CN114087734A - Control method, device and equipment of air conditioning system and storage medium - Google Patents
Control method, device and equipment of air conditioning system and storage medium Download PDFInfo
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- CN114087734A CN114087734A CN202111410169.0A CN202111410169A CN114087734A CN 114087734 A CN114087734 A CN 114087734A CN 202111410169 A CN202111410169 A CN 202111410169A CN 114087734 A CN114087734 A CN 114087734A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 111
- 238000000034 method Methods 0.000 title claims abstract description 58
- 238000010438 heat treatment Methods 0.000 claims abstract description 44
- 238000007791 dehumidification Methods 0.000 claims abstract description 28
- 238000003303 reheating Methods 0.000 claims abstract description 24
- 230000000694 effects Effects 0.000 abstract description 11
- 230000005855 radiation Effects 0.000 description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000009833 condensation Methods 0.000 description 12
- 230000005494 condensation Effects 0.000 description 12
- 238000001704 evaporation Methods 0.000 description 12
- 230000008020 evaporation Effects 0.000 description 12
- 238000013461 design Methods 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 238000005057 refrigeration Methods 0.000 description 8
- 230000003247 decreasing effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- 238000004659 sterilization and disinfection Methods 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000001954 sterilising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0003—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station characterised by a split arrangement, wherein parts of the air-conditioning system, e.g. evaporator and condenser, are in separately located 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the 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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/08—Compressors specially adapted for separate outdoor units
- F24F1/10—Arrangement or mounting thereof
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/14—Heat exchangers specially adapted for separate outdoor units
- F24F1/16—Arrangement or mounting thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
- F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
-
- 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
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- 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)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control method, a control device, control equipment and a storage medium of an air conditioning system, and belongs to the technical field of air conditioners. According to the invention, when the first heat exchange system is in a dehumidification reheating mode, the current air outlet temperature of an indoor unit of the air conditioning system is obtained; when the current air outlet temperature is lower than the first preset air outlet temperature, the second heat exchange system is controlled to heat, and the heating effect of the whole air conditioning system is improved through the linkage of the first heat exchange system and the second heat exchange system.
Description
Technical Field
The present invention relates to the field of air conditioner technologies, and in particular, to a method, an apparatus, a device, and a storage medium for controlling an air conditioning system.
Background
In a radiation air-conditioning system, cold water and hot water are prepared by a heat pump host, are conveyed to an indoor ceiling or floor water pipe, and then exchange heat with the indoor in a radiation heat exchange and natural convection heat exchange mode; and the fresh air and the indoor air are pretreated through the fresh air system, so that the temperature and humidity control is realized, and the purposes of comfort and health are achieved. The indoor unit in the fresh air system adopts an independent indoor unit with a cold source, precools, dehumidifies and reheats fresh air, and then sends the fresh air into a room to eliminate indoor wet load.
When the indoor set dehumidifies, if outdoor environment temperature is lower, then the new trend is not enough again the heat, and the air-out temperature is low to because indoor set and radiation system take the control of not linkage among the prior art, can lead to whole air conditioning system's heating effect relatively poor because of the dehumidification like this.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a control method, a control device, control equipment and a storage medium of an air conditioning system, and aims to solve the technical problem that the heating effect of the whole air conditioning system is poor due to dehumidification of an indoor unit when the outdoor temperature is low in the prior art.
In order to achieve the above object, the present invention provides a control method of an air conditioner system, the air conditioner system includes a first heat exchange system and a second heat exchange system; the control method comprises the following steps:
when the first heat exchange system is in a dehumidification reheating mode, acquiring the current air outlet temperature of an indoor unit of the air conditioning system; and
and when the current air outlet temperature is lower than a first preset air outlet temperature, controlling the second heat exchange system to perform heating operation.
Optionally, the air conditioning system includes an outdoor unit of an air conditioner, the first heat exchange system includes a first compressor, a first throttling element, a second throttling element, a first outdoor heat exchanger, a first indoor heat exchanger, and a second indoor heat exchanger, the first compressor, the first outdoor heat exchanger, the first throttling element, the first indoor heat exchanger, the second throttling element, and the second indoor heat exchanger are sequentially arranged in series, the indoor unit includes a first indoor heat exchanger, a second indoor heat exchanger, and a fresh air fan, the outdoor unit of the air conditioner includes the first compressor, the first outdoor heat exchanger, and a first outdoor fan for dissipating heat from the first outdoor heat exchanger, and the control method further includes:
and when the current air outlet temperature is greater than or equal to a first preset air outlet temperature and is less than a second preset air outlet temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan and the rotating speed of the first outdoor fan is reduced.
Optionally, the control method further includes:
acquiring the current indoor temperature;
comparing the current indoor temperature with a preset indoor temperature; and
and adjusting the running state of the air conditioning system according to the comparison result.
