storage box;
  • the rack main body is provided with a first air outlet duct arranged along a length direction of the rack main body, the first air outlet duct is communicated with an outlet of the air storage box, and the rack main body A first air outlet corresponding to the first air outlet air duct is provided on the top;
  • the two sides of the main body of the rack are provided with air inlets connected to the inlet of the fan, and the sterilization filter unit is connected between the air inlet and the inlet of the fan.
  • the air storage box has a Y-funnel structure, an inlet of the air storage box is located at a side thereof, an outlet of the air storage box is located at a top thereof, and a length of the outlet of the air storage box is equal to the first outlet The length of the wind tunnel.
  • the rack main body is provided with a second air outlet duct arranged along a width direction of the rack body, and a first end portion of the second air outlet duct and the first air outlet The ends of the air duct communicate with each other, and a second air outlet corresponding to the second air outlet is provided on the top of the rack body, and the first end of the second air outlet is connected to the first air outlet.
  • One end of the tuyere is connected;
  • a third air outlet duct is arranged in the vertical direction in the main body of the rack, and an upper end portion of the third air outlet duct is in communication with a second end portion of the second air outlet duct.
  • a third air outlet corresponding to the third air outlet is provided on a side of the rack body facing the protection object, and an upper end of the third air outlet is in communication with a second end of the second air outlet.
  • the wind speed of the air curtain is 2m / s to 4m / s.
  • the first air outlet is provided with a guide grid that inclines the air curtain toward the side of the isolation object, and the angle between the air curtain and the normal direction of the first air outlet duct is 15 ° to 25 °.
  • the air curtain system comprises an air suction module, a fan module, a kill filter module, an air outlet module and an air storage box.
  • the inlet of the fan module is connected to the air suction module, and the outlet of the fan module is connected to the air outlet module.
  • the air box is located between the fan module and the air outlet module, the kill filter module is located between the air storage box and the fan module or between the air suction module and the fan module, and the adjacent two modules are communicated through an air flow channel.
  • the fan provides a wind source, so that the suction module and the outlet module form a positive and negative pressure difference. The air carrying germs is sucked by the suction module, and then enters the kill filter module for disinfection and sterilization, and becomes clean.
  • the air enters the air storage box for storage, and finally blows out from the air outlet module to form a positive pressure air curtain with isolation function, thereby achieving the function of reducing the spread of germs and preventing cross infection.
  • the most important thing is that the setting of the air storage box can ensure that the air outlet module continuously and uniformly blows out the air curtain with sufficient pressure to ensure that the respiratory airflow transmission path between people is completely blocked to completely prevent the spread of germs and the risk of cross infection .
  • the present invention also provides an isolation and protection device. Since the isolation and protection device adopts the above-mentioned air curtain system, the air curtain with sufficient pressure can also be continuously and uniformly blown out, and the blocking effect is excellent.
  • FIG. 1 is a schematic diagram of an air curtain system according to an embodiment of the present invention.
  • FIG. 2 is a schematic structural diagram of an isolation and protection device according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of the airflow direction of the isolation and protection device according to the embodiment of the present invention.
  • FIG. 4 is a schematic diagram of the positions of the test points on the first air outlet duct and the second air outlet duct according to the embodiment of the present invention.
  • FIG. 5 is a schematic diagram of positions of test points on a third air outlet duct according to an embodiment of the present invention.
  • FIG. 6 is a schematic structural diagram of a guide grid according to an embodiment of the present invention.
  • Fig. 7 is a sectional view taken along A-A in Fig. 4.
  • FIG. 8 is a composition diagram of the Scenario 0 (Case 0) condition in the CFD simulation of the embodiment of the present invention.
  • FIG. 9 is a composition diagram under the scenario 1 (Case 1) condition in the CFD simulation of the embodiment of the present invention.
  • FIG. 10 is a composition diagram under the scenario 1 (Case 2) condition in the CFD simulation of the embodiment of the present invention.
  • FIG. 11 is a composition diagram under the scenario 1 (Case 3) condition in the CFD simulation of the embodiment of the present invention.
  • FIG. 12 is a composition diagram under the condition Scenario 5 (Case 2) in the CFD simulation of the embodiment of the present invention.
  • FIG. 13 is a composition diagram under the scenario 5 (Case 5) condition in the CFD simulation of the embodiment of the present invention.
  • FIG. 14 is a composition diagram under the Scenario 5 (Case 8) condition in the CFD simulation of the embodiment of the present invention.
  • 15 is a line chart of the average mole fraction ( ⁇ 10 -4 ) of the tracer gas near the mouth of the medical staff at different air supply speeds and air supply angles.
  • Air storage box 5. Air outlet module 6, main control module, 7, touch screen, 8, detection module, 10, rack body, 11, air inlet, 12, first air outlet, 13, second air outlet, 14, third air outlet, 15, Guiding grid, 20, fan, 51, first air duct, 52, second air duct, 53, third air duct.
  • an embodiment of the present invention provides an air curtain system, which includes an air suction module 1, a fan module 2, a kill filter module 3, an air storage box 4, and an air outlet module 5, and an inlet and an air suction of the fan module 2.
  • Module 1 is connected.
  • the outlet of fan module 2 is connected to air outlet module 5.
  • the air storage box 4 is located between fan module 2 and air outlet module 5.
  • the kill filter module 3 is located between air storage box 4 and fan module 2.
  • Two adjacent modules communicate with each other through an airflow channel. Based on the above structure, the fan 20 provides a wind source, so that the suction module 1 and the outlet module 5 form a positive and negative pressure difference.
  • the air carrying bacteria is sucked by the suction module 1 and then enters the kill filter module 3 for disinfection and sterilization. It becomes clean air, and then enters the air storage box 4 for storage, and finally blows out from the air outlet module 5 to form a positive pressure air curtain that can block the transmission path of breathing air flow between people, so as to reduce the spread of germs and prevent the occurrence of Cross infection function.
  • the kill filter module 3 may also be provided between the suction module 1 and the fan module 2, which can also perform disinfection and sterilization on the sucked air.
  • the airflow from the fan module 2 is directly blown out through the air outlet module 5, conditions such as disordered airflow and uneven air outlet are prone to affect the formation or blocking effect of the air curtain. Therefore, the airflow between the fan module 2 and the air outlet module An air storage tank 4 is provided between 5 to ensure a certain wind pressure, which can solve the above problems.
  • the outlet of the air storage box 4 is provided on the top of the air storage box 4, and the inlet of the air storage box 4 is lower than the outlet of the air storage box 4. The clean air after sterilization and sterilization will not immediately enter the air storage box 4 from the air storage box 4 inlet.
  • the wind module 5 continuously and uniformly blows out a wind curtain with sufficient pressure to ensure that the respiratory airflow transmission path between people is completely blocked, completely eliminating the risk of germ transmission and cross infection.
  • the air curtain system further includes a main control module 6 and a touch screen 7. Both the fan module 2 and the touch screen 7 are electrically connected to the main control module 6. Based on this, the user controls the main control through the touch screen 7. The module 6 issues a command, and then the main control module 6 controls the fan module 2 to realize functions such as start and stop, timing, and gear adjustment of the fan module 2.
  • the air curtain system also includes a detection module 8 electrically connected to the main control module 6. The detection module 8 is used to detect data such as PM2.5 and carbon dioxide value in the air and transmit it to the main control module 6. The main control module 6 then The detection data is displayed on the touch screen 7 so that the user can monitor the air quality in the environment in real time.
  • the kill filter module 3 includes a primary filter module 31, a high-voltage electrostatic module 32, an activated carbon module 33, and a high-efficiency module 34.
  • the air outlet module 5 generally uses a strip-shaped air outlet groove, and according to the actual application situation, the direction of the strip-shaped air outlet groove can be designed into various shapes, such as Z-shaped, L-shaped, U-shaped, etc.
  • an embodiment of the present invention further provides an isolation and protection device using the air curtain system, including a frame body 10, a fan 20, a sterilization filter unit (not shown), and an air storage box 4. 20.
  • the sterilization filter unit and the air storage box 4 are arranged inside the rack body 10, and the inlet of the fan 20 is connected to the sterilization filter unit, and the outlet of the fan 20 is connected to the inlet of the air storage box 4; both sides of the rack body 10
  • An air inlet 11 is provided, which is in communication with the inlet of the fan 20, and the sterilization filter unit is connected between the air inlet 11 and the inlet of the fan 20.
  • the main body 10 has a first outlet arranged along the length direction of the main body 10.
  • the air duct 51, the first air duct 51 is communicated with the outlet of the air storage box 4, and a first air outlet 12 corresponding to the first air duct 51 is provided on the top of the rack body 10.
  • the fan 20 is equivalent to the fan module 2 in the air curtain system
  • the sterilization filter unit is equivalent to the kill filter module 3 in the air curtain system
  • the first outlet air duct 51 is equivalent to the air outlet module 5 in the air curtain system.
  • the air inlet 11 corresponds to the air suction module 1 in the air curtain system.
  • the fan 20 is used to form a positive and negative pressure difference inside the rack body 10, and the air inlet 11 sucks in the ambient air and processes it through the sterilization filter unit, and then stores it in the air storage box 4 until the air storage box 4 is full. After the clean air, it is finally blown out uniformly through the first outlet air duct 51, forming a positive pressure air curtain that cuts off the respiratory air flow path between the isolation object and the protection object, thereby reducing the spread of germs and preventing cross infection. .
  • the side of the rack body 10 that is close to the isolation object is used as the front end, and the side that is close to the protection object is the rear end.
  • the first air outlet duct 51 is provided on the rack.
  • the top of the main body 10 is parallel to the long side of the rack main body 10, and the first air outlet air duct 51 is arranged near the front end of the rack main body 10, so that the isolation wind curtain blown out can carry the object being exhaled. The air of germs is blocked in a timely and effective manner.
  • the air storage box 4 is arranged between the outlet of the fan 20 and the first air outlet channel 51, so as to ensure that the first air outlet channel 51 continuously and uniformly blows out a sufficient pressure wind curtain to strengthen the partition effect and ensure the isolation and protection objects.
  • the respiratory airflow transmission path is completely blocked to completely eliminate the risk of germ transmission and cross infection.
  • the left and right sides of the main frame body 10 are respectively provided with air inlets 11, the air inlets 11 are connected to the air inlet of the fan 20, and the sterilization filter unit is provided between the air inlet 11 and the inlet of the fan 20, 20 Negative pressure formed inside the main body 10 of the rack, external air can be continuously sucked from the air inlet 11 including germ-bearing air exhaled by the isolation object, and the air is directly sucked into the air inlet 11 through the air inlet 11
  • the sterilization filter unit is quickly and effectively purified and re-converted into clean air.
  • the clean air is continuously transported to the fan 20, and is finally output from the first air outlet 51 with positive pressure to form an isolated air curtain.
  • the dual means of air purification and air curtain partitioning not only avoids the phenomenon of cross infection in the process of human-to-human communication, but also more effectively prevents the spread of germs and further improves the safety of isolation.
  • the sterilization filter unit includes a primary effect filter, a high-voltage electrostatic filter, an activated carbon filter, and a high-efficiency filter connected in order.
  • the air inlet 11 is connected to the primary effect filter
  • the high-efficiency filter is connected to the inlet of the fan 20. Gases that may carry viruses and bacteria exhaled from the isolated object being sucked in at the air inlet 11 pass through the primary effect filter, the high-voltage electrostatic filter, the activated carbon filter, and the high-efficiency filter, and then enter the fan 20. Based on the above-mentioned multiple killing links, the sterilizing and filtering unit can efficiently and reliably purify the air and ensure the quality of the purification work.
