CN111981588A - Fresh air purification unit system and operation control method thereof - Google Patents
Fresh air purification unit system and operation control method thereof Download PDFInfo
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- CN111981588A CN111981588A CN202010885344.0A CN202010885344A CN111981588A CN 111981588 A CN111981588 A CN 111981588A CN 202010885344 A CN202010885344 A CN 202010885344A CN 111981588 A CN111981588 A CN 111981588A
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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
- F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/81—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the air supply to heat-exchangers or bypass channels
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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
- F24F3/14—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 humidification; by dehumidification
- F24F3/147—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 humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/64—Airborne particle content
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/50—Air quality properties
- F24F2110/65—Concentration of specific substances or contaminants
- F24F2110/70—Carbon dioxide
Abstract
The invention discloses a fresh air purification unit system, which comprises a main body and a total heat exchanger arranged in the main body, wherein a purification module, a heat exchange module, a second electric heating module, a humidification module, a blower and an air supply outlet are sequentially arranged along the air supply direction of an air supply channel, and a series of control actions are carried out on the unit system based on multiple parameters such as monitored air inlet temperature T3, indoor dew point temperature Tw, outdoor environment temperature T4, air supply temperature T2, indoor temperature T1, indoor humidity H1, indoor PM2.5, indoor CO2 and the like, so that the indoor environment is ensured to be in reasonable indoor temperature, humidity, cleanliness and oxygen content, a comfortable environment is created for the indoor, and meanwhile, the unit system is started and dynamically adjusted as required, and is more energy-saving and reliable.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a fresh air purification unit system and an operation control method thereof.
Background
The new fan equipment is widely applied to places such as families, hotels, office buildings, villas and the like. The fresh air machine can supply fresh air to the room to discharge dirty air in the room, solves air conditioning diseases and is widely applied to various places, but because the temperature difference between the indoor and the outdoor is large, the load of the fresh air heat exchanger wastes energy greatly, although the full heat exchanger is added, a part of cold energy can be recycled in summer, a part of energy is also wasted, especially in winter, the outdoor temperature is very low, especially in northern areas, the outdoor temperature is lower than-10 ℃, the full heat exchanger is easy to freeze, and the full heat exchanger is blocked, so that the operation of the fresh air machine set is influenced.
The purifier can treat fast PM2.5 and other environmental pollutants, and can be widely applied to families, especially in winter in the north, because the purifier can solve indoor air pollution. However, the purifier is mostly in a closed space, and if the purifier is long, symptoms such as oxygen deficiency and the like are easily caused indoors, and the experience is very poor.
The air conditioner is widely applied to various places, meets the requirement of people on temperature control, but causes air conditioning diseases such as air turbidity, oxygen deficiency and the like when being in an air conditioning room for a long time.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a fresh air purification unit system and an operation control method thereof.
In order to achieve the aim, the fresh air purification unit system provided by the invention comprises a main body and a total heat exchanger arranged in the main body, wherein an air supply channel is arranged in the main body, and an air inlet channel outlet of the total heat exchanger is communicated with the air supply channel; the air conditioner is characterized in that a purification module, a heat exchange module, a second electric heating module, a humidification module, an air feeder and an air supply outlet are sequentially arranged along the air supply direction of an air supply channel, and the main body is provided with a fresh air inlet, an indoor air outlet, a first air return inlet and a second air return inlet, wherein the fresh air inlet and the first air return inlet are communicated with an air inlet channel inlet of the total heat exchanger, the indoor air outlet is communicated with an air exhaust channel inlet of the total heat exchanger, and an air exhaust channel outlet of the total heat exchanger is communicated with the outdoor environment; the second air return inlet is communicated with an air supply channel between the purification module and the heat exchange module;
the purification module is used for filtering and purifying the air flowing through,
the fresh air inlet is provided with a first electric heating module for performing auxiliary electric heating on fresh air flowing through, wherein the on-off of the first electric heating module is correspondingly controlled based on the monitored inlet air temperature T3 of the total heat exchanger and the indoor dew point temperature Tw;
the heat exchange module is provided with a variable frequency outdoor unit and is used for exchanging heat with air flowing through, wherein the heat exchange module is correspondingly controlled to operate in a heating mode or a cooling mode or to be in standby mode based on the difference between the monitored outdoor environment temperature T4 and the set temperature Ts; correspondingly controlling the output size of the variable frequency outdoor unit based on the difference value between the monitored indoor temperature T1 and the set temperature Ts;
the second electric heating module is used for performing auxiliary electric heating on the air flowing through, wherein the on-off of the second electric heating module is correspondingly controlled based on the monitored air supply temperature T2 and the indoor dew point temperature Tw;
the humidifying module is used for humidifying air flowing through, wherein the opening and closing of the humidifying module and the opening and closing of the dehumidification mode of the heat exchange module are correspondingly controlled based on the monitored indoor humidity H1 and the set humidity Hs;
and correspondingly controlling the opening and closing of the fresh air inlet, the indoor air outlet, the first air return inlet and the second air return inlet based on the monitored indoor PM2.5, the set PM2.5 size and the indoor CO2 content.
