CN110608485A - Indoor oxygen concentration rapid regulation and control device and regulation and control method thereof - Google Patents
Indoor oxygen concentration rapid regulation and control device and regulation and control method thereof Download PDFInfo
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- CN110608485A CN110608485A CN201910814913.XA CN201910814913A CN110608485A CN 110608485 A CN110608485 A CN 110608485A CN 201910814913 A CN201910814913 A CN 201910814913A CN 110608485 A CN110608485 A CN 110608485A
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 104
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 104
- 239000001301 oxygen Substances 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 20
- 230000008878 coupling Effects 0.000 claims abstract description 45
- 238000010168 coupling process Methods 0.000 claims abstract description 45
- 238000005859 coupling reaction Methods 0.000 claims abstract description 45
- 238000004887 air purification Methods 0.000 claims abstract description 26
- 238000000746 purification Methods 0.000 claims description 46
- 230000009471 action Effects 0.000 claims description 16
- 238000001514 detection method Methods 0.000 claims description 15
- 230000001276 controlling effect Effects 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 9
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 238000007599 discharging Methods 0.000 claims description 6
- 230000003993 interaction Effects 0.000 claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 8
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract description 4
- 239000001569 carbon dioxide Substances 0.000 abstract description 4
- 230000001502 supplementing effect Effects 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 2
- 206010019233 Headaches Diseases 0.000 description 1
- 206010028813 Nausea Diseases 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 206010047700 Vomiting Diseases 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000002173 dizziness Diseases 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008693 nausea Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- -1 uses for a long time Chemical compound 0.000 description 1
- 230000008673 vomiting Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/54—Control or safety arrangements characterised by user interfaces or communication using one central controller connected to several sub-controllers
-
- 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
- F24F11/62—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
- F24F11/65—Electronic processing for selecting an operating mode
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/60—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by adding oxygen
-
- 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
- F24F2110/76—Oxygen
Abstract
The invention discloses a rapid regulation and control device for indoor oxygen concentration and a regulation and control method thereof, wherein an indoor air circulating and purifying mode is adopted under the common condition to complete the circulating and purifying of indoor air; when the oxygen concentration is reduced because no fresh air enters indoors for a long time, entering a fresh air purification coupling mode, and supplementing outdoor fresh air to the indoor space while purifying the indoor air so as to gradually improve the indoor oxygen concentration; if indoor personnel gather, indoor oxygen is rapidly consumed, so that the indoor oxygen concentration is rapidly reduced, when the oxygen input by the fresh air purification coupling mode cannot maintain the indoor oxygen demand, the outdoor fresh air purification mode is entered, a large amount of outdoor fresh air enters the room after being purified, and a large amount of carbon dioxide in the indoor air is discharged to the outside, so that the oxygen concentration of the indoor air is rapidly increased; the invention utilizes the existing fresh air coupling system to realize the rapid regulation and control of the indoor oxygen concentration without adding expensive equipment.
Description
Technical Field
The invention belongs to the technical field of indoor air purification equipment, and relates to a device and a method for quickly regulating and controlling indoor oxygen concentration.
Background
Traditional air purifier need close door and window during the use, and the room is in airtight state, though can purify indoor air, however, does not have fresh air to get into, and indoor personnel consume oxygen, uses for a long time, and oxygen reduces gradually, and the indoor oxygen concentration descends. The consequence is: light, dizziness, lassitude; severe cases, headache, nausea, regurgitation and vomiting; it can cause shock and even death in severe cases.
At present, generally, fresh air coupling system is adopted in the market to realize supplying oxygen for the room, and it is mainly to be inputed indoor with outdoor air and indoor air after purifying the coupling, can not only get rid of indoor pollution, has the effect of indoor air of purification, can improve the content of oxygen in the indoor air moreover, however, to the room that the personnel highly concentrated, for example: in schools, kindergartens, nursery centers, meeting rooms, markets and the like, because a large amount of oxygen is consumed by personnel, the fresh air coupling system needs to supplement the indoor oxygen by increasing the rotating speed of a fresh air fan and increasing the fresh air quantity, but the method is limited by the function of the fan, and the rapid improvement of the indoor oxygen concentration cannot be realized.
