CN109737549B - Multi-mode total heat exchange fresh air system and control method thereof - Google Patents
Multi-mode total heat exchange fresh air system and control method thereof Download PDFInfo
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- CN109737549B CN109737549B CN201811557189.9A CN201811557189A CN109737549B CN 109737549 B CN109737549 B CN 109737549B CN 201811557189 A CN201811557189 A CN 201811557189A CN 109737549 B CN109737549 B CN 109737549B
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Abstract
The invention provides a multi-mode total heat exchange fresh air system and a control method thereof, wherein a fresh air outlet is communicated with a fresh air inlet through a fresh air channel, a return air inlet is communicated with an air outlet through an air exhaust channel, the fresh air channel and the air exhaust channel are respectively provided with a fresh air fan and an air exhaust fan, the fresh air side of a total-effect heat exchange core and the exhaust side of the total-effect heat exchange core are respectively communicated with the fresh air channel and the air exhaust channel, the fresh air channel comprises an air mixing cavity, the air mixing cavity is provided with a dehumidifying device, a fresh air valve and a return air valve, the fresh air valve is used for controlling the communication and isolation of the fresh air inlet and the air mixing cavity, the return air valve is used for controlling the communication and isolation of the return air inlet and the air mixing cavity, and the fresh air fan, the air exhaust fan, the dehumidifying device, the fresh air valve and the return air valve are all electrically connected with a control processor, switching between different air conditioning modes is achieved.
Description
Technical Field
The invention relates to an air conditioning system, in particular to a multi-mode total heat exchange fresh air system and a control method thereof.
Background
The new trend system is an effectual air purification equipment, can pass into outdoor fresh air after processes such as filtration, heating indoor, also can be outdoor with indoor dirty air discharge, along with the progress of science and technology, the new trend system that only has functions such as filtration, take a breath and heat transfer can not satisfy and consumer's demand, need to have a new trend system can adapt to overcast and rainy day, fine day, different weather such as haze is serious, also need to have a new trend system can adapt to the different demands of spring and autumn and winter season user, can provide a clean and comfortable indoor air environment for the user intelligently all the time.
Disclosure of Invention
The invention aims to provide a multi-mode total heat exchange fresh air system with multiple operation modes and a control method thereof, wherein the multi-mode total heat exchange fresh air system can adapt to weather and seasonal changes.
The invention provides a multi-mode total heat exchange fresh air system, which comprises a shell, wherein a fresh air outlet, a fresh air inlet, a return air inlet and an exhaust air outlet are arranged on the shell, the fresh air outlet is communicated with the fresh air inlet through a fresh air channel, the return air inlet is communicated with the air outlet through an air exhaust channel, the fresh air channel and the exhaust channel are respectively provided with a fresh air fan for transmitting outdoor air from the fresh air inlet to the fresh air outlet and an exhaust fan for transmitting indoor air from the return air inlet to the exhaust outlet, a full-effect heat exchange core body is arranged in the shell and comprises a fresh air side and an exhaust side, the new trend side with the side of airing exhaust respectively with the new trend passageway reaches the passageway of airing exhaust communicates with each other, the full heat exchange new trend system of multi-mode includes: the fresh air inlet is communicated with the fresh air mixing cavity, the return air valve is used for controlling the return air inlet to be communicated with the fresh air mixing cavity, and an opening communicated with the fresh air channel is arranged between the fresh air inlet and the return air valve in the fresh air mixing cavity; the heating module is arranged in the fresh air channel; the sensing module comprises a return air detection module and a fresh air detection module, the return air detection module is used for detecting the humidity, the temperature, the carbon dioxide concentration and the PM2.5 concentration of the air at the return air inlet, and the inlet air detection module is used for detecting the humidity and the PM2.5 concentration of the air at the fresh air inlet; and a control module including a control processor and an instruction receiver electrically connected with the control processor, the control processor receives the instruction of the instruction receiver to select to enable the multi-mode total heat exchange fresh air system to enter an intelligent mode, an energy-saving mode, a fresh air mode, a mixed air mode or an internal circulation mode, and controls the fresh air fan, the exhaust fan, the dehumidifier, the heating module, the fresh air valve and the return air valve which are electrically connected with the fresh air fan, the exhaust fan, the dehumidifier, the heating module, the fresh air valve and the return air valve to realize corresponding modes, and in the intelligent mode, the control processor receives the return air temperature value, the return air humidity value, the return air carbon dioxide concentration value and the return air PM2.5 concentration value transmitted by the return air detection module in the sensing module electrically connected with the control processor, and receives the fresh air humidity value and the fresh air PM2.5 concentration value transmitted by the fresh air detection module as judgment parameters. Preferably, the command receiver includes an operation panel and a wireless transceiver, and a user can view parameters of the multi-mode total heat exchange fresh air system through the operation panel or the wireless transceiver and select to enter the intelligent mode, the fresh air mode, the wind mixing mode, the inner circulation mode or the energy saving mode.
