CN110939998A - Air conditioning system, air conditioner and control method - Google Patents
Air conditioning system, air conditioner and control method Download PDFInfo
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- CN110939998A CN110939998A CN201911142841.5A CN201911142841A CN110939998A CN 110939998 A CN110939998 A CN 110939998A CN 201911142841 A CN201911142841 A CN 201911142841A CN 110939998 A CN110939998 A CN 110939998A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims description 16
- 238000007791 dehumidification Methods 0.000 claims abstract description 117
- 230000001105 regulatory effect Effects 0.000 claims abstract description 8
- 238000002360 preparation method Methods 0.000 claims description 37
- 230000001276 controlling effect Effects 0.000 claims description 24
- 238000005192 partition Methods 0.000 claims description 8
- 230000001360 synchronised effect Effects 0.000 claims description 7
- 238000010079 rubber tapping Methods 0.000 claims 3
- 230000003750 conditioning effect Effects 0.000 claims 2
- 239000003507 refrigerant Substances 0.000 abstract description 15
- 238000005057 refrigeration Methods 0.000 abstract description 12
- 230000002238 attenuated effect Effects 0.000 abstract description 4
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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Classifications
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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
- F24F3/1405—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 in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
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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
- F24F11/70—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
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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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
- F24F11/88—Electrical aspects, e.g. circuits
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Fuzzy Systems (AREA)
- Thermal Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application provides an air conditioning system, includes: the system comprises a variable frequency compressor, a temperature adjusting system and a dehumidifying system, wherein the temperature adjusting system is connected with the variable frequency compressor through a pipeline to form a temperature adjusting cycle; the dehumidification system is connected with the variable frequency compressor through a pipeline to form a dehumidification cycle; the temperature regulating system is connected with the dehumidifying system in parallel. According to the air conditioning system, the refrigerant mass flow can be improved by changing the running frequency of the compressor, and the dehumidification system can be simultaneously operated on the premise of maintaining the refrigeration capacity of the temperature regulation system not to be attenuated; and can low-speed operation, under the compressor condition of not stopping, satisfy the low-load demand, operate steadily, the travelling comfort is good, energy-conservation.
Description
Technical Field
The application belongs to the technical field of air conditioners, and particularly relates to an air conditioning system, an air conditioner and a control method.
Background
Currently, a dehumidification system is added to an air conditioning system, and the dehumidification system includes a compressor, an evaporator, a condenser, a throttling device, a fan, and the like, that is, two compressors are included in one air conditioner having a dehumidification function, which increases the cost of the air conditioning system.
However, when one inverter compressor is adopted, the temperature regulation system and the dehumidification system operate simultaneously, and the refrigeration capacity of the temperature regulation system is inevitably reduced after the refrigerant is shunted, so that the temperature regulation speed and the comfort are influenced; and when the temperature adjusting system and the dehumidifying system run at low load, the refrigerating/dehumidifying load requirement is quickly met because the running frequency of the compressor is not changed under all conditions, so that the compressor is frequently started and stopped, and the power consumption is increased.
Therefore, how to provide an air conditioning system, an air conditioner and a control method which can simultaneously operate a dehumidification system on the premise of maintaining the refrigeration capacity of a temperature regulation system not to be attenuated and meet the low-load requirement without stopping a compressor is a problem which needs to be solved urgently by a person skilled in the art.
Disclosure of Invention
Therefore, an object of the present invention is to provide an air conditioning system, an air conditioner and a control method, which can simultaneously operate a dehumidification system while maintaining the refrigeration capacity of a temperature regulation system not to be attenuated; and the low-load requirement is met under the condition of not stopping the compressor.
In order to solve the above problems, the present application provides an air conditioning system including:
a variable frequency compressor;
the temperature adjusting system is connected with the variable frequency compressor through a pipeline to form a temperature adjusting cycle;
the dehumidification system is connected with the variable-frequency compressor through a pipeline to form a dehumidification cycle; the temperature regulating system is connected with the dehumidifying system in parallel.
Preferably, the air conditioning system further comprises a first flow dividing device, wherein a confluence end of the first flow dividing device is connected with an outlet of the variable frequency compressor, and flow dividing ends of the first flow dividing device are respectively connected with a first air inlet end of the dehumidification system and a second air inlet end of the temperature regulation system; and/or the dehumidifying system further comprises a second flow dividing device, wherein the flow collecting end of the second flow dividing device is connected with the inlet of the variable frequency compressor, and the backflow end of the second flow dividing device is connected with the first air outlet end of the dehumidifying system and the second air outlet end of the temperature adjusting system respectively.