Disclosure of Invention
The invention aims to provide a device and a method for quickly regulating and controlling the indoor oxygen concentration, which utilize the existing fresh air coupling system to realize the quick regulation and control of the indoor oxygen concentration under the condition of not increasing expensive equipment.
The purpose of the invention can be realized by the following technical scheme:
a device for quickly regulating and controlling the concentration of indoor oxygen comprises a first purification cavity and a second purification cavity, wherein the air inlet end of the first purification cavity is connected with an air inlet channel of a total heat exchanger through a first air inlet pipe, and the air inlet channel of the total heat exchanger is connected with an external air inlet;
the middle part of the first air inlet pipe is connected with a second air inlet pipe, and the second air inlet pipe is connected with a first internal air inlet;
the air inlet end of the second purifying cavity is connected with a third air inlet pipe, and the third air inlet pipe is connected with a second internal air inlet;
the air outlet end of the first purifying cavity is connected with the first air inlet end of the Y-shaped coupling pipe through a first air outlet pipe, and the air outlet end of the second purifying cavity is connected with the second air inlet end of the Y-shaped coupling pipe through a second air outlet pipe;
the middle part of the second air outlet pipe is connected with an air outlet channel of the total heat exchanger through a third air outlet pipe, and the air outlet channel of the total heat exchanger is connected with an external air outlet;
and the air outlet end of the Y-shaped coupling pipe is connected with an indoor air outlet.
Further, first purification cavity is inside to be equipped with first fan and first air purifier, the second purifies cavity is inside to be equipped with second fan and second air purifier.
Further, be equipped with first solenoid valve between first intake pipe and the total heat exchanger, be equipped with the second solenoid valve between second intake pipe and the first inside air inlet, be equipped with the third solenoid valve between second outlet duct and the Y type coupling pipe, be equipped with the fourth solenoid valve between second outlet duct and the third outlet duct.
Furthermore, the air purifier comprises three working modes, namely an indoor air circulation purification mode, a fresh air purification coupling mode and an outdoor fresh air purification mode, and is controlled by a control system.
Furthermore, the control system comprises an oxygen detection sensor, a central processing unit, a man-machine interaction module, a mode selection module and a control output module;
the oxygen detection sensor is used for acquiring indoor oxygen concentration data in real time and sending the indoor oxygen concentration data to the central processing unit;
the central processing unit receives indoor oxygen concentration data output by the oxygen detection sensor and sends a control signal to the mode selection module to select a working mode according to a preset oxygen concentration threshold;
the human-computer interaction module is used for inputting the oxygen concentration threshold value of each working mode of the device in advance for the central processing unit to call;
and the mode selection module selects a working mode according to the control signal output by the central processing unit and outputs the working mode to the control output module.
And the control output module outputs a control instruction of a corresponding mode according to the working mode selected by the mode selection module, and controls the device to work.
