CN114061041B - 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
CN114061041B
CN114061041B CN202111410438.3A CN202111410438A CN114061041B CN 114061041 B CN114061041 B CN 114061041B CN 202111410438 A CN202111410438 A CN 202111410438A CN 114061041 B CN114061041 B CN 114061041B
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fresh air
dehumidifying
reheating
moisture content
heat pipe
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CN114061041A (en
Inventor
杜顺开
徐振坤
黄剑云
高卓贤
刘步东
李金波
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GD Midea Air Conditioning Equipment Co Ltd
Midea Group Wuhan Refrigeration Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
Midea Group Wuhan Refrigeration Equipment Co Ltd
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Priority to CN202111410438.3A priority Critical patent/CN114061041B/en
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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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
    • F24F3/153—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with subsequent heating, i.e. with the air, given the required humidity in the central station, passing a heating element to achieve the required temperature
    • 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
    • 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
    • F24F2110/20—Humidity
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

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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 relates to the technical field of fresh air equipment, and discloses a fresh air equipment control method, a device, fresh air equipment and a storage medium, wherein the method comprises the following steps: when the fresh air equipment is in a fresh air dehumidifying and reheating mode, controlling a fresh air component to perform fresh air exchange; controlling the dehumidifying and reheating assembly to perform heat pipe circulation so as to dehumidify and reheat the fresh air; acquiring the current temperature and the current moisture content of a preset position in fresh air equipment; and adjusting the operation state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content so as to adjust the dehumidifying amount and the reheating amount of the dehumidifying and reheating assembly. Therefore, the temperature and humidity requirements can be judged through the current temperature and the current moisture content in the dehumidification and reheating process, the dehumidification and reheating quantity are adjusted to be in a proper state, the operation energy efficiency of the heat pipe fresh air machine system is improved while the comfort of the temperature and humidity is met, and the problems that the reheating of the conventional heat pipe fresh air machine system is unstable and the reheating and the dehumidification are affected mutually are solved.

Description

Fresh air equipment control method and device, fresh air equipment and storage medium
Technical Field
The invention relates to the technical field of fresh air equipment, in particular to a fresh air equipment control method and device, fresh air equipment and a storage medium.
Background
The heat pipe circulation effect is influenced by the pressure difference between the evaporating pressure and the condensing pressure, when the pressure difference is enough, the refrigerant circulation flow speed is high, the heat exchange effect is strong, and otherwise, the effect is poor. The evaporating pressure is related to the fresh air inlet temperature, the condensing pressure is related to the dehumidified temperature, and the reheating temperature of the heat pipe is lower than the fresh air temperature, so that the reheating of the heat pipe can not meet the user requirement under the condition of lower fresh air inlet temperature.
However, in the industry, there is no better solution for reducing the reheat effect of the heat pipe at low ambient temperature, and the solutions on the market mainly increase the refrigerant circulation amount by adding a refrigerant pump, but the air outlet temperature still cannot meet the requirements, so that the problem of the air outlet temperature is solved by sacrificing the dehumidification capability, and the problem of lacking a new heat pipe fan and a control method thereof, which are convenient for temperature adjustment and dehumidification, is solved.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a fresh air equipment control method, a device, fresh air equipment and a storage medium, and aims to solve the technical problems of how to control and adjust the dehumidification amount and the reheating amount, improve the operation energy efficiency of a heat pipe fresh air machine system while meeting the comfort of the temperature and humidity of outlet air, and solve the mutual influence of reheating instability, reheating and dehumidification of a conventional heat pipe fresh air machine system.
In order to achieve the above object, the present invention provides a method for controlling a fresh air device, the fresh air device comprising: fresh air component and dehumidification reheat component;
the fresh air equipment control method comprises the following steps:
when the fresh air equipment is in a fresh air dehumidifying and reheating mode, controlling the fresh air assembly to perform fresh air ventilation;
controlling the dehumidifying and reheating component to perform heat pipe circulation so as to dehumidify and reheat fresh air;
acquiring the current temperature and the current moisture content of a preset position in the fresh air equipment;
and adjusting the running state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content so as to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly.
Optionally, the new trend subassembly includes new trend fan, dehumidification reheat subassembly includes: the heat pipe evaporator, the dehumidifying heat exchanger and the heat pipe condenser are sequentially arranged in the fresh air duct;
the control fresh air subassembly carries out fresh air and takes a breath, include:
and starting the fresh air fan to enable fresh air to enter a room after being heated and warmed by the heat pipe condenser after being subjected to heat absorption and temperature reduction in the fresh air channel and being subjected to dehumidification and temperature reduction by the dehumidification heat exchanger, and then carrying out fresh air ventilation.
Optionally, the dehumidifying and reheating assembly further comprises: the throttling component is respectively connected with the first end of the heat pipe condenser and the first end of the heat pipe evaporator, and two ends of the first branch are respectively connected with the second end of the heat pipe condenser and the second end of the heat pipe evaporator; the second branch includes: the first end of the compressor is connected with the second end of the heat pipe condenser, the second end of the compressor is connected with the first end of the electromagnetic valve, and the second end of the electromagnetic valve is connected with the second end of the heat pipe evaporator;
the control of the dehumidification reheat assembly for heat pipe circulation includes:
and opening the dehumidifying heat exchanger, closing the compressor and the electromagnetic valve, opening the throttling component, and conducting the first branch circuit to perform heat pipe circulation.
Optionally, the adjusting the operation state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly includes:
acquiring a target temperature threshold value and a target moisture content threshold value corresponding to the preset position;
When the current moisture content is larger than the target moisture content threshold and the current temperature is smaller than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted through a first control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and increase the reheating amount of the dehumidifying and reheating assembly;
and when the current moisture content is greater than the target moisture content threshold and the current temperature is greater than or equal to the target temperature threshold, adjusting the running state of the dehumidifying and reheating assembly through a second control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and reduce the reheating amount of the dehumidifying and reheating assembly.
Optionally, after the target temperature threshold and the target moisture content threshold corresponding to the preset position are obtained, the method further includes:
when the current moisture content is smaller than or equal to the target moisture content threshold and the current temperature is smaller than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted in a third control mode so as to increase the reheating amount of the dehumidifying and reheating assembly;
when the current moisture content is smaller than or equal to the target moisture content threshold and the current temperature is larger than the target temperature threshold, adjusting the running state of the dehumidifying and reheating assembly in a fourth control mode to reduce the reheating amount of the dehumidifying and reheating assembly;
And when the current moisture content is smaller than or equal to the target moisture content threshold value and the current temperature is equal to the target temperature threshold value, keeping the running state of the dehumidifying and reheating assembly unchanged.
Optionally, the preset position includes: at least one of an air-out detection position and an environment detection position, wherein the target temperature threshold value comprises: at least one of an outlet air temperature threshold and a room temperature threshold, the target moisture content threshold comprising: at least one of an outlet air moisture content threshold value and a room moisture content threshold value;
the obtaining the target temperature threshold and the target moisture content threshold corresponding to the preset position comprises the following steps:
acquiring an air outlet temperature threshold value and an air outlet moisture content threshold value corresponding to the air outlet detection position;
and/or the number of the groups of groups,
and acquiring a room temperature threshold value and a room moisture content threshold value corresponding to the environment detection position.
Optionally, the current temperature includes: the current moisture content comprises at least one of air-out moisture content and room moisture content;
the obtaining the current temperature and the current moisture content of the preset position in the fresh air equipment comprises the following steps:
acquiring a fresh air outlet temperature and a fresh air outlet humidity of the air outlet detection position in the fresh air equipment, and calculating the air moisture content according to the fresh air outlet temperature and the fresh air outlet humidity;
And/or the number of the groups of groups,
acquiring room environment temperature and room environment humidity of the environment detection position in the fresh air equipment, and calculating the room moisture content according to the room environment temperature and the room environment humidity;
and/or the number of the groups of groups,
and acquiring the dehumidified fresh air outlet temperature of the outlet air detection position in the fresh air equipment, and calculating the air moisture content according to the dew point temperature according to the dehumidified fresh air outlet temperature.
