CN111854029A - Sickbed cleaning device with aerosol directional control function and control method - Google Patents
Sickbed cleaning device with aerosol directional control function and control method Download PDFInfo
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- CN111854029A CN111854029A CN202010826105.8A CN202010826105A CN111854029A CN 111854029 A CN111854029 A CN 111854029A CN 202010826105 A CN202010826105 A CN 202010826105A CN 111854029 A CN111854029 A CN 111854029A
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- sickbed
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- 239000000443 aerosol Substances 0.000 title claims abstract description 22
- 238000004140 cleaning Methods 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000001681 protective effect Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000000746 purification Methods 0.000 claims description 2
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 abstract 1
- 208000035473 Communicable disease Diseases 0.000 description 7
- 241000700605 Viruses Species 0.000 description 7
- 238000002955 isolation Methods 0.000 description 5
- 230000000241 respiratory effect Effects 0.000 description 5
- 108010066114 cabin-2 Proteins 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 244000052616 bacterial pathogen Species 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000029058 respiratory gaseous exchange Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 206010011409 Cross infection Diseases 0.000 description 1
- 206010029803 Nosocomial infection Diseases 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000002070 germicidal effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 208000023504 respiratory system disease Diseases 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/065—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit fan combined with single duct; mounting arrangements of a fan in a duct
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
- A61G7/00—Beds specially adapted for nursing; Devices for lifting patients or disabled persons
- A61G7/05—Parts, details or accessories of beds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
- F24F2120/00—Control inputs relating to users or occupants
- F24F2120/10—Occupancy
- F24F2120/12—Position of occupants
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Abstract
The invention discloses a sickbed cleaning device with aerosol directional control and a control method, which comprises a protection bin arranged outside a sickbed, and is characterized in that: the protective bin comprises a return air system and an air supply and exhaust system, the return air system comprises a directional return air inlet close to the head of a patient, a front return air inlet positioned at the tail of a sickbed, a fan and an air collection chamber positioned at the top of the sickbed, and peripheral stand columns of the protective bin are of hollow structures and form return air channels of which the return air inlets are communicated with the fan; the upper top surface and the lower bottom surface of the air collection cavity are respectively provided with a high-efficiency filter, and return air of the return air channel is respectively exhausted outwards and supplied inwards through the high-efficiency filters of the air collection cavity; the air supply device also comprises an air supply opening, wherein the air supply opening is positioned below the sickbed and used for supplying air flow into the protection bin from the outside. The invention realizes the capacity of clean air supply and negative pressure maintenance in the protective bin through two systems, ensures that air in the area is not polluted, and prevents possible pollution diffusion.
Description
Technical Field
The invention relates to a cleaning device, in particular to a sickbed cleaning device with aerosol directional control and a control method thereof, which are mainly used for the isolated treatment of respiratory infectious diseases.
Background
Infectious diseases, especially respiratory infectious diseases, are most commonly transmitted by pathogenic bacteria and viruses causing the infectious diseases through flowing air, so that the infectious diseases are extremely high in infectivity and vitality, and the infectious diseases with the characteristics need to be strictly isolated and protected to prevent the diseases from being transmitted to other people.
In the existing common isolation ward, more than one patient generally receives treatment in the same ward, the treatment periods of different patients are different, carried viruses and the infectivity of the patients to other people are different, and strictly speaking, the viruses and the patients need to be separated respectively to avoid cross infection. In addition, when the infectious diseases are in large-scale outbreak, isolation wards are in short supply, the number of sickbeds in the sickrooms in a short time cannot meet the requirements of patients, and medical care personnel in direct contact with the patients are in an environment with polluted aerosol for a long time and are in close contact with the patients even if wearing protective clothing, so that the health of the patients is greatly threatened.
Therefore, it is very important to treat the polluted gas discharged from the patient in time. In the prior art, an isolation ward for respiratory diseases (CN 205637697U) is disclosed, in which an ultraviolet germicidal lamp, an air draft channel, a virus killing and sterilizing unit and an exhaust fan are arranged in a house body, and the gas with germs in the ward is extracted by the exhaust fan and purified and sterilized by the virus killing and sterilizing unit, so that the gas with bacteria and viruses is prevented from diffusing outwards, and the isolation and diffusion prevention functions are further achieved. However, the ward with the structure only considers negative pressure air exhaust, does not provide a fresh air supplement scheme, has low clean grade and cannot be used for isolating viruses with extremely strong infectivity, such as new coronary pneumonia.
