CN220582628U - Full-functional air treatment machine - Google Patents

Abstract

The utility model mainly relates to the technical field of air treatment machines. In order to solve the current fresh air conditioner function less, be difficult to satisfy the different demands of multiple application scene, provide a full-functional air handler, set up the through air door between fresh air passageway and return air passageway, through the switching and the switching degree of control fresh air intake, return air exit and through air door, make the air handler run with different modes, satisfy the variety demand of different users under different service conditions.

Description

Full-functional air treatment machine

Technical Field

The utility model mainly relates to the technical field of air treatment machines, in particular to a full-function air treatment machine and a control method thereof.

Background

The dehumidification principle of the fresh air conditioner is as follows: the outdoor air temperature is reduced and then subjected to dehumidification treatment, so that the dried outdoor air with low moisture content is continuously introduced into a room, and meanwhile, the indoor high-humidity air is discharged, so that the whole indoor air is replaced, namely, dehumidification is realized while fresh air is introduced. However, the existing household fresh air conditioner has fewer functions, usually has only a single function and a part of functions, has poor applicability, and is difficult to meet different requirements of various application scenes.

Disclosure of Invention

The utility model aims to solve the technical problems that:

the full-function air processor and the control method thereof solve the problems that the existing fresh air conditioner has fewer functions and is difficult to meet different requirements of various application scenes, provide different use modes for different users under different use scenes, and meet the use requirements of the various application scenes.

The utility model solves the technical problems by adopting the technical scheme that:

a full-function air processor comprises a controller, a throttling device, a rotating motor, a compressor, a four-way valve and an outer shell;

the inside of the outer shell is divided into a fresh air channel and a return air channel by a baffle piece;

a fresh air outlet is formed in one end of the fresh air channel, which is communicated with the room, a fresh air inlet is formed in the end, opposite to the fresh air outlet, of the fresh air channel, a first air door is arranged at the fresh air inlet, and a first fan, a first heat exchange component and a purification component are arranged in the fresh air channel;

one end of the return air channel, which is communicated with the room, is provided with a return air inlet, one end of the return air channel, which is opposite to the return air inlet, is provided with a return air outlet, a second air door is arranged at the return air outlet, and a second fan and a second heat exchange component are arranged in the return air channel;

the first heat exchange assembly and the second heat exchange assembly are connected with the compressor through a four-way valve;

a through air port which is communicated with the fresh air channel and the return air channel is formed in a section, close to the fresh air inlet and the return air outlet, of the baffle piece, and a third air door is arranged at the through air port.

Further, the first air door, the second air door and the third air door are electrically controlled air guiding shutters.

Further, still include dehumidification runner and first electric heating component, the operation district of dehumidification runner is half to be set up in the fresh air passageway, and half sets up in the return air passageway, and half that sets up in the fresh air passageway is located between first heat exchange assembly and the new trend air exit, and half that sets up in the return air passageway is located between return air intake and the second heat exchange assembly, and first electric heating component sets up between return air intake and the dehumidification runner.

Further, the air return channel shell is provided with an air supply port, the position of the air supply port on the shell is located between the first electric heating assembly and the air return air inlet, a rotatable fourth air door is arranged at the air supply port, and the fourth air door is used for rotationally sealing the air return channel or the air supply port.

Further, the novel air conditioner further comprises a second electric heating assembly, the first heat exchange assembly and the second heat exchange assembly are heat recovery rotating wheels, and the second electric heating assembly is arranged between the heat recovery rotating wheels and the dehumidifying rotating wheels in the fresh air channel.

Further, the purification component of the fresh air channel is a multi-stage extraction purification component.

Further, the intelligent air conditioner further comprises a temperature and humidity detection module and an air quality detection module, wherein the temperature and humidity detection module is connected with the air quality detection module and the controller.

Further, be provided with the air exit on the new trend passageway casing, the position of air exit on the casing is located between first fan and the new trend air exit, and air exit department sets up rotatable fifth air door, and the rotatory new trend passageway or the air exit of closure of fifth air door.