Preferably, the temperature regulation system comprises a first heat exchanger, a first throttling device and a second heat exchanger which are sequentially connected, the first heat exchanger is connected to the shunting end of the first shunting device, and the second heat exchanger is connected to the collecting end of the second shunting device; and/or the dehumidification system comprises a third heat exchanger, a second throttling device and a fourth heat exchanger which are sequentially connected, wherein the third heat exchanger is connected to the shunting end of the first shunting device, and the fourth heat exchanger is connected to the current collecting end of the second shunting device.
Preferably, the dehumidification system further comprises a first control element, and the first control element is used for controlling the on-off of the dehumidification system; and/or the temperature regulating system further comprises a second control element, and the second control element is used for controlling the on-off of the temperature regulating system.
Preferably, the air conditioning system comprises an outdoor part and an indoor part, the outdoor part and the indoor part are separated by a partition plate, and the dehumidification system is arranged in the outdoor part and corresponds to the air inlet of the dehumidification system; the first heat exchanger and the first throttling device are disposed within the outdoor section and the second heat exchanger is disposed within the indoor section.
Preferably, the air conditioning system further comprises an air door device, the air door device is arranged on the partition board and corresponds to the position of the air inlet in the indoor part, and the air door device is used for controlling the on-off of the air inlet channel; and/or the opening and closing of the damper device is synchronized with the opening and closing of the first control element.
Preferably, the damper device comprises a damper drive device and a damper, the first position of the damper being to close the damper; the second position of the damper is to open the damper; the driving device is connected with the air door and is used for driving the air door to move between a first position and a second position; and/or the opening and closing of the damper is synchronized with the opening and closing of the first control element.
Preferably, still include the dehumidification filter screen, the dehumidification filter screen sets up in dehumidification system's air inlet side.
Preferably, the temperature regulation system comprises a first heat exchanger and a second heat exchanger, the dehumidification system comprises a third heat exchanger and a fourth heat exchanger, and the third heat exchanger and the fourth heat exchanger are arranged at an air inlet of the indoor part; and the third heat exchanger and the fourth heat exchanger are arranged side by side in sequence along the flow direction of wind.
According to still another aspect of the present application, there is provided an air conditioner including the air conditioning system described above.
According to still another aspect of the present application, there is provided a control method of an air conditioning system, the air conditioning system being the above air conditioning system, including:
receiving at least one instruction of a temperature regulation control instruction and a dehumidification control instruction;
controlling the air conditioning system to operate in an independent temperature adjusting mode, an independent dehumidifying mode or a parallel temperature adjusting and dehumidifying mode according to the received instruction;
and adjusting the working frequency of the variable frequency compressor according to the running mode of the air conditioning system.
Preferably, the step of adjusting the operating frequency of the inverter compressor according to the operation mode of the air conditioning system includes:
when receiving a temperature adjusting control instruction and a dehumidifying control instruction at the same time, controlling the air conditioning system to operate in a temperature adjusting and dehumidifying parallel mode;
detecting a temperature adjusting load and a dehumidifying load;
and adjusting the working frequency of the variable frequency compressor according to the temperature adjusting load and the dehumidifying load.
Preferably, the step of detecting the temperature adjusting load comprises:
detecting the ambient temperature T of the environment in which the air conditioner is locatedRing (C)；
According to the ambient temperature TRing (C)And a predetermined temperature TPreparation ofDetermining a temperature regulation load by the difference (delta T);
and/or the step of detecting the dehumidification load comprises:
detecting the ambient humidity Q of the environment in which the air conditioner is locatedRing (C)；
According to the ambient humidity QRing (C)With a predetermined humidity QPreparation ofDetermines the dehumidification load.
Preferably, the step of controlling the air conditioning system to operate in the single temperature adjusting mode, the single dehumidifying mode or the parallel temperature adjusting and dehumidifying mode according to the received command comprises:
when a dehumidification instruction is received independently or only a dehumidification load is detected, the temperature regulation system is controlled to be closed, and the dehumidification system is controlled to operate;
controlling the variable frequency compressor to operate at a dehumidification frequency;
and/or when the temperature adjusting instruction is received independently or only the temperature adjusting load is detected, the dehumidification system is controlled to be closed, and the temperature adjusting system is controlled to operate.
Preferably, the dehumidification frequency is determined according to the exhaust temperature of the inverter compressor.