  • the rack main body 10 is provided with a second air outlet duct 52, the second air outlet duct 52 is arranged along the width direction of the rack body 10, and the second air outlet duct
  • the first end of the duct 52 is in communication with the end of the first air outlet duct 51;
  • the top of the rack body 10 is provided with a second air outlet 13 and a second air outlet corresponding to the second air duct 52
  • the first end of 13 is in communication with one end of the first air outlet 12.
  • the number of the second air outlet ducts 52 is set to two, and the two second air outlet ducts 52 are respectively connected to both ends of the first air outlet duct 51, and the second air outlet ducts 52
  • the air duct 52 and the first air duct 51 are arranged perpendicular to each other, forming a U-shaped air duct in the rack body 10; correspondingly, the number of the second air outlets 13 is also set to two, and The two second air outlets 13 and the first air outlet 12 form a U-shaped air outlet.
  • the rack main body 10 is further provided with a third air outlet duct 53 arranged in a vertical direction, an upper end portion of the third air outlet duct 53 and a second end portion of the second air outlet duct 52. Communication; the side of the rack body 10 facing the protection object is provided with a third air outlet 14 corresponding to the third air outlet 53, and the upper end of the third air outlet 14 is in communication with the second end of the second air outlet 13 .
  • the number of the third air outlet ducts 53 is also set to two, and the third air outlet 14 is also set to two.
  • the positive air curtains blown out by the first, second, and third air outlet channels 51, 52, and 53 respectively can provide a more closed space for the protected object, and provide a high degree of protection for the protected object.
  • the existence of the second air outlet duct 52 and the third air outlet duct 53 can also reduce to a certain extent the protection objects caused by the excessive air supply angle of the first air outlet duct 51. Risk to improve the reliability of the entire isolation protection device.
  • the inlet of the air storage box 4 is located on its side, and the outlet of the air storage box 4 is located on its top. Therefore, after the clean air in the air storage box 4 is stored, the air automatically passes through the first One air outlet duct is evenly divided to the second air outlet duct 52 and the third air outlet duct 53 on the left and right sides, thereby ensuring that the first air outlet 12, the second air outlet 13, and the third air outlet 14 are blown out.
  • the strength of the air curtain is uniform to improve the partition effect.
  • the air storage box 4 is selected as a Y funnel-shaped structure, and the length of the outlet of the air storage box 4 is equal to the length of the first air outlet duct 51.
  • the design of the Y funnel shape effectively reduces the resistance of the air, so that The air can smoothly transition into the first air outlet duct 51, thereby ensuring the smoothness of air circulation.
  • the structural shape design of the air storage box 4 is not limited by this embodiment. When an actual type of the air storage box 4 can be selected according to actual needs.
  • the air storage box 4 is also provided with a noise reduction device, which can reduce the noise generated during the work of the air storage box 4 and provide a better experience for the user to achieve a better use effect.
  • the isolation and protection device in this embodiment performs a test for detecting the air condition.
  • the specific test process is as follows:
  • Table 1 shows the test data at each test point of the first air outlet duct 51, the second air outlet duct 52 on the left side, and the third air outlet duct 53 on the left side;
  • Table 2 shows the test data at each test point of the first air outlet duct 51, the right second air outlet duct 52, and the right third air outlet duct 53;
  • the isolation and protection device in this embodiment is also provided with a main control module 6, a detection module 8, and a touch screen 7, and the detection module 8, the touch screen 7, and the fan 20 are electrically connected to the main control module 6.
  • the detection module 8 is used to detect data such as PM2.5 and carbon dioxide value in the air;
  • the touch screen 7 is used to send instructions to the main control module 6 to control the start, stop, timing and gear adjustment of the fan 20.
  • the first air outlet 12 in this embodiment is provided with an air curtain that inclines the air curtain to the side of the isolation object. ⁇ StyleGrid 15.
  • the inclination angle of the air curtain is too small, it will not be able to improve the partition effect; if the inclination angle is too large, the air curtain will be easily passed by the airflow exhaled by the isolation object, and the partition effect will not be achieved at all.
  • the design of the guide angle of the wind grille 15 is very important.
  • the air supply speed of the air curtain also has a very important influence on the partition effect of the air curtain.
  • the isolation and protection device in this embodiment performs CFD (Computational Fluid Dynamics) simulation.
  • CFD Computer Fluid Dynamics
  • the blocking effect of the isolation protection device using airflow is studied, and the influence of different parameters on the blocking effect is obtained, including: the speed of the air curtain outlet, and the angle of the air supply. From these two aspects, suggestions for improving the optimal design of the isolation protection device are put forward. Under the conditions of this simulation, the isolation protection device is located in the center of the room, and the midpoint of the line between the protection object and the isolation object is the center point of the room. Relevant parameters in the geometric model, including the size of the isolation guard, the size and position of the return air outlet, are established in accordance with the known parameters of the actual product, and reasonably simplified.
  • the main function of the air curtain is to isolate the pathogenic microbial aerosols exhaled by the isolation object
  • the state of the isolated object and the protected object breathing at the same time under certain conditions is simplified, and the isolation is emphasized.
  • Subject exhales and protects the subject from inhaling.
  • the air supply angle ⁇ refers to the included angle (°) between the air supply direction of the first air outlet duct 51 on the top of the rack body 10 and its normal direction (biased to the isolation target direction).
  • the tracer gas is used to represent the gas components exhaled by the isolation object.
  • the calculated component diagrams refer to the mole fraction distribution of the tracer gas.
  • Case 0 is used as a control group, and it is assumed that the frame body 10 has no air curtain.
  • the airflow exhaled by the isolation object is sucked up by the thermal plume generated from the top of the head, and rises to the top of the head, and at the same time, it is offset to the wall on one side.
  • the number of ventilations without a curtain is less than the number of ventilations with a curtain, so Case 0 has a smaller number of ventilations and a longer pollutant residence time.
  • the airflow of the isolated object may circle around the room, resulting in a high concentration of tracer gas near the mouth of the protected object (which can reach several times of other Cases), and the exposed time of the protected object is also longer. Therefore, it is very effective to set a wind curtain to reduce the risk of infection of the protection object.
  • the air supply speed of the air curtain is increased to 3 m / s.
  • the supply air flow formed a relatively complete wind curtain, and the pollutants on the left of the isolation object were basically blocked on the left side of the curtain, and only a few could escape to the right side of the curtain.
  • the exhaled air flow is biased toward the supply air flow. This is due to the high speed of the supply air flow and the strong entrainment effect on the object's exhaled air flow.
  • the cooler supply air flow is scattered in the room, even in the room. A certain temperature stratification was formed in the upper and middle part of the room (upper heat-middle upper and lower cold-middle and lower heat), which destroyed the thermal plume.
  • the average concentration of the exhaled air of the isolated object in the ceiling area above the head of the protected object is higher than the case where the air supply speed of the Case 2 stroke curtain is 3m / s, which increases the breathing area of the protected object. Risk of pollution. This is because the higher-speed airflow has a stronger entrainment effect on the exhaled gas of the isolation object, and the larger the difference between the density of the mixed gas and the surrounding air density, the easier it is for the protection object to sink. Therefore, the larger the air velocity is, the better.
  • Case 5 adjusts the air supply angle to 20 ° on the basis of Case 2.
  • the cold air from the first air outlet 51 of the rack body 10 can effectively isolate the object Exhaled gas is controlled in a small area behind the isolated object, and it is not easy to reach the breathing area of the protected object, so as to suppress the spread of pollutants.
  • the airflow around the object is protected from the direct influence of the wind curtain, and its thermal plume can develop normally. This situation can better block the airflow interaction between the isolated object and the protected object, and can reduce the risk of aerosol infection in the actual environment.
  • Case 8 tilts the direction of the air curtain to the side of the isolation object again, and the air supply angle is adjusted to 40 °.
  • the air flow between the isolation object and the protection object is freely connected, and the tracer gas in the breathing area of the protection object's mouth The density is higher, and the wind curtain is the same. This is because at this time, the air supply angle of the air curtain is too low, and the air supply airflow is very easy to be attracted by the exhaled airflow of the isolation object. It is even suppressed by the exhaled airflow of the high-temperature isolation object below it, and the airflow will directly reach the isolation object. Below the mouth, the exhaled airflow of the isolated object can directly move over the airflow and move freely to the protected object area.
  • the short-side air vent of the rack body 10 interferes and suppresses the movement of the exhaled airflow of the isolated object to a certain extent, so that the exhaled airflow of the isolated object moves away from the direction of the protected object and returns to the back of the isolated object.
  • Figure 15 shows the mole fraction of the tracer gas near the mouth of the protected object under different functional parameters (supply angle and air velocity).
  • the mole fraction of the tracer gas attached to the mouth of the protector represents the exhaled gas entering the The proportion of breathing areas protected by the subject's mouth. From the results, the lowest mole fraction is the case of Case 3 (supply angle 0 °, wind speed 4m / s). However, in this case, the average concentration of the tracer gas above the head of the protected object is high, which increases the risk of contamination of the breathing area, so it is not the best case.
  • the blocking effect of the supply air speed of 3m / s (Case 2,5,8) is better than that of 2m / s (Case 1,4,7) and 4m / s (Case 3,6,9).
  • the reason is that the air curtain formed by the air supply speed of 2m / s is not strong enough, and it is easy to be punctured by the exhaled airflow of the isolation object near the ceiling, causing the leakage of the exhaled airflow of the isolation object to enter the protection object side; and the airflow speed of 4m / s It will also increase the turbulence of airflow in the room, which will intensify the mixing of the air in the room, resulting in the exhaled airflow of the isolated object is likely to be filled in the entire room, and the 4m / s air supply speed may cause the isolated object to 3m / s is more suitable because of the air blowing feeling brought by the flow.
  • 2m / s and 4m / s is the protection scope of
  • the blocking effect of the supply air angle of 20 ° is better than that of 0 ° (Case 1, 2, 3) and 40 ° (Case 7, 8, 9). Because compared with 0 °, the 20 ° supply air stream has an active surface inclined toward the isolation object, which has a better suppression effect on the exhaled air of the isolation object and blows pollutants to the space behind the isolation object; and 40 ° The angle of the air supply is too close to the mouth of the isolation subject because the airflow is tilted too much, and it is taken directly under the mouth of the isolation subject under the entrainment of the exhalation airflow of the isolation subject, which cannot block the exhalation airflow of the isolation subject. .
  • the air supply angle is designed to be 20 °, which is only the most preferred angle. Although the effect achieved by plus or minus 5 ° is not sufficient, it still meets the needs of use. Therefore, between 15 ° and 25 ° All are within the scope of the present invention.
  • the air curtain system provided by the embodiment of the present invention is mainly used in the medical field.
  • an isolation protection device can be used as a consultation table, taking the isolation of medical staff and patients as a starting point, and forming a wind between medical staff and patients.
  • the curtain acts as a barrier to isolate aerosols carrying or potentially carrying infectious pathogens on the patient side, protecting medical personnel to the greatest extent.
  • the air curtain system can also be applied to other public places prone to cross infection, such as the isolated ward of a hospital to isolate patients with infectious diseases from ordinary patients; or the anti-pollution area of a laboratory to isolate experimental substances. And laboratory personnel; or in public transportation to isolate passengers and drivers; or hospital registration windows, station ticket windows, bank counters, etc., to isolate staff and mobile people.