The utility model has the beneficial effects that:

the full-function air processor further expands the functions of single air purification, full/partial fresh air, fresh air heating, anhydrous humidification, multi-stage dehumidification and the like and the use requirements of different clients to be more mutually adapted aiming at special application scenes such as spring and autumn purification ventilation, summer dehumidification and humidification.

The mode that the second heat exchange component in the over-return air channel exchanges heat with the return air to directly conduct heat recovery can reduce partial heat loss in seasons with larger temperature difference in summer and winter.

A temperature and humidity detection module is arranged, and the indoor temperature and humidity can be controlled to reach the optimal state rapidly by matching with the opening and closing of each air door; and an air quality detection module is arranged, and the air processor operates in different modes when the carbon dioxide concentration and the PM2.5 concentration are different, so that the indoor air reaches a proper state.

Drawings

Fig. 1 is a schematic view of airflow circulation in a fresh air purification-free mode of the full-function air handler according to the embodiment.

Fig. 2 is a schematic diagram of airflow circulation in the full fresh air purifying mode of the full-function air handler according to the embodiment.

Fig. 3 is a schematic view of airflow circulation in the partial fresh air purifying mode of the full-function air handler according to the embodiment.

Fig. 4 is a schematic diagram of airflow circulation in the fresh air free dehumidification mode of the full-function air processor according to the embodiment.

Fig. 5 is a schematic diagram of airflow circulation in the fresh air dehumidification mode of the full-function air handler according to the present embodiment.

Fig. 6 is a schematic diagram of airflow circulation in a partial fresh air dehumidifying mode of the full-function air handler according to the embodiment.

Fig. 7 is a schematic view of airflow circulation in the cooling-multi-stage dehumidification mode of the full-function air handler according to the present embodiment.

Fig. 8 is a schematic diagram of airflow circulation in the full-function air treatment mechanism heating-fresh air heating-anhydrous humidifying mode according to the embodiment.

Fig. 9 is a schematic view of airflow circulation in the cooling-multi-stage dehumidification mode of the full-function air handler according to the present embodiment.

Fig. 10 is a schematic view showing the circulation of air under full-function air heating-anhydrous humidification according to the present embodiment.

Fig. 11 is a schematic diagram of a full-function air refrigerant leakage prevention mode according to the present embodiment.

Fig. 12 is a schematic diagram of refrigerant leakage prevention of a second heat exchange assembly of the full-function air handler according to the embodiment.

In the accompanying drawings: the air conditioner comprises a 1-fresh air channel, a 2-return air channel, a 3-fresh air inlet, a 4-return air outlet, a 5-first air door, a 6-second air door, a 7-first heat exchange component, an 8-second heat exchange component, a 9-first fan, a 10-second fan, an 11-purification component, a 12-compressor, a 13-four-way valve, a 14-throttling device, a 15-rotating motor, a 16-air supply port, a 17-fourth air door, a 18-air outlet, a 19-fifth air door, a 20-third air door, a 21-first electric heating component, a 22-dehumidifying rotating wheel, a 23-fresh air outlet, a 24-return air inlet, a 25-second electric heating component and a 26-heat recovery rotating wheel.

Detailed Description

The air processor comprises a controller, a throttling device 14, a rotating motor 15, a compressor 12, a four-way valve 13 and a shell;

the inside of the shell is divided into a fresh air channel 1 and a return air channel 2 by a baffle piece, one end of the fresh air channel 1, which is communicated with the room, is provided with a fresh air outlet 23, one end opposite to the fresh air outlet 23 is provided with a fresh air inlet 3, and a first fan 9, a first heat exchange component 7 and a purification component 11 are arranged in the fresh air channel 1; a return air inlet 24 is formed in one end of the return air channel 2 communicated with the room, a return air outlet 4 is formed in the end, opposite to the return air inlet 24, of the return air channel 2, a second fan 10 and a second heat exchange assembly 8 are arranged in the return air channel 2, and the first heat exchange assembly 7 and the second heat exchange assembly 8 are connected with a compressor 12 through a four-way valve 13; the fresh air inlet 3 is provided with an electric control first air door 5, the return air outlet 4 is provided with an electric control second air door 6, and a section of the baffle member, which is close to the fresh air inlet 3 and the return air outlet 4, is provided with a third air door 20. The air handler is switched in different modes by opening and closing the first damper 5, the second damper 6 and the third damper 20 and by opening and closing the heat exchange assembly.

