CN107990473B - Air conditioning system, air conditioner temperature and humidity adjusting method and air conditioner - Google Patents
Air conditioning system, air conditioner temperature and humidity adjusting method and air conditioner Download PDFInfo
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- CN107990473B CN107990473B CN201711188667.9A CN201711188667A CN107990473B CN 107990473 B CN107990473 B CN 107990473B CN 201711188667 A CN201711188667 A CN 201711188667A CN 107990473 B CN107990473 B CN 107990473B
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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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/04—Air-mixing units
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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
- 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
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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
- 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
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Abstract
The invention discloses an air conditioning system, comprising: the air return pipeline is communicated with a fresh air pipeline and a water vapor balance pipeline; the entry of new trend pipeline is provided with the new trend and adjusts the air brake, the entry of vapor balance pipeline has set gradually vapor regulation air brake and sclausura hydrophilic membrane. The invention also discloses a temperature and humidity adjusting method of the air conditioner and the air conditioner. The invention realizes the independent adjustment of the humidity and the temperature of the air conditioner and ensures that the air conditioner operates more stably and efficiently.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioning system, an air conditioner temperature and humidity adjusting method and an air conditioner.
Background
In the existing air conditioner, the fresh air function is mostly realized by adding a fresh air port on a return air pipeline, the simple scheme is to manually control the opening and closing of the fresh air port, and the improved scheme is to automatically adjust the opening and closing of the fresh air port according to monitored parameters such as temperature and the like. However, in these solutions, outdoor fresh air is directly introduced into the return air duct, which may cause the indoor temperature to rise or the indoor humidity to rise greatly. For example, when the indoor environment is cool and dry, and the outdoor environment is high in temperature and high in humidity, the introduced fresh air can improve the indoor humidity, but increases the refrigeration load, so that the energy consumption of the air conditioner is increased.
Disclosure of Invention
The invention mainly aims to provide an air conditioning system, an air conditioner temperature and humidity adjusting method and an air conditioner, aiming at realizing independent adjustment of the humidity and temperature of the air conditioner and ensuring that the air conditioner can run more stably and efficiently.
To achieve the above object, the present invention provides an air conditioning system comprising:
the air return pipeline is communicated with a fresh air pipeline and a water vapor balance pipeline; the entry of new trend pipeline is provided with the new trend and adjusts the air brake, the entry of vapor balance pipeline has set gradually vapor regulation air brake and sclausura hydrophilic membrane.
Preferably, the non-porous hydrophilic membrane is a permeable membrane.
Preferably, the outside of new trend pipeline is provided with fresh air dry bulb sensor and fresh air wet bulb sensor, return air pipeline inboard is provided with return air dry bulb sensor and return air wet bulb sensor.
In order to achieve the above object, the present invention further provides a method for adjusting the temperature and humidity of an air conditioner, wherein the method for adjusting the temperature and humidity of the air conditioner comprises the following steps:
acquiring humidity parameters of an air conditioning system, wherein the humidity parameters comprise return air moisture content, fresh air moisture content and indoor relative humidity;
acquiring enthalpy parameters of the air conditioning system, wherein the enthalpy parameters comprise return air enthalpy and fresh air enthalpy;
and adjusting the opening of the fresh air adjusting air brake and the opening of the water vapor adjusting air brake according to the humidity parameter and the enthalpy parameter.
Preferably, the step of acquiring the humidity parameter of the air conditioning system comprises:
obtaining return air parameters, wherein the return air parameters comprise return air dry-bulb temperature detected by a return air dry-bulb sensor and return air wet-bulb temperature detected by a return air wet-bulb sensor;
acquiring fresh air parameters, wherein the fresh air parameters comprise fresh air dry bulb temperature detected by a fresh air dry bulb sensor and fresh air wet bulb temperature detected by a fresh air wet bulb sensor;
acquiring the ambient atmospheric pressure of the environment where the air conditioning system is located, which is detected by an atmospheric pressure sensor;
and calculating the humidity parameter of the air conditioning system according to the return air parameter, the fresh air parameter and the ambient atmospheric pressure.
Preferably, the step of acquiring the enthalpy parameter of the air conditioning system includes:
and calculating an enthalpy value parameter of the air conditioning system according to the humidity parameter, the return air dry-bulb temperature and the fresh air dry-bulb temperature.
Preferably, the step of adjusting the opening of the fresh air adjusting damper and the opening of the water vapor adjusting damper according to the humidity parameter and the enthalpy parameter comprises:
when the moisture content of the return air is greater than the moisture content of the fresh air, the enthalpy value of the return air is greater than the enthalpy value of the fresh air and the indoor relative humidity is greater than a first preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is larger than the fresh air enthalpy value, and the indoor relative humidity is smaller than a second preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is smaller than the fresh air enthalpy value and the indoor relative humidity is smaller than the second preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is greater than the fresh air moisture content, the return air enthalpy value is less than the fresh air enthalpy value and the indoor relative humidity is greater than the first preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased, wherein the first preset relative humidity is greater than the second preset relative humidity.