Preferably, one or a combination of a primary filter, an intermediate filter or a high-efficiency filter is arranged between the fresh air inlet and the fresh air valve, and one or a combination of a primary filter, an intermediate filter or a high-efficiency filter is arranged between the return air inlet and the return air valve.
Preferably, a negative ion generator is arranged in the fresh air channel and electrically connected with the control processor.
Preferably, it still includes a new trend filter chamber, a exhaust chamber, a heat transfer chamber, an air-out heating chamber and a return air chamber, the new trend filter chamber reaches the exhaust chamber all communicates with each other with outdoor, the air-out heating chamber reaches the return air chamber all communicates with each other with indoor, the heat transfer core sets up entirely in the heat transfer intracavity, the new trend air intake loops through the new trend filter chamber mix the wind chamber entirely imitate the new trend side of heat transfer core and reach the air-out heating chamber with the new trend air exit communicates with each other, the return air inlet loops through the return air chamber entirely imitate the exhaust side of heat transfer core and reach the exhaust chamber with the air exit communicates with each other.
Preferably, the fresh air fan is arranged in the heat exchange cavity and used for conveying air to the fresh air side of the full-effect heat exchange core body, and the exhaust fan is arranged in the exhaust cavity.
Preferably, the heating module is a PTC heating module, and the PTC heating module is disposed in the air-out heating cavity.
Preferably, a compressor, a condenser, a throttle valve and an evaporator are arranged in the air mixing cavity, the compressor, the condenser, the throttle valve and the evaporator are sequentially connected through a pipeline to form a heat exchange working medium heat exchange cycle, the dehumidifying device comprises the evaporator and the condenser, and the compressor is electrically connected with the control processor.
Preferably, one side of the evaporator, which is close to a bottom plate of the air mixing cavity, is provided with a water pan, and the water pan is connected with a drain outlet through a pipeline.
The invention also provides a control method of the multi-mode total heat exchange fresh air system, which comprises the following steps:
step 1: starting the machine, wherein the control processor receives an instruction of the instruction receiver and selects to enter an intelligent mode, an energy-saving mode, a fresh air mode, a mixed air mode or an internal circulation mode;
and step 3: after entering an energy-saving mode in an intelligent mode, acquiring a return air carbon dioxide concentration value, a return air PM2.5 concentration value and a fresh air PM2.5 concentration value transmitted by the return air detection module, comparing the return air carbon dioxide concentration value with a program set value X, and comparing the return air PM2.5 concentration value with the fresh air PM2.5 concentration value;
and 4, step 4: when the concentration value of the return air carbon dioxide is greater than or equal to the program set value X and the concentration value of the fresh air PM2.5 is less than the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters a fresh air mode, namely the fresh air fan and the exhaust fan operate at a speed higher than Vm/s, the fresh air valve is opened, and the return air valve is closed;
when the concentration value of the return air carbon dioxide is greater than or equal to the program set value X and the concentration value of the fresh air PM2.5 is greater than or equal to the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters an air mixing mode, namely the fresh air fan and the exhaust fan operate at a speed higher than Vm/s, the fresh air valve is opened, and the return air valve is partially opened;
when the concentration value of the return air carbon dioxide is less than the program set value X and the concentration value of the fresh air PM2.5 is more than or equal to the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters an internal circulation mode, namely the fresh air fan operates at a speed higher than Vm/s, the return air valve is opened, and the exhaust air fan and the fresh air valve are closed;
when the concentration value of the return air carbon dioxide is less than the program set value X and the concentration value of the fresh air PM2.5 is less than the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system continues to operate in an energy-saving mode;
and 5: acquiring the return air humidity value transmitted by the return air detection module and the fresh air humidity value transmitted by the fresh air detection module, and comparing the return air humidity value with a programmed humidity value H1 and the fresh air humidity value with a programmed humidity value H2;
step 6: when the return air humidity value is larger than or equal to the program set humidity value H1 or the fresh air humidity value is larger than or equal to the program set humidity value H2, starting the dehumidifying device in various modes corresponding to the step 4; when the return air humidity value is less than the programmed humidity value H1 and the fresh air humidity value is less than the programmed humidity value H2, continuing to operate in the various modes in the step 4;
and 7: the return air temperature value transmitted by the return air detection module is obtained, and when the return air temperature value is larger than or equal to a set temperature value T, the heating module is started; when the return air temperature value is less than the set temperature value T, continuously adopting various modes in the step 5 for operation;
and 8: returning to the step 2.