Examples

The inside of air treatment machine is divided into fresh air channel 1 and return air channel 2 by separating the shelves piece, and fresh air intake 3 and fresh air exhaust outlet 23 are set up to fresh air channel 1's both sides, and return air channel 2's both sides set up return air intake 24 and return air exhaust outlet 4 respectively, and fresh air channel 1 is inside to be provided with first heat transfer module 7 and first fan 9, is provided with second heat transfer module 8 and second fan 10 in the return air channel 2, and the organism is inside still to include the general subassembly of fresh air dehumidification equipment and the automatically controlled subassembly. The fresh air inlet 3 and the return air outlet 4 are respectively provided with an electrically controlled first air door 5 and an electrically controlled second air door 6, and a section of the baffle member, which is close to the fresh air inlet 3 and the return air outlet 4, is provided with an electrically controlled third air door 20. The air handler is switched in different modes by opening and closing the first damper 5, the second damper 6 and the third damper 20 and by opening and closing the heat exchange assembly. The method specifically comprises the following modes:

no fresh air purification mode: as shown in fig. 1, the first air door 5 and the second air door 6 are controlled to be completely closed, the third air door 20 is opened, the first fan 9 is opened, the second fan 10 is closed, and the heat exchange assembly is not started; indoor air is purified through the purification assembly 11 after being pumped in from the return air inlet 24, the purified air enters the fresh air channel 1 from the return air channel 2 through the third air door 20, is discharged from the fresh air outlet 23, and the closed purification of the indoor air is completed through repeated circulation.

Full fresh air purification mode: as shown in fig. 2, the third air door 20 is controlled to be closed, the first air door 5 and the second air door 6 are fully opened, the heat exchange assembly is not started, the first fan 9 is started, the system is in a fresh air mode, dehumidification is not performed, ventilation is only performed, and meanwhile, a one-way fresh air or two-way fresh air mode can be adopted through the start and stop control of the second fan 10.

Partial fresh air purification mode: as shown in fig. 3, the first air door 5 and the second air door 6 are opened, the opening angle of the third air door 20 is controlled according to the air quantity to be mixed, different opening angles of the third air door 20 correspond to different air quantities passing through the third air door 20, a heat exchange assembly is not started, and the first fan 9 and the second fan 10 are started; the air discharged from the return air outlet 4 is partially mixed with the fresh air drawn in through the third air door 20 and then introduced into the room through the fresh air outlet 23.

The partial fresh air purification mode is suitable for indoor and outdoor heat exchange assemblies with a certain temperature difference, and a user hopes to recover the cold or heat to a certain extent under the condition that the heat exchange assemblies are not opened, so that the indoor cold or heat loss is small when fresh air ventilation is opened.

No fresh air dehumidification mode: as shown in fig. 4, in the case of a relatively high indoor humidity or a relatively poor outdoor air quality, the third damper 20 is fully opened, the first damper 5 and the second damper 6 are closed, the heat exchange assembly is started, and the first fan 9 is started; indoor air enters the return air channel 2 from the return air inlet 24 and then enters the fresh air channel 1 through the third air door 20, is cooled on the first heat exchange component 7 to separate out water drops and then is discharged into a room, and the indoor air can be efficiently dehumidified by repeated circulation without fresh air inner circulation, so that the indoor air can be adjusted to proper humidity as soon as possible.

Full fresh air dehumidification mode: as shown in fig. 5, the third air door 20 is controlled to be closed, the first air door 5 and the second air door 6 are fully opened, the heat exchange assembly is started, and the first fan 9 and the second fan 10 are both opened; the fresh air dehumidification mode is suitable for indoor and outdoor scenes with proper temperature and humidity and good air quality, and the indoor scenes are in intensive personnel or other scenes with certain ventilation requirements and dehumidification requirements.