Preferably, the step of adjusting the operating frequency of the inverter compressor according to the operation mode of the air conditioning system includes:
detecting the ambient temperature T of the environment in which the air conditioner is locatedRing (C)；
Judging the ambient temperature TRing (C)And a predetermined temperature TPreparation ofDifference Δ T between and the first predetermined difference Δ T1Preparation ofAnd a second predetermined difference Δ T2Preparation ofThe relationship of (1);
if Δ T>⊿T1Preparation ofControlling the variable frequency compressor to operate at a first preset frequency;
if Δ T1Preparation of>⊿T>⊿T2Preparation ofControlling the variable frequency compressor to operate at a second preset frequency;
if Δ T2 is predicted>When delta T is detected, controlling the variable frequency compressor to operate at a third preset frequency; and a first preset frequency>Second predetermined frequency>Third preset frequency, Δ T1Preparation of>⊿T2Preparation of。
The air conditioning system provided by the application uses the variable frequency compressor, the refrigerant mass flow can be improved by improving the operation frequency of the compressor, and the dehumidification system is operated simultaneously on the premise of maintaining the refrigeration capacity of the temperature regulation system not to be attenuated; and can low-speed operation, under the compressor condition of not stopping, satisfy the low-load demand, operate steadily, the travelling comfort is good, energy-conservation.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning system according to an embodiment of the present application;
fig. 2 is a perspective view of an air conditioning system according to an embodiment of the present application.
The reference numerals are represented as:
1. a variable frequency compressor; 2. a temperature regulation system; 21. a first heat exchanger; 22. a first throttling device; 23. a second heat exchanger; 24. a second control element; 3. a dehumidification system; 31. a third heat exchanger; 32. a second throttling device; 33. a fourth heat exchanger; 34. a first control element; 4. a first flow dividing device; 5. a second flow splitting device; 6. a partition plate; 7. a dehumidification filter screen; 8. a dehumidification fan; 9. and the cross-flow fan blade.
Detailed Description
Referring collectively to fig. 1, according to an embodiment of the present application, an air conditioning system includes: the system comprises a variable frequency compressor 1, a temperature adjusting system 2 and a dehumidifying system 3, wherein the temperature adjusting system 2 is connected with the variable frequency compressor 1 through a pipeline to form a temperature adjusting cycle; the dehumidification system 3 is connected with the variable frequency compressor 1 through a pipeline to form a dehumidification cycle; temperature regulation system 2 is parallelly connected with dehumidification system 3, utilizes the adjustable frequency's of inverter compressor characteristic, reaches the unique effect that is different from inverter compressor: the variable frequency compressor operates at high frequency, so that high-load operation of a double system is realized, the capacity of a temperature adjusting system is not reduced, and the temperature is quickly reduced and dehumidified; when the double systems are in low load, the compressor runs at low frequency, and is economical and reliable; the temperature adjusting system can also be closed, and the compressor runs at low frequency, so that the independent and stable operation of the dehumidification system is realized. And the dehumidification system 3 and the temperature regulation system 2 share the frequency conversion compressor 1 to provide power for temperature regulation and dehumidification at the same time, so that indoor dehumidification and temperature regulation are realized, an independent dehumidification compressor is omitted, the use number of the compressors is reduced, the structure of the air conditioning system is more compact, and the cost of the air conditioning system is reduced.
Furthermore, the air conditioning system also comprises a first flow dividing device 4, wherein a converging end of the first flow dividing device 4 is connected with an outlet of the variable frequency compressor 1, and a flow dividing end is respectively connected with a first air inlet end of the dehumidification system 3 and a second air inlet end of the temperature adjusting system 2; and/or the dehumidifying device further comprises a second flow dividing device 5, a flow collecting end of the second flow dividing device 5 is connected with an inlet of the variable frequency compressor 1, a backflow end is connected with a first air outlet end of the dehumidifying system 3 and a second air outlet end of the temperature adjusting system 2 respectively, the refrigerant can be distributed and conveyed to the temperature adjusting system 2 and the dehumidifying system 3 according to a certain proportion, the dehumidifying capacity can be reasonably adjusted according to needs, the indoor humidity can be in a range required by a user, and the requirements of the indoor temperature and humidity of the user can be better met.
Further, the temperature regulation system 2 comprises a first heat exchanger 21, a first throttling device 22 and a second heat exchanger 23 which are connected in sequence, wherein the first heat exchanger 21 is connected to the shunting end of the first shunting device 4, and the second heat exchanger 23 is connected to the collecting end of the second shunting device 5; and/or, the dehumidification system 3 comprises a third heat exchanger 31, a second throttling device 32 and a fourth heat exchanger 33 which are connected in sequence, wherein the third heat exchanger 31 is connected to the splitting end of the first splitting device 4, and the fourth heat exchanger 33 is connected to the collecting end of the second splitting device 5.
