CN110715364B - Air treatment equipment and control method and device thereof - Google Patents

Air treatment equipment and control method and device thereof Download PDF

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Publication number
CN110715364B
CN110715364B CN201910973631.4A CN201910973631A CN110715364B CN 110715364 B CN110715364 B CN 110715364B CN 201910973631 A CN201910973631 A CN 201910973631A CN 110715364 B CN110715364 B CN 110715364B
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China
Prior art keywords
heat exchanger
fresh air
heat
air
valve
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CN201910973631.4A
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Chinese (zh)
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CN110715364A (en
Inventor
张玉峰
黎磊
毛建平
杨力
古展彰
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Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Priority to CN201910973631.4A priority Critical patent/CN110715364B/en
Publication of CN110715364A publication Critical patent/CN110715364A/en
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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/41—Defrosting; Preventing freezing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/65—Electronic processing for selecting an operating mode
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/81—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
    • F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
    • F24F12/006—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an air-to-air heat exchanger
    • 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
    • F24F13/28—Arrangement or mounting of filters
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/56—Heat recovery units

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

The application discloses air treatment equipment and a control method and device thereof. The air treatment device comprises an air duct system and a refrigerant circulating system, wherein the air duct system comprises: the full heat exchange core body, and the fresh air duct and the exhaust air duct which cross through the full heat exchange core body; the fresh air duct exchanges heat with the exhaust air duct through the total heat exchange core body; the fresh air channel is provided with a fresh air inlet and a fresh air outlet, and the exhaust air channel is provided with an exhaust air inlet and an exhaust air outlet; the refrigerant circulation system comprises a first heat exchanger arranged between the fresh air outlet and the total heat exchange core, a second heat exchanger arranged between the fresh air inlet and the total heat exchange core, a third heat exchanger arranged between the exhaust air inlet and the total heat exchange core, and a fourth heat exchanger arranged between the exhaust air outlet and the total heat exchange core; the first heat exchanger and the second heat exchanger can exchange heat with the fresh air duct, and the third heat exchanger and the fourth heat exchanger can exchange heat with the exhaust duct so as to perform heat recovery.

Description

Air treatment equipment and control method and device thereof
Technical Field
The application relates to the technical field of air treatment, in particular to air treatment equipment and a control method and device thereof.
Background
At present, various air treatment devices such as air conditioners, humidifiers, dehumidifiers, purifiers, fresh air fans and the like are appeared along with the improvement of the quality requirements of people on indoor environments.
The fresh air blower is a few indoor and outdoor heat exchange type air treatment equipment, and indoor heat dissipation is necessarily caused by exchanging indoor air outdoors, in the related art, when the fresh air blower is provided with a total heat exchange core, exhaust air and fresh air flow through the total heat exchange core in a cross mode, heat exchange is performed, and heat recovery is realized, however, the heat recovery rate of the total heat exchange chip is generally about 60%, the heat recovery rate is lower, and how to further improve the heat recovery efficiency is a problem to be solved urgently at present.
Disclosure of Invention
The application aims to provide air treatment equipment, a control method and a control device thereof, so as to solve the problem of low heat recovery efficiency in the related technology.
The application aims at realizing the following technical scheme:
an air treatment device comprising: an air duct system and a refrigerant circulation system;
wherein, the wind channel system includes: the full heat exchange core body, and a fresh air duct and an exhaust air duct which cross through the full heat exchange core body; the fresh air duct exchanges heat with the exhaust air duct through the total heat exchange core body so as to recover heat; the fresh air channel is provided with a fresh air inlet and a fresh air outlet, and the exhaust air channel is provided with an exhaust air inlet and an exhaust air outlet;
The refrigerant circulation system comprises a first heat exchanger arranged between the fresh air outlet and the total heat exchange core, a second heat exchanger arranged between the fresh air inlet and the total heat exchange core, a third heat exchanger arranged between the exhaust air inlet and the total heat exchange core, and a fourth heat exchanger arranged between the exhaust air outlet and the total heat exchange core; the first heat exchanger and the second heat exchanger can exchange heat with the fresh air duct, and the third heat exchanger and the fourth heat exchanger can exchange heat with the exhaust duct so as to perform heat recovery.
Optionally, a bypass air duct corresponding to the total heat exchange core body is arranged on the exhaust air duct;
a first side ventilation valve is arranged on the bypass air duct corresponding to the total heat exchange core body;
when the first side ventilation valve is opened, the air of the exhaust air inlet is discharged out of the room through the bypass air channel corresponding to the total heat exchange core body, and the air passing through the bypass air channel does not exchange heat with the air of the fresh air channel.
Optionally, a bypass air duct is respectively arranged at a position corresponding to the second heat exchanger on the fresh air duct and a position corresponding to the third heat exchanger and the fourth heat exchanger on the exhaust air duct;
A second side ventilation valve is arranged on the bypass air duct corresponding to the second heat exchanger;
a third side ventilation valve is arranged on the bypass air duct corresponding to the third heat exchanger;
a fourth side ventilation valve is arranged on the bypass air duct corresponding to the fourth heat exchanger;
when the bypass damper is opened, air passes through the bypass duct.
Optionally, the air duct system further includes:
one end of the circulating air channel is communicated with the fresh air channel, the total heat exchange core body and the fresh air outlet, and the other end of the circulating air channel is communicated with the exhaust air channel, the total heat exchange core body and the exhaust air inlet;
a circulating air valve arranged on the circulating air duct;
a fresh air inlet valve arranged on the fresh air inlet;
an exhaust air outlet valve arranged on the exhaust air outlet;
the fresh air inlet air valve is closed, the air exhaust air outlet air valve is closed, the circulating air valve is opened, and indoor air entering from the air exhaust air inlet is returned to the indoor through the circulating air duct and the fresh air outlet, so that internal circulation is realized.
Optionally, the air duct system further includes:
the functional module is arranged at the fresh air outlet; the functional module includes at least one of: the device comprises an air purification module, a humidification module and an odor removal module.
Optionally, a first fan is arranged on the fresh air duct.
Optionally, a second fan is arranged on the exhaust air duct.
A control method of an air treatment apparatus, applied to an air treatment apparatus as claimed in any one of the preceding claims, the control method comprising:
determining a current operation mode;
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode.
Optionally, if it is determined that the current operation mode is a refrigeration mode, the refrigeration mode includes a free refrigeration mode and an auxiliary refrigeration mode, and the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode includes:
acquiring the temperature of a fresh air inlet and the temperature of an exhaust air inlet in real time;
calculating the difference between the temperature of the fresh air inlet and the temperature of the exhaust air inlet to obtain a first difference;
comparing the first difference value with a first preset value;
if the first difference value is smaller than the first preset value, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, so that the fresh air duct and the exhaust air duct exchange heat, and a free refrigeration mode is realized;
If the first difference value is greater than or equal to the first preset value, the second heat exchanger and the third heat exchanger are controlled to stop running, and the first heat exchanger and the fourth heat exchanger run, so that the first heat exchanger serves as an evaporator to exchange heat with the fresh air duct, and the fourth heat exchanger serves as a condenser to exchange heat with the exhaust air duct, and an auxiliary refrigeration mode is realized.
