CN111271789A - Negative pressure ward and ventilation control method used in combination with epidemic prevention - Google Patents
Negative pressure ward and ventilation control method used in combination with epidemic prevention Download PDFInfo
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- CN111271789A CN111271789A CN202010202678.3A CN202010202678A CN111271789A CN 111271789 A CN111271789 A CN 111271789A CN 202010202678 A CN202010202678 A CN 202010202678A CN 111271789 A CN111271789 A CN 111271789A
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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
- F24F3/167—Clean rooms, i.e. enclosed spaces in which a uniform flow of filtered air is distributed
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H3/00—Buildings or groups of buildings for public or similar purposes; Institutions, e.g. infirmaries or prisons
- E04H3/08—Hospitals, infirmaries, or the like; Schools; Prisons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—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
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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
- F24F7/007—Ventilation with forced flow
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/40—Pressure, e.g. wind pressure
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
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Abstract
The invention discloses a negative pressure ward used by combining epidemic prevention, which comprises a medical corridor, a ward, a patient corridor and a buffer room, wherein a power distributed ventilation system comprises a main fresh air fan, a fresh air control module, a main exhaust fan, an exhaust control module, a pressure difference sensor for monitoring the pressure difference between the ward and the corresponding buffer room and an air quality sensor for monitoring the air quality condition in the ward; meanwhile, the invention also discloses a ventilation control method of the negative pressure ward combined with epidemic prevention. When the negative pressure sickroom is used, the exhaust control module can be linked with the feedback signal of the pressure difference sensor to regulate the exhaust volume, and the designed pressure difference can be ensured to be restored to be normal immediately after being damaged so as to prevent cross infection; when the novel air exhaust control device is used as a common ward, the novel air control module can be used for adjusting the fresh air quantity in a linkage manner by combining with a feedback signal of the air quality sensor, and then the novel air exhaust control module is used for adjusting the air exhaust quantity in a linkage manner, so that the energy consumption can be reduced when the novel air exhaust control device is used as a common ward.
Description
Technical Field
The invention relates to the technical field of fresh air systems and control, in particular to a negative pressure ward combined with epidemic prevention and a ventilation control method of the negative pressure ward combined with epidemic prevention, which are suitable for negative pressure wards and negative pressure isolation wards.
Background
Negative pressure ward (including negative pressure isolation ward) is a place for receiving and treating respiratory tract infectious patients, and has a great difference from ordinary ward and other functional places in the requirements on ventilation systems, such as the requirement of strict pressure difference gradient, and the requirement of minimum fresh air volume is more than 3 times that of ordinary ward. When the negative pressure ward is used as a general ward or other functional rooms without the need of treating respiratory tract infectious patients, the use mode and control of the ventilation system thereof cause huge energy waste.
In addition, as a negative pressure ward, the pressure difference control is the most important factor for controlling pollution, and the current ventilation system mostly adopts a constant air volume valve, so that the system operates at a constant air volume under the condition of ensuring the design pressure difference. However, in the actual use process of the sickroom, the opening and closing of doors and windows in the sickroom often exist, the designed pressure difference can be damaged instantly, the pressure difference recovery of the constant air volume ventilation system is slow, and the cross infection phenomenon is easily caused because the pressure difference between the regions cannot be recovered timely and the constant pressure difference operation cannot be realized.
Disclosure of Invention
The invention aims to provide a negative pressure ward which can be used in combination with epidemic prevention, can be used as a negative pressure ward under an epidemic situation, can be used as a common ward under an ordinary situation, can ensure that the negative pressure ward can be immediately recovered to be normal after the design pressure difference is damaged so as to prevent cross infection when being used as the negative pressure ward, and can also ensure that the energy consumption can be reduced when being used as the common ward.
