CN118129297A - Fresh air dehumidifier control method and device, storage medium and fresh air dehumidifier - Google Patents
Fresh air dehumidifier control method and device, storage medium and fresh air dehumidifier Download PDFInfo
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- CN118129297A CN118129297A CN202211538292.5A CN202211538292A CN118129297A CN 118129297 A CN118129297 A CN 118129297A CN 202211538292 A CN202211538292 A CN 202211538292A CN 118129297 A CN118129297 A CN 118129297A
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Abstract
The invention discloses a fresh air dehumidifier control method and device, a storage medium and a fresