CN114110980B - 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
CN114110980B
CN114110980B CN202111416656.8A CN202111416656A CN114110980B CN 114110980 B CN114110980 B CN 114110980B CN 202111416656 A CN202111416656 A CN 202111416656A CN 114110980 B CN114110980 B CN 114110980B
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Prior art keywords
fresh air
heat exchange
exchange system
temperature
air equipment
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CN114110980A (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, a fresh air equipment control 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 a fresh air temperature and a set temperature of fresh air equipment; the fresh air temperature is respectively compared with a preset temperature threshold value and a set temperature, and a first comparison result is obtained; and controlling the running 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 then 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 can run 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 treatment 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 hot environments are not only cold and hot, but also rise to the health requirements, and higher requirements are put on freshness and cleanliness, so that fresh air is increasingly applied as an effective and important solution. At present, most fresh air equipment is newly added with heat and humidity treatment of fresh air on the basis of original indoor heat and humidity environment treatment, and the rise of energy consumption is brought.
Disclosure of Invention
The invention mainly aims to provide a fresh air equipment control method and device, fresh air equipment and a storage medium, and aims to solve the technical problem of high energy consumption of the fresh air equipment in the prior art.
In order to achieve the above object, the present invention provides a method for controlling a fresh air device, which is applied to a fresh air device, the fresh air device includes 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 an external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an exhaust channel;
the fresh air equipment control method comprises the following steps:
acquiring a fresh air temperature and a set temperature of fresh air equipment;
the fresh air temperature is respectively compared with a preset temperature threshold value and a set temperature, and a first comparison result is obtained; the method comprises the steps of,
And controlling the running 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, where the first temperature threshold is greater than a 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:
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, the second heat exchange system is controlled to be in refrigeration operation.
Optionally, controlling the operation 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, the first comparison result is that the fresh air temperature is smaller than a first temperature threshold value, and the fresh air temperature is larger than or equal to a set temperature, the refrigeration operation of the first heat exchange system is controlled.
Optionally, controlling the operation 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 the set temperature as a first comparison result, the first heat exchange system and the second heat exchange system are controlled to be in a closed state.
Optionally, the preset temperature threshold includes a second temperature threshold, where 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:
when the fresh air equipment is in a heating mode and the first comparison result is that the fresh air temperature is smaller than or equal to the second temperature threshold value, the second heat exchange system is controlled to be in heating operation.
Optionally, controlling the operation 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 first comparison result is that the fresh air temperature is larger than the second temperature threshold value, and the fresh air temperature is smaller than or equal to the set temperature, the first heat exchange system is controlled to be in heating operation.
Optionally, controlling the operation 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 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.
Optionally, after controlling the operation 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 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; the method comprises the steps of,
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 above 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 a fresh air channel and an external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an exhaust channel;
the fresh air equipment control device comprises:
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; the method comprises the steps of,
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 purpose, the present invention also provides a fresh air device, the fresh air device includes: the fresh air equipment control method is realized when the fresh air equipment control program is executed by the processor.
Optionally, the fresh air device is provided with a fresh air channel and an exhaust 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 sequentially connected; 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 sequentially connected; 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 outdoor to indoor;
the exhaust channel is provided with a third heat exchanger and an exhaust fan.
In addition, in order to achieve the above purpose, the present invention further provides a storage medium, on 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 as described above.
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 a fresh air channel and an external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an exhaust channel; the fresh air temperature and the set temperature are obtained; then, the fresh air temperature is respectively compared with a preset temperature threshold value and a preset temperature 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 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 higher 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 of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an embodiment of the fresh air device of the present invention;
FIG. 3 is a schematic flow chart of a first embodiment of a method for controlling fresh air equipment according to the present invention;
FIG. 4 is a schematic flow chart of a second embodiment of the method for controlling fresh air equipment according to the present invention;
FIG. 5 is a schematic flow chart of a third embodiment of a method for controlling fresh air equipment according to the present invention;
FIG. 6 is a flow chart of a fourth embodiment of a method for controlling fresh air equipment according to the present invention
Fig. 7 is a block diagram of a first embodiment of the fresh air equipment control device of the present invention.