Optionally, the control method further includes:
if the first difference value is smaller than the first preset value, controlling the second side vent valve, the third side vent valve and the fourth side vent valve to be opened;
and if the first difference value is larger than or equal to the first preset value, controlling the second side vent valve and the third side vent valve to be opened.
Optionally, the controlling the second heat exchanger and the fourth heat exchanger to stop operating, and the operating of the first heat exchanger and the fourth heat exchanger includes:
controlling the second heat exchanger and the third heat exchanger to stop running, and controlling the first heat exchanger and the fourth heat exchanger to run;
calculating the difference between the temperature of the exhaust air inlet and the set temperature of the user, which is obtained in real time, to obtain a second difference;
Comparing the second difference value with a second preset value;
if the second difference value is greater than or equal to the second preset value, comparing the second difference value with a third preset value;
if the second difference value is larger than or equal to the third preset value, judging whether the opening degrees of the electronic expansion valves of the first heat exchanger and the fourth heat exchanger reach the maximum;
if the opening degree of the electronic expansion valve of the first heat exchanger and the opening degree of the electronic expansion valve of the fourth heat exchanger are not the maximum;
if the second difference value reaches the maximum value, comparing the second difference value with a fourth preset value;
and if the second difference value is smaller than the fourth preset value, controlling the first heat exchanger and the fourth heat exchanger to stop running for preset time.
Optionally, if it is determined that the current operation mode is a heating mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to a control policy corresponding to the current operation mode includes:
acquiring the temperature of the fresh air inlet;
comparing the temperature of the fresh air inlet with a fifth preset value;
if the temperature of the fresh air inlet is greater than the fifth preset value, controlling the first heat exchanger and the third heat exchanger to operate, and stopping the second heat exchanger and the fourth heat exchanger to operate, so that the first heat exchanger is used as a condenser to perform heat exchange with the fresh air duct, and the third heat exchanger is used as an evaporator to perform heat exchange with the exhaust duct to realize a heating mode;
If the temperature of the fresh air inlet is smaller than or equal to the fifth preset value, the first heat exchanger, the second heat exchanger and the third heat exchanger are controlled to operate, and the fourth heat exchanger stops operating, so that the first heat exchanger serves as a condenser to exchange heat with the fresh air duct, the third heat exchanger serves as an evaporator to exchange heat with the exhaust duct, a heating mode is realized, and the second heat exchanger preheats air in the fresh air duct.
Optionally, the control method further includes:
if the temperature of the fresh air inlet is greater than the fifth preset value, controlling the second side ventilation valve and the fourth side ventilation valve to be opened;
and if the temperature of the fresh air inlet is smaller than or equal to the fifth preset value, controlling the fourth side ventilation valve to be opened.
Optionally, if it is determined that the current operation mode is the fresh air mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to the control policy corresponding to the current operation mode includes:
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger to stop running.
Optionally, it is determined that the current operation mode is a fresh air mode, and the control method further includes:
and controlling the second side vent valve, the third side vent valve and the fourth side vent valve to be opened.
Optionally, if it is determined that the current operation mode is the bypass mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to the control policy corresponding to the current operation mode includes:
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger to stop running, and opening a first side ventilation valve to enable air at an exhaust air inlet to be discharged outdoors through a bypass air channel corresponding to the total heat exchange core, wherein the air passing through the bypass air channel is not subjected to heat exchange with the air of the fresh air channel, so that the bypass mode is realized.
Optionally, if it is determined that the current operation mode is an internal circulation mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to a control policy corresponding to the current operation mode includes:
the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, the fresh air inlet valve is closed, the air outlet valve is closed, and the circulating air valve is opened, so that indoor air entering from the air outlet is returned to the indoor through the circulating air duct and the fresh air outlet, and the internal circulation mode is realized.
Optionally, if it is determined that the current operation mode is the dehumidification mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to the control strategy corresponding to the current operation mode includes:
the second heat exchanger is controlled to stop running, the first heat exchanger achieves the condenser function, the third heat exchanger achieves the evaporator function, the fresh air inlet valve is closed, the air outlet valve is closed, the circulating air valve is opened, indoor air entering from the air outlet is dehumidified through the third heat exchanger and enters the circulating air channel, and then the indoor air is heated through the first heat exchanger and returns to the indoor through the fresh air outlet, so that the dehumidification mode is achieved.
A control device for an air treatment apparatus for use in an air treatment apparatus as claimed in any preceding claim, the control apparatus comprising:
the determining module is used for determining the current operation mode;
the control module is used for controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode.
A control device of an air treatment apparatus, comprising:
A processor, and a memory coupled to the processor;
the memory is used for storing a computer program;
the processor is configured to invoke and execute the computer program in the memory to perform the method as set forth in any of the preceding claims.
The application adopts the technical scheme and has the following beneficial effects:
in the scheme of the application, on one hand, the total heat exchange core is arranged in the air treatment equipment, the fresh air channel exchanges heat with the exhaust air channel through the total heat exchange core so as to perform heat recovery, and on the other hand, the heat exchangers in the refrigerant circulation system are arranged on the fresh air channel and the exhaust air channel and can exchange heat with the fresh air channel and the exhaust air channel so as to perform heat recovery again, and compared with the structure of performing heat recovery only through the total heat exchange core in the related art, the heat recovery device can perform more heat recovery and improves the heat recovery rate.
Drawings
In order to more clearly illustrate the embodiments of the application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic view of an air treatment device according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a functional module according to another embodiment of the present application.
Fig. 3 is a flowchart of a control method of an air treatment apparatus according to another embodiment of the present application.
Fig. 4 is a flowchart of a control method of a cooling mode according to another embodiment of the present application.
Fig. 5 is a schematic structural view of a control device of an air treatment apparatus according to another embodiment of the present application.
Fig. 6 is a schematic structural view of a control device of an air treatment apparatus according to another embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail below. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, based on the examples herein, which are within the scope of the application as defined by the claims, will be within the scope of the application as defined by the claims.
Examples
Referring to fig. 1, fig. 1 is a schematic view of an air treatment apparatus according to an embodiment of the present application.