In addition, in order to achieve the above object, the present invention also provides a fresh air equipment control device, which includes:
the fresh air ventilation module is used for controlling the fresh air assembly to perform fresh air ventilation when the fresh air equipment is in a fresh air dehumidification reheating mode;
the dehumidifying and reheating module is used for controlling the dehumidifying and reheating assembly to perform heat pipe circulation so as to dehumidify and reheat the fresh air;
the data acquisition module is used for acquiring the current temperature and the current moisture content of a preset position in the fresh air equipment;
and the state adjusting module is used for adjusting the running state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content so as to adjust the dehumidifying amount and the reheating amount of the dehumidifying and reheating assembly.
In addition, in order to achieve the above purpose, the present invention also provides a fresh air device, which includes: the fresh air equipment control system comprises a memory, a processor and a fresh air equipment control program which is stored in the memory and can run on the processor, wherein the fresh air equipment control method is realized when the fresh air equipment control program is executed by the processor.
In addition, in order to achieve the above object, the present invention also provides a storage medium, on which a fresh air device control program is stored, which when executed by a processor, implements the fresh air device control method as described above.
According to the fresh air equipment control method provided by the invention, when the fresh air equipment is in a fresh air dehumidification reheating mode, the fresh air component is controlled to perform fresh air exchange; controlling the dehumidifying and reheating component to perform heat pipe circulation so as to dehumidify and reheat fresh air; acquiring the current temperature and the current moisture content of a preset position in the fresh air equipment; and adjusting the running state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content so as to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly. The novel heat pipe system has the advantages that the temperature and humidity requirements can be judged through the current temperature and the current moisture content in the process of dehumidifying and reheating fresh air through the heat pipe circulation of the dehumidifying and reheating assembly, so that the running state of the dehumidifying and reheating assembly is adjusted, the dehumidifying amount and the reheating amount are in proper states, the running energy efficiency of the novel heat pipe system is improved while the comfort of the temperature and humidity is met, and the problems that the reheating of the novel heat pipe system is unstable and the reheating and the dehumidifying are affected mutually are solved.
Drawings
FIG. 1 is a schematic diagram of a fresh air device structure of a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a method for controlling fresh air equipment according to the present invention;
FIG. 3 is a schematic diagram of a first heat pipe fresh air fan system according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a second heat pipe fresh air machine system according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart of a second embodiment of a method for controlling fresh air equipment according to the present invention;
FIG. 6 is a schematic flow chart of a third embodiment of a method for controlling fresh air equipment according to the present invention;
FIG. 7 is a schematic diagram of overall control logic of an embodiment of a method for controlling a fresh air device according to the present invention;
fig. 8 is a schematic diagram of functional modules 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
1 Compressor 2 First one-way valve
3 Second one-way valve 4 Electromagnetic valve
5 Heat pipeCondenser 6 Throttling component
7 Heat pipe evaporator 8 Dehumidifying heat exchanger
9 Fresh air fan 10 Reheat heat exchanger
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 schematic structural 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. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as keys, and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., wi-Fi interface). The memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable memory (non-volatile memory), such as a disk memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the arrangement of the apparatus shown in FIG. 1 is not limiting and may include more or fewer components than shown, or may be combined with certain components, or a different arrangement of components.
As shown in fig. 1, the memory 1005, which is a 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 an external network and performing data communication with other network devices; the user interface 1003 is mainly used for connecting user equipment and communicating data with the user equipment; the device of the present invention invokes a fresh air device control program stored in the memory 1005 through the processor 1001, and executes the fresh air device control method provided in the embodiment of the present invention.
Based on the hardware structure, the embodiment of the fresh air equipment control method is provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a first embodiment of a method for controlling fresh air equipment according to the present invention.
In a first embodiment, the fresh air device comprises: fresh air component and dehumidification reheat component;
the fresh air equipment control method comprises the following steps:
and step S10, when the fresh air equipment is in a fresh air dehumidifying and reheating mode, controlling the fresh air component to perform fresh air exchange.
It should be noted that, the execution main body of this embodiment may be a fresh air device, where the fresh air device may include a fresh air fan or an air conditioner with a fresh air function, and may further include other devices with a fresh air function, and this embodiment is not limited to this, and in this embodiment, the fresh air device is illustrated by taking the fresh air fan as an example. It should be noted that, the fresh air device in this embodiment may be a heat pipe fresh air machine with a fresh air dehumidifying and reheating function, where the heat pipe fresh air machine may be configured to arrange a heat pipe condenser before and after a cold source, where fresh air is first absorbed in heat by the heat pipe evaporator and cooled, then dehumidified and cooled by the cold source, and then heated by the heat pipe condenser and warmed to be sent into a room. The heat pipe evaporator absorbs heat from the high-temperature fresh air to change the liquid refrigerant into the gaseous refrigerant, the gaseous refrigerant enters the heat pipe condenser under the pressure difference, the dehumidified and cooled low-temperature fresh air is condensed into the liquid refrigerant, and the liquid refrigerant flows into the heat pipe evaporator to complete the heat pipe circulation under the siphon effect generated by the flowing of the throttling component.
In specific implementation, referring to fig. 3, fig. 3 is a schematic diagram of a first heat pipe fresh air fan system, where the heat pipe fresh air fan may include a fresh air component, a dehumidifying and reheating component, and the fresh air component may include a fresh air fan 9 in the figure, and the dehumidifying and reheating component may include a heat pipe evaporator 7, a dehumidifying heat exchanger 8, and a heat pipe condenser 5 in the figure.
And, in addition, the dehumidifying heat exchange assembly may further include: the first throttling part 6 and the first branch and the second branch connected in parallel, the first throttling part 6 is respectively connected with the first end of the heat pipe condenser 5 and the first end of the heat pipe evaporator 7, and two ends of the first branch are respectively connected with the first end of the heat pipe condenser 5 and the second end of the heat pipe evaporator 7, wherein the first branch can comprise: the connection relation between the pipeline and the second one-way valve 3, the first branch circuit can be: the first end of the second one-way valve 3 is connected to the second end of the heat pipe condenser 5. The second branch may include: the first compressor 1, the electromagnetic valve 4 and the first check valve 2, the first end of the first compressor 4 is connected with the first end of the first check valve 2, the second end of the first check valve 2 is connected with the second end of the heat pipe condenser 5, the second end of the first compressor 1 is connected with the first end of the electromagnetic valve 4, and the second end of the electromagnetic valve 4 is connected with the second end of the heat pipe evaporator 7.
The heat pipe fresh air machine further comprises a fresh air duct communicated with the indoor and outdoor, the heat pipe evaporator 7, the dehumidifying heat exchanger 8, the heat pipe condenser 5 and the fresh air fan 9 are sequentially arranged in the fresh air duct of the heat pipe fresh air machine, and fresh air can sequentially pass through the parts in the fresh air duct, so that the effect of dehumidifying and reheating the fresh air is achieved. The cold source in the dehumidifying heat exchanger 8 may be water or a refrigerant, which is not limited in this embodiment.
It should be appreciated that the compressor may be a device for powering a refrigerant work and refrigeration cycle, compressing a low pressure refrigerant into a high temperature refrigerant. The throttling component can be a device for throttling and reducing pressure of the refrigerant. The heat exchanger can be a device for heat exchange between the refrigerant and the air, and the refrigerant with different temperatures is used for cooling, dehumidifying or heating and reheating the air. The fan can be a device for providing power for air working and air circulation, the outdoor fan enables outdoor air to exchange heat with the heat exchanger in a convection mode, and the fresh air fan enables fresh air to exchange heat with the heat exchanger in a convection mode. The first check valve and the second check valve can be used for enabling the refrigerant to flow in a one-way in the pipeline.