Preferably, the step of reducing the opening degree of the fresh air adjusting damper comprises:
judging whether the opening of the fresh air adjusting air brake is larger than the minimum opening of the fresh air adjusting air brake or not;
the opening degree of the fresh air adjusting air brake is larger than the minimum opening degree of the fresh air adjusting air brake, and the opening degree of the fresh air adjusting air brake is larger than the sum of the minimum opening degree of the fresh air adjusting air brake and the preset opening degree, the opening degree of the fresh air adjusting air brake is reduced by the preset opening degree.
Preferably, the preset opening is determined according to the return air enthalpy value and the fresh air enthalpy value.
In order to achieve the above object, the present invention also provides an air conditioner, comprising:
the temperature and humidity adjusting method comprises a memory, a processor and an air conditioner temperature and humidity adjusting program which is stored on the memory and can run on the processor, wherein the air conditioner temperature and humidity adjusting program realizes the steps of the air conditioner temperature and humidity adjusting method when being executed by the processor.
According to the air conditioning system, the temperature and humidity adjusting method of the air conditioner and the air conditioner, the humidity parameter and the enthalpy parameter of the air conditioning system are obtained, and the opening of the fresh air adjusting air brake and the opening of the water vapor adjusting air brake are adjusted according to the humidity parameter and the enthalpy parameter. The invention realizes the independent adjustment of the humidity and the temperature of the air conditioner and ensures that the air conditioner operates more stably and efficiently.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning system according to an embodiment of the present invention;
FIG. 2 is a schematic adjustment diagram of a fresh air adjusting damper or a steam adjusting damper according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a hardware operating environment of an air conditioner according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a temperature and humidity adjusting method of an air conditioner according to a first embodiment of the present invention;
FIG. 5 is a schematic view illustrating a detailed process for obtaining humidity parameters of an air conditioning system according to the present invention;
FIG. 6 is a schematic diagram of a refining process for obtaining enthalpy parameters of an air conditioning system according to the present invention;
FIG. 7 is a schematic view of a detailed flow of adjusting the opening of the fresh air adjusting damper and the opening of the steam adjusting damper according to the humidity parameter and the enthalpy parameter in the present invention;
fig. 8 is a detailed flow diagram of the invention for reducing the opening of the fresh air adjusting damper.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indications are changed accordingly.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention provides an air conditioning system, comprising:
the air return pipeline 1 is communicated with a fresh air pipeline 2 and a water vapor balance pipeline 3; the entry of new trend pipeline 2 is provided with new trend regulation air brake 4, the entry of vapor balance pipeline 3 has set gradually vapor regulation air brake 5 and aporate hydrophilic membrane 6.
As shown in fig. 1, the air conditioning system includes not only the return air duct 1, the fresh air duct 2, the vapor balance duct 3, the fresh air adjusting damper 4, the vapor adjusting damper 5, and the non-porous hydrophilic membrane 6, but also: a fresh air dry bulb sensor 7, a fresh air wet bulb sensor 8, a return air dry bulb sensor 9, a return air wet bulb sensor 10, an atmospheric pressure sensor 11, an evaporator 12, a fan 13, an air outlet pipeline 14, an indoor air supply pipeline 15 and the like. Wherein, fresh air is dried the ball sensor 7 and is used for detecting fresh air and is done the ball temperature, and fresh air wet ball sensor 8 is used for detecting fresh air and is done the ball temperature, and return air is done ball sensor 9 and is used for detecting return air and does the ball temperature futilely, and return air wet ball sensor 10 is used for detecting return air wet ball temperature, and atmospheric pressure sensor 11 is used for detecting the environment atmospheric pressure.
Specifically, the fresh air adjusting air brake 4 can adjust the fresh air flow through a rotation angle, and the water vapor adjusting air brake 5 can adjust the water vapor flow through a rotation angle. The three states of fig. 2 are respectively the full-on, partial-on and full-off states of the fresh air damper 4 or the water vapor damper 5. Through adjusting fresh air adjusting air brake 4 and vapor adjusting air brake 5, the indoor return air and the fresh air are mixed in a certain proportion, and meanwhile, the vapor of the indoor environment is increased or reduced. After indoor return air and fresh air are mixed, the temperature is reduced through heat exchange of the evaporator 12, then the air is circulated to the indoor air supply pipeline 15 through the air outlet pipeline 14, the fresh air is sent into the indoor environment, and meanwhile the temperature and the humidity of the indoor environment are adjusted.
Optionally, the non-porous hydrophilic membrane 6 is a permeable membrane.