Further, an air supply temperature sensor for monitoring and acquiring air supply temperature T2 is arranged at the air supply opening.
An operation control method of a fresh air purification unit system comprises the following steps:
A1. when the system is powered on, firstly, based on the difference between the monitored outdoor environment temperature T4 and the set temperature Ts, the heat exchange module is correspondingly controlled to operate in a heating mode or a cooling mode or to be in standby, and then the step A2 is carried out;
A2. correspondingly controlling the on-off of the humidifying module and the on-off of the dehumidification mode of the heat exchange module based on the monitored indoor humidity H1 and the set humidity Hs, and then respectively carrying out steps B1, B2, B3 and B4;
B1. on the basis of the conditions of the monitored air inlet temperature T3 and the indoor dew point temperature Tw and the condition that the heat exchange module is not in the refrigeration mode, correspondingly controlling the on-off of the first electric heating module;
B2. the opening and closing of the second electric heating module are correspondingly controlled based on the monitored air supply temperature T2 and the indoor dew point temperature Tw;
B3. correspondingly controlling the output size of the variable frequency outdoor unit based on the difference value between the monitored indoor temperature T1 and the set temperature Ts;
B4. and correspondingly controlling the opening and closing of the fresh air inlet, the indoor air outlet, the first air return inlet and the second air return inlet based on the monitored indoor PM2.5, the size condition of the set PM2.5 and the condition of indoor CO 2.
Further, in step a1, i) when the set temperature Ts — the outdoor ambient temperature T4 < -2, the heat exchange module operates in a cooling mode; II) when the temperature is more than-2 and less than the set temperature Ts and the outdoor environment temperature T4 and less than 2, the heat exchange module is in standby state; III) when the set temperature Ts-the outdoor environment temperature T4 is more than 2, the heat exchange module operates in a heating mode.
Further, in step a2, i) when the indoor humidity H1 is greater than the set humidity Hs, the heat exchange module operates the dehumidification mode and turns off the humidification module; II) when the indoor humidity H1 is less than the set humidity Hs, the heat exchange module does not operate the dehumidification mode and starts the humidification module; III) when the indoor humidity H1 is less than the set humidity Hs, the heat exchange module does not operate the dehumidification mode and the humidification module is closed.
Further, in the step B1, I) when the air inlet temperature T3-the indoor dew point temperature Tw is less than 0, the first electric heating module is started; II) when the air inlet temperature T3-the indoor dew point temperature Tw is larger than 1, the first electric heating module is closed.
Further, in step B2, I) when the air supply temperature T2-the indoor dew point temperature Tw < -2, the second electric heating module is started; II) when the air supply temperature T2-the indoor dew point temperature Tw is more than 2, the second electric heating module is closed.
Further, in the step B3 and the heat exchange module is in the cooling mode, i) when the set temperature Ts — the indoor temperature T1 > 2, the output of the variable frequency outdoor unit is reduced; II) when the temperature Ts is more than-2 and the indoor temperature T1 is less than 2, the output of the variable frequency outdoor unit is kept unchanged; III) when the set temperature Ts-the indoor temperature T1 < -2, increasing the output of the frequency conversion outdoor unit.