Reference numerals illustrate:
reference numerals Name of the name Reference numerals Name of the name
1001 Processor and method for controlling the same C1～C2 First to second compressors
1002 Communication bus V1～V2 First to second four-way valve
1003 User interface H1～H4 First to fourth heat exchangers
1004 Network interface K1～K2 First to second throttle elements
1005 Memory device Y1～Y3 First to third fans
1006 First heat exchangeSystem and method for controlling a system 100 Detection module
1007 Second heat exchange system 200 Comparison module
10 Fresh air channel 300 Driving module
20 Exhaust channel
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of 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 (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 the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display (Display), and the optional user interface 1003 may also include a standard wired interface, 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 high-speed random access Memory (Random Access Memory, RAM) Memory or a stable Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above. The first heat exchange system 1006 is used for exchanging heat between the fresh air channel and the external environment, and the second heat exchange system 1007 is used for exchanging heat between the fresh air channel and the exhaust air channel.
It will be appreciated by those skilled in the art that the configuration shown in FIG. 1 is not limiting and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is considered to be a 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 to 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 equipment invokes a fresh air equipment control program stored in the memory 1005 through the processor 1001, and executes the fresh air equipment 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. To more clearly illustrate the fresh air equipment control method of the present invention, a fresh air equipment 1006 is provided, and the fresh air equipment control method is performed on the basis of the fresh air equipment 1006.
As shown in fig. 2, the fresh air device can 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. The second heat exchange system 1007 may 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 capillaries. The first compressor C1 and the second compressor C2 are two independent compressors.
In addition, the first heat exchange system and the second heat exchange system may also share a multi-cylinder compressor. Specifically, the fresh air device comprises a compressor with two independent cylinders. The first cylinder in the compressor is connected with the first four-way valve V1, the first heat exchanger H1, the first throttling element K1 and the second heat exchanger H2 to form a first heat exchange system 1006. The second cylinder in the compressor is connected with the second four-way valve V2, the third heat exchanger H3, the second throttling element K2 and the fourth heat exchanger H4 to form a second heat exchange system 1007. The refrigerants in the first heat exchange system and the second heat exchange system are mutually isolated.
The fresh air device further has a fresh air duct 10 and an exhaust duct 20, wherein the fresh air duct 10 is used for conveying air from the external environment to the indoor environment, and the exhaust duct 20 is used for conveying air from the indoor environment to the external environment. The first heat exchanger H1 in the first heat exchange 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 implement heat exchange between the fresh air channel 10 and the external environment. The third heat exchanger H3 in the second heat exchange system 1007 may be located in the exhaust air channel 20, and the fourth heat exchanger H4 may be located in the fresh air channel 10, so as to implement heat exchange between the fresh air channel 10 and the exhaust air channel 20. Correspondingly, the first heat exchange system 1006 further includes a first fan Y1 corresponding to the first heat exchanger H1, where the fan is configured to exchange heat 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 outside to inside, and the second fan Y2 is used for extracting air from the external environment into the fresh air channel 10. The exhaust channel 20 is sequentially provided with a third heat exchanger H3 and a third fan Y3 from outside to inside, and the third fan Y3 is used for extracting air from the indoor environment into the exhaust channel 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 sequentially passes through the second heat exchanger H2 and the fourth heat exchanger H4 to exchange heat twice and then is conveyed to the indoor environment. The third fan Y3 extracts exhaust air from the indoor environment, and the exhaust air is conveyed to the outside after primary heat exchange through the third heat exchanger H3. The fresh air equipment can have a refrigerating mode and a heating mode, wherein the refrigerating mode refers to that fresh air is conveyed into a room after being cooled and/or dehumidified by the second heat exchanger H2 and the fourth heat exchanger H4; the heating mode is to heat fresh air through the second heat exchanger H2 and the fourth heat exchanger H4 and then convey the fresh air into a room.
It should be noted that fresh air device 1006 may also include more or fewer components than shown, or may be combined with certain components, or may have a different arrangement of components. For example, the rear end of the fresh air channel 10 in the fresh air device may also be provided with a humidifying device. Alternatively, both the first heat exchange system 1006 and the second heat exchange system 1007 may be provided with a plurality of heat exchangers in the fresh air channel 10; the heat exchangers in each heat exchanger system are sequentially and crosswise arranged. For example, the first heat exchange system 1006 further includes a third throttling element and a fifth heat exchanger, and the second heat exchange system 1007 further includes a fourth throttling element and a sixth heat exchanger. The third throttling element is arranged between the second heat exchanger H2 and the 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 the sixth heat exchanger, and the sixth heat exchanger is connected with the second compressor. The fresh air channel 10 is sequentially 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 from outside to inside.