Further, the dehumidification system 3 further comprises a first control element 34, wherein the first control element 34 is used for controlling the on-off of the dehumidification system 3; and/or, the temperature regulating system 2 further comprises a second control element 24, the second control element 24 is used for controlling the on-off of the temperature regulating system 2, and a user can control whether the dehumidification system 3 dehumidifies or not by adopting the first control element 34 according to needs, so that the dehumidification is more convenient and the energy is saved; when the dehumidification system 3 operates alone, the temperature regulation system 2 can be switched off through the second control element 24, and at the moment, the variable frequency compressor 1 operates in a frequency reduction mode, so that the dehumidification system 3 can be used alone, the power is low, no liquid impact is caused, and the method is more economical and reliable.
Further, the first control element 34 is a solenoid valve.
Further, the second control element 24 is a solenoid valve.
When the two systems work simultaneously: after the refrigerant is discharged from an outlet of the variable frequency compressor 1, the refrigerant enters the dehumidification system 3 and the temperature regulation system 2 through the first flow dividing device 4 by the first flow dividing device 4;
in the temperature regulation system 2: the refrigerant sequentially enters the first heat exchanger 21, the first throttling device 22 and the second heat exchanger 23, and then enters the variable frequency compressor 1 through the second flow dividing device 5, so that the temperature regulation cycle is completed.
In the dehumidification system 3: the refrigerant sequentially enters the third heat exchanger 31, the second throttling device 32 and the fourth heat exchanger 33, and then enters the variable frequency compressor 1 through the second flow dividing device 5 to complete the dehumidification cycle.
The determination method of the distribution proportion of the first flow dividing device 4 to the refrigerant in the dehumidification system 3 and the temperature regulation system 2 is as follows: the refrigerant distribution proportion can be determined by adjusting the first throttling device 22 and the second throttling device 32, for example, when the first throttling device 22 and the second throttling device 32 are both capillary tubes, the flow resistance ratio of the two systems can be adjusted by adjusting the lengths of the capillary tubes in the first throttling device 22 and the second throttling device 32 according to the requirements of dehumidification and refrigeration capacities, so that the proportion of the exhaust gas of the variable frequency compressor 1 entering the dehumidification system 3 and the temperature adjusting system 2 can be controlled. For example, the following steps are carried out: if a certain unit requires strong change of dehumidification capacity, the capillary tube in the second throttling device 32 can be shortened, so that the whole flow resistance of the dehumidification system is reduced, the exhaust gas distribution in the corresponding dehumidification system 2 is more, the condensate evaporation capacity in the fourth heat exchanger 33 is more, the condensate in the third heat exchanger 31 is increased, and the corresponding dehumidification capacity is enhanced. At this time, in the temperature regulation system 2, the capillary tube of the first throttle device 22 is not changed, and although the flow resistance is not changed, the flow resistance ratio between the dehumidification system 3 and the temperature regulation system 2 is changed, the exhaust gas flow rate of the temperature regulation system 2 becomes small accordingly, the exhaust gas flow rate passing through the temperature regulation system 2 is reduced, and the refrigeration capacity is reduced. The exact length of the capillary tubes in the first and second restrictions 22, 32 can be determined on a case-by-case basis to achieve the desired refrigeration capacity and dehumidification.
Referring to fig. 2 in combination, the present application also discloses embodiments in which the air conditioning system includes an outdoor portion and an indoor portion, the outdoor portion and the indoor portion are separated by a partition 6, and the dehumidification system 3 is disposed in the indoor portion and corresponds to an air inlet of the dehumidification system 3; the first heat exchanger 21 and the first throttling device 22 are disposed in the outdoor portion, and the second heat exchanger 23 is disposed in the indoor portion.
Furthermore, the air conditioning system also comprises an air door device, the air door device is arranged on the partition board 6 and corresponds to the position of the air inlet of the indoor part, and the air door device is used for controlling the on-off of the air inlet channel; and/or the opening and closing of the damper device is synchronized with the opening and closing of the first control element 34.
Further, the damper device comprises a damper driving device and a damper, and the first position of the damper is to close the damper; the second position of the damper is to open the damper; the driving device is connected with the air door and is used for driving the air door to move between a first position and a second position; and/or, the opening and closing of the damper is synchronized with the opening and closing of the first control element 34; when the first control element 34 is opened, the air door driving device drives the air door to move to the second position, so that the dehumidified wind can enter the room to be dehumidified, and when the first control element 34 is closed, the air door driving device drives the air door to move to the first position, so that outdoor wind is prevented from entering the room to influence the indoor environment.