Disclosure of Invention
The invention aims to provide a sickbed cleaning device with aerosol directional control and a control method thereof.
In order to achieve the purpose, the invention adopts the technical scheme that: a hospital bed cleaning device with aerosol directional control comprises a protection bin arranged outside a hospital bed, wherein the protection bin comprises a return air system and a hospital bed cleaning device and comprises a protection bin arranged outside the hospital bed, the protection bin comprises a return air system and an air supply and exhaust system, the return air system comprises a directional return air inlet close to the head of a patient, a front return air inlet positioned at the tail of the hospital bed, a fan and an air collection cavity positioned at the top of the hospital bed, peripheral stand columns of the protection bin are of a hollow structure, and a return air channel of which each return air inlet is communicated with the fan is formed; the upper top surface and the lower bottom surface of the air collection cavity are respectively provided with a high-efficiency filter, and return air of the return air channel is respectively exhausted outwards and supplied inwards through the high-efficiency filters of the air collection cavity to form the air supply and exhaust system; the air supply device also comprises an air supply opening, wherein the air supply opening is positioned below the sickbed and used for supplying air flow into the protection bin from the outside.
In the technical scheme, the directional air return opening is composed of a sitting posture air return opening and a sleeping posture air return opening, the position of the sitting posture air return opening is matched with the height of the head of a patient when the patient sits up, and the sleeping posture air return opening is positioned below a sickbed and corresponds to the height of the head of the patient when the patient lies down.
In the technical scheme, an electric air valve is arranged in the directional air return inlet and is triggered by a corresponding sensor to control the working state of the electric air valve.
In the technical scheme, the fan is positioned at the top of the protection bin close to the front side air return inlet, the air return channel of the front side air return inlet is communicated with the fan, the air return channel of the directional air return inlet comprises a longitudinal air return channel in the upright post and a transverse air return channel communicated with the fan, and the transverse air return channels are positioned at two sides of the air collection cavity and are separated from the air collection cavity through special air return channels.
In the technical scheme, the upper top surface of the air collecting cavity is an air exhaust efficient filter, the lower bottom surface of the air collecting cavity is an air supply efficient filter, and the air exhaust amount of the air exhaust efficient filter accounts for 15% -35% of the total return air amount.
The further technology is that the air supply and exhaust air volume ratio of the exhaust efficient filter to the air supply efficient filter is 3: 7.
in the technical scheme, the protection cabin is a semitransparent cleaning device capable of accommodating a sickbed, and comprises a top surface, a bottom surface, four stand columns, a front side window, a back panel and two side sliding doors, so that a negative pressure type cavity is formed.
In order to achieve the purpose, the technical scheme of the control method adopted by the invention is as follows: an aerosol directional control method of a sickbed cleaning device comprises a protection cabin and an airflow purification system, and the control mode is as follows: the state of a patient is judged by a sensor arranged in the protection cabin, the sensor is divided into a second sensor which is adaptive to the height of the head of the patient when the patient sits up and a first sensor which is adaptive to the height of the head of the patient when the patient lies down, when the first sensor and the second sensor sense the patient, an electric air valve of a sitting posture air return port and a sleeping posture air return port is opened, and polluted air is sucked in a directional manner; when only the first sensor senses a patient, the sleeping air return opening electric air valve is opened, and the sitting air return opening electric air valve is closed; when the first sensor and the second sensor do not sense the patient, the two electric air valves of the directional air return inlet are closed.
In the technical scheme, a delay switch can be further arranged, when the electric air valve of the directional air return inlet is closed, the fan at the top of the protection bin enters a delay time period, the working time of the delay switch is set, and the fan is closed when the working time is up.
Due to the application of the technical scheme, compared with the prior art, the invention has the following advantages:
1. the invention comprises an air return system and an air supply and exhaust system, on one hand, polluted air flow is sucked by a motor to form negative pressure in a protection bin, on the other hand, collected air flow is purified by a high-efficiency filter, part of processed clean air flow is returned to the bin, the negative pressure state in the bin is maintained, and part of air flow is supplemented by an air supply port to ensure the fluidity and sufficient amount of air in the protection bin;
2. the device is provided with directional air return ports comprising a sitting posture air return port and a sleeping posture air return port, the state of a patient is sensed by using a sensor in each air port, the corresponding electric air valve is controlled to be opened and closed, the respiratory zone of the patient is sucked in a highly concentrated manner, the polluted air is collected in a directional and concentrated manner, and the pollution aerosol is prevented from diffusing;
3. the air return channel is arranged on the front side of the air return inlet, so that air flow entering the air supply inlet can be quickly sucked into the air return channel and enters a clean cycle, and the cleanliness of the bin cannot be influenced.