Based on the hardware structure, the embodiment of the fresh air equipment control method is provided.
Referring to fig. 3, fig. 3 is a schematic flow chart of a first embodiment of a method for controlling fresh air equipment according to the present invention. The invention provides a first embodiment of a fresh air equipment control method.
In the first embodiment, the fresh air equipment control method may be applied to the fresh air equipment as described above, and the fresh air equipment control method includes the steps of:
step S10: and acquiring the fresh air temperature and the set temperature of the fresh air equipment.
It should be understood that the execution main body of this embodiment is the above-mentioned fresh air device, and the fresh air device has functions of data processing, data communication, program running, and the like. In general, the operation of each component in the fresh air device may be driven by a core controller, so the execution body of this embodiment may also be the core controller in the fresh air device, where the core controller may be the processor described above, and this embodiment describes the core controller as the execution body.
It should be noted that the fresh air temperature refers to the temperature of air extracted from the external environment by the fresh air device. The set temperature can be the temperature required to be reached by the environment served by the fresh air equipment, and the set temperature can be judged by the processor according to a preset program. Specifically, the processor may determine the corresponding set temperature according to the current season, time, etc.; alternatively, the processor may also determine the 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 be a target temperature set by a user through a remote controller, a mobile phone APP, or the like. Or, 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 taking an example in which the set temperature is an indoor temperature.
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 core controller; the indoor environment refers to the environment in a room served by the fresh air equipment. The temperature sensor may feed back, in real time or intermittently, a detection signal to the core controller, the detection signal being used to characterize the temperature of the environment in which the temperature sensor is located. The core controller analyzes 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 extracted by the fresh air channel. Therefore, a temperature sensor can also be arranged in the external environment to obtain the fresh air temperature. Or, the core controller can also communicate with the weather database to obtain weather data such as the temperature of the region from the weather database, so as to obtain the fresh air temperature. Of course, other ways of obtaining the fresh air temperature and the set temperature may be adopted, which is not limited in this embodiment.
Step S20: and respectively comparing the fresh air temperature with a preset temperature threshold value and a set temperature to obtain a first comparison result.
It can be understood that the fresh air equipment can adjust indoor temperature to satisfy the user and adjust the demand to temperature. For example, when a user needs to cool the room with fresh air, the fresh air device can be controlled to operate in a cooling mode; or when the user needs to heat the room by using the fresh air, 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. And if the external environment and the external environment are in a smooth state, the fresh air temperature is basically the same as the indoor temperature. Therefore, when the temperature of the indoor air is regulated by the fresh air, the temperature of the fresh air needs to be considered, the fresh air is regulated to a certain degree on the basis, and then the fresh air is conveyed to the indoor environment,
when the method is specifically implemented, the temperature regulation degree of the fresh air equipment on the fresh air can be determined according to the difference between the fresh air temperature and the indoor temperature; the greater the difference, the greater the degree of temperature regulation required. For example, if the fresh air temperature 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 to the indoor.
It should be noted that the preset temperature threshold is mainly used for judging the difference degree 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 is indicated that the fresh air temperature is much greater than the set temperature; or the preset temperature threshold value can be far smaller than the set temperature, and if the fresh air temperature is smaller than the preset temperature threshold value, the fresh air temperature is far smaller than the set temperature.
Step S30: and controlling the running 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 configured with a two-stage heat exchange system. The second heat exchange system can realize heat recovery, and the 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, the fresh air equipment is required to operate at 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 to perform auxiliary adjustment, so that the fresh air temperature is better adjusted.
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 switching state), wherein 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 this time, in order to ensure normal air supply, the second fan in the fresh air channel and the third fan in the air exhaust air channel can still operate.
It should be noted that, the method for controlling the fresh air device according to the present embodiment may be executed when the fresh air device is started to operate, that is, when the fresh air device receives a startup instruction, the on-off states of the first heat exchange system and the second heat exchange system are determined by the method for controlling the fresh air device, so that the fresh air device enters an operating state. Or, the fresh air equipment control method provided in the embodiment may be executed during operation of the fresh air equipment, that is, the fresh air equipment executes the fresh air equipment control method in real time, and when the first comparison result is detected to meet the control and adjustment condition, the switch 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 that both the first heat exchange system and the second heat exchange system are opened, and when the core controller detects that the difference between the fresh air temperature and the set temperature is smaller, the second heat exchange system can be closed, and only the first heat exchange system is opened to operate.