As shown in fig. 1, an air treatment apparatus provided in this embodiment includes: an air duct system and a refrigerant circulation system;
wherein, the wind channel system includes: the full heat exchange core 101, a fresh air duct 102 and an exhaust air duct 103 which cross through the full heat exchange core 101; the fresh air duct 102 exchanges heat with the exhaust air duct 103 through the total heat exchange core 101 so as to perform heat recovery; the fresh air duct 102 has a fresh air inlet 1021 and a fresh air outlet 1022, and the exhaust duct 103 has an exhaust air inlet 1031 and an exhaust air outlet 1032;
the refrigerant circulation system comprises a first heat exchanger 104 arranged between the fresh air outlet 1022 and the total heat exchange core 101, a second heat exchanger 105 arranged between the fresh air inlet 1021 and the total heat exchange core 101, a third heat exchanger 106 arranged between the exhaust air inlet 1031 and the total heat exchange core 101, and a fourth heat exchanger 107 arranged between the exhaust air outlet 1032 and the total heat exchange core 101; the first heat exchanger 104 and the second heat exchanger 105 can exchange heat with the fresh air duct 102, and the third heat exchanger 106 and the fourth heat exchanger 107 can exchange heat with the exhaust air duct 103 so as to perform heat recovery.
In the scheme of the application, in the air treatment equipment, on one hand, the total heat exchange core body 101 is arranged, the fresh air channel 102 exchanges heat with the exhaust air channel 103 through the total heat exchange core body 101 so as to perform heat recovery, and on the other hand, the heat exchangers in the refrigerant circulation system are arranged on the fresh air channel 102 and the exhaust air channel 103, so that the heat exchange can be performed with the fresh air channel 102 and the exhaust air channel 103 so as to perform heat recovery again, and compared with the structure of performing heat recovery only through the total heat exchange core body 101 in the related art, more heat recovery can be performed, and the heat recovery rate is improved.
It will be appreciated that, as shown in fig. 1, the fresh air duct 102 is provided with a first fan 108, and the first fan 108 is a fresh air fan, and can extract outdoor fresh air to enter the room through the fresh air duct 102, and the first fan 108 is disposed between the total heat exchange core 101 and the first heat exchanger 104. It will be further appreciated that the exhaust air duct 103 is provided with a second fan 109, which is an exhaust fan, and the second fan is disposed between the fourth heat exchanger 107 and the exhaust air outlet 1032, so that indoor air can be exhausted to the outside through the exhaust air duct 103.
The air treatment device in this embodiment may be a fresh air conditioner integrated machine, and it may be understood that the above refrigerant circulation system may further include a compressor, a four-way valve, and the like. Generally, the refrigerant circulation system comprises a compressor, a four-way valve, a condenser and an evaporator, the first heat exchanger 104 and the second heat exchanger 105 may be arranged in parallel at the position of the condenser of the conventional refrigerant circulation system, the third heat exchanger 106 and the fourth heat exchanger 107 may be arranged in parallel at the position of the evaporator, the reversing may be realized through the four-way valve, and the reversing scheme through the four-way valve is an existing mature technology, which is not described in detail herein. Based on the above structure, different operation modes can be realized, which are described in detail below, respectively.
Cooling mode:
when the outdoor temperature is lower than the indoor temperature, for example, in a room with a heat source and a room with a high temperature, the outdoor fresh air can be directly used for cooling the room, and at this time, the first fan 108 and the second fan 109 operate according to a preset windshield, and the compressor stops operating, so that the natural refrigeration is relied on, and the refrigeration mode is called as a free refrigeration mode.
If the free cooling mode cannot meet the user requirement, the compressor is required to cool, and the cooling mode is called an auxiliary cooling mode, at this time, the first fan 108 and the second fan 109 operate according to a preset windshield, the second heat exchanger 105 and the third heat exchanger 106 stop operating, and the first heat exchanger 104 and the fourth heat exchanger 107 operate, so that the first heat exchanger 104 serves as an evaporator to exchange heat with the fresh air duct 102, and the fourth heat exchanger 107 serves as a condenser to exchange heat with the exhaust air duct 103, thereby realizing the auxiliary cooling mode. In this embodiment, through the auxiliary refrigeration mode, the first heat exchanger 104 is utilized to exchange heat with the fresh air duct 102, and the fourth heat exchanger 107 is utilized to exchange heat with the exhaust air duct 103, so that the air with a certain cooling capacity passing through the total heat exchange core 101 is also used for cooling the fourth heat exchanger 107 due to the double heat exchange of the air passing through the total heat exchange core 101, and the heat exchange effect is improved by utilizing the cooling capacity of the part, and the refrigeration energy consumption is reduced.
Heating mode:
in the heating mode, the first heat exchanger 104 and the third heat exchanger 106 operate, the second heat exchanger 105 and the fourth heat exchanger 107 stop operating, so that the first heat exchanger 104 serves as a condenser to exchange heat with the fresh air duct 102, and the third heat exchanger 106 serves as an evaporator to exchange heat with the exhaust air duct 103, thereby realizing the heating mode. In this embodiment, the serious frosting problem caused by heat exchange between the indoor hot air and the fourth heat exchanger 107 after heat exchange of the total heat exchange core 101 is avoided, defrosting is not needed in continuous heating in winter, and the heat exchange effect with the third heat exchanger 106 is good due to higher indoor air temperature, so that the heating energy consumption is reduced.
Because the total heat exchange core 101 is made of paper film, if the outdoor temperature is lower, the temperature difference between the total heat exchange core 101 and the indoor temperature is larger, the humidity of the paper film can be increased when the total heat exchange core 101 is passed, so that the total heat exchange core 101 is damaged, the lower air entering from the fresh air inlet is prevented from directly passing through the total heat exchange core 101, the total heat exchange core 101 is damaged, the second heat exchanger 105 can be operated in a heating mode, the air in the fresh air duct 102 is preheated, and then the air enters the total heat exchange core 101. The application of the second heat exchanger can be used as auxiliary heat to preheat the inlet air, the inlet temperature of the general exchange core body is not lower than-10 ℃, and the fresh air exchange function can be ensured in winter only by paying out a certain amount of heating.
Bypass mode:
in some embodiments, the exhaust air duct 103 is provided with a bypass air duct 110 corresponding to the total heat exchange core 101; a first side ventilation valve 111 is arranged on the bypass air duct 110 corresponding to the total heat exchange core 101; if the outdoor temperature and the indoor temperature are different, refrigeration and heating are not needed, a bypass mode can be realized based on the structure of the embodiment, specifically, when the first bypass ventilation valve 111 is opened, air at the air exhaust inlet is discharged out of the room through the bypass air channel corresponding to the total heat exchange core 101, and the air passing through the bypass air channel does not exchange heat with air in the fresh air channel 102.