  • the air curtain system mainly includes an air suction module 1, a fan module 2, a kill filter module 3, an air storage box 4, and an air outlet module 5.
  • the inlet of the fan module 2 is connected to the air suction module 1.
  • the outlet of the fan module 2 is connected to the air outlet module 5.
  • the air storage box 4 is located between the fan module 2 and the air outlet module 5.
  • the kill filter module 3 is located between the air storage box 4 and the fan module 2 or the air suction module 1. It communicates with the fan module 2 and the two adjacent modules through an airflow channel.
  • the air curtain system can suck air carrying germs and perform disinfection and sterilization treatment, and at the same time, continuously and uniformly blow out the air curtain with sufficient pressure to ensure that the breathing air flow path between people is completely blocked. Completely eliminate the risk of germ transmission and cross infection.
  • the present invention also provides an isolation and protection device using the above-mentioned air curtain system.
  • the isolation and protection device designs an optimal air supply angle and air supply speed through a complete CFD simulation. In addition to the continuous and uniform blowout of the air curtain, it has the best blocking effect.
  • first, second, etc. are used in the present invention to describe various kinds of information, but the information should not be limited to these terms, these terms are only used to distinguish the same type of information from each other.
  • first information may also be referred to as “second” information
  • second information may also be referred to as “first” information.

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Abstract

An air curtain system, comprising an air drawing module (1), a fan module (2), a disinfection and filtration module (3), an air outlet module (5), and an air storage container (4). An inlet of the fan module (2) communicates with the air drawing module (1), and an outlet of the fan module (2) communicates with the air outlet module (5). The air storage container (4) is disposed between the fan module (2) and the air outlet module (5). The disinfection and filtration module (3) is disposed between the air storage container (4) and the fan module (2) or between the air drawing module (1) and the fan module (2). Two adjacent modules communicate via an airflow channel. The air storage container (4) ensures that the air outlet module (5) continuously and uniformly blows out an air curtain of sufficient pressure, thereby completely blocking a transmission path of respiratory airflow between people. Further provided is a protective isolation device employing the air curtain system.

Description

一种风帘***及隔离防护装置Air curtain system and isolation protection device 技术领域Technical field
本发明涉及医疗设备技术领域，尤其涉及一种风帘***及隔离防护装置。The invention relates to the technical field of medical equipment, in particular to an air curtain system and an isolation protection device.
背景技术Background technique
生态环境急遽改变的廿一世纪，具有传染病的病毒或细菌多种多样，例如SARS，肺结核，脑膜炎、脑脊髓膜炎，水痘，麻疹，德国麻疹，流行性感冒等等，俨然成为人类健康的重大威胁，迫使人类更加重视经由空气或飞沫等媒介携带传播的潜在危险性病菌。由此，在医院或诊所中，防止病菌扩散和交叉感染是一项极其重要的预防工作，而带有传播性病菌的病人更是医院和诊所重点防护的对象，实属重中之重。In the 21st century when the ecological environment has changed rapidly, there are a variety of viruses or bacteria with infectious diseases, such as SARS, tuberculosis, meningitis, cerebrospinal meningitis, chickenpox, measles, German measles, influenza, etc., which have become human health. The great threat of human beings has forced human beings to pay more attention to the potentially dangerous germs transmitted through the air or droplets. Therefore, in hospitals or clinics, preventing the spread of germs and cross-infection is an extremely important prevention task, and patients with transmissible germs are the key targets of protection in hospitals and clinics, which is the top priority.
目前，有研发人员设计了一种具备隔离功能的隔离防护装置，能够吹出一道隔断人与人之间呼吸气流传播路径的风帘，以降低病菌传播或产生交叉感染的机率。但是，该类隔离防护装置的气流路径过于简单，直接将风机吹出的风引出为风帘，因此容易出现出风不均匀等问题，进而导致隔断效果不佳，依然存在病菌传播和交叉感染的风险。At present, some researchers have designed an isolation protection device with an isolation function, which can blow out a wind curtain that cuts off the path of the respiratory airflow between people, so as to reduce the chance of germ transmission or cross infection. However, the airflow path of this type of isolation and protection device is too simple, and the wind blown out by the fan is directly drawn as a wind curtain, so problems such as uneven wind are easy to occur, which leads to poor partitioning effect, and there is still a risk of germ transmission and cross infection. .
因此，特别需要一种出风均匀、隔断效果好的风帘***和隔离防护装置，以彻底杜绝病菌传播和产生交叉感染的风险。Therefore, there is a special need for an air curtain system and an isolation protection device with uniform air output and good blocking effect to completely eliminate the risk of germ transmission and cross infection.
发明内容Summary of the Invention
为解决上述技术问题，本发明提供一种风帘***及隔离防护装置，该风帘***及隔离防护装置能够将携带病菌的空气吸入并进行消毒杀菌处理，同时持续均匀地吹出足够压力的风帘，确保人与人之间的呼吸气流传播路径被完全隔断，以彻底杜绝病菌传播和产生交叉感染的风险。In order to solve the above technical problems, the present invention provides an air curtain system and an isolation protection device. The air curtain system and the isolation protection device can suck air carrying germs and perform disinfection and sterilization treatment, and at the same time continuously and uniformly blow out a sufficient pressure air curtain To ensure that the path of respiratory air flow between people is completely blocked to completely eliminate the risk of germ transmission and cross infection.
基于此，本发明提供了一种风帘***，包括吸风模块、风机模块、消杀过滤模块、出风模块以及储风箱，所述风机模块的进口与所述吸风模块相连 通，所述风机模块的出口与所述出风模块相连通，所述储风箱设于所述风机模块与所述出风模块之间，所述消杀过滤模块设于所述储风箱与所述风机模块之间或所述吸风模块与所述风机模块之间，相邻两个模块之间通过气流通道相连通。Based on this, the present invention provides an air curtain system including an air suction module, a fan module, a kill filter module, an air outlet module, and an air storage box. The inlet of the fan module is in communication with the air suction module. The outlet of the fan module is in communication with the air outlet module, the air storage box is disposed between the fan module and the air outlet module, and the kill filter module is disposed between the air storage box and the fan module. Between the suction module and the fan module, and adjacent two modules are communicated through an airflow channel.
作为优选方案，所述储风箱的出口设于所述储风箱的顶部，所述储风箱的进口低于所述储风箱的出口。As a preferred solution, the outlet of the air storage box is provided on the top of the air storage box, and the inlet of the air storage box is lower than the outlet of the air storage box.
作为优选方案，所述消杀过滤模块包括初滤模块、高压静电模块、活性炭模块以及高效模块。As a preferred solution, the killing filtering module includes a primary filtering module, a high-voltage electrostatic module, an activated carbon module, and a high-efficiency module.
作为优选方案，所述风帘***还包括有主控模块，所述风机模块与所述主控模块电连接。As a preferred solution, the air curtain system further includes a main control module, and the fan module is electrically connected to the main control module.
作为优选方案，所述风帘***还包括有与所述主控模块电连接的触摸屏以及检测模块。As a preferred solution, the air curtain system further includes a touch screen and a detection module electrically connected to the main control module.
本发明的另一目的在于提供一种隔离防护装置，包括机架主体、风机、杀菌过滤单元以及储风箱，所述风机、所述杀菌过滤单元以及所述储风箱设于所述机架主体的内部，且所述风机的进口与所述杀菌过滤单元相连通，所述风机的出口与所述储风箱的入口相连通；Another object of the present invention is to provide an isolation and protection device including a frame body, a fan, a sterilization filter unit, and an air storage box. The fan, the sterilization filter unit, and the air storage box are disposed on the frame body. Inside, and the inlet of the fan is connected with the sterilization filter unit, and the outlet of the fan is connected with the inlet of the air storage box;
所述机架主体内设有沿所述机架主体的长度方向布置的第一出风风道，所述第一出风风道与所述储风箱的出口相连通，且所述机架主体的顶部设有与所述第一出风风道相对应的第一出风口；The rack main body is provided with a first air outlet duct arranged along a length direction of the rack main body, the first air outlet duct is communicated with an outlet of the air storage box, and the rack main body A first air outlet corresponding to the first air outlet air duct is provided on the top;
所述机架主体的两侧设有与所述风机的进口相连通的吸风口，所述杀菌过滤单元连通于所述吸风口与所述风机的进口之间。The two sides of the main body of the rack are provided with air inlets connected to the inlet of the fan, and the sterilization filter unit is connected between the air inlet and the inlet of the fan.
作为优选方案，所述储风箱为Y漏斗形结构，所述储风箱的入口位于其侧部，所述储风箱的出口位于其顶部，且所述储风箱的出口的长度等于所述第一出风风道的长度。As a preferred solution, the air storage box has a Y-funnel structure, an inlet of the air storage box is located at a side thereof, an outlet of the air storage box is located at a top thereof, and a length of the outlet of the air storage box is equal to the first outlet The length of the wind tunnel.
作为优选方案，所述机架主体内设有沿所述机架主体的宽度方向布置的第二出风风道，所述第二出风风道的第一端部与所述第一出风风道的端部相 连通，所述机架主体的顶部设有与所述第二出风风道相对应的第二出风口，所述第二出风口的第一端与所述第一出风口的一端相连通；As a preferred solution, the rack main body is provided with a second air outlet duct arranged along a width direction of the rack body, and a first end portion of the second air outlet duct and the first air outlet The ends of the air duct communicate with each other, and a second air outlet corresponding to the second air outlet is provided on the top of the rack body, and the first end of the second air outlet is connected to the first air outlet. One end of the tuyere is connected;
所述机架主体内设有沿竖直方向布置的第三出风风道，所述第三出风风道的上端部与所述第二出风风道的第二端部相连通，所述机架主体朝向保护对象的侧面设有与所述第三出风风道相对应的第三出风口，所述第三出风口的上端与所述第二出风口的第二端相连通。A third air outlet duct is arranged in the vertical direction in the main body of the rack, and an upper end portion of the third air outlet duct is in communication with a second end portion of the second air outlet duct. A third air outlet corresponding to the third air outlet is provided on a side of the rack body facing the protection object, and an upper end of the third air outlet is in communication with a second end of the second air outlet.
作为优选方案，所述风帘的风速为2m/s至4m/s。As a preferred solution, the wind speed of the air curtain is 2m / s to 4m / s.
作为优选方案，所述第一出风口设有使风帘向隔离对象所在侧倾斜的导风格栅，且所述风帘与所述第一出风风道的法线方向的夹角为15°至25°。As a preferred solution, the first air outlet is provided with a guide grid that inclines the air curtain toward the side of the isolation object, and the angle between the air curtain and the normal direction of the first air outlet duct is 15 ° to 25 °.