The invention provides a multi-mode total heat exchange fresh air system and a control method thereof, wherein a fresh air outlet of the multi-mode total heat exchange fresh air system is communicated with a fresh air inlet thereof through a fresh air channel, a return air inlet thereof is communicated with an air outlet thereof through an air exhaust channel, the fresh air channel comprises an air mixing cavity, the air mixing cavity is provided with a dehumidifying device, a fresh air valve and a return air valve, the fresh air valve is used for controlling the communication and the isolation of the fresh air inlet and the air mixing cavity, the communication and the isolation of the return air inlet and the air mixing cavity are controlled by the return air valve, the mixing of indoor and outdoor air can be realized, an opening communicated with the fresh air channel is arranged between the fresh air valve and the return air valve in the air mixing cavity, the multi-mode total heat exchange fresh air system further comprises a sensing module, a heating module and a control module, and the operation modes of the multi-mode total heat exchange fresh air system comprise an intelligent mode, The intelligent full heat exchange fresh air system comprises a fresh air mode, a wind mixing mode, an internal circulation mode and an energy-saving mode, wherein the fresh air mode is suitable for sunny days, the dehumidifying device is started in the fresh air mode and is suitable for rainy days, the wind mixing mode is suitable for spring and autumn, the internal circulation mode is suitable for being started when outdoor haze pollution is serious, the dehumidifying device is started in the internal circulation mode and is suitable for plum rain seasons of outdoor haze, the multi-mode full heat exchange fresh air system can automatically enter other different operation modes according to indoor and outdoor environments in the intelligent mode, the control method of the multi-mode full heat exchange fresh air system realizes that the intelligent mode operation is mainly realized by matching a multi-mode sensing module and a control module of the full heat exchange fresh air system, namely, the energy-saving mode is firstly entered, and then the multi-mode full heat exchange fresh air system enters the fresh air mode according to a return air carbon dioxide concentration value, a return air PM2.5 concentration value, The air mixing mode, the internal circulation mode or the energy-saving mode is continuously kept, whether the dehumidifying device is started or not is selected according to the detected return air humidity value and the detected fresh air humidity value, and whether the heating module is started or not is determined according to the return air temperature value, so that the intelligent mode operation is realized, comfortable experience is provided for users by switching various modes according to indoor and outdoor environments, and the energy consumption is reduced as much as possible while the user requirements are met.
Drawings
FIG. 1 is a schematic structural diagram of a multi-mode total heat exchange fresh air system according to a first embodiment of the present invention;
FIG. 2 is a top view of a multi-mode total heat exchange fresh air system according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control processor and its connection components according to a first embodiment of the present invention;
FIG. 4 is a schematic view of the air inlet and return air paths in the fresh air mode and the fresh air dehumidification mode according to the first embodiment of the present invention;
FIG. 5 is a schematic view of a circulating air path in a mixing mode according to a first embodiment of the present invention;
FIG. 6 is a schematic view of the inlet and return air paths in the first embodiment of the present invention in the inner loop and inner loop dehumidification mode;
fig. 7 is a control logic diagram of the multi-mode total heat exchange fresh air system according to the first embodiment of the present invention.
Detailed Description
The embodiments described below are only a part of the embodiments of the present invention, and not all of them. 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.
Referring to fig. 1 and fig. 2, the present embodiment provides a multi-mode total heat exchange fresh air system, which includes a casing 1, and a fresh air filtering cavity 2, an air mixing cavity 3, a heat exchanging cavity 4, an air outlet heating cavity 5, an air returning cavity 6, an air exhausting cavity 7, a sensing module 8, and a control module 9 are disposed in the casing 1.