Internal circulation mode:
in some embodiments, as shown in fig. 1, the air duct system may further include: the circulating air duct 112, one end of the circulating air duct 112 is communicated with the fresh air duct 102, between the total heat exchange core body 101 and the fresh air outlet 1021, and the other end is communicated with the exhaust air duct 103, between the total heat exchange core body 101 and the exhaust air inlet 1031; a circulation air valve 113 provided on the circulation air duct 112; a fresh air intake valve 122 provided on the fresh air intake 1021; an exhaust outlet damper 121 is provided in the exhaust outlet 1032. Based on the structure of this embodiment, when the outdoor environment is severe, such as windy and sandy weather, and gas exchange with the outdoor is not needed, the internal circulation mode may be turned on to keep the flow of indoor air, at this time, the first fan 108 operates according to the preset windshield, the second fan 109 stops operating, the compressor stops operating, the fresh air intake valve 122 is closed, the exhaust air outlet valve 121 is closed, the circulation air valve 113 is opened, and the indoor air entering from the exhaust air inlet 1031 returns to the indoor through the circulation air duct 112 and the fresh air outlet 1021 to realize internal circulation.
In order to ensure the outdoor air quality in the internal circulation mode, the air duct system further comprises: the functional module 114 is arranged at the fresh air outlet; the functional module 114 includes at least one of the following: the device comprises an air purification module, a humidification module and an odor removal module. Specifically, as shown in fig. 2, the functional module 114 may be provided with a slot 1141, and the air purifying module, the humidifying module, the deodorizing module, and the like may be freely added.
The humidification module is preferably a wet film, but may also be an ultrasonic humidification module, a vibration humidification module, or the like.
The purification module can be an IFD module and a high-efficiency filter screen, but is not limited to the IFD module and the high-efficiency filter screen.
Among them, the deodorizing module is preferably activated carbon, but is not limited thereto.
Optionally, the functional module 114 is located between the first heat exchanger 104 and the fresh air outlet 1022, so as to prevent the influence of the condensed water of the exchanger on the fan caused by corrosion and the like.
Dehumidification mode:
when the indoor space is damp, the dehumidification mode can be realized based on the above internal circulation mode, at this time, the first fan 108 operates according to a preset windshield, the second fan 109 stops operating, the compressor stops operating, the second heat exchanger 105 and the fourth heat exchanger 107 stop operating, the compressor operates, the first heat exchanger 104 realizes the condenser function, the third heat exchanger 106 realizes the evaporator function, the fresh air inlet air valve 122 is closed, the air outlet air valve 121 is closed, and the circulation air valve 113 is opened, so that the indoor air entering from the air outlet air inlet 1031 enters the circulation air duct 112 after being dehumidified by the third heat exchanger 106, and then returns to the indoor space through the fresh air outlet 1022 after being heated by the first heat exchanger 104, so as to realize the dehumidification mode.
Fresh air mode:
when only outdoor fresh air needs to be introduced into a room, a fresh air mode can be entered, and at the moment, the first heat exchanger 104, the second heat exchanger 105, the third heat exchanger 106 and the fourth heat exchanger 107 are controlled to stop running, the first fan 108 and the second fan 109 run according to a preset windshield, the circulating air valve 113 is closed, and the first side air valve 111 is closed.
In some embodiments, as shown in fig. 1, a bypass duct is respectively arranged on the fresh air duct at a position corresponding to the second heat exchanger 105 and on the exhaust air duct at positions corresponding to the third heat exchanger 106 and the fourth heat exchanger 107; a second side ventilation valve 116 is arranged on the bypass air duct 115 corresponding to the second heat exchanger 105; a third side ventilation valve 118 is arranged on the bypass air duct 117 corresponding to the third heat exchanger 106; a fourth side ventilation valve 120 is arranged on a bypass air duct 119 corresponding to the fourth heat exchanger 107; when the bypass damper is opened, air passes through the bypass duct. Because the structure of the general heat exchanger is provided with the fin and other structures, the resistance to the air is larger, and when the heat exchanger stops running in a certain running mode, the heat exchange is not needed, and the bypass air valve on the bypass air channel corresponding to the heat exchanger can be opened, so that most of the air can pass through the bypass air channel, the resistance to the air is reduced, and the energy consumption of the air blower is reduced.
For example, in the free cooling mode, the second side vent valve 116, the third side vent valve 118, and the fourth side vent valve 120 are opened.
In the auxiliary cooling mode, the second and third side vent valves 116, 118 are open.
In the heating mode, the second side vent valve 116, the fourth side vent valve 120 are open, or only the fourth side vent valve 120 is open.
In the fresh air mode, the second, third, and fourth side vent valves 116, 118, 120 are open.
In the internal circulation mode, the third bypass vent valve 117 is opened.
It should be noted that the arrangement of the structures in the above related embodiments is merely an example, and is not limited thereto, so long as the above corresponding functions can be achieved.
The air treatment equipment can be installed indoors in a suspended ceiling type, a cabinet type or a wall-mounted type in practical application, achieves various operation modes, is multifunctional, further recovers indoor exhaust energy through the various operation modes, improves energy efficiency, reduces energy dissipation of buildings to the outside, reduces indoor refrigeration and heating requirements in a green energy-saving building, further reduces material consumption by reducing the volume and the refrigerant quantity of a condenser and an evaporator, and further achieves temperature and humidity control and purification functions of fresh air entering a room through combination of a heat exchanger and a total heat exchange core body, and is matched with but not limited to a purification and humidification module, so that functions are further diversified.
Referring to fig. 3, fig. 3 is a flowchart of a control method of an air treatment apparatus according to another embodiment of the present application.
As shown in fig. 3, the control method of the air treatment device provided in this embodiment is applied to the air treatment device in any of the above embodiments, and includes:
step 31, determining a current operation mode;
and step 32, controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode.
In the scheme of the application, on one hand, the total heat exchange core is arranged in the air treatment equipment, the fresh air channel exchanges heat with the exhaust air channel through the total heat exchange core so as to perform heat recovery, and on the other hand, the heat exchangers in the refrigerant circulation system are arranged on the fresh air channel and the exhaust air channel, so that the operation of the heat exchangers can be controlled, the heat exchange with the fresh air channel and the exhaust air channel is realized so as to perform heat recovery again, and compared with the structure of performing heat recovery only through the total heat exchange core in the related art, the heat recovery can be performed more, and the heat recovery rate is improved.
Optionally, if it is determined that the current operation mode is a refrigeration mode, the refrigeration mode includes a free refrigeration mode and an auxiliary refrigeration mode, and according to a control strategy corresponding to the current operation mode, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled, including:
Acquiring the temperature of a fresh air inlet and the temperature of an exhaust air inlet in real time;
calculating the difference between the temperature of the fresh air inlet and the temperature of the exhaust air inlet to obtain a first difference;
comparing the first difference value with a first preset value;
if the first difference value is smaller than a first preset value, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, so that the fresh air channel and the exhaust air channel exchange heat, and a free refrigeration mode is realized;
if the first difference value is greater than or equal to a first preset value, the second heat exchanger and the third heat exchanger are controlled to stop running, and the first heat exchanger and the fourth heat exchanger run, so that the first heat exchanger is used as an evaporator to exchange heat with the fresh air duct, and the fourth heat exchanger is used as a condenser to exchange heat with the air exhaust duct, and an auxiliary refrigeration mode is realized.