Specifically, the non-porous hydrophilic membrane 6 is a permeable membrane which allows only water molecules to pass therethrough, and the flow direction is a direction in which the water vapor partial pressure is higher toward a side where the water vapor partial pressure is lower, that is, from a side where the moisture content is higher toward a side where the moisture content is lower. Therefore, the characteristics of the permeable membrane can be used for matching with a water vapor adjusting air brake to control the discharge and the suction of moisture. That is, when the indoor humidity is high, the opening degree of the air brake can be adjusted by adjusting the water vapor, so that the indoor moisture can be discharged to the outside; when the indoor humidity is low, the opening degree of the air brake can be adjusted by adjusting the water vapor, and the outdoor moisture can be sucked into the room.
Optionally, the outside of new air pipeline 2 is provided with new air dry-bulb sensor 7 and new air wet-bulb sensor 8, return air dry-bulb sensor 9 and return air wet-bulb sensor 10 are provided with return air pipeline 1 inboard.
Specifically, the fresh air dry bulb sensor 7 is used for detecting the fresh air dry bulb temperature, the fresh air wet bulb sensor 8 is used for detecting the fresh air wet bulb temperature, the return air dry bulb sensor 9 is used for detecting the return air dry bulb temperature, and the return air wet bulb sensor 10 is used for detecting the return air wet bulb temperature. The humidity parameter and the enthalpy parameter of the air conditioning system are calculated through the detected return air parameter, the fresh air parameter and the ambient atmospheric pressure detected by the atmospheric pressure sensor, and the opening of the fresh air adjusting air brake 4 and the opening of the water vapor adjusting air brake 5 are adjusted according to the humidity parameter and the enthalpy parameter, so that the independent adjustment of the temperature and the humidity of the indoor environment is realized.
In this embodiment, the air conditioning system includes: the return air pipeline 1 is communicated with a fresh air pipeline 2 and a water vapor balance pipeline 3. The inlet of the fresh air pipeline 2 is provided with a fresh air adjusting air brake 4, and the inlet of the water vapor balance pipeline 3 is sequentially provided with a water vapor adjusting air brake 5 and a non-porous hydrophilic membrane 6. The air conditioning system realizes independent adjustment of the humidity and the temperature, and ensures that the air conditioning system operates more stably and efficiently.
The invention also provides a method for adjusting the temperature and the humidity of the air conditioner, as shown in fig. 3, fig. 3 is a schematic diagram of a hardware operating environment of a terminal according to the embodiment of the invention;
the terminal of the embodiment of the invention is an air conditioner.
As shown in fig. 3, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard), 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 (such as a non-volatile memory, e.g., disk storage) and the memory 1005 may optionally also be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration of the terminal shown in fig. 3 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 3, the memory 1005, which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and an air conditioner temperature and humidity adjusting program.
In the terminal shown in fig. 3, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; the processor 1001 may be configured to call the air conditioner temperature and humidity adjustment program stored in the memory 1005, and perform the following operations:
acquiring humidity parameters of an air conditioning system, wherein the humidity parameters comprise return air moisture content, fresh air moisture content and indoor relative humidity;
acquiring enthalpy parameters of the air conditioning system, wherein the enthalpy parameters comprise return air enthalpy and fresh air enthalpy;
and adjusting the opening of the fresh air adjusting air brake and the opening of the water vapor adjusting air brake according to the humidity parameter and the enthalpy parameter.
Further, the processor 1001 may call the air conditioner temperature and humidity adjustment program stored in the memory 1005, and further perform the following operations:
obtaining return air parameters, wherein the return air parameters comprise return air dry-bulb temperature detected by a return air dry-bulb sensor and return air wet-bulb temperature detected by a return air wet-bulb sensor;
acquiring fresh air parameters, wherein the fresh air parameters comprise fresh air dry bulb temperature detected by a fresh air dry bulb sensor and fresh air wet bulb temperature detected by a fresh air wet bulb sensor;
acquiring the ambient atmospheric pressure of the environment where the air conditioning system is located, which is detected by an atmospheric pressure sensor;
and calculating the humidity parameter of the air conditioning system according to the return air parameter, the fresh air parameter and the ambient atmospheric pressure.
Further, the processor 1001 may call the air conditioner temperature and humidity adjustment program stored in the memory 1005, and further perform the following operations:
and calculating an enthalpy value parameter of the air conditioning system according to the humidity parameter, the return air dry-bulb temperature and the fresh air dry-bulb temperature.
Further, the processor 1001 may call the air conditioner temperature and humidity adjustment program stored in the memory 1005, and further perform the following operations:
when the moisture content of the return air is greater than the moisture content of the fresh air, the enthalpy value of the return air is greater than the enthalpy value of the fresh air and the indoor relative humidity is greater than a first preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is larger than the fresh air enthalpy value, and the indoor relative humidity is smaller than a second preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is smaller than the fresh air enthalpy value and the indoor relative humidity is smaller than the second preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is greater than the fresh air moisture content, the return air enthalpy value is less than the fresh air enthalpy value and the indoor relative humidity is greater than the first preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased, wherein the first preset relative humidity is greater than the second preset relative humidity.