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 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 then 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 higher energy efficiency state, and the energy consumption of the fresh air equipment is reduced.
Referring to fig. 4, fig. 4 is a schematic flow chart of a second embodiment of the method for controlling fresh air equipment according to the present invention. Based on the first embodiment, the present invention provides a second embodiment of a method for controlling fresh air equipment.
In a second embodiment, the fresh air device is illustrated as being in a cooling mode, i.e. the first heat exchange system and/or the second heat exchange system is in a cooling mode (or a cooling operation). When the first heat exchange system enters a refrigeration mode, a 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 fresh air in a fresh air channel is cooled and dehumidified. When the second heat exchange system enters a refrigeration mode, the refrigerant in the second heat exchange system sequentially flows through the second compressor, the second four-way valve, the third heat exchanger, the second throttling element and the fourth heat exchanger and then flows back to the second compressor, so that fresh air in the fresh air channel is cooled and 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 is that the fresh air temperature is greater than or equal to the first temperature threshold value, controlling the refrigeration operation of the second heat exchange system.
It can be understood that when the fresh air equipment is in the refrigeration mode, the normal temperature of the indoor and outdoor environments is often higher; wherein, the normal temperature refers to the temperature of the air in a natural state. And because the refrigeration process needs to release heat to the outside, when the temperature of the heat release environment is higher, the heat release is more difficult, and the heat exchange system needs higher power.
It should be noted that when the fresh air equipment needs a refrigeration mode, the fresh air temperature 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 required by the fresh air equipment is, and the higher the power is required. 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, less than the first temperature threshold, greater than or equal to the set temperature and less than the set temperature. And judging the temperature interval where the fresh air temperature is located, and determining the cooling degree of the fresh air equipment to the fresh air temperature. Specifically, the value range of the first temperature threshold value 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 passage. Because the air inlet of the air exhaust channel is an indoor environment, after the indoor environment is refrigerated, the temperature of the air exhaust channel is lower than that of the external environment, heat release is easier, and therefore the second heat exchange system has higher energy efficiency than the first heat exchange system. For example, if the external environment is 30 ℃, the temperature in the exhaust channel may be 25 ℃. Therefore, when the cooling degree of the fresh air equipment to the fresh air temperature is higher, the second heat exchange system is controlled to be in refrigeration 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 can be operated in a refrigerating mode; or shut down the first heat exchange system. At this time, the power of the first heat exchange system is smaller than that of the second heat exchange system, so as to assist in cooling fresh air, and further reduce the load of the second heat exchange system.
In addition, in the present embodiment, step S30 may further include:
step S302: and when the first comparison result is that the fresh air temperature is smaller than the first temperature threshold value and the fresh air temperature is larger than or equal to the set temperature, controlling the refrigeration operation of the first heat exchange system.
It can be appreciated that when the fresh air temperature is less than the first temperature threshold and greater than or equal to the set temperature, the required cooling degree of the fresh air equipment for the fresh air temperature is not high. At this time, because the first heat exchange system has better temperature regulation capability, the first heat exchange system can be controlled to be in refrigeration operation for cooling the fresh air temperature more quickly and stably. Of course, the first heat exchange system is started, and the second heat exchange system can be started at the same time, so that the second heat exchange system can be operated in a refrigerating mode; or shut down the second heat exchange system. At this time, the power of the second heat exchange system is smaller than that of the first heat exchange system, so as to assist in cooling fresh air, and further reduce the load of the first heat exchange system.
In addition, in the present embodiment, step S30 may further include:
step S303: and when the first comparison result is that the fresh air temperature is smaller 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 fresh air temperature is less than the set temperature, the fresh air can be directly conveyed to the room to cool the indoor environment. At this time, the first heat exchange system and the second heat exchange system are closed, so that the energy consumption of the fresh air equipment can be reduced.
It should be noted that, in order to ensure normal air supply, after both the first heat exchange system and the second heat exchange system are closed, the fresh air fan in the fresh air channel and the exhaust fan in the exhaust channel are still in an operation state.