Partial fresh air dehumidification mode: as shown in fig. 6, after the outdoor temperature is higher and reaches the set temperature threshold, the first air door 5 is controlled to be partially or completely closed, the third air door 20 is controlled to be opened, the heat exchange assembly is started, a part of indoor air is led in from the return air inlet 24, the temperature of the air passing through the second heat exchange assembly 8 is lower than the outdoor temperature, the air flow passing through the second heat exchange assembly 8 is led into the fresh air channel 1 through the third air door 20 and then mixed with the outdoor fresh air with higher temperature pumped in from the fresh air inlet 3, and the air flow enters the room through the fresh air outlet 23 to realize cooling. The partial fresh air dehumidification mode can reduce load and save power consumption under the same dehumidification effect.

When the full-function air processor is installed, the fresh air outlet positioned indoors is externally connected with the guide pipe, so that the extension of the fresh air outlet port is realized, and the full-function air processor is arranged at intervals from the return air inlet 24, thereby playing a role in preventing air flow short circuit.

Preferably, the first air door 5, the second air door 6 and the third air door 20 are air guiding louvers with controllable opening degrees, and under the condition that the opening degrees of the first air door 5 and the second air door 6 are fixed, the air flow of the return air channel 2 and the mixing amount of the fresh air flow can be controlled by controlling the opening degree of the third air door 20, so that the dehumidification efficiency, the indoor fresh air supply amount and the power consumption reach an equilibrium state.

As shown in fig. 7, the dehumidifying rotor 22 is disposed inside the air processor, the operation area of the dehumidifying rotor 22 is disposed in half, and half of the operation area is disposed in the return air channel 2 and between the second heat exchange assembly 8 and the return air inlet 24, and half of the operation area is disposed in the fresh air channel 1 and between the first heat exchange assembly 7 and the fresh air outlet 23. A first electric heating component 21 is arranged between the dehumidifying rotating wheel 22 and the return air inlet 24 in the return air channel 2.

The air processor with the dehumidifying rotating wheel 22 can operate in a refrigerating-multistage dehumidifying mode, when the refrigerating-multistage dehumidifying mode is started in summer, outdoor fresh air is subjected to preliminary dehumidification through the first heat exchange component 7, and when the humidity is high, the processing area of the dehumidifying rotating wheel 22 further performs moisture adsorption to play a role in auxiliary dehumidification; at this time, an electric heating component in the return air channel 2 is started to heat the sucked return air, after the moisture desorption condition of the regeneration zone of the dehumidifying rotating wheel 22 is met, the return air passes through the second heat exchange component 8 to carry moisture, and finally, the dehumidifying is carried out from the return air exhaust port 4, so that the circulation flow of the dehumidifying rotating wheel 22 for auxiliary dehumidifying is completed.

As shown in fig. 8, a supply air port 16 is arranged between the return air inlet 24 and the second heat exchange component 8, the switch of the supply air port 16 is controlled by an electrically controlled fourth air door 17, and the fourth air door 17 rotates to selectively close the air inlet or the supply air port 16 of the return air channel 2;

the system is switched into a heating mode through reversing the refrigerant by the four-way valve 13, outdoor fresh air is introduced from a fresh air inlet, and is heated by the first heat exchange component 7 and then continuously passes through the regeneration zone of the dehumidifying rotating wheel 22, so that desorption of moisture is completed, the moisture is carried into a room, and fresh air heating and anhydrous humidification are completed;

when the outdoor weather is stable and no large fluctuation occurs, the outdoor air humidity can be considered to be kept constant, and when the dry and wet bulb temperature in the environment is 6-7 ℃, the air moisture content is 5.43/kg;

when the outdoor air enters the fresh air channel 1, the second heat exchange component 8 heats the outdoor air to a certain degree, the dry bulb temperature of the outdoor air is raised to 30 ℃, and the wet bulb temperature is 16 ℃ under the standard condition under the condition of keeping the same moisture content (5.43 g/kg); under the condition that the dry/wet bulb temperatures are respectively 30 ℃/16 ℃, the relative humidity of the dry/wet bulb temperatures is reduced to 20%, the drying degree is higher, and the dry/wet bulb temperatures have stronger regeneration capacity (moisture absorption capacity), namely, after air is heated, water molecules can be fully desorbed and absorbed after passing through a desorption area of the dehumidifying rotating wheel 22, and the absorbed gas is reintroduced into a room, so that continuous anhydrous humidifying effect and fresh air heating effect can be realized.