The shell 1 is provided with a fresh air outlet 11, a fresh air inlet 12, a return air inlet 13 and an exhaust air outlet 14, the fresh air outlet 11 is communicated with the fresh air inlet 12 through a fresh air channel, and the return air inlet 13 is communicated with the exhaust air outlet 14 through an exhaust air channel.
And a high-efficiency filter 21 is arranged in the fresh air filtering cavity 2.
A compressor 31, a condenser 33, a throttle valve (not shown), an evaporator 32, a fresh air valve 34 and an air return valve 35 are arranged in the air mixing cavity 3, the compressor 31, the condenser 33, the throttle valve (not shown) and the evaporator 32 are sequentially connected through pipelines to form heat exchange working medium heat exchange circulation, the evaporator 32 and the condenser 33 form a dehumidifying device, a water receiving disc (not shown) is arranged on one side of the evaporator 32 close to a bottom plate 36 of the air mixing cavity 3, and the water receiving disc is connected with a water discharging port 37 through a pipeline and used for discharging condensed water. The fresh air inlet 11 and the air mixing chamber 3 are communicated and isolated by the fresh air valve 34, the return air valve 35 is used for controlling the return air inlet 13 and the air mixing chamber 3, an opening (not shown) is arranged between the fresh air valve 34 and the return air valve 35 for communicating the fresh air channel, and the dehumidifying device, the fresh air valve 34 and the return air valve 35 are electrically connected with a control processor 91 of the control module 9. The high efficiency filter 21 is arranged between the fresh air inlet 12 and the fresh air valve 34.
A full-effect heat exchange core body 41 and a fresh air fan 42 are arranged in the heat exchange cavity 4, the full-effect heat exchange core body 41 comprises a fresh air side 412 and an exhaust side 411, and the fresh air side 412 and the exhaust side 411 are respectively communicated with the fresh air channel and the exhaust channel. The fresh air fan 42 is located in the fresh air channel near the fresh air side 412 of the total-effect heat exchange core 41. In this embodiment, the new trend air intake 12 loops through new trend filter chamber 2 mix wind chamber 3 the new trend side 412 of total effect heat transfer core 41 reaches air-out heating chamber 5 with the new trend air exit 11 communicates with each other, return air inlet 13 loops through return air chamber 6 the side 411 of airing exhaust of total effect heat transfer core 41 reaches air exit 7 with the air exit communicates with each other 14. The fresh air filtering cavity 2 and the air exhaust cavity 7 are both communicated with the outside, and the air outlet heating cavity 5 and the air return cavity 6 are both communicated with the inside of the room.
A PTC heating module 51 is arranged in the air outlet heating cavity 5 and used for heating air entering the room.
The air return cavity 6 is provided with a high-efficiency filter 61.
An exhaust fan 71 is arranged in the exhaust cavity 7.
In this embodiment, a negative ion generator (not shown) is further disposed in the fresh air channel.
Referring to fig. 3, the sensing module 8 includes a return air detecting module 81 and a fresh air detecting module 82, the return air detecting module 81 is used for detecting the humidity, the temperature, the carbon dioxide concentration and the PM2.5 concentration of the air in the return air inlet, the inlet air detecting module 82 is used for detecting the humidity and the PM2.5 concentration of the air in the fresh air inlet, in this embodiment, the return air detecting module 81 includes a return air carbon dioxide concentration sensor 811, a return air PM2.5 concentration sensor 812, a return air humidity sensor 813 and a return air temperature sensor 814 which are disposed at the return air inlet 13. Fresh air detection module 82 is including setting up fresh air PM2.5 concentration sensor 821 and fresh air humidity transducer 822 of fresh air intake 12.
The control module 9 includes a control processor 91 and an instruction receiver electrically connected to the control processor 91, in this embodiment, the instruction receiver includes an operation panel 92 and a wireless transceiver 93, the control processor 91 receives an instruction of the instruction receiver to select to enable the multi-mode total heat exchange fresh air system to enter an intelligent mode, an energy saving mode, a fresh air mode, a mixed air mode or an internal circulation mode, and the fresh air fan 42, the exhaust fan 71, the dehumidifying device, the compressor 31, the fresh air valve 34 and the return air valve 35 electrically connected to the controller implement corresponding modes.
