CN111365786A - Monitoring system and method comprising air purification and sterilization module - Google Patents

Monitoring system and method comprising air purification and sterilization module Download PDF

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Publication number
CN111365786A
CN111365786A CN202010148795.6A CN202010148795A CN111365786A CN 111365786 A CN111365786 A CN 111365786A CN 202010148795 A CN202010148795 A CN 202010148795A CN 111365786 A CN111365786 A CN 111365786A
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China
Prior art keywords
gear
module
concentration
sensor
rotating speed
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CN202010148795.6A
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CN111365786B (en
Inventor
田旭东
贾磊
樊海彬
张秀平
张伟
王雷
袁旭东
范志超
陈学东
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HEFEI GENERAL ENVIRONMENT CONTROL TECHNOLOGY CO LTD
Hefei General Machinery Research Institute Co Ltd
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HEFEI GENERAL ENVIRONMENT CONTROL TECHNOLOGY CO LTD
Hefei General Machinery Research Institute Co Ltd
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Publication of CN111365786A publication Critical patent/CN111365786A/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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
    • 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
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/52—Indication arrangements, e.g. displays
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • 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
    • 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
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • 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
    • F24F2110/20—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
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • 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
    • F24F2110/66—Volatile organic compounds [VOC]
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • F24F2110/74—Ozone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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 utility model provides a monitored control system and method including air purification degerming poison module, the system includes control module and corresponds first air purification degerming poison module, first monitoring module, the early warning module that the port is connected respectively with control module, first air purification degerming poison module includes first cavity and the multilayer processing unit of array setting in first cavity in proper order, first monitoring module includes the differential pressure sensor of pressure difference around a plurality of measurement processing unit, the pin that control module corresponds is connected with differential pressure sensor, processing unit is for dismantling the form, and every layer of processing unit is sealed with the contact surface of cavity. The invention has the advantages that: according to the invention, the automatic air purification and sterilization is realized by arranging the first air purification and sterilization module, the first monitoring module, the control module and the early warning module. Wherein pressure differential sensor's setting is used for detecting whether need replace processing unit, guarantees the filter effect, also prevents that the first drive that first fan corresponds from burning out.

Description

Monitoring system and method comprising air purification and sterilization module
Technical Field
The invention relates to the technical field of air purification and disinfection, in particular to a monitoring system and a monitoring method comprising an air purification and sterilization module.
Background
With the improvement of living standard and environmental pollution, the requirement of people on environment is increased, and the influence of the quality of public environment is great for some public places, especially for some hospitals, because the patients in hospitals are more, but the bodies of the patients are weak, the requirement on environment is higher, and therefore, the technical problems of monitoring, early warning and improvement on environment are urgently needed to be solved.
Disclosure of Invention
In order to realize monitoring, early warning and improvement on the environment, the invention provides a monitoring system and a monitoring method comprising an air purification and sterilization module.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a monitored control system including air purification degerming poison module, includes control module and corresponds first air purification degerming poison module, first monitoring module, the early warning module that the port is connected respectively with control module, first air purification degerming poison module includes first cavity and array setting in proper order at first cavity multilayer processing unit, first monitoring module includes a plurality of measure the differential pressure sensor of processing unit front and back pressure differential, the pin that control module corresponds is connected with differential pressure sensor, processing unit is for dismantling the form, and the contact surface of every layer of processing unit and cavity is sealed form.
Optimized, the processing unit is primary filter, static unit, active carbon unit, high efficiency filter, ultraviolet ray unit from the air intake to the air outlet in proper order, first air purification degerming poison module is still including ordering about the first fan of cavity from air intake flow direction air outlet, the controller realizes first fan operation and control ultraviolet ray unit work through controlling first drive.
The optimized differential pressure sensor comprises a first differential pressure sensor, a second differential pressure sensor and a third differential pressure sensor, wherein the first differential pressure sensor is used for detecting the differential pressure of the front and the back of the primary filter, the second differential pressure sensor is used for detecting the differential pressure of the front and the back of the filtering of the activated carbon unit, and the third differential pressure sensor is used for detecting the differential pressure of the front and the back of the high-efficiency filter.