At this time, the fourth air door 17 is rotated to close the return air inlet 24 of the return air channel 2 and open the air supply port 16; air with certain humidity outdoors is led in from the air supply port 16, the treatment area of the dehumidifying rotating wheel 22 carries out sufficient moisture adsorption, then the heat exchange is carried out through the second heat exchange component 8, and finally the air is discharged from the return air outlet 4, so that the fresh air heating and anhydrous humidifying functions in a heating mode are realized.

The key lies in that after the air guide opening is opened, outdoor low-temperature high-humidity air is continuously introduced into the air return channel 2 to be used as a wet source supplement of a treatment area of the dehumidifying rotating wheel 22, when the adsorbed air return is changed into dry air return with slightly high temperature and then passes through the second heat exchange component 8 at the rear, the relative humidity is low, the dew point is very low, the heat exchange component can operate at a lower evaporation temperature, frosting is prevented, the operation efficiency of equipment is improved, and the moisture in the outdoor air can be continuously conveyed outdoors, so that the frosting prevention and anhydrous humidifying effects are realized.

The first heat exchange assembly 7 and the second heat exchange assembly 8 of the air treatment machine can be replaced by a heat recovery runner 26, and a first electric heating assembly 25 is arranged between the dehumidifying runner 22 and the heat recovery runner 26 in the fresh air channel 1. As shown in fig. 9, when the air processor operates in a refrigeration-multistage dehumidification mode, the heat recovery runner 26 rotates to absorb heat in the fresh air channel 1, and outdoor fresh air entering the fresh air channel 1 is precooled, so that the water adsorption effect of the fresh air in the regeneration area of the dehumidification runner 22 is improved; the heat recovery runner 26 rotates to the return air channel 2 to release heat, and the heat is taken out of the room by being matched with the high-humidity return air passing through the regeneration area of the dehumidification runner 22, so that the circulating operation is continuously carried out.

As shown in fig. 10, in the heating-anhydrous humidifying process, the heat recovery runner 26 rotates to the return air channel 2 to absorb heat and further absorb heat and humidity in the air, when fresh air enters from the fresh air channel 1, the heat recovery runner 26 rotates to the lower side, the fresh air obtains the heat and humidity accumulated in the heat recovery runner 26, and then the heat recovery runner is heated by the first electric heating assembly 25 to reach a desorption condition, and the water quantity in the desorption area of the dehumidifying runner 22 is brought into the room, so that the functions of fresh air heating and anhydrous humidifying are completed. At the same time, the heat recovery runner 26 replaces the heat pump, and can also play a role in reducing noise to a certain extent.

Further, the purifying component 11 is a multi-stage extraction purifying component 11; can be freely combined and configured according to the configuration layer number and the purification level.

The air processor also comprises a temperature and humidity detection module and an air quality detection module, wherein a temperature sensor and a humidity sensor in the temperature and humidity detection module are connected with a system controller, so as to detect indoor and outdoor temperature and humidity in real time, and a plurality of groups of sensors arranged in the air quality detection module are connected with the system controller and are used for detecting gas concentrations of CO2, PM2.5, TVOC, oxygen (O2), carbon dioxide (CO 2), carbon monoxide (CO), formaldehyde (CH 2O) and the like in real time, so as to monitor the quality of air, and the indoor temperature and humidity, indoor carbon dioxide and PM2.5 concentration and refrigerant leakage control method of the air processor is as follows;

indoor temperature and humidity control:

s1: the user sets humidity phi s according to the self requirement, if the system is not set, the automatic assignment is carried out; the system has preset humidity thresholds phiA (range: 60% -65%) and phiB (range: 45% -50%), the user sets humidity phis to be met, phiA > phis > phiB, and after the user sets humidity phis, the system starts to be started; the value range system of the humidity threshold value phi A and the humidity threshold value phi B is adaptively regulated and controlled according to seasons and environmental temperatures;