Therefore, the technical scheme adopted by the invention is as follows: the utility model provides a negative pressure ward that tie epidemic combines to use, includes medical corridor, ward, patient corridor and power distributed ventilation system, be equipped with the surge chamber between medical corridor and the ward, power distributed ventilation system includes new trend system and exhaust system, new trend system includes main new trend fan to and the new trend control module with every ward one-to-one, exhaust system includes main exhaust fan to and the control module of airing exhaust with every ward one-to-one, power distributed ventilation system is still including the pressure differential sensor who is used for monitoring pressure differential between ward and the corresponding surge chamber for the air quality sensor of monitoring the air quality situation in the ward, pressure differential sensor is connected with the control module electricity of airing exhaust that corresponds, and air quality sensor is connected with the new trend control module, the control module electricity of airing exhaust that correspond.
Preferably, each ward is provided with a toilet and a toilet exhaust control module, and the toilet is independently provided with the exhaust control module for independent control, so that the ventilation effect is improved.
It is further preferred that every two adjacent rooms are arranged symmetrically and share one buffer room, and the buffer room and the two toilets of the rooms are arranged in sequence from the medical corridor to the patient corridor.
Meanwhile, the invention also discloses a ventilation control method of the negative pressure ward used in combination with the epidemic prevention, which comprises the negative pressure ward used in combination with the epidemic prevention;
when the ward is used as a negative-pressure ward in an epidemic situation, a fresh air system of the power distributed ventilation system adopts a fresh air quantity fixing and exhaust air quantity changing control mode, and sets a pressure difference gradient range of the buffer room and the ward under negative pressure to ensure that directional air flows of a medical corridor, the buffer room, the ward and a patient corridor are formed, and when a pressure difference sensor monitors that the pressure difference value between the ward and the corresponding buffer room is higher than or lower than the set pressure difference gradient range, the air quantity is immediately linked with an exhaust air control module in the ward to reduce or increase the air quantity to operate until the normal pressure difference gradient range is recovered;
when the ward is used as a common ward under ordinary conditions, the fresh air system of the power distributed ventilation system adopts a fresh air volume changing and exhaust air volume changing control mode and sets air quality parameters of the ward, when the air quality sensor monitors that the air quality of the ward is superior to or equal to a set value, the fresh air system and the exhaust air system normally operate, when the air quality sensor monitors that the air quality of the ward is inferior to the set value, the fresh air control module in the ward is immediately linked to increase the fresh air volume, and then the exhaust air control module in the ward is linked to increase the exhaust air volume until the air quality sensor monitors that the air quality of the ward returns to normal.
As the optimization of the ventilation control method of the negative pressure ward used in combination with tie epidemic, under the condition of combining tie epidemic and two using conditions, the main fresh air fan and the main exhaust fan of the power distributed ventilation system are respectively controlled by adopting a total air volume control method, namely when the deviation between the actual operation total air volume of each main fresh air fan and the superposed air volume of all the fresh air exhaust control modules on the pipeline is monitored, the signal voltage of the corresponding main fresh air fan or the corresponding main exhaust fan is adjusted, and the operation air volume is controlled to be increased or decreased. The monitored air volumes of the air supply and exhaust control modules in the ward are superposed, and the total air supply and exhaust volume is adjusted by comparing the superposed value with the air volume values of the main air supply and exhaust fan operation, so that the air supply and exhaust of the system are ensured as required.
Preferably, each ward is provided with a toilet and a toilet exhaust control module, and when the system is debugged, the pressure difference between the toilet and the corresponding ward is adjusted, so that the airflow in the toilet is prevented from returning to the ward.
The invention has the beneficial effects that: the additional pressure difference sensor is used for monitoring the pressure difference between the ward and the corresponding buffer chamber, and the air quality sensor is used for monitoring the air quality condition in the ward. When the negative pressure ward air exhaust control device is used as a negative pressure ward, the air exhaust control module can be linked with a feedback signal of the pressure difference sensor to adjust the air exhaust amount, so that the design pressure difference can be restored to be normal immediately after being damaged when the negative pressure ward air exhaust control device is used as the negative pressure ward to prevent cross infection; when the negative pressure ward is used as a common ward, the fresh air control module can be used for adjusting the fresh air quantity in a linkage manner by combining with a feedback signal of the air quality sensor, and then the exhaust control module is used for adjusting the exhaust air quantity in a linkage manner, so that the energy consumption can be reduced when the negative pressure ward is used as the common ward.