Further, in the step B3 and the heat exchange module is in the heating mode, i) when the set temperature Ts — the indoor temperature T1 > 2, the output of the variable frequency outdoor unit is increased; II) when the temperature Ts is more than-2 and the indoor temperature T1 is less than 2, the output of the variable frequency outdoor unit is kept unchanged; III) when the set temperature Ts-the indoor temperature T1 < -2, reducing the output of the variable frequency outdoor unit.
Further, in the step B4, I) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is smaller than 800ppm, fully opening the first air return opening, and closing the second air return opening, the fresh air opening and the indoor air outlet; II) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is more than or equal to 800ppm and less than or equal to 1000ppm, fully opening the first air return opening, closing the second air return opening, gradually opening the fresh air opening, and partially opening the indoor air outlet; III) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is larger than 1000ppm, fully opening the first air return opening, closing the second air return opening, gradually opening the fresh air opening and fully opening the indoor air outlet; IV) when the PM2.5 in the room is less than or equal to the set PM2.5 and the indoor CO2 is less than 800ppm, fully opening the first air return inlet, and closing the second air return inlet, the fresh air inlet and the indoor air outlet; v) when the PM2.5 in the room is less than or equal to the set PM2.5 and the CO2 in the room is less than or equal to 800ppm and less than or equal to 1000ppm, closing the first air return opening, gradually opening the second air return opening and the fresh air opening, and partially opening the indoor air outlet; VI) when the PM2.5 in the room is less than or equal to the set PM2.5 and the CO2 in the room is more than 1000ppm, closing the first air return opening and the second air return opening, gradually opening the fresh air opening, and partially opening the indoor air outlet.
The invention adopts the scheme, and has the beneficial effects that: based on multiple parameters such as the monitored air inlet temperature T3, the indoor dew point temperature Tw, the outdoor environment temperature T4, the air supply temperature T2, the indoor temperature T1, the indoor humidity H1, the indoor PM2.5 and the indoor CO2, a series of control actions are carried out on the unit system, the indoor environment is ensured to be at reasonable indoor temperature, humidity, cleanliness and oxygen content, a comfortable environment is created for the indoor environment, and meanwhile, the unit system is started and dynamically adjusted as required, so that the energy is saved more and more reliable.
Drawings
Fig. 1 is a schematic diagram of a fresh air purification unit system according to this embodiment.
The air conditioner comprises a main body 1, a total heat exchanger 2, an air supply channel 3, a purification module 4, a heat exchange module 5, a first electric heating module 6, a second electric heating module 7, a humidification module 8, an air supply machine 9, an air supply opening 10, a fresh air opening 11, an indoor air outlet 12, a first air return opening 13 and a second air return opening 14.
Detailed Description
To facilitate an understanding of the invention, the invention is described more fully below with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be thorough and complete.
In this embodiment, referring to fig. 1, a fresh air purification unit system includes a main body 1 and a total heat exchanger 2 disposed in the main body 1, the total heat exchanger 2 includes an air inlet channel and an air exhaust channel, wherein an air supply channel 3 is disposed in the main body 1, and an outlet of the air inlet channel of the total heat exchanger 2 is communicated with the air supply channel 3. The purification module 4, the heat exchange module 5, the second electric heating module 7, the humidification module 8, the blower 9 and the air supply outlet 10 are arranged in sequence along the air supply direction of the air supply channel 3. The main body 1 is provided with a fresh air inlet 11, an indoor air outlet 12, a first air return opening 13 and a second air return opening 14, wherein the fresh air inlet 11 and the first air return opening 13 are communicated with an air inlet channel inlet of the total heat exchanger 2, so that air entering from the first air return opening 13 and the fresh air inlet 11 sequentially passes through the total heat exchanger 2, the purification module 4 and the heat exchanger module. The indoor air outlet 12 is communicated with the inlet of the air exhaust channel of the total heat exchanger 2 and the outlet of the air exhaust channel of the total heat exchanger 2 is communicated with the outdoor environment, so that the air flowing in from the indoor air outlet 12 is exhausted out of the outdoor environment after passing through the total heat exchanger 2. The second air return opening 14 is communicated with the air supply channel 3 between the purification module 4 and the heat exchange module 5, so that the air entering from the second air return opening 14 directly flows to the heat exchange module 5.