Further, the processor 1001 may call the air conditioner temperature and humidity adjustment program stored in the memory 1005, and further perform the following operations:
judging whether the opening of the fresh air adjusting air brake is larger than the minimum opening of the fresh air adjusting air brake or not;
the opening degree of the fresh air adjusting air brake is larger than the minimum opening degree of the fresh air adjusting air brake, and the opening degree of the fresh air adjusting air brake is larger than the sum of the minimum opening degree of the fresh air adjusting air brake and the preset opening degree, the opening degree of the fresh air adjusting air brake is reduced by the preset opening degree.
Further, the processor 1001 may call the air conditioner temperature and humidity adjustment program stored in the memory 1005, and further perform the following operations:
and the preset opening is determined according to the return air enthalpy value and the fresh air enthalpy value.
Referring to fig. 4, in a first embodiment, the method for adjusting the temperature and humidity of the air conditioner includes:
s10, acquiring humidity parameters of the air conditioning system, wherein the humidity parameters comprise return air moisture content, fresh air moisture content and indoor relative humidity;
in this embodiment, the return air dry bulb temperature detected by the return air dry bulb sensor, the return air wet bulb temperature detected by the return air wet bulb sensor, the fresh air dry bulb temperature detected by the fresh air dry bulb sensor, the fresh air wet bulb temperature detected by the fresh air wet bulb sensor, and the ambient atmospheric pressure of the environment where the air conditioning system is located detected by the atmospheric pressure sensor are obtained, and the return air moisture content, the fresh air moisture content, and the indoor relative humidity are obtained through calculation according to the above parameters.
It should be noted that the return air dry bulb sensor and the return air wet bulb sensor are located on the inner side of the return air pipeline, the fresh air dry bulb sensor and the fresh air wet bulb sensor are located on the outer side of the fresh air pipeline, and the atmospheric pressure sensor is located on the inner side of the return air pipeline.
Specifically, the return air/fresh air moisture content can be solved according to the following formula:
wherein t and ts are respectively the temperature of the return air/fresh air dry bulb and the temperature of the return air/fresh air wet bulb, and the unit is ℃.
The relative humidity can be solved according to the following equation:
wherein d is the return air/fresh air moisture content, and d, s is the return air/fresh air moisture content solved according to the saturated vapor partial pressure under the dry bulb temperature.
S20, acquiring enthalpy parameters of the air conditioning system, wherein the enthalpy parameters comprise return air enthalpy and fresh air enthalpy;
in this embodiment, the return air dry bulb temperature detected by the return air dry bulb sensor, the return air wet bulb temperature detected by the return air wet bulb sensor, the fresh air dry bulb temperature detected by the fresh air dry bulb sensor, the fresh air wet bulb temperature detected by the fresh air wet bulb sensor, and the atmospheric pressure of the environment in which the air conditioning system is located, which are detected by the atmospheric pressure sensor, are obtained, the return air moisture content and the fresh air moisture content are obtained through calculation according to the above parameters, the return air enthalpy value is calculated according to the return air moisture content and the return air dry bulb temperature, and the fresh air enthalpy value is calculated according to the fresh air moisture content and the fresh air dry bulb temperature.
Specifically, the return air/fresh air enthalpy value can be solved according to the following formula:
H＝1.006t+d(2501+1.86t)
wherein H is the return air/fresh air enthalpy value, d is the return air/fresh air moisture content, and t is the return air/fresh air dry bulb temperature.
And S30, adjusting the opening of the fresh air adjusting air brake and the opening of the water vapor adjusting air brake according to the humidity parameter and the enthalpy parameter.
In this embodiment, when the humidity parameter is obtained, the humidity condition of the indoor environment is obtained by comparing the magnitude relationship between the return air moisture content and the fresh air moisture content and the magnitude relationship between the indoor relative humidity and the first and second preset relative humidities, where the magnitude relationship between the return air moisture content and the fresh air moisture content reflects the humidity difference between the indoor environment and the outdoor environment, and the magnitude relationship between the indoor relative humidity and the first and second preset relative humidities reflects whether the humidity of the indoor environment is in the user comfort range, so that the opening degree of the water vapor regulation air brake can be adjusted by the magnitude relationship between the return air moisture content and the fresh air moisture content and the magnitude relationship between the indoor relative humidity and the first and second preset relative humidities, thereby controlling the discharge and suction of the moisture. The water vapor regulating damper is positioned in the water vapor balance pipeline, and a non-porous hydrophilic membrane is also arranged inside the water vapor balance pipeline, is a permeable membrane and only allows water molecules to pass through, and the flowing direction is from the side with higher moisture content to the side with lower moisture content. That is, when the indoor humidity is high, the opening degree of the air brake can be adjusted by adjusting the water vapor, so that the indoor moisture can be discharged to the outside; when the indoor humidity is low, the opening degree of the air brake can be adjusted by adjusting the water vapor, and the outdoor moisture can be sucked into the room.