Further, the air door driving device is an air door motor.
Further, an air door is installed at an air inlet of the dehumidification system 3 and used for controlling whether wind energy enters the dehumidification system 3 for dehumidification, and the opening and closing of the air door is synchronous with the opening and closing of the first control element 34; when the first control element 34 is opened, the damper driving device drives the damper to move to the second position, so that wind can enter the dehumidification system 3 to perform dehumidification, and when the first control element 34 is closed, the damper driving device drives the damper to move to the first position, so that outdoor wind is prevented from entering the dehumidification system 3.
Further, still include dehumidification filter screen 7, dehumidification filter screen 7 sets up in dehumidification system 3's air inlet side, can filter the air that gets into dehumidification system 3, avoids impurity etc. to get into dehumidification system 3.
Further, the temperature adjusting system 2 comprises a first heat exchanger 21 and a second heat exchanger 23, the dehumidifying system 3 comprises a third heat exchanger 31 and a fourth heat exchanger 33, and the third heat exchanger 31 and the fourth heat exchanger 33 are arranged at an air inlet of the indoor part; and the third heat exchanger 31 and the fourth heat exchanger 33 are arranged side by side in sequence in the flow direction of the wind.
In the dehumidification process, wind firstly flows through the third heat exchanger 31, the second throttling device 32 and the fourth heat exchanger 33, is condensed on the surface of the third heat exchanger 31, moisture in the air is removed, and the dehumidified air is heated by the fourth heat exchanger 33, so that the problem that the second heat exchanger 23 cannot absorb enough heat due to too low air temperature is solved. Outdoor air firstly passes through the dehumidifying fan 8 under the action of the dehumidifying fan 8, then is filtered by the dehumidifying filter screen 7, then passes through the third heat exchanger 31 and the fourth heat exchanger 33, and then enters the indoor side through the partition board 6, and firstly passes through a reserved gap in the volute and then is discharged through the indoor air duct system under the action of the cross-flow fan blade 9. When the air passes through the third heat exchanger 31, the surface temperature of the third heat exchanger 31 is low and is lower than the dew point temperature of the air, so that the moisture in the air can be cooled, and the cooling water can be discharged to an outdoor chassis through a drainage system. After the air passes through the third heat exchanger 31, moisture in the air is removed, and the dehumidified air is heated by the fourth heat exchanger 33 and then enters the room.
According to the embodiment of the application, the air conditioner comprises the air conditioning system.
According to an embodiment of the present application, there is also disclosed a control method of an air conditioning system, the air conditioning system being the above air conditioning system, including:
receiving at least one instruction of a temperature regulation control instruction and a dehumidification control instruction;
controlling the air conditioning system to operate in an independent temperature adjusting mode, an independent dehumidifying mode or a parallel temperature adjusting and dehumidifying mode according to the received instruction;
the working frequency of the variable frequency compressor 1 is adjusted according to the operation mode of the air conditioning system, the variable frequency compressor 1 is used, the frequency of the variable frequency compressor 1 is adjusted in a large range under the action of the variable frequency controller, the temperature adjusting system 2 and the dehumidifying system 3 can be more flexibly applied, and the adaptability is stronger.
Further, the step of adjusting the operating frequency of the inverter compressor 1 according to the operation mode of the air conditioning system includes:
when receiving a temperature adjusting control instruction and a dehumidifying control instruction at the same time, controlling the air conditioning system to operate in a temperature adjusting and dehumidifying parallel mode;
detecting a temperature adjusting load and a dehumidifying load;
and adjusting the working frequency of the variable frequency compressor 1 according to the temperature adjusting load and the dehumidifying load.
Further, the step of detecting the temperature adjustment load includes:
detecting the ambient temperature T of the environment in which the air conditioner is locatedRing (C)；
According to the ambient temperature TRing (C)And a predetermined temperature TPreparation ofDetermining a temperature regulation load by the difference (delta T);
and/or the step of detecting the dehumidification load comprises:
detecting the ambient humidity Q of the environment in which the air conditioner is locatedRing (C)；
According to the ambient humidity QRing (C)With a predetermined humidity QPreparation ofDetermining a dehumidification load and judging whether the refrigeration load reaches or not by arranging an environment temperature sensing bulb at a return air inlet, wherein when a user sets a requirement for 25 ℃ of environment temperature through a remote controller or a panel, the environment temperature sensing bulb detects that the return air is 23 ℃, the return air temperature reaches the requirement, no refrigeration requirement exists, at the moment, a temperature adjusting system 2 can be closed, a variable frequency compressor 1 is stopped, and a fan is kept running; dehumidification load demand, can realize through setting up humidity transducer in dehumidification system 3 air inlet sides, for example, the user sets for the new trend that needs are less than 80% relative humidity, certain period detects that new trend relative humidity is 70%, satisfy and be less than 80% relative humidity requirement, then there is not new trend dehumidification load demand this moment, can close dehumidification system, nevertheless dehumidification side fan can continue to operate, continue to carry the main wind channel with the new trend propelling movement, it is corresponding, the temperature regulation fan also needs the cooperation operation this moment, carry the new trend to indoor.