In this embodiment, the fresh air inlet 11, the first air return opening 13, the second air return opening 14, and the indoor air outlet 12 are respectively and correspondingly provided with a fresh air valve, a first air return valve, a second air return valve, and an air outlet valve, and the opening of the valve body is controlled to control the size of each air inlet.
In this embodiment, purification module 4 is used for the air that flows through to carry out filtration purification treatment, and purification module 4 of this embodiment can choose assorted filter screen or filter media according to actual demand, does not do specifically limit here to play the effect of adsorbed particle and air-purifying.
In this embodiment, the fresh air inlet 11 is provided with a first electric heating module for performing auxiliary electric heating on fresh air flowing through, wherein the on-off of the first electric heating module 6 is correspondingly controlled based on the monitored intake air temperature T3 of the total heat exchanger 2 and the indoor dew-point temperature Tw, specifically, an intake air temperature sensor for monitoring and acquiring an intake air temperature T3 is provided at the intake air channel inlet of the total heat exchanger 2 in this embodiment.
In this embodiment, the heat exchange module 5 is configured with an inverter outdoor unit and is configured to perform heat exchange with air flowing through, wherein the heat exchange module 5 is correspondingly controlled to operate in a heating mode or a cooling mode or to be in standby mode based on a difference between the monitored outdoor environment temperature T4 and the set temperature Ts; correspondingly controlling the output size of the variable frequency outdoor unit based on the difference value between the monitored indoor temperature T1 and the set temperature Ts; specifically, the heat exchange module 5 of the present embodiment is a heat exchanger, and is provided with an outdoor temperature sensor for monitoring and acquiring an outdoor ambient temperature T4 and an indoor temperature sensor for detecting and acquiring an indoor temperature T1, so as to correspondingly realize an operation mode and an output size of the heat exchanger and the variable frequency outdoor unit.
In the present embodiment, the second electric heating module 7 is used for auxiliary electric heating of the air flowing through, wherein the second electric heating module 7 is controlled to be turned on and off according to the monitored blowing air temperature T2 and the indoor dew-point temperature Tw, specifically, a blowing air temperature sensor for monitoring and acquiring the blowing air temperature T2 is disposed at the blowing port 10, and a dew-point temperature sensor for monitoring and acquiring the indoor dew-point temperature Tw is disposed indoors.
In this embodiment, the humidification module 8 is configured to humidify the air flowing through, wherein the on-off of the humidification module 8 and the on-off of the dehumidification mode of the heat exchange module 5 are correspondingly controlled based on the monitored indoor humidity H1 and the set humidity Hs, and specifically, an indoor humidity sensor configured to monitor and obtain the indoor humidity H1 is provided indoors.
In the embodiment, an indoor PM2.5 sensor for monitoring and acquiring indoor PM2.5 and an indoor CO2 sensor for monitoring and acquiring indoor CO2 content are arranged indoors, wherein the on-off of the fresh air inlet 11, the indoor air outlet 12, the first air return opening 13 and the second air return opening 14 is controlled correspondingly based on the monitored indoor PM2.5, the size condition of the set PM2.5 and the indoor CO2 content.
To facilitate an understanding of the above described unit system, the following description is further made in conjunction with a specific operation control method.
The operation control method of the embodiment comprises the following steps:
A1. when the system is powered on, firstly, based on the difference between the monitored outdoor environment temperature T4 and the set temperature Ts, the heat exchange module 5 is correspondingly controlled to operate in a heating mode or a cooling mode or to be in standby, and then the step A2 is carried out;
A2. based on the monitored indoor humidity H1 and the set humidity Hs, the opening and closing of the humidification module 8 and the opening and closing of the dehumidification mode of the heat exchange module 5 are correspondingly controlled, and then steps B1, B2, B3 and B4 are respectively performed;
B1. on the basis of the conditions of the monitored air inlet temperature T3 and the indoor dew point temperature Tw and the heat exchange module 5 is not in the refrigeration mode, the on-off of the first electric heating module 6 is correspondingly controlled;
B2. the opening and closing of the second electric heating module 7 are correspondingly controlled based on the monitored air supply temperature T2 and the indoor dew point temperature Tw;
B3. correspondingly controlling the output size of the variable frequency outdoor unit based on the difference value between the monitored indoor temperature T1 and the set temperature Ts;
B4. and on the basis of the monitored indoor PM2.5 and the size condition of the set PM2.5 and the condition of indoor CO2, the opening and closing of the fresh air inlet 11, the indoor air outlet 12, the first air return inlet 13 and the second air return inlet 14 are correspondingly controlled.