实施本发明实施例，具有如下有益效果：Implementing the embodiments of the present invention has the following beneficial effects:
本发明提供的风帘***包括吸风模块、风机模块、消杀过滤模块、出风模块以及储风箱，风机模块的进口与吸风模块相连通，风机模块的出口与出风模块相连通，储风箱设于风机模块与出风模块之间，消杀过滤模块设于储风箱与风机模块之间或吸风模块与风机模块之间，相邻两个模块之间通过气流通道相连通。基于上述结构，风机提供风源，使吸风模块和出风模块形成正负压差，携带病菌的空气由此被吸风模块吸入，然后进入消杀过滤模块进行消毒杀菌处理，变为洁净的空气，再进入储风箱蓄存，最后从出风模块吹出，形成一道具有隔离功能的正压风帘，从而实现降低病菌传播、防止产生交叉感染的功能。最重要的是，储风箱的设置能够保证出风模块持续均匀地吹出足够压力的风帘，确保人与人之间的呼吸气流传播路径被完全隔断，以彻底杜绝病菌传播和产生交叉感染的风险。The air curtain system provided by the invention comprises an air suction module, a fan module, a kill filter module, an air outlet module and an air storage box. The inlet of the fan module is connected to the air suction module, and the outlet of the fan module is connected to the air outlet module. The air box is located between the fan module and the air outlet module, the kill filter module is located between the air storage box and the fan module or between the air suction module and the fan module, and the adjacent two modules are communicated through an air flow channel. Based on the above structure, the fan provides a wind source, so that the suction module and the outlet module form a positive and negative pressure difference. The air carrying germs is sucked by the suction module, and then enters the kill filter module for disinfection and sterilization, and becomes clean. The air enters the air storage box for storage, and finally blows out from the air outlet module to form a positive pressure air curtain with isolation function, thereby achieving the function of reducing the spread of germs and preventing cross infection. The most important thing is that the setting of the air storage box can ensure that the air outlet module continuously and uniformly blows out the air curtain with sufficient pressure to ensure that the respiratory airflow transmission path between people is completely blocked to completely prevent the spread of germs and the risk of cross infection .
此外，本发明还提供一种隔离防护装置，由于该隔离防护装置采用了上述风帘***，因此同样能够持续均匀地吹出足够压力的风帘，隔断效果上佳。In addition, the present invention also provides an isolation and protection device. Since the isolation and protection device adopts the above-mentioned air curtain system, the air curtain with sufficient pressure can also be continuously and uniformly blown out, and the blocking effect is excellent.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1是本发明实施例的风帘***的示意图。FIG. 1 is a schematic diagram of an air curtain system according to an embodiment of the present invention.
图2是本发明实施例的隔离防护装置的结构示意图。FIG. 2 is a schematic structural diagram of an isolation and protection device according to an embodiment of the present invention.
图3是本发明实施例的隔离防护装置的气流方向示意图。FIG. 3 is a schematic diagram of the airflow direction of the isolation and protection device according to the embodiment of the present invention.
图4是本发明实施例的第一出风风道和第二出风风道上各测试点的位置示意图。FIG. 4 is a schematic diagram of the positions of the test points on the first air outlet duct and the second air outlet duct according to the embodiment of the present invention.
图5是本发明实施例的第三出风风道上各测试点的位置示意图。FIG. 5 is a schematic diagram of positions of test points on a third air outlet duct according to an embodiment of the present invention.
图6是本发明实施例的导风格栅的结构示意图。FIG. 6 is a schematic structural diagram of a guide grid according to an embodiment of the present invention.
图7是图4中A-A的剖视图。Fig. 7 is a sectional view taken along A-A in Fig. 4.
图8是本发明实施例的CFD模拟中Scenario 0(Case 0)条件下的组分图。FIG. 8 is a composition diagram of the Scenario 0 (Case 0) condition in the CFD simulation of the embodiment of the present invention.
图9是本发明实施例的CFD模拟中Scenario1(Case 1)条件下的组分图。FIG. 9 is a composition diagram under the scenario 1 (Case 1) condition in the CFD simulation of the embodiment of the present invention.
图10是本发明实施例的CFD模拟中Scenario1(Case 2)条件下的组分图。FIG. 10 is a composition diagram under the scenario 1 (Case 2) condition in the CFD simulation of the embodiment of the present invention.
图11是本发明实施例的CFD模拟中Scenario1(Case3)条件下的组分图。FIG. 11 is a composition diagram under the scenario 1 (Case 3) condition in the CFD simulation of the embodiment of the present invention.
图12是本发明实施例的CFD模拟中Scenario5(Case 2)条件下的组分图。FIG. 12 is a composition diagram under the condition Scenario 5 (Case 2) in the CFD simulation of the embodiment of the present invention.
图13是本发明实施例的CFD模拟中Scenario5(Case 5)条件下的组分图。FIG. 13 is a composition diagram under the scenario 5 (Case 5) condition in the CFD simulation of the embodiment of the present invention.
图14是本发明实施例的CFD模拟中Scenario5(Case 8)条件下的组分图。FIG. 14 is a composition diagram under the Scenario 5 (Case 8) condition in the CFD simulation of the embodiment of the present invention.
图15是不同送风速度和送风角度下医务人员嘴巴附近的示踪气体平均摩尔分数(×10 -4)的折线图。 15 is a line chart of the average mole fraction (× 10 -4 ) of the tracer gas near the mouth of the medical staff at different air supply speeds and air supply angles.
附图标记说明：Reference sign description:
1、吸风模块，2、风机模块，3、消杀过滤模块，31、初滤模块，32、高压静电模块，33、活性炭模块，34、高效模块，4、储风箱，5、出风模块，6、主控模块，7、触摸屏，8、检测模块，10、机架主体，11、吸风口，12、第一出风口，13、第二出风口，14、第三出风口，15、导风格栅，20、风机，51、第一出风风道，52、第二出风风道，53、第三出风风道。1. Suction module, 2. Fan module, 3. Kill filter module, 31, Primary filter module, 32, High voltage electrostatic module, 33, Activated carbon module, 34, High efficiency module, 4. Air storage box, 5. Air outlet module 6, main control module, 7, touch screen, 8, detection module, 10, rack body, 11, air inlet, 12, first air outlet, 13, second air outlet, 14, third air outlet, 15, Guiding grid, 20, fan, 51, first air duct, 52, second air duct, 53, third air duct.
具体实施方式Detailed ways
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其它实施例，都属于本发明保护的范围。In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
如图1所示，本发明实施例提供一种风帘***，包括吸风模块1、风机模块2、消杀过滤模块3、储风箱4以及出风模块5，风机模块2的进口与吸风模块1相连通，风机模块2的出口与出风模块5相连通，储风箱4设于风机模块2与出风模块5之间，消杀过滤模块3设于储风箱4与风机模块2之间，相邻两个模块之间通过气流通道相连通。基于上述结构，风机20提供风源，使吸风模块1和出风模块5形成正负压差，携带病菌的空气由此被吸风模块1吸入，然后进入消杀过滤模块3进行消毒杀菌处理，变为洁净的空气，再进入储风箱4蓄存，最后从出风模块5吹出，形成一道能够隔断人与人之间呼吸气流传播路径的正压风帘，从而实现降低病菌传播、防止产生交叉感染的功能。当然，消杀过滤模块3也可设于吸风模块1与风机模块2之间，其同样能够对吸入的空气进行消毒杀菌处理。As shown in FIG. 1, an embodiment of the present invention provides an air curtain system, which includes an air suction module 1, a fan module 2, a kill filter module 3, an air storage box 4, and an air outlet module 5, and an inlet and an air suction of the fan module 2. Module 1 is connected. The outlet of fan module 2 is connected to air outlet module 5. The air storage box 4 is located between fan module 2 and air outlet module 5. The kill filter module 3 is located between air storage box 4 and fan module 2. , Two adjacent modules communicate with each other through an airflow channel. Based on the above structure, the fan 20 provides a wind source, so that the suction module 1 and the outlet module 5 form a positive and negative pressure difference. The air carrying bacteria is sucked by the suction module 1 and then enters the kill filter module 3 for disinfection and sterilization. It becomes clean air, and then enters the air storage box 4 for storage, and finally blows out from the air outlet module 5 to form a positive pressure air curtain that can block the transmission path of breathing air flow between people, so as to reduce the spread of germs and prevent the occurrence of Cross infection function. Of course, the kill filter module 3 may also be provided between the suction module 1 and the fan module 2, which can also perform disinfection and sterilization on the sucked air.
进一步地，由于从风机模块2出来的气流直接通过出风模块5吹出易出现气流紊乱、出风不均匀等状况，影响风帘的形成或隔断的效果，因此，在风机模块2与出风模块5之间设有保证一定的风压的储风箱4能够解决上述问题。具体地，储风箱4的出口设于储风箱4的顶部，且储风箱4的进口低于储风箱4的出口，消毒杀菌后的洁净空气由储风箱4的进口进入储风箱4后不会立即通过出风模块5吹出，而是逐渐蓄存，直至充满整个储风箱4，然后再从储风箱4的出口自然溢出，最后通过出风模块5吹出，基于此，储风箱4的设置能够保证出风模块5持续均匀地吹出足够压力的风帘，确保人与人之间的呼吸气流传播路径被完全隔断，彻底杜绝病菌传播和产生交叉感染的风险。Further, since the airflow from the fan module 2 is directly blown out through the air outlet module 5, conditions such as disordered airflow and uneven air outlet are prone to affect the formation or blocking effect of the air curtain. Therefore, the airflow between the fan module 2 and the air outlet module An air storage tank 4 is provided between 5 to ensure a certain wind pressure, which can solve the above problems. Specifically, the outlet of the air storage box 4 is provided on the top of the air storage box 4, and the inlet of the air storage box 4 is lower than the outlet of the air storage box 4. The clean air after sterilization and sterilization will not immediately enter the air storage box 4 from the air storage box 4 inlet. It is blown out by the air outlet module 5, but is gradually stored until it fills the entire air storage box 4, then overflows naturally from the outlet of the air storage box 4, and finally blows out through the air outlet module 5. Based on this, the setting of the air storage box 4 can ensure the output The wind module 5 continuously and uniformly blows out a wind curtain with sufficient pressure to ensure that the respiratory airflow transmission path between people is completely blocked, completely eliminating the risk of germ transmission and cross infection.
再进一步地，如图1所示，风帘***还包括有主控模块6和触摸屏7，风机模块2和触摸屏7均与主控模块6电连接，基于此，使用者通过触摸屏7对主控模块6发出指令，再由主控模块6操控风机模块2，实现风机模块2的启停、定时、档位调节等功能。此外，风帘***还包括有与主控模块6电连接的检测模块8，检测模块8用于检测空气中的PM2.5和二氧化碳值等数据并传输至主控模块6，主控模块6再将检测数据显示在触摸屏7上，便于使用者实时监测环境中的空气质量。Further, as shown in FIG. 1, the air curtain system further includes a main control module 6 and a touch screen 7. Both the fan module 2 and the touch screen 7 are electrically connected to the main control module 6. Based on this, the user controls the main control through the touch screen 7. The module 6 issues a command, and then the main control module 6 controls the fan module 2 to realize functions such as start and stop, timing, and gear adjustment of the fan module 2. In addition, the air curtain system also includes a detection module 8 electrically connected to the main control module 6. The detection module 8 is used to detect data such as PM2.5 and carbon dioxide value in the air and transmit it to the main control module 6. The main control module 6 then The detection data is displayed on the touch screen 7 so that the user can monitor the air quality in the environment in real time.
更进一步地，如图1所示，消杀过滤模块3包括初滤模块31、高压静电模块32、活性炭模块33以及高效模块34。另外，为了便于风帘的形成，进一步提高隔断效果，出风模块5一般采用条形出风槽，并且，根据实际的应用情况，条形出风槽的走向可设计成各种形状，例如一字形、L形、U形等。Furthermore, as shown in FIG. 1, the kill filter module 3 includes a primary filter module 31, a high-voltage electrostatic module 32, an activated carbon module 33, and a high-efficiency module 34. In addition, in order to facilitate the formation of the air curtain and further improve the partition effect, the air outlet module 5 generally uses a strip-shaped air outlet groove, and according to the actual application situation, the direction of the strip-shaped air outlet groove can be designed into various shapes, such as Z-shaped, L-shaped, U-shaped, etc.