It is understood that dehumidification refers to the process of cooling and dehumidifying air by cooling the air below the dew point temperature of the air before flowing through the heat exchanger. Reheat refers to the process that the temperature of the refrigerant is higher than the temperature of the air before flowing through the heat exchanger, and the temperature of the air is raised and reheated.
It will be appreciated that the heat pipe cycles: the liquid refrigerant of the evaporator is changed into a gaseous refrigerant from fresh air heat absorption, the gaseous refrigerant enters a low-pressure condenser under the pressure difference, the gaseous refrigerant of the condenser dissipates heat to cool the dehumidified low-temperature fresh air to be condensed into the liquid refrigerant, and the liquid refrigerant flows into the evaporator to complete the heat pipe circulation under the siphoning effect generated by the flowing of the throttling part. Heat pump cycle: the liquid refrigerant of the evaporator is changed into gaseous refrigerant from fresh air heat absorption, the gaseous refrigerant is subjected to working pressurization and temperature rise through the compressor, the gaseous refrigerant of the condenser dissipates heat to cool the dehumidified low-temperature fresh air and condenses into liquid refrigerant, the liquid refrigerant is throttled and depressurized through the throttling component, and the liquid refrigerant flows into the evaporator to absorb heat to complete heat pump circulation.
In specific implementation, referring to fig. 4, fig. 4 is a schematic diagram of a second heat pipe fresh air fan system, and the dehumidifying and reheating assembly may further include a reheating heat exchanger 10 in the figure, where the reheating heat exchanger 10 may be disposed between a fresh air fan 9 in a fresh air duct and the heat pipe condenser 5. The reheat heat exchanger can use electric heating, refrigerant heating or hot water heating, and the embodiment is not limited to this.
It should be noted that, in the heat pipe fresh air system of fig. 3 and fig. 4, the dehumidifying heat exchangers 8 may be disposed at the same location or at different locations, which is not limited in this embodiment. The embodiment is not limited to a specific position as long as the dehumidifying heat exchanger 8 is disposed between the heat pipe condenser 5 and the fresh air fan 9 in the fresh air duct.
It should be understood that the heat pipe fresh air machine in this embodiment may have a fresh air dehumidifying and reheating function, and the function is correspondingly provided with a fresh air dehumidifying and reheating mode, and in the use process of the user, the fresh air dehumidifying and reheating may be needed in some cases, but the fresh air dehumidifying and reheating may not be needed in some cases, so that whether to turn on the fresh air dehumidifying and reheating function can be selected by the user. Under the condition that a fresh air dehumidifying and reheating function is not started, fresh air dehumidifying and reheating can not be performed, and fresh air can be introduced only in a normal mode, so that the fresh air directly enters a room. Under the condition of starting a fresh air dehumidifying and reheating function, the introduced fresh air can be dehumidified and reheated, and then the fresh air enters a room. The user can input a command through the new fan remote controller or an application program on the mobile terminal, and the new fan dehumidification reheating function is started or closed through the command input by the user, which is not limited in this embodiment.
And S20, controlling the dehumidifying and reheating assembly to perform heat pipe circulation so as to dehumidify and reheat the fresh air.
It should be understood that, referring to fig. 3, the dehumidifying heat exchange assembly of the heat pipe fresh air machine in the present embodiment may comprise: a heat pipe evaporator 7, a dehumidifying heat exchanger 8, a heat pipe condenser 5, a first throttling element 6, and first and second branches connected in parallel. By the connection mode, the components can be connected through pipelines, and the refrigerant can circulate in the pipelines.
It can be understood that the dehumidification reheat assembly can be subjected to heat pipe circulation by controlling the operation state of each component in the dehumidification reheat assembly, so that the fresh air is dehumidified and reheated. The method comprises the following steps: the dehumidifying heat exchanger 8 is started, the compressor 1 and the electromagnetic valve 4 are closed, the throttling part 6 is started, the first branch is conducted to conduct heat pipe circulation, fresh air is cooled, the dehumidifying capacity of the fresh air machine is increased, and the dehumidified fresh air is reheated, so that a better fresh air effect is achieved.
And step S30, acquiring the current temperature and the current moisture content of the preset position in the fresh air equipment.
It should be noted that the preset positions may include: at least one of an air outlet detection position and an environment detection position, wherein the current temperature comprises: at least one of the fresh air outlet temperature and the room ambient temperature, which is not limited in this embodiment. The current moisture content includes at least one of an outlet air moisture content and a room moisture content.
It should be understood that an air outlet temperature sensor may be provided at the air outlet detection position, and the fresh air outlet temperature Tc may be detected by the air outlet temperature sensor. A room temperature sensor may be provided at the environment detection position, and the room environment temperature Tf is detected by the room temperature sensor. Can set up out the rheumatism degree sensor in air-out detection position, detect fresh air-out humidity phi c through out the rheumatism degree sensor. A room humidity sensor may be provided at the environment detection position, and the room environment humidity Φf may be detected by the room humidity sensor. The air outlet temperature sensor and the air outlet humidity sensor can be two independent sensors, can be temperature and humidity sensors integrated, can be two independent sensors and can be temperature and humidity sensors integrated, and the embodiment is not limited to the above.
It will be appreciated that after the current temperature is determined, the current moisture content may be calculated from the current temperature, and the current moisture content may be calculated by one or a combination of the following: 1. calculating the air-out moisture content dc according to the fresh air-out temperature Tc and the fresh air-out humidity phi c; 2. calculating the moisture content df of the room according to the room ambient temperature Tf and the room ambient humidity phi f; 3. and calculating the wind moisture content dc according to the dew point temperature according to the dehumidified fresh air outlet temperature Td.
In a specific implementation, the current moisture content may be calculated by one or more of the above manners, one manner may be selected by setting a priority level to calculate the current moisture content, so as to improve the calculation efficiency, or the current moisture content may be calculated by multiple manners, and the calculated multiple current moisture contents may be calibrated to obtain a more accurate current moisture content, so as to improve the data precision, and may be selected according to the actual situation, which is not limited in this embodiment.
And step S40, adjusting the running state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content so as to adjust the dehumidifying and reheating amount and the reheating amount of the dehumidifying and reheating assembly.
It should be appreciated that after determining the current temperature and the current moisture content, a corresponding target temperature threshold and target moisture content threshold may be determined based on the current temperature and the current moisture content.
In a specific implementation, the current temperature and the target temperature threshold value can be determined according to the temperature sensor included in the heat pipe fresh air machine, and if only one temperature sensor is set in the heat pipe fresh air machine, the temperature acquired by the temperature sensor can be used as the current temperature, and the corresponding temperature threshold value is used as the target temperature threshold value. For example, assuming that only the air outlet temperature sensor is arranged in the heat pipe fresh air machine, the fresh air outlet temperature can be used as the current temperature, and the air outlet temperature threshold can be used as the target temperature threshold.
If the heat pipe fresh air machine includes the plurality of temperature sensors, priorities may be set for the temperature sensors, and the current temperature and the target temperature threshold may be determined according to the priorities, or the temperatures collected by the temperature sensors may be taken as the current temperature and the corresponding temperature threshold may be taken as the target temperature threshold at the same time, which is not limited in this embodiment. For example, assuming that an outlet air temperature sensor and a room temperature sensor are simultaneously provided in the heat pipe fresh air machine, the current temperature and the target temperature threshold may be determined by the following two methods: 1. if the priority of the air outlet temperature sensor is higher than that of the room temperature sensor, the fresh air outlet temperature can be used as the current temperature, and the air outlet temperature threshold can be used as the target temperature threshold. 2. And simultaneously taking the fresh air outlet temperature and the room environment temperature as the current temperature, and taking the outlet temperature threshold value and the room temperature threshold value as target temperature threshold values.