The control processor 91 is electrically connected to the return air carbon dioxide concentration sensor 811, the return air PM2.5 concentration sensor 812, the return air humidity sensor 813, the return air temperature sensor 814, the fresh air PM2.5 concentration sensor 821 and the fresh air humidity sensor 822, and correspondingly receives the return air carbon dioxide concentration value, the return air PM2.5 concentration value, the return air humidity value, the return air temperature value, the fresh air PM2.5 concentration value and the fresh air humidity value. In the intelligent mode, the control processor 91 receives the return air temperature value, the return air humidity value, the return air carbon dioxide concentration value and the return air PM2.5 concentration value transmitted by the return air detection module 81 in the sensing module 8 electrically connected with the control processor, and receives the fresh air humidity value and the fresh air PM2.5 concentration value transmitted by the fresh air detection module 82 as the judgment parameters.
Referring to fig. 4, wherein L1 represents an air inlet path, L2 represents an air return path, when the control processor 91 controls the fresh air valve 34 to open, the air outlet valve 35 is closed, the fresh air fan 42 and the exhaust air fan 71 are started, the dehumidifier is not started to perform ventilation, heat exchange and air supply, so as to realize a fresh air mode, and the dehumidifier is suitable for sunny days; when the control processor 91 starts the dehumidifying device in the fresh air mode, the fresh air dehumidifying mode is realized, and the device is suitable for rainy days. Referring to fig. 5, L5 represents a circulating air path, when the fresh air valve 34 is opened, the outlet air valve 35 is partially opened, the fresh air fan 42 and the exhaust air fan 71 are started, and the dehumidifier is not started, so that a mixed air mode is realized, and the air mixing device is suitable for spring and autumn. Referring to fig. 6, L3 represents an air inlet path, L4 represents an air return path, when the fresh air valve 34 is closed, the air outlet valve 35 is completely opened, the fresh air fan 42 is not opened, the air exhaust fan 71 is started, and the dehumidifier is not started, so that an internal circulation mode is realized, and the dehumidifier is suitable for being used when outdoor haze pollution is serious; the dehumidification device is started on the basis of the internal circulation, so that an internal circulation dehumidification mode is realized, the dehumidification device is suitable to be started in spring, autumn and plum rain seasons, different modes can be started by controlling the dehumidification device, the fresh air fan 42, the exhaust fan 71, the return air valve 35 and the fresh air valve 34 through the control processor 91, and the requirements of users on indoor air conditioning in different seasons and different weather are met.
Referring to fig. 7, the present embodiment provides a control method for a multi-mode total heat exchange fresh air system, which is implemented by the multi-mode total heat exchange fresh air system, and includes the following steps:
step 1: starting up, the control processor 91 receives the instruction of the instruction receiver and selects to enter an intelligent mode, an energy-saving mode, a fresh air mode, a mixed air mode or an internal circulation mode;
and step 3: after entering an energy-saving mode in an intelligent mode, acquiring the return air carbon dioxide concentration value, the return air PM2.5 concentration value and the fresh air PM2.5 concentration value transmitted by the return air detection module 81, comparing the return air carbon dioxide concentration value with a program set value X, and comparing the return air PM2.5 concentration value with the fresh air PM2.5 concentration value;
and 4, step 4: when the concentration value of the return air carbon dioxide is greater than or equal to the program set value X and the concentration value of the fresh air PM2.5 is less than the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters a fresh air mode, namely the fresh air fan 42 and the exhaust air fan 71 operate at a speed higher than Vm/s, the fresh air valve 34 is opened, and the return air valve 35 is closed; when the concentration value of the return air carbon dioxide is greater than or equal to the program set value X and the concentration value of the fresh air PM2.5 is greater than or equal to the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters an air mixing mode, namely the fresh air fan 42 and the exhaust air fan 71 operate at a speed higher than Vm/s, the fresh air valve 34 is opened, and the return air valve 35 is partially opened; when the concentration value of the return air carbon dioxide is less than the program set value X and the concentration value of the fresh air PM2.5 is more than or equal to the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters an internal circulation mode, namely the fresh air fan 42 operates at a speed higher than Vm/s, the return air valve 35 is opened, and the exhaust air fan 71 and the fresh air valve 34 are closed; when the concentration value of the return air carbon dioxide is less than the program set value X and the concentration value of the fresh air PM2.5 is less than the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system continues to operate in an energy-saving mode;
and 5: acquiring the return air humidity value transmitted by the return air detection module 81 and the fresh air humidity value transmitted by the fresh air detection module 82, and comparing the return air humidity value with a programmed humidity value H1 and the fresh air humidity value with a programmed humidity value H2;
step 6: when the return air humidity value is larger than or equal to the program set humidity value H1 or the fresh air humidity value is larger than or equal to the program set humidity value H2, starting the dehumidifying device in various modes corresponding to the step 4; when the return air humidity value is less than the programmed humidity value H1 and the fresh air humidity value is less than the programmed humidity value H2, continuing to operate in the various modes in the step 4;
and 7: acquiring the return air temperature value transmitted by the return air detection module 81, and starting the heating module 51 when the return air temperature value is not less than a set temperature value T; when the return air temperature value is less than the set temperature value T, continuously adopting various modes in the step 5 for operation;
and 8: returning to the step 2.