Optionally, the air conditioning system includes an air conditioning outdoor unit, the first heat exchange system includes a first compressor, a first throttling element, a second throttling element, a first outdoor heat exchanger, a first indoor heat exchanger and a second indoor heat exchanger, the first compressor, the first outdoor heat exchanger, the first throttling element, the first indoor heat exchanger, the second throttling element and the second indoor heat exchanger are sequentially arranged in series, the indoor unit includes a first indoor heat exchanger, a second indoor heat exchanger and a fresh air fan, the second heat exchange system includes a second compressor, a second outdoor heat exchanger, a third throttling element and a third indoor heat exchanger, the air conditioning outdoor unit includes the first compressor, the first outdoor heat exchanger, the second compressor and the second outdoor heat exchanger and a first outdoor fan for supplying the first outdoor heat exchanger, the adjusting the operation state of the air conditioning system according to the comparison result comprises the following steps:
when the current indoor temperature is lower than the preset indoor temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan, the rotating speed of the first outdoor fan, the rotating speed of the second compressor and the opening degree of the third throttling element is reduced.
Optionally, the outdoor unit of the air conditioner further includes a second outdoor fan configured to radiate heat to the second outdoor heat exchanger, and the adjusting the operation state of the air conditioning system according to the comparison result includes:
when the current indoor temperature is lower than the preset indoor temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan, the rotating speed of the first outdoor fan, the rotating speed of the second compressor and the opening degree of the third throttling element is reduced.
Optionally, the first outdoor fan is further configured to dissipate heat of the second outdoor heat exchanger.
Optionally, the adjusting the operation state of the air conditioning system according to the comparison result includes:
and when the current indoor temperature is greater than or equal to the preset indoor temperature, at least one of increasing the opening degree of the second throttling element, reducing the rotating speed of the second compressor, increasing the rotating speed of the first outdoor fan and closing the second heat exchange system.
In addition, in order to achieve the above object, the present invention further provides a control device of an air conditioning system, wherein the air conditioning system comprises a first heat exchange system and a second heat exchange system; the control device includes:
the obtaining module is used for obtaining the current air outlet temperature of an indoor unit of the air conditioning system when the first heat exchange system is in a dehumidification reheating mode; and
and the control module is used for controlling the second heat exchange system to perform heating operation when the current air outlet temperature is less than a first preset air outlet temperature.
Further, to achieve the above object, the present invention also proposes a control device of an air conditioning system, including: the control method comprises the steps of storing a control program of the air conditioning system, wherein the control program of the air conditioning system is stored in the memory and can run on the processor, and the control program of the air conditioning system is configured to realize the control method of the air conditioning system.
In addition, in order to achieve the above object, the present invention further provides a storage medium having a control program of an air conditioning system stored thereon, which when executed by a processor, implements the control method of the air conditioning system as described above.
According to the invention, when the first heat exchange system is in a dehumidification reheating mode, the current air outlet temperature of an indoor unit of the air conditioning system is obtained; when the current air outlet temperature is lower than the first preset air outlet temperature, the second heat exchange system is controlled to heat, and the first heat exchange system is linked with the second heat exchange system, so that the heating effect of the whole air conditioning system is improved.
Drawings
Description of reference numerals:
| 100 | indoor machine | 24 | A |
| 200 | Second outdoor unit of |
25 | First |
| 300 | Heat |
26 | |
| 400 | First outdoor unit of |
500 | Shared air conditioner outdoor unit |
| 11 | |
27 | Second four- |
| 12 | Second |
28 | Second |
| 13 | First |
29 | Third current-regulating |
| 21 | |
31 | Third |
| 22 | First four- |
15 | Second |
| 23 | First |
40 | Shared air conditioner |
| 14 | Second throttling element |
Fig. 1 is a schematic structural diagram of a control device of an air conditioning system in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating a control method of an air conditioning system according to a first embodiment of the present invention;
FIG. 3 is a schematic structural diagram of an indoor unit and a heat pump host in an independent design according to an embodiment of a control method of an air conditioning system of the present invention;
FIG. 4 is a schematic structural diagram of an integrated design of an indoor unit and a heat pump host according to an embodiment of the control method of the air conditioning system of the present invention;
FIG. 5 is a flowchart illustrating a control method of an air conditioning system according to a second embodiment of the present invention;
FIG. 6 is a flowchart illustrating a control method of an air conditioning system according to a third embodiment of the present invention;
fig. 7 is a block diagram showing the configuration of the control device of the air conditioning system according to the first embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a control device of an air conditioning system in a hardware operating environment according to an embodiment of the present invention.
As shown in fig. 1, the control apparatus of the air conditioning system may include: a processor 1001, such as a Central Processing Unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. 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 (e.g., a Wireless-Fidelity (Wi-Fi) interface). The Memory 1005 may be a Random Access Memory (RAM) Memory, or may be a Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the configuration shown in fig. 1 does not constitute a limitation of the control device of the air conditioning system and may include more or fewer components than those shown, or some components in combination, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is one type of storage medium, may include therein an operating system, a network communication module, a user interface module, and a control program of an air conditioning system.