Preferably, the early warning module comprises a processing unit replacement alarm and also comprises any one or more of a driving idle running alarm of the first fan, an indoor particle high concentration alarm, an ozone high concentration alarm, a carbon dioxide high concentration alarm, a formaldehyde high concentration alarm and a VOC high concentration alarm.
Preferably, the first monitoring module further comprises any one or more of an air pollutant sensor, a particulate matter concentration sensor, an infrared sensor and a temperature and humidity sensor, and the sensor installed on the first monitoring module corresponds to the alarm in the early warning module.
Optimally, when the particulate matter concentration sensor is arranged, the particulate matter concentration sensor is used for detecting the mass concentration of particles with the aerodynamic equivalent diameter of 0.3-10 mu m.
Preferably, the first air purification and disinfection module further comprises a humidifier.
Optimally, when the pollutant sensor is arranged, the air pollutant sensor comprises a formaldehyde concentration detection part, a carbon dioxide concentration detection part, an ozone detection part and a VOC detection part.
The method for using the monitoring system comprising the air purification and sterilization module comprises the steps that the first air purification and sterilization module comprises a first fan, and the first monitoring module comprises an air pollutant sensor, a particulate matter concentration sensor and an infrared sensor; the air pollutant sensor comprises a formaldehyde concentration detection part, a carbon dioxide concentration detection part, an ozone detection part and a VOC detection part;
the first fan control logic automatically judges the rotating speed of the first fan according to the following conditions:
the system is preset to be a fourth gear according to the concentration of the particulate matters, the set value of the fourth gear is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan caused by the fact that the actual concentration of the particulate matters oscillates back and forth between two gears, a return difference function is introduced into program logic, the rotating speed gear is switched when the concentration value of the particulate matters is detected to break through a gear switching value, the rotating speed is not switched for the moment after the concentration value of the particulate matters returns to the original concentration range before switching, the rotating speed gear is switched back to the original gear after the return change absolute value is larger than a set return difference value, and the rotating speed gear is not switched;
the system is preset to be in a fourth gear according to the concentration of formaldehyde, the set value of the fourth gear is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan caused by the fact that the actual formaldehyde concentration oscillates back and forth between two gears, a return difference function is introduced into program logic, the rotating speed gear is switched when the program detects that the formaldehyde concentration value breaks through a gear switching value, the rotating speed is not switched for the moment after the concentration value of the formaldehyde returns to the original concentration range before switching, the formaldehyde concentration value is switched back to the original gear after the absolute value of the return change is larger than a set return difference value, and the formaldehyde concentration value is not switched back;
the system is preset to be in a fourth gear according to the VOC concentration, the set values of the fourth gear are sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan caused by the fact that the actual VOC concentration oscillates back and forth between two gears, a return difference function is introduced into program logic, when the program detects that the VOC concentration value breaks through a gear switching value, the rotating speed gear is switched, if the VOC concentration value returns to the original concentration range before switching, the rotating speed is not switched temporarily, when the return change absolute value is larger than a set return difference value, the first fan is switched back to the original gear, and otherwise, the first fan is not switched;
if the three conditions act simultaneously, when the rotating speed gears determined by different conditions are inconsistent and even the condition with large difference occurs, the system comprehensively judges the three conditions, and the highest rotating speed gear determined by each condition is taken as the final operating rotating speed gear of the first fan.
Preferably, the first air purification and disinfection module further comprises an ultraviolet unit, wherein the ultraviolet lamp in the ultraviolet unit is controlled by control logic to be turned on and off, and the control logic is determined according to the following conditions:
setting the ultraviolet lamp to be automatically started at a ratio of 1:00-2:00 every day, and automatically limiting the ultraviolet lamp of the ultraviolet unit to be started by a program when the infrared sensor detects that a person is indoors;
when the system automatically starts the ultraviolet lamp for sterilization, if the ozone concentration in the environment is detected to exceed the upper limit value specified by the standard, the program automatically stops the operation of the ultraviolet lamp.