Optionally, the control method may further include:
if the first difference value is smaller than a first preset value, the second side vent valve, the third side vent valve and the fourth side vent valve are controlled to be opened; and if the first difference value is larger than or equal to a first preset value, controlling the second side vent valve and the third side vent valve to be opened.
In the free cooling mode, the control method may further include: and controlling the first fan and the second fan to operate, stopping the operation of the compressor, closing the first side ventilation valve, closing the circulation air valve, opening the fresh air inlet air valve, and opening the exhaust air outlet air valve.
In the auxiliary cooling mode, the control method may further include: and controlling the first fan and the second fan to operate, controlling the compressor to operate, closing the first side ventilation valve, closing the circulation air valve, opening the fresh air inlet air valve, and opening the exhaust air outlet air valve.
Optionally, controlling the second heat exchanger and the third heat exchanger to stop running, and running the first heat exchanger and the fourth heat exchanger may specifically include:
controlling the second heat exchanger and the third heat exchanger to stop running, and controlling the first heat exchanger and the fourth heat exchanger to run;
calculating the difference between the temperature of the exhaust air inlet obtained in real time and the set temperature of the user to obtain a second difference;
comparing the second difference value with a second preset value;
if the second difference value is greater than or equal to a second preset value, comparing the second difference value with a third preset value;
if the second difference value is larger than or equal to a third preset value, judging whether the opening of the electronic expansion valve of the first heat exchanger and the opening of the electronic expansion valve of the fourth heat exchanger reach the maximum;
if the opening degree of the electronic expansion valve of the first heat exchanger and the opening degree of the electronic expansion valve of the fourth heat exchanger are not the maximum;
if the second difference value reaches the maximum value, comparing the second difference value with a fourth preset value;
and if the second difference value is smaller than the fourth preset value, controlling the first heat exchanger and the fourth heat exchanger to stop running for a preset time.
Referring to fig. 4, fig. 4 is a flowchart of a control method of a cooling mode according to another embodiment of the present application.
The present embodiment exemplifies the control method of the above cooling mode.
As shown in fig. 4, after receiving an on command of the cooling mode, the set temperature of the user is obtained, and the following procedure is performed:
step 40, acquiring the temperature of the fresh air inlet and the temperature of the exhaust air inlet in real time, and executing step 41.
Step 41, calculating the difference between the temperature of the fresh air inlet and the temperature of the exhaust air inlet to obtain a first difference value, and executing step 42.
Step 42, judging whether the first difference is smaller than a first preset value, if yes, executing step 43, otherwise, executing step 44.
And 43, controlling the first fan and the second fan to operate according to a preset windshield, stopping the operation of the compressor, and executing step 40.
In this step, a free cooling mode is entered.
And 44, controlling the second heat exchanger and the third heat exchanger to stop running, running the first heat exchanger and the fourth heat exchanger, calculating the difference between the temperature of the exhaust air inlet obtained in real time and the set temperature of the user to obtain a second difference value, and executing step 45.
In this step, the auxiliary cooling mode is entered.
Step 45, judging whether the second difference is smaller than a second preset value, if yes, executing step 40, otherwise, executing step 46.
Step 46, determining whether the second difference is smaller than a third preset value, if yes, executing step 40, otherwise, executing step 47.
Step 47, judging whether the opening degree of the electronic expansion valves of the first heat exchanger and the fourth heat exchanger is maximum, if yes, executing step 48, otherwise, executing step 40;
step 48, judging whether the second difference is smaller than a fourth preset value, if yes, executing step 40, otherwise, executing step 49;
step 49, controlling the first heat exchanger and the fourth heat exchanger to stop running for a preset time, and executing step 40.
In this embodiment, since the outdoor temperature is lower than the indoor temperature, the free cooling mode can be performed, and therefore the first preset value is a negative value.
The second preset value, the third preset value and the fourth preset value are sequentially increased, so that an optimized refrigeration control condition is set through the second preset value, if the condition cannot be met, the second preset value can be widened, if the condition cannot be met, the opening degree of an electronic expansion valve of the heat exchanger can be increased, the refrigerating capacity is increased, if the electronic expansion valve is opened to the maximum and cannot be increased any more, the second preset value is widened, the control effect is better, and if the condition of the fourth preset value is met, the operation can be temporarily stopped for saving energy, and the operation is continued for a period of time.
Specific values of the first preset value, the second preset value, the third preset value and the fourth preset value can be set according to actual needs, and are not particularly limited herein.
Optionally, if it is determined that the current operation mode is a heating mode, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled according to a control strategy corresponding to the current operation mode, including:
acquiring the temperature of a fresh air inlet;
comparing the temperature of the fresh air inlet with a fifth preset value;
if the temperature of the fresh air inlet is greater than a fifth preset value, controlling the first heat exchanger and the third heat exchanger to operate, stopping the second heat exchanger and the fourth heat exchanger, enabling the first heat exchanger to serve as a condenser to perform heat exchange with the fresh air duct, and enabling the third heat exchanger to serve as an evaporator to perform heat exchange with the air exhaust duct so as to realize a heating mode;
if the temperature of the fresh air inlet is smaller than or equal to a fifth preset value, the first heat exchanger, the second heat exchanger and the third heat exchanger are controlled to operate, the fourth heat exchanger stops operating, the first heat exchanger is used as a condenser to exchange heat with the fresh air duct, the third heat exchanger is used as an evaporator to exchange heat with the air exhaust duct, so that a heating mode is realized, and the second heat exchanger preheats air in the fresh air duct. In the embodiment, the problem of serious frosting caused by heat exchange between the indoor hot air and the fourth heat exchanger after heat exchange of the total heat exchange core is avoided, and the heat exchange effect with the third heat exchanger is good due to the fact that the indoor air temperature is higher, so that the heating energy consumption is reduced.
The specific value of the fifth preset value may be set according to actual needs, and is not specifically limited herein.
In the heating mode, the control method may further include: and controlling the first fan and the second fan to operate, controlling the compressor to operate, closing the first side ventilation valve, closing the circulation air valve, opening the fresh air inlet air valve, and opening the exhaust air outlet air valve.
Optionally, the control method may further include:
if the temperature of the fresh air inlet is greater than a fifth preset value, controlling the second side ventilation valve and the fourth side ventilation valve to be opened;
and if the temperature of the fresh air inlet is smaller than or equal to a fifth preset value, controlling the fourth side ventilation valve to be opened.
