CN114110980A - Fresh air equipment control method and device, fresh air equipment and storage medium - Google Patents

Fresh air equipment control method and device, fresh air equipment and storage medium Download PDF

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Publication number
CN114110980A
CN114110980A CN202111416656.8A CN202111416656A CN114110980A CN 114110980 A CN114110980 A CN 114110980A CN 202111416656 A CN202111416656 A CN 202111416656A CN 114110980 A CN114110980 A CN 114110980A
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China
Prior art keywords
fresh air
heat exchange
exchange system
temperature
equipment
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CN202111416656.8A
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CN114110980B (en
Inventor
徐振坤
杜顺开
黄剑云
高卓贤
李金波
刘步东
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GD Midea Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • 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
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature

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  • 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 invention discloses a fresh air equipment control method and device, fresh air equipment and a storage medium, and relates to the technical field of air treatment equipment, wherein the fresh air equipment comprises a first heat exchange system and a second heat exchange system; the fresh air equipment control method comprises the following steps: acquiring the fresh air temperature and the set temperature of fresh air equipment; comparing the fresh air temperature with a preset temperature threshold value and a set temperature respectively to obtain a first comparison result; and controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result. According to the invention, the fresh air temperature of the fresh air introduced by the fresh air equipment and the set temperature of the room served by the fresh air equipment are detected, the heat exchange capacity required to be provided by the fresh air equipment is determined, and the operation state of the two-stage heat exchange system is determined according to the heat exchange capacity required to be provided, so that the fresh air equipment operates in a higher energy efficiency state, and the energy consumption of the fresh air equipment is reduced.

Description

Fresh air equipment control method and device, fresh air equipment and storage medium
Technical Field
The invention relates to the technical field of air processing equipment, in particular to a fresh air equipment control method and device, fresh air equipment and a storage medium.
Background
With the improvement of life quality of people, the requirements on indoor thermal environment are not only cold and hot, but also the requirements on health are raised, higher requirements on freshness and cleanliness are provided, and fresh air is applied more and more as an effective and important solution. At present, most of fresh air equipment is newly added with fresh air heat and humidity treatment on the basis of the original indoor heat and humidity environment treatment, and the energy consumption is increased.
Disclosure of Invention
The invention mainly aims to provide a control method and device for fresh air equipment, the fresh air equipment and a storage medium, and aims to solve the technical problem that the energy consumption of the fresh air equipment is high in the prior art.
In order to achieve the purpose, the invention provides a fresh air equipment control method, which is applied to fresh air equipment, wherein the fresh air equipment comprises a first heat exchange system and a second heat exchange system, the first heat exchange system is used for exchanging heat between a fresh air channel and the external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an air exhaust channel;
the fresh air equipment control method comprises the following steps:
acquiring the fresh air temperature and the set temperature of fresh air equipment;
comparing the fresh air temperature with a preset temperature threshold value and a set temperature respectively to obtain a first comparison result; and the number of the first and second groups,
and controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result.
Optionally, the preset temperature threshold includes a first temperature threshold, the first temperature threshold is greater than the set temperature, and the operating state of the first heat exchange system and/or the second heat exchange system is controlled according to the first comparison result, including:
and when the fresh air equipment is in a refrigeration mode and the first comparison result is that the fresh air temperature is greater than or equal to the first temperature threshold value, controlling the second heat exchange system to be in refrigeration operation.
Optionally, controlling the operating state of the first heat exchange system and/or the second heat exchange system according to the first comparison result, further includes:
when the fresh air equipment is in a refrigeration mode, and the fresh air temperature is smaller than a first temperature threshold value as a first comparison result, and the fresh air temperature is larger than or equal to a set temperature, the first heat exchange system is controlled to perform refrigeration operation.
Optionally, controlling the operating state of the first heat exchange system and/or the second heat exchange system according to the first comparison result, further includes:
when the fresh air equipment is in a refrigeration mode and the fresh air temperature is lower than the set temperature as a first comparison result, controlling the first heat exchange system and the second heat exchange system to be in a closed state.
Optionally, the preset temperature threshold includes a second temperature threshold, the second temperature threshold is smaller than the set temperature, and the operating state of the first heat exchange system and/or the second heat exchange system is controlled according to the first comparison result, including:
and when the fresh air equipment is in a heating mode and the temperature of the fresh air is smaller than or equal to the second temperature threshold value as a first comparison result, controlling the second heat exchange system to be in heating operation.
Optionally, controlling the operating state of the first heat exchange system and/or the second heat exchange system according to the first comparison result, further includes:
when the fresh air equipment is in a heating mode, the temperature of the fresh air is larger than a second temperature threshold value as a first comparison result, and the temperature of the fresh air is smaller than or equal to a set temperature, the first heat exchange system is controlled to be in heating operation.
Optionally, controlling the operating state of the first heat exchange system and/or the second heat exchange system according to the first comparison result, further includes:
when the fresh air equipment is in a heating mode and the fresh air temperature is greater than the set temperature as a first comparison result, controlling the first heat exchange system and the second heat exchange system to be in a closed state.
Optionally, after controlling the operating state of the first heat exchange system and/or the second heat exchange system according to the first comparison result, the method further includes:
acquiring the air outlet temperature of fresh air equipment;
comparing the set temperature with an indoor temperature threshold, and comparing the outlet air temperature with an outlet air temperature threshold to obtain a second comparison result; and the number of the first and second groups,
and adjusting the heat exchange capacity of the first heat exchange system and/or the second heat exchange system according to the second comparison result.
In addition, in order to achieve the purpose, the invention also provides a fresh air equipment control device, the fresh air equipment control method is applied to fresh air equipment, the fresh air equipment comprises a first heat exchange system and a second heat exchange system, the first heat exchange system is used for exchanging heat between the fresh air channel and the external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and the air exhaust channel;
fresh air equipment controlling means includes:
the detection module is used for acquiring the fresh air temperature and the set temperature of the fresh air equipment;
the comparison module is used for comparing the fresh air temperature with a preset temperature threshold value and a set temperature respectively to obtain a first comparison result; and the number of the first and second groups,
and the driving module is used for controlling the running state of the first heat exchange system and/or the second heat exchange system according to the first comparison result.
In addition, in order to achieve the above object, the present invention further provides a fresh air device, including: the fresh air equipment control method comprises a first heat exchange system, a second heat exchange system, a storage device, a processor and a fresh air equipment control program which is stored on the storage device and can run on the processor, wherein the first heat exchange system is used for exchanging heat between a fresh air channel and the external environment, the second heat exchange system is used for exchanging heat between the fresh air channel and an air exhaust channel, and the fresh air equipment control program is executed by the processor to realize the fresh air equipment control method.