Further, the step of controlling the air conditioning system to operate in an individual temperature adjusting mode, an individual dehumidifying mode or a parallel temperature adjusting and dehumidifying mode according to the received instruction comprises the following steps:
when a dehumidification instruction is received independently or only dehumidification load is detected, the temperature adjusting system 2 is controlled to be closed, and the dehumidification system 3 is controlled to operate;
controlling the variable frequency compressor 1 to operate at a dehumidification frequency;
and/or, when a temperature regulation instruction is received independently or only a temperature regulation load is detected, the dehumidification system 3 is controlled to be closed, and the temperature regulation system 2 is controlled to operate, because the operation frequency of the compressor required by the dehumidification system 3 is often much lower than that of the temperature regulation system 2, if the compressor is a fixed frequency, the dehumidification system with a relatively small compressor is too large and mismatched, the problem of high exhaust pressure or liquid impact and the like can occur, so that the independent dehumidification system cannot normally operate, and the variable frequency compressor 1 in the application operates at a low frequency at the moment, for example, operates near 30Hz, and the economic operation of the dehumidification system 3 is just maintained.
Further, the dehumidification frequency is determined according to the exhaust temperature of the inverter compressor 1.
Further, the step of adjusting the operating frequency of the inverter compressor 1 according to the operation mode of the air conditioning system includes:
detecting the ambient temperature T of the environment in which the air conditioner is locatedRing (C)；
Judging the ambient temperature TRing (C)And a predetermined temperature TPreparation ofDifference Δ T between and the first predetermined difference Δ T1Preparation ofAnd a second predetermined difference Δ T2Preparation ofThe relationship of (1);
if Δ T>⊿T1Preparation ofControlling the variable frequency compressor 1 to operate at a first preset frequency;
if Δ T1Preparation of>⊿T>⊿T2Preparation ofControlling the variable frequency compressor 1 to operate at a second preset frequency;
if Δ T2Preparation of>When delta T is detected, controlling the variable frequency compressor 1 to operate at a third preset frequency; and a first preset frequency>Second predetermined frequency>Third preset frequency, Δ T1Preparation of>⊿T2Preparation ofThe frequency conversion compressor 1 can automatically adjust the rotating speed of the compressor according to the change of refrigeration/dehumidification load, and the maximum refrigeration and dehumidification requirements of users are met:
in situations where the difference between the measured value of the indoor ambient temperature sensor and the programmed temperature is large, such as delta T1Preparation ofIs 5 degrees, delta T>⊿T1Preparation ofWhen the frequency conversion compressor 1 runs high frequency, for example, when the first preset frequency is high-speed operation of 80Hz, the flow rate of the refrigerant of the double systems is increased, the mass flow is increased, the heat exchange quantity of the temperature adjusting system 2 and the dehumidifying system 3 is maximized, the double systems can be ensured to cool and dehumidify at the fastest speed, and the problem that when the double systems are simultaneously started by using the frequency conversion compressor 1, the refrigerating capacity of the temperature adjusting system 2 is reduced due to the fact that the refrigerant is shunted, and the refrigerant cannot be cooled to the set temperature or the cooling speed is slow is avoided;
slightly larger difference between the indoor ambient temperature sensor detection value and the programmed temperature, such as delta T2Preparation ofIs 3 degrees; Δ T1Preparation of>⊿T>⊿T2Preparation ofThen the inverter compressor runs at a high frequency, e.g. in the secondThe preset frequency is 50 or 40Hz, the operation is carried out at a medium speed, the flow rate of the refrigerant of the double systems is moderate, the mass flow is moderate, the heat exchange quantity of the temperature adjusting system and the dehumidifying system is in a medium level, and the temperature can be reduced and the dehumidification can be carried out at a moderate speed;
after the dual-system is operated for a period of time, the difference between the indoor environment temperature sensor detection value and the programmed temperature is small, such as delta T2Preparation of>Δ T, Δ T is close to 0 degree promptly, and the cold volume that temperature regulation system 2 needs this moment is low, and variable frequency compressor 1 can run the low frequency and maintain the low-load demand, for example according to 10 or 20Hz low-speed operation, and dual system refrigerant velocity of flow is slow, and mass flow is low, and temperature regulation system 2 and dehumidification system 3 heat transfer volume are in low-load operation level, and this moment, variable frequency compressor 1 power is very low to low cold volume demand is maintained to the most economical operation mode.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not intended to be limited to the particular embodiments shown and described, but is to be accorded the widest scope consistent with the principles and novel features herein disclosed. The foregoing is only a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present application, and these modifications and variations should also be considered as the protection scope of the present application.