It should be appreciated that the outlet air detection locations correspond to the outlet air temperature threshold T1c and the outlet air moisture threshold Dc, and the ambient detection locations correspond to the room temperature threshold T1f and the room moisture threshold Df. If the current temperature comprises the fresh air outlet temperature Tc, the target temperature threshold also comprises an outlet temperature threshold T1c; if the current temperature includes the room ambient temperature Tf, then the target temperature threshold also includes the room temperature threshold T1f.
Thus, the current temperature may be one or more of the above temperatures, i.e. the current temperature T may be the fresh air outlet temperature Tc, and/or the room ambient temperature Tf. The corresponding target temperature threshold may also be one or more of the above temperature thresholds, i.e., the target temperature threshold T1 may be an outlet air temperature threshold T1c, and/or a room temperature threshold T1f.
Similarly, if the current moisture content includes the outlet air moisture content Dc, the target moisture content threshold also includes the outlet air moisture content threshold Dc, and if the current moisture content includes the room moisture content Df, the target moisture content threshold also includes the room moisture content threshold Df.
Thus, the current moisture content may be one or more of the above-mentioned moisture contents, i.e. the current moisture content d may be the outlet air moisture content dc, and/or the room moisture content df. The corresponding target moisture content threshold value may also be one or more of the above-mentioned moisture content threshold values, i.e. the target moisture content threshold value D may be the outlet air moisture content threshold value Dc, and/or the room moisture content threshold value Df.
In a specific implementation, the outlet temperature threshold T1c is preferably within a certain range or a certain value between-20 and 60 ℃, and the room temperature threshold T1f is preferably set to any interval between the temperatures ±5 ℃. The air-out moisture content threshold Dc is preferably any value or range between 5 and 18g/kg, and the room moisture content threshold Df is preferably set to a certain section between + -5 g/kg of moisture content.
It can be appreciated that the current temperature T of the fresh air device can be detected, and then the current moisture content D is calculated according to the current temperature T, and the corresponding target temperature threshold T1 and the corresponding target moisture content threshold D are searched. The current temperature T is compared with the target temperature T1, and the current moisture content D is compared with the target moisture content threshold D to determine the requirements of temperature and humidity control, so that the operation of the heat pipe fresh air fan system is controlled to adjust the proper dehumidification and reheating amounts. The fresh air equipment control method adjusts the dehumidification amount and the reheating amount of the heat pipe condenser through the control of opening/closing of the electromagnetic valve, opening/closing of the compressor and the like, improves the operation energy efficiency of the heat pipe fresh air machine system while meeting the comfort of the temperature and humidity of the air outlet, and solves the problems that the reheating of the conventional heat pipe fresh air machine system is unstable and the reheating and the dehumidification are mutually influenced.
It will be appreciated that the manner in which the current temperature T is compared with the target temperature T1 includes at least one of the following comparison manners: A. comparing the fresh air outlet temperature Tc with an outlet temperature threshold T1 c; B. the room ambient temperature Tf is compared with a room temperature threshold T1 f.
It will be appreciated that the manner in which the current moisture content D is compared to the target moisture content threshold D includes at least one of the following comparison manners: A. comparing the air-out moisture content Dc with an air-out moisture content threshold Dc; B. the room moisture content Df is compared with a room moisture content threshold Df.
In the embodiment, the fresh air equipment control method can judge the temperature and humidity requirement through the current temperature and the current moisture content in the process of dehumidifying and reheating fresh air through the heat pipe circulation of the dehumidifying and reheating assembly so as to adjust the running state of the dehumidifying and reheating assembly, thereby adjusting the dehumidifying amount and the reheating amount to be in a proper state, improving the running energy efficiency of a new heat pipe fan system while meeting the comfort of temperature and humidity, and solving the problems of unstable reheating and mutual influence of reheating and dehumidifying of a conventional heat pipe fresh air fan heat pipe system.
In an embodiment, as shown in fig. 5, a second embodiment of the fresh air device control method according to the present invention is provided based on the first embodiment, where the fresh air component includes a fresh air fan, and the dehumidifying and reheating component includes: the heat pipe evaporator, the dehumidifying heat exchanger, the heat pipe condenser and the fresh air fan are sequentially arranged in the fresh air duct;
The step S10 includes:
step S101, when the fresh air equipment is in a fresh air dehumidifying and reheating mode, the fresh air fan is started, so that fresh air is enabled to enter a room after being subjected to heat absorption and cooling in the fresh air duct through the heat pipe evaporator, is subjected to dehumidification and cooling through the dehumidifying heat exchanger, and is enabled to enter a room after being heated and warmed through the heat pipe condenser, and fresh air ventilation is performed.
It should be understood that, based on the heat pipe fresh air blower shown in fig. 3, when the heat pipe fresh air blower enters the fresh air dehumidifying and reheating mode, the fresh air blower 6 can be turned on, so that fresh air firstly absorbs heat and cools down in the fresh air duct through the heat pipe evaporator 7, then the fresh air passes through the dehumidifying heat exchanger 8, dehumidifies and cools down the fresh air through the dehumidifying heat exchanger 8, then the fresh air passes through the heat pipe condenser 5, heats up the fresh air through the heat pipe condenser 5, and finally enters a room, thereby ventilating the fresh air.
It should be understood that, based on the heat pipe fresh air blower shown in fig. 4, when the heat pipe fresh air blower enters the fresh air dehumidifying and reheating mode, the fresh air blower 6 may be turned on, so that fresh air firstly absorbs heat and cools down in the fresh air duct through the heat pipe evaporator 7, then the fresh air passes through the dehumidifying heat exchanger 8, dehumidifies and cools down the fresh air through the dehumidifying heat exchanger 8, then the fresh air passes through the heat pipe condenser 5, heats up the fresh air through the heat pipe condenser 5, further heats up through the reheating heat exchanger 10, and finally enters a room, thereby ventilating the fresh air.
In this embodiment, the fresh air equipment control method enables fresh air to sequentially pass through the components through the arrangement of the fresh air component and the dehumidifying and reheating component, so that the effect of dehumidifying and reheating the fresh air is achieved, and the comfort of the fresh air is improved.
In an embodiment, as shown in fig. 6, a third embodiment of the fresh air equipment control method according to the present invention is provided based on the first embodiment or the second embodiment, and in this embodiment, the description is given based on the first embodiment, and the step S40 includes:
step S401, searching a target temperature threshold and a target moisture content threshold corresponding to the preset position.
It should be appreciated that the target temperature threshold T1 and the target moisture content threshold D may be determined in the manner described in the first embodiment, the current temperature T may be compared with the target temperature threshold T1 to obtain a first comparison result, the current moisture content D may be compared with the target moisture content threshold D to obtain a second comparison result, and the dehumidification amount and the reheat amount may be adjusted in combination with the first comparison result and the second comparison result.
It is understood that the dehumidification requirement may be determined according to the second comparison result, and the temperature requirement may be determined according to the second comparison result. If D is greater than D, the dehumidification is increased, and T1 are compared, if T is less than T1, the reheat capacity is improved, and if T is greater than or equal to T1, the reheat capacity is reduced. If D is less than or equal to D and meets the dehumidification requirement, the reheating needs to be improved when T is less than T1, the reheating needs to be reduced when T is more than T1, and the regulation target is met when T=T1.
And step S402, when the current moisture content is greater than the target moisture content threshold and the current temperature is less than the target temperature threshold, adjusting the operation state of the dehumidifying and reheating assembly through a first control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and increase the reheating amount of the dehumidifying and reheating assembly.
It should be appreciated that if the current moisture content D is greater than the target moisture content threshold D and the current temperature T is less than the target temperature threshold T1, it is determined that there is a humidification demand and a warming demand, and the amount of dehumidification and reheat need to be increased.
It will be appreciated that in the event of both a humidification demand and a warming demand, the operating conditions of the components in the dehumidification reheat assembly can be adjusted by a first control scheme to increase both the dehumidification and reheat amounts of the dehumidification reheat assembly.