step S2, when the system detects that phiir is larger than phiA, the system considers that the indoor humidity phiir is too high, and the system directly starts a fresh air-free dehumidification mode (dehumidifier) until phiir reaches a set humidity phis;

s3, when phiir reaches phis, namely the system detects that phiA is larger than phiir (phis) > phiB, the indoor humidity phiir is in a proper state and is in a stable state; after the indoor environment is in the stable state, the system can continuously start different dehumidification modes according to different temperature and humidity conditions so as to keep the set humidity phi s;

step S31, when phior is smaller than phiir, and Torr is smaller than Ta, wherein Ta is an outdoor temperature first threshold value, the outdoor air temperature and humidity are lower, the system considers that a heat exchange device is not required to be started to dehumidify fresh air, a full fresh air purification mode (a fresh air machine) is started, and the indoor air is directly dried and dehumidified by using low-temperature low-humidity outdoor air;

step S32, when phi or is larger than phi ir, the outdoor air humidity is higher, and the system considers that the heat exchange device is required to be started to dehumidify the fresh air and then the fresh air is led into the room for dehumidification operation;

step S321, when the Torr is smaller than Tb, and the Phi or is smaller than Phi c, tb is the second threshold value of the outdoor temperature, the system is regarded as suitable outdoor fresh air temperature and humidity, the load of the evaporator is smaller, the refrigerating capacity requirement in unit time is smaller, the energy consumption of the compressor 12 is reasonable, the system directly starts a full fresh air dehumidification mode (fresh air dehumidifier), and indoor dehumidification and ventilation are continuously carried out;

step S322, when Torr is greater than Tb and Φor is greater than Φc, the system is regarded as the outdoor air temperature and humidity is too high, so that the load of the evaporator is too high, at the moment, the system starts a part of fresh air dehumidification mode (part of fresh air dehumidifier), adopts a mode of mixing part of return air backflow and fresh air introduction, reduces the temperature and humidity of the fresh air introduction after mixing, reduces the required unit refrigerating capacity, reduces the power consumption of the compressor 12, and can maintain a certain fresh air quantity;

step S3221, based on the partial fresh air dehumidifying mode (partial fresh air dehumidifier) described in step S322: under the condition that the rotating speed of the first fan 9/the second fan 10 is fixed, the system dynamically controls the opening degree of the third air door 20 according to the outdoor temperature Torr, the outdoor humidity phi or and the indoor air quality parameter by a control algorithm, and intelligently controls the mixing quantity of return air and high-temperature high-humidity fresh air so as to achieve the optimal balance state of dehumidification efficiency, indoor fresh air supply quantity and power consumption.

Indoor carbon dioxide and PM2.5 concentration control:

the air processor control quality module detects concentration values of pollution sources such as indoor and outdoor CO2, PM2.5 and the like, so that indoor carbon dioxide concentration Cir-CO2, indoor PM2.5 concentration Cir-PM2.5, outdoor carbon dioxide concentration Cor-CO2 and outdoor PM2.5 concentration Cor-PM2.5 are obtained; judging the indoor air cleanliness level through the indoor carbon dioxide concentration Cir-CO2 and the indoor PM2.5 concentration Cir-PM2.5, and controlling the air treatment machine to enter different operation modes by combining the outdoor carbon dioxide concentration Cor-CO2 and the outdoor PM2.5 concentration Cor-PM2.5; the method specifically comprises the following steps:

when Cir-CO2 is less than 500PPM and Cir-PM2.5 is less than 35 mug/m < 3 >, the system considers that the indoor air is at the clean grade at present, the durability of the purification assembly 11 is preferably kept, the operation mode of the air treatment machine is regulated by taking the concentration of the outdoor carbon dioxide Cor-CO2 and the concentration of the outdoor PM2.5 Cor-PM2.5 as references, and the operation mode before the regulation is recovered until the indoor air quality index reaches the clean grade, and the operation is kept continuously.