Optionally, the fresh air device has a fresh air channel and an exhaust air channel, and the first heat exchange system includes a first compressor, a first four-way valve, a first heat exchanger, a first throttling element and a second heat exchanger which are connected in sequence; the second heat exchange system comprises a second compressor, a second four-way valve, a third heat exchanger, a second throttling element and a fourth heat exchanger which are connected in sequence; wherein,
the first heat exchanger is arranged in the external environment;
a second heat exchanger, a fourth heat exchanger and a fresh air fan are sequentially arranged in the fresh air channel from the outdoor to the indoor direction;
the third heat exchanger and the exhaust fan are arranged in the exhaust channel.
In addition, in order to achieve the above object, the present invention further provides a storage medium, in which a fresh air device control program is stored, and when the fresh air device control program is executed by a processor, the fresh air device control method is implemented.
In the invention, the fresh air equipment comprises a first heat exchange system and a second heat exchange system, wherein the first heat exchange system is used for exchanging heat between the fresh air channel and the external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and the air exhaust channel; acquiring fresh air temperature and set temperature; then, comparing the fresh air temperature with a preset temperature threshold value and a set temperature respectively to obtain a first comparison result; and then controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result. According to the invention, the fresh air temperature and the set temperature of the fresh air introduced by the fresh air equipment are detected, the heat exchange capacity required to be provided by the fresh air equipment is determined, and the operation state of the two-stage heat exchange system is determined according to the heat exchange capacity required to be provided, so that the fresh air equipment operates in a high energy efficiency state, and the energy consumption of the fresh air equipment is reduced.
Drawings
Fig. 1 is a block diagram of a fresh air device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of a fresh air device according to the present invention;
FIG. 3 is a schematic flow chart of a control method for a fresh air device according to a first embodiment of the present invention;
FIG. 4 is a schematic flow chart of a control method for a fresh air device according to a second embodiment of the present invention;
FIG. 5 is a schematic flow chart of a control method for a fresh air device according to a third embodiment of the present invention;
FIG. 6 is a flow chart of a fourth embodiment of the control method for the fresh air device according to the present invention
Fig. 7 is a block diagram of the first embodiment of the fresh air device control apparatus according to the present invention.
The reference numbers illustrate:
reference numerals Name (R) Reference numerals Name (R)
1001 Processor with a memory having a plurality of memory cells C1～C2 First to second compressors
1002 Communication bus V1～V2 First to second four-way valves
1003 User interface H1～H4 First to fourth heat exchangers
1004 Network interface K1～K2 First to second throttling elements
1005 Memory device Y1～Y3 First to third fans
1006 First heat exchange system 100 Detection module
1007 Second heat exchange system 200 Comparison module
10 Fresh air channel 300 Drive module
20 Air exhaust channel
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a block diagram of a fresh air device in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the fresh air device may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005, a first heat exchange system 1006, and a second heat exchange system 1007. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may further include a standard wired interface and a wireless interface, and the wired interface for the user interface 1003 may be a USB interface in the present invention. The network interface 1004 may optionally include a standard wired interface, a Wireless interface (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory or a Non-volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001. The first heat exchange system 1006 is used for exchanging heat between a fresh air channel and an external environment, and the second heat exchange system 1007 is used for exchanging heat between the fresh air channel and an exhaust channel and the external environment.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the fresh air device and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in FIG. 1, memory 1005, identified as one type of computer storage medium, may include an operating system, a network communication module, a user interface module, and a fresh air device control program.
In the fresh air device shown in fig. 1, the network interface 1004 is mainly used for connecting a background server and performing data communication with the background server; the user interface 1003 is mainly used for connecting user equipment; the fresh air device calls a fresh air device control program stored in the memory 1005 through the processor 1001, and executes the fresh air device control method provided by the embodiment of the invention.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an embodiment of the fresh air device of the present invention. In order to more clearly illustrate the fresh air device control method of the present invention, a fresh air device 1006 is provided, and the fresh air device control method is executed on the basis of the fresh air device 1006.
As shown in fig. 2, the fresh air device may have a first heat exchange system 1006 and a second heat exchange system 1007. The first heat exchange system 1006 may include a first compressor C1, a first four-way valve V1, a first heat exchanger H1, a first throttling element K1, and a second heat exchanger H2. Second heat exchange system 1007 can include a second compressor C2, a second four-way valve V2, a third heat exchanger H3, a second throttling element K2, and a fourth heat exchanger H4. The first throttling element K1 and the second throttling element K2 may be electronic expansion valves or capillary tubes. The first compressor C1 and the second compressor C2 are two separate compressors.
In addition, the first heat exchange system and the second heat exchange system can also share one multi-cylinder compressor. Specifically, the fresh air device includes a compressor having two independent cylinders. The first cylinder in the compressor is connected to a first four-way valve V1, a first heat exchanger H1, a first throttle element K1, and a second heat exchanger H2 to form a first heat exchange system 1006. The second cylinder in the compressor is connected with a second four-way valve V2, a third heat exchanger H3, a second throttling element K2 and a fourth heat exchanger H4 to form a second heat exchange system 1007. And the refrigerants in the first heat exchange system and the second heat exchange system are isolated from each other.
It should be noted that the fresh air device further has a fresh air channel 10 and an exhaust air channel 20, the fresh air channel 10 is used for conveying air from the external environment to the indoor environment, and the exhaust air channel 20 is used for conveying air from the indoor environment to the external environment. The first heat exchanger H1 in the first heat exchanging system 1006 may be in an external environment, and the second heat exchanger H2 may be in the fresh air channel 10, so as to realize heat exchange between the fresh air channel 10 and the external environment. The third heat exchanger H3 in the second heat exchanging system 1007 may be located in the exhaust channel 20, and the fourth heat exchanger H4 may be located in the fresh air channel 10, so as to realize heat exchange between the fresh air channel 10 and the exhaust channel 20. Correspondingly, the first heat exchange system 1006 further includes a first fan Y1 corresponding to the first heat exchanger H1, where the first fan is configured to realize heat exchange between the refrigerant in the first heat exchanger H1 and the external environment. The fresh air channel 10 is sequentially provided with a second heat exchanger H2, a fourth heat exchanger H4 and a second fan Y2 from the outdoor to the indoor direction, and the second fan Y2 is used for extracting air from the external environment to the fresh air channel 10. The exhaust duct 20 is provided with a third heat exchanger H3 and a third fan Y3 in this order from the outdoor to the indoor direction, and the third fan Y3 is used for extracting air from the indoor environment into the exhaust duct 20.