Optionally, if it is determined that the current operation mode is the fresh air mode, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled according to a control strategy corresponding to the current operation mode, including:
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger to stop running.
Optionally, if it is determined that the current operation mode is a fresh air mode, the control method further includes:
and controlling the second side vent valve, the third side vent valve and the fourth side vent valve to be opened.
In the fresh air mode, the control method may further include: and controlling the first fan and the second fan to operate, stopping the operation of the compressor, closing the first side ventilation valve, closing the circulation air valve, opening the fresh air inlet air valve, and opening the exhaust air outlet air valve.
Optionally, if it is determined that the current operation mode is the bypass mode, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled according to a control strategy corresponding to the current operation mode, including:
the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, and the first side ventilation valve is opened, so that air at the exhaust air inlet is discharged outdoors through the bypass air channel corresponding to the total heat exchange core body, and the air passing through the bypass air channel is not subjected to heat exchange with air in the fresh air channel, so that a bypass mode is realized.
In the bypass mode, the control method may further include: and controlling the first fan and the second fan to operate, stopping the operation of the compressor, closing the circulating air valve, opening the fresh air inlet air valve, and opening the air exhaust air outlet valve.
Optionally, if the current operation mode is determined to be the internal circulation mode, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled according to a control strategy corresponding to the current operation mode, including:
The first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, the fresh air inlet valve is closed, the air outlet valve is closed, and the circulating air valve is opened, so that indoor air entering from the air outlet is returned to the indoor through the circulating air channel and the fresh air outlet, and an internal circulation mode is realized.
In the internal circulation mode, the control method may further include: and controlling the first fan to run, stopping the second fan from running, stopping the compressor from running, closing the first side ventilation valve, and opening the third side ventilation valve.
Optionally, if the current operation mode is determined to be the dehumidification mode, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled according to a control strategy corresponding to the current operation mode, including:
the second heat exchanger and the fourth heat exchanger are controlled to stop running, the first heat exchanger achieves the condenser function, the third heat exchanger achieves the evaporator function, the fresh air inlet air valve is closed, the air outlet air valve is closed, the circulating air valve is opened, indoor air entering from the air outlet air inlet is dehumidified by the third heat exchanger and then enters the circulating air channel, and then the indoor air is heated by the first heat exchanger and then returned to the indoor through the fresh air outlet, so that a dehumidification mode is achieved.
In the internal circulation mode, the control method may further include: and controlling the first fan to run, stopping running of the second fan, running of the compressor, and closing the first side ventilation valve.
The control method can further comprise controlling the four-way valve to change direction when the refrigerating mode and the heating mode are switched.
In some embodiments, the control method may further include controlling the function module to turn on the corresponding function.
The specific implementation manner of the control method of the air treatment device provided by the embodiment of the present application may refer to the implementation manner of the air treatment device in any of the above embodiments, and will not be described herein.
Referring to fig. 5, fig. 5 is a schematic structural view of a control device of an air treatment apparatus according to another embodiment of the present application.
As shown in fig. 5, the control device of the air treatment apparatus provided in this embodiment is applied to the air treatment apparatus according to any of the above embodiments, and the control apparatus includes:
a determining module 501, configured to determine a current operation mode;
the control module 502 is configured to control the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to a control strategy corresponding to the current operation mode.
Optionally, if it is determined that the current operation mode is a cooling mode, the cooling mode includes a free cooling mode and an auxiliary cooling mode, and the control module is specifically configured to:
Acquiring the temperature of a fresh air inlet and the temperature of an exhaust air inlet in real time;
calculating the difference between the temperature of the fresh air inlet and the temperature of the exhaust air inlet to obtain a first difference;
comparing the first difference value with a first preset value;
if the first difference value is smaller than a first preset value, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, so that the fresh air channel and the exhaust air channel exchange heat, and a free refrigeration mode is realized;
if the first difference value is greater than or equal to a first preset value, the second heat exchanger and the third heat exchanger are controlled to stop running, and the first heat exchanger and the fourth heat exchanger run, so that the first heat exchanger is used as an evaporator to exchange heat with the fresh air duct, and the fourth heat exchanger is used as a condenser to exchange heat with the air exhaust duct, and an auxiliary refrigeration mode is realized.
Optionally, the control module is further configured to:
if the first difference value is smaller than a first preset value, the second side vent valve, the third side vent valve and the fourth side vent valve are controlled to be opened;
and if the first difference value is larger than or equal to a first preset value, controlling the second side vent valve and the third side vent valve to be opened.
Optionally, the control module is specifically configured to:
Controlling the second heat exchanger and the third heat exchanger to stop running, and controlling the first heat exchanger and the fourth heat exchanger to run;
calculating the difference between the temperature of the exhaust air inlet obtained in real time and the set temperature of the user to obtain a second difference;
comparing the second difference value with a second preset value;
if the second difference value is greater than or equal to a second preset value, comparing the second difference value with a third preset value;
if the second difference value is larger than or equal to a third preset value, judging whether the opening of the electronic expansion valve of the first heat exchanger and the opening of the electronic expansion valve of the fourth heat exchanger reach the maximum;
if the opening degree of the electronic expansion valve of the first heat exchanger and the opening degree of the electronic expansion valve of the fourth heat exchanger are not the maximum;
if the second difference value reaches the maximum value, comparing the second difference value with a fourth preset value;
and if the second difference value is smaller than the fourth preset value, controlling the first heat exchanger and the fourth heat exchanger to stop running for a preset time.
Optionally, if it is determined that the current operation mode is a heating mode, the control module is specifically configured to:
acquiring the temperature of a fresh air inlet;
comparing the temperature of the fresh air inlet with a fifth preset value;
if the temperature of the fresh air inlet is higher than a fifth preset value, the air inlet temperature is higher, the total heat exchange core is not influenced, the operation of the first heat exchanger and the third heat exchanger can be controlled, the second heat exchanger and the fourth heat exchanger stop operating, the first heat exchanger is used as a condenser to exchange heat with a fresh air channel, and the third heat exchanger is used as an evaporator to exchange heat with an exhaust air channel, so that a heating mode is realized;
If the temperature of the fresh air inlet is smaller than or equal to a fifth preset value, the temperature of the fresh air inlet is lower, the effect on the total heat exchange core is achieved, the operation of the first heat exchanger, the second heat exchanger and the third heat exchanger can be controlled, the operation of the fourth heat exchanger is stopped, the first heat exchanger is used as a condenser to conduct heat exchange with a fresh air channel, the third heat exchanger is used as an evaporator to conduct heat exchange with an exhaust air channel, a heating mode is achieved, and the second heat exchanger is used for preheating air in the fresh air channel.
