CN112856687A - Horizontal and vertical blowing and sucking combined air isolation device, system and method - Google Patents
Horizontal and vertical blowing and sucking combined air isolation device, system and method Download PDFInfo
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- CN112856687A CN112856687A CN202110062899.XA CN202110062899A CN112856687A CN 112856687 A CN112856687 A CN 112856687A CN 202110062899 A CN202110062899 A CN 202110062899A CN 112856687 A CN112856687 A CN 112856687A
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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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
- F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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Abstract
The air isolation device comprises two air port components arranged at two sides of a sickbed, wherein each air port component comprises an air inlet and an air outlet component, a blower is arranged at the air inlet, a gas purification device is arranged between the air inlet and the air outlet component, the air outlet component comprises a first outlet for spraying transverse airflow and a second outlet for spraying vertical airflow, the air outlet component in one air port component is arranged close to the sickbed, and the air inlet in the other air port component is arranged close to the sickbed, so that airflow in the horizontal direction is formed above the sickbed; the sickbed is characterized by further comprising two air outlet assemblies arranged above the sickbed, each air outlet assembly is located above the air port component, and the air outlet assemblies are driven by an exhaust fan to suck air flow from the second outlet.
Description
Technical Field
The disclosure belongs to the technical field of medical equipment, and particularly relates to a horizontal and vertical blowing and sucking combined air isolation device and method.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The inventor knows that in the existing infectious disease treatment and protection process, a great deal of attention is paid to the prevention and control work of the virus with strong infectivity. In hospital prevention and control, isolation prevention and control between medical staff and patients is particularly important. At present, when medical care personnel contact a patient carrying a strong infectious germ virus, the medical care personnel need to wear a whole set of isolation clothes, and the physical burden of the medical care personnel is increased. The inventor finds that most of domestic researches on isolating sickbeds in recent years are started from large space enclosure, such as erecting isolation screens and isolation covers. Needs to occupy larger space and is inconvenient to use.
Disclosure of Invention
The present disclosure is directed to a horizontal and vertical blowing and sucking combined air isolation device, system and method, which can solve at least one of the above problems.
In order to achieve the above object, one or more embodiments of the present disclosure provide an air isolation device combining horizontal and vertical blowing and sucking, including two air port members disposed at two sides of a hospital bed, each air port member includes an air inlet and an air outlet assembly, a gas purification device is disposed between the air inlet and the air outlet assembly, a blower is disposed at the air inlet, the air outlet assembly includes a first outlet for spraying a transverse airflow and a second outlet for spraying a vertical airflow, the air outlet assembly in one air port member is disposed close to the hospital bed, and the air inlet in the other air port member is disposed close to the hospital bed, so that a horizontal airflow is formed above the hospital bed; the sickbed is characterized by further comprising two air outlet assemblies arranged above the sickbed, each air outlet assembly is located above the air port component, and the air outlet assemblies are driven by an exhaust fan to suck air flow from the second outlet.
As a further improvement, the gas purification device comprises a primary filter communicated with the air inlet, the primary filter is connected with a blower, the blower is connected with a secondary filter, a differential pressure sensor is arranged in front of and behind the secondary filter, the differential pressure sensor is in signal connection with a controller, the secondary filter is connected with a blowing static pressure box, and the blowing static pressure box is communicated with the air outlet assembly.
As a further improvement, the first outlet is a horizontal louver air supply outlet, and the blowing direction of the first outlet can be adjusted so as to enable the air flow to pass over the breathing zone of the patient.
As a further improvement, the device also comprises an ultraviolet sterilization device, wherein the ultraviolet sterilization device comprises an ultraviolet lamp arranged in the box body, a U-shaped guide plate is arranged in the box body, and the U-shaped guide plate is used for increasing the movement time of gas in the box body.
As a further improvement, a vertical air supply control valve is arranged at the second outlet and used for controlling the opening and closing of the second outlet.
The second aspect of the disclosure provides an automatic induction vertical purified air curtain isolation system, which further comprises an infrared inductor, wherein the infrared inductor is connected with a controller, the controller is further connected with a vertical air supply control valve, an exhaust fan, an air feeder, a secondary filter and an ultraviolet lamp, and the vertical air supply control valve is used for controlling the on-off of a second outlet.