如图2至图3所示，本发明实施例还提供一种采用上述风帘***的隔离防护装置，包括机架主体10、风机20、杀菌过滤单元(图未示)以及储风箱4，风机20、杀菌过滤单元以及储风箱4设于机架主体10的内部，且风机20的进口与杀菌过滤单元相连通，风机20的出口与储风箱4的入口相连通；机架主体10的两侧设有与风机20的进口相连通的吸风口11，杀菌过滤单元连通于吸风口11与风机20的进口之间；机架主体10内设有沿机架主体10的长度方向布置的第一出风风道51，第一出风风道51与储风箱4的出口相连通，且机架主体10的顶部设有与第一出风风道51相对应的第一出风口12。显然，风机20相当于风帘***中的风机模块2，杀菌过滤单元相当于风帘***中的消杀过滤模块3，第一出风风道51相当于风帘***中的出风模块5，吸风口11相当于风帘***中的吸风模块1。基于上述结构，风机20用于在机架主体10内部形成正负压差，吸风口11将环境中的空气吸入并通过杀菌过滤单元处理，然后蓄存入储风箱4内，待储风箱4充满洁净的空气后，最终通过第一出风风道51持续均匀地吹出，形成一道隔断隔离对象与保护对象之间呼吸气流传播路径的正压风帘，达到降低病菌传播、防止产生交叉感染的目的。As shown in FIG. 2 to FIG. 3, an embodiment of the present invention further provides an isolation and protection device using the air curtain system, including a frame body 10, a fan 20, a sterilization filter unit (not shown), and an air storage box 4. 20. The sterilization filter unit and the air storage box 4 are arranged inside the rack body 10, and the inlet of the fan 20 is connected to the sterilization filter unit, and the outlet of the fan 20 is connected to the inlet of the air storage box 4; both sides of the rack body 10 An air inlet 11 is provided, which is in communication with the inlet of the fan 20, and the sterilization filter unit is connected between the air inlet 11 and the inlet of the fan 20. The main body 10 has a first outlet arranged along the length direction of the main body 10. The air duct 51, the first air duct 51 is communicated with the outlet of the air storage box 4, and a first air outlet 12 corresponding to the first air duct 51 is provided on the top of the rack body 10. Obviously, the fan 20 is equivalent to the fan module 2 in the air curtain system, the sterilization filter unit is equivalent to the kill filter module 3 in the air curtain system, and the first outlet air duct 51 is equivalent to the air outlet module 5 in the air curtain system. The air inlet 11 corresponds to the air suction module 1 in the air curtain system. Based on the above structure, the fan 20 is used to form a positive and negative pressure difference inside the rack body 10, and the air inlet 11 sucks in the ambient air and processes it through the sterilization filter unit, and then stores it in the air storage box 4 until the air storage box 4 is full. After the clean air, it is finally blown out uniformly through the first outlet air duct 51, forming a positive pressure air curtain that cuts off the respiratory air flow path between the isolation object and the protection object, thereby reducing the spread of germs and preventing cross infection. .
具体地，如图2至图3所示，以该机架主体10上靠近隔离对象的一侧作为前端，靠近保护对象的一侧则为后端，第一出风风道51设置于机架主体10的顶部并与机架主体10的长边相平行，且第一出风风道51为靠近机架主体10的前端进行布置，以便于其吹出的隔离风帘能够对隔离对象呼出的携带病菌的空气进行及时有效的阻隔。储风箱4设置于风机20出口与第一出风风道51之间，从而能够保证第一出风风道51持续均匀地吹出足够压力的风帘，加强隔断效果，确保隔离对象与保护对象之间的呼吸气流传播路径被完全隔断，以彻底杜绝病菌传播和产生交叉感染的风险。在机架主体10的左、右两侧面上分别设置有吸风口11，吸风口11与风机20的进风口相连通，且杀菌过滤单元设置于吸风口11与风机20的进口之间，借助风机20在机架主体10内部形成的负压，外部的空气能够持续不断的从吸风口11处被吸入，其中包括由隔离对象呼出的携带病菌的空气，空气通过吸风口11被吸入后直接进入到杀菌过滤单元中进行快速有效的净化，重新转化为洁净的空气，这些洁净的空气被源源不断的输送至风机20处，并最终从第一出风风道51正压输出，以形成隔离风帘，实现环境内空气的循环利用和不断净化。由此，空气净化与风帘隔断组成的双重手段不仅避免了人与人交流过程中出现的交互感染现象，更有效地防止了病菌的传播，进一步提高了隔离的安全性。Specifically, as shown in FIG. 2 to FIG. 3, the side of the rack body 10 that is close to the isolation object is used as the front end, and the side that is close to the protection object is the rear end. The first air outlet duct 51 is provided on the rack. The top of the main body 10 is parallel to the long side of the rack main body 10, and the first air outlet air duct 51 is arranged near the front end of the rack main body 10, so that the isolation wind curtain blown out can carry the object being exhaled. The air of germs is blocked in a timely and effective manner. The air storage box 4 is arranged between the outlet of the fan 20 and the first air outlet channel 51, so as to ensure that the first air outlet channel 51 continuously and uniformly blows out a sufficient pressure wind curtain to strengthen the partition effect and ensure the isolation and protection objects. The respiratory airflow transmission path is completely blocked to completely eliminate the risk of germ transmission and cross infection. The left and right sides of the main frame body 10 are respectively provided with air inlets 11, the air inlets 11 are connected to the air inlet of the fan 20, and the sterilization filter unit is provided between the air inlet 11 and the inlet of the fan 20, 20 Negative pressure formed inside the main body 10 of the rack, external air can be continuously sucked from the air inlet 11 including germ-bearing air exhaled by the isolation object, and the air is directly sucked into the air inlet 11 through the air inlet 11 The sterilization filter unit is quickly and effectively purified and re-converted into clean air. The clean air is continuously transported to the fan 20, and is finally output from the first air outlet 51 with positive pressure to form an isolated air curtain. To achieve the recycling and continuous purification of air in the environment. Therefore, the dual means of air purification and air curtain partitioning not only avoids the phenomenon of cross infection in the process of human-to-human communication, but also more effectively prevents the spread of germs and further improves the safety of isolation.
另外，杀菌过滤单元包括依次相连接的初效滤网、高压静电滤网、活性炭滤网以及高效滤网，吸风口11与初效滤网相连通，高效滤网与风机20的进口相连通，由吸风口11处被吸入的隔离对象呼出的可能携带病毒和细菌的气体依次经过初效滤网、高压静电滤网、活性炭滤网以及高效滤网后输入到风机20中。基于上述多重消杀环节，杀菌过滤单元能够对空气进行高效可靠的净化，确保净化工作的质量。In addition, the sterilization filter unit includes a primary effect filter, a high-voltage electrostatic filter, an activated carbon filter, and a high-efficiency filter connected in order. The air inlet 11 is connected to the primary effect filter, and the high-efficiency filter is connected to the inlet of the fan 20. Gases that may carry viruses and bacteria exhaled from the isolated object being sucked in at the air inlet 11 pass through the primary effect filter, the high-voltage electrostatic filter, the activated carbon filter, and the high-efficiency filter, and then enter the fan 20. Based on the above-mentioned multiple killing links, the sterilizing and filtering unit can efficiently and reliably purify the air and ensure the quality of the purification work.
进一步地，如图2至图3所示，机架主体10内设有第二出风风道52，第二出风风道52沿机架主体10的宽度方向布置，且第二出风风道52的第一端部与第一出风风道51的端部相连通；机架主体10的顶部设有与第二出风风 道52相对应的第二出风口13，第二出风口13的第一端与第一出风口12的一端相连通。优选的，本实施例中第二出风风道52的数量设为两条，两条第二出风风道52分别连通于第一出风风道51的两端部处，且第二出风风道52与第一出风风道51相互垂直布置，在机架主体10的内形成U形出风风道；相对应的是，第二出风口13的数量也设为两个，且两个第二出风口13与第一出风口12组成U形的出风口。由此第二出风风道52吹出的风帘能够与第一出风风道51吹出的风帘相互拼接形成封闭性更好的防护空间，以对保护对象提供更好的保护。在此基础上，机架主体10内还设有沿竖直方向布置的第三出风风道53，第三出风风道53的上端部与第二出风风道52的第二端部相连通；机架主体10朝向保护对象的侧面设有与第三出风风道53相对应的第三出风口14，第三出风口14的上端与第二出风口13的第二端相连通。优选的，本实施例中第三出风风道53的数量同样设为两条，第三出风口14同样设为两个。由此第一出风风道51、第二出风风道52和第三出风风道53分别吹出的正压风帘能够为保护对象提供一个封闭性更高的空间，为保护对象提供高质量的防护工作，第二出风风道52和第三出风风道53的存在还能够在一定程度上减少由于第一出风风道51的送风角度过大而为保护对象带来的风险，提高整个隔离防护装置的可靠性。Further, as shown in FIG. 2 to FIG. 3, the rack main body 10 is provided with a second air outlet duct 52, the second air outlet duct 52 is arranged along the width direction of the rack body 10, and the second air outlet duct The first end of the duct 52 is in communication with the end of the first air outlet duct 51; the top of the rack body 10 is provided with a second air outlet 13 and a second air outlet corresponding to the second air duct 52 The first end of 13 is in communication with one end of the first air outlet 12. Preferably, in this embodiment, the number of the second air outlet ducts 52 is set to two, and the two second air outlet ducts 52 are respectively connected to both ends of the first air outlet duct 51, and the second air outlet ducts 52 The air duct 52 and the first air duct 51 are arranged perpendicular to each other, forming a U-shaped air duct in the rack body 10; correspondingly, the number of the second air outlets 13 is also set to two, and The two second air outlets 13 and the first air outlet 12 form a U-shaped air outlet. Therefore, the air curtain blown out by the second air outlet air duct 52 and the air curtain blown out by the first air outlet air duct 51 can be spliced with each other to form a better closed protective space, so as to provide better protection for the protection object. On this basis, the rack main body 10 is further provided with a third air outlet duct 53 arranged in a vertical direction, an upper end portion of the third air outlet duct 53 and a second end portion of the second air outlet duct 52. Communication; the side of the rack body 10 facing the protection object is provided with a third air outlet 14 corresponding to the third air outlet 53, and the upper end of the third air outlet 14 is in communication with the second end of the second air outlet 13 . Preferably, in this embodiment, the number of the third air outlet ducts 53 is also set to two, and the third air outlet 14 is also set to two. As a result, the positive air curtains blown out by the first, second, and third air outlet channels 51, 52, and 53 respectively can provide a more closed space for the protected object, and provide a high degree of protection for the protected object. Quality protection work, the existence of the second air outlet duct 52 and the third air outlet duct 53 can also reduce to a certain extent the protection objects caused by the excessive air supply angle of the first air outlet duct 51. Risk to improve the reliability of the entire isolation protection device.