The regulation and control method of the indoor oxygen concentration rapid regulation and control device specifically comprises the following steps:
step S1, after the indoor oxygen concentration rapid regulation and control device is started, the indoor air circulation purification mode is entered by default, the control system outputs a control instruction to control the first fan and the first air purifier to be powered off, control the second fan and the second air purifier to be powered on and work, simultaneously close the first electromagnetic valve, the second electromagnetic valve and the fourth electromagnetic valve, open the third electromagnetic valve, at the moment, the indoor air is sucked into the second purification cavity from the second internal air inlet under the action of the second fan, and is discharged into the room from the internal air outlet through the second air outlet pipe and the Y-shaped coupling pipe after being purified by the second air purifier, and in the process, the steps S2-S3 are synchronously executed;
step S2, the oxygen detection sensor collects indoor oxygen concentration data in real time and sends the data to the central processing unit;
step S3, the central year processor analyzes the received oxygen concentration data, and executes step S1 when the indoor oxygen concentration is higher than a preset first threshold, executes step S4 when the indoor oxygen concentration is lower than the preset first threshold and higher than a preset second threshold, and executes step S5 when the indoor oxygen concentration is lower than the preset second threshold;
step S4, entering a fresh air purification coupling mode, outputting a control command by a control system to control a first fan and a first air purifier to be electrified and work, controlling a second fan and a second air purifier to be powered off, simultaneously opening a first electromagnetic valve and a second electromagnetic valve, closing a third electromagnetic valve and a fourth electromagnetic valve, sucking indoor air from a first internal air inlet under the action of the first fan, entering a first purification cavity through a second air inlet pipe and a first air inlet pipe, sucking outdoor air from an external air inlet, entering the first purification cavity through the first air inlet pipe, purifying the indoor air by the first air purifier, and discharging the indoor air from an internal air outlet through a first air outlet pipe and a Y-shaped coupling pipe, wherein in the process, the steps S2-S3 are synchronously executed;
and S5, entering an outdoor fresh air purification mode, outputting a control command by a control system to control the first fan, the second fan and the first air purifier to work in an electrifying mode, controlling the second air purifier to be powered off, simultaneously opening the first electromagnetic valve and the fourth electromagnetic valve, closing the second electromagnetic valve and the third electromagnetic valve, sucking outdoor air from an external air inlet under the action of the first fan, entering the first purification cavity through a first air inlet pipe, purifying the outdoor air by the first air purifier, discharging the purified outdoor air into a room from an internal air outlet through a first air outlet pipe and a Y-shaped coupling pipe, sucking indoor air into the second purification cavity through a second internal air inlet under the action of the second fan, and discharging the indoor air out of the room from the external air outlet through a second air outlet pipe and a third air outlet pipe, and synchronously executing the steps S2-S3 in the process.
The invention has the beneficial effects that: according to the indoor oxygen concentration rapid regulation and control device and the regulation and control method thereof, an indoor air circulating purification mode is adopted under a common condition, so that the circulating purification of indoor air is completed; when the oxygen concentration is reduced because no fresh air enters indoors for a long time, entering a fresh air purification coupling mode, and supplementing outdoor fresh air to the indoor space while purifying the indoor air so as to gradually improve the indoor oxygen concentration; if indoor personnel gather, indoor oxygen is rapidly consumed, so that the indoor oxygen concentration is rapidly reduced, when the oxygen input by the fresh air purification coupling mode cannot maintain the indoor oxygen demand, the outdoor fresh air purification mode is entered, a large amount of outdoor fresh air enters the room after being purified, and a large amount of carbon dioxide in the indoor air is discharged to the outside, so that the oxygen concentration of the indoor air is rapidly increased; the invention utilizes the existing fresh air coupling system to realize the rapid regulation and control of the indoor oxygen concentration without adding expensive equipment.
Drawings
The invention is described in further detail below with reference to the figures and specific embodiments.
FIG. 1 is a structural schematic of the present invention.
Fig. 2 is a schematic diagram of the control system of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "opening," "upper," "lower," "thickness," "top," "middle," "length," "inner," "peripheral," and the like are used in an orientation or positional relationship that is merely for convenience in describing and simplifying the description, and do not indicate or imply that the referenced component or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present invention.
As shown in fig. 1, the present invention provides a rapid indoor oxygen concentration control device, which includes a first purification chamber 1 and a second purification chamber 2 disposed indoors, wherein a first fan 101 and a first air purifier 102 are disposed inside the first purification chamber 1, and a second fan 201 and a second air purifier 202 are disposed inside the second purification chamber 2.
The air inlet end of the first purifying cavity 1 is connected with an air inlet channel of the total heat exchanger 4 through a first air inlet pipe 3, and the other end of the air inlet channel of the total heat exchanger 4 is connected with an external air inlet 5 arranged outdoors.
The middle part of first intake pipe 3 is connected with second intake pipe 6, and second intake pipe 6 connects and sets up the indoor first inside air inlet 7.
The air inlet end of the second purifying cavity 2 is connected with a third air inlet pipe 8, and the third air inlet pipe 8 is connected with a second inner air inlet 9 arranged indoors.
The air outlet end of the first purifying cavity 1 is connected with the first air inlet end of the Y-shaped coupling pipe 11 through a first air outlet pipe 10, and the air outlet end of the second purifying cavity 2 is connected with the second air inlet end of the Y-shaped coupling pipe 11 through a second air outlet pipe 12.