Optionally, the control module is further configured to:
if the temperature of the fresh air inlet is greater than a fifth preset value, controlling the second side ventilation valve and the fourth side ventilation valve to be opened;
and if the temperature of the fresh air inlet is smaller than or equal to a fifth preset value, controlling the fourth side ventilation valve to be opened.
Optionally, if it is determined that the current operation mode is a fresh air mode, the control module is specifically configured to:
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger to stop running.
Optionally, it is determined that the current operation mode is a fresh air mode, and the control module is further configured to:
and controlling the second side vent valve, the third side vent valve and the fourth side vent valve to be opened.
Optionally, if it is determined that the current operation mode is the bypass mode, the control module is specifically configured to:
The first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, and the first side ventilation valve is opened, so that air at the exhaust air inlet is discharged outdoors through the bypass air channel corresponding to the total heat exchange core body, and the air passing through the bypass air channel is not subjected to heat exchange with air in the fresh air channel, so that a bypass mode is realized.
Optionally, if it is determined that the current operation mode is an internal circulation mode, the control module is specifically configured to:
the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, the fresh air inlet valve is closed, the air outlet valve is closed, and the circulating air valve is opened, so that indoor air entering from the air outlet is returned to the indoor through the circulating air channel and the fresh air outlet, and an internal circulation mode is realized.
Optionally, if the current operation mode is determined to be the dehumidification mode, the control module is specifically configured to:
the second heat exchanger and the fourth heat exchanger are controlled to stop running, the first heat exchanger achieves the condenser function, the third heat exchanger achieves the evaporator function, the fresh air inlet air valve is closed, the air outlet air valve is closed, the circulating air valve is opened, indoor air entering from the air outlet air inlet is dehumidified by the third heat exchanger and then enters the circulating air channel, and then the indoor air is heated by the first heat exchanger and then returned to the indoor through the fresh air outlet, so that a dehumidification mode is achieved.
The specific implementation manner of the control device of the air treatment device provided in the embodiment of the present application may refer to the implementation manner of the method in any of the above examples, and will not be described herein.
Referring to fig. 6, fig. 6 is a schematic structural view of a control device of an air treatment apparatus according to another embodiment of the present application.
As shown in fig. 6, a control device for an air treatment apparatus according to the present embodiment includes:
a processor 601 and a memory 602 connected to the processor 601;
the memory 602 is used to store a computer program;
the processor 601 is operative to invoke and execute a computer program in memory to perform a method as in any of the embodiments above.
Optionally, the compressor, the first fan, the second fan, the first side ventilation valve, the second side ventilation valve, the third side ventilation valve, the fourth side ventilation valve, the first heat exchanger, the second heat exchanger, the third heat exchanger, the fourth heat exchanger, the circulation air valve, the fresh air inlet air valve, the exhaust air outlet air valve, the functional module and the like in the related embodiments are respectively connected with the processor.
The specific implementation manner of the control device of the air treatment device provided in the embodiment of the present application may refer to the implementation manner of the method in any of the above examples, and will not be described herein.
It is to be understood that the same or similar parts in the above embodiments may be referred to each other, and that in some embodiments, the same or similar parts in other embodiments may be referred to.
It should be noted that in the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present application, unless otherwise indicated, the meaning of "plurality" means at least two.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and further implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, may be implemented using any one or combination of the following techniques, as is well known in the art: discrete logic circuits having logic gates for implementing logic functions on data signals, application specific integrated circuits having suitable combinational logic gates, programmable Gate Arrays (PGAs), field Programmable Gate Arrays (FPGAs), and the like.
Those of ordinary skill in the art will appreciate that all or a portion of the steps carried out in the method of the above-described embodiments may be implemented by a program to instruct related hardware, where the program may be stored in a computer readable storage medium, and where the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules may also be stored in a computer readable storage medium if implemented in the form of software functional modules and sold or used as a stand-alone product.
The above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, or the like.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (12)

1. A control method of an air treatment apparatus, characterized by being applied to an air treatment apparatus, the apparatus comprising: an air duct system and a refrigerant circulation system;
wherein, the wind channel system includes: the full heat exchange core body, and a fresh air duct and an exhaust air duct which cross through the full heat exchange core body; the fresh air duct exchanges heat with the exhaust air duct through the total heat exchange core body so as to recover heat; the fresh air channel is provided with a fresh air inlet and a fresh air outlet, and the exhaust air channel is provided with an exhaust air inlet and an exhaust air outlet;
the refrigerant circulation system comprises a first heat exchanger arranged between the fresh air outlet and the total heat exchange core, a second heat exchanger arranged between the fresh air inlet and the total heat exchange core, a third heat exchanger arranged between the exhaust air inlet and the total heat exchange core, and a fourth heat exchanger arranged between the exhaust air outlet and the total heat exchange core; the first heat exchanger and the second heat exchanger can exchange heat with the fresh air duct, and the third heat exchanger and the fourth heat exchanger can exchange heat with the exhaust air duct so as to perform heat recovery;
The exhaust air duct is provided with a bypass air duct corresponding to the total heat exchange core body;
a first side ventilation valve is arranged on the bypass air duct corresponding to the total heat exchange core body;
when the first side ventilation valve is opened, the air of the exhaust air inlet is discharged out of the room through the bypass air duct corresponding to the total heat exchange core body, and the air passing through the bypass air duct does not exchange heat with the air of the fresh air duct;
a bypass air channel is respectively arranged at the position of the fresh air channel corresponding to the second heat exchanger and the position of the exhaust air channel corresponding to the third heat exchanger and the fourth heat exchanger;
a second side ventilation valve is arranged on the bypass air duct corresponding to the second heat exchanger;
a third side ventilation valve is arranged on the bypass air duct corresponding to the third heat exchanger;
a fourth side ventilation valve is arranged on the bypass air duct corresponding to the fourth heat exchanger;
when the bypass air valve is opened, air passes through the bypass air duct;
the air duct system further includes:
one end of the circulating air channel is communicated with the fresh air channel, the total heat exchange core body and the fresh air outlet, and the other end of the circulating air channel is communicated with the exhaust air channel, the total heat exchange core body and the exhaust air inlet;
A circulating air valve arranged on the circulating air duct;
a fresh air inlet valve arranged on the fresh air inlet;
an exhaust air outlet valve arranged on the exhaust air outlet;
the fresh air inlet air valve is closed, the air outlet air valve is closed, the circulating air valve is opened, and indoor air entering from the air outlet air inlet is returned to the indoor through the circulating air duct and the fresh air outlet, so that internal circulation is realized;
the control method comprises the following steps:
determining a current operation mode;
if it is determined that the current operation mode is a refrigeration mode, where the refrigeration mode includes a free refrigeration mode and an auxiliary refrigeration mode, and according to a control strategy corresponding to the current operation mode, the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger are controlled, including:
acquiring the temperature of a fresh air inlet and the temperature of an exhaust air inlet in real time;
calculating the difference between the temperature of the fresh air inlet and the temperature of the exhaust air inlet to obtain a first difference;
comparing the first difference value with a first preset value;
if the first difference value is smaller than the first preset value, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, so that the fresh air duct and the exhaust air duct exchange heat, and a free refrigeration mode is realized;
If the first difference value is greater than or equal to the first preset value, the second heat exchanger and the third heat exchanger are controlled to stop running, and the first heat exchanger and the fourth heat exchanger run, so that the first heat exchanger is used as an evaporator to exchange heat with the fresh air duct, and the fourth heat exchanger is used as a condenser to exchange heat with the exhaust air duct, and an auxiliary refrigeration mode is realized;
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode.