In the second embodiment, the temperature interval where the fresh air temperature is located is judged by setting the 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 refrigerating mode are controlled, so that the energy consumption of the fresh air equipment is reduced under the condition of ensuring the fresh air supply and the refrigerating capacity.
Referring to fig. 5, fig. 5 is a schematic flow chart of a third embodiment of a fresh air device control method according to the present invention. Based on the first embodiment and the second embodiment, the present invention proposes a third embodiment of a method for controlling fresh air equipment.
In a third embodiment, the fresh air device is described as being in a heating mode, i.e. 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, a refrigerant in the first heat exchange system sequentially flows through the first compressor, the first four-way valve, the second heat exchanger, the first throttling element and the first heat exchanger and then flows back to the first compressor, so that fresh air in the fresh air channel is heated. When the second heat exchange system enters a heating mode, the refrigerant in the second heat exchange system sequentially flows through the second compressor, the second four-way valve, the fourth heat exchanger, the second throttling element and the third heat exchanger and then flows back to the second compressor, so that the fresh air in the fresh air channel is heated.
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 is that the fresh air temperature is smaller than or equal to the second temperature threshold value, controlling the heating operation of the second heat exchange system.
It can be appreciated that when the fresh air equipment is in the heating mode, the normal temperature of the indoor and outdoor environments is often lower; wherein, the normal temperature refers to the temperature of the air in a natural state. The heat absorption is more difficult because the heat absorption from the outside is needed in the heating process, and the heat exchange system needs higher power as the temperature of the heat absorption environment is lower.
It should be noted that when the fresh air equipment needs a heating mode, the fresh air temperature is often lower than the set temperature; and the higher the fresh air temperature is, the higher the cooling degree of the fresh air temperature required by the fresh air equipment is, and the higher the power is required. 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 where the fresh air temperature is located, and determining the cooling degree of the fresh air equipment to the fresh air temperature. Specifically, the value range of the first temperature threshold value can be-30-10 ℃.
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 passage. Because the air inlet of the air exhaust channel is an indoor environment, after the indoor environment is heated, the temperature of the air exhaust channel is higher than that of the external environment, and heat absorption is easier, so that the second heat exchange system has higher energy efficiency than the first heat exchange system. For example, if the external environment is 5 ℃, the temperature in the exhaust channel may be 15 ℃. Therefore, when the temperature rise degree of the fresh air temperature required by the fresh air equipment is higher, the heating operation of the second heat exchange system is controlled, so that the fresh air equipment has higher energy efficiency. Of course, the second heat exchange system is started, and the first heat exchange system can be started at the same time, so that the first heat exchange system heats and operates; or shut down the first heat exchange system. At this time, the power of the first heat exchange system is smaller than that of the second heat exchange system, so as to assist in heating fresh air, and further reduce the load of the second heat exchange system.
In addition, in the present embodiment, step S30 may further include:
step S305: and when the first comparison result is 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 appreciated that when the fresh air temperature is greater than the second temperature threshold and less than or equal to the set temperature, the temperature of the fresh air equipment is not increased to a high degree. At this time, because the first heat exchange system has better temperature regulation capability, the heating operation of the first heat exchange system can be controlled to rapidly and stably heat the fresh air temperature. Of course, the first heat exchange system is started, and the second heat exchange system can be started at the same time, so that the second heat exchange system heats and operates; or shut down the second heat exchange system. At this time, the power of the second heat exchange system is smaller than that of the first heat exchange system, so as to assist in heating fresh air, and further reduce the load of the first heat exchange system.
In addition, in the present embodiment, step S30 may further include:
step S306: and when the first comparison result is 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 both the first heat exchange system and the second heat exchange system are closed, the fresh air fan in the fresh air channel and the exhaust fan in the exhaust channel are still in an operation state.
It can be understood that when the fresh air temperature is greater than the set temperature, the fresh air can be directly conveyed to the room to raise the temperature of the indoor environment. 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 where the fresh air temperature is located is judged by setting the second temperature threshold value smaller than the set temperature, and the running 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 fresh air supply and the heating capacity.
Referring to fig. 6, fig. 6 is a schematic flow chart of a fourth embodiment of a fresh air device control method according to the present invention. Based on the first embodiment, the second embodiment and the third embodiment, the present invention proposes a fourth embodiment of a method for controlling fresh air equipment.