The invention has the advantages that:
(1) the air purifier realizes automatic purification of air by arranging the first air purification and sterilization module, the first monitoring module, the control module and the early warning module. Wherein pressure differential sensor's setting is used for detecting whether need replace processing unit, guarantees the filter effect, also prevents that the first drive that first fan corresponds from burning out.
(2) The layer-by-layer arrangement of the processing units and the arrangement of the ultraviolet units can ensure the quality of the gas entering the room. The first fan and the first driver drive the gas to enter the chamber after being processed in the chamber under the control of the control module.
(3) The three pressure difference sensors are arranged for detecting the state of the corresponding processing unit and prompting whether the corresponding processing unit needs to be replaced or not through corresponding alarm.
(4) The air pollutant sensor comprises a formaldehyde concentration detection part, an ozone sensor, a carbon dioxide concentration detection part and a VOC detection part and is used for measuring the concentration of the air pollutants; the particulate matter concentration sensor is used for testing the mass concentration of particles with aerodynamic equivalent diameters of 0.3-10 mu m, and can simultaneously measure the mass concentrations of PM0.3, PM1.0, PM2.5 and PM 10; the infrared sensor is used for detecting whether a person exists indoors or not; the temperature and humidity sensor is used for measuring air temperature and humidity parameters; the differential pressure sensor is used for measuring the air pressure difference between the front and the back of a primary filter, the air pressure difference between the front and the back of an activated carbon unit and the air pressure difference between the front and the back of a high-efficiency filter of the air purification and sterilization machine.
(5) The humidifier is provided to regulate the humidity of the air delivered to the room.
(6) The present method optimizes the air intake into the room.
Drawings
Fig. 1-2 are schematic structural views of the present invention.
The notations in the figures have the following meanings:
1-control Module
2-a first air purification and sterilization module 20-a second air purification and sterilization module
21-primary filter 22-electrostatic unit
23-active carbon unit 24-high efficiency filter 25-ultraviolet unit 26-first fan
3-first monitoring Module 30-second monitoring Module
311-first differential pressure sensor 312-second differential pressure sensor 313-third differential pressure sensor
32-air contaminant sensor 33-infrared sensor 34-temperature and humidity sensor
35-particle concentration sensor
4-early warning module
Detailed Description
As shown in fig. 1, a monitoring system including an air purification and sterilization module includes a control module 1, and a first air purification and sterilization module 2, a first monitoring module 3, and an early warning module 4 respectively connected to corresponding ports of the control module 1.
The first air purification and sterilization module 2 is used for sterilizing bacteria and toxins in the internal air, filtering air pollutants in the air flow and reducing concentration values of various harmful substances. The first monitoring module 3 is used for measuring the concentration value and various parameters of indoor air pollutants and feeding the measured parameters back to the control module 1 and the early warning module 4.
First air purification degerming poison module 2 includes first cavity and the array setting in proper order is at first cavity multilayer processing unit, first monitoring module 3 includes the pressure differential sensor of a plurality of measurement processing unit front and back pressure differential, the pin that control module 1 corresponds is connected with pressure differential sensor, processing unit is for dismantling the form, and every layer of processing unit is sealed form with the contact surface of cavity. In this embodiment, the contact surface between the processing unit and the cavity is in sawtooth engagement, and the sawtooth surface is further provided with an elastic sealing member. The provision of a differential pressure sensor may be used to determine whether the corresponding unit needs to be replaced or cleaned. The first air purification and disinfection module 2 further comprises a humidifier.
As shown in fig. 2, the processing unit comprises a primary filter 21, an electrostatic unit 22, an activated carbon unit 23, and a high efficiency filter 24 in sequence from the air inlet to the air outlet, and an ultraviolet unit 25 is further disposed in the cavity. The first air purification and disinfection module 2 further comprises a first fan 26 for driving the cavity to flow from the air inlet to the air outlet, and the controller controls the first fan 26 to operate and controls the ultraviolet unit 25 to work by controlling the first drive. The control module 1 adjusts the working states of the electrostatic unit 22, the ultraviolet unit 25 and the first fan 26 according to the concentration value of harmful substances such as indoor air pollutants collected by the first monitoring module 3 by combining with a control logic, so as to realize indoor air purification; the early warning module 4 realizes an early warning protection function according to each parameter of the indoor air collected by the first monitoring module 3, so that the system can be operated safely and efficiently, and the subsequent use and maintenance of the system are facilitated.