The middle part of the second air outlet pipe 12 is connected with an air outlet channel of the total heat exchanger 4 through a third air outlet pipe 13, and the other end of the air outlet channel of the total heat exchanger 4 is connected with an outdoor external air outlet 14.
The air outlet end of the Y-shaped coupling pipe 11 is connected with an internal air outlet 15 arranged indoors.
A first electromagnetic valve 16 is arranged between the first air inlet pipe 3 and the total heat exchanger 4, a second electromagnetic valve 17 is arranged between the second air inlet pipe 6 and the first internal air inlet 7, a third electromagnetic valve 18 is arranged between the second air outlet pipe 12 and the Y-shaped coupling pipe 11, and a fourth electromagnetic valve 19 is arranged between the second air outlet pipe 12 and the third air outlet pipe 13.
When the indoor oxygen concentration rapid regulation and control device provided by the invention works, the device comprises three working modes, namely an indoor air circulation purification mode, a fresh air purification coupling mode and an outdoor fresh air purification mode, and is controlled by a control system of the device.
As shown in fig. 2, a control system of an indoor oxygen concentration rapid regulation and control device includes an oxygen detection sensor, a central processing unit, a human-computer interaction module, a mode selection module, and a control output module.
The oxygen detection sensor is arranged indoors and used for collecting indoor oxygen concentration data in real time and sending the data to the central processing unit.
And the central processing unit is used for receiving the indoor oxygen concentration data output by the oxygen detection sensor and sending a control signal to the mode selection module to select a corresponding working mode according to a preset oxygen concentration threshold value.
And the human-computer interaction module is used for inputting the oxygen concentration threshold of each working mode of the device in advance for the central processing unit to call.
And the mode selection module selects a corresponding working mode according to the control signal output by the central processing unit and outputs the working mode to the control output module. The working mode comprises an indoor air circulation purification mode, a fresh air purification coupling mode and an outdoor fresh air purification mode.
And the control output module outputs a control instruction of a corresponding mode according to the working mode selected by the mode selection module, and controls the device to work.
Specifically, when the oxygen detection sensor detects that the indoor oxygen concentration is higher than a preset first threshold value, the system selects to enter an indoor air circulation purification mode, a control command is output to control the first fan 101 and the first air purifier 102 to be powered off, the second fan 201 and the second air purifier 202 to be powered on and work, meanwhile, the first electromagnetic valve 16, the second electromagnetic valve 17 and the fourth electromagnetic valve 19 are closed, the third electromagnetic valve 18 is opened, at the moment, indoor air is sucked into the second purification cavity 2 through the second internal air inlet 9 under the action of the second fan 201, and is purified through the second air purifier 202 and then is discharged into the room through the second air outlet pipe 12 and the Y-shaped coupling pipe 11 and the internal air outlet 15, so that the circulation purification of the indoor air is completed, the stability of the indoor temperature and humidity environment is guaranteed, and the energy consumption of equipment such as an air conditioner is reduced.
When the oxygen detection sensor detects that the indoor oxygen concentration is lower than a preset first threshold value and higher than a preset second threshold value, the system selects to enter a fresh air purification coupling mode, outputs a control instruction to control the first fan 101 and the first air purifier 102 to work in an electrifying mode, controls the second fan 201 and the second air purifier 202 to be powered off, simultaneously opens the first electromagnetic valve 16 and the second electromagnetic valve 17, closes the third electromagnetic valve 18 and the fourth electromagnetic valve 19, at the moment, under the action of the first fan 101, indoor air is sucked in from the first internal air inlet 7, enters the first purification cavity 1 through the second air inlet pipe 6 and the first air inlet pipe 3, outdoor air is sucked in from the external air inlet 5, enters the first purification cavity 1 through the first air inlet pipe 3, is purified through the first air purifier 102, and is discharged into a room from the internal air outlet 15 through the first air outlet pipe 10 and the Y-shaped coupling pipe 11, when purifying indoor air, supply outdoor new trend to indoor, improve indoor oxygen concentration, because there is outdoor new trend to send into indoor but no fan take indoor air out outdoors, the pressure-fired that indoor production can be followed the room air and slowly discharged outdoor in the original seam hole in the room space, also can block outdoor dirty air to get into indoorly simultaneously to inside gas outlet 15 air-out has fused outdoor new trend and the indoor air after the purification, and its humiture change is also little.