Claims (16)
1. An air conditioning system, comprising:
an inverter compressor (1);
the temperature adjusting system (2) is connected with the variable-frequency compressor (1) through a pipeline to form a temperature adjusting cycle;
the dehumidification system (3) is connected with the variable-frequency compressor (1) through a pipeline to form a dehumidification cycle; the temperature adjusting system (2) is connected with the dehumidifying system (3) in parallel.
2. The air conditioning system according to claim 1, characterized in that the air conditioning system further comprises a first flow dividing device (4), wherein a converging end of the first flow dividing device (4) is connected with an outlet of the inverter compressor (1), and a flow dividing end is respectively connected with a first air inlet end of the dehumidification system (3) and a second air inlet end of the temperature regulation system (2); and/or the system further comprises a second flow dividing device (5), wherein the flow collecting end of the second flow dividing device (5) is connected with the inlet of the variable frequency compressor (1), and the return end of the second flow dividing device is connected with the first air outlet end of the dehumidification system (3) and the second air outlet end of the temperature regulation system (2) respectively.
3. Air conditioning system according to claim 2, characterized in that said temperature conditioning system (2) comprises a first heat exchanger (21), a first throttling device (22) and a second heat exchanger (23) connected in series, said first heat exchanger (21) being connected to the tapping end of said first tapping device (4) and said second heat exchanger (23) being connected to the collecting end of said second tapping device (5); and/or the dehumidification system (3) comprises a third heat exchanger (31), a second throttling device (32) and a fourth heat exchanger (33) which are connected in sequence, wherein the third heat exchanger (31) is connected to the shunting end of the first shunting device (4), and the fourth heat exchanger (33) is connected to the collecting end of the second shunting device (5).
4. Air conditioning system according to claim 3, characterized in that the dehumidification system (3) further comprises a first control element (34), the first control element (34) being adapted to control the switching of the dehumidification system (3); and/or the temperature regulating system (2) further comprises a second control element (24), and the second control element (24) is used for controlling the on-off of the temperature regulating system (2).
5. Air conditioning system according to claim 4, characterized in that it comprises an outdoor part and an indoor part, said outdoor part and said indoor part being separated by a partition (6), said dehumidification system (3) being arranged inside said outdoor part and corresponding to an air intake of said dehumidification system (3); the first heat exchanger (21) and the first throttling means (22) are arranged within the chamber outer portion, and the second heat exchanger (23) is arranged within the chamber inner portion.
6. The air conditioning system of claim 5, further comprising a damper device, wherein the damper device is disposed on the partition (6) and corresponds to the position of the air inlet of the indoor part, and the damper device is used for controlling the on-off of the air inlet channel; and/or the opening and closing of the damper device is synchronized with the opening and closing of the first control element (34).
7. The air conditioning system of claim 6, wherein the damper device includes a damper drive device and a damper, the damper first position being a closed damper; the second position of the damper is to open the damper; the driving device is connected with the air door, and the air door driving device is used for driving the air door to move between a first position and a second position; and/or the opening and closing of the damper is synchronized with the opening and closing of the first control element (34).
8. Air conditioning system according to claim 6, characterized in that it further comprises a dehumidifying filter (7), said dehumidifying filter (7) being arranged on the air intake side of said dehumidifying system (3).
9. Air conditioning system according to claim 1, characterized in that said temperature conditioning system (2) comprises a first heat exchanger (21) and a second heat exchanger (23), said dehumidification system (3) comprising a third heat exchanger (31) and a fourth heat exchanger (33), said third heat exchanger (31) and fourth heat exchanger (33) being arranged at the air intake of the indoor portion; and the third heat exchanger (31) and the fourth heat exchanger (33) are arranged side by side in sequence along the flow direction of wind.