Specifically, in step a1, i) when the set temperature Ts — the outdoor environment temperature T4 < -2, which means that the outdoor environment temperature T4 is higher than the set temperature Ts, requires cooling of the introduced air, so that the heat exchange module 5 operates in the cooling mode to facilitate the air flowing through the heat exchange module 5 to release heat and cool; II) when-2 is greater than the set temperature Ts and the outdoor environment temperature T4 is less than 2, the outdoor environment temperature T4 is close to the set temperature Ts, and the introduced air does not need to be cooled or heated, so that the heat exchange module 5 is in standby; iii) when the set temperature Ts — the outdoor ambient temperature T4 > 2 means that the outdoor ambient temperature T4 is lower than the set temperature Ts and it is necessary to heat the introduced air, the heat exchange module 5 operates the heating mode so that the air passes through the heat exchange module 5 to absorb heat and heat.
Further, in step a2, i) when the indoor humidity H1 is greater than the set humidity Hs, it means that the indoor humidity H1 is too high, and the air needs to be dehumidified, so the heat exchange module 5 operates the dehumidification mode and turns off the humidification module 8; II) when the indoor humidity H1 is smaller than the set humidity Hs, the indoor humidity H1 is in a reasonable range, so the heat exchange module 5 does not operate the dehumidification mode and the humidification module 8 is started; iii) when the indoor humidity H1 < the set humidity Hs, it means that the indoor humidity H1 is too low, so the heat exchange module 5 does not operate the dehumidification mode and turns off the humidification module 8.
Further, steps B1, B2, B3, and B4 were performed, respectively, as needed.
Specifically, in step B1, i) when the inlet air temperature T3 — the indoor dew point temperature Tw < 0, means that the introduced air is lower than the dew point temperature, the water vapor in the air is liable to form water drops to accumulate in the main body 1, so that the first electric heating module 6 is turned on to perform auxiliary heating on the air introduced from the fresh air inlet 11; II) when the air inlet temperature T3-the indoor dew point temperature Tw is more than 1, the introduced air is higher than the dew point temperature, the problem that water vapor is condensed to form water drops does not occur, and therefore the first electric heating module 6 is closed.
Specifically, in step B2, i) when the supply air temperature T2 — the room dew point temperature Tw < -2, which means that the temperature of the air supplied to the room is lower than the dew point temperature, moisture in the air is liable to form water droplets to be dispersed in the room, so that the second electric heating module 7 is turned on to lift the air; ii) when the air supply temperature T2 — the room dew point temperature Tw > 2, it means that the temperature of the air supplied into the room is higher than the dew point temperature, and the moisture does not condense into water droplets, so that the second electric heating module 7 is turned off.
Specifically, in step B3 and when the heat exchange module 5 is in the cooling mode, i) when the set temperature Ts — the indoor temperature T1 > 2, it means that the indoor temperature T1 is too low, and the output of the inverter outdoor unit is reduced; II) when the set temperature Ts is more than-2 and the indoor temperature T1 is less than 2, the indoor temperature T1 is in a reasonable range, and the output of the variable frequency outdoor unit is kept unchanged; III) when the set temperature Ts-the indoor temperature T1 < -2, the indoor temperature T1 is too high, and the output of the frequency conversion outdoor unit is increased.
Specifically, in step B3 and when the heat exchange module 5 is in the heating mode, i) when the set temperature Ts — the indoor temperature T1 > 2, it means that the indoor temperature T1 is too low, and the output of the inverter outdoor unit is increased; II) when the set temperature Ts is more than-2 and the indoor temperature T1 is less than 2, the indoor temperature T1 is in a reasonable range, and the output of the variable frequency outdoor unit is kept unchanged; III) when the set temperature Ts-indoor temperature T1 < -2, the indoor temperature T1 is too high, and the output of the frequency conversion outdoor unit is reduced.