It should be appreciated that the first control manner may include the following control manners: the compressor 1 and the solenoid valve 4 are opened, the throttle part 6 is opened, and the opening degree of the throttle part 6 is reduced, so that the heat pump cycle is started, the opening degree of the throttle part 6 is reduced, the condensing temperature is increased, the reheating is reduced, and the evaporating temperature is reduced, so that the dehumidifying capability is increased.
Step S403, when the current moisture content is greater than the target moisture content threshold and the current temperature is greater than or equal to the target temperature threshold, adjusting the operation state of the dehumidifying and reheating assembly by a second control mode, so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and reduce the reheating amount of the dehumidifying and reheating assembly.
It should be appreciated that if the current moisture content D is greater than the target moisture content threshold D and the current temperature T is greater than or equal to the target temperature threshold T1, it is determined that there is a humidification demand and a cooling demand, and it is necessary to increase the amount of dehumidification and decrease the amount of reheat.
It will be appreciated that in the event of a humidification demand and a cooling demand, the operating states of the components in the dehumidification reheat assembly may be adjusted by the second control scheme to increase the amount of dehumidification and decrease the amount of reheat of the dehumidification reheat assembly.
It should be appreciated that the second control manner may include the following control manners: the compressor 1 and the electromagnetic valve 4 are started, the throttle part 6 is started, the opening degree of the throttle part 6 is increased, the rotating speed of the fresh air fan is reduced, and therefore the heat pump cycle is started, the opening degree of the throttle part 6 is increased, the condensing temperature is reduced, the reheating is reduced, and the rotating speed of the fresh air fan is reduced, so that the dehumidifying load is reduced.
Further, when the current moisture content is less than or equal to the target moisture content threshold and the current temperature is less than the target temperature threshold, the operation state of the dehumidifying and reheating assembly is adjusted in a third control mode so as to increase the reheat amount of the dehumidifying and reheating assembly. The amount of dehumidification may be reduced, increased, or unchanged, and specifically, the amount of dehumidification may be kept unchanged, which is not limited in this embodiment.
It should be appreciated that if the current moisture content D is less than or equal to the target moisture content threshold D and the current temperature T is less than the target temperature threshold T1, it is determined that there is no humidification demand, only a warming demand, it is necessary to keep the amount of dehumidification unchanged and increase the reheat amount.
It can be appreciated that, when there is no humidification demand and only a temperature increase demand, the operation states of the components in the dehumidifying and reheating assembly can be adjusted by the third control mode, so that the dehumidifying amount of the dehumidifying and reheating assembly is kept unchanged and the reheating amount is increased.
It should be appreciated that the third control scheme may include at least one of the following control schemes: a. reducing the opening of the throttle member 6; b. controlling the interruption of the heat pipe circulation to turn on the heat pipe circulation; c. controlling the heat pipe cycle to be turned on is turned on. The operation state of each part in the dehumidifying and reheating assembly can be adjusted by any one or more of the three control modes, so that the dehumidifying amount of the dehumidifying and reheating assembly is kept unchanged and the reheating amount is increased.
Further, when the current moisture content is less than or equal to the target moisture content threshold and the current temperature is greater than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted in a fourth control mode so as to reduce the reheat of the dehumidifying and reheating assembly. The amount of dehumidification may be reduced, increased, or unchanged, and specifically, the amount of dehumidification may be kept unchanged, which is not limited in this embodiment.
It should be appreciated that if the current moisture content D is less than or equal to the target moisture content threshold D and the current temperature T is greater than the target temperature threshold T1, then it is determined that there is no humidification demand, only a cooling demand, and it is necessary to keep the amount of dehumidification unchanged and reduce reheat.
It can be understood that, in the case that there is no humidification demand and only there is a cooling demand, the operation states of the components in the dehumidification reheat assembly can be adjusted by the fourth control mode, so that the dehumidification amount of the dehumidification reheat assembly is kept unchanged and the reheat amount is reduced.
It should be appreciated that the fourth control scheme may include at least one of the following control schemes: a. increasing the opening degree of the throttle member 6; b. controlling the heat pump cycle to be turned on; c. controlling the heat pipe cycle to be turned on is converted into interrupting the heat pipe cycle. The operation state of each part in the dehumidifying and reheating assembly can be adjusted by any one or more of the three control modes, so that the dehumidifying amount of the dehumidifying and reheating assembly is kept unchanged and the reheating amount is reduced.
Further, when the current moisture content is less than or equal to the target moisture content threshold and the current temperature is equal to the target temperature threshold, the operation state of the dehumidifying and reheating assembly is kept unchanged.
It should be understood that if the current moisture content D is equal to or less than the target moisture content threshold D and the current temperature T is equal to the target temperature threshold T1, it is determined that the temperature and humidity are appropriate, and the current state is maintained. The operation state of the dehumidifying and reheating assembly can be controlled to be unchanged, so that the dehumidifying amount and the reheating amount of the dehumidifying and reheating assembly are kept unchanged.
Referring to fig. 7, fig. 7 is a schematic diagram of overall control logic, and in a specific implementation, taking a fresh air outlet temperature Tc as a current temperature T, an outlet temperature threshold T1c as a target temperature threshold T1, a threshold T1c as 15-20 ℃, an outlet moisture content Dc as a current moisture content, and an outlet moisture content threshold Dc as a target moisture content threshold D, dc as an example, 7-9 g/kg will be described. For example, when the moisture content of the air-out is 10g/kg & gtDc, the temperature of the fresh air-out is 14 ℃ & lt T1, it is judged that dehumidification and reheating are required to be increased, the electromagnetic valve 4 is opened, the compressor 1 is opened to form a heat pump cycle, the opening of the throttling part 6 is reduced to increase the condensation temperature and reduce the evaporation temperature, and if the moisture content of the air-out is 8 g/kg=Dc, the temperature of the fresh air-out is 16 ℃, the current state operation is maintained.
In this embodiment, the fresh air device control method may determine the temperature requirement by comparing the current temperature with the target temperature threshold, determine the humidity requirement by comparing the current moisture content with the target moisture content threshold, and further determine the temperature and humidity requirement by combining the temperature requirement and the humidity requirement, and further adjust the running state of the dehumidifying and heat exchanging component of the heat pipe fresh air machine to adjust the dehumidifying amount and the reheating amount, so that the dehumidifying amount and the reheating amount are kept in a proper range, and the fresh air effect 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.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
In addition, referring to fig. 8, an embodiment of the present invention further provides a fresh air device control apparatus, where the fresh air device control apparatus includes:
and the fresh air ventilation module 100 is used for controlling the fresh air component to perform fresh air ventilation when the fresh air equipment is in a fresh air dehumidifying and reheating mode.
It should be noted that, the fresh air device in this embodiment may be a heat pipe fresh air machine with a fresh air dehumidifying and reheating function, where the heat pipe fresh air machine may be configured to arrange a heat pipe condenser before and after a cold source, where fresh air is first absorbed in heat by the heat pipe evaporator and cooled, then dehumidified and cooled by the cold source, and then heated by the heat pipe condenser and warmed to be sent into a room. The heat pipe evaporator absorbs heat from the high-temperature fresh air to change the liquid refrigerant into the gaseous refrigerant, the gaseous refrigerant enters the heat pipe condenser under the pressure difference, the dehumidified and cooled low-temperature fresh air is condensed into the liquid refrigerant, and the liquid refrigerant flows into the heat pipe evaporator to complete the heat pipe circulation under the siphon effect generated by the flowing of the throttling component.
In specific implementation, referring to fig. 3, fig. 3 is a schematic diagram of a first heat pipe fresh air fan system, where the heat pipe fresh air fan may include a fresh air component, a dehumidifying and reheating component, and the fresh air component may include a fresh air fan 9 in the figure, and the dehumidifying and reheating component may include a heat pipe evaporator 7, a dehumidifying heat exchanger 8, and a heat pipe condenser 5 in the figure.