When the oxygen detection sensor detects that the indoor oxygen concentration is lower than a preset second threshold value, the system selects to enter an outdoor fresh air purification mode, outputs a control instruction to control the first fan 101, the second fan 201 and the first air purifier 102 to be powered on and work, controls the second air purifier 202 to be powered off, simultaneously opens the first electromagnetic valve 16 and the fourth electromagnetic valve 19, closes the second electromagnetic valve 17 and the third electromagnetic valve 18, at the moment, under the action of the first fan 101, outdoor air is sucked in from the external air inlet 5, enters the first purification cavity 1 through the first air inlet pipe 3, is purified through the first air purifier 102, is discharged into the room through the first air outlet pipe 10 and the Y-shaped coupling pipe 11 and the internal air outlet 15, indoor air is sucked into the second purification cavity 2 through the second internal air inlet 9 under the action of the second fan 201, and is discharged out of the room through the external air outlet 14 through the second air outlet pipe 12 and the third air outlet pipe 13, at the moment, a large amount of outdoor fresh air enters the room after being purified, and a large amount of carbon dioxide in the indoor air is discharged to the outside, so that the oxygen concentration of the indoor air is rapidly improved, the rapid regulation and control are realized, meanwhile, the temperature and humidity exchange of the outdoor fresh air entering the room and the outdoor air discharged from the room is completed in the total heat exchanger 4, and the temperature and humidity stability of the indoor air is kept as much as possible.
A regulation and control method of an indoor oxygen concentration rapid regulation and control device specifically comprises the following steps:
step S1, after the indoor oxygen concentration rapid regulation and control device is started, the indoor air circulation purification mode is entered by default, the control system outputs a control instruction to control the first fan 101 and the first air purifier 102 to be powered off, control the second fan 201 and the second air purifier 202 to be powered on and work, simultaneously close the first electromagnetic valve 16, the second electromagnetic valve 17 and the fourth electromagnetic valve 19, open the third electromagnetic valve 18, at the moment, the indoor air is sucked into the second purification cavity 2 through the second internal air inlet 9 under the action of the second fan 201, is purified through the second air purifier 202, and is discharged into the room through the second air outlet pipe 12 and the Y-shaped coupling pipe 11 and the internal air outlet 15, and in the process, the steps S2-S3 are executed synchronously.
And step S2, the oxygen detection sensor collects indoor oxygen concentration data in real time and sends the data to the central processing unit.
In step S3, the cpu analyzes the received oxygen concentration data, and performs step S1 when the indoor oxygen concentration is higher than a preset first threshold, performs step S4 when the indoor oxygen concentration is lower than the preset first threshold and higher than a preset second threshold, and performs step S5 when the indoor oxygen concentration is lower than the preset second threshold.
Step S4, entering a fresh air purification coupling mode, outputting a control command by a control system to control the first fan 101 and the first air purifier 102 to work in an electrifying mode, controlling the second fan 201 and the second air purifier 202 to be powered off, simultaneously opening the first electromagnetic valve 16 and the second electromagnetic valve 17, closing the third electromagnetic valve 18 and the fourth electromagnetic valve 19, at the moment, under the action of the first fan 101, indoor air is sucked in from the first internal air inlet 7, enters the first purification cavity 1 through the second air inlet pipe 6 and the first air inlet pipe 3, outdoor air is sucked in from the external air inlet 5, enters the first purification cavity 1 through the first air inlet pipe 3, is purified by the first air purifier 102, and is discharged into a room from the internal air outlet 15 through the first air outlet pipe 10 and the Y-shaped coupling pipe 11, and in the process, synchronously executing the step S2-step S3.