In the control device of the air conditioning system shown in fig. 1, the network interface 1004 is mainly used for data communication with a network server; the user interface 1003 is mainly used for data interaction with a user; the processor 1001 and the memory 1005 in the control device of the air conditioning system of the present invention may be provided in the control device of the air conditioning system, which calls the control program of the air conditioning system stored in the memory 1005 through the processor 1001 and executes the control method of the air conditioning system provided by the embodiment of the present invention.
An embodiment of the present invention provides a control method for an air conditioning system, and referring to fig. 2, fig. 2 is a schematic flowchart of a first embodiment of the control method for the air conditioning system according to the present invention.
In this embodiment, the control method of the air conditioning system includes the following steps:
step S10: and when the first heat exchange system is in a dehumidification reheating mode, acquiring the current air outlet temperature of an indoor unit of the air conditioning system.
In this embodiment, the execution main body of this embodiment may be a control device of an air conditioning system, the control device of the air conditioning system may be an electronic device such as a personal computer or a server, or may be another controller capable of achieving the same or similar functions.
It should be noted that the control method of the air conditioning system in this embodiment is applied to an air conditioning system, where the air conditioning system includes a first heat exchange system and a second heat exchange system, the first heat exchange system may include an indoor unit, and the second heat exchange system may include a heat pump host. The heat pump main machine is used for preparing cold water and hot water, conveying the cold water to an indoor ceiling or floor water pipe, and then exchanging heat with the indoor in a radiation heat exchange and natural convection heat exchange mode, an indoor machine in the air conditioning system can enable indoor air to circulate, on one hand, dirty indoor air is discharged outdoors, on the other hand, outdoor fresh air is input indoors after measures such as sterilization, disinfection, filtration and the like, and the air in the room is fresh and clean air at all times.
Further, the first heat exchange system and the second heat exchange system in this embodiment may be designed independently, or may be designed integrally. The first heat exchange system is formed by connecting a first compressor 21, a first four-way valve 22, a first outdoor heat exchanger 23, a first throttling element 24, a first indoor heat exchanger 13, a second throttling element 14 and a second indoor heat exchanger 12 in series, and forms a refrigerant loop of the indoor unit. The indoor unit 100 is an indoor part corresponding to the first heat exchange system, and is provided with a fresh air blower 11, and specifically, the indoor unit 100 includes a first indoor heat exchanger 13, a fresh air blower 11, and a second indoor heat exchanger 12. The second heat exchange system is formed by connecting a second compressor 26, a second four-way valve 27, a second outdoor heat exchanger 28, a third throttling element 29 and a third indoor heat exchanger in series, and forms a refrigerant circuit of the heat pump main machine. The heat pump radiation end 300 is an indoor portion corresponding to the second heat exchange system, and specifically, the heat pump radiation end 300 includes the third indoor heat exchanger 31 and a radiation pipeline.
When the first heat exchange system and the second heat exchange system are designed independently, the specific structure is shown in fig. 3, for example. In fig. 3, the outdoor part of the first heat exchange system and the outdoor part of the second heat exchange system are respectively disposed in different outdoor units, and each of the outdoor units has an independent outdoor fan. The first heat exchange system is disposed in the first outdoor unit 400, and the corresponding outdoor fan is the first outdoor fan 25. The second heat exchange system is arranged in the second air-conditioning outdoor unit, and the corresponding outdoor fan is a second outdoor fan 15.
When the first heat exchange system and the second heat exchange system adopt an integrated design, the structure is as shown in fig. 4. In fig. 4, the outdoor portion of the first heat exchange system and the outdoor portion of the second heat exchange system are disposed in the same outdoor unit, i.e., the common outdoor unit 500, and share one outdoor fan, i.e., the common outdoor unit 40, and the outdoor unit 40 can be used to radiate heat to the first outdoor heat exchanger 13 and the second outdoor heat exchanger 12. Further, the common outdoor unit 40 may be provided in one or more than one, and may be provided according to actual situations, which is not limited in this embodiment.
It should be noted that fig. 3 and 4 only differ in the integrated design of the outdoor unit and the stand-alone design, and the control principle of the air conditioning system having the two different designs is the same as the internal structure of the indoor unit and the internal structure of the heat pump unit. Wherein, second indoor heat exchanger 12 is used as the evaporimeter for dehumidify the new trend, and first indoor heat exchanger 13 is used for heating the new trend, and the new trend when realizing dehumidifying and heating is reheated.