In the fourth embodiment, in order to complete the adjustment of the set temperature, after determining the on state of the first heat exchange system and/or the second heat exchange system, the operation parameters of the first heat exchange system and/or the second heat exchange system 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 specific implementation, after step S30, the method may further include:
step S40: and obtaining the air outlet temperature of the fresh air equipment.
When the temperature of the air outlet is higher than the set temperature, the indoor environment can be heated; when the temperature of the air outlet is less 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 temperature of the air outlet.
In specific implementation, at least one temperature sensor can be arranged at the outlet of the fresh air channel, and the temperature sensor is connected with the core controller. The temperature sensor may feed back, in real time or intermittently, a detection signal to the core controller, the detection signal being used to characterize the temperature of the environment in which the temperature sensor is located. The core controller analyzes 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 disposed at the rear end of the device to detect the temperature of the air delivered to the room, so as to obtain the air outlet temperature.
Step S50: and 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.
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 air outlet 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 smaller than the outlet air temperature threshold value, it is indicated that the set temperature will decrease at a faster rate. When the fresh air equipment is in the 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 indicated to rise 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, in order to improve fresh air equipment and to set for the temperature regulation effect, make user experience more comfortable, through judging settlement temperature and air-out temperature, adjust fresh air equipment's heat transfer ability. The heat exchange capacity refers to the refrigerating capacity or heating capacity provided by the heat exchange system; the heat exchange capacity is adjusted mainly by adjusting the rotation speed of a compressor in fresh air equipment, the opening degree of a throttling element and the rotation speed of each fan. If the compressor is a constant speed compressor, the refrigerating capacity or the heating capacity can be adjusted by controlling the start and stop of the constant speed compressor. Likewise, each fan can also be controlled by starting and stopping.
When the method is concretely implemented, if the fresh air equipment is in a refrigeration mode, the set temperature is smaller than the indoor temperature threshold value, and the air outlet temperature is smaller than the air outlet temperature threshold value, the set temperature is lower, and the refrigeration capacity is sufficient. At this time, the rotation 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 rotation speed of the fan in the fresh air channel can be reduced. Otherwise, if the set temperature is greater than the indoor temperature threshold, the air outlet temperature is greater than the air outlet temperature threshold, which indicates that the set temperature is higher, and the refrigerating capacity is insufficient, at this time, the rotation 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 rotation speed of the fan in the fresh air channel can be increased.
Likewise, 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 temperature is greater than the outlet temperature threshold, this indicates that the set temperature is higher and the heating capacity is sufficient. At this time, the rotation 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 rotation speed of the fan in the fresh air channel can be reduced. Conversely, if the set temperature is less than the indoor temperature threshold and the air outlet temperature is less than the air outlet temperature threshold, the set temperature is lower, and the heating quantity is insufficient. At this time, the rotational 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 rotational 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 in an on state at the same time, the two heat exchange systems may be adjusted at the same time. Meanwhile, the energy saving problem is considered, and the 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 refrigerating capacity is sufficient at this time, the refrigerating capacities provided by the first heat exchange system and the second heat exchange system are simultaneously reduced, wherein the amplitude reduction of the second heat exchange system is greater than that of the first heat exchange system.
It can be understood that, in a state that the set temperature is less than the indoor temperature threshold and the air outlet temperature is greater than the air outlet temperature threshold, and in a state that the set temperature is greater than the indoor temperature threshold and the air outlet temperature is less than the air outlet temperature threshold, the operation parameters of each component in the first heat exchange system and/or the second heat exchange system can be adjusted according to the working mode (refrigeration mode or heating mode) where the fresh air equipment is located, the specific control mode can be set according to the requirement, and the embodiment is not limited to this.
In the embodiment, the set temperature and the air outlet temperature are judged, and the refrigerating capacity or the heating capacity of the first heat exchange system and/or the second heat exchange system is adjusted according to the working mode of the fresh air equipment, so that the set temperature is in a more comfortable section, and the user experience is improved.
In addition, the embodiment of the invention also provides a storage medium, wherein a fresh air equipment control program is stored on the storage medium, and the fresh air equipment control program realizes the steps of the fresh air equipment control method when being executed by a processor. The technical solutions of all the embodiments can be adopted by the storage medium, so that the storage medium has at least the beneficial effects brought by the technical solutions of the embodiments, and the description is omitted herein.
In addition, referring to fig. 7, fig. 7 is a block diagram illustrating a structure of an embodiment of a fresh air device control apparatus according to the present invention. The embodiment of the invention also provides a fresh air equipment control device.