The working principle of the fresh air equipment is as follows: the second fan Y2 extracts fresh air from the external environment, and the fresh air passes through the second heat exchanger H2 and the fourth heat exchanger H4 in sequence to exchange heat for two times and then is conveyed to the indoor environment. The third fan Y3 extracts exhaust air from the indoor environment, and the exhaust air is subjected to primary heat exchange by the third heat exchanger H3 and then is conveyed to the outdoor. The fresh air equipment can have a cooling mode and a heating mode, wherein the cooling mode refers to that fresh air is cooled and/or dehumidified by the second heat exchanger H2 and the fourth heat exchanger H4 and then is conveyed to the indoor; the heating mode refers to that fresh air is heated by the second heat exchanger H2 and the fourth heat exchanger H4 and then is conveyed to the room.
It should be noted that the fresh air device 1006 may also include more or fewer components than those shown, or some components may be combined, or a different arrangement of components. For example, the rear end of the fresh air channel 10 in the fresh air device can also be provided with a humidifying device. Or, the first heat exchange system 1006 and the second heat exchange system 1007 may both be provided with a plurality of heat exchangers in the fresh air channel 10; the heat exchangers in each heat exchanger system are arranged in a crossed mode in sequence. For example, the first heat exchange system 1006 further comprises a third throttling element and a fifth heat exchanger, and the second heat exchange system 1007 further comprises a fourth throttling element and a sixth heat exchanger. The third throttling element is arranged between the second heat exchanger H2 and a fifth heat exchanger, and the fifth heat exchanger is connected with the first compressor; the fourth throttling element is arranged between the fourth heat exchanger H4 and a sixth heat exchanger, which is connected to the second compressor. The fresh air channel 10 is provided with a second heat exchanger H2, a fourth heat exchanger H4, a fifth heat exchanger, a sixth heat exchanger and a second fan Y2 in sequence from the outdoor to the indoor direction.
Based on the hardware structure, the embodiment of the control method of the fresh air equipment is provided.
Referring to fig. 3, fig. 3 is a schematic flow chart of a control method of a fresh air device according to a first embodiment of the present invention. The invention provides a first embodiment of a fresh air device control method.
In a first embodiment, the fresh air device control method can be applied to the fresh air device as described above, and includes the following steps:
step S10: acquiring the fresh air temperature and the set temperature of the fresh air equipment.
It should be understood that the main execution body of the present embodiment is the above fresh air device, and the fresh air device has functions of data processing, data communication, program operation, and the like. Generally, the operation of each component in the fresh air device can be driven by a core controller, so the execution main body of this embodiment may also be the core controller in the fresh air device, and the core controller may be the processor.
The fresh air temperature refers to the temperature of air extracted by the fresh air device from the external environment. The set temperature may be a temperature that the environment served by the fresh air device needs to reach, which may be determined by the processor according to a preset program. Specifically, the processor may determine the corresponding set temperature according to the current season, time, and the like; or, the processor may also determine a corresponding set temperature according to the current environmental parameter, for example, the processor may use the current temperature of the environment served by the fresh air device as the set temperature. The set temperature may also be a target temperature set by the user through a remote controller, a mobile phone APP, or the like. Alternatively, the set temperature may be the temperature of the environment served by the fresh air device, i.e., the indoor temperature. The present embodiment will be described by taking the set temperature as the indoor temperature as an example.
During specific implementation, at least one temperature sensor can be arranged at the inlet of the fresh air channel and in the indoor environment, and the temperature sensor is connected with the core controller; the indoor environment refers to the environment in a room served by the fresh air equipment. The temperature sensor can feed back a detection signal to the core controller in real time or intermittently, and the detection signal is used for representing the temperature of the environment where the temperature sensor is located. The core controller analyzes the detection signal after receiving the detection signal, and can obtain the fresh air temperature and the indoor temperature.
It is understood that the fresh air temperature refers to the temperature of the air in the external environment drawn by the fresh air channel. Therefore, a temperature sensor can be arranged in the external environment to acquire the temperature of fresh air. Alternatively, the core controller may also communicate with a weather database to obtain weather data such as the temperature of the area from the weather database, thereby obtaining the fresh air temperature. Of course, the fresh air temperature and the set temperature may be obtained in other manners, which is not limited in this embodiment.
Step S20: and comparing the fresh air temperature with a preset temperature threshold value and a set temperature respectively to obtain a first comparison result.
It can be understood that the fresh air equipment can adjust the indoor temperature, thereby meeting the requirement of the user on temperature adjustment. For example, when a user needs to cool the indoor space by using fresh air, the fresh air equipment can be controlled to operate in a refrigeration mode; or when the user needs to utilize the fresh air to heat the indoor space, the fresh air equipment can be controlled to operate in a heating mode.
It should be noted that, because the fresh air is obtained from the external environment, the fresh air itself has a certain temperature. If the external environment and the external environment are in a smooth state, the temperature of the fresh air is basically the same as the indoor temperature. Therefore, when the temperature of the fresh air is adjusted indoors by using the fresh air, the temperature of the fresh air is required to be considered, and the fresh air is conveyed to the indoor environment after being adjusted to a certain degree,
during specific implementation, the temperature adjusting degree of the fresh air equipment for the fresh air can be determined according to the difference value between the temperature of the fresh air and the indoor temperature; the greater the difference, the greater the degree of temperature adjustment required. For example, if the temperature of the fresh air is higher than the indoor temperature in the cooling mode, the fresh air needs to be cooled first, and then the cooled fresh air is conveyed indoors.
It should be noted that the preset temperature threshold is mainly used for determining the difference between the fresh air temperature and the set temperature. For example, the preset temperature threshold may be much greater than the set temperature, and if the fresh air temperature is greater than the preset temperature threshold, it indicates that the fresh air temperature is much greater than the set temperature; or, the preset temperature threshold may be further much lower than the set temperature, and if the fresh air temperature is lower than the preset temperature threshold, it indicates that the fresh air temperature is much lower than the set temperature.
Step S30: and controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result.
It should be noted that the fresh air device is provided with a two-stage heat exchange system. Wherein, the second heat exchange system can realize heat recovery, and its energy consumption is higher. Therefore, in order to reduce energy consumption, the two-stage heat exchange system can be subjected to coupling control, and the energy efficiency can be effectively improved by adjusting the heat exchange capacity of the two-stage heat exchange system according to the temperature adjustment degree required by fresh air time due to different heat exchange capacities of the two-stage heat exchange system.
In specific implementation, if the first comparison result is that the difference between the fresh air temperature and the set temperature is large, it indicates that the fresh air equipment needs to operate at a high power. In order to reduce energy consumption, the second heat exchange system can be started preferentially so as to improve the energy efficiency of the fresh air equipment. In addition, when the second heat exchange system is started, the first heat exchange system can be started for auxiliary adjustment, so that the temperature of fresh air can be adjusted better.
It should be noted that the operation states of the first heat exchange system and/or the second heat exchange system include an on state and an off state (i.e., a switch state), where the on state includes a cooling operation and a heating operation. After the heat exchange system enters a closed state, the compressor stops running; at the moment, in order to ensure normal air supply, the second fan in the fresh air channel and the third fan in the air exhaust channel can still operate.