更进一步的，如图2所示，储风箱4的入口位于其侧部，储风箱4的出口位于其顶部，由此，待储风箱4中的洁净空气蓄存满后，空气自动地通过第一出风风道向左右两侧的第二出风风道52以及第三出风风道53进行均匀的分流，从而保证第一出风口12、第二出风口13以及第三出风口14吹出的风帘强度均匀，以提高隔断效果。优选的，储风箱4选择为Y漏斗形结构，且储风箱4的出口的长度与第一出风风道51的长度相等，因此，Y漏斗形状的设计有效地减小了空气的阻力，使得空气能够平稳地过渡到第一出风风道51中，由此保证空气流通的顺畅性。但在其他实施例中，储风箱4的结构形状设计并不受本实施例的限制，当可按照实际的需要，选择合适的储风箱4 形状类型。储风箱4上还设有消音装置，能够减小储风箱4在工作过程中产生的噪音，为使用者提供更好的体验，以达到较好的使用效果。Furthermore, as shown in FIG. 2, the inlet of the air storage box 4 is located on its side, and the outlet of the air storage box 4 is located on its top. Therefore, after the clean air in the air storage box 4 is stored, the air automatically passes through the first One air outlet duct is evenly divided to the second air outlet duct 52 and the third air outlet duct 53 on the left and right sides, thereby ensuring that the first air outlet 12, the second air outlet 13, and the third air outlet 14 are blown out. The strength of the air curtain is uniform to improve the partition effect. Preferably, the air storage box 4 is selected as a Y funnel-shaped structure, and the length of the outlet of the air storage box 4 is equal to the length of the first air outlet duct 51. Therefore, the design of the Y funnel shape effectively reduces the resistance of the air, so that The air can smoothly transition into the first air outlet duct 51, thereby ensuring the smoothness of air circulation. However, in other embodiments, the structural shape design of the air storage box 4 is not limited by this embodiment. When an actual type of the air storage box 4 can be selected according to actual needs. The air storage box 4 is also provided with a noise reduction device, which can reduce the noise generated during the work of the air storage box 4 and provide a better experience for the user to achieve a better use effect.
为了证明储风箱4的确具有提高风帘均匀性的作用，本实施例中的隔离防护装置进行了出风情况检测试验，具体试验过程如下：In order to prove that the air storage box 4 does have the effect of improving the uniformity of the air curtain, the isolation and protection device in this embodiment performs a test for detecting the air condition. The specific test process is as follows:
参见图4和图5，分别为试验过程中对第一出风风道51和左右两侧的第二出风风道52上进行检测的各测试点的位置示意图以及第三出风风道53上的用于进行检测的各测试点的位置示意图，具体试验数据如下表1和表2统计所示：Referring to FIG. 4 and FIG. 5, positions of the test points and the third air outlet 53 on the first air outlet 51 and the left and right second air outlets 52 during the test are shown, respectively. The schematic diagram of the location of each test point on the test for testing, the specific test data is shown in the statistics in Tables 1 and 2 below:
表1为第一出风风道51、左侧第二出风风道52以及左侧第三出风风道53各测试点处的试验数据；Table 1 shows the test data at each test point of the first air outlet duct 51, the second air outlet duct 52 on the left side, and the third air outlet duct 53 on the left side;
表1Table 1
Figure PCTCN2018111294-appb-000001
Figure PCTCN2018111294-appb-000001
表2为第一出风风道51、右侧第二出风风道52以及右侧第三出风风道53各测试点处的试验数据；Table 2 shows the test data at each test point of the first air outlet duct 51, the right second air outlet duct 52, and the right third air outlet duct 53;
表2Table 2
Figure PCTCN2018111294-appb-000002
Figure PCTCN2018111294-appb-000002
根据以往多次的风帘风速试验，未安装储风箱4时，各出风风道的风速极差在1.5m/s～2.0m/s之间，通过观察上述试验数据可知，安装储风箱4后，隔离防护装置的各出风风道处的风速极差有了明显的减小，即各出风风道能够形成一道强度均匀的隔断风帘，由此可以得出结论：储风箱4具有提高风帘均匀性的作用。According to the wind curtain wind speed test for many times in the past, when the air storage tank 4 is not installed, the wind speed difference of each air outlet duct is between 1.5m / s and 2.0m / s. By observing the above test data, we can know that the air storage tank 4 is installed. After that, the wind speed difference between the air outlet ducts of the isolation protection device has been significantly reduced, that is, each air outlet duct can form a partition wind curtain with uniform strength, and it can be concluded that the air storage box 4 has The effect of improving the uniformity of the air curtain.
更进一步的，本实施例中的隔离防护装置同样设有主控模块6、检测模块8以及触摸屏7，且检测模块8、触摸屏7以及风机20与主控模块6电连接。其中，检测模块8用于检测空气中的PM2.5和二氧化碳值等数据；触摸屏7用于对主控模块6发出指令，控制风机20的启停、定时和档位调节。Furthermore, the isolation and protection device in this embodiment is also provided with a main control module 6, a detection module 8, and a touch screen 7, and the detection module 8, the touch screen 7, and the fan 20 are electrically connected to the main control module 6. Among them, the detection module 8 is used to detect data such as PM2.5 and carbon dioxide value in the air; the touch screen 7 is used to send instructions to the main control module 6 to control the start, stop, timing and gear adjustment of the fan 20.
再进一步的，如图6至图7所示，风帘的倾斜角度直接影响风帘的隔断效果，因此，本实施例中的第一出风口12设有使风帘向隔离对象所在侧倾斜的导风格栅15。但是，若风帘的倾斜角度过小，则无法起到提高隔断效果的作用；若倾斜角度过大，则风帘容易被隔离对象呼出的气流越过，根本达不到隔断的效果，因此，导风格栅15的导向角度设计十分重要。同样的，风帘的送风速度也对风帘的隔断效果具有非常重要的影响。Furthermore, as shown in FIG. 6 to FIG. 7, the inclination angle of the air curtain directly affects the blocking effect of the air curtain. Therefore, the first air outlet 12 in this embodiment is provided with an air curtain that inclines the air curtain to the side of the isolation object.导 StyleGrid 15. However, if the inclination angle of the air curtain is too small, it will not be able to improve the partition effect; if the inclination angle is too large, the air curtain will be easily passed by the airflow exhaled by the isolation object, and the partition effect will not be achieved at all. The design of the guide angle of the wind grille 15 is very important. Similarly, the air supply speed of the air curtain also has a very important influence on the partition effect of the air curtain.
为此，本实施例中的隔离防护装置进行了CFD(Computational Fluid Dynamics)仿真模拟，具体模拟过程如下：For this reason, the isolation and protection device in this embodiment performs CFD (Computational Fluid Dynamics) simulation. The specific simulation process is as follows:
通过CFD模拟技术，对利用气流的隔离防护装置的隔断效果进行研究，并得出不同参数对隔断效果的影响，主要包括：风帘出风口的速度、送风角度。并从这两个方面对隔离防护装置的优化设计提出了改进建议。在本模拟的条件设置下，隔离防护装置位于房间中央，保护对象和隔离对象连线的中点为房间的中心点。几何模型中的相关参数，包括隔离防护装置尺寸、送回风口的尺寸和位置均按照实际产品的已知参数建立，并进行了合理的简化。考虑到风帘的主要作用是对隔离对象呼出的病原性微生物气溶胶进行隔离，故在本模拟中对隔离对象和保护对象在实际情况下同时呼吸的状态作了一定的简化，重点研究了隔离对象呼气、保护对象吸气的情况。Through CFD simulation technology, the blocking effect of the isolation protection device using airflow is studied, and the influence of different parameters on the blocking effect is obtained, including: the speed of the air curtain outlet, and the angle of the air supply. From these two aspects, suggestions for improving the optimal design of the isolation protection device are put forward. Under the conditions of this simulation, the isolation protection device is located in the center of the room, and the midpoint of the line between the protection object and the isolation object is the center point of the room. Relevant parameters in the geometric model, including the size of the isolation guard, the size and position of the return air outlet, are established in accordance with the known parameters of the actual product, and reasonably simplified. Considering that the main function of the air curtain is to isolate the pathogenic microbial aerosols exhaled by the isolation object, in this simulation, the state of the isolated object and the protected object breathing at the same time under certain conditions is simplified, and the isolation is emphasized. Subject exhales and protects the subject from inhaling.
CFD模型的建立以及边界条件的设置，先确定几何模型如表3所示：To establish the CFD model and set the boundary conditions, first determine the geometric model as shown in Table 3:
表3几何模型尺寸Table 3 Geometric model dimensions
Figure PCTCN2018111294-appb-000003
Figure PCTCN2018111294-appb-000003
再设置模拟条件，参见表4所述：Then set the simulation conditions, see Table 4:
表4模拟条件设置Table 4 Simulation condition settings
Figure PCTCN2018111294-appb-000004
Figure PCTCN2018111294-appb-000004
Figure PCTCN2018111294-appb-000005
Figure PCTCN2018111294-appb-000005
其中，注：送风角度θ指机架主体10顶部的第一出风风道51的送风方向与其法线方向的夹角(°)(偏向隔离对象方向)。模拟过程中用示踪气体代表隔离对象呼出的气体成分，所计算的组分图均指的是示踪气体的摩尔分数分布图。Note: The air supply angle θ refers to the included angle (°) between the air supply direction of the first air outlet duct 51 on the top of the rack body 10 and its normal direction (biased to the isolation target direction). During the simulation, the tracer gas is used to represent the gas components exhaled by the isolation object. The calculated component diagrams refer to the mole fraction distribution of the tracer gas.
首先，以Scenario 0、1(Case 0，1，2，3)，研究不同风速对隔断效果的影响，具体试验过程如下：First, with Scenario 0, 1 ( Case 0, 1, 2, 3), the effect of different wind speeds on the partition effect is studied. The specific test process is as follows:
参见图8，以Case 0作为对照组，设为机架主体10无风帘。隔离对象呼出的气流被自己头顶产生的热羽流所卷吸，向头顶上升，同时也向一侧墙壁偏移。在相同的房间通风***下，无风帘的换气次数小于有风帘的换气次数，因此Case 0的换气次数较小，污染物停留时间较长。因没有风帘阻隔，隔离对象的气流可能会在房间各处盘旋，导致保护对象嘴巴附近的示踪气体浓度较高(能达到其他Case的几倍)，并且保护对象的暴露时间也较长。因此，设置风帘来降低保护对象的感染风险的做法是十分有效的。Referring to FIG. 8, Case 0 is used as a control group, and it is assumed that the frame body 10 has no air curtain. The airflow exhaled by the isolation object is sucked up by the thermal plume generated from the top of the head, and rises to the top of the head, and at the same time, it is offset to the wall on one side. Under the same room ventilation system, the number of ventilations without a curtain is less than the number of ventilations with a curtain, so Case 0 has a smaller number of ventilations and a longer pollutant residence time. Because there is no air curtain blocking, the airflow of the isolated object may circle around the room, resulting in a high concentration of tracer gas near the mouth of the protected object (which can reach several times of other Cases), and the exposed time of the protected object is also longer. Therefore, it is very effective to set a wind curtain to reduce the risk of infection of the protection object.