Further, a heating operation process of the air conditioning system is described by taking fig. 3 as an example. When heating operation is carried out, the exhaust gas of the first compressor 21 of the first heat exchange system enters the second indoor heat exchanger 12 and the first indoor heat exchanger 13 for condensation, the second throttling element 14 does not throttle, and then the exhaust gas passes through the first throttling element 24 for throttling and pressure reduction, enters the first outdoor heat exchanger 23 for evaporation and heat absorption, and the heating cycle is completed; the second compressor 26 of the second heat exchange system exhausts gas and enters the third indoor heat exchanger 31 for condensation, throttles and reduces the pressure through the third throttling element 29, enters the second outdoor heat exchanger 28 for evaporation and heat absorption, and the heating cycle is completed.
Further, the air conditioning system in this embodiment can also realize refrigeration operation, during the refrigeration operation, the first compressor 21 of the first heat exchange system exhausts air to enter the first outdoor heat exchanger 23 for condensation, and then enters the second indoor heat exchanger 12 for heat absorption after throttling and depressurizing by the first throttling element 24, and the second throttling element 14 is opened without throttling and enters the first indoor heat exchanger 13 for evaporation and heat absorption, thereby completing the refrigeration cycle; the second compressor 26 of the second heat exchange system exhausts gas and enters a second outdoor heat exchanger 28 for condensation, and the gas is throttled and decompressed by a third throttling element 29 and then enters a third indoor heat exchanger 31 for absorbing heat, so that the refrigeration cycle is completed; the indoor unit 100 dehumidifies and cools the indoor air to be low evaporation temperature (any value between 3 ℃ and 15 ℃), the heat pump radiation end 300 cools the indoor air only, and the water side heat exchanger is high evaporation temperature (any value between 10 ℃ and 20 ℃). The heating and cooling processes in fig. 3 and fig. 4 are the same, and are not described again in this embodiment.
Further, when the first heat exchange system operates in the dehumidification reheating mode, the exhaust gas of the first compressor 21 of the first heat exchange system enters the first outdoor heat exchanger 23 for condensation, does not work (is opened or bypassed) through the first throttling element 24, enters the first indoor heat exchanger 13 for condensation (reheating), throttles and reduces the pressure (works) through the second throttling element 14, enters the second indoor heat exchanger 12 for evaporation and heat absorption, and completes the dehumidification reheating cycle. When the first heat exchange system operates in the dehumidification reheating mode, the second heat exchange system can be in a heating operation state or a closed state.
It should be noted that, after the dehumidification is reheated and opened, the indoor unit dehumidifies the indoor environment, and when the indoor unit dehumidifies, if the outdoor environment temperature is lower, the outlet air temperature of the indoor unit at this time will also be lower, which will affect the heating effect of the air conditioning system.
Step S20: and when the current air outlet temperature is lower than a first preset air outlet temperature, controlling the second heat exchange system to perform heating operation.
It should be noted that, the change of the outdoor environment temperature also affects the outlet air temperature of the indoor unit, for example, when the outdoor environment temperature is reduced, the outlet air temperature of the indoor unit also decreases, and in this embodiment, whether the outlet air temperature of the indoor unit is lower is determined by the first preset outlet air temperature. The first preset outlet air temperature is a certain value or range between 10 ℃ and 55 ℃, for example, the first preset outlet air temperature may be set to 11 ℃, or may be set to 11 ℃ to 12 ℃, and may be adjusted accordingly according to the actual needs of the user, which is not limited in this embodiment.
When the current air outlet temperature is lower than a first preset air outlet temperature, the first heat exchange system is kept to operate in a dehumidification reheating mode. When the current air-out temperature is less than a first preset air-out temperature, the second heat exchange system is controlled to heat and operate, and the method can be understood as follows: if the second heat exchange system is in a closed state when the first heat exchange system is in a dehumidification and reheating mode, controlling the second heat exchange system to be started and to perform heating operation; and if the second heat exchange system is in an opening state when the first heat exchange system is in the dehumidification reheating mode, controlling the second heat exchange system to keep heating operation.
In concrete the realization, under the dehumidification reheat mode, indoor chance dehumidifies and the heating operation, if present air-out temperature is less than first preset air-out temperature, can control second heat transfer system and first heat transfer system in this embodiment and carry out the linkage, takes the mode of heating jointly to guarantee air conditioning system's heating effect.
In the embodiment, when the first heat exchange system is in a dehumidification reheating mode, the current air outlet temperature of an indoor unit of the air conditioning system is obtained; when the current air outlet temperature is lower than the first preset air outlet temperature, the second heat exchange system is controlled to heat, and the first heat exchange system is linked with the second heat exchange system, so that the heating effect of the whole air conditioning system is improved.
Referring to fig. 3, fig. 3 is a flowchart illustrating a control method according to a second embodiment of the present invention.
Based on the first embodiment, after step S20, the control method of this embodiment further includes:
step S30: and when the current air outlet temperature is greater than or equal to a first preset air outlet temperature and is less than a second preset air outlet temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan and the rotating speed of the first outdoor fan is reduced.