A third aspect of the present disclosure provides a ward air isolation method using the auto-induction vertical purified air curtain isolation system, comprising the steps of:
when the infrared sensor does not detect that a person approaches, suction matching is realized by utilizing the horizontally arranged air inlet and the first outlet of the air outlet assembly, and horizontal airflow is formed in the space above the face of the patient to complete air supply circulation;
when the infrared sensor detects that a person approaches, a signal is sent to the controller, the controller opens the vertical air supply control valve, and meanwhile, the frequency of the air feeder is adjusted, the air volume is increased, and the illumination intensity of the ultraviolet lamp is increased;
the vertical air flow is collected by utilizing an exhaust fan and an exhaust outlet and is directly exhausted out of a ward or exhausted after centralized sterilization treatment
The beneficial effects of one or more of the above technical solutions are as follows:
the method utilizes the specific flow field of the blowing and sucking air flow to efficiently control the pollutants in a smaller range and timely remove and purify the pollutants; the equipment has compact structure, is arranged at two sides of the sickbed closer to the pollution source, does not occupy other operation space, and brings convenience to nursing operation. In addition, when medical staff approach to a patient, the infrared sensing device is automatically controlled to blow out clean air in the vertical direction, an isolation air curtain is formed between the patient and the medical staff, and the medical staff is prevented from being infected by germs and viruses through a close-range air transmission way. Therefore, when medical staff cure and nurse diseases, only necessary body contact protection is needed, thick and heavy isolation clothes do not need to be worn on the whole body, the body burden of the medical staff is reduced, and the operation flexibility and nursing efficiency of the medical staff are improved. According to the technology, all functions can be realized only by adding the blowing and sucking purification device system on two sides and combining blowing and sucking of equipment on two sides with matched operation on the basis of the existing common sickbed.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
Fig. 1 is a schematic diagram of the overall structure in one or more embodiments of the present disclosure.
In the figure, 1, an air inlet; 2. a primary filter; 3. a variable frequency fan; 4. a secondary filter; 5. an ultraviolet sterilization device; 6. an ultraviolet lamp; 7. a U-shaped guide plate; 8. a sound attenuation static pressure box; 9. an infrared sensor; 10. a first outlet; 11. a vertical air supply control valve; 12. a second outlet; 13. a top air outlet; 14. a top exhaust fan; 15. a controller; 16. a differential pressure sensor.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Example 1
As shown in fig. 1, the present embodiment provides a horizontal and vertical blowing and sucking combined air isolation device, which includes two air port members disposed at two sides of a hospital bed, each air port member includes an air inlet and an air outlet assembly, a gas purification device is disposed between the air inlet and the air outlet assembly, a blower is disposed at the air inlet, the air outlet assembly includes a first outlet for spraying a transverse air flow and a second outlet for spraying a vertical air flow, the air outlet assembly in one air port member is disposed close to the hospital bed, and the air inlet in the other air port member is disposed close to the hospital bed, so that an air flow in a horizontal direction is formed above the hospital bed; the sickbed is characterized by further comprising two air outlet assemblies arranged above the sickbed, each air outlet assembly is located above the air port component, and the air outlet assemblies are driven by an exhaust fan to suck air flow from the second outlet.
The gas purification device comprises a primary filter communicated with the air inlet, the primary filter is connected with the air feeder, the air feeder is connected with a secondary filter, a differential pressure sensor is arranged in front of and behind the secondary filter, the differential pressure sensor is in signal connection with the controller, the secondary filter is connected with the air feeding static pressure box, and the air feeding static pressure box is communicated with the air outlet assembly.
The first outlet is a horizontal shutter air supply outlet, and the air blowing direction of the first outlet can be adjusted so that the air flow sweeps over the breathing zone of the patient.
And a vertical air supply control valve is arranged at the second outlet and is used for controlling the opening and closing of the second outlet.
In this embodiment, inhale at first through primary filter 2, avoid inhaling great object such as fabric fibre, consider that the ward itself has certain cleanliness factor, only set up secondary filter 4(HEPA filter core) in equipment, get rid of the less particulate matter of particle diameter, secondary filter 4 sets up pressure differential sensor 16 around, when pressure differential behind secondary filter 4 exceeds the control setting value, controller 15 will send the police dispatch newspaper, in time remind the filter core of changing secondary filter, the air current flows near ultraviolet lamp 6, prolong the disinfection processing time under U type guide plate 7's effect, guarantee the purifying effect to virus germ.
The air supply system disclosed in the embodiment can provide gentler and more effective airflow organization, thereby ensuring the comfort of patients and the safety of medical workers. Polluted air generated by breathing of a patient and the like is blown to the air inlet 1 at the other side from one side of the sickbed by utilizing horizontal jet flow, and the air is collected and purified by the air inlet 1 and then is discharged. The first outlet 10 adopts a horizontal shutter air port, can adjust the position of the blowing air flow higher than the head of the patient according to the height of the head of the patient, has better plane jet flow characteristic, and better controls and carries the polluted air generated in the respiratory area of the patient.
The air supply static pressure box 8 is arranged to remove noise, so that the device is ensured to operate at low noise, and the rest of a patient is not influenced; in addition, the variable frequency fan 3 is adopted, so that the air volume of air supply can be adjusted according to different working modes, and different air supply modes are realized.
The problem that the floor area of the traditional isolation ward is large is solved, the isolation ward is suitable for large-scale centralized observation and use, and cross infection is prevented. The blower 3, the purification device secondary filter 4, the ultraviolet sterilization device 5, the ultraviolet lamp 6, the U-shaped guide plate 7 and other parts can be arranged below the sickbed, and related air port parts (an air inlet 1, a primary filter 2, a silencing static pressure box 8, a first outlet 10, a vertical air supply control valve 11 and a second outlet 12) can be arranged in the head regions of patients on two sides of the sickbed and are connected to equipment on two sides of the sickbed through air pipes.
In this embodiment, adopt the auto-induction operation, open vertical air-purifying curtain when having medical personnel to be close to, under the prerequisite of further guaranteeing medical personnel's safety, realize the operation energy-conservation, be an efficient cut-off device. When the infrared sensor 9 detects that a person approaches, a signal is sent to the controller 15, the controller 15 opens the vertical air supply control valve 11, the vertical partition air flow is sent out through the second outlet 12, the frequency of the air feeder 3 is increased, the air volume is increased, and the illumination intensity of the ultraviolet lamp 6 is increased; synchronously starting a top exhaust fan 14, collecting vertical airflow through a top exhaust outlet 13, and finally exhausting the vertical airflow out of the room; the propagation risk that vertical airflow spreads indoors possibly is avoided.
In a typical implementation scenario, when a patient suffers from a respiratory tract-borne disease, the controller 15 is set, the ultraviolet lamp 6 is turned on, the blower 3 is turned on again, purified air flows can flow out from the air supply outlet 10, and after carrying polluted air generated by the patient, the air flows are collected by the air inlet 1 and purified again; when personnel are close to, the infrared sensor 9 automatically senses and transmits signals to the controller 15, the controller 15 further adjusts the air quantity of the fan 3 and the strength of the ultraviolet lamp 6 on the basis of horizontal air supply, and the air valve 11 and the top exhaust fan 14 are opened simultaneously to achieve horizontal and vertical air supply simultaneously.
In another typical specific implementation scenario, two sets of the device of the invention can be respectively installed on two sides of a sickbed, at the moment, air in a sickroom can be inhaled by the device on one side, air is supplied after purification, horizontal airflow is inhaled by the air inlet of the device on the other side, and the purified air is discharged indoors; under this mode, when medical personnel were close to, the infrared inductor 9 of both sides device can be according to the position of medical personnel's sick bed side, opens the vertical blast valve 12 of corresponding side, when medical personnel all had medical personnel in both sides, still can open the vertical isolation air current of both sides simultaneously. The control mode of the top exhaust fan 14 and the controller 15 for the blower 3 and the ultraviolet lamp 6 is the same as that for the single unit.
It should be noted that, in this embodiment, for the simulation calculation of the existing epidemic virus and bacteria data, parameters such as horizontal air supply amount, air supply speed, air supply angle, air supply coverage area, and vertical air supply are collectively set, a preset mode is formed in the controller 15, and the operation control can be performed through a manual mode or an automatic mode.
The beneficial effect of this embodiment lies in:
(1) the device of the invention can be arranged at two sides of the sickbed near the head of a patient in the sickbed, controls harmful gas generated by the respiration of the patient through effective airflow flow, and collects, purifies and exhausts the harmful gas. The invention is different from the traditional isolation sickbed which is surrounded by the isolation cover, the structure of the actual device is compact, the problem of the upper space of the patient caused by the mode that the isolation cover is adopted in the traditional isolation sickbed is solved, and the use of the upper space of the patient is not influenced.
(2) The device adopts the low-noise fan, and the air supply static pressure box is added in the air supply pipeline, so that the noise of the device is further reduced, and the normal rest of the patient can be ensured; can be used in a matched manner and arranged on two sides of a sickbed, and has compact structure; does not occupy the operation space on the upper part of the sickbed, and brings convenience to the daily limb movement of the patient and the nursing operation of medical care personnel.