Specifically, when the indoor air quality is Cir-CO2 < 500PPM and Cir-PM2.5 < 35 mu g/m3, the air treatment machine adjusts according to the outdoor air quality in the following specific modes:

(1) When the Cor-CO2 is more than Cir-CO2 (110%), and the Cor-PM2.5 is more than 30 mug/m < 3 >, the system is regarded as the outdoor air to be slightly bad, the system is only uncomfortable to perform indoor and outdoor large-scale ventilation, the system is stopped in a full fresh air purification mode, and the other modes are normally opened;

(2) When the Cor-CO2 is more than Cir-CO2 (120%), and the Cor-PM2.5 is more than 50 mug/m < 3 >, the system is regarded as poor outdoor air, the system shuts down two full fresh air modes, part of the fresh air modes operate in an intermittent fresh air introduction mode,

(3) When Cor-CO2 > Cir-CO2 (130%), and Cor-PM2.5 > 100 mug/m 3, the system is regarded as extremely bad outdoor air, ventilation is not allowed, the system only allows to start the following modes, no fresh air purification mode (purifier), no fresh air dehumidification mode (dehumidifier), and if the system is in other modes at this time, the system is directly set to be operated in the two modes.

And (II) when Cir-CO2 is more than 500PPM and Cir-PM2.5 is more than 60 mug/m < 3 >, the system considers that the indoor air is in a poor grade at the moment, the system takes the indoor air quality treatment as a main target, takes the durability of the purification component 11 as a secondary target for feedback control, and continuously keeps running after the indoor air quality index reaches the clean grade and then resumes the running mode before adjustment.

Specifically, when the indoor air quality is Cir-CO2 > 500PPM and Cir-PM2.5 > 60 mug/m 3, the air treatment machine adjusts according to the outdoor air quality in the following specific modes:

(1) If the operation mode of the system at this time is: the system increases the rotation speed of the first fan 9 and the second fan 10 within a certain period of time, and temporarily increases the fresh air circulation amount;

(2) If the operation mode of the system at this time is: part of fresh air purification and part of fresh air dehumidification modes are directly correspondingly adjusted into a fresh air purification mode and a fresh air dehumidification mode,

the control parameters of the heat exchange assembly are correspondingly adjusted, so that the fresh air circulation quantity is improved;

(3) If the system operation mode at this time is: the system has the advantages that no fresh air purification (purifier) and no fresh air dehumidification (dehumidifier) are adopted, and the direct correspondence is adjusted to a part of fresh air purification mode (part of fresh air purifier) and a part of fresh air dehumidification mode (part of fresh air dehumidifier), so that part of fresh air circulation quantity is increased.

(III) when Cir-CO2 is more than 800PPM and Cir-PM2.5 is more than 200 mug/m < 3 >, the system considers that the indoor air is at an extremely poor grade and the oxygen content is seriously insufficient; the system takes the indoor air quality treatment as a core target, disregards the durability of the purification component 11, and continuously keeps running after the indoor air quality index reaches the clean grade and then resumes the running mode before adjustment.

Specifically, when the indoor air quality is Cir-CO2 > 800PPM and Cir-PM2.5 > 200 mug/m 3, the air treatment machine adjusts according to the outdoor air quality in the following specific modes: the current operation mode of the system is directly adjusted to be a fresh air purification mode, the rotating speeds of the first fan 9 and the second fan 10 are increased, and fresh air circulation quantity is improved to the greatest extent.

Refrigerant leakage control:

as shown in fig. 11, an air outlet 18 is arranged between the first fan 9 and the fresh air outlet 23, a fifth air door 19 is arranged at the air outlet 18, and the fifth air door 19 can be rotated to close or open the air outlet 18 or the fresh air channel 1.

When refrigerant leakage occurs, the control system cannot determine that the refrigerant occurs in the first heat exchange assembly 7 or the second heat exchange assembly 8, and the specific operation steps of directly performing refrigerant evacuation are as follows:

in step S1, the fifth air door 19 is controlled to rotate to close the air outlet 18 of the fresh air channel 1, so as to prevent the leaked refrigerant from entering the room through the fresh air outlet 23, and at this time, the air outlet 18 is opened.

And S2, closing a return air inlet 24 of the return air channel 2 by the fourth air door 17, and opening the air supplementing port 16.

