CN110553319A - Control method and control system for air replacement in ward - Google Patents
Control method and control system for air replacement in ward Download PDFInfo
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- CN110553319A CN110553319A CN201910773410.2A CN201910773410A CN110553319A CN 110553319 A CN110553319 A CN 110553319A CN 201910773410 A CN201910773410 A CN 201910773410A CN 110553319 A CN110553319 A CN 110553319A
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Classifications
-
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/16—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
-
- 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
- F24F2110/10—Temperature
-
- 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
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
-
- 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
- F24F2110/20—Humidity
-
- 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
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
-
- 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
- F24F2110/52—Air quality properties of the outside air
-
- 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
- F24F2110/60—Odour
-
- 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
- F24F2110/65—Concentration of specific substances or contaminants
-
- 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
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
-
- 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
-
- 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 control method and a control system for air replacement in a ward, which are characterized in that the indoor and outdoor air quality is monitored, when the outdoor air quality is poor, the indoor air bacteria concentration level is detected, and when the indoor bacteria concentration is higher than a first threshold value, an air purification device is started; when the indoor air quality is lower than the outdoor air quality, the humidity of the indoor and outdoor air is collected, and if the outdoor humidity level is higher than the indoor humidity level, an indoor ventilation system is started; and if the outdoor humidity level is lower than the indoor humidity level, judging the outdoor humidity and a second threshold value, if the outdoor humidity level is lower than the second threshold value, automatically opening the electric air window for ventilation, and otherwise, opening the indoor ventilation system. The invention selects the working mode of air replacement and purification in the ward according to the outdoor environment control, improves the ventilation effect in the ward, and realizes the purification of peculiar smell and bacteria in the air in the ward.
Description
Technical Field
The invention relates to the technical field of ventilation control, in particular to a control method and a control system for air replacement in a ward.
background
With the development of global industrialization, the population is continuously increased, and the environmental air pollution is increasingly serious. Dust, bacteria, peculiar smell and harmful gas in the air have direct influence on human health, and especially the indoor air quality is increasingly concerned by people. The quality of air in the ward of the hospital directly influences the health of patients and accompanying personnel. The sickroom is densely populated, secondary pollution and infection are easily caused by indoor breeding and residual viruses and bacteria, and the method has important significance in preventing and controlling the indoor air quality of the sickroom.
With the development of science and technology, automation is becoming the mainstream of the current development, and behind the rising automation control, people are an increasing demand for improving the quality of their lives, and electric windows are also gradually popularized, but the electric windows in the prior art have the following defects: the external natural wind is introduced into a room, but the indexes such as the quality, the humidity and the wind power of the external air are ignored, better air cannot be provided, and only the 'conveyance of the natural air' is needed, so that the requirement of people cannot be met by only circularly replacing the air in a ward through an electric wind window in practice, and the peculiar smell, bacteria and the like in the ward cannot be eliminated and purified.
Disclosure of Invention
In view of the above-mentioned shortcomings in the background art, an object of the present invention is to provide a control method for air replacement in a ward, which selects a working mode for air replacement and purification in the ward according to outdoor environment control, improves ventilation effect in the ward, and realizes purification of peculiar smell and bacteria in the ward.
In order to realize the purpose, the following technical scheme is adopted:
A control method for air replacement in a patient room, comprising the steps of:
s1, monitoring the air quality level inside the ward and the outdoor air quality level;
S2, when the air quality level in the ward is higher than the outdoor air quality level, acquiring the indoor air bacterium parameter level through an air bacterium detection device, comparing the indoor air bacterium parameter level with a preset first threshold value, and if the air bacterium parameter level is higher than the first threshold value, starting an air purification device;
S3, when the air quality level in the ward is lower than the outdoor air quality level, collecting indoor and outdoor humidity parameters, and comparing the outdoor humidity parameter level with the indoor humidity parameter level;
s4, if the outdoor humidity parameter level is higher than the indoor humidity parameter level, starting an indoor ventilation system; otherwise, go to step S5;
and S5, when the outdoor humidity parameter level is lower than the indoor humidity parameter level, comparing the outdoor humidity parameter level with a preset second threshold, if the outdoor humidity parameter level is lower than the second threshold, automatically opening the electric air window for ventilation, and otherwise, opening the indoor ventilation system.
In this embodiment, the control method further includes collecting the indoor and outdoor temperature difference parameters when the outdoor humidity parameter level is lower than the second threshold, automatically closing the electric air window and opening the indoor ventilation system if the indoor and outdoor temperature difference parameter level is higher than a preset third threshold, and otherwise, automatically opening the electric air window for ventilation.
In this embodiment, the air quality level is monitored by parameters such as carbon dioxide concentration, formaldehyde concentration, and odor concentration in the air.
In this embodiment, the control method further includes monitoring the number of indoor persons, and controlling the wind speed and the wind volume of the indoor ventilation system through the controller according to the number of indoor persons.