The embodiment provides a multi-mode total heat exchange fresh air system and a control method thereof, the fresh air outlet 11 of the multi-mode total heat exchange fresh air system is communicated with the fresh air inlet 12 thereof through a fresh air channel, the return air inlet 13 thereof is communicated with the air outlet 14 thereof through an air exhaust channel, the fresh air channel comprises an air mixing cavity 3, the air mixing cavity 3 is provided with a dehumidifying device, a fresh air valve 34 and a return air valve 35, the fresh air valve 34 is used for controlling the communication and the isolation of the fresh air inlet 12 and the air mixing cavity 3, the return air valve 35 is used for controlling the communication and the isolation of the return air inlet 13 and the air mixing cavity 3, the mixing of air inside and outside a room can be realized, the air mixing cavity 3 is provided with an opening (not shown) between the fresh air valve 34 and the return air valve 35 to communicate with the fresh air channel, and the multi-mode total heat exchange fresh air system further comprises a sensing module 8, The operation modes of the multi-mode total heat exchange fresh air system comprise an intelligent mode, a fresh air mode, a wind mixing mode, an internal circulation mode and an energy saving mode, the fresh air mode is suitable for sunny days, the dehumidifying device is started in the fresh air mode and is suitable for rainy days, the wind mixing mode is suitable for spring and autumn, the internal circulation mode is suitable for being started when outdoor haze pollution is serious, the dehumidifying device is started in the internal circulation mode and is suitable for plum rain season of outdoor haze, the multi-mode total heat exchange fresh air system can automatically select to enter other different operation modes according to indoor and outdoor environments, and the control method of the multi-mode total heat exchange fresh air system realizes that the operation in the intelligent mode is mainly realized by the cooperation of the sensing module 8 and the control processor 91 of the multi-mode total heat exchange fresh air system, the multi-mode total heat exchange fresh air system enters an energy-saving mode firstly, then enters a fresh air mode, a mixed air mode, an internal circulation mode or an energy-saving mode according to a detected value of a return air carbon dioxide concentration value, a return air PM2.5 concentration value and a fresh air PM2.5 concentration value, then selects whether to start the dehumidifying device according to the detected return air humidity value and the detected fresh air humidity value, and finally determines whether to start the heating module 51 according to the return air temperature value, so that the intelligent mode operation is realized, the switching of multiple modes can be carried out according to indoor and outdoor environments, comfortable experience is provided for users, and the energy consumption is reduced as much as possible while the user requirements are met.
The above disclosure is only one preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.
Claims (9)
1. A multi-mode total heat exchange fresh air system comprises a shell, wherein a fresh air outlet, a fresh air inlet, a return air inlet and an exhaust air outlet are arranged on the shell, the fresh air outlet is communicated with the fresh air inlet through a fresh air channel, the return air inlet is communicated with the air outlet through an air exhaust channel, the fresh air channel and the exhaust channel are respectively provided with a fresh air fan for transmitting outdoor air from the fresh air inlet to the fresh air outlet and an exhaust fan for transmitting indoor air from the return air inlet to the exhaust outlet, a full-effect heat exchange core body is arranged in the shell and comprises a fresh air side and an exhaust side, the new trend side with the side of airing exhaust respectively with the new trend passageway reaches the passageway of airing exhaust communicates with each other, its characterized in that, the full heat exchange new trend system of multi-mode includes:
the fresh air inlet and the fresh air inlet are provided with one or the combination of a primary filter, a medium filter or a high-efficiency filter, and the return air inlet and the return air valve are provided with one or the combination of a primary filter, a medium filter or a high-efficiency filter;
the heating module is arranged in the fresh air channel;
the sensing module comprises a return air detection module and a fresh air detection module, the return air detection module is used for detecting the humidity, the temperature, the carbon dioxide concentration and the PM2.5 concentration of the air at the return air inlet, and the inlet air detection module is used for detecting the humidity and the PM2.5 concentration of the air at the fresh air inlet; and
a control module which comprises a control processor and an instruction receiver electrically connected with the control processor, the control processor receives the instruction of the instruction receiver to select to enable the multi-mode total heat exchange fresh air system to enter an intelligent mode, an energy-saving mode, a fresh air mode, a mixed air mode or an internal circulation mode, and controls the fresh air fan, the exhaust fan, the dehumidifier, the heating module, the fresh air valve and the return air valve which are electrically connected with the fresh air fan, the exhaust fan, the dehumidifier, the heating module, the fresh air valve and the return air valve to realize corresponding modes, and in the intelligent mode, the control processor receives the return air temperature value, the return air humidity value, the return air carbon dioxide concentration value and the return air PM2.5 concentration value transmitted by the return air detection module in the sensing module electrically connected with the control processor, and receives the fresh air humidity value and the fresh air PM2.5 concentration value transmitted by the fresh air detection module as judgment parameters.