In this embodiment, when the enthalpy parameter is obtained, the temperature condition of the indoor environment is obtained by comparing the magnitude relationship between the return air enthalpy value and the fresh air enthalpy value, that is, the magnitude relationship between the return air enthalpy value and the fresh air enthalpy value reflects the temperature difference between the indoor environment and the outdoor environment, so that the opening degree of the fresh air adjusting damper can be adjusted through the magnitude relationship between the return air enthalpy value and the fresh air enthalpy value, and the air intake of the fresh air is controlled to adjust the indoor temperature.
In the first embodiment, a humidity parameter and an enthalpy parameter of the air conditioning system are obtained, and the opening of the fresh air adjusting air brake and the opening of the water vapor adjusting air brake are adjusted according to the humidity parameter and the enthalpy parameter. Therefore, the independent adjustment of the humidity and the temperature by the air conditioner is realized, and the air conditioner is ensured to operate more stably and efficiently.
In a second embodiment, as shown in fig. 5, on the basis of the embodiment shown in fig. 4, the step of acquiring the humidity parameter of the air conditioning system includes:
step S11, obtaining return air parameters, wherein the return air parameters comprise return air dry-bulb temperature detected by a return air dry-bulb sensor and return air wet-bulb temperature detected by a return air wet-bulb sensor;
in this embodiment, the return air dry-bulb sensor and the return air wet-bulb sensor may perform detection at regular time or in real time, and the present invention is not particularly limited.
S12, acquiring fresh air parameters, wherein the fresh air parameters comprise a fresh air dry bulb temperature detected by a fresh air dry bulb sensor and a fresh air wet bulb temperature detected by a fresh air wet bulb sensor;
in this embodiment, the fresh air dry bulb sensor and the fresh air wet bulb sensor may perform detection at regular time or in real time, and the present invention is not limited specifically.
Step S13, acquiring the ambient atmospheric pressure of the environment where the air conditioning system is located, which is detected by an atmospheric pressure sensor;
in this embodiment, the atmospheric pressure sensor may perform detection at regular time or in real time, and the present invention is not limited in particular.
And step S14, calculating the humidity parameter of the air conditioning system according to the return air parameter, the fresh air parameter and the ambient atmospheric pressure.
In this embodiment, the humidity parameters of the air conditioning system include a return air moisture content, a fresh air moisture content, and an indoor relative humidity, wherein the return air/fresh air moisture content can be solved according to the following formula:
solving the saturated water vapor partial pressure under the temperature of the return air/fresh air dry bulb according to the temperature of the return air/fresh air dry bulb:
wherein, C8＝-5.8002206×103，C9＝1.3914993，C10＝-4.8640239×10-2，C11＝4.1764768×10-5，C12＝-1.4452093×10-8，C136.5459673; t is the temperature of the return air/fresh air dry bulb, and the unit is K; pq,bIs the saturated water vapor partial pressure at the dry bulb temperature.
Solving the moisture content of the return air/fresh air according to the saturated water vapor partial pressure of the return air/fresh air dry bulb under the temperature:
wherein d and s are the return air/fresh air moisture content solved according to the saturated water vapor partial pressure at the dry bulb temperature, and B is the ambient atmospheric pressure.
Solving the saturated water vapor partial pressure under the return air/fresh air wet bulb temperature according to the return air/fresh air wet bulb temperature:
wherein, C8＝-5.8002206×103，C9＝1.3914993，C10＝-4.8640239×10-2，C11＝4.1764768×10-5，C12＝-1.4452093×10-8，C13＝6.5459673；TsThe temperature of return air/fresh air wet bulb is K; pq,bIs the saturated water vapor partial pressure at the wet bulb temperature.
Solving the moisture content of the return air/fresh air according to the saturated water vapor partial pressure under the temperature of the return air/fresh air wet bulb:
and d, s is the return air/fresh air moisture content solved according to the saturated water vapor partial pressure at the wet bulb temperature, and B is the ambient atmospheric pressure.
Solving the moisture content of return air/fresh air:
wherein t and ts are respectively the temperature of the return air/fresh air dry bulb and the temperature of the return air/fresh air wet bulb, and the unit is ℃.
The relative humidity can be solved according to the following formula:
wherein d is the return air/fresh air moisture content, and d, s is the return air/fresh air moisture content solved according to the saturated vapor partial pressure under the dry bulb temperature.