It should be noted that the fresh air device control method provided in this embodiment may be executed when the fresh air device is started and operated, that is, when the fresh air device receives a start instruction, the on-off states of the first heat exchange system and the second heat exchange system are determined by the fresh air device control method, so that the fresh air device enters the operation state. Or, the fresh air device control method provided in this embodiment may be executed when the fresh air device is in operation, that is, the fresh air device executes the fresh air device control method in real time, and when it is detected that the first comparison result satisfies the control adjustment condition, the on-off states of the first heat exchange system and the second heat exchange system are switched. For example, the fresh air equipment runs in a state that the first heat exchange system and the second heat exchange system are both opened, and when the core controller detects that the fresh air temperature is smaller than the set temperature, the second heat exchange system can be closed, and only the first heat exchange system is opened to run.
In a first embodiment, the fresh air device has a two-stage heat exchange system, wherein the first heat exchange system is used for realizing heat exchange between the fresh air channel and the external environment; the second heat exchange system is used for realizing heat exchange between the fresh air channel and the exhaust channel; the fresh air temperature of the fresh air introduced by the fresh air equipment and the set temperature of a room served by the fresh air equipment are detected, the heat exchange capacity required to be provided by the fresh air equipment is determined, and the running state of the two-stage heat exchange system is determined according to the heat exchange capacity required to be provided, so that the fresh air equipment runs in a high energy efficiency state, and the energy consumption of the fresh air equipment is reduced.
Referring to fig. 4, fig. 4 is a flowchart illustrating a control method for a fresh air device according to a second embodiment of the present invention. Based on the first embodiment, the invention provides a second embodiment of a fresh air device control method.
In the second embodiment, the fresh air device is described as being in a cooling mode, that is, the first heat exchange system and/or the second heat exchange system is in a cooling mode (or cooling operation). When the first heat exchange system enters a refrigeration mode, the refrigerant in the first heat exchange system sequentially flows through the first compressor, the first four-way valve, the first heat exchanger, the first throttling element and the second heat exchanger and then flows back to the first compressor, so that the temperature of the fresh air in the fresh air channel is reduced and/or the fresh air is dehumidified. When the second heat exchange system enters a refrigeration mode, the refrigerant in the second heat exchange system flows through the second compressor, the second four-way valve, the third heat exchanger, the second throttling element and the fourth heat exchanger in sequence and then flows back to the second compressor, so that the temperature of the fresh air in the fresh air channel is reduced and/or the fresh air is dehumidified.
In this embodiment, the preset temperature threshold includes a first temperature threshold, and the first temperature threshold is greater than the set temperature. At this time, step S30 may include:
step S301: and when the first comparison result shows that the fresh air temperature is greater than or equal to the first temperature threshold value, controlling the second heat exchange system to perform refrigeration operation.
It can be understood that when the fresh air equipment is in the refrigeration mode, the normal temperature of the indoor and outdoor environment is often higher; the normal temperature is a temperature at which air is in a natural state. And as the refrigeration process needs to release heat to the outside, the heat release is more difficult when the temperature of the heat release environment is higher, and the heat exchange system also needs higher power.
It should be noted that when the fresh air device needs the refrigeration mode, the temperature of the fresh air is often greater than the set temperature; and the higher the fresh air temperature is, the higher the cooling degree of the fresh air temperature is, and the higher power is needed. The temperature can be divided into three sections by using the first temperature threshold and the set temperature, namely, the temperature is greater than or equal to the first temperature threshold, is less than the first temperature threshold, is greater than or equal to the set temperature and is less than the set temperature. And judging the temperature interval of the fresh air temperature, and determining the cooling degree of the fresh air temperature required by the fresh air equipment. Specifically, the value range of the first temperature threshold may be 10 to 50 ℃.
In this embodiment, the heat release environment of the first heat exchange system is outdoor, and the heat release environment of the second heat exchange system is an exhaust channel. Because the inlet air of the exhaust channel is the indoor environment, after the indoor environment is refrigerated, the exhaust channel is lower in temperature compared with the external environment, and heat release is easier, so that the second heat exchange system has higher energy efficiency compared with the first heat exchange system. For example, if the external environment is 30 ℃, the temperature in the exhaust duct may be 25 ℃. Therefore, when the temperature reduction degree of the fresh air temperature required by the fresh air equipment is higher, the second heat exchange system is controlled to be in refrigerating operation, so that the fresh air equipment has higher energy efficiency. Of course, the first heat exchange system can be started while the second heat exchange system is started, so that the first heat exchange system is in refrigeration operation; or the first heat exchange system is closed. At the moment, the power of the first heat exchange system is smaller than that of the second heat exchange system, so that the fresh air is cooled in an auxiliary mode, and the load of the second heat exchange system is reduced.
In addition, in the present embodiment, step S30 may further include:
step S302: and when the first comparison result shows that the fresh air temperature is less than a first temperature threshold value and the fresh air temperature is greater than or equal to a set temperature, controlling the first heat exchange system to perform refrigeration operation.
It can be understood that when the fresh air temperature is less than the first temperature threshold value and is greater than or equal to the set temperature, the required temperature reduction degree of the fresh air temperature by the required fresh air equipment is not high. At the moment, the first heat exchange system has better temperature regulation capacity, so that the temperature of fresh air can be quickly and stably reduced, and the first heat exchange system can be controlled to be in refrigerating operation. Certainly, when the first heat exchange system is started, the second heat exchange system can be started to enable the second heat exchange system to run in a refrigerating mode; or the second heat exchange system is closed. At the moment, the power of the second heat exchange system is smaller than that of the first heat exchange system, so that the fresh air is cooled in an auxiliary mode, and the load of the first heat exchange system is reduced.
In addition, in the present embodiment, step S30 may further include:
step S303: and when the first comparison result shows that the fresh air temperature is lower than the set temperature, controlling the first heat exchange system and the second heat exchange system to be in a closed state.
It can be understood that when the temperature of the fresh air is less than the set temperature, the fresh air can be directly conveyed to the indoor environment to be cooled. At the moment, the first heat exchange system and the second heat exchange system are closed, and the energy consumption of the fresh air equipment can be reduced.
It should be noted that, in order to ensure normal air supply, after the first heat exchange system and the second heat exchange system are both closed, the fresh air fan in the fresh air channel and the exhaust air fan in the exhaust air channel are still in an operating state.
In a second embodiment, the temperature interval where the fresh air temperature is located is judged by setting a first temperature threshold value which is larger than the set temperature, and the running states of the first heat exchange system and the second heat exchange system in the refrigeration mode are controlled, so that the energy consumption of the fresh air equipment is reduced under the condition of ensuring the supply of fresh air and the refrigeration capacity.