The differential pressure sensor comprises a first differential pressure sensor 311, a second differential pressure sensor 312 and a third differential pressure sensor 313, wherein the first differential pressure sensor 311 is used for detecting the differential pressure before and after the primary filter 21, the second differential pressure sensor 312 is used for detecting the differential pressure before and after the filtration of the activated carbon unit 23, and the third differential pressure sensor 313 is used for detecting the differential pressure before and after the high-efficiency filter 24.
The first monitoring module 3 further comprises any one or more of an air pollutant sensor 32, a particulate matter concentration sensor 35, an infrared sensor 33 and a temperature and humidity sensor 34, and the sensor installed in the first monitoring module 3 is arranged corresponding to the alarm in the early warning module 4. In this embodiment, the first monitoring module 3 comprises all sensors. Specifically, the air contaminant sensor 32 includes a formaldehyde concentration detection unit, a carbon dioxide concentration detection unit, an ozone detection unit, and a VOC detection unit. The particulate matter concentration sensor 35 is used for detecting the mass concentration of particles with aerodynamic equivalent diameter of 0.3-10 μm.
The early warning module 4 comprises a processing unit replacement alarm and also comprises any one or more of a driving idle running alarm of the first fan 26, an indoor particle high concentration alarm, an ozone high concentration alarm, a carbon dioxide high concentration alarm, a formaldehyde high concentration alarm and a VOC high concentration alarm. In this embodiment, all alarms include that all the sensors enter the industrial personal computer through the serial server in an RS485 communication mode, data acquisition, storage and analysis processing are performed by measurement and control software of the industrial personal computer, and the processed data can be used for real-time display.
The control module 1 comprises an industrial personal computer, a touch screen and a serial server, the industrial personal computer is used for storing data acquired by the first monitoring module 3, starting and adjusting corresponding equipment according to control logic and acquired data, and further controls the first fan 26 according to fan control logic, the ultraviolet unit 25 according to ultraviolet lamp control logic and the electrostatic unit 22 according to electrostatic unit 22 control logic; the touch screen is used for setting, collecting, displaying and the like of parameters; the serial server is used for inputting data collected by the first monitoring module 3 into an industrial personal computer in an RS485 communication mode, and simultaneously inputting control signals of the industrial personal computer into the static unit 22, the ultraviolet unit 25 and the first fan 26.
The control method of the monitoring system comprises the following steps:
the first fan 26 control logic automatically determines the speed of the first fan 26 from the following conditions:
the system is preset to be a fourth gear according to the concentration of the particulate matters, the set value of the fourth gear (set value is set through an operation screen) is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in fourth gear. In order to avoid frequent switching of the rotating speed gear of the first fan 26 caused by the fact that the actual concentration of the particulate matters oscillates back and forth between the two gears, a return difference function is introduced into program logic, a specific value of the return difference is set in an operation screen, the rotating speed gear is switched when the concentration value of the particulate matters is detected to break through a gear switching value, the rotating speed is not switched for the moment if the concentration value of the particulate matters returns to the original concentration range before switching, the rotating speed gear is switched back to the original gear after the return absolute value of the particulate matters is larger than the set return difference value, and the switching is not performed if the concentration value of the particulate.
The system is preset to be in a fourth gear according to the concentration of the formaldehyde, the set value of the fourth gear (the set value is set through an operation screen) is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan 26 caused by the fact that the actual formaldehyde concentration oscillates back and forth between the two gears, a return difference function is introduced into program logic, a specific value of the return difference can also be set in an operation screen, the rotating speed gear is switched when the program detects that the formaldehyde concentration value breaks through a gear switching value, the rotating speed is not switched temporarily after the formaldehyde concentration value returns to the original concentration range before switching, the rotating speed gear is switched back when the absolute value of the return difference value is larger than the set return difference value, and otherwise, the switching is not performed.