It should be noted that, when the outlet air temperature of the indoor unit is less than the first preset outlet air temperature, the first heat exchange system and the second heat exchange system are linked to heat together in this embodiment, and when the current outlet air temperature is greater than or equal to the first preset outlet air temperature and the current outlet air temperature is less than the second preset outlet air temperature, the first heat exchange system and the second heat exchange system do not need to be linked together in this embodiment, and the indoor unit is controlled to dehumidify and reheat the fresh air. The second preset outlet air temperature may also be a certain value or range between 10 ℃ and 55 ℃, for example, the second preset outlet air temperature may be set to 15 ℃, or may also be set to 15 ℃ to 16 ℃, and it should be emphasized that the second preset outlet air temperature set in this embodiment is greater than the first preset outlet air temperature, and specifically, the setting of the temperature value may be adjusted accordingly according to the actual needs of the user, which is not limited in this embodiment.
In specific implementation, if the second heat exchange system is in a heating operation state, the second heat exchange system that has started to perform heating operation may be first closed, and after the second heat exchange system is closed, in this embodiment, when the indoor unit dehumidifies and reheats the fresh air, in order to better adjust the outlet air temperature of the indoor unit so that the outlet air temperature is in the target temperature range, the following three ways may be adopted in this embodiment. The first method is as follows: the opening degree of the second throttling element 14 shown in fig. 3 or 4 is reduced. The second method comprises the following steps: the rotation speed of the fresh air fan 11 shown in fig. 3 or fig. 4 is reduced. The third method comprises the following steps: and reducing the rotating speed of the outdoor fan. It should be emphasized that the above three modes can be arbitrarily selected and combined according to practical situations, which is not limited in this embodiment.
In a specific implementation, if the indoor unit and the heat pump host are designed separately, as shown in fig. 3, when the rotation speed of the outdoor fan is reduced, the rotation speed of the first outdoor fan 25 is reduced, and the rotation speed of the second outdoor fan 15 is not adjusted. Further, if the indoor unit and the heat pump main unit are designed integrally, as shown in fig. 4, when the rotation speed of the outdoor fan is reduced, the rotation speed of the common outdoor fan 40 is reduced in this embodiment.
This embodiment is in present air-out temperature more than or equal to first air-out temperature of predetermineeing just when present air-out temperature is less than the second air-out temperature of predetermineeing, reduces second throttling element's aperture, reduction the rotational speed of new trend fan, improvement at least one in the rotational speed of first outdoor fan takes the air-out temperature of multiple different modes regulation indoor set, has guaranteed air conditioning system's heating effect.
Referring to fig. 4, fig. 4 is a flowchart illustrating a control method according to a third embodiment of the present invention.
A third embodiment of a control method of the present invention is proposed based on the first embodiment or the second embodiment described above.
Taking the first embodiment as an example, in this embodiment, the step S20 is followed by:
step S40: and acquiring the current indoor temperature.
It should be noted that, after the outlet air temperature of the indoor unit is raised, the change of the outlet air temperature of the indoor unit also directly affects the change of the indoor environment temperature, and it is easy to understand that, after the temperature of the indoor unit is raised, the indoor environment temperature also rises, when the indoor environment temperature reaches a certain temperature, the indoor unit does not need to continue raising the temperature, because the excessively high indoor environment temperature also makes the user feel uncomfortable.
In specific implementation, in this embodiment, the current indoor temperature may be obtained based on an obtaining instruction input by a user, or a preset time may be set, and after the indoor unit reheats the fresh air for a period of time, the current indoor temperature is obtained again, and a specific manner may be selected accordingly according to an actual requirement, which is not limited in this embodiment.
Step S50: and comparing the current indoor temperature with a preset indoor temperature.
Step S60: and adjusting the running state of the air conditioning system according to the comparison result.
In specific implementation, in this embodiment, the current indoor temperature is compared with a preset indoor temperature, and whether the indoor temperature meets the heating requirement of the user is determined through the comparison, where the preset indoor temperature may be set to 20 ℃ or 20 to 23 ℃, and may also be adjusted accordingly according to the actual requirement of the user, which is not limited in this embodiment.
Further, when the indoor environment is smaller than the preset indoor temperature through comparison, it indicates that the indoor temperature at this time has not reached the user requirement, in this case, adjusting the operating state of the air conditioning system in this embodiment may adopt at least one of six manners of decreasing the opening degree of the second throttling element 14, decreasing the rotation speed of the fresh air fan 11, decreasing the rotation speed of the first outdoor fan 25, increasing the rotation speed of the second outdoor fan, increasing the rotation speed of the second compressor 26, and decreasing the opening degree of the third throttling element.
Further, in the case of the independent design, when the indoor environment is lower than the preset indoor temperature in the present embodiment, the rotation speed of the second outdoor fan 15 shown in fig. 3 may also be increased.