2. The control method according to claim 1, characterized in that the control method further comprises:
if the first difference value is smaller than the first preset value, controlling the second side vent valve, the third side vent valve and the fourth side vent valve to be opened;
and if the first difference value is larger than or equal to the first preset value, controlling the second side vent valve and the third side vent valve to be opened.
3. The control method according to claim 1, wherein the controlling the second heat exchanger and the third heat exchanger to stop operation, the first heat exchanger and the fourth heat exchanger to operate, comprises:
Controlling the second heat exchanger and the third heat exchanger to stop running, and controlling the first heat exchanger and the fourth heat exchanger to run;
calculating the difference between the temperature of the exhaust air inlet and the set temperature of the user, which is obtained in real time, to obtain a second difference;
comparing the second difference value with a second preset value;
if the second difference value is greater than or equal to the second preset value, comparing the second difference value with a third preset value;
if the second difference value is larger than or equal to the third preset value, judging whether the opening degrees of the electronic expansion valves of the first heat exchanger and the fourth heat exchanger reach the maximum;
if the opening degree of the electronic expansion valve of the first heat exchanger and the opening degree of the electronic expansion valve of the fourth heat exchanger are not the maximum;
if the second difference value reaches the maximum value, comparing the second difference value with a fourth preset value;
and if the second difference value is smaller than the fourth preset value, controlling the first heat exchanger and the fourth heat exchanger to stop running for preset time.
4. The control method according to claim 1, wherein if it is determined that the current operation mode is a heating mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to the control policy corresponding to the current operation mode includes:
Acquiring the temperature of the fresh air inlet;
comparing the temperature of the fresh air inlet with a fifth preset value;
if the temperature of the fresh air inlet is greater than the fifth preset value, controlling the first heat exchanger and the third heat exchanger to operate, and stopping the second heat exchanger and the fourth heat exchanger to operate, so that the first heat exchanger is used as a condenser to perform heat exchange with the fresh air duct, and the third heat exchanger is used as an evaporator to perform heat exchange with the exhaust duct to realize a heating mode;
if the temperature of the fresh air inlet is smaller than or equal to the fifth preset value, the first heat exchanger, the second heat exchanger and the third heat exchanger are controlled to operate, and the fourth heat exchanger stops operating, so that the first heat exchanger serves as a condenser to exchange heat with the fresh air duct, the third heat exchanger serves as an evaporator to exchange heat with the exhaust duct, a heating mode is realized, and the second heat exchanger preheats air in the fresh air duct.
5. The control method according to claim 4, characterized in that the control method further comprises:
if the temperature of the fresh air inlet is greater than the fifth preset value, controlling the second side ventilation valve and the fourth side ventilation valve to be opened;
And if the temperature of the fresh air inlet is smaller than or equal to the fifth preset value, controlling the fourth side ventilation valve to be opened.
6. The control method according to claim 1, wherein if it is determined that the current operation mode is the fresh air mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to the control strategy corresponding to the current operation mode includes:
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger to stop running.
7. The control method of claim 6, wherein the current operation mode is determined to be a fresh air mode, the control method further comprising:
and controlling the second side vent valve, the third side vent valve and the fourth side vent valve to be opened.
8. The control method according to claim 1, wherein if it is determined that the current operation mode is the bypass mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to the control strategy corresponding to the current operation mode includes:
and controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger to stop running, and opening a first side ventilation valve to enable air at an exhaust air inlet to be discharged outdoors through a bypass air channel corresponding to the total heat exchange core, wherein the air passing through the bypass air channel is not subjected to heat exchange with the air of the fresh air channel, so that the bypass mode is realized.
9. The control method according to claim 1, wherein if the current operation mode is determined to be the internal circulation mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to the control strategy corresponding to the current operation mode includes:
the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, the fresh air inlet valve is closed, the air outlet valve is closed, and the circulating air valve is opened, so that indoor air entering from the air outlet is returned to the indoor through the circulating air duct and the fresh air outlet, and the internal circulation mode is realized.
10. The control method according to claim 1, wherein if it is determined that the current operation mode is the dehumidification mode, the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger, and the fourth heat exchanger according to the control strategy corresponding to the current operation mode includes:
the second heat exchanger is controlled to stop running, the first heat exchanger achieves the condenser function, the third heat exchanger achieves the evaporator function, the fresh air inlet valve is closed, the air outlet valve is closed, the circulating air valve is opened, indoor air entering from the air outlet is dehumidified through the third heat exchanger and enters the circulating air channel, and then the indoor air is heated through the first heat exchanger and returns to the indoor through the fresh air outlet, so that the dehumidification mode is achieved.
11. A control device for an air treatment apparatus, characterized by being applied to the control method according to any one of claims 1 to 10, the control device comprising:
the determining module is used for determining the current operation mode;
the control module is used for controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode;
if it is determined that the current operation mode is a refrigeration mode, the refrigeration mode includes a free refrigeration mode and an auxiliary refrigeration mode, and the controlling the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger according to a control strategy corresponding to the current operation mode includes:
acquiring the temperature of a fresh air inlet and the temperature of an exhaust air inlet in real time;
calculating the difference between the temperature of the fresh air inlet and the temperature of the exhaust air inlet to obtain a first difference;
comparing the first difference value with a first preset value;
if the first difference value is smaller than the first preset value, the first heat exchanger, the second heat exchanger, the third heat exchanger and the fourth heat exchanger are controlled to stop running, so that the fresh air duct and the exhaust air duct exchange heat, and a free refrigeration mode is realized;
If the first difference value is greater than or equal to the first preset value, the second heat exchanger and the third heat exchanger are controlled to stop running, and the first heat exchanger and the fourth heat exchanger run, so that the first heat exchanger serves as an evaporator to exchange heat with the fresh air duct, and the fourth heat exchanger serves as a condenser to exchange heat with the exhaust air duct, and an auxiliary refrigeration mode is realized.
12. A control device of an air treatment apparatus, comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program;
the processor is configured to invoke and execute the computer program in the memory to perform the method of any of claims 1-10.
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