Specifically, in step B4, i) when the indoor PM2.5 > the set PM2.5 and the indoor CO2 < 800ppm, which means that the indoor PM2.5 is too high and the indoor CO2 is low, the indoor air needs to be purified, so the first air return opening 13 is fully opened, the second air return opening 14, the fresh air opening 11 and the indoor air outlet 12 are closed, and the indoor air is introduced into the main body from the first air return opening 13, flows through the purification module 4 for purification treatment and then is sent out to the indoor; II) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is larger than or equal to 800ppm and smaller than or equal to 1000ppm, the indoor PM2.5 is too high and the indoor CO2 is higher, the indoor air needs to be purified, and simultaneously, the content of the indoor CO2 is gradually reduced, so that the first air return opening 13 is fully opened, the second air return opening 14 is closed, the fresh air opening 11 is gradually opened, the indoor exhaust outlet 12 is partially opened, the indoor air is led into the body from the first air return opening 13 and led into the outdoor air from the fresh air opening 11, flows through the purification module 4 together for purification treatment and then is sent out to the indoor, the indoor air is gradually discharged out of the indoor from the indoor exhaust outlet 12, and the indoor air is gradually replaced; III) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is larger than 1000ppm, the indoor PM2.5 is too high and the indoor CO2 is too high, so that the first air return opening 13 is fully opened, the second air return opening 14 is closed, the fresh air opening 11 is gradually opened, the indoor exhaust opening 12 is fully opened, the indoor air is led into the body from the first air return opening 13 and is led into the outdoor air from the fresh air opening 11, then flows through the purification module 4 for purification treatment and is then sent to the indoor, the indoor air is rapidly exhausted out of the indoor from the indoor exhaust opening 12, and the indoor air is rapidly replaced; IV) when the PM2.5 in the room is less than or equal to the set PM2.5 and the indoor CO2 is less than 800ppm, the PM2.5 in the room is low, the indoor CO2 in the room is low, and the indoor air quality is optimal, so that the first air return opening 13 is fully opened, the second air return opening 14, the fresh air opening 11 and the indoor air outlet 12 are closed, and the indoor air circulation is performed; v) when the indoor PM2.5 is less than or equal to the set PM2.5 and the indoor CO2 is less than or equal to 800ppm, the indoor PM2.5 is low and the indoor CO2 is higher, therefore, the first air return opening 13 is closed, the second air return opening 14 and the fresh air opening 11 are gradually opened, the indoor air outlet 12 is partially opened, the outdoor air introduced from the fresh air opening 11 is purified and then mixed with the indoor air introduced from the second air return opening 14 and sent out to the indoor, and meanwhile, the indoor air is gradually exhausted out of the indoor from the indoor air outlet 12 to gradually replace the indoor air; VI) when the indoor PM2.5 is less than or equal to the set PM2.5 and the indoor CO2 is more than 1000ppm, the indoor PM2.5 is low and the indoor CO2 is too high, so that the first air return opening 13 and the second air return opening 14 are closed, the fresh air opening 11 is gradually opened, the indoor air outlet 12 is partially opened, the outdoor air is led out from the fresh air opening 11 and is sent to the indoor after being purified, the indoor air is gradually exhausted from the indoor air outlet 12, and the indoor air is quickly replaced.
In conclusion, the modules of the unit system and the opening degree of the air port are accurately controlled by comparing and judging various parameters such as indoor temperature, humidity and air quality and various set values, so that the indoor environment is ensured to be in a reasonable environment.
The above-described embodiments are merely preferred embodiments of the present invention, which is not intended to limit the present invention in any way. Those skilled in the art can make many changes, modifications, and equivalents to the embodiments of the invention without departing from the scope of the invention as set forth in the claims below. Therefore, equivalent changes made according to the spirit of the present invention should be covered within the protection scope of the present invention without departing from the contents of the technical scheme of the present invention.