And, in addition, the dehumidifying heat exchange assembly may further include: the first throttling part 6 and the first branch and the second branch connected in parallel, the first throttling part 6 is respectively connected with the first end of the heat pipe condenser 5 and the first end of the heat pipe evaporator 7, and two ends of the first branch are respectively connected with the first end of the heat pipe condenser 5 and the second end of the heat pipe evaporator 7, wherein the first branch can comprise: the connection relation between the pipeline and the second one-way valve 3, the first branch circuit can be: the first end of the second one-way valve 3 is connected to the second end of the heat pipe condenser 5. The second branch may include: the first compressor 1, the electromagnetic valve 4 and the first check valve 2, the first end of the first compressor 4 is connected with the first end of the first check valve 2, the second end of the first check valve 2 is connected with the second end of the heat pipe condenser 5, the second end of the first compressor 1 is connected with the first end of the electromagnetic valve 4, and the second end of the electromagnetic valve 4 is connected with the second end of the heat pipe evaporator 7.
The heat pipe fresh air machine further comprises a fresh air duct communicated with the indoor and outdoor, the heat pipe evaporator 7, the dehumidifying heat exchanger 8, the heat pipe condenser 5 and the fresh air fan 9 are sequentially arranged in the fresh air duct of the heat pipe fresh air machine, and fresh air can sequentially pass through the parts in the fresh air duct, so that the effect of dehumidifying and reheating the fresh air is achieved. The cold source in the dehumidifying heat exchanger 8 may be water or a refrigerant, which is not limited in this embodiment.
It should be appreciated that the compressor may be a device for powering a refrigerant work and refrigeration cycle, compressing a low pressure refrigerant into a high temperature refrigerant. The throttling component can be a device for throttling and reducing pressure of the refrigerant. The heat exchanger can be a device for heat exchange between the refrigerant and the air, and the refrigerant with different temperatures is used for cooling, dehumidifying or heating and reheating the air. The fan can be a device for providing power for air working and air circulation, the outdoor fan enables outdoor air to exchange heat with the heat exchanger in a convection mode, and the fresh air fan enables fresh air to exchange heat with the heat exchanger in a convection mode. The first check valve and the second check valve can be used for enabling the refrigerant to flow in a one-way in the pipeline.
It is understood that dehumidification refers to the process of cooling and dehumidifying air by cooling the air below the dew point temperature of the air before flowing through the heat exchanger. Reheat refers to the process that the temperature of the refrigerant is higher than the temperature of the air before flowing through the heat exchanger, and the temperature of the air is raised and reheated.
It will be appreciated that the heat pipe cycles: the liquid refrigerant of the evaporator is changed into a gaseous refrigerant from fresh air heat absorption, the gaseous refrigerant enters a low-pressure condenser under the pressure difference, the gaseous refrigerant of the condenser dissipates heat to cool the dehumidified low-temperature fresh air to be condensed into the liquid refrigerant, and the liquid refrigerant flows into the evaporator to complete the heat pipe circulation under the siphoning effect generated by the flowing of the throttling part. Heat pump cycle: the liquid refrigerant of the evaporator is changed into gaseous refrigerant from fresh air heat absorption, the gaseous refrigerant is subjected to working pressurization and temperature rise through the compressor, the gaseous refrigerant of the condenser dissipates heat to cool the dehumidified low-temperature fresh air and condenses into liquid refrigerant, the liquid refrigerant is throttled and depressurized through the throttling component, and the liquid refrigerant flows into the evaporator to absorb heat to complete heat pump circulation.
In specific implementation, referring to fig. 4, fig. 4 is a schematic diagram of a second heat pipe fresh air fan system, and the dehumidifying and reheating assembly may further include a reheating heat exchanger 10 in the figure, where the reheating heat exchanger 10 may be disposed between a fresh air fan 9 in a fresh air duct and the heat pipe condenser 5. The reheat heat exchanger can use electric heating, refrigerant heating or hot water heating, and the embodiment is not limited to this.
It should be noted that, in the heat pipe fresh air system of fig. 3 and fig. 4, the dehumidifying heat exchangers 8 may be disposed at the same location or at different locations, which is not limited in this embodiment. The embodiment is not limited to a specific position as long as the dehumidifying heat exchanger 8 is disposed between the heat pipe condenser 5 and the fresh air fan 9 in the fresh air duct.
It should be understood that the heat pipe fresh air machine in this embodiment may have a fresh air dehumidifying and reheating function, and the function is correspondingly provided with a fresh air dehumidifying and reheating mode, and in the use process of the user, the fresh air dehumidifying and reheating may be needed in some cases, but the fresh air dehumidifying and reheating may not be needed in some cases, so that whether to turn on the fresh air dehumidifying and reheating function can be selected by the user. Under the condition that a fresh air dehumidifying and reheating function is not started, fresh air dehumidifying and reheating can not be performed, and fresh air can be introduced only in a normal mode, so that the fresh air directly enters a room. Under the condition of starting a fresh air dehumidifying and reheating function, the introduced fresh air can be dehumidified and reheated, and then the fresh air enters a room. The user can input a command through the new fan remote controller or an application program on the mobile terminal, and the new fan dehumidification reheating function is started or closed through the command input by the user, which is not limited in this embodiment.
The dehumidifying and reheating module 200 is used for controlling the dehumidifying and reheating assembly to perform heat pipe circulation so as to dehumidify and reheat the fresh air.
It should be understood that, referring to fig. 3, the dehumidifying heat exchange assembly of the heat pipe fresh air machine in the present embodiment may comprise: a heat pipe evaporator 7, a dehumidifying heat exchanger 8, a heat pipe condenser 5, a first throttling element 6, and first and second branches connected in parallel. By the connection mode, the components can be connected through pipelines, and the refrigerant can circulate in the pipelines.
It can be understood that the dehumidification reheat assembly can be subjected to heat pipe circulation by controlling the operation state of each component in the dehumidification reheat assembly, so that the fresh air is dehumidified and reheated. The method comprises the following steps: the dehumidifying heat exchanger 8 is started, the compressor 1 and the electromagnetic valve 4 are closed, the throttling part 6 is started, the first branch is conducted to conduct heat pipe circulation, fresh air is cooled, the dehumidifying capacity of the fresh air machine is increased, and the dehumidified fresh air is reheated, so that a better fresh air effect is achieved.
And the data acquisition module 300 is used for acquiring the current temperature and the current moisture content of the preset position in the fresh air equipment.
It should be noted that the preset positions may include: at least one of an air outlet detection position and an environment detection position, wherein the current temperature comprises: at least one of the fresh air outlet temperature and the room ambient temperature, which is not limited in this embodiment. The current moisture content includes at least one of an outlet air moisture content and a room moisture content.
It should be understood that an air outlet temperature sensor may be provided at the air outlet detection position, and the fresh air outlet temperature Tc may be detected by the air outlet temperature sensor. A room temperature sensor may be provided at the environment detection position, and the room environment temperature Tf is detected by the room temperature sensor. Can set up out the rheumatism degree sensor in air-out detection position, detect fresh air-out humidity phi c through out the rheumatism degree sensor. A room humidity sensor may be provided at the environment detection position, and the room environment humidity Φf may be detected by the room humidity sensor. The air outlet temperature sensor and the air outlet humidity sensor can be two independent sensors, can be temperature and humidity sensors integrated, can be two independent sensors and can be temperature and humidity sensors integrated, and the embodiment is not limited to the above.
It will be appreciated that after the current temperature is determined, the current moisture content may be calculated from the current temperature, and the current moisture content may be calculated by one or a combination of the following: 1. calculating the air-out moisture content dc according to the fresh air-out temperature Tc and the fresh air-out humidity phi c; 2. calculating the moisture content df of the room according to the room ambient temperature Tf and the room ambient humidity phi f; 3. and calculating the wind moisture content dc according to the dew point temperature according to the dehumidified fresh air outlet temperature Td.
In a specific implementation, the current moisture content may be calculated by one or more of the above manners, one manner may be selected by setting a priority level to calculate the current moisture content, so as to improve the calculation efficiency, or the current moisture content may be calculated by multiple manners, and the calculated multiple current moisture contents may be calibrated to obtain a more accurate current moisture content, so as to improve the data precision, and may be selected according to the actual situation, which is not limited in this embodiment.