2. The system of claim 1, wherein the command receiver comprises an operation panel and a wireless transceiver, and a user can view the parameters of the multi-mode total heat exchange fresh air system and select the intelligent mode, the fresh air mode, the air mixing mode, the internal circulation mode or the energy saving mode through the operation panel or the wireless transceiver.
3. The multi-mode total heat exchange fresh air system according to claim 1, wherein a negative ion generator is disposed in the fresh air channel, and the negative ion generator is electrically connected to the control processor.
4. The multi-mode total heat exchange fresh air system according to claim 1, further comprising a fresh air filtering chamber, an exhaust chamber, a heat exchange chamber, an exhaust heating chamber and an air return chamber, wherein the fresh air filtering chamber and the exhaust chamber are both communicated with the outside, the exhaust heating chamber and the air return chamber are both communicated with the inside, the total-effect heat exchange core is disposed in the heat exchange chamber, the fresh air inlet sequentially passes through the fresh air filtering chamber, the air mixing chamber, the fresh air side of the total-effect heat exchange core and the exhaust heating chamber and is communicated with the fresh air exhaust outlet, and the air return outlet sequentially passes through the air return chamber, the exhaust side of the total-effect heat exchange core and the exhaust chamber and is communicated with the exhaust outlet.
5. The multi-mode total heat exchange fresh air system according to claim 4, wherein the fresh air fan is disposed in the heat exchange cavity and delivers air to the fresh air side of the total-effect heat exchange core, and the exhaust air fan is disposed in the exhaust cavity.
6. The multi-mode total heat exchange fresh air system according to claim 4, wherein the heating module is a PTC heating module, and the PTC heating module is disposed in the outlet air heating cavity.
7. The multi-mode total heat exchange fresh air system according to claim 5, wherein a compressor, a condenser, a throttle valve and an evaporator are arranged in the air mixing chamber, the compressor, the condenser, the throttle valve and the evaporator are sequentially connected through a pipeline to form a heat exchange working medium heat exchange cycle, the dehumidifying device comprises the evaporator and the condenser, and the compressor is electrically connected with the control processor.
8. The system of claim 7, wherein a water pan is disposed on a side of the evaporator near a bottom plate of the air mixing chamber, and the water pan is connected to a drain port through a pipe.