Referring to fig. 5, fig. 5 is a flowchart illustrating a control method for a fresh air device according to a third embodiment of the present invention. Based on the first embodiment and the second embodiment, the invention provides a third embodiment of a fresh air device control method.
In the third embodiment, the fresh air device is described as being in a heating mode, that is, the first heat exchange system and/or the second heat exchange system is in a heating mode (or heating operation). When the first heat exchange system enters a heating mode, the refrigerant in the first heat exchange system flows through the first compressor, the first four-way valve, the second heat exchanger, the first throttling element and the first heat exchanger in sequence and then flows back to the first compressor, so that the temperature of the fresh air in the fresh air channel is raised. When the second heat exchange system enters a heating mode, the refrigerant in the second heat exchange system flows through the second compressor, the second four-way valve, the fourth heat exchanger, the second throttling element and the third heat exchanger in sequence and then flows back to the second compressor, so that the temperature of the fresh air in the fresh air channel is raised.
In this embodiment, the preset temperature threshold includes a second temperature threshold, and the second temperature threshold is smaller than the set temperature. At this time, step S30 may include:
step S304: and when the first comparison result shows that the fresh air temperature is less than or equal to the second temperature threshold value, controlling the second heat exchange system to perform heating operation.
It can be understood that when the fresh air device is in the heating mode, the normal temperature of the indoor and outdoor environment is often lower; the normal temperature is a temperature at which air is in a natural state. Since the heating process needs to absorb heat from the outside, the lower the temperature of the heat absorption environment is, the more difficult the heat absorption is, and the higher the power is required by the heat exchange system.
It should be noted that when the fresh air device needs a heating mode, the temperature of the fresh air is often lower than a set temperature; and the higher the fresh air temperature is, the higher the cooling degree of the fresh air temperature is, and the higher power is needed. The temperature can be divided into three sections by using the second temperature threshold and the set temperature, namely, the temperature is greater than or less than the second temperature threshold, greater than the first temperature threshold, less than or equal to the set temperature and greater than the set temperature. And judging the temperature interval of the fresh air temperature, and determining the cooling degree of the fresh air temperature required by the fresh air equipment. Specifically, the value range of the first temperature threshold may be-30 to 10 ℃.
In this embodiment, the heat absorption environment of the first heat exchange system is outdoor, and the heat absorption environment of the second heat exchange system is an exhaust channel. Because the inlet air of the exhaust channel is an indoor environment, after the indoor environment is heated, the exhaust channel has higher temperature compared with the external environment, and the heat absorption is easier, so that the second heat exchange system has higher energy efficiency compared with the first heat exchange system. For example, if the external environment is 5 ℃, the temperature in the exhaust duct may be 15 ℃. Therefore, when the temperature rising degree of the fresh air temperature required by the fresh air equipment is higher, the second heat exchange system is controlled to heat and operate, so that the fresh air equipment has higher energy efficiency. Certainly, when the second heat exchange system is started, the first heat exchange system can be started to enable the first heat exchange system to perform heating operation; or the first heat exchange system is closed. At the moment, the power of the first heat exchange system is smaller than that of the second heat exchange system, so that the temperature of the fresh air is increased in an auxiliary mode, and the load of the second heat exchange system is reduced.
In addition, in the present embodiment, step S30 may further include:
step S305: and when the first comparison result shows that the fresh air temperature is greater than the second temperature threshold value and the fresh air temperature is less than or equal to the set temperature, controlling the first heat exchange system to be in heating operation.
It can be understood that when the temperature of the fresh air is greater than the second temperature threshold and less than or equal to the set temperature, the temperature rise degree of the fresh air temperature required by the required fresh air equipment is not high. At the moment, the first heat exchange system has better temperature regulation capacity, so that the temperature of the fresh air is quickly and stably increased, and the heating operation of the first heat exchange system can be controlled. Certainly, when the first heat exchange system is started, the second heat exchange system can be started to enable the second heat exchange system to perform heating operation; or the second heat exchange system is closed. At the moment, the power of the second heat exchange system is smaller than that of the first heat exchange system, so that the temperature of the fresh air is increased in an auxiliary mode, and the load of the first heat exchange system is reduced.
In addition, in the present embodiment, step S30 may further include:
step S306: and when the first comparison result shows that the fresh air temperature is higher than the set temperature, controlling the first heat exchange system and the second heat exchange system to be in a closed state.
It should be noted that, in order to ensure normal air supply, after the first heat exchange system and the second heat exchange system are both closed, the fresh air fan in the fresh air channel and the exhaust air fan in the exhaust air channel are still in an operating state.
It can be understood that when the temperature of the fresh air is higher than the set temperature, the fresh air can be directly conveyed to the indoor environment to be heated. At the moment, the energy consumption of the fresh air equipment can be reduced by closing the first heat exchange system and the second heat exchange system.
In the second embodiment, the temperature interval of the fresh air temperature is judged by setting a second temperature threshold smaller than the set temperature, and the operating states of the first heat exchange system and the second heat exchange system in the heating mode are controlled, so that the energy consumption of the fresh air equipment is reduced under the condition of ensuring the supply of fresh air and the heating capacity.
Referring to fig. 6, fig. 6 is a schematic flow chart of a control method for a fresh air device according to a fourth embodiment of the present invention. Based on the first, second, and third embodiments, the present invention provides a fourth embodiment of a fresh air device control method.
In the fourth embodiment, to complete the adjustment of the set temperature, after the start state of the first heat exchange system and/or the second heat exchange system is determined, the operation parameters of the first heat exchange system and/or the second heat exchange system also need to be adjusted according to the real-time change condition of the set temperature, so as to further improve the energy efficiency of the fresh air device.
In a specific implementation, after step S30, the method may further include:
step S40: and acquiring the air outlet temperature of the fresh air equipment.
It should be noted that when the outlet air temperature is higher than the set temperature, the indoor environment can be heated; when the air outlet temperature is lower than the set temperature, the indoor environment can be cooled. Therefore, the temperature change trend of the indoor environment can be judged by detecting the air outlet temperature.
During specific implementation, at least one temperature sensor can be arranged at the outlet of the fresh air channel and connected with the core controller. The temperature sensor can feed back a detection signal to the core controller in real time or intermittently, and the detection signal is used for representing the temperature of the environment where the temperature sensor is located. The core controller analyzes the detection signal after receiving the detection signal, and the air outlet temperature can be obtained.
It should be noted that, if the fresh air device is further provided with other devices, such as a humidifying device, at the rear end of the fresh air channel, the temperature sensor may be arranged at the rear end of the device to detect the temperature of the air delivered to the room, so as to obtain the outlet air temperature.
Step S50: and comparing the set temperature with the indoor temperature threshold, and comparing the air outlet temperature with the air outlet temperature threshold to obtain a second comparison result.