Claims (10)
1. The utility model provides a fresh air purification unit system which characterized in that: the air-conditioning system comprises a main body (1) and a total heat exchanger (2) arranged in the main body (1), wherein an air supply channel (3) is arranged in the main body (1), and an air inlet channel outlet of the total heat exchanger (2) is communicated with the air supply channel (3); the air conditioner is characterized in that a purification module (4), a heat exchange module (5), a second electric heating module (7), a humidification module (8), an air feeder (9) and an air supply outlet (10) are sequentially arranged along the air supply direction of an air supply channel (3), a fresh air inlet (11), an indoor air outlet (12), a first air return opening (13) and a second air return opening (14) are arranged on a main body (1), wherein the fresh air inlet (11) and the first air return opening (13) are communicated with an air inlet channel inlet of a total heat exchanger (2), the indoor air outlet (12) is communicated with an air outlet channel inlet of the total heat exchanger (2), and an air outlet channel outlet of the total heat exchanger (2) is communicated with the outdoor environment; the second air return opening (14) is communicated with an air supply channel (3) between the purification module (4) and the heat exchange module (5);
the purification module (4) is used for filtering and purifying the air flowing through,
a first electric heating module (6) for performing auxiliary electric heating on fresh air flowing through is arranged at the fresh air inlet (11), wherein the on-off of the first electric heating module (6) is correspondingly controlled based on the monitored inlet air temperature T3 of the total heat exchanger (2) and the indoor dew point temperature Tw;
the heat exchange module (5) is provided with a variable frequency outdoor unit and is used for exchanging heat with air flowing through, wherein the heat exchange module (5) is correspondingly controlled to operate in a heating mode or a cooling mode or to be in standby mode based on the difference value between the monitored outdoor environment temperature T4 and the set temperature Ts; correspondingly controlling the output size of the variable frequency outdoor unit based on the difference value between the monitored indoor temperature T1 and the set temperature Ts;
the second electric heating module (7) is used for performing auxiliary electric heating on the air flowing through, wherein the second electric heating module (7) is correspondingly controlled to be opened and closed based on the monitored air supply temperature T2 and the indoor dew point temperature Tw;
the humidifying module (8) is used for humidifying air flowing through, wherein the opening and closing of the humidifying module (8) and the opening and closing of a dehumidification mode of the heat exchange module (5) are correspondingly controlled based on the monitored indoor humidity H1 and the set humidity Hs;
and correspondingly controlling the opening and closing of the fresh air inlet (11), the indoor air outlet (12), the first air return inlet (13) and the second air return inlet (14) based on the monitored indoor PM2.5, the set PM2.5 and the indoor CO2 content.
2. The fresh air purification unit system according to claim 1, wherein: and an air supply temperature sensor for monitoring and acquiring air supply temperature T2 is arranged at the air supply outlet (10).
3. An operation control method of a fresh air purification unit system as claimed in any one of claims 1 to 2, characterized in that: the operation control method comprises the following steps:
A1. when the system is powered on, firstly, the heat exchange module (5) is correspondingly controlled to operate in a heating mode or a cooling mode or to be in standby mode based on the difference value between the monitored outdoor environment temperature T4 and the set temperature Ts, and then the step A2 is carried out;
A2. correspondingly controlling the on-off of the humidifying module (8) and the on-off of the dehumidification mode of the heat exchange module (5) based on the monitored indoor humidity H1 and the set humidity Hs, and then respectively carrying out steps B1, B2, B3 and B4;
B1. on the basis of the conditions of the monitored air inlet temperature T3 and the indoor dew point temperature Tw and the heat exchange module (5) is not in a refrigeration mode, the opening and closing of the first electric heating module (6) are correspondingly controlled;
B2. the opening and closing of the second electric heating module (7) are correspondingly controlled based on the monitored air supply temperature T2 and the indoor dew point temperature Tw;
B3. correspondingly controlling the output size of the variable frequency outdoor unit based on the difference value between the monitored indoor temperature T1 and the set temperature Ts;
B4. and correspondingly controlling the opening and closing of the fresh air inlet (11), the indoor air outlet (12), the first air return inlet (13) and the second air return inlet (14) based on the monitored indoor PM2.5, the size condition of the set PM2.5 and the condition of indoor CO 2.