9. A control method of a multi-mode total heat exchange fresh air system, which is implemented by the multi-mode total heat exchange fresh air system of any one of claims 1 to 8, is characterized by comprising the following steps:
step 1: starting the machine, wherein the control processor receives an instruction of the instruction receiver and selects to enter an intelligent mode, an energy-saving mode, a fresh air mode, a mixed air mode or an internal circulation mode;
step 2: when the energy-saving mode is entered, the fresh air fan and the exhaust fan operate at a speed lower than Vm/s, the fresh air valve is opened, and the return air valve is closed; when entering a fresh air mode, the fresh air fan and the exhaust fan operate at a speed higher than Vm/s, the fresh air valve is opened, and the return air valve is closed; when entering a wind mixing mode, the fresh air fan and the exhaust fan operate at a speed higher than Vm/s, the fresh air valve is opened, and the return air valve is partially opened; when the air enters an internal circulation mode, the fresh air fan runs at a speed higher than Vm/s, the return air valve is opened, and the exhaust air fan and the fresh air valve are closed; when the multi-mode total heat exchange fresh air system enters an intelligent mode, firstly, the fresh air fan and the exhaust air fan operate at a speed lower than Vm/s, the fresh air valve is opened, and the return air valve is closed, namely, the multi-mode total heat exchange fresh air system enters an energy-saving mode firstly;
and step 3: after entering an energy-saving mode in an intelligent mode, acquiring a return air carbon dioxide concentration value, a return air PM2.5 concentration value and a fresh air PM2.5 concentration value transmitted by the return air detection module, comparing the return air carbon dioxide concentration value with a program set value X, and comparing the return air PM2.5 concentration value with the fresh air PM2.5 concentration value;
and 4, step 4: when the concentration value of the return air carbon dioxide is greater than or equal to the program set value X and the concentration value of the fresh air PM2.5 is less than the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters a fresh air mode, namely the fresh air fan and the exhaust fan operate at a speed higher than Vm/s, the fresh air valve is opened, and the return air valve is closed;
when the concentration value of the return air carbon dioxide is greater than or equal to the program set value X and the concentration value of the fresh air PM2.5 is greater than or equal to the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters an air mixing mode, namely the fresh air fan and the exhaust fan operate at a speed higher than Vm/s, the fresh air valve is opened, and the return air valve is partially opened;
when the concentration value of the return air carbon dioxide is less than the program set value X and the concentration value of the fresh air PM2.5 is more than or equal to the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system enters an internal circulation mode, namely the fresh air fan operates at a speed higher than Vm/s, the return air valve is opened, and the exhaust air fan and the fresh air valve are closed;
when the concentration value of the return air carbon dioxide is less than the program set value X and the concentration value of the fresh air PM2.5 is less than the concentration value of the return air PM2.5, the multi-mode total heat exchange fresh air system continues to operate in an energy-saving mode;
and 5: acquiring the return air humidity value transmitted by the return air detection module and the fresh air humidity value transmitted by the fresh air detection module, and comparing the return air humidity value with a programmed humidity value H1 and the fresh air humidity value with a programmed humidity value H2;
step 6: when the return air humidity value is larger than or equal to the program set humidity value H1 or the fresh air humidity value is larger than or equal to the program set humidity value H2, starting the dehumidifying device in various modes corresponding to the step 4; when the return air humidity value is less than the programmed humidity value H1 and the fresh air humidity value is less than the programmed humidity value H2, continuing to operate in the various modes in the step 4;
and 7: the return air temperature value transmitted by the return air detection module is obtained, and when the return air temperature value is larger than or equal to a set temperature value T, the heating module is started; when the return air temperature value is less than the set temperature value T, continuously adopting various modes in the step 5 for operation;
and 8: returning to the step 2.
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| CN110345612B (en) * | 2019-06-18 | 2020-11-13 | 兰舍通风系统有限公司 | Frost-prevention air-mixing energy-saving method for fresh air main unit |
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| CN111023533A (en) * | 2019-12-17 | 2020-04-17 | 福建瑞博恩环境科技有限公司 | Multifunctional direct-current bypass purification type total heat exchanger |
| CN111156642A (en) * | 2019-12-27 | 2020-05-15 | 北京齐家怡居科技有限责任公司 | Multifunctional fresh air fan |
| CN111237876A (en) * | 2020-01-17 | 2020-06-05 | 宁波奥克斯电气股份有限公司 | Fresh air conditioner and comfortable air supply control method thereof |
| CN111678235A (en) * | 2020-05-16 | 2020-09-18 | 浙江宝智环境设备科技有限公司 | Operation control method of total heat exchanger |
| CN111895568B (en) * | 2020-07-31 | 2021-12-17 | 中国农业银行股份有限公司浙江省分行 | Integrated new trend device in immersive finance storehouse |
| CN112393332A (en) * | 2020-11-30 | 2021-02-23 | 珠海格力电器股份有限公司 | Window type air conditioner and control method thereof |
| WO2023142512A1 (en) * | 2022-01-27 | 2023-08-03 | 青岛海信日立空调系统有限公司 | Air conditioner |
| CN115854465B (en) * | 2022-12-19 | 2023-07-04 | 西麦柯(广东)制冷科技股份有限公司 | Evaporative cooling dehumidifying air conditioning unit adjusting system |
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| CN106679002B (en) * | 2017-01-23 | 2019-08-13 | 东南大学 | A kind of dehumidification by condensation and the compound Fresh air handing device and method of solution dehumidification |
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