It should be noted that the indoor temperature threshold may be a temperature set by a user or a reference temperature calculated by the core controller according to an internal program. When the fresh air equipment is in a refrigeration mode, the value range of the indoor temperature threshold value can be 15-32 ℃; when the fresh air equipment is in a heating mode, the value range of the indoor temperature threshold value can be 12-32 ℃.
It should be noted that the outlet air temperature threshold may be a reference temperature calculated by the core controller according to an internal program. When the fresh air equipment is in a refrigeration mode, the value range of the air outlet temperature threshold value can be 5-30 ℃; at this time, if the outlet air temperature is less than the outlet air temperature threshold, it indicates that the set temperature will decrease at a faster rate. When the fresh air equipment is in a heating mode, the value range of the air outlet temperature threshold value can be 15-60 ℃, and at the moment, if the air outlet temperature is greater than the air outlet temperature threshold value, the set temperature is increased at a higher speed.
Step S60: and adjusting the heat exchange capacity of the first heat exchange system and/or the second heat exchange system according to the second comparison result.
In this embodiment, for improving new trend equipment to setting for the temperature regulation effect, make user experience more comfortable, through judging setting for temperature and air-out temperature, adjust new trend equipment's heat transfer ability. The heat exchange capacity refers to the refrigerating capacity or the heating capacity provided by the heat exchange system; the regulation of the heat exchange capacity is mainly realized by regulating the rotating speed of a compressor in the fresh air equipment, the opening of a throttling element and the rotating speed of each fan. And if the compressor is a constant-speed compressor, the refrigerating capacity or the heating capacity can be adjusted by controlling the starting and stopping of the constant-speed compressor. Similarly, each fan can also adopt start-stop control.
During specific implementation, if the fresh air equipment is in a refrigeration mode, the set temperature is smaller than the indoor temperature threshold, and the outlet air temperature is smaller than the outlet air temperature threshold, the set temperature is lower, and the refrigerating capacity is sufficient. At the moment, the rotating speed of a compressor of the first heat exchange system and/or the second heat exchange system can be reduced, or the opening degree of the throttling element is increased, or the rotating speed of a fan in the fresh air channel is reduced. On the contrary, if the set temperature is greater than the indoor temperature threshold value and the outlet air temperature is greater than the outlet air temperature threshold value, the set temperature is higher and the refrigerating capacity is insufficient, and at the moment, the rotating speed of the compressor of the first heat exchange system and/or the second heat exchange system can be increased or the opening degree of the throttling element can be reduced or the rotating speed of the fan in the fresh air channel can be increased.
Similarly, when the fresh air device is in the heating mode, corresponding adjustment can be performed. For example, if the set temperature is greater than the indoor temperature threshold and the outlet air temperature is greater than the outlet air temperature threshold, it indicates that the set temperature is too high and the heating capacity is sufficient. At the moment, the rotating speed of the compressor of the first heat exchange system and/or the second heat exchange system can be reduced or the opening degree of the throttling element can be increased, or the rotating speed of the fan in the fresh air channel can be reduced. If the set temperature is lower than the indoor temperature threshold and the outlet air temperature is lower than the outlet air temperature threshold, the set temperature is lower and the heating capacity is insufficient. At the moment, the rotating speed of the compressor of the first heat exchange system and/or the second heat exchange system can be increased or the opening degree of the throttling element can be reduced, or the rotating speed of the fan in the fresh air channel can be increased.
It should be noted that, if the first heat exchange system and the second heat exchange system are simultaneously in the on state, the two heat exchange systems can be adjusted simultaneously. Meanwhile, the energy-saving problem is considered, and adjustment of different degrees can be respectively carried out according to the power of the two heat exchange systems. For example, when the power of the second heat exchange system is greater than that of the first heat exchange system, if the cooling capacity is sufficient, the cooling capacities provided by the first heat exchange system and the second heat exchange system are reduced at the same time, wherein the reduction amplitude of the second heat exchange system is greater than that of the first heat exchange system.
It can be understood that, in the state where the set temperature is less than the indoor temperature threshold and the outlet air temperature is greater than the outlet air temperature threshold, and in the state where the set temperature is greater than the indoor temperature threshold and the outlet air temperature is less than the outlet air temperature threshold, the operating parameters of each component in the first heat exchange system and/or the second heat exchange system may also be adjusted according to the working mode (cooling mode or heating mode) in which the fresh air equipment is located, and the specific control mode may be set as needed, which is not limited in this embodiment.
In this embodiment, through judging set temperature and air-out temperature to adjust first heat transfer system and/or second heat transfer system's refrigerating output or heating capacity according to new trend equipment's mode of operation, thereby make set temperature be in more comfortable interval, improved user experience.
In addition, an embodiment of the present invention further provides a storage medium, where a fresh air device control program is stored on the storage medium, and the steps of the fresh air device control method described above are implemented when the fresh air device control program is executed by a processor. Since the storage medium may adopt the technical solutions of all the embodiments, at least the beneficial effects brought by the technical solutions of the embodiments are achieved, and are not described in detail herein.
Referring to fig. 7, fig. 7 is a block diagram of a control device of a fresh air device according to an embodiment of the present invention. The embodiment of the invention also provides a control device of the fresh air equipment.
In this embodiment, new trend equipment controlling means is used for controlling new trend equipment, and the concrete structure of this new trend equipment can refer to the aforesaid, and new trend equipment controlling means includes:
and the detection module 100 is used for acquiring the fresh air temperature and the set temperature of the fresh air equipment.
The fresh air temperature refers to the temperature of air extracted by the fresh air device from the external environment. The set temperature may be a temperature required to be reached by an environment served by the fresh air device, and may be determined by the detection module 100 according to a preset program, for example, the detection module 100 may determine the corresponding set temperature according to a current season, time, and the like. Alternatively, the set temperature may be the temperature of the environment served by the fresh air device, i.e., the indoor temperature. The present embodiment will be described by taking the set temperature as the indoor temperature as an example.
In specific implementation, at least one temperature sensor can be arranged at the inlet of the fresh air channel and in the indoor environment, and the temperature sensor is connected with the detection module 100; the indoor environment refers to the environment in a room served by the fresh air equipment. The temperature sensor may feed back a detection signal to the detection module 100 in real time or intermittently, and the detection signal is used for representing the temperature of the environment in which the temperature sensor is located. The detection module 100 receives the detection signal and analyzes the detection signal to obtain the fresh air temperature and the set temperature.
It is understood that the fresh air temperature refers to the temperature of the air in the external environment drawn by the fresh air channel. Therefore, a temperature sensor can be arranged in the external environment to acquire the temperature of fresh air. Alternatively, the detection module 100 may also communicate with a weather database to obtain weather data such as the temperature of the area from the weather database, so as to obtain the fresh air temperature. Of course, the fresh air temperature and the set temperature may be obtained in other manners, which is not limited in this embodiment.