参见图9，在Case 1的情况下，由于风帘的送风速度不高，隔离对象呼出的污染物可以很容易越过风帘，从高处(靠近天花板位置)向保护对象侧移动，风帘的隔离作用无法得到保障。这是由于风帘的送风角度竖直向上，且速度不高，较弱的送风气流在喷出后不久便受到隔离对象呼出气流的卷吸作用，使得风帘的送风气流略微偏向隔离对象侧。且由于隔离对象呼出气体 的密度大于空气，污染物有机会下沉，并有可能绕过机架主体10底部和侧面而到达保护对象的呼吸区。具体的感染风险还与污染物种类、暴露时间、感染阈值等因素有关。因此在这种情况下，虽然风帘在近机架主体10的表面上有一定的作用，但作用有限，应加大隔离防护装置的送风风速，进一步阻隔两人之间的气流交换。Referring to Figure 9, in the case of Case 1, because the air supply speed of the air curtain is not high, the pollutants exhaled by the isolation object can easily pass through the air curtain and move from the high position (close to the ceiling) to the side of the protection object. The isolation effect cannot be guaranteed. This is because the air supply angle of the air curtain is vertically upward and the speed is not high. The weak air supply air is entrained by the exhaled air of the isolation object shortly after being ejected, which makes the air supply air flow of the air curtain slightly biased toward the isolation. Object side. And because the density of the exhaled gas of the isolation object is greater than that of air, the pollutants have a chance to sink and may bypass the bottom and sides of the frame body 10 and reach the breathing zone of the protection object. Specific infection risks are also related to factors such as the type of pollutant, exposure time, and infection threshold. Therefore, in this case, although the air curtain has a certain effect on the surface of the near-frame main body 10, the effect is limited. The supply air speed of the isolation protection device should be increased to further block the air flow exchange between the two persons.
参见图10，在Case 2中，风帘的送风速度加大到3m/s。此时，送风气流形成了比较完整的风帘，左边隔离对象的污染物基本被阻挡在风帘左边，只有少数能逃逸到风帘右边。呼出气流偏向送风气流，这是由于送风气流的速度较大，对隔离对象呼出气流有较强的卷吸作用而导致；另一方面，较冷的送风气流在房间内四散，甚至在房间中上部形成了一定的温度分层(上热-中上冷-中下热)，破坏了热羽流。Referring to FIG. 10, in Case 2, the air supply speed of the air curtain is increased to 3 m / s. At this time, the supply air flow formed a relatively complete wind curtain, and the pollutants on the left of the isolation object were basically blocked on the left side of the curtain, and only a few could escape to the right side of the curtain. The exhaled air flow is biased toward the supply air flow. This is due to the high speed of the supply air flow and the strong entrainment effect on the object's exhaled air flow. On the other hand, the cooler supply air flow is scattered in the room, even in the room. A certain temperature stratification was formed in the upper and middle part of the room (upper heat-middle upper and lower cold-middle and lower heat), which destroyed the thermal plume.
参见图11，在Case 3中，风帘的送风速度加大到4m/s的情况。此时，强化的风帘能够完全隔离两人，这是由于较冷且速度较高的送风气流直接冲向天花板，从而在保护对象和隔离对象之间筑成一道有力的“风帘屏障”。在这种情况下，污染物到达保护对象呼吸区的机会更小了，一般在到达保护对象侧之前就能被隔离防护装置两侧的回风口排走。但是，从模拟过程中可以得出，隔离对象呼出气体在保护对象头顶上方天花板区域的平均浓度反而高于Case 2中风帘的送风速度为3m/s的情况，又增加了对保护对象呼吸区域污染的风险。这是由于速度较高的气流对隔离对象呼出气体的卷吸作用更强，则其混合气体的密度与周围空气的密度差值越大，越容易在保护对象侧发生下沉。所以送风速度不是越大越好。Referring to FIG. 11, in Case 3, the air supply speed of the wind curtain is increased to 4m / s. At this time, the reinforced air curtain can completely separate the two people. This is because the cooler and higher speed air supply rushes directly to the ceiling, thus creating a powerful "wind curtain barrier" between the protected object and the isolated object. . In this case, the chance of the pollutants reaching the breathing zone of the protected object is even smaller, and generally it can be discharged by the return air vents on both sides of the isolation protection device before reaching the protected object side. However, from the simulation process, it can be concluded that the average concentration of the exhaled air of the isolated object in the ceiling area above the head of the protected object is higher than the case where the air supply speed of the Case 2 stroke curtain is 3m / s, which increases the breathing area of the protected object. Risk of pollution. This is because the higher-speed airflow has a stronger entrainment effect on the exhaled gas of the isolation object, and the larger the difference between the density of the mixed gas and the surrounding air density, the easier it is for the protection object to sink. Therefore, the larger the air velocity is, the better.
紧接着，以上述风速试验得出的较佳风速3m/s为基础，进一步比较Scenario 5(Case 2，5，8)，研究不同送风角度对隔离对象呼出污染物轨迹的影响，具体试验过程如下：参见图12至图13，Case 5为在Case 2的基础上将送风角度调整为20°，由机架主体10的第一出风风道51射出的冷气流可以有效地将隔离对象的呼出气体控制在隔离对象身后的一个小区域里，不容 易抵达保护对象呼吸区，从而达到压制污染物传播的目的。保护对象周围的气流不受风帘的直接影响，其热羽流能正常发展。这种情况能较好地阻隔隔离对象和保护对象之间的气流交互，可以减小实际环境中的气溶胶感染风险。Then, based on the better wind speed of 3m / s obtained from the above wind speed test, further compare Scenario 5 ( Case 2, 5, 8), and study the effect of different air supply angles on the trajectory of pollutants exhaled by the isolated object. The specific test process As shown in Figures 12 to 13, Case 5 adjusts the air supply angle to 20 ° on the basis of Case 2. The cold air from the first air outlet 51 of the rack body 10 can effectively isolate the object Exhaled gas is controlled in a small area behind the isolated object, and it is not easy to reach the breathing area of the protected object, so as to suppress the spread of pollutants. The airflow around the object is protected from the direct influence of the wind curtain, and its thermal plume can develop normally. This situation can better block the airflow interaction between the isolated object and the protected object, and can reduce the risk of aerosol infection in the actual environment.
参见图14，Case 8将风帘送风方向再次向隔离对象侧倾斜，送风角度调整为40°，隔离对象和保护对象之间的气流是自由连通的，保护对象嘴巴呼吸区域的示踪气体浓度较高，风帘形同虚设。这是由于此时风帘的送风角度太低，送风气流极易受到隔离对象呼出气流的吸引，甚至被温度较高的隔离对象呼出气流压制在其下方，送风气流将直接抵达隔离对象嘴巴下方，使得隔离对象呼出气流则可以直接越过送风气流而往保护对象区域***。但与此同时，由于机架主体10的短边风口的作用又对隔离对象呼出气流的运动起到了一定的干扰和压制，使得隔离对象呼出气流最终偏离保护对象方向运动而回到隔离对象身后。Referring to Figure 14, Case 8 tilts the direction of the air curtain to the side of the isolation object again, and the air supply angle is adjusted to 40 °. The air flow between the isolation object and the protection object is freely connected, and the tracer gas in the breathing area of the protection object's mouth The density is higher, and the wind curtain is the same. This is because at this time, the air supply angle of the air curtain is too low, and the air supply airflow is very easy to be attracted by the exhaled airflow of the isolation object. It is even suppressed by the exhaled airflow of the high-temperature isolation object below it, and the airflow will directly reach the isolation object. Below the mouth, the exhaled airflow of the isolated object can directly move over the airflow and move freely to the protected object area. However, at the same time, the short-side air vent of the rack body 10 interferes and suppresses the movement of the exhaled airflow of the isolated object to a certain extent, so that the exhaled airflow of the isolated object moves away from the direction of the protected object and returns to the back of the isolated object.
综上所述，纵观整个模拟过程，得到的结论是：In summary, looking at the entire simulation process, the conclusions are:
图15显示了不同功能参数(送风角度和送风风速)下，保护对象嘴巴附近的示踪气体摩尔分数情况，保护对象嘴巴附件的示踪气体摩尔分数代表的是隔离对象呼出的气体进入到保护对象嘴巴呼吸区域的比例。从结果上看，摩尔分数最低的是Case 3(送风角度0°，风速4m/s)的情况。但是由于在这种情况下，保护对象头顶上方的示踪气体平均浓度较高，增加了呼吸区域被污染的风险，故并不是最佳情况。Figure 15 shows the mole fraction of the tracer gas near the mouth of the protected object under different functional parameters (supply angle and air velocity). The mole fraction of the tracer gas attached to the mouth of the protector represents the exhaled gas entering the The proportion of breathing areas protected by the subject's mouth. From the results, the lowest mole fraction is the case of Case 3 (supply angle 0 °, wind speed 4m / s). However, in this case, the average concentration of the tracer gas above the head of the protected object is high, which increases the risk of contamination of the breathing area, so it is not the best case.
送风速度3m/s(Case 2,5,8)的隔断效果优于2m/s(Case 1,4,7)和4m/s(Case 3,6,9)的情况。原因是2m/s的送风速度形成的风帘强度不够，在靠近天花板的位置容易被隔离对象呼出气流穿破而导致隔离对象呼出气流的泄露进入保护对象侧；而4m/s的送风速度又会增强房间内气流的紊乱程度，从而加剧房间内空气的混合，导致隔离对象的呼出气流很有可能在整个房间内充满，且4m/s的送风速度可能造成隔离对象因为较高速度的出流而带来的吹风感，故3m/s较合适。当然，2m/s至4m/s之间均是本发明保护的 范围。The blocking effect of the supply air speed of 3m / s ( Case 2,5,8) is better than that of 2m / s ( Case 1,4,7) and 4m / s ( Case 3,6,9). The reason is that the air curtain formed by the air supply speed of 2m / s is not strong enough, and it is easy to be punctured by the exhaled airflow of the isolation object near the ceiling, causing the leakage of the exhaled airflow of the isolation object to enter the protection object side; and the airflow speed of 4m / s It will also increase the turbulence of airflow in the room, which will intensify the mixing of the air in the room, resulting in the exhaled airflow of the isolated object is likely to be filled in the entire room, and the 4m / s air supply speed may cause the isolated object to 3m / s is more suitable because of the air blowing feeling brought by the flow. Of course, between 2m / s and 4m / s is the protection scope of the present invention.
送风角度20°(Case 4,5,6)的隔断效果优于0°(Case 1,2,3)和40°(Case7,8,9)的情况。因为与0°相比，20°送风气流有一个向着隔离对象方向倾斜的作用面，对隔离对象的呼出气体有更好的压制作用，将污染物吹向隔离对象身后的空间；而40°的送风角度，由于气流倾斜太多，接近于隔离对象嘴巴高度，而在隔离对象呼出气流的卷吸作用下直接被呼出气流带到隔离对象嘴巴下方，不能起到阻挡隔离对象呼出气流的作用。但是，需要强调的是，送风角度设计为20°仅仅为最优选的角度，其正负5°所达到的效果虽然有所欠缺，但依然满足使用需求，因此，15°至25°之间均是本发明保护的范围。The blocking effect of the supply air angle of 20 ° ( Case 4, 5, 6) is better than that of 0 ° ( Case 1, 2, 3) and 40 ° ( Case 7, 8, 9). Because compared with 0 °, the 20 ° supply air stream has an active surface inclined toward the isolation object, which has a better suppression effect on the exhaled air of the isolation object and blows pollutants to the space behind the isolation object; and 40 ° The angle of the air supply is too close to the mouth of the isolation subject because the airflow is tilted too much, and it is taken directly under the mouth of the isolation subject under the entrainment of the exhalation airflow of the isolation subject, which cannot block the exhalation airflow of the isolation subject. . However, it should be emphasized that the air supply angle is designed to be 20 °, which is only the most preferred angle. Although the effect achieved by plus or minus 5 ° is not sufficient, it still meets the needs of use. Therefore, between 15 ° and 25 ° All are within the scope of the present invention.