Drawings
Fig. 1 is a schematic structural diagram of a negative pressure ward used in combination with epidemic prevention.
Fig. 2 is a control logic diagram of the negative pressure ward used in combination with epidemic prevention as the negative pressure ward.
Fig. 3 is a control logic diagram of the negative pressure ward used in combination with the epidemic prevention as a general ward.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings:
as shown in figure 1, a negative pressure ward used in combination with epidemic prevention mainly comprises a medical corridor 1, a ward 2, a patient corridor 3, a buffer room 4 and a power distribution type ventilation system.
Each ward 2 is equipped with a buffer room 4, the buffer room 4 being located between the healthcare corridor 1 and the ward 2.
The power distribution type ventilation system mainly comprises a fresh air system and an exhaust system. The fresh air system mainly comprises a main fresh air fan 5 and fresh air control modules 6 which are in one-to-one correspondence with the disease rooms 2. The exhaust system mainly comprises a main exhaust fan 7 and exhaust control modules 8 which are in one-to-one correspondence with the sickrooms 2.
Besides, the power distribution type ventilation system also comprises a differential pressure sensor 9 for monitoring the pressure difference between the patient room 2 and the corresponding buffer room 4 and an air quality sensor 10 for monitoring the air quality condition in the patient room 2. The differential pressure sensor 9 is electrically connected with the corresponding exhaust control module 8 and is used for controlling the exhaust of the ward 2. The air quality sensor 10 is electrically connected with the corresponding fresh air control module 6 and the exhaust air control module 8 and is used for controlling the air intake and exhaust of the ward 2.
When the ward 2 is used as a negative pressure ward in an epidemic situation, the differential pressure sensor 9 monitors the differential pressure. The air quality sensor 10 performs air quality monitoring when the patient's room 2 is used as a general ward in a usual situation.
Every two adjacent sick rooms 2 are arranged in a group symmetrically and share one buffer room 4, and the buffer room 4 and two toilets 11 of the sick rooms 2 are arranged in sequence from the medical corridor 1 to the patient corridor 3 so as to optimize the overall spatial arrangement.
Each ward 2 is preferably equipped with a toilet 11 and a toilet exhaust control module 12, the toilet exhaust control module 12 being incorporated into the exhaust system as part of the exhaust system. When the air exhaust control module 12 is used as a negative pressure ward, the air exhaust control module 12 in the toilet operates with constant air volume; when the air exhaust control module 12 is used as a general ward at ordinary times, the air exhaust control module 12 can be divided into different air volume operation working conditions in the daytime and at night so as to further save energy.
A ventilation control method of a negative pressure ward used in combination with epidemic prevention comprises the negative pressure ward used in combination with epidemic prevention.
With reference to fig. 1 and 2, when the ward 2 is used as a negative pressure ward in an epidemic situation, the fresh air system of the power distribution ventilation system adopts a constant fresh air volume and variable exhaust air volume control mode, and sets a differential pressure gradient range of the buffer room 4 and the ward 2 under negative pressure to ensure that directional air flows of the medical corridor 1, the buffer room 4, the ward 2 and the patient corridor 3 are formed. Under the epidemic situation, the constant fresh air volume control is adopted to ensure that the fresh air volume is enough, and the pressure difference gradient is controlled within the set range only by the exhaust air volume.
When the differential pressure sensor 9 monitors that the differential pressure value between the ward 2 and the corresponding buffer chamber 4 is higher or lower than the set differential pressure gradient range, the exhaust control module 8 in the ward 2 is linked to reduce or increase the air volume to operate immediately until the areas recover to the normal differential pressure gradient range. When the doors and windows of the ward are opened, the air exhaust control module in the ward is immediately linked to reduce or increase the air volume, so that the pressure difference of each area is immediately constant, and the cross infection caused by the backflow of polluted air flow is avoided. The power distribution type ventilation system normally operates in a fresh air volume and exhaust volume mode which meets the air volume specified by the specification and ensures the gradient pressure difference requirement of a ward.