(3) The air treatment component can also be arranged at the lower part of the sickbed, and the two sides of the sickbed are only provided with components such as a blowing port, an air inlet and the like; the air processing component is connected with the related air port through the air pipeline, so that the space occupied by two sides of the sickbed can be further reduced.
(4) In the invention, the air inlet is primarily filtered by a stainless steel filter screen, so that large particles such as fabric fibers falling in a ward can be intercepted; a secondary filter is arranged in the filter body to filter fine particles, microorganisms and other particles, and the efficiency can reach more than 99.9999%.
(5) In the invention, an ultraviolet sterilizing lamp is arranged in the device after the high-efficiency filter, and bacteria and viruses are killed by ultraviolet illumination with proper intensity, so that the purification efficiency is ensured; the U-shaped guide plate is arranged in the ultraviolet sterilization area, so that the contact time of air flow and the ultraviolet lamp is prolonged, and the germs are inactivated more thoroughly.
(6) In the invention, a second outlet is added on the basis of horizontal air supply. The vertical airflow is automatically started only when the medical care personnel approaches to the patient, so that the propagation path between the patient and the doctor can be cut off, and the exposure risk of the medical care personnel is reduced; the air outlet which is connected with the exhaust fan is arranged on the upper part of the vertical ventilation opening close to the ceiling in a matched mode, the collected air is directly discharged in a matched mode when the vertical air flow is opened, and the pollution risk caused by the fact that the vertical isolation air flow diffuses in a ward can be avoided. When the person leaves, after the infrared sensor signal is input, the controller closes the vertical air supply valve, stops the vertical air supply flow and correspondingly adjusts the air supply quantity of the fan; 5 minutes after the vertical airflow had stopped, the top exhaust fan was stopped to ensure that all possible contaminant-containing airflow was exhausted.
(7) Compared with the traditional isolation sickbed, the whole set of device is more intelligent. The controller controls and realizes two working modes, firstly, when the sickbed is used, the controller starts the ultraviolet lamp and the fan, one group of devices at two sides blow out purified air flow, and the other group sucks in the air flow and purifies and discharges the air flow; secondly, when the infrared sensor senses that the medical care personnel approaches the sickbed, the infrared sensor sends a signal to the controller, the controller opens the vertical air supply control valve, and simultaneously adjusts the frequency of the air feeder to increase the air volume, and increases the illumination intensity of the ultraviolet lamp, thereby realizing the functions of horizontal air blowing and vertical air blowing simultaneously; meanwhile, the control system also controls the top exhaust fan to be started, and vertical airflow is collected and exhausted; and can automatically close the vertical air flow according to the signal of the infrared sensor and delay the closing of the top exhaust.
(8) In the invention, the control system also has the function of monitoring the operation of the secondary filter; a pressure difference sensor is arranged at the position of the secondary filter, when the pressure difference between the front and the rear of the secondary filter exceeds the allowable highest pressure difference, the controller gives an alarm to prompt the replacement of a filter element of the high-efficiency filter; the alarm forms such as flashing lights or giving out alarm sound can be adopted.
(9) The invention solves the problems of reduced filtration efficiency, high loading and unloading difficulty and high replacement cost when the traditional filter is not cleaned in time. The stainless steel filter screen is adopted for primary filtration, so that the cleaning is convenient; the two ends of the secondary filter are provided with the differential pressure sensors which are connected with the controller, the controller sends out signals in time to remind of replacing the filter screen in the secondary filter, and the secondary filter is installed in a drawer mode and convenient to detach and maintain.
(10) In the invention, two groups of devices can be respectively arranged on two sides of the sickbed, at the moment, one group of devices sucks indoor air from one side and horizontally sends the air out like the inside of the sickbed after purification, and the other group of devices sucks horizontal airflow on the opposite side and discharges the air after purification; the two groups of devices can automatically blow vertical airflow at the installation side according to infrared sensing signals, so that the change of the positions of medical staff at the two sides of a sickbed can be flexibly adapted; when both sides have personnel, still can realize both sides vertical air supply simultaneously. In the mode, the two groups of devices can be controlled independently or jointly to realize the operation control in different modes.
Example 2
The embodiment provides a vertical air curtain isolated system that purifies of auto-induction, still includes infrared inductor, and infrared inductor links to each other with the controller, and vertical air supply control valve, exhaust fan are further connected to the controller to and forced draught blower, secondary filter and ultraviolet lamp, vertical air supply control valve is used for controlling the break-make of second export.