It should be noted that, in the above calculation process, solving the moisture content of the return air needs to be substituted into the return air drying and wet bulb temperature, solving the moisture content of the fresh air needs to be substituted into the fresh air drying and wet bulb temperature, and the indoor relative humidity can be calculated according to the ratio of the moisture content of the return air to the moisture content of the return air solved according to the saturated water vapor partial pressure at the dry bulb temperature.
In a second embodiment, the return air parameter, the fresh air parameter and the ambient atmospheric pressure are obtained, and the humidity parameter of the air conditioning system is calculated according to the return air parameter, the fresh air parameter and the ambient atmospheric pressure. Therefore, when the humidity parameter is obtained through calculation, the opening degree of the steam adjusting air brake can be adjusted according to the size relation between the return air moisture content and the fresh air moisture content and the indoor relative humidity, and therefore the indoor humidity can be adjusted.
In a third embodiment, as shown in fig. 6, based on the embodiments shown in fig. 4 to 5, the step of obtaining the enthalpy parameter of the air conditioning system includes:
and step S21, calculating an enthalpy parameter of the air conditioning system according to the humidity parameter, the return air dry bulb temperature and the fresh air dry bulb temperature.
In this embodiment, the enthalpy parameter of the air conditioning system includes a return air enthalpy value and a fresh air enthalpy value, wherein the return air/fresh air enthalpy value can be solved according to the following formula:
H＝1.006t+d(2501+1.86t)
wherein H is the return air/fresh air enthalpy value, d is the return air/fresh air moisture content, and t is the return air/fresh air dry bulb temperature.
It should be noted that, in the process of calculation using the above formula, the return air moisture content and the return air dry bulb temperature need to be substituted for solving the return air enthalpy value, and the fresh air moisture content and the fresh air dry bulb temperature need to be substituted for solving the fresh air enthalpy value.
In a third embodiment, an enthalpy parameter of the air conditioning system is calculated based on the humidity parameter, the return air dry bulb temperature, and the fresh air dry bulb temperature. Therefore, when the enthalpy value parameter is obtained through calculation, the opening degree of the fresh air adjusting air brake can be adjusted according to the size relation between the return air enthalpy value and the fresh air enthalpy value, and therefore the indoor temperature can be adjusted.
In a fourth embodiment, as shown in fig. 7, in addition to the embodiments shown in fig. 4 to 6, the step of adjusting the opening degree of the fresh air damper and the opening degree of the water vapor damper according to the humidity parameter and the enthalpy parameter includes:
step S31, when the return air moisture content is greater than the fresh air moisture content, the return air enthalpy value is greater than the fresh air enthalpy value and the indoor relative humidity is greater than a first preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
in this embodiment, the first predetermined relative humidity is an upper limit of a comfortable range of human body humidity, which is determined through a large number of experiments.
When the moisture content of the return air is larger than the moisture content of the fresh air, the indoor humidity is higher than the outdoor humidity, the indoor relative humidity is larger than the first preset relative humidity, the indoor humidity is beyond the humidity comfortable range of a human body, and the opening degree of the steam adjusting air brake is increased. The steam balance duct is provided with a steam adjustment damper and a non-porous hydrophilic membrane, wherein the non-porous hydrophilic membrane is a permeable membrane through which only water molecules can pass and the flow direction of the water molecules is from the side with higher moisture content to the side with lower moisture content, so that the opening degree of the steam adjustment damper is increased to enable the redundant moisture to be discharged from the room as soon as possible.
When the return air enthalpy value is greater than the fresh air enthalpy value, the indoor temperature is higher than the outdoor temperature, and at the moment, the opening of the fresh air adjusting air brake is increased to enable more outdoor fresh air to enter the room, so that the indoor temperature is reduced.
Step S32, when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is larger than the fresh air enthalpy value and the indoor relative humidity is smaller than a second preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
in this embodiment, the second predetermined relative humidity is a lower limit of a comfortable range of human body humidity, which is determined by a lot of experiments.
When the moisture content of the return air is smaller than the moisture content of the fresh air, the indoor humidity is lower than the outdoor humidity, the indoor relative humidity is smaller than the second preset relative humidity, the indoor humidity is lower than the humidity comfort range of a human body, and at the moment, the opening degree of the steam adjusting air brake is increased, so that the moisture enters the room as soon as possible, and the indoor humidity is balanced.
When the return air enthalpy value is greater than the fresh air enthalpy value, the indoor temperature is higher than the outdoor temperature, and at the moment, the opening of the fresh air adjusting air brake is increased to enable more outdoor fresh air to enter the room, so that the indoor temperature is reduced.
Step S33, when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is smaller than the fresh air enthalpy value and the indoor relative humidity is smaller than the second preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased;
in this embodiment, when the moisture content of the return air is smaller than the moisture content of the fresh air, it indicates that the indoor humidity is lower than the outdoor humidity, and the indoor relative humidity is smaller than the second preset relative humidity, which indicates that the indoor humidity is already lower than the humidity comfort range of the human body, at this time, the opening degree of the steam adjusting damper is increased, so that the moisture enters the room as soon as possible, and the indoor humidity is balanced.