The comparison module 200 is configured to compare the fresh air temperature with a preset temperature threshold and a set temperature respectively, and obtain a first comparison result.
It can be understood that the new trend equipment can be adjusted the settlement temperature to satisfy the user and adjust the demand to the temperature. For example, when a user needs to cool the indoor space by using fresh air, the fresh air equipment can be controlled to operate in a refrigeration mode; or when the user needs to utilize the fresh air to heat the indoor space, the fresh air equipment can be controlled to operate in a heating mode.
It should be noted that, because the fresh air is obtained from the external environment, the fresh air itself has a certain temperature. If the external environment and the external environment are in a smooth state, the temperature of the fresh air is basically the same as the indoor temperature. Therefore, when the temperature of the fresh air is adjusted indoors by using the fresh air, the temperature of the fresh air is required to be considered, and the fresh air is conveyed to the indoor environment after being adjusted to a certain degree,
during specific implementation, the temperature adjusting degree of the fresh air equipment for the fresh air can be determined according to the difference value between the temperature of the fresh air and the set temperature; the greater the difference, the greater the degree of temperature adjustment required. For example, if the temperature of the fresh air is higher than the set temperature in the cooling mode, the fresh air needs to be cooled first, and then the cooled fresh air needs to be conveyed indoors.
It should be noted that the preset temperature threshold is mainly used for determining the difference between the fresh air temperature and the set temperature. For example, the preset temperature threshold may be much greater than the set temperature, and if the fresh air temperature is greater than the preset temperature threshold, it indicates that the fresh air temperature is much greater than the set temperature; or, the preset temperature threshold may be further much lower than the set temperature, and if the fresh air temperature is lower than the preset temperature threshold, it indicates that the fresh air temperature is much lower than the set temperature.
And the driving module 300 is configured to control the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result.
It should be noted that the fresh air device is provided with a two-stage heat exchange system. Wherein, the second heat exchange system can realize heat recovery, and its energy consumption is higher. Therefore, in order to reduce energy consumption, the two-stage heat exchange system can be subjected to coupling control, and the energy efficiency can be effectively improved by adjusting the heat exchange capacity of the two-stage heat exchange system according to the temperature adjustment degree required by fresh air time due to different heat exchange capacities of the two-stage heat exchange system.
In specific implementation, if the first comparison result is that the difference between the fresh air temperature and the set temperature is large, it indicates that the fresh air equipment needs to operate at a high power. In order to reduce energy consumption, the second heat exchange system can be started preferentially so as to improve the energy efficiency of the fresh air equipment. In addition, when the second heat exchange system is started, the first heat exchange system can be started for auxiliary adjustment, so that the temperature of fresh air can be adjusted better.
It should be noted that the fresh air device control method provided in this embodiment may be executed when the fresh air device is started to operate, that is, when the fresh air device receives a start instruction, the fresh air device control device controls the on/off states of the first heat exchange system and the second heat exchange system, so that the fresh air device enters an operating state. Alternatively, the fresh air device control method provided in this embodiment may be executed when the fresh air device is in operation, that is, when the driving module 300 detects that the first comparison result meets the control adjustment condition, the on-off states of the first heat exchange system and the second heat exchange system are switched. For example, the fresh air device operates in a state where both the first heat exchange system and the second heat exchange system are turned on, and the driving module 300 may turn off the second heat exchange system and turn on only the first heat exchange system to operate when the fresh air temperature is smaller than the set temperature.
In this embodiment, the fresh air device has two stages of heat exchange systems, wherein the first heat exchange system is used for realizing heat exchange between the fresh air channel and the external environment; the second heat exchange system is used for realizing heat exchange between the fresh air channel and the exhaust channel; the detection module 100 detects the fresh air temperature of the fresh air introduced by the fresh air equipment and the set temperature of the room served by the fresh air equipment, the comparison module 200 determines the heat exchange capacity required by the fresh air equipment, and the driving module 300 determines the operation state of the two-stage heat exchange system according to the heat exchange capacity required to be provided, so that the fresh air equipment operates in a high energy efficiency state, and the energy consumption of the fresh air equipment is reduced.
In an embodiment, the preset temperature threshold includes a first temperature threshold, where the first temperature threshold is greater than the set temperature, and the driving module 300 may be further configured to control the second heat exchange system to perform cooling operation when the fresh air device is in the cooling mode and the first comparison result is that the fresh air temperature is greater than or equal to the first temperature threshold.
In an embodiment, the driving module 300 may be further configured to control the first heat exchanging system to perform a cooling operation when the fresh air device is in the cooling mode, and the first comparison result is that the fresh air temperature is smaller than the first temperature threshold, and the fresh air temperature is greater than or equal to the set temperature.
In an embodiment, the driving module 300 may be further configured to control both the first heat exchange system and the second heat exchange system to be in a closed state when the fresh air device is in the cooling mode and the first comparison result is that the fresh air temperature is lower than the set temperature.
In an embodiment, the preset temperature threshold includes a second temperature threshold, the second temperature threshold is smaller than the set temperature, and the driving module 300 may further control the second heat exchange system to perform heating operation when the fresh air device is in the heating mode and the first comparison result indicates that the fresh air temperature is smaller than or equal to the second temperature threshold.
In an embodiment, the driving module 300 may be further configured to control the first heat exchanging system to perform heating operation when the fresh air device is in the heating mode, and the first comparison result is that the fresh air temperature is greater than the second temperature threshold, and the fresh air temperature is less than or equal to the set temperature.
In an embodiment, the driving module 300 may be further configured to control both the first heat exchange system and the second heat exchange system to be in a closed state when the fresh air device is in the heating mode and the first comparison result indicates that the fresh air temperature is greater than the set temperature.
In an embodiment, the driving module 300 may further obtain an air outlet temperature of the fresh air device; comparing the set temperature with an indoor temperature threshold, and comparing the outlet air temperature with an outlet air temperature threshold to obtain a second comparison result; and adjusting the heat exchange capacity of the first heat exchange system and/or the second heat exchange system according to the second comparison result.
Other embodiments or specific implementation manners of the fresh air equipment control device according to the present invention may refer to the above method embodiments, so that at least all the advantages brought by the technical solutions of the above embodiments are provided, and no further description is provided herein.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words first, second, third, etc. are to be interpreted as names.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g., a Read Only Memory (ROM)/Random Access Memory (RAM), a magnetic disk, an optical disk), and includes several instructions for enabling a terminal device (which may be a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (13)

1. A fresh air equipment control method is characterized in that fresh air equipment comprises a first heat exchange system and a second heat exchange system, wherein the first heat exchange system is used for exchanging heat between a fresh air channel and the external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an air exhaust channel;
the fresh air equipment control method comprises the following steps:
acquiring the fresh air temperature and the set temperature of the fresh air equipment;
comparing the fresh air temperature with a preset temperature threshold value and the set temperature respectively to obtain a first comparison result; and the number of the first and second groups,
and controlling the running state of the first heat exchange system and/or the second heat exchange system according to the first comparison result.