Further, when the indoor environment is greater than the preset indoor temperature through the comparison, it indicates that the indoor temperature at this time has reached the user requirement, in this case, the manner adopted in the present embodiment includes increasing the opening degree of the second throttling element 14, increasing the rotation speed of the first outdoor fan 25, and decreasing the rotation speed of the second outdoor fan 15, decreasing the rotation speed of the second compressor 26, increasing the opening degree of the third throttling element 29, and turning off the second heat exchange system, which may be arbitrarily selected and combined, and this is not limited in the present embodiment.
The embodiment acquires the current indoor temperature; comparing the current indoor temperature with a preset indoor temperature; and adjusting the running state of the air conditioning system according to the comparison result, so that the indoor temperature of the air conditioning system can be better improved, and the user experience is improved.
Furthermore, an embodiment of the present invention further provides a storage medium, where a control program of an air conditioning system is stored, and the control program of the air conditioning system, when executed by a processor, implements the steps of the control method of the air conditioning system as described above.
Since the storage medium adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.
Referring to fig. 5, fig. 5 is a block diagram of a control device according to a first embodiment of the present invention.
As shown in fig. 5, the control device according to the embodiment of the present invention includes:
the obtaining module 10 is configured to obtain a current air outlet temperature of an indoor unit of the air conditioning system when the first heat exchange system is in a dehumidification reheating mode.
The execution subject of this embodiment may be a control device of an air conditioning system, the control device of the air conditioning system may be an electronic device such as a personal computer or a server, or may be another controller capable of implementing the same or similar functions.
It should be noted that the control method of the air conditioning system in this embodiment is applied to an air conditioning system, where the air conditioning system includes a first heat exchange system and a second heat exchange system, the first heat exchange system may include an indoor unit, and the second heat exchange system may include a heat pump host. The heat pump main machine is used for preparing cold water and hot water, conveying the cold water to an indoor ceiling or floor water pipe, and then exchanging heat with the indoor in a radiation heat exchange and natural convection heat exchange mode, an indoor machine in the air conditioning system can enable indoor air to circulate, on one hand, dirty indoor air is discharged outdoors, on the other hand, outdoor fresh air is input indoors after measures such as sterilization, disinfection, filtration and the like, and the air in the room is fresh and clean air at all times.
Further, the first heat exchange system and the second heat exchange system in this embodiment may be designed independently, or may be designed integrally. The first heat exchange system is formed by connecting a first compressor 21, a first four-way valve 22, a first outdoor heat exchanger 23, a first throttling element 24, a first indoor heat exchanger 13, a second throttling element 14 and a second indoor heat exchanger 12 in series, and forms a refrigerant loop of the indoor unit. The indoor unit 100 is an indoor part corresponding to the first heat exchange system, and is provided with a fresh air blower 11, and specifically, the indoor unit 100 includes a first indoor heat exchanger 13, a fresh air blower 11, and a second indoor heat exchanger 12. The second heat exchange system is formed by connecting a second compressor 26, a second four-way valve 27, a second outdoor heat exchanger 28, a third throttling element 29 and a third indoor heat exchanger in series, and forms a refrigerant circuit of the heat pump main machine. The heat pump radiation end 300 is an indoor portion corresponding to the second heat exchange system, and specifically, the heat pump radiation end 300 includes the third indoor heat exchanger 31 and a radiation pipeline.
When the first heat exchange system and the second heat exchange system are designed independently, the specific structure is shown in fig. 3, for example. In fig. 3, the outdoor part of the first heat exchange system and the outdoor part of the second heat exchange system are respectively disposed in different outdoor units, and each of the outdoor units has an independent outdoor fan. The first heat exchange system is disposed in the first outdoor unit 400, and the corresponding outdoor fan is the first outdoor fan 25. The second heat exchange system is arranged in the second air-conditioning outdoor unit, and the corresponding outdoor fan is a second outdoor fan 15.
When the first heat exchange system and the second heat exchange system adopt an integrated design, the structure is as shown in fig. 4. In fig. 4, the outdoor portion of the first heat exchange system and the outdoor portion of the second heat exchange system are disposed in the same outdoor unit, i.e., the common outdoor unit 500, and share one outdoor fan, i.e., the common outdoor unit 40, and the outdoor unit 40 can be used to radiate heat to the first outdoor heat exchanger 13 and the second outdoor heat exchanger 12. Further, the common outdoor unit 40 may be provided in one or more than one, and may be provided according to actual situations, which is not limited in this embodiment.
It should be noted that fig. 3 and 4 only differ in the integrated design of the outdoor unit and the stand-alone design, and the control principle of the air conditioning system having the two different designs is the same as the internal structure of the indoor unit and the internal structure of the heat pump unit. Wherein, second indoor heat exchanger 12 is used as the evaporimeter for dehumidify the new trend, and first indoor heat exchanger 13 is used for heating the new trend, and the new trend when realizing dehumidifying and heating is reheated.