Example 3
The embodiment provides a ward air isolation method, which utilizes the automatic induction vertical purification air curtain isolation system and comprises the following steps:
when the infrared sensor does not detect that a person approaches, suction matching is realized by utilizing the horizontally arranged air inlet and the first outlet of the air outlet assembly, and horizontal airflow is formed in the space above the face of the patient to complete air supply circulation;
when the infrared sensor detects that a person approaches, a signal is sent to the controller, the controller opens the vertical air supply control valve, and meanwhile, the frequency of the air feeder is adjusted, the air volume is increased, and the illumination intensity of the ultraviolet lamp is increased;
the vertical air flow is collected by utilizing an exhaust fan and an exhaust outlet and is directly exhausted out of a ward or exhausted after centralized sterilization treatment.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. The utility model provides an air isolation device that level and vertical pressure-vaccum combine which characterized in that includes:
the air inlet component is arranged at the air inlet and comprises a first outlet for spraying transverse airflow and a second outlet for spraying vertical airflow, the air outlet component in one air inlet component is arranged close to the sickbed, and the air inlet in the other air inlet component is arranged close to the sickbed, so that airflow in the horizontal direction is formed above the sickbed;
the sickbed is characterized by further comprising two air outlet assemblies arranged above the sickbed, each air outlet assembly is located above the air port component, and the air outlet assemblies are driven by an exhaust fan to suck air flow from the second outlet.
2. The combined horizontal and vertical blowing and sucking air isolation device according to claim 1, wherein the air purification device comprises a primary filter communicated with the air inlet, the primary filter is connected with the air blower, the air blower is connected with a secondary filter, a differential pressure sensor is arranged in front of and behind the secondary filter, the differential pressure sensor is in signal connection with a controller, the secondary filter is connected with an air supply static pressure box, and the air supply static pressure box is communicated with the air outlet assembly.
3. The combined horizontal and vertical suck and blow apparatus of claim 2, wherein said primary filter is a stainless steel screen.
4. The combined horizontal and vertical suck and blow apparatus of claim 2 wherein the secondary filter is a HEPA filter.
5. The combined horizontal and vertical stripping and blowing air separation device as claimed in claim 1, wherein said first outlet is a horizontal louvered air plenum, and the direction of air flow at said first outlet is adjustable to sweep the air flow over the patient's breathing zone.
6. The horizontal and vertical blowing and sucking combined air isolation device as claimed in claim 1, further comprising an ultraviolet sterilization device, wherein the ultraviolet sterilization device comprises an ultraviolet lamp arranged in a box body, and a U-shaped guide plate is arranged in the box body and used for increasing the movement time of the gas in the box body.
7. The combined horizontal and vertical suck and blow air isolation device of claim 1, wherein said blower is a variable frequency blower.
8. The horizontal and vertical blowing and sucking combined air isolation device as claimed in claim 1, wherein a vertical air supply control valve is arranged at the second outlet and used for controlling the opening and closing of the second outlet.
9. The utility model provides an automatic vertical air curtain isolated system that purifies of response which characterized in that still includes infrared inductor, and infrared inductor links to each other with the controller, and vertical air supply control valve, exhaust fan are further connected to the controller to and forced draught blower, secondary filter and ultraviolet lamp, vertical air supply control valve is used for controlling the break-make of second export.
10. A ward air isolation method utilizing the auto-induction vertical clean air curtain isolation system of claim 9, comprising the steps of:
when the infrared sensor does not detect that a person approaches, suction matching is realized by utilizing the horizontally arranged air inlet and the first outlet of the air outlet assembly, and horizontal airflow is formed in the space above the face of the patient to complete air supply circulation;
when the infrared sensor detects that a person approaches, a signal is sent to the controller, the controller opens the vertical air supply control valve, and meanwhile, the frequency of the air feeder is adjusted, the air volume is increased, and the illumination intensity of the ultraviolet lamp is increased;
the vertical air flow is collected by utilizing an exhaust fan and an exhaust outlet and is directly exhausted out of a ward or exhausted after centralized sterilization treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110062899.XA CN112856687A (en) | 2021-01-18 | 2021-01-18 | Horizontal and vertical blowing and sucking combined air isolation device, system and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110062899.XA CN112856687A (en) | 2021-01-18 | 2021-01-18 | Horizontal and vertical blowing and sucking combined air isolation device, system and method |
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| CN112856687A true CN112856687A (en) | 2021-05-28 |
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| CN202110062899.XA Pending CN112856687A (en) | 2021-01-18 | 2021-01-18 | Horizontal and vertical blowing and sucking combined air isolation device, system and method |
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