The state adjustment module 400 is configured to adjust an operation state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content, so as to adjust a dehumidifying amount and a reheating amount of the dehumidifying and reheating assembly.
It should be appreciated that after determining the current temperature and the current moisture content, a corresponding target temperature threshold and target moisture content threshold may be determined based on the current temperature and the current moisture content.
In a specific implementation, the current temperature and the target temperature threshold value can be determined according to the temperature sensor included in the heat pipe fresh air machine, and if only one temperature sensor is set in the heat pipe fresh air machine, the temperature acquired by the temperature sensor can be used as the current temperature, and the corresponding temperature threshold value is used as the target temperature threshold value. For example, assuming that only the air outlet temperature sensor is arranged in the heat pipe fresh air machine, the fresh air outlet temperature can be used as the current temperature, and the air outlet temperature threshold can be used as the target temperature threshold.
If the heat pipe fresh air machine includes the plurality of temperature sensors, priorities may be set for the temperature sensors, and the current temperature and the target temperature threshold may be determined according to the priorities, or the temperatures collected by the temperature sensors may be taken as the current temperature and the corresponding temperature threshold may be taken as the target temperature threshold at the same time, which is not limited in this embodiment. For example, assuming that an outlet air temperature sensor and a room temperature sensor are simultaneously provided in the heat pipe fresh air machine, the current temperature and the target temperature threshold may be determined by the following two methods: 1. if the priority of the air outlet temperature sensor is higher than that of the room temperature sensor, the fresh air outlet temperature can be used as the current temperature, and the air outlet temperature threshold can be used as the target temperature threshold. 2. And simultaneously taking the fresh air outlet temperature and the room environment temperature as the current temperature, and taking the outlet temperature threshold value and the room temperature threshold value as target temperature threshold values.
It should be appreciated that the outlet air detection locations correspond to the outlet air temperature threshold T1c and the outlet air moisture threshold Dc, and the ambient detection locations correspond to the room temperature threshold T1f and the room moisture threshold Df. If the current temperature comprises the fresh air outlet temperature Tc, the target temperature threshold also comprises an outlet temperature threshold T1c; if the current temperature includes the room ambient temperature Tf, then the target temperature threshold also includes the room temperature threshold T1f.
Thus, the current temperature may be one or more of the above temperatures, i.e. the current temperature T may be the fresh air outlet temperature Tc, and/or the room ambient temperature Tf. The corresponding target temperature threshold may also be one or more of the above temperature thresholds, i.e., the target temperature threshold T1 may be an outlet air temperature threshold T1c, and/or a room temperature threshold T1f.
Similarly, if the current moisture content includes the outlet air moisture content Dc, the target moisture content threshold also includes the outlet air moisture content threshold Dc, and if the current moisture content includes the room moisture content Df, the target moisture content threshold also includes the room moisture content threshold Df.
Thus, the current moisture content may be one or more of the above-mentioned moisture contents, i.e. the current moisture content d may be the outlet air moisture content dc, and/or the room moisture content df. The corresponding target moisture content threshold value may also be one or more of the above-mentioned moisture content threshold values, i.e. the target moisture content threshold value D may be the outlet air moisture content threshold value Dc, and/or the room moisture content threshold value Df.
In a specific implementation, the outlet temperature threshold T1c is preferably within a certain range or a certain value between-20 and 60 ℃, and the room temperature threshold T1f is preferably set to any interval between the temperatures ±5 ℃. The air-out moisture content threshold Dc is preferably any value or range between 5 and 18g/kg, and the room moisture content threshold Df is preferably set to a certain section between + -5 g/kg of moisture content.
It can be appreciated that the current temperature T of the fresh air device can be detected, and then the current moisture content D is calculated according to the current temperature T, and the corresponding target temperature threshold T1 and the corresponding target moisture content threshold D are searched. The current temperature T is compared with the target temperature T1, and the current moisture content D is compared with the target moisture content threshold D to determine the requirements of temperature and humidity control, so that the operation of the heat pipe fresh air fan system is controlled to adjust the proper dehumidification and reheating amounts. The fresh air equipment control method adjusts the dehumidification amount and the reheating amount of the heat pipe condenser through the control of opening/closing of the electromagnetic valve, opening/closing of the compressor and the like, improves the operation energy efficiency of the heat pipe fresh air machine system while meeting the comfort of the temperature and humidity of the air outlet, and solves the problems that the reheating of the conventional heat pipe fresh air machine system is unstable and the reheating and the dehumidification are mutually influenced.
It will be appreciated that the manner in which the current temperature T is compared with the target temperature T1 includes at least one of the following comparison manners: A. comparing the fresh air outlet temperature Tc with an outlet temperature threshold T1 c; B. the room ambient temperature Tf is compared with a room temperature threshold T1 f.
It will be appreciated that the manner in which the current moisture content D is compared to the target moisture content threshold D includes at least one of the following comparison manners: A. comparing the air-out moisture content Dc with an air-out moisture content threshold Dc; B. the room moisture content Df is compared with a room moisture content threshold Df.
In this embodiment, the temperature and humidity requirement can be judged through the current temperature and the current moisture content in the process of dehumidifying and reheating fresh air through the heat pipe circulation of the dehumidifying and reheating component, so that the running state of the dehumidifying and reheating component is adjusted, the dehumidifying amount and the reheating amount are in proper states, the running energy efficiency of the heat pipe fresh air machine system is improved while the comfort of the temperature and humidity is met, and the problems that the reheating of the conventional heat pipe fresh air machine system is unstable and the reheating and the dehumidifying are mutually influenced are solved.
Other embodiments or specific implementation methods of the fresh air equipment control device of the present invention may refer to the above method embodiments, and are not described 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 apparatus 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 apparatus. 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 apparatus 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.
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 this 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 an estimator readable storage medium (such as ROM/RAM, magnetic disk, optical disk) as described above, including several instructions for causing an intelligent device (which may be a mobile phone, estimator, fresh air device, or network fresh air 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 (7)

1. The utility model provides a fresh air equipment control method which is characterized in that the fresh air equipment includes: fresh air component and dehumidification reheat component;
the fresh air equipment control method comprises the following steps:
when the fresh air equipment is in a fresh air dehumidifying and reheating mode, controlling the fresh air assembly to perform fresh air ventilation;
controlling the dehumidifying and reheating component to perform heat pipe circulation so as to dehumidify and reheat fresh air;
acquiring the current temperature and the current moisture content of a preset position in the fresh air equipment; and
adjusting the running state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly;
the new trend subassembly includes the new trend fan, dehumidification reheat subassembly includes: the heat pipe evaporator, the dehumidifying heat exchanger and the heat pipe condenser are sequentially arranged in the fresh air duct;
The control fresh air subassembly carries out fresh air and takes a breath, include:
starting the fresh air fan, enabling fresh air to absorb heat and cool through the heat pipe evaporator in the fresh air duct, then dehumidifying and cooling through the dehumidifying heat exchanger, heating through the heat pipe condenser, and then entering a room for fresh air ventilation;
the dehumidify reheat assembly further includes: the throttling component is respectively connected with the first end of the heat pipe condenser and the first end of the heat pipe evaporator, and two ends of the first branch are respectively connected with the second end of the heat pipe condenser and the second end of the heat pipe evaporator; the second branch includes: the first end of the compressor is connected with the second end of the heat pipe condenser, the second end of the compressor is connected with the first end of the electromagnetic valve, and the second end of the electromagnetic valve is connected with the second end of the heat pipe evaporator;
the adjusting the operation state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly includes:
Acquiring a target temperature threshold value and a target moisture content threshold value corresponding to the preset position;
when the current moisture content is larger than the target moisture content threshold and the current temperature is smaller than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted through a first control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and increase the reheating amount of the dehumidifying and reheating assembly; and
when the current moisture content is greater than the target moisture content threshold and the current temperature is greater than or equal to the target temperature threshold, adjusting the running state of the dehumidifying and reheating assembly through a second control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and reduce the reheating amount of the dehumidifying and reheating assembly;
after the target temperature threshold value and the target moisture content threshold value corresponding to the preset position are obtained, the method further comprises the following steps:
when the current moisture content is smaller than or equal to the target moisture content threshold and the current temperature is smaller than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted in a third control mode so as to increase the reheating amount of the dehumidifying and reheating assembly;
when the current moisture content is smaller than or equal to the target moisture content threshold and the current temperature is larger than the target temperature threshold, adjusting the running state of the dehumidifying and reheating assembly in a fourth control mode to reduce the reheating amount of the dehumidifying and reheating assembly; and
When the current moisture content is less than or equal to the target moisture content threshold value and the current temperature is equal to the target temperature threshold value, keeping the running state of the dehumidifying and reheating assembly unchanged;
the control mode of the dehumidification reheat assembly comprises a first control mode, a second control mode, a third control mode and a fourth control mode, wherein the first control mode comprises the steps of opening a compressor and an electromagnetic valve, opening a throttle part and reducing the opening of the throttle part, the second control mode comprises the steps of opening the compressor and the electromagnetic valve, opening the throttle part and increasing the opening of the throttle part, and the third control mode comprises at least one of the following control modes: reducing the opening of the throttling component, controlling the interruption of the heat pipe cycle to turn on the heat pipe cycle, and controlling the turning on of the heat pipe cycle to turn on the heat pump cycle, the fourth control mode comprising at least one of the following control modes: increasing the opening of the throttling component, controlling the heat pump cycle to be turned on, and controlling the heat pipe cycle to be turned on to be turned off.