10. An air conditioner characterized by comprising an air conditioning system according to any one of claims 1 to 9.
11. A control method of an air conditioning system according to any one of claims 1 to 9, characterized by comprising:
receiving at least one instruction of a temperature regulation control instruction and a dehumidification control instruction;
controlling the air conditioning system to operate in an independent temperature adjusting mode, an independent dehumidifying mode or a parallel temperature adjusting and dehumidifying mode according to the received instruction;
and adjusting the working frequency of the variable frequency compressor (1) according to the running mode of the air conditioning system.
12. The control method of an air conditioning system according to claim 11, wherein the step of adjusting the operating frequency of the inverter compressor (1) according to the operation mode of the air conditioning system comprises:
when receiving a temperature adjusting control instruction and a dehumidifying control instruction at the same time, controlling the air conditioning system to operate in a temperature adjusting and dehumidifying parallel mode;
detecting a temperature adjusting load and a dehumidifying load;
and adjusting the working frequency of the variable-frequency compressor (1) according to the temperature adjusting load and the dehumidifying load.
13. The control method of an air conditioning system according to claim 12, wherein the step of detecting a temperature-adjusting load includes:
detecting the ambient temperature T of the environment in which the air conditioner is locatedRing (C)；
According to the ambient temperature TRing (C)And a predetermined temperature TPreparation ofDetermining a temperature regulation load by the difference (delta T);
and/or, the step of detecting the dehumidification load comprises:
detecting the ambient humidity Q of the environment in which the air conditioner is locatedRing (C)；
According to the ambient humidity QRing (C)With a predetermined humidity QPreparation ofDetermines the dehumidification load.
14. The method as claimed in claim 11, wherein the step of controlling the air conditioning system to operate in a single temperature adjusting mode, a single dehumidifying mode or a parallel temperature adjusting and dehumidifying mode according to the received command comprises:
when a dehumidification instruction is received independently or only dehumidification load is detected, the temperature adjusting system (2) is controlled to be closed, and the dehumidification system (3) is controlled to operate;
controlling the variable frequency compressor (1) to operate at a dehumidification frequency;
and/or when a temperature adjusting instruction is received independently or only temperature adjusting load is detected, the dehumidification system (3) is controlled to be closed, and the temperature adjusting system (2) is controlled to operate.
15. Control method of an air conditioning system according to claim 14, characterized in that the dehumidification frequency is determined according to the discharge temperature of the inverter compressor (1).
16. The method as claimed in claim 11, wherein the step of adjusting the operating frequency of the inverter compressor according to the operation mode of the air conditioning system comprises:
detecting the ambient temperature T of the environment in which the air conditioner is locatedRing (C)；
Judging the ambient temperature TRing (C)And a predetermined temperature TPreparation ofDifference Δ T between and the first predetermined difference Δ T1Preparation ofAnd a second predetermined difference Δ T2Preparation ofThe relationship of (1);
if Δ T>⊿T1Preparation ofControlling the variable frequency compressor (1) to operate at a first preset frequency;
if Δ T1Preparation of>⊿T>⊿T2Preparation ofControlling the variable frequency compressor (1) to operate at a second preset frequency;
if Δ T2Preparation of>When delta T is detected, controlling the variable frequency compressor (1) to operate at a third preset frequency; and the first preset frequency>The second preset frequency>The third stepFrequency, Δ T1Preparation of>Δ T2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911142841.5A CN110939998A (en) | 2019-11-20 | 2019-11-20 | Air conditioning system, air conditioner and control method |
| PCT/CN2019/128412 WO2021098005A1 (en) | 2019-11-20 | 2019-12-25 | Air conditioning system, air conditioner, and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911142841.5A CN110939998A (en) | 2019-11-20 | 2019-11-20 | Air conditioning system, air conditioner and control method |
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| CN110939998A true CN110939998A (en) | 2020-03-31 |
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| CN201911142841.5A Withdrawn CN110939998A (en) | 2019-11-20 | 2019-11-20 | Air conditioning system, air conditioner and control method |
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| CN (1) | CN110939998A (en) |
| WO (1) | WO2021098005A1 (en) |
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| CN114017893A (en) * | 2021-11-26 | 2022-02-08 | 宁波奥克斯电气股份有限公司 | Air conditioner dehumidification control method and device and air conditioner |
| CN114923275A (en) * | 2022-04-02 | 2022-08-19 | 青岛海尔空调器有限总公司 | Control method and control system for air conditioner frequency hopping, electronic equipment and storage medium |
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| WO2021098005A1 (en) | 2021-05-27 |
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