Referring to fig. 1 and 3, when the patient's room 2 is used as a general ward in a normal state, air quality and energy-saving operation control are realized. In order to ensure the air quality in the ward and save the operation energy consumption of the system, the fresh air system of the power distributed ventilation system adopts a variable fresh air volume and variable exhaust air volume control mode, and sets the air quality parameters of the ward 2.
When the air quality sensor 10 monitors that the air quality of the ward 2 is better than or equal to a set value, the fresh air system and the exhaust system operate normally; when the air quality sensor 10 monitors that the air quality of the ward 2 is inferior to a set value, if the air quality sensor 10 monitors that the concentration of carbon dioxide exceeds 1000ppm, the fresh air control module 6 in the ward 2 is immediately linked to increase the fresh air volume, and then the exhaust air control module 8 in the ward 2 is linked to increase the exhaust air volume, so that the air quality requirement in the ward can be quickly met until the air quality sensor 10 monitors that the air quality of the ward 2 is recovered to be normal. After the air quality is recovered to be normal, the new air exhaust system and the air exhaust system are recovered to be operated with small air volume under the set normal condition, so that the air quality is ensured, and the operation energy consumption is saved.
Preferably, as shown in fig. 2 and 3, in the case of combining the two usage conditions, the main fresh air blower 5 and the main exhaust air blower 7 of the power distribution type ventilation system are respectively controlled by a total air volume control method, that is, when the deviation between the actual operation total air volume of each main fresh air blower 5 and the superimposed air volume of all the fresh air exhaust control modules on the pipeline is monitored, the signal voltage of the corresponding main fresh air blower 5 or main exhaust air blower 7 is adjusted to control the increase or decrease of the operation air volume.
In addition, since the degree of contamination of the toilet 11 is higher than that of the patient's room 2, the pressure difference between the toilet 11 and the corresponding patient's room 2 is adjusted during system commissioning, thereby ensuring that the airflow in the toilet 11 does not flow back into the patient's room 2.
A set of power distribution type ventilation system meets room requirements under two different use modes through a control system, each ward can be independently adjusted, and the adjustment of one ward does not affect other wards.
Claims (6)
1. The utility model provides a tie negative pressure ward that epidemic disease combines used, is including doctorsing and nurses corridor (1), ward (2), patient corridor (3) and power distributed ventilation system, be equipped with between doctorsing and nurses corridor (1) and ward (2) surge chamber (4), power distributed ventilation system includes new trend system and exhaust system, new trend system includes main new trend machine (5) to and with new trend control module (6) of every ward (2) one-to-one, exhaust system includes main exhaust fan (7) to and with exhaust control module (8) of every ward (2) one-to-one, its characterized in that: the power distribution type ventilation system further comprises a differential pressure sensor (9) used for monitoring the differential pressure between the ward (2) and the corresponding buffer room (4), and an air quality sensor (10) used for monitoring the air quality condition in the ward (2), wherein the differential pressure sensor (9) is electrically connected with the corresponding air exhaust control module (8), and the air quality sensor (10) is electrically connected with the corresponding fresh air control module (6) and the air exhaust control module (8).
2. The negative pressure ward for use in combination with the tie vaccine according to claim 1, wherein: each sickroom (2) is equipped with a toilet (11) and a toilet exhaust control module (12).
3. The negative pressure ward for use in combination with the tie vaccine according to claim 1 or 2, characterized in that: every two adjacent sickrooms (2) are arranged in a group symmetrically and share one buffer chamber (4), and the buffer chamber (4) and two toilets (11) of the sickrooms (2) are arranged in sequence from the medical corridor (1) to the patient corridor (3).