2. The method of claim 1, wherein controlling the dehumidify reheat assembly to perform heat pipe cycling comprises:
And opening the dehumidifying heat exchanger, closing the compressor and the electromagnetic valve, opening the throttling component, and conducting the first branch circuit to perform heat pipe circulation.
3. The fresh air equipment control method according to claim 1, wherein the preset position comprises: at least one of an air-out detection position and an environment detection position, wherein the target temperature threshold value comprises: at least one of an outlet air temperature threshold and a room temperature threshold, the target moisture content threshold comprising: at least one of an outlet air moisture content threshold value and a room moisture content threshold value;
the obtaining the target temperature threshold and the target moisture content threshold corresponding to the preset position comprises the following steps:
acquiring an air outlet temperature threshold value and an air outlet moisture content threshold value corresponding to the air outlet detection position;
and/or the number of the groups of groups,
and acquiring a room temperature threshold value and a room moisture content threshold value corresponding to the environment detection position.
4. The fresh air equipment control method according to claim 1, wherein the current temperature includes: the current moisture content comprises at least one of air-out moisture content and room moisture content;
the obtaining the current temperature and the current moisture content of the preset position in the fresh air equipment comprises the following steps:
Acquiring a fresh air outlet temperature and a fresh air outlet humidity of an air outlet detection position in the fresh air equipment, and calculating the air moisture content according to the fresh air outlet temperature and the fresh air outlet rheumatism;
and/or the number of the groups of groups,
acquiring room environment temperature and room environment humidity of an environment detection position in the fresh air equipment, and calculating the room moisture content according to the room environment temperature and the room environment humidity;
and/or the number of the groups of groups,
and acquiring the dehumidified fresh air outlet temperature of the outlet air detection position in the fresh air equipment, and calculating the air moisture content according to the dew point temperature according to the dehumidified fresh air outlet temperature.
5. Fresh air equipment controlling means, its characterized in that, fresh air equipment controlling means includes:
the fresh air ventilation module is used for controlling the fresh air assembly to perform fresh air ventilation when the fresh air equipment is in a fresh air dehumidification reheating mode;
the dehumidifying and reheating module is used for controlling the dehumidifying and reheating assembly to perform heat pipe circulation so as to dehumidify and reheat the fresh air;
the data acquisition module is used for acquiring the current temperature and the current moisture content of a preset position in the fresh air equipment;
the state adjusting module is used for adjusting the running state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content so as to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly;
The new trend subassembly includes the new trend fan, dehumidification reheat subassembly includes: the heat pipe evaporator, the dehumidifying heat exchanger and the heat pipe condenser are sequentially arranged in the fresh air duct;
the new trend subassembly of control carries out new trend and takes a breath, includes:
starting the fresh air fan, enabling fresh air to absorb heat and cool through the heat pipe evaporator in the fresh air duct, then dehumidifying and cooling through the dehumidifying heat exchanger, heating through the heat pipe condenser, and then entering a room for fresh air ventilation;
the dehumidify reheat assembly further includes: the throttling component is respectively connected with the first end of the heat pipe condenser and the first end of the heat pipe evaporator, and two ends of the first branch are respectively connected with the second end of the heat pipe condenser and the second end of the heat pipe evaporator; the second branch includes: the first end of the compressor is connected with the second end of the heat pipe condenser, the second end of the compressor is connected with the first end of the electromagnetic valve, and the second end of the electromagnetic valve is connected with the second end of the heat pipe evaporator;
The adjusting the operation state of the dehumidifying and reheating assembly according to the current temperature and the current moisture content to adjust the dehumidifying and reheating amount of the dehumidifying and reheating assembly includes:
acquiring a target temperature threshold value and a target moisture content threshold value corresponding to the preset position;
when the current moisture content is larger than the target moisture content threshold and the current temperature is smaller than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted through a first control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and increase the reheating amount of the dehumidifying and reheating assembly; and
when the current moisture content is greater than the target moisture content threshold and the current temperature is greater than or equal to the target temperature threshold, adjusting the running state of the dehumidifying and reheating assembly through a second control mode so as to increase the dehumidifying amount of the dehumidifying and reheating assembly and reduce the reheating amount of the dehumidifying and reheating assembly;
after the target temperature threshold value and the target moisture content threshold value corresponding to the preset position are obtained, the method further comprises the following steps:
when the current moisture content is smaller than or equal to the target moisture content threshold and the current temperature is smaller than the target temperature threshold, the running state of the dehumidifying and reheating assembly is adjusted in a third control mode so as to increase the reheating amount of the dehumidifying and reheating assembly;
When the current moisture content is smaller than or equal to the target moisture content threshold and the current temperature is larger than the target temperature threshold, adjusting the running state of the dehumidifying and reheating assembly in a fourth control mode to reduce the reheating amount of the dehumidifying and reheating assembly; and
when the current moisture content is less than or equal to the target moisture content threshold value and the current temperature is equal to the target temperature threshold value, keeping the running state of the dehumidifying and reheating assembly unchanged;
the control mode of the dehumidification reheat assembly comprises a first control mode, a second control mode, a third control mode and a fourth control mode, wherein the first control mode comprises the steps of opening a compressor and an electromagnetic valve, opening a throttle part and reducing the opening of the throttle part, the second control mode comprises the steps of opening the compressor and the electromagnetic valve, opening the throttle part and increasing the opening of the throttle part, and the third control mode comprises at least one of the following control modes: reducing the opening of the throttling component, controlling the interruption of the heat pipe cycle to turn on the heat pipe cycle, and controlling the turning on of the heat pipe cycle to turn on the heat pump cycle, the fourth control mode comprising at least one of the following control modes: increasing the opening of the throttling component, controlling the heat pump cycle to be turned on, and controlling the heat pipe cycle to be turned on to be turned off.
6. Fresh air equipment, its characterized in that, fresh air equipment includes: the fresh air equipment control method according to any one of claims 1 to 4 is realized when the fresh air equipment control program is executed by the processor.
7. 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 4.
CN202111410438.3A 2021-11-24 2021-11-24 Fresh air equipment control method and device, fresh air equipment and storage medium Active CN114061041B (en)

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