Step S5, entering into an outdoor fresh air purification mode, outputting a control instruction by the control system to control the first fan 101, the second fan 201 and the first air purifier 102 to work in an electrified mode, controlling the second air purifier 202 to work in a power-off mode, simultaneously, the first solenoid valve 16 and the fourth solenoid valve 19 are opened, and the second solenoid valve 17 and the third solenoid valve 18 are closed, at this time, under the action of the first fan 101, outdoor air is sucked in from the external air inlet 5 and enters the first purifying cavity 1 through the first air inlet pipe 3, after being purified by the first air purifier 102, the indoor air is exhausted into the room from the internal air outlet 15 through the first air outlet pipe 10 and the Y-shaped coupling pipe 11, the indoor air is sucked into the second purifying cavity 2 from the second internal air inlet 9 under the action of the second fan 201, and is exhausted out of the room from the external air outlet 14 through the second air outlet pipe 12 and the third air outlet pipe 13, and in the process, the steps S2 to S3 are synchronously executed.
According to the indoor oxygen concentration rapid regulation and control device and the regulation and control method thereof, an indoor air circulating purification mode is adopted under a common condition, so that the circulating purification of indoor air is completed; when the oxygen concentration is reduced because no fresh air enters indoors for a long time, entering a fresh air purification coupling mode, and supplementing outdoor fresh air to the indoor space while purifying the indoor air so as to gradually improve the indoor oxygen concentration; if indoor personnel gather, indoor oxygen is rapidly consumed, so that the indoor oxygen concentration is rapidly reduced, when the oxygen input by the fresh air purification coupling mode cannot maintain the indoor oxygen demand, the outdoor fresh air purification mode is entered, a large amount of outdoor fresh air enters the room after being purified, and a large amount of carbon dioxide in the indoor air is discharged to the outside, so that the oxygen concentration of the indoor air is rapidly increased; the invention utilizes the existing fresh air coupling system to realize the rapid regulation and control of the indoor oxygen concentration without adding expensive equipment.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is merely exemplary and illustrative of the present invention and various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the scope of the invention as defined in the following claims.
Claims (6)
1. The indoor oxygen concentration rapid regulation and control device is characterized by comprising a first purification cavity (1) and a second purification cavity (2), wherein the air inlet end of the first purification cavity (1) is connected with an air inlet channel of a total heat exchanger (4) through a first air inlet pipe (3), and the air inlet channel of the total heat exchanger (4) is connected with an external air inlet (5);
the middle part of the first air inlet pipe (3) is connected with a second air inlet pipe (6), and the second air inlet pipe (6) is connected with a first internal air inlet (7);
the air inlet end of the second purifying cavity (2) is connected with a third air inlet pipe (8), and the third air inlet pipe (8) is connected with a second internal air inlet (9);
the air outlet end of the first purifying cavity (1) is connected with the first air inlet end of the Y-shaped coupling pipe (11) through a first air outlet pipe (10), and the air outlet end of the second purifying cavity (2) is connected with the second air inlet end of the Y-shaped coupling pipe (11) through a second air outlet pipe (12);
the middle part of the second air outlet pipe (12) is connected with an air outlet channel of the total heat exchanger (4) through a third air outlet pipe (13), and the air outlet channel of the total heat exchanger (4) is connected with an external air outlet (14);
and the air outlet end of the Y-shaped coupling pipe (11) is connected with an indoor air outlet (15).
2. The indoor oxygen concentration rapid regulation and control device according to claim 1, wherein a first fan (101) and a first air purifier (102) are arranged inside the first purification cavity (1), and a second fan (201) and a second air purifier (202) are arranged inside the second purification cavity (2).
3. The device for rapidly regulating and controlling the concentration of indoor oxygen according to claim 1, wherein a first electromagnetic valve (16) is arranged between the first air inlet pipe (3) and the total heat exchanger (4), a second electromagnetic valve (17) is arranged between the second air inlet pipe (6) and the first internal air inlet (7), a third electromagnetic valve (18) is arranged between the second air outlet pipe (12) and the Y-shaped coupling pipe (11), and a fourth electromagnetic valve (19) is arranged between the second air outlet pipe (12) and the third air outlet pipe (13).