4. A ventilation control method of a negative pressure ward used by combining epidemic prevention is characterized by comprising the following steps: a negative pressure ward comprising the tie vaccine of claim 1 in combination;
when the ward (2) is used as a negative-pressure ward in an epidemic situation, a fresh air system of the power distribution type ventilation system adopts a fresh air volume fixing and variable air volume control mode, and sets a pressure difference gradient range of the buffer room (4) and the ward (2) under negative pressure to ensure that directional air flows of the medical corridor (1), the buffer room (4), the ward (2) and the patient corridor (3) are formed, and when a pressure difference sensor (9) monitors that the pressure difference value between the ward (2) and the corresponding buffer room (4) is higher or lower than the set pressure difference gradient range, the air volume is immediately linked with an air exhaust control module (8) in the ward (2) to reduce or increase the air volume to operate until the normal pressure difference gradient range is recovered;
when the ward (2) is used as a common ward under the ordinary condition, a fresh air system of the power distribution type ventilation system adopts a fresh air volume changing and exhaust air volume changing control mode, air quality parameters of the ward (2) are set, when the air quality sensor (10) monitors that the air quality of the ward (2) is superior to or equal to a set value, the fresh air system and the exhaust air system normally operate, when the air quality sensor (10) monitors that the air quality of the ward (2) is inferior to the set value, the fresh air system and the exhaust air system are immediately linked with a fresh air control module (6) in the ward (2) to increase the fresh air volume, and then the exhaust air control module (8) in the ward (2) is linked to increase the exhaust air volume until the air quality sensor (10) monitors that the air quality of the ward (2) is recovered normally.
5. The ventilation control method of the negative pressure ward used in combination with the tie epidemic according to claim 4, characterized in that: under the condition of combining two using conditions, the main fresh air fan (5) and the main exhaust air fan (7) of the power distribution type ventilation system are respectively controlled by adopting a total air volume control method, namely when the deviation between the actual operation total air volume of each main fresh air fan and the superposed air volume of all fresh air exhaust control modules on a pipeline is monitored, the signal voltage of the corresponding main fresh air fan (5) or the corresponding main exhaust air fan (7) is adjusted, and the operation air volume is controlled to be increased or reduced.
6. The ventilation control method for the negative pressure ward used in combination with the tie epidemic according to claim 4 or 5, characterized in that: each ward (2) is provided with a toilet (11) and a toilet exhaust control module (13), and when the system is debugged, the pressure difference between the toilet (11) and the corresponding ward (2) is adjusted, so that the airflow of the toilet (11) is prevented from flowing back to the ward (2).
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111765579A (en) * | 2020-06-24 | 2020-10-13 | 深圳市巨鼎医疗设备有限公司 | Negative pressure control method and device for isolation ward, storage medium and isolation ward |
| CN112113303A (en) * | 2020-09-18 | 2020-12-22 | 浙江华健医用工程有限公司 | Negative pressure ward control system and method |
| CN112113302A (en) * | 2020-08-24 | 2020-12-22 | 北京机械设备研究所 | Dynamic control method and device for biological safety isolation environment |
| CN112237521A (en) * | 2020-10-11 | 2021-01-19 | 李星 | Assembled negative pressure isolation cabin |
| CN112303781A (en) * | 2020-11-12 | 2021-02-02 | 重庆建安仪器有限责任公司 | Positive and negative control system for gas cleaning of shelter |