In this embodiment, the fresh air equipment control device is used for controlling fresh air equipment, and the specific structure of this fresh air equipment can refer to the aforesaid, and fresh air equipment control device includes:
the detection module 100 is configured to obtain a fresh air temperature and a set temperature of the fresh air device.
It should be noted that the fresh air temperature refers to the temperature of air extracted from the external environment by the fresh air device. The set temperature may be a temperature required to be reached by the environment served by the fresh air device, which 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 the current season, time, and the like. Or, 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 taking an example in which the set temperature is an indoor temperature.
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, in real time or intermittently, a detection signal to the detection module 100, which is used to characterize the temperature of the environment in which the temperature sensor is located. After receiving the detection signal, the detection module 100 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 extracted by the fresh air channel. Therefore, a temperature sensor can also be arranged in the external environment to obtain the fresh air temperature. Alternatively, the detection module 100 may also communicate with a weather database to obtain weather data, such as the temperature of the region where the weather database is located, from the weather database, thereby obtaining the fresh air temperature. Of course, other ways of obtaining the fresh air temperature and the set temperature may be adopted, 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, to obtain a first comparison result.
It can be understood that the fresh air equipment can adjust the set temperature, so that the requirement of a user on temperature adjustment is met. For example, when a user needs to cool the room with fresh air, the fresh air device can be controlled to operate in a cooling mode; or when the user needs to heat the room by using the fresh air, 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. And if the external environment and the external environment are in a smooth state, the fresh air temperature is basically the same as the indoor temperature. Therefore, when the temperature of the indoor air is regulated by the fresh air, the temperature of the fresh air needs to be considered, the fresh air is regulated to a certain degree on the basis, and then the fresh air is conveyed to the indoor environment,
when the method is specifically implemented, the temperature regulation degree of the fresh air equipment on the fresh air can be determined according to the difference between the fresh air temperature and the set temperature; the greater the difference, the greater the degree of temperature regulation required. For example, if the fresh air temperature is greater than the set 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 judging the difference degree 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 is indicated that the fresh air temperature is much greater than the set temperature; or the preset temperature threshold value can be far smaller than the set temperature, and if the fresh air temperature is smaller than the preset temperature threshold value, the fresh air temperature is far smaller than the set temperature.
The driving module 300 is configured to control an 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 configured with a two-stage heat exchange system. The second heat exchange system can realize heat recovery, and the 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, the fresh air equipment is required to operate at 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 to perform auxiliary adjustment, so that the fresh air temperature is better adjusted.
It should be noted that, the method for controlling the fresh air device according to the present embodiment may be executed when the fresh air device is started to operate, that is, when the fresh air device receives a startup 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. Or, the method for controlling the fresh air device according to the present embodiment may be performed during operation of the fresh air device, that is, when the driving module 300 detects that the first comparison result meets the control and adjustment condition, the switching 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 that both the first heat exchange system and the second heat exchange system are opened, and the driving module 300 may close the second heat exchange system and only open the first heat exchange system to operate when the fresh air temperature and the set temperature differ less.
In the embodiment, the fresh air equipment is provided with 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 a room served by the fresh air equipment, the comparison module 200 determines the heat exchange capacity required to be provided by the fresh air equipment, and the driving module 300 determines the running state of the two-stage heat exchange system according to the heat exchange capacity required to be provided, so that the fresh air equipment runs in a higher 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 is further configured to control the cooling operation of the second heat exchange system 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 exchange system to perform the cooling operation when the fresh air device is in the cooling mode and the fresh air temperature is less than the first temperature threshold and greater than or equal to the set temperature as a result of the first comparison.
In an embodiment, the driving module 300 may be further configured to control 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 fresh air temperature is less than the set temperature as a result of the first comparison.
In an embodiment, the preset temperature threshold includes a second temperature threshold, where the second temperature threshold is smaller than the set temperature, and the driving module 300 may further control the heating operation of the second heat exchange system when the fresh air device is in the heating mode and the first comparison result is 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 heating operation of the first heat exchange system 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 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 is 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 value, and comparing the air outlet temperature with an air outlet temperature threshold value 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 of the present invention may refer to the above method embodiments, so at least the technical solutions of the foregoing embodiments have all the beneficial effects, and are not repeated 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 one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages 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 terms first, second, third, etc. do not denote any order, but rather the terms first, second, third, etc. are used to interpret the terms as names.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. read only memory mirror (Read Only Memory image, ROM)/random access memory (Random Access Memory, RAM), magnetic disk, optical disk), comprising instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.