4. The device for rapidly regulating and controlling the concentration of the indoor oxygen according to claim 1, wherein the device comprises three working modes, namely an indoor air circulation purification mode, a fresh air purification coupling mode and an outdoor fresh air purification mode, and is controlled by a control system.
5. The indoor oxygen concentration rapid regulation and control device of claim 4, wherein the control system comprises an oxygen detection sensor, a central processing unit, a human-computer interaction module, a mode selection module and a control output module;
the oxygen detection sensor is used for acquiring indoor oxygen concentration data in real time and sending the indoor oxygen concentration data to the central processing unit;
the central processing unit receives indoor oxygen concentration data output by the oxygen detection sensor and sends a control signal to the mode selection module to select a working mode according to a preset oxygen concentration threshold;
the human-computer interaction module is used for inputting the oxygen concentration threshold value of each working mode of the device in advance for the central processing unit to call;
the mode selection module selects a working mode according to a control signal output by the central processing unit and outputs the working mode to the control output module;
and the control output module outputs a control instruction of a corresponding mode according to the working mode selected by the mode selection module, and controls the device to work.
6. A regulating method of a rapid indoor oxygen concentration regulating device according to any one of claims 1 to 5, comprising the steps of:
step S1, after the indoor oxygen concentration rapid regulation and control device is started, the indoor air circulation purification mode is entered by default, the control system outputs a control instruction to control the first fan (101) and the first air purifier (102) to be powered off, control the second fan (201) and the second air purifier (202) to be powered on and work, simultaneously close the first electromagnetic valve (16), the second electromagnetic valve (17) and the fourth electromagnetic valve (19), open the third electromagnetic valve (18), at the moment, the indoor air is sucked into the second purification cavity (2) through the second internal air inlet (9) under the action of the second fan (201), and is purified through the second air purifier (202), and then is discharged into the room through the second air outlet pipe (12) and the Y-shaped coupling pipe (11) and the step S2-step S3 are synchronously executed in the process;
step S2, the oxygen detection sensor collects indoor oxygen concentration data in real time and sends the data to the central processing unit;
step S3, the central year processor analyzes the received oxygen concentration data, and executes step S1 when the indoor oxygen concentration is higher than a preset first threshold, executes step S4 when the indoor oxygen concentration is lower than the preset first threshold and higher than a preset second threshold, and executes step S5 when the indoor oxygen concentration is lower than the preset second threshold;
step S4, entering a fresh air purification coupling mode, outputting a control instruction by a control system to control a first fan (101) and a first air purifier (102) to work in an electrified mode, controlling a second fan (201) and a second air purifier (202) to be powered off, simultaneously opening a first electromagnetic valve (16) and a second electromagnetic valve (17), closing a third electromagnetic valve (18) and a fourth electromagnetic valve (19), sucking indoor air through a first internal air inlet (7) under the action of the first fan (101), entering a first purification cavity (1) through a second air inlet pipe (6) and a first air inlet pipe (3), sucking outdoor air through an external air inlet (5), entering the first purification cavity (1) through a first air inlet pipe (3), purifying through the first air purifier (102), and discharging the outdoor air into a room through a first air outlet pipe (10) and a Y-shaped coupling pipe (11) and an internal air outlet (15), in this process, step S2-step S3 are synchronously executed;
step S5, entering an outdoor fresh air purification mode, outputting a control instruction by a control system to control a first fan (101), a second fan (201) and a first air purifier (102) to work in an electrified mode, controlling a second air purifier (202) to be powered off, simultaneously opening a first electromagnetic valve (16) and a fourth electromagnetic valve (19), closing a second electromagnetic valve (17) and a third electromagnetic valve (18), sucking outdoor air from an external air inlet (5) under the action of the first fan (101), entering a first purification cavity (1) through a first air inlet pipe (3), purifying through the first air purifier (102), discharging the purified outdoor air into a room from an internal air outlet (15) through a first air outlet pipe (10) and a Y-shaped coupling pipe (11), sucking indoor air into a second purification cavity (2) through a second internal air inlet (9) under the action of the second fan (201), and discharging the purified air out of an outdoor air outlet (14) through a second air outlet pipe (12) and a third air outlet pipe (13), in this process, steps S2-S3 are performed in synchronization.
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