Further, a heating operation process of the air conditioning system is described by taking fig. 3 as an example. When heating operation is carried out, the exhaust gas of the first compressor 21 of the first heat exchange system enters the second indoor heat exchanger 12 and the first indoor heat exchanger 13 for condensation, the second throttling element 14 does not throttle, and then the exhaust gas passes through the first throttling element 24 for throttling and pressure reduction, enters the first outdoor heat exchanger 23 for evaporation and heat absorption, and the heating cycle is completed; the second compressor 26 of the second heat exchange system exhausts gas and enters the third indoor heat exchanger 31 for condensation, throttles and reduces the pressure through the third throttling element 29, enters the second outdoor heat exchanger 28 for evaporation and heat absorption, and the heating cycle is completed.
Further, the air conditioning system in this embodiment can also realize refrigeration operation, during the refrigeration operation, the first compressor 21 of the first heat exchange system exhausts air to enter the first outdoor heat exchanger 23 for condensation, and then enters the second indoor heat exchanger 12 for heat absorption after throttling and depressurizing by the first throttling element 24, and the second throttling element 14 is opened without throttling and enters the first indoor heat exchanger 13 for evaporation and heat absorption, thereby completing the refrigeration cycle; the second compressor 26 of the second heat exchange system exhausts gas and enters a second outdoor heat exchanger 28 for condensation, and the gas is throttled and decompressed by a third throttling element 29 and then enters a third indoor heat exchanger 31 for absorbing heat, so that the refrigeration cycle is completed; the indoor unit 100 dehumidifies and cools the indoor air to be low evaporation temperature (any value between 3 ℃ and 15 ℃), the heat pump radiation end 300 cools the indoor air only, and the water side heat exchanger is high evaporation temperature (any value between 10 ℃ and 20 ℃). The heating and cooling processes in fig. 3 and fig. 4 are the same, and are not described again in this embodiment.
Further, when the first heat exchange system operates in the dehumidification reheating mode, the exhaust gas of the first compressor 21 of the first heat exchange system enters the first outdoor heat exchanger 23 for condensation, does not work (is opened or bypassed) through the first throttling element 24, enters the first indoor heat exchanger 13 for condensation (reheating), throttles and reduces the pressure (works) through the second throttling element 14, enters the second indoor heat exchanger 12 for evaporation and heat absorption, and completes the dehumidification reheating cycle. When the first heat exchange system operates in the dehumidification reheating mode, the second heat exchange system can be in a heating operation state or a closed state.
It should be noted that, after the dehumidification is reheated and opened, the indoor unit dehumidifies the indoor environment, and when the indoor unit dehumidifies, if the outdoor environment temperature is lower, the outlet air temperature of the indoor unit at this time will also be lower, which will affect the heating effect of the air conditioning system.
And the control module 20 is configured to control the second heat exchange system to perform heating operation when the current air outlet temperature is lower than a first preset air outlet temperature.
It should be noted that, the change of the outdoor environment temperature also affects the outlet air temperature of the indoor unit, for example, when the outdoor environment temperature is reduced, the outlet air temperature of the indoor unit also decreases, and in this embodiment, whether the outlet air temperature of the indoor unit is lower is determined by the first preset outlet air temperature. The first preset outlet air temperature is a certain value or range between 10 ℃ and 55 ℃, for example, the first preset outlet air temperature may be set to 11 ℃, or may be set to 11 ℃ to 12 ℃, and may be adjusted accordingly according to the actual needs of the user, which is not limited in this embodiment.
When the current air outlet temperature is lower than a first preset air outlet temperature, the first heat exchange system is kept to operate in a dehumidification reheating mode. When the current air-out temperature is less than a first preset air-out temperature, the second heat exchange system is controlled to heat and operate, and the method can be understood as follows: if the second heat exchange system is in a closed state when the first heat exchange system is in a dehumidification and reheating mode, controlling the second heat exchange system to be started and to perform heating operation; and if the second heat exchange system is in an opening state when the first heat exchange system is in the dehumidification reheating mode, controlling the second heat exchange system to keep heating operation.
In concrete the realization, under the dehumidification reheat mode, indoor chance dehumidifies and the heating operation, if present air-out temperature is less than first preset air-out temperature, can control second heat transfer system and first heat transfer system in this embodiment and carry out the linkage, takes the mode of heating jointly to guarantee air conditioning system's heating effect.
In the embodiment, when the first heat exchange system is in a dehumidification reheating mode, the current air outlet temperature of an indoor unit of the air conditioning system is obtained; when the current air outlet temperature is lower than the first preset air outlet temperature, the second heat exchange system is controlled to heat, and the first heat exchange system is linked with the second heat exchange system, so that the heating effect of the whole air conditioning system is improved.
It should be understood that the above is only an example, and the technical solution of the present invention is not limited in any way, and in a specific application, a person skilled in the art may set the technical solution as needed, and the present invention is not limited thereto.
It should be noted that the above-described work flows are only exemplary, and do not limit the scope of the present invention, and in practical applications, a person skilled in the art may select some or all of them to achieve the purpose of the solution of the embodiment according to actual needs, and the present invention is not limited herein.