Step S3, the first air door 5 and the second air door 6 are closed, and the third air door 20 is fully opened.

Step S4, the first fan 9 is started, the rotating speed of the first fan 9 is increased, and leaked refrigerant is discharged from the air outlet 18.

And (II) if the leakage of the refrigerant occurs in the second heat exchange assembly 8, the leaked refrigerant will be wrapped with the air flow during the evacuation, and completely flow through the purification assembly 11, so as to cause serious pollution to the purification assembly 11, thereby seriously reducing the durability of the purification assembly 11, and thus providing an optimized refrigerant leakage evacuation method as shown in fig. 12. The method comprises the following specific steps:

and S1, controlling the fifth air door 19 to rotate to close the air outlet 18 of the fresh air channel 1, and preventing leaked refrigerant from entering a room through the fresh air outlet 23, wherein the air outlet 18 is opened.

And S2, closing a return air inlet 24 of the return air channel 2 by the fourth air door 17, and opening the air supplementing port 16.

Step S3, the first air door 5 and the second air door 6 are fully opened, and the third air door 20 is closed.

Step S4, the first fan 9 and the second fan 10 are started, the rotation speed of the first fan 9 and the second fan 10 is increased, and leaked refrigerant is discharged from the air outlet 18.

Claims (8)

1. The full-function air processor is characterized by comprising a controller, a throttling device, a rotating motor, a compressor, a four-way valve and an outer shell;

the inside of the outer shell is divided into a fresh air channel and a return air channel by a baffle piece;

a fresh air outlet is formed in one end of the fresh air channel, which is communicated with the room, a fresh air inlet is formed in the end, opposite to the fresh air outlet, of the fresh air channel, a first air door is arranged at the fresh air inlet, and a first fan, a first heat exchange component and a purification component are arranged in the fresh air channel;

a return air inlet is formed in one end of the return air channel, which is communicated with the room, a return air outlet is formed in the end, opposite to the return air inlet, of the return air channel, a second air door is arranged at the return air outlet, and a second fan and a second heat exchange assembly are arranged in the return air channel;

the first heat exchange assembly and the second heat exchange assembly are connected with the compressor through a four-way valve;

a through air port which is communicated with the fresh air channel and the return air channel is formed in a section, close to the fresh air inlet and the return air outlet, of the baffle piece, and a third air door is arranged at the through air port.

2. The full function air handler of claim 1, wherein the first, second and third dampers are electrically controlled air directing louvers.

3. The full-featured air handler of claim 1 further comprising a desiccant wheel and a first electrical heating assembly, wherein one half of the operating area of the desiccant wheel is disposed in the fresh air channel, the other half is disposed in the return air channel, one half of the operating area is disposed in the fresh air channel between the first heat exchange assembly and the fresh air outlet, one half of the operating area is disposed in the return air channel between the return air inlet and the second heat exchange assembly, and the first electrical heating assembly is disposed between the return air inlet and the desiccant wheel.

4. The full-function air handler of claim 1, wherein the return air duct housing is provided with a supply air duct, the supply air duct being positioned on the housing between the first electric heating assembly and the return air duct, the supply air duct being provided with a rotatable fourth air door, the fourth air door rotatably closing the return air duct or the supply air duct.

5. A full function air handler according to claim 3 further comprising a second electrical heating assembly, the first and second heat exchange assemblies being heat recovery rotors, the second electrical heating assembly being disposed between the heat recovery rotors and the desiccant rotors in the fresh air path.

6. The full-featured air handler of claim 1 wherein the fresh air channel cleaning assembly is a multi-stage extraction cleaning assembly.

7. The full-function air handler of claim 1, further comprising a temperature and humidity detection module and an air quality detection module, wherein the temperature and humidity detection module is connected with the air quality detection module and the controller.

8. The full-featured air handler of any one of claims 1 to 7, wherein the fresh air duct housing is provided with an air outlet, the air outlet is located between the first fan and the fresh air outlet on the housing, a rotatable fifth air door is provided at the air outlet, and the fifth air door is rotatably closed to the fresh air duct or the air outlet.