| CN112429188A (en) * | 2020-11-06 | 2021-03-02 | 江南造船(集团)有限责任公司 | Laboratory for controlling positive air pressure and negative air pressure of ship cabin |
| CN112484201A (en) * | 2020-11-27 | 2021-03-12 | 中建三局第一建设工程有限责任公司 | Temporary emergency hospital ventilation system and method |
| CN112665080A (en) * | 2020-12-23 | 2021-04-16 | 重庆海润节能技术股份有限公司 | Ward distributed ventilation system and control method |
| CN113218013A (en) * | 2020-06-23 | 2021-08-06 | 美埃(中国)环境科技股份有限公司 | Negative pressure ward exhaust purification system |
| CN113323458A (en) * | 2021-08-04 | 2021-08-31 | 中建集成建筑有限公司 | Multi-mode ward giving consideration to both protection effect and comfort and using method thereof |
| WO2021258450A1 (en) * | 2020-06-24 | 2021-12-30 | 深圳市巨鼎医疗股份有限公司 | Method, system and device for controlling negative pressure isolation ward, and storage medium |
| CN114251766A (en) * | 2021-12-30 | 2022-03-29 | 郑州大学综合设计研究院有限公司 | Intelligent fresh air system suitable for hospital and control method |
| CN114383238A (en) * | 2022-01-18 | 2022-04-22 | 广东工业大学 | Epidemic prevention growable public negative pressure room, group and isolation prevention and control method |
| CN114439286A (en) * | 2022-01-30 | 2022-05-06 | 中建国际医疗产业发展有限公司 | Double-channel splicing modular integrated negative pressure isolation ward |
| CN114935191A (en) * | 2022-07-25 | 2022-08-23 | 广东呼研菲兰科技有限责任公司 | Ventilation control method and system for reducing cross infection of ward passing air |
| CN115628527A (en) * | 2022-12-19 | 2023-01-20 | 北京环都拓普空调有限公司 | Indoor air quality partition management method and system |
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2020
- 2020-03-20 CN CN202010202678.3A patent/CN111271789A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113218013B (en) * | 2020-06-23 | 2022-05-10 | 美埃(中国)环境科技股份有限公司 | Negative pressure ward exhaust purification system |
| CN113218013A (en) * | 2020-06-23 | 2021-08-06 | 美埃(中国)环境科技股份有限公司 | Negative pressure ward exhaust purification system |
| CN111765579B (en) * | 2020-06-24 | 2021-07-13 | 深圳市巨鼎医疗股份有限公司 | Negative pressure control method and device for isolation ward, storage medium and isolation ward |
| WO2021258450A1 (en) * | 2020-06-24 | 2021-12-30 | 深圳市巨鼎医疗股份有限公司 | Method, system and device for controlling negative pressure isolation ward, and storage medium |
| CN111765579A (en) * | 2020-06-24 | 2020-10-13 | 深圳市巨鼎医疗设备有限公司 | Negative pressure control method and device for isolation ward, storage medium and isolation ward |
| CN112113302A (en) * | 2020-08-24 | 2020-12-22 | 北京机械设备研究所 | Dynamic control method and device for biological safety isolation environment |
| CN112113303A (en) * | 2020-09-18 | 2020-12-22 | 浙江华健医用工程有限公司 | Negative pressure ward control system and method |
| CN112237521A (en) * | 2020-10-11 | 2021-01-19 | 李星 | Assembled negative pressure isolation cabin |
| CN112237521B (en) * | 2020-10-11 | 2022-06-03 | 李星 | Assembled negative pressure isolation cabin |
| CN112429188B (en) * | 2020-11-06 | 2022-07-26 | 江南造船(集团)有限责任公司 | Laboratory for controlling positive air pressure and negative air pressure states of ship cabin |
| CN112429188A (en) * | 2020-11-06 | 2021-03-02 | 江南造船(集团)有限责任公司 | Laboratory for controlling positive air pressure and negative air pressure of ship cabin |
| CN112303781A (en) * | 2020-11-12 | 2021-02-02 | 重庆建安仪器有限责任公司 | Positive and negative control system for gas cleaning of shelter |
| CN112484201A (en) * | 2020-11-27 | 2021-03-12 | 中建三局第一建设工程有限责任公司 | Temporary emergency hospital ventilation system and method |
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| 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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| CN114383238B (en) * | 2022-01-18 | 2023-04-07 | 广东工业大学 | Epidemic prevention growable public negative pressure room, group and isolation prevention and control method |
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