When the return air enthalpy value is smaller than the fresh air enthalpy value, the indoor temperature is lower than the outdoor temperature, and the opening of the air brake is adjusted to be small so as to prevent the outdoor fresh air from entering the room to reduce the indoor temperature.
And S34, when the return air moisture content is greater than the fresh air moisture content, the return air enthalpy value is less than the fresh air enthalpy value and the indoor relative humidity is greater than the first preset relative humidity, reducing the opening degree of the fresh air adjusting air brake and increasing the opening degree of the water vapor adjusting air brake, wherein the first preset relative humidity is greater than the second preset relative humidity.
In this embodiment, when the moisture content of the return air is greater than the moisture content of the fresh air, it is indicated that the indoor humidity is higher than the outdoor humidity, and the indoor relative humidity is greater than the first preset relative humidity, which indicates that the indoor humidity is beyond the humidity comfortable range of the human body, at this time, the opening degree of the steam adjusting damper is increased, so that the redundant moisture is discharged from the room as soon as possible.
When the return air enthalpy value is smaller than the fresh air enthalpy value, the indoor temperature is lower than the outdoor temperature, and the opening of the air brake is adjusted to be small so as to prevent the outdoor fresh air from entering the room to reduce the indoor temperature.
It should be noted that the opening of the fresh air adjusting damper and the opening of the steam adjusting damper can be adjusted according to the humidity parameter and the enthalpy parameter, and can be set according to the actual situation.
In the fourth embodiment, the opening degree of the fresh air adjusting air brake and the opening degree of the steam adjusting air brake are adjusted according to the magnitude relations of the return air moisture content and the fresh air moisture content, the return air enthalpy value and the fresh air enthalpy value, the indoor relative humidity and the first preset relative humidity, and the indoor relative humidity and the second preset relative humidity. Like this, adjust the aperture of air brake and the aperture of vapor regulation air brake through adjusting the new trend, the indoor humiture of control is at the comfortable within range of people's body temperature humidity to improve user's experience.
In a fifth embodiment, as shown in fig. 8, on the basis of the embodiments shown in fig. 4 to 7, the step of reducing the opening degree of the fresh air adjusting damper includes:
step S40, judging whether the opening of the fresh air adjusting air brake is larger than the minimum opening of the fresh air adjusting air brake;
and S50, when the opening degree of the fresh air adjusting air brake is greater than the minimum opening degree of the fresh air adjusting air brake and the opening degree of the fresh air adjusting air brake is greater than the sum of the minimum opening degree of the fresh air adjusting air brake and a preset opening degree, the opening degree of the fresh air adjusting air brake is reduced by the preset opening degree.
In this embodiment, the minimum opening of the fresh air regulation damper is related to the minimum indoor demand of fresh air, and the specific value of the minimum opening of the fresh air regulation damper can be set according to actual conditions. The preset opening degree is an opening degree between the minimum opening degree and 90 degrees, and may be 5 degrees. Specifically, the preset opening degree may be calculated using the following formula:
preset opening degree ═ max {5, (k ＊ | H)1-H2|)}
Wherein k is a proportionality coefficient, H1、H2Fresh air enthalpy value and return air enthalpy value respectively, it is noted that k ＊ | H1-H2The operation result of | should be between 5 degrees and 20 degrees, so the K value can be limited according to the range of the preset opening degree.
When the opening of the fresh air adjusting damper is larger than the minimum opening of the fresh air adjusting damper and larger than the sum of the minimum opening and the preset opening of the fresh air adjusting damper, the opening of the fresh air adjusting damper is reduced by the preset opening, so that the fresh air intake is accurately controlled; and when the opening degree of the fresh air adjusting air brake is greater than the minimum opening degree of the fresh air adjusting air brake but less than the sum of the minimum opening degree of the fresh air adjusting air brake and the preset opening degree, the opening degree of the fresh air adjusting air brake is adjusted to be the minimum opening degree.
In a fifth embodiment, it is first determined whether the opening of the fresh air damper is greater than the minimum opening of the fresh air damper, and when the opening of the fresh air damper is not only greater than the minimum opening of the fresh air damper but also greater than the sum of the minimum opening and the preset opening of the fresh air damper, the opening of the fresh air damper is decreased by the preset opening. Therefore, the air brake can be adjusted more accurately and sensitively by fresh air adjustment.