Another object of the present invention is to provide a control system for air replacement in a ward, the control system comprising an air quality detecting device, an air bacteria detecting device, a humidity detecting device, a data analyzing unit, a data storing unit, and a control unit;
the air quality detection device is used for acquiring the air quality level inside the current ward and the outdoor air quality level;
the air bacteria detection device is used for acquiring the concentration level of bacteria in the current ward;
The humidity detection device is used for acquiring the air humidity level inside the current ward and the outdoor air humidity level;
The data analysis unit is used for analyzing and comparing the indoor and outdoor air quality level, the current ward air bacteria level with a preset first threshold value, the indoor and outdoor air humidity level and the outdoor humidity parameter level with a second threshold value, and outputting an analysis result to the control unit;
the data storage unit is connected with the data analysis unit and used for storing the first threshold value and the second threshold value;
And the control unit is connected with the data analysis unit and used for controlling the working state of the corresponding ventilation equipment according to the analysis result.
In this embodiment, control system still includes temperature-detecting device, temperature-detecting device is used for gathering indoor outer temperature level, the inside and outside difference in temperature parameter level of analysis room.
Compared with the prior art, the invention has the following advantages:
According to the invention, by monitoring the indoor and outdoor air quality, when the outdoor air quality is poor, the indoor air bacteria concentration level is detected, and when the indoor bacteria concentration is higher than a first threshold value, the air purification device is started; when the indoor air quality is lower than the outdoor air quality, the humidity of the indoor and outdoor air is collected, and if the outdoor humidity level is higher than the indoor humidity level, an indoor ventilation system is started; and if the outdoor humidity level is lower than the indoor humidity level, judging the outdoor humidity and a second threshold value, if the outdoor humidity level is lower than the second threshold value, automatically opening the electric air window for ventilation, and otherwise, opening the indoor ventilation system. The invention selects the working mode of air replacement and purification in the ward according to the outdoor environment control, improves the ventilation effect in the ward, and realizes the purification of peculiar smell and bacteria in the air in the ward.
drawings
FIG. 1 is a flowchart illustrating the operation of the control method for air replacement in a patient room according to the present invention;
Fig. 2 is a flowchart illustrating the operation of the control method of the present invention when the indoor air quality is lower than that of the outdoor air.
Detailed Description
the following describes in detail specific embodiments of the present invention. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Example 1
A control method for air replacement in a patient room, comprising the steps of:
S1, monitoring the air quality level inside the ward and the outdoor air quality level;
s2, when the air quality level in the ward is higher than the outdoor air quality level, acquiring the indoor air bacterium parameter level through an air bacterium detection device, comparing the indoor air bacterium parameter level with a preset first threshold value, and if the air bacterium parameter level is higher than the first threshold value, starting an air purification device;
S3, when the air quality level in the ward is lower than the outdoor air quality level, collecting indoor and outdoor humidity parameters, and comparing the outdoor humidity parameter level with the indoor humidity parameter level;
s4, if the outdoor humidity parameter level is higher than the indoor humidity parameter level, starting an indoor ventilation system; otherwise, go to step S5;
In this step, if the outdoor humidity level is higher than the indoor humidity level, the humidity in the outdoor air environment is high, and it is considered that the outdoor environment may be raining and is not suitable for windowing and ventilation, so the indoor ventilation system is turned on.
And S5, when the outdoor humidity parameter level is lower than the indoor humidity parameter level, comparing the outdoor humidity parameter level with a preset second threshold, if the outdoor humidity parameter level is lower than the second threshold, automatically opening the electric air window for ventilation, and otherwise, opening the indoor ventilation system.
In this step, if the outdoor humidity level is higher than a preset second threshold, it is considered that the outdoor air environment is not suitable for windowing and ventilation, and therefore, the indoor ventilation system is started; if the outdoor humidity level is lower than the preset second threshold value, the outdoor environment air is considered to be dry, and therefore the electric air window is automatically opened to conduct ventilation.
In another embodiment, the control method further includes collecting the indoor and outdoor temperature difference parameters when the outdoor humidity parameter level is lower than a second threshold, automatically closing the electric air window and opening the indoor ventilation system if the indoor and outdoor temperature difference parameter level is higher than a preset third threshold, and otherwise, automatically opening the electric air window for ventilation.
because the patient's health resistance is lower, when the outdoor difference in temperature is great, close electronic windscreen, open indoor ventilation system, avoid causing the patient's health reaction because of the outdoor difference in temperature is higher, cause the state of an illness to change.
In this embodiment, the air quality level is monitored by parameters such as carbon dioxide concentration, formaldehyde concentration, and odor concentration in the air.
In this embodiment, the control method further includes monitoring the number of indoor persons, and controlling the wind speed and the wind volume of the indoor ventilation system through the controller according to the number of indoor persons.
When the number of people in the ward is large, the wind speed and the wind volume of the ventilation system are increased, and conversely, the wind speed and the wind volume are decreased; and when no person is in the ward, closing the ventilation system and/or the electric air window.