The system is preset to be in a fourth gear according to the VOC concentration, the set value of the fourth gear (the set value is set through an operation screen) is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan 26 caused by the fact that the actual VOC concentration oscillates back and forth between the two gears, a return difference function is introduced into program logic, a specific value of the return difference can also be set in an operation screen, the rotating speed gear is switched when the program detects that the VOC concentration value breaks through a gear switching value, the rotating speed is not switched temporarily after the VOC concentration value returns to the original concentration range before switching, the rotating speed gear is switched back when the absolute value of the return difference value is larger than the set return difference value, and otherwise, the rotating speed gear is not switched.
If the above three conditions are simultaneously acted, the conditions that the rotation speed gears determined by different conditions are inconsistent or even have large difference may occur, and in order to avoid the above conditions, the system comprehensively judges the above three conditions, and takes the highest rotation speed gear determined by each condition as the final operation rotation speed gear of the first fan 26.
Further, the control logic of the ultraviolet lamp controls the ultraviolet lamp to be turned on and off, and is determined by the following conditions:
setting the ultraviolet lamp to be automatically turned on at 1:00-2:00 every day, but automatically limiting the turning on of the ultraviolet lamp of the ultraviolet unit 25 by the program when the infrared sensor 33 detects that a person is in the room;
when the system automatically starts the ultraviolet lamp for sterilization, if the ozone concentration in the environment is detected to exceed the upper limit value specified by the standard, the program automatically stops the operation of the ultraviolet lamp at the moment so as to ensure the cleanliness of the environmental quality and the safety of the personnel possibly entering the environment subsequently;
further, the control logic of the electrostatic unit 22 controls the electrostatic unit 22 to be turned on and off according to the following conditions:
when the first fan 26 is started, the electrostatic unit 22 is started; when the system automatically starts the ultraviolet lamp sterilization, if the ozone concentration in the environment is detected to exceed the upper limit value specified by the standard, the program automatically stops the work of the static unit 22 at the moment so as to ensure the cleanliness of the environment quality and the safety of the personnel who may enter the environment subsequently.
The early warning value setting can be carried out on each parameter through measurement and control software in the industrial personal computer, and when any parameter is higher than the early warning value, the system automatically carries out acousto-optic early warning. The early warning module 4 ensures that the system can operate safely and efficiently, and provides reference for subsequent use and maintenance.
Further, the idle warning function includes: the system can acquire the ambient temperature in real time, and because the system is used in indoor environment, the ambient temperature is basically below 35 ℃ and not higher than 43 ℃. In order to prevent forgetting to turn off the system after the system is turned on in a long-term and false state, the first fan 26 is turned on for a long time to cause the environmental temperature to gradually rise, so that the temperature of 43 ℃ is set as a protection value, and if the temperature of the system is recorded to be higher than 43 ℃ for more than 2 hours continuously, the system can automatically stop working to prevent continuous temperature rise.
Further, the implementation of the particle high concentration early warning method is as follows: the system automatically detects the particle concentrations of 0.3 μm, 1 μm, 2.5 μm and 10 μm, different alarm values are set according to various particle concentrations, and when any particle concentration exceeds the corresponding set value, the system sends out an early warning prompt.
Further, the high concentration alarm of ozone is implemented as follows: the ozone sensor of the system automatically detects the indoor ozone concentration, and if the indoor ozone concentration exceeds a set value, the system automatically gives out early warning.
Further, the implementation of the carbon dioxide high concentration alarm is as follows: the system monitors the indoor carbon dioxide concentration in real time, and gives out early warning when the concentration exceeds an alarm set value.
Further, the implementation manner of the high-concentration formaldehyde reminder is as follows: the system monitors the indoor formaldehyde concentration in real time, and when the formaldehyde concentration exceeds a set value, the system automatically gives out early warning.
Further, the implementation manner of the high-concentration VOC reminder is as follows: the system monitors the indoor VOC concentration in real time, and when the VOC concentration exceeds a set value, the system automatically gives an early warning.