Claims (13)

1. The fresh air equipment control method is characterized by comprising 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 an external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an exhaust channel;
the fresh air equipment control method comprises the following steps:
acquiring a fresh air temperature and a set temperature of the fresh air equipment;
the fresh air temperature is respectively compared with a preset temperature threshold and the set temperature to obtain a first comparison result, wherein the preset temperature threshold comprises a first temperature threshold and a second temperature threshold, the first temperature threshold is larger than the set temperature, and the second temperature threshold is smaller than the set temperature; the method comprises the steps of,
and controlling the operation states of the first heat exchange system and/or the second heat exchange system according to the first comparison result and a heating mode or a refrigerating mode corresponding to the fresh air equipment, wherein the operation states of the first heat exchange system and/or the second heat exchange system comprise an opening state and a closing state, the opening state comprises refrigerating operation and heating operation, the opening state corresponds to the heating mode or the refrigerating mode, the first heat exchange system and the second heat exchange system have different heat exchange capacities, and the second heat exchange system is used for heat recovery and has higher energy consumption.
2. The fresh air equipment 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 is 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 equipment 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:
and when 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 the fresh air temperature is larger than or equal to the set temperature, controlling the first heat exchange system to perform refrigeration operation.
4. The fresh air equipment 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 fresh air temperature is smaller than the set temperature as a result of the first comparison, the first heat exchange system and the second heat exchange system are controlled to be in a closed state.
5. The fresh air equipment 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 smaller than or equal to the second temperature threshold value, controlling the heating operation of the second heat exchange system.
6. The fresh air equipment 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:
and when 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 heating operation of the first heat exchange system is controlled.
7. The fresh air equipment 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:
when the fresh air equipment is in a heating mode and the first comparison result is that the fresh air temperature is higher 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 equipment control method according to any one of claims 1 to 7, further comprising, after the controlling the operation state of the first heat exchange system and/or the second heat exchange system according to the first comparison result:
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; the method comprises the steps of,
and adjusting the heat exchange capacity of the fresh air equipment according to the second comparison result.
9. The method for controlling fresh air equipment according to claim 8, wherein the adjusting the heat exchange capacity of the fresh air equipment according to the second comparison result comprises:
Determining the adjusting direction of the fresh air equipment according to the second comparison result;
when the adjusting direction is to improve heat exchange capacity, at least one operation of improving the rotation speed of the target compressor, reducing the opening degree of the target throttling element and improving the rotation speed of the fresh air fan is executed; the method comprises the steps of,
when the adjustment direction is to reduce heat exchange capacity, at least one operation of reducing the rotation speed of the target compressor, increasing the opening degree of the target throttling element and reducing the rotation 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. The fresh air equipment control device is characterized by comprising 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 an external environment, and the second heat exchange system is used for exchanging heat between the fresh air channel and an exhaust channel;
the fresh air equipment control device comprises:
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 respectively comparing the fresh air temperature with a preset temperature threshold value and the set temperature to obtain a first comparison result, wherein the preset temperature threshold value comprises a first temperature threshold value and a second temperature threshold value, the first temperature threshold value is larger than the set temperature, and the second temperature threshold value is smaller than the set temperature; the method comprises the steps of,
the driving module is used for controlling the running states of the first heat exchange system and/or the second heat exchange system according to the first comparison result and a heating mode or a refrigerating mode corresponding to the fresh air equipment, the running states of the first heat exchange system and/or the second heat exchange system comprise an opening state and a closing state, the opening state comprises refrigerating operation and heating operation, the opening state corresponds to the heating mode or the refrigerating mode, the first heat exchange system and the second heat exchange system have different heat exchange capacities, and the second heat exchange system is used for heat recovery and has higher energy consumption.
11. Fresh air equipment, its characterized in that, fresh air equipment includes: the fresh air equipment control method according to any one of claims 1-9 is implemented when the fresh air equipment control program is executed by the processor.
12. The fresh air device of 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, 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 sequentially connected; 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 outdoor to indoor; the method comprises the steps of,
the exhaust channel is internally provided with the third heat exchanger and an exhaust fan.
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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