Example 2
A control system for air replacement in a ward, the control system comprising an air quality detection device, an air bacteria detection device, a humidity detection device, a data analysis unit, a data storage unit and a control unit;
the air quality detection device is used for acquiring the air quality level inside the current ward and the outdoor air quality level;
the air bacteria detection device is used for acquiring the concentration level of bacteria in the current ward;
the humidity detection device is used for acquiring the air humidity level inside the current ward and the outdoor air humidity level;
the data analysis unit is used for analyzing and comparing the indoor and outdoor air quality level, the current ward air bacteria level with a preset first threshold value, the indoor and outdoor air humidity level and the outdoor humidity parameter level with a second threshold value, and outputting an analysis result to the control unit;
The data storage unit is connected with the data analysis unit and used for storing the first threshold value and the second threshold value;
And the control unit is connected with the data analysis unit and used for controlling the working state of the corresponding ventilation equipment according to the analysis result.
in this embodiment, control system still includes temperature-detecting device, temperature-detecting device is used for gathering indoor outer temperature level, the inside and outside difference in temperature parameter level of analysis room.
In this embodiment, the ventilation device includes an electric window, an indoor ventilation system, and an air purification apparatus.
the foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A control method for air replacement in a patient room, comprising the steps of:
S1, monitoring the air quality level inside the ward and the outdoor air quality level;
s2, when the air quality level in the ward is higher than the outdoor air quality level, acquiring the indoor air bacterium parameter level through an air bacterium detection device, comparing the indoor air bacterium parameter level with a preset first threshold value, and if the air bacterium parameter level is higher than the first threshold value, starting an air purification device;
S3, when the air quality level in the ward is lower than the outdoor air quality level, collecting indoor and outdoor humidity parameters, and comparing the outdoor humidity parameter level with the indoor humidity parameter level;
s4, if the outdoor humidity parameter level is higher than the indoor humidity parameter level, starting an indoor ventilation system; otherwise, go to step S5;
and S5, when the outdoor humidity parameter level is lower than the indoor humidity parameter level, comparing the outdoor humidity parameter level with a preset second threshold, if the outdoor humidity parameter level is lower than the second threshold, automatically opening the electric air window for ventilation, and otherwise, opening the indoor ventilation system.
2. The method as claimed in claim 1, further comprising collecting the indoor and outdoor temperature difference parameters when the outdoor humidity parameter level is lower than a second threshold, automatically closing the electric window and opening the indoor ventilation system if the indoor and outdoor temperature difference parameter level is higher than a preset third threshold, and otherwise, automatically opening the electric window for ventilation.
3. the method as claimed in claim 1, wherein the air quality level is monitored by parameters of carbon dioxide concentration, formaldehyde concentration and odor concentration.
4. the method as claimed in claim 1, further comprising monitoring the number of persons in the room, and controlling the amount of wind speed and the amount of wind flow of the indoor ventilating system by the controller according to the number of persons in the room.
5. a control system for air replacement in a ward is characterized by comprising an air quality detection device, an air bacteria detection device, a humidity detection device, a data analysis unit, a data storage unit and a control unit;
the air quality detection device is used for acquiring the air quality level inside the current ward and the outdoor air quality level;
The air bacteria detection device is used for acquiring the concentration level of bacteria in the current ward;
The humidity detection device is used for acquiring the air humidity level inside the current ward and the outdoor air humidity level;
the data analysis unit is used for analyzing and comparing the indoor and outdoor air quality level, the current ward air bacteria level with a preset first threshold value, the indoor and outdoor air humidity level and the outdoor humidity parameter level with a second threshold value, and outputting an analysis result to the control unit;
the data storage unit is connected with the data analysis unit and used for storing the first threshold value and the second threshold value;
and the control unit is connected with the data analysis unit and used for controlling the working state of the corresponding ventilation equipment according to the analysis result.
6. the control system for room air exchange of claim 5, further comprising a temperature detection device for collecting indoor and outdoor temperature levels and analyzing indoor and outdoor temperature difference parameter levels.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773410.2A CN110553319A (en) | 2019-08-21 | 2019-08-21 | Control method and control system for air replacement in ward |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910773410.2A CN110553319A (en) | 2019-08-21 | 2019-08-21 | Control method and control system for air replacement in ward |
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| CN110553319A true CN110553319A (en) | 2019-12-10 |
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| CN201910773410.2A Pending CN110553319A (en) | 2019-08-21 | 2019-08-21 | Control method and control system for air replacement in ward |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111089403A (en) * | 2019-12-19 | 2020-05-01 | 陕西医标环境智能科技有限公司 | Ward air quality management system, method, processing terminal and readable storage medium |
| CN112413803A (en) * | 2020-11-19 | 2021-02-26 | 广东美的制冷设备有限公司 | Air purification method, air purifier and storage medium |
| CN114061083A (en) * | 2021-10-29 | 2022-02-18 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
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| CN114061083A (en) * | 2021-10-29 | 2022-02-18 | 青岛海尔空调器有限总公司 | Control method of air conditioner |
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Application publication date: 20191210 |