4. The operation control method of the fresh air purification unit system according to claim 3, wherein: in step A1, I) when the set temperature Ts-the outdoor environment temperature T4 < -2, the heat exchange module (5) operates in a cooling mode; II) when the temperature is more than-2 and less than the set temperature Ts and the outdoor environment temperature T4 and less than 2, the heat exchange module (5) is in standby state; III) when the set temperature Ts-the outdoor environment temperature T4 is more than 2, the heat exchange module (5) operates in a heating mode.
5. The operation control method of the fresh air purification unit system according to claim 3, wherein: in step A2, I) when the indoor humidity H1 is larger than the set humidity Hs, the heat exchange module (5) operates the dehumidification mode and closes the humidification module (8); II) when the indoor humidity H1 is smaller than the set humidity Hs, the heat exchange module (5) does not operate the dehumidification mode and starts the humidification module (8); III) when the indoor humidity H1 is less than the set humidity Hs, the heat exchange module (5) does not operate the dehumidification mode and the humidification module (8) is closed.
6. The operation control method of the fresh air purification unit system according to claim 3, wherein: in the step B1, I) when the air inlet temperature T3-the indoor dew point temperature Tw is less than 0, the first electric heating module (6) is started; II) when the air inlet temperature T3-the indoor dew point temperature Tw is larger than 1, the first electric heating module (6) is closed.
7. The operation control method of the fresh air purification unit system according to claim 3, wherein: in step B2, I) when the air supply temperature T2-the indoor dew point temperature Tw < -2, the second electric heating module (7) is started; II) when the air supply temperature T2-the indoor dew point temperature Tw is more than 2, the second electric heating module (7) is closed.
8. The operation control method of the fresh air purification unit system according to claim 3, wherein: in the step B3 and the heat exchange module (5) is in the refrigeration mode, I) when the set temperature Ts-the indoor temperature T1 is more than 2, the output of the frequency conversion outdoor unit is reduced; II) when the temperature Ts is more than-2 and the indoor temperature T1 is less than 2, the output of the variable frequency outdoor unit is kept unchanged; III) when the set temperature Ts-the indoor temperature T1 < -2, increasing the output of the frequency conversion outdoor unit.
9. The operation control method of the fresh air purification unit system according to claim 3, wherein: in the step B3 and the heat exchange module (5) is in the heating mode, I) when the set temperature Ts-the indoor temperature T1 is more than 2, the output of the frequency conversion outdoor unit is increased; II) when the temperature Ts is more than-2 and the indoor temperature T1 is less than 2, the output of the variable frequency outdoor unit is kept unchanged; III) when the set temperature Ts-the indoor temperature T1 < -2, reducing the output of the variable frequency outdoor unit.
10. The operation control method of the fresh air purification unit system according to claim 1, wherein: in the step B4, I) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is smaller than 800ppm, fully opening the first air return opening (13), and closing the second air return opening (14), the fresh air opening (11) and the indoor air outlet (12); II) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is more than or equal to 800ppm and less than or equal to 1000ppm, fully opening the first air return opening (13), closing the second air return opening (14), gradually opening the fresh air opening (11) and partially opening the indoor air outlet (12); III) when the indoor PM2.5 is larger than the set PM2.5 and the indoor CO2 is larger than 1000ppm, fully opening the first air return opening (13), closing the second air return opening (14), gradually opening the fresh air opening (11) and fully opening the indoor exhaust opening (12); IV) when the PM2.5 in the room is less than or equal to the set PM2.5 and the indoor CO2 is less than 800ppm, fully opening the first air return opening (13), and closing the second air return opening (14), the fresh air opening (11) and the indoor air outlet (12); v) when the PM2.5 in the room is less than or equal to the set PM2.5 and the CO2 in the room is less than or equal to 800ppm and less than or equal to 1000ppm, closing the first air return opening (13), gradually opening the second air return opening (14) and the fresh air opening (11), and partially opening the indoor air outlet (12); VI) when the indoor PM2.5 is less than or equal to the set PM2.5 and the indoor CO2 is more than 1000ppm, closing the first air return opening (13) and the second air return opening (14), gradually opening the fresh air opening (11), and partially opening the indoor air outlet (12).
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| CN202010885344.0A CN111981588A (en) | 2020-08-28 | 2020-08-28 | Fresh air purification unit system and operation control method thereof |
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