4. Because the whole protection bin is provided with the exhaust system, the protection bin is maintained in a negative pressure environment (generally negative pressure of-5 Pa), so that when the air supply opening is supplied with new air flow, the aerosol in the protection bin cannot overflow and the external environment is not influenced;
5. the invention is a relatively independent device, can be placed in a common ward, does not need to independently establish or reform an isolation ward, has good protection for medical care personnel, only needs to wear protective clothing during treatment, is in a conventional state at other times, and reduces the workload and the probability of being infected.
Drawings
FIG. 1 is a schematic structural diagram of a first embodiment of the present invention;
FIG. 2 is a schematic partial cross-sectional view of FIG. 1;
FIG. 3 is a schematic half-section view of FIG. 1;
FIG. 4 is a schematic view illustrating the flow direction of the airflow in the air collecting chamber at the top of the protection cabin according to the first embodiment of the present invention;
FIG. 5 is a schematic flow diagram illustrating the airflow within the entire protection cabin according to one embodiment of the present invention;
FIG. 6 is a schematic diagram of a sensing control process of the sensor according to one embodiment of the present invention;
fig. 7 is an installation schematic view of an electric air valve according to a first embodiment of the invention.
Wherein: 1. a hospital bed; 2. a protection bin; 3. a front side air return opening; 4. a fan; 5. a wind collecting cavity; 6. a sitting posture air return opening; 7. a sleeping posture air return port; 8. an electric air valve; 9. an air return channel; 10. a longitudinal air return duct; 11. a transverse air return duct; 12. an efficient exhaust filter; 13. an air supply high-efficiency filter; 14. a front side window; 15. a back panel; 16. a first sensor; 17. a second sensor; 18. and (4) a column.
Detailed Description
The invention is further described with reference to the following figures and examples:
the first embodiment is as follows: referring to fig. 1-7, a hospital bed cleaning device with aerosol directional control comprises a protection bin 2 arranged outside a hospital bed 1, wherein the protection bin 2 comprises an air return system and an air supply and exhaust system, the air return system comprises a directional air return inlet close to the head of a patient, a front air return inlet 3 positioned at the tail of the hospital bed 1, a fan 4 positioned at the top of the hospital bed 1 and an air collection cavity 5, peripheral upright posts 18 of the protection bin 2 are of a hollow structure, and air return channels 9 of the air return inlets communicated with the fan 4 are formed; the upper top surface and the lower bottom surface of the air collection cavity 5 are respectively provided with a high-efficiency filter, and the return air of the return air channel 9 is respectively exhausted outwards and supplied inwards through the high-efficiency filters of the air collection cavity 5 to form the air supply and exhaust system; the hospital bed further comprises an air supply opening, wherein the air supply opening is positioned below the hospital bed 1 and used for supplying air flow into the protection bin 2 from the outside.
As shown in fig. 6, the directional air return opening is composed of a sitting posture air return opening 6 and a sleeping posture air return opening 7, the position of the sitting posture air return opening 6 is adapted to the height of the head of the patient when the patient sits up, and the sleeping posture air return opening 7 is positioned below the sickbed 1 and corresponds to the height of the head of the patient when the patient lies down. An electric air valve 8 is arranged in the directional air return opening, and the electric air valve 8 is triggered by a corresponding infrared sensor to control the working state of the electric air valve 8, as shown in fig. 7. The state of the patient is judged according to the head position of the patient, the breathing zone polluted aerosol is collected in a centralized manner, filtering treatment can be carried out in time, and diffusion in a bin is avoided.
As shown in fig. 5, the fan 4 is located at the top of the protection bin 2 close to the front-side air return inlet 3, the air return channel 9 of the front-side air return inlet 3 is communicated with the fan 4, the air return channel of the directional air return inlet comprises a longitudinal air return channel 10 in the upright column and a transverse air return channel 11 communicated with the fan 4, and the transverse air return channels are located at two sides of the air collection cavity 5 and are separated from the air collection cavity through special air return channels. The protection cabin 2 adopts a two-side air return mode, the left air return channel 9 is directly sucked into an air suction opening of the fan 4, and the right longitudinal air return channel 10 is returned to the position near the fan 4 through a special air return channel at the top. A transverse air return duct 11 (special air return duct) is formed through a section structure, and the air collecting cavity 5 is separated from the transverse air return duct 11, so that air flow interference is avoided. The fan 4 is arranged at one side corner, enough space can be reserved for installing the high-efficiency filter, and air can be exhausted and supplied.