Furthermore, each processing unit replacement reminding implementation mode is as follows: when the differential pressure sensor corresponding to the processing unit exceeds a set value, the dirty blockage of the primary filter 21 is represented, and at the moment, the system automatically sends out early warning to remind the replacement of the primary filter 21.
Optimized, air intake department is provided with return air pipeline export and fresh air pipeline export, still includes the second fan and orders about the second drive of second fan motion, the system is still including setting up second air purification and remove the bacterial poison module 20, the second monitoring module 30 at the air exit, and second air purification and remove the bacterial poison module 20, the second monitoring module 30 the same structure. The second air purification and sterilization module 20, the second monitoring module 30 and the second driver realize data transmission and control with the control module 1 through the bluetooth module. The air inlet and the air outlet are oppositely arranged on different wall surfaces. The arrangement of the fresh air inlet, the return air inlet and the air outlet, and the arrangement of the second air purification and sterilization module 20 and the second monitoring module 30 at the air outlet enable the indoor air to be safely replaced with the outside air. The air inlet and the air outlet are arranged at positions, so that indoor air can be optimized more thoroughly. Wherein the control module 1 realizes monitoring through the second air purification and sterilization module 20 and the second monitoring module 30, and the mode of the second air purification and sterilization module 20 and the second monitoring module 30 with the control module 1 and the early warning module 4 is the same as the mode of the first air purification and sterilization module and the first monitoring module, and is not repeated here. The control module controls the working modes of the second air purification and sterilization module 20 and the second monitoring module 30 to be controlled according to the set value, which is not protected by the present application.
The invention is not to be considered as limited to the specific embodiments shown and described, but is to be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The utility model provides a monitored control system including air purification degerming poison module, a serial communication port, correspond first air purification degerming poison module (2), first monitoring module (3), early warning module (4) that the port is connected respectively including control module (1) and with control module (1), first air purification degerming poison module (2) includes first cavity and array setting in proper order at first cavity multilayer processing unit, first monitoring module (3) include the pressure differential sensor of pressure differential around a plurality of measurement processing unit, the pin that control module (1) corresponds is connected with pressure differential sensor, processing unit is for dismantling the form, and the contact surface of every layer of processing unit and cavity is sealed form.
2. The monitoring system comprising the air purification and sterilization module according to claim 1, wherein the processing unit comprises a primary filter (21), an electrostatic unit (22), an activated carbon unit (23) and a high efficiency filter (24) in sequence from an air inlet to an air outlet, an ultraviolet unit (25) is further arranged in the cavity, the first air purification and sterilization module (2) further comprises a first fan (26) for driving the cavity to flow from the air inlet to the air outlet, and the controller controls the first fan (26) to operate and controls the ultraviolet unit (25) to operate by controlling the first drive.
3. A monitoring system comprising an air purification and disinfection module according to claim 2, wherein the differential pressure sensor comprises a first differential pressure sensor (311), a second differential pressure sensor (312) and a third differential pressure sensor (313), the first differential pressure sensor (311) is used for detecting the differential pressure before and after the primary filter (21), the second differential pressure sensor (312) is used for detecting the differential pressure before and after the filtration of the activated carbon unit (23), and the third differential pressure sensor (313) is used for detecting the differential pressure before and after the high efficiency filter (24).
4. The monitoring system comprising the air purification and sterilization module as claimed in claim 2, wherein the early warning module (4) comprises a processing unit replacement alarm, and further comprises any one or more of a driving idle alarm of the first fan (26), an indoor particle high concentration alarm, an ozone high concentration alarm, a carbon dioxide high concentration alarm, a formaldehyde high concentration alarm and a VOC high concentration alarm.
5. The monitoring system comprising the air purification and sterilization module according to claim 4, wherein the first monitoring module (3) further comprises one or more of an air pollutant sensor (32), a particulate matter concentration sensor (35), an infrared sensor (33) and a temperature and humidity sensor (34), and the sensor installed in the first monitoring module (3) is set corresponding to the alarm in the early warning module (4).
6. A monitoring system comprising an air decontamination and detoxification module according to claim 5, wherein the particulate matter concentration sensor (35) is adapted to detect the mass concentration of particles having an aerodynamic equivalent diameter of between 0.3 μm and 10 μm when the particulate matter concentration sensor (35) is provided.