2. The fresh air device control method according to claim 1, wherein the preset temperature threshold includes a first temperature threshold, the first temperature threshold is greater than the set temperature, and the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result includes:
and when the fresh air equipment is in a refrigeration mode and the first comparison result shows that the fresh air temperature is greater than or equal to the first temperature threshold value, controlling the second heat exchange system to perform refrigeration operation.
3. The fresh air device control method according to claim 2, wherein the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result further comprises:
the fresh air equipment is in a refrigeration mode, the first comparison result is that the fresh air temperature is smaller than the first temperature threshold value, and when the fresh air temperature is larger than or equal to the set temperature, the first heat exchange system is controlled to perform refrigeration operation.
4. The fresh air device control method according to claim 2, wherein the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result further comprises:
when the fresh air equipment is in a refrigeration mode and the first comparison result shows that the fresh air temperature is lower than the set temperature, the first heat exchange system and the second heat exchange system are controlled to be in a closed state.
5. The fresh air device control method according to claim 1, wherein the preset temperature threshold includes a second temperature threshold, the second temperature threshold is smaller than the set temperature, and the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result includes:
and when the fresh air equipment is in a heating mode and the first comparison result is that the fresh air temperature is less than or equal to the second temperature threshold value, controlling the second heat exchange system to perform heating operation.
6. The fresh air device control method according to claim 5, wherein the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result further comprises:
the fresh air equipment is in a heating mode, the first comparison result is that the fresh air temperature is greater than the second temperature threshold, and the fresh air temperature is less than or equal to the set temperature, the first heat exchange system is controlled to perform heating operation.
7. The fresh air device control method according to claim 5, wherein the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result further comprises:
the fresh air equipment is in a heating mode, and the first comparison result is that the fresh air temperature is greater than the set temperature, the first heat exchange system and the second heat exchange system are controlled to be in a closed state.
8. The fresh air device control method according to any one of claims 1 to 7, wherein after controlling the operating state of the first heat exchange system and/or the second heat exchange system according to the first comparison result, the method further comprises:
acquiring the air outlet temperature of the fresh air equipment;
comparing the set temperature with an indoor temperature threshold value, and comparing the air outlet temperature with an air outlet temperature threshold value to obtain a second comparison result; and the number of the first and second groups,
and adjusting the heat exchange capacity of the fresh air equipment according to the second comparison result.
9. The method for controlling the fresh air device according to claim 8, wherein the adjusting the heat exchange capacity of the fresh air device according to the second comparison result includes:
determining the adjusting direction of the fresh air equipment according to the second comparison result;
when the adjusting direction is to improve the heat exchange capacity, at least one operation of improving the rotating speed of a target compressor, reducing the opening of a target throttling element and improving the rotating speed of a fresh air fan is executed; and the number of the first and second groups,
when the adjusting direction is to reduce the heat exchange capacity, at least one operation of reducing the rotating speed of the target compressor, increasing the opening of the target throttling element and reducing the rotating speed of the fresh air fan is executed; the target compressor is a compressor in the first heat exchange system and/or the second heat exchange system, the target throttling element is a compressor in the first heat exchange system and/or the second heat exchange system, and the fresh air fan is a fan in the fresh air channel.
10. A fresh air equipment control device is characterized in that fresh air equipment comprises a first heat exchange system and a second heat exchange system, wherein the first heat exchange system is used for exchanging heat between a fresh air channel and the external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an air exhaust channel;
fresh air equipment controlling means includes:
the detection module is used for acquiring the fresh air temperature and the set temperature of the fresh air equipment;
the comparison module is used for comparing the fresh air temperature with a preset temperature threshold and the set temperature respectively to obtain a first comparison result; and the number of the first and second groups,
and the driving module is used for controlling the running state of the first heat exchange system and/or the second heat exchange system according to the first comparison result.
11. The utility model provides a new trend equipment, its characterized in that, new trend equipment includes: the fresh air equipment control method comprises a first heat exchange system, a second heat exchange system, fresh air equipment, a storage device, a processor and a fresh air equipment control program which is stored on the storage device and can run on the processor, wherein the first heat exchange system is used for exchanging heat between a fresh air channel and the external environment, the second heat exchange system is used for exchanging heat between the fresh air channel and an exhaust air channel, and the fresh air equipment control program is executed by the processor to realize the fresh air equipment control method according to any one of claims 1 to 9.
12. The fresh air device as claimed in claim 11, wherein the fresh air device has a fresh air channel and an exhaust air channel, and the first heat exchange system comprises a first compressor, a first four-way valve, a first heat exchanger, a first throttling element and a second heat exchanger which are connected in sequence; the second heat exchange system comprises a second compressor, a second four-way valve, a third heat exchanger, a second throttling element and a fourth heat exchanger which are connected in sequence; wherein,
the first heat exchanger is arranged in the external environment;
the second heat exchanger, the fourth heat exchanger and the fresh air fan are sequentially arranged in the fresh air channel from the outdoor direction to the indoor direction; and the number of the first and second groups,
and the third heat exchanger and the exhaust fan are arranged in the exhaust channel.
13. A storage medium, wherein a fresh air device control program is stored on the storage medium, and when executed by a processor, the fresh air device control program implements the fresh air device control method according to any one of claims 1 to 9.
CN202111416656.8A 2021-11-24 2021-11-24 Fresh air equipment control method and device, fresh air equipment and storage medium Active CN114110980B (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673107A (en) * 2013-12-13 2014-03-26 Tcl空调器(中山)有限公司 Air conditioner and control method and device thereof
CN106546028A (en) * 2016-09-29 2017-03-29 同济大学 A kind of frost-free type cold-producing medium Two-way Cycle fresh air handining unit
DE102018213274A1 (en) * 2018-08-08 2020-02-13 Hansa Klimasysteme GmbH air conditioning
CN113137671A (en) * 2021-04-13 2021-07-20 青岛海尔空调电子有限公司 Air conditioning system with heat recovery function

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103673107A (en) * 2013-12-13 2014-03-26 Tcl空调器(中山)有限公司 Air conditioner and control method and device thereof
CN106546028A (en) * 2016-09-29 2017-03-29 同济大学 A kind of frost-free type cold-producing medium Two-way Cycle fresh air handining unit
DE102018213274A1 (en) * 2018-08-08 2020-02-13 Hansa Klimasysteme GmbH air conditioning
CN113137671A (en) * 2021-04-13 2021-07-20 青岛海尔空调电子有限公司 Air conditioning system with heat recovery function

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