As shown in fig. 2 and 4, the air collecting chamber 5 is a plenum box, the upper top surface of the plenum box is an efficient exhaust filter 12, the lower bottom surface of the plenum box is an efficient supply filter 13, and the ratio of the air supply volume to the air discharge volume of the efficient exhaust filter 12 to the efficient supply filter 13 is 3: 7. about 70% of the air is filtered by the air supply high-efficiency filter 13 and then is sent into the bin in the form of clean air, and about 30% of the air is subjected to harmless treatment by the air exhaust high-efficiency filter 12 and is discharged outside the bin. The negative pressure state can be maintained in the bin due to the air exhaust.
In this embodiment, the protection cabin is a semitransparent cleaning device capable of accommodating a sickbed, and comprises a top surface, a bottom surface, four upright posts, a front side window 14, a back plate 15 and two side sliding doors, so as to form a negative pressure type cavity, wherein the front side window 14 is provided with glass, so that the inside and the outside of the cabin can be conveniently observed, and the two side sliding doors can also be selected to be provided with glass sliding doors, so that the light transmittance in the cabin is increased.
The specific control method comprises the following steps: the state of the patient is judged by the sensors arranged in the protection bin 2, the sensors are divided into a second sensor 17 which is adaptive to the height of the head of the patient when the patient sits up and a first sensor 16 which is adaptive to the height of the head of the patient when the patient lies down, when the first sensor and the second sensor sense the patient, an electric fan valve of a sitting posture air return port and a sleeping posture air return port is opened, and polluted air is sucked in a directional manner at the same time, which is shown in figure 6 (a); when only the first sensor 16 senses the patient, the sleeping position air return opening electric air valve is opened, and the sitting position air return opening electric air valve 8 is closed, which is shown in fig. 6 (b); when neither of the first and second sensors senses the patient, the two electric air valves 8 of the directional air return opening are closed, as shown in fig. 6 (c).
Note: v is trigger and o is off.
As shown in the above table, a chassis is arranged in the back plate 15 of the protection cabin 2, and is respectively provided with a sitting posture air return opening and a sleeping posture air return opening, when the sleeping posture is adopted, the air valve at the rear part of the sleeping posture air return opening 7 is completely opened (the air valve at the sitting posture air return opening 6 is closed), the local air collection of the respiratory zone (when the sleeping posture is adopted) at the head is increased, and the respiratory zone polluted aerosol is collected in a centralized manner; when the sitting posture is adopted, after the sitting posture air valve is completely opened, the sleeping posture air valve adopts a half-open or full-open mode, so that the centralized filtration treatment of the head respiration belt (ensured by the sitting posture air return opening 6) in the sitting posture is ensured, and the clean return air (ensured by the sleeping posture air return opening 7) in the negative pressure area is also ensured.
And a delay switch of the fan 4 can be further arranged, when the electric air valve 8 of the directional air return inlet is closed, the fan 4 at the top of the protection bin 2 enters a delay time period, the working time of the delay switch is set, and the fan is closed when the working time is up. Like this, when there is not the patient in the protection storehouse 2, all fans 4 all self-closing, and set up delay switch, can leave the back at the patient, to the interior airflow of storehouse clean a period again, ensure the cleanliness factor in protection storehouse 2.
Similarly, the protection cabin 2 can be controlled to be clean by using a remote control technology, and can be driven or closed by using the existing wireless technology.
Claims (9)
1. The utility model provides a take clean device of sick bed of aerosol directional control, includes that one sets up in the outer protection storehouse of sick bed, its characterized in that: the protective bin comprises a return air system and an air supply and exhaust system, the return air system comprises a directional return air inlet close to the head of a patient, a front return air inlet positioned at the tail of a sickbed, a fan and an air collection chamber positioned at the top of the sickbed, and peripheral stand columns of the protective bin are of hollow structures and form return air channels of which the return air inlets are communicated with the fan; the upper top surface and the lower bottom surface of the air collection cavity are respectively provided with a high-efficiency filter, and return air of the return air channel is respectively exhausted outwards and supplied inwards through the high-efficiency filters of the air collection cavity to form the air supply and exhaust system; the air supply device also comprises an air supply opening, wherein the air supply opening is positioned below the sickbed and used for supplying air flow into the protection bin from the outside.