The invention also provides an air conditioner, which comprises an air conditioner temperature and humidity adjusting program configured to implement the steps of the air conditioner temperature and humidity adjusting method under the condition that the control device of the air conditioner is an execution main body.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a television, a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The air conditioning system is characterized by comprising a return air pipeline, wherein the return air pipeline is communicated with a fresh air pipeline and a water vapor balance pipeline; the entry of new trend pipeline is provided with fresh air adjusting air brake, the entry of vapor balance pipeline has set gradually vapor adjusting air brake and nonporous hydrophilic membrane, wherein, the aperture of fresh air adjusting air brake and the aperture of vapor adjusting air brake are confirmed according to air conditioning system's enthalpy value parameter and humidity parameter regulation, the humidity parameter includes return air moisture content, new trend moisture content and indoor relative humidity, the enthalpy value parameter includes return air enthalpy value and new trend enthalpy value.
2. The air conditioning system of claim 1, wherein the non-porous, hydrophilic membrane is a permeable membrane.
3. The air conditioning system as claimed in claim 1 or 2, wherein a fresh air dry bulb sensor and a fresh air wet bulb sensor are arranged on the outer side of the fresh air pipeline, and a return air dry bulb sensor and a return air wet bulb sensor are arranged on the inner side of the return air pipeline.
4. A method for adjusting the temperature and the humidity of an air conditioner is characterized by comprising the following steps:
acquiring humidity parameters of an air conditioning system, wherein the humidity parameters comprise return air moisture content, fresh air moisture content and indoor relative humidity;
acquiring enthalpy parameters of the air conditioning system, wherein the enthalpy parameters comprise return air enthalpy and fresh air enthalpy;
and adjusting the opening of the fresh air adjusting air brake and the opening of the water vapor adjusting air brake according to the humidity parameter and the enthalpy parameter.
5. The method for adjusting the temperature and humidity of an air conditioner according to claim 4, wherein the step of obtaining the humidity parameter of the air conditioning system comprises:
obtaining return air parameters, wherein the return air parameters comprise return air dry-bulb temperature detected by a return air dry-bulb sensor and return air wet-bulb temperature detected by a return air wet-bulb sensor;
acquiring fresh air parameters, wherein the fresh air parameters comprise fresh air dry bulb temperature detected by a fresh air dry bulb sensor and fresh air wet bulb temperature detected by a fresh air wet bulb sensor;
acquiring the ambient atmospheric pressure of the environment where the air conditioning system is located, which is detected by an atmospheric pressure sensor;
and calculating the humidity parameter of the air conditioning system according to the return air parameter, the fresh air parameter and the ambient atmospheric pressure.
6. The method for adjusting the temperature and humidity of an air conditioner according to claim 5, wherein the step of obtaining the enthalpy parameter of the air conditioning system comprises:
and calculating an enthalpy value parameter of the air conditioning system according to the humidity parameter, the return air dry-bulb temperature and the fresh air dry-bulb temperature.
7. The method for adjusting the temperature and humidity of an air conditioner according to claim 4, wherein the step of adjusting the opening degree of the fresh air adjusting damper and the opening degree of the water vapor adjusting damper according to the humidity parameter and the enthalpy parameter comprises:
when the moisture content of the return air is greater than the moisture content of the fresh air, the enthalpy value of the return air is greater than the enthalpy value of the fresh air and the indoor relative humidity is greater than a first preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is larger than the fresh air enthalpy value, and the indoor relative humidity is smaller than a second preset relative humidity, the opening degree of the fresh air adjusting air brake is increased, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is smaller than the fresh air moisture content, the return air enthalpy value is smaller than the fresh air enthalpy value and the indoor relative humidity is smaller than the second preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased;
when the return air moisture content is greater than the fresh air moisture content, the return air enthalpy value is less than the fresh air enthalpy value and the indoor relative humidity is greater than the first preset relative humidity, the opening degree of the fresh air adjusting air brake is reduced, and the opening degree of the water vapor adjusting air brake is increased, wherein the first preset relative humidity is greater than the second preset relative humidity.
8. The method for adjusting the temperature and humidity of an air conditioner according to claim 7, wherein the step of reducing the opening of the fresh air damper comprises:
judging whether the opening of the fresh air adjusting air brake is larger than the minimum opening of the fresh air adjusting air brake or not;
the opening degree of the fresh air adjusting air brake is larger than the minimum opening degree of the fresh air adjusting air brake, and the opening degree of the fresh air adjusting air brake is larger than the sum of the minimum opening degree of the fresh air adjusting air brake and the preset opening degree, the opening degree of the fresh air adjusting air brake is reduced by the preset opening degree.
9. The method of claim 8, wherein the predetermined opening is determined based on the return air enthalpy and the fresh air enthalpy.
10. An air conditioner, characterized in that the air conditioner comprises a memory, a processor and an air conditioner temperature and humidity adjusting program stored in the memory and operable on the processor, wherein the air conditioner temperature and humidity adjusting program is executed by the processor to implement the steps of the air conditioner temperature and humidity adjusting method according to any one of claims 4 to 9.
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