风帘射流和人体热羽流的卷吸效应在模拟中得到了体现。不同风帘风速下，隔离对象呼出气体会受到不同卷吸作用的影响。以Case 2和Case3为例，当风帘风速较小时，人体热羽流产生的卷吸效应对隔离对象呼出气体的运动起主导作用，呼出气体被头顶的热羽流所捕获，并被加热上浮；当风帘风速较大时，风帘射流所产生的的卷吸效应起主导作用，隔离对象呼出气体会被卷入风帘并跟随风帘的送风气流一起运动，同时污染物也被风帘包围而得到控制，从而使得保护对象的感染风险得以降低。The entrainment effect of wind curtain jet and human thermal plume is reflected in the simulation. At different wind speeds, the exhaled air of an isolated object will be affected by different entrainment effects. Taking Case 2 and Case 3 as examples, when the wind speed of the wind curtain is small, the entrainment effect of the human body's thermal plume will dominate the movement of the exhaled gas of the isolated object, and the exhaled gas will be captured by the thermal plume above the head and heated to float. ; When the wind speed of the air curtain is large, the entrainment effect produced by the air curtain jet plays a leading role, and the exhaled air of the isolation object will be drawn into the air curtain and follow the air flow of the air curtain, and the pollutants are also affected by the wind. The curtain is surrounded and controlled, thereby reducing the risk of infection of the protected object.
最后，需要强调的是，本发明实施例提供的风帘***主要应用于医疗领域，例如，隔离防护装置可以作为诊台，以隔离医护人员与患者为考虑出发点，在医护人员与患者中间形成风帘作为阻隔，将携带或潜在携带传染病原体的气溶胶隔离在患者方，最大程度的保护医护人员。当然，该风帘***还可以应用于其他易发生交叉感染的公共场所，例如医院的隔离病区，用以隔离传染病患者与普通患者；或是实验室的防污染区，用以隔离实验物质与实验人员；抑或是公共交通工具内，用以隔离乘客与司机；又或是医院挂号窗口、车站售票窗口、银行柜台等，用以隔离工作人员与流动人群。Finally, it should be emphasized that the air curtain system provided by the embodiment of the present invention is mainly used in the medical field. For example, an isolation protection device can be used as a consultation table, taking the isolation of medical staff and patients as a starting point, and forming a wind between medical staff and patients. The curtain acts as a barrier to isolate aerosols carrying or potentially carrying infectious pathogens on the patient side, protecting medical personnel to the greatest extent. Of course, the air curtain system can also be applied to other public places prone to cross infection, such as the isolated ward of a hospital to isolate patients with infectious diseases from ordinary patients; or the anti-pollution area of a laboratory to isolate experimental substances. And laboratory personnel; or in public transportation to isolate passengers and drivers; or hospital registration windows, station ticket windows, bank counters, etc., to isolate staff and mobile people.
综上，本发明提供的一种风帘***主要包括吸风模块1、风机模块2、消杀过滤模块3、储风箱4以及出风模块5，风机模块2的进口与吸风模块1相 连通，风机模块2的出口与出风模块5相连通，储风箱4设于风机模块2与出风模块5之间，消杀过滤模块3设于储风箱4与风机模块2之间或吸风模块1与风机模块2之间，相邻两个模块之间通过气流通道相连通。跟现有技术相比，该风帘***能够将携带病菌的空气吸入并进行消毒杀菌处理，同时持续均匀地吹出足够压力的风帘，确保人与人之间的呼吸气流传播路径被完全隔断，彻底杜绝病菌传播和产生交叉感染的风险。In summary, the air curtain system provided by the present invention mainly includes an air suction module 1, a fan module 2, a kill filter module 3, an air storage box 4, and an air outlet module 5. The inlet of the fan module 2 is connected to the air suction module 1. The outlet of the fan module 2 is connected to the air outlet module 5. The air storage box 4 is located between the fan module 2 and the air outlet module 5. The kill filter module 3 is located between the air storage box 4 and the fan module 2 or the air suction module 1. It communicates with the fan module 2 and the two adjacent modules through an airflow channel. Compared with the prior art, the air curtain system can suck air carrying germs and perform disinfection and sterilization treatment, and at the same time, continuously and uniformly blow out the air curtain with sufficient pressure to ensure that the breathing air flow path between people is completely blocked. Completely eliminate the risk of germ transmission and cross infection.
此外，本发明还提供一种采用上述风帘***的隔离防护装置，该隔离防护装置通过完整的CFD模拟设计出最优的送风角度和送风速度，跟现有技术相比，其除了能够持续均匀地吹出足够压力的风帘以外，还具有最佳的隔断效果。In addition, the present invention also provides an isolation and protection device using the above-mentioned air curtain system. The isolation and protection device designs an optimal air supply angle and air supply speed through a complete CFD simulation. In addition to the continuous and uniform blowout of the air curtain, it has the best blocking effect.
应当理解的是，本发明中采用术语“第一”、“第二”等来描述各种信息，但这些信息不应限于这些术语，这些术语仅用来将同一类型的信息彼此区分开。例如，在不脱离本发明范围的情况下，“第一”信息也可以被称为“第二”信息，类似的，“第二”信息也可以被称为“第一”信息。It should be understood that the terms "first", "second", etc. are used in the present invention to describe various kinds of information, but the information should not be limited to these terms, these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the present invention, the "first" information may also be referred to as "second" information, and similarly, the "second" information may also be referred to as "first" information.
以上所述是本发明的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和变形，这些改进和变形也视为本发明的保护范围。The above is the preferred embodiment of the present invention. It should be noted that, for those of ordinary skill in the art, without departing from the principle of the present invention, a number of improvements and deformations can also be made. These improvements and deformations also depend on It is the protection scope of the present invention.

Claims (10)

  1. 一种风帘***，包括吸风模块、风机模块、消杀过滤模块、出风模块以及储风箱，所述风机模块的进口与所述吸风模块相连通，所述风机模块的出口与所述出风模块相连通，所述储风箱设于所述风机模块与所述出风模块之间，所述消杀过滤模块设于所述储风箱与所述风机模块之间或所述吸风模块与所述风机模块之间，相邻两个模块之间通过气流通道相连通。An air curtain system includes an air suction module, a fan module, a kill filter module, an air outlet module, and an air storage box. An inlet of the fan module is connected to the air suction module, and an outlet of the fan module is connected to the air module. The air outlet module is connected, the air storage box is provided between the fan module and the air outlet module, and the kill filter module is provided between the air storage box and the fan module or the air suction module and The fan modules are in communication with each other through two adjacent air modules.
  2. 根据权利要求1所述的风帘***，其中，所述储风箱的出口设于所述储风箱的顶部，所述储风箱的进口低于所述储风箱的出口。The air curtain system according to claim 1, wherein an outlet of the air storage box is provided on a top of the air storage box, and an inlet of the air storage box is lower than an outlet of the air storage box.
  3. 根据权利要求1所述的风帘***，其中，所述消杀过滤模块包括初滤模块、高压静电模块、活性炭模块以及高效模块。The air curtain system according to claim 1, wherein the kill filter module comprises a primary filter module, a high-voltage electrostatic module, an activated carbon module, and a high-efficiency module.
  4. 根据权利要求1所述的风帘***，其中，所述风帘***还包括有主控模块，所述风机模块与所述主控模块电连接。The air curtain system according to claim 1, wherein the air curtain system further comprises a main control module, and the fan module is electrically connected to the main control module.
  5. 根据权利要求4所述的风帘***，其中，所述风帘***还包括有与所述主控模块电连接的触摸屏以及检测模块。The air curtain system according to claim 4, wherein the air curtain system further comprises a touch screen and a detection module electrically connected to the main control module.
  6. 一种隔离防护装置，包括机架主体、风机、杀菌过滤单元以及储风箱，所述风机、所述杀菌过滤单元以及所述储风箱设于所述机架主体的内部，且所述风机的进口与所述杀菌过滤单元相连通，所述风机的出口与所述储风箱的入口相连通；An isolation and protection device includes a frame body, a fan, a sterilization filter unit, and an air storage box. The fan, the sterilization filter unit, and the air storage box are disposed inside the frame body, and an inlet of the fan Communicating with the sterilizing filter unit, and the outlet of the fan is communicating with the inlet of the air storage box;
    所述机架主体内设有沿所述机架主体的长度方向布置的第一出风风道，所述第一出风风道与所述储风箱的出口相连通，且所述机架主体的顶部设有与所述第一出风风道相对应的第一出风口；The rack main body is provided with a first air outlet duct arranged along a length direction of the rack main body, the first air outlet duct is communicated with an outlet of the air storage box, and the rack main body A first air outlet corresponding to the first air outlet air duct is provided on the top;
    所述机架主体的两侧设有与所述风机的进口相连通的吸风口，所述杀菌过滤单元连通于所述吸风口与所述风机的进口之间。The two sides of the main body of the rack are provided with air inlets connected to the inlet of the fan, and the sterilization filter unit is connected between the air inlet and the inlet of the fan.
  7. 根据权利要求6所述的隔离防护装置，其中，所述储风箱为Y漏斗形结构，所述储风箱的入口位于其侧部，所述储风箱的出口位于其顶部，且所述储风箱的出口的长度等于所述第一出风风道的长度。The isolation and protection device according to claim 6, wherein the air storage box is a Y-funnel structure, an inlet of the air storage box is located at a side portion thereof, an outlet of the air storage box is located at a top portion thereof, and the The length of the outlet is equal to the length of the first outlet air duct.
  8. 根据权利要求6所述的隔离防护装置，其中，所述机架主体内设有沿所述机架主体的宽度方向布置的第二出风风道，所述第二出风风道的第一端部与所述第一出风风道的端部相连通，所述机架主体的顶部设有与所述第二出风风道相对应的第二出风口，所述第二出风口的第一端与所述第一出风口的一端相连通；The isolation and protection device according to claim 6, wherein the rack main body is provided with a second air outlet duct arranged along a width direction of the rack main body, and the first air outlet duct of the second air outlet duct An end portion is in communication with an end portion of the first air outlet duct, and a second air outlet corresponding to the second air outlet duct is provided on the top of the rack body. The first end is in communication with one end of the first air outlet;
    所述机架主体内设有沿竖直方向布置的第三出风风道，所述第三出风风道的上端部与所述第二出风风道的第二端部相连通，所述机架主体朝向保护对象的侧面设有与所述第三出风风道相对应的第三出风口，所述第三出风口的上端与所述第二出风口的第二端相连通。A third air outlet duct is arranged in the vertical direction in the main body of the rack, and an upper end portion of the third air outlet duct is in communication with a second end portion of the second air outlet duct. A third air outlet corresponding to the third air outlet is provided on a side of the rack body facing the protection object, and an upper end of the third air outlet is in communication with a second end of the second air outlet.
  9. 根据权利要求6所述的隔离防护装置，其中，所述风帘的风速为2m/s至4m/s。The isolation protection device according to claim 6, wherein the wind speed of the air curtain is 2m / s to 4m / s.
  10. 根据权利要求6所述的隔离防护装置，其中，所述第一出风口设有使风帘向隔离对象所在侧倾斜的导风格栅，且所述风帘与所述第一出风风道的法线方向的夹角为15°至25°。The isolation and protection device according to claim 6, wherein the first air outlet is provided with a guide grid that inclines an air curtain toward a side of an isolation object, and the air curtain and the first air outlet duct The angle between the normal directions is 15 ° to 25 °.
PCT/CN2018/111294 2018-05-29 2018-10-22 Air curtain system and protective isolation device WO2019227830A1 (en)

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