2. The aerosol directionally controlled hospital bed cleaning device according to claim, wherein: the directional air return opening is composed of a sitting posture air return opening and a sleeping posture air return opening, the position of the sitting posture air return opening is matched with the height of the head of a patient when the patient sits up, and the sleeping posture air return opening is positioned below the sickbed and corresponds to the height of the head of the patient when the patient lies down.
3. The device with aerosol directional control for cleaning hospital bed according to claim 1 or 2, wherein: and an electric air valve is arranged in the directional air return opening and is triggered by a corresponding sensor to control the working state of the electric air valve.
4. The hospital bed cleaning device with aerosol directional control according to claim 1, wherein: the fan is positioned at the top of the protective bin close to the front side air return inlet, the air return channel of the front side air return inlet is communicated with the fan, the air return channel of the directional air return inlet comprises a longitudinal air return channel in the upright post and a transverse air return channel communicated with the fan, and the transverse air return channels are positioned at two sides of the air collection cavity and are separated from the air collection cavity through special air return channels.
5. The hospital bed cleaning device with aerosol directional control according to claim 1, wherein: the upper top surface of the air collection cavity is provided with an air exhaust high-efficiency filter, the lower bottom surface of the air collection cavity is provided with an air supply high-efficiency filter, and the air exhaust volume of the air exhaust high-efficiency filter accounts for 15% -35% of the total return air volume.
6. The aerosol directionally controlled hospital bed cleaning device according to claim 5, wherein: the air supply and exhaust air volume ratio of the exhaust air high-efficiency filter to the air supply high-efficiency filter is 3: 7.
7. the hospital bed cleaning device with aerosol directional control according to claim 1, wherein: the protection cabin is a semitransparent cleaning device capable of accommodating a sickbed, and comprises a top surface, a bottom surface, four upright posts, a front side window, a back backboard and two side sliding doors, so that a negative pressure type cavity is formed.
8. An aerosol directional control method of a sickbed cleaning device comprises a protection cabin and an airflow purification system, and the control mode is as follows: the state of a patient is judged by a sensor arranged in the protection cabin, the sensor is divided into a second sensor which is adaptive to the height of the head of the patient when the patient sits up and a first sensor which is adaptive to the height of the head of the patient when the patient lies down, when the first sensor and the second sensor sense the patient, an electric air valve of a sitting posture air return port and a sleeping posture air return port is opened, and polluted air is sucked in a directional manner; when only the first sensor senses a patient, the sleeping air return opening electric air valve is opened, and the sitting air return opening electric air valve is closed; when the first sensor and the second sensor do not sense the patient, the two electric air valves of the directional air return inlet are closed.
9. The aerosol directional control method of the hospital bed cleaning device according to claim 8, wherein: and a delay switch can be further arranged, when the electric air valve of the directional air return inlet is closed, the fan at the top of the protection bin enters a delay time period, the working time of the delay switch is set, and the fan is closed when the working time is up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826105.8A CN111854029A (en) | 2020-08-17 | 2020-08-17 | Sickbed cleaning device with aerosol directional control function and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010826105.8A CN111854029A (en) | 2020-08-17 | 2020-08-17 | Sickbed cleaning device with aerosol directional control function and control method |
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| Publication Number | Publication Date |
|---|---|
| CN111854029A true CN111854029A (en) | 2020-10-30 |
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|---|---|---|---|
| CN202010826105.8A Pending CN111854029A (en) | 2020-08-17 | 2020-08-17 | Sickbed cleaning device with aerosol directional control function and control method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472445A (en) * | 2020-11-26 | 2021-03-12 | 重庆劲旗科技股份有限公司 | Air curtain type nursing bed and ambulance with same |
| CN114543238A (en) * | 2020-11-27 | 2022-05-27 | 大金工业株式会社 | Pollutant control system, air return device and control method thereof |
| WO2022134973A1 (en) * | 2020-12-23 | 2022-06-30 | 重庆海润节能技术股份有限公司 | Distributed ventilation system and control method for ward |
-
2020
- 2020-08-17 CN CN202010826105.8A patent/CN111854029A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112472445A (en) * | 2020-11-26 | 2021-03-12 | 重庆劲旗科技股份有限公司 | Air curtain type nursing bed and ambulance with same |
| CN114543238A (en) * | 2020-11-27 | 2022-05-27 | 大金工业株式会社 | Pollutant control system, air return device and control method thereof |
| WO2022134973A1 (en) * | 2020-12-23 | 2022-06-30 | 重庆海润节能技术股份有限公司 | Distributed ventilation system and control method for ward |
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