7. A monitoring system comprising an air decontamination and detoxification module according to claim 5, wherein when a contaminant sensor is provided, the air contaminant sensor (32) comprises a formaldehyde concentration detection portion, a carbon dioxide concentration detection portion, an ozone detection portion, and a VOC detection portion.
8. A monitoring system comprising an air purification and disinfection module according to claim 4, characterised in that the first air purification and disinfection module (2) further comprises a humidifier.
9. A method of using a monitoring system comprising an air decontamination and detoxification module according to any of the claims 1-8, wherein the first air decontamination and detoxification module (2) comprises a first fan (26), and the first monitoring module (3) comprises an air contaminant sensor (32), a particulate matter concentration sensor (35), an infrared sensor (33); the air pollutant sensor (32) comprises a formaldehyde concentration detection part, a carbon dioxide concentration detection part, an ozone detection part and a VOC detection part;
the first fan (26) control logic automatically determines the rotation speed of the first fan (26) according to the following conditions:
the system is preset to be a fourth gear according to the concentration of the particulate matters, the set value of the fourth gear is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan (26) caused by the fact that the actual concentration of the particulate matters oscillates back and forth between two gears, a return difference function is introduced into program logic, the rotating speed gear is switched when the concentration value of the particulate matters is detected to break through a gear switching value, the rotating speed is not switched for a while after the concentration value of the particulate matters returns to the original concentration range before switching, the rotating speed gear is switched back to the original gear after the return absolute value of the particulate matters is larger than a set return difference value, and otherwise, the rotating speed gear is not switched;
the system is preset to be in a fourth gear according to the concentration of formaldehyde, the set value of the fourth gear is sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan (26) caused by the fact that the actual formaldehyde concentration oscillates back and forth between two gears, a return difference function is introduced into the program logic, when the program detects that the formaldehyde concentration value breaks through the gear switching value, the rotating speed gear is switched, if the formaldehyde concentration value returns to the original concentration range before switching, the rotating speed is not switched temporarily, when the return absolute value is larger than the set return difference value, the original gear is switched again, and otherwise, the switching is not performed;
the system is preset to be in a fourth gear according to the VOC concentration, the set values of the fourth gear are sequentially increased, the hyperstatic rotating speed is used in the first gear, the low speed is used in the second gear, and the medium speed is used in the third gear; high speed is used in the fourth gear; in order to avoid frequent switching of the rotating speed gear of the first fan (26) caused by the fact that the actual VOC concentration oscillates back and forth between two gears, a return difference function is introduced into the program logic, when the program detects that the VOC concentration value breaks through the gear switching value, the rotating speed gear is switched, if the VOC concentration value returns to the original concentration range before switching, the rotating speed is not switched temporarily, when the return absolute value is larger than the set return difference value, the VOC concentration value is switched back to the original gear, and otherwise, the VOC concentration value is not switched;
if the three conditions act simultaneously, when the rotating speed gears determined by different conditions are inconsistent and even the condition with large difference occurs, the system comprehensively judges the three conditions, and the highest rotating speed gear determined by each condition is taken as the final operating rotating speed gear of the first fan (26).
10. The method according to claim 9, wherein the first air decontamination and disinfection module (2) further comprises an ultraviolet light unit (25), wherein control logic of ultraviolet light in the ultraviolet light unit (25) controls the turning on and off of the ultraviolet light, determined by the following conditions:
setting the ultraviolet lamp of the ultraviolet unit (25) to be automatically turned on at 1:00-2:00 every day, and automatically limiting the turning on of the ultraviolet lamp by the program when the infrared sensor (33) detects that a person is in the room;
when the system automatically starts the ultraviolet lamp for sterilization, if the ozone concentration in the environment is detected to exceed the upper limit value specified by the standard, the program automatically stops the operation of the ultraviolet lamp.
CN202010148795.6A 2020-03-05 2020-03-05 Control method of monitoring system comprising air purification and sterilization module Active CN111365786B (en)

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