In addition, the technical details that are not described in detail in this embodiment may refer to the control method provided in any embodiment of the present invention, and are not described herein again.
Further, it is to be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
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 or portions thereof that contribute to the prior art may be embodied in the form of a software product, where the computer software product is stored in a storage medium (e.g. Read Only Memory (ROM)/RAM, magnetic disk, optical disk), and includes several instructions for enabling a terminal device (e.g. a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The control method of the air conditioning system is characterized in that the air conditioning system comprises a first heat exchange system and a second heat exchange system; the control method comprises the following steps:
when the first heat exchange system is in a dehumidification reheating mode, acquiring the current air outlet temperature of an indoor unit of the air conditioning system; and
and when the current air outlet temperature is lower than a first preset air outlet temperature, controlling the second heat exchange system to perform heating operation.
2. The control method according to claim 1, wherein the air conditioning system includes an outdoor air conditioning unit, the first heat exchange system includes a first compressor, a first throttling element, a second throttling element, a first outdoor heat exchanger, a first indoor heat exchanger, and a second indoor heat exchanger, the first compressor, the first outdoor heat exchanger, the first throttling element, the first indoor heat exchanger, the second throttling element, and the second indoor heat exchanger are sequentially arranged in series, the indoor unit includes a first indoor heat exchanger, a second indoor heat exchanger, and a fresh air fan, the outdoor air conditioning unit includes the first compressor, the first outdoor heat exchanger, and a first outdoor fan for dissipating heat from the first outdoor heat exchanger, and the control method further includes:
and when the current air outlet temperature is greater than or equal to a first preset air outlet temperature and is less than a second preset air outlet temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan and the rotating speed of the first outdoor fan is reduced.
3. The control method according to claim 1, characterized by further comprising:
acquiring the current indoor temperature;
comparing the current indoor temperature with a preset indoor temperature; and
and adjusting the running state of the air conditioning system according to the comparison result.
4. The control method according to claim 3, wherein the air conditioning system comprises an air conditioning outdoor unit, the first heat exchange system comprises a first compressor, a first throttling element, a second throttling element, a first outdoor heat exchanger, a first indoor heat exchanger and a second indoor heat exchanger, the first compressor, the first outdoor heat exchanger, the first throttling element, the first indoor heat exchanger, the second throttling element and the second indoor heat exchanger are sequentially arranged in series, the indoor unit comprises a first indoor heat exchanger, a second indoor heat exchanger and a fresh air fan, the second heat exchange system comprises a second compressor, a second outdoor heat exchanger, a third throttling element and a third indoor heat exchanger, the air conditioning outdoor unit comprises the first compressor, the first outdoor heat exchanger, the second compressor and the second outdoor heat exchanger and a first outdoor fan for radiating heat of the first outdoor heat exchanger, the adjusting the operation state of the air conditioning system according to the comparison result comprises the following steps:
when the current indoor temperature is lower than the preset indoor temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan, the rotating speed of the first outdoor fan, the rotating speed of the second compressor and the opening degree of the third throttling element is reduced.
5. The control method of claim 4, wherein the outdoor unit of the air conditioner further comprises a second outdoor fan for radiating heat to the second outdoor heat exchanger, and the adjusting the operation state of the air conditioning system according to the comparison result comprises:
when the current indoor temperature is lower than the preset indoor temperature, at least one of the opening degree of the second throttling element, the rotating speed of the fresh air fan, the rotating speed of the first outdoor fan, the rotating speed of the second compressor and the opening degree of the third throttling element is reduced.
6. The control method of claim 4, wherein the first outdoor fan is also used to dissipate heat from the second outdoor heat exchanger.
7. The control method of claim 4, wherein the adjusting the operating state of the air conditioning system according to the comparison pair comprises:
and when the current indoor temperature is greater than or equal to the preset indoor temperature, at least one of increasing the opening degree of the second throttling element, reducing the rotating speed of the second compressor, increasing the rotating speed of the first outdoor fan and closing the second heat exchange system.
8. The control device of the air conditioning system is characterized in that the air conditioning system comprises a first heat exchange system and a second heat exchange system; the control device includes:
the obtaining module is used for obtaining the current air outlet temperature of an indoor unit of the air conditioning system when the first heat exchange system is in a dehumidification reheating mode; and
and the control module is used for controlling the second heat exchange system to perform heating operation when the current air outlet temperature is less than a first preset air outlet temperature.
9. A control apparatus of an air conditioning system, characterized by comprising: a memory, a processor, and a control program of an air conditioning system stored on the memory and executable on the processor, the control program of the air conditioning system being configured to implement the control method of the air conditioning system according to any one of claims 1 to 7.
10. A storage medium having stored thereon a control program of an air conditioning system, the control program of the air conditioning system realizing the control method of the air conditioning system according to any one of claims 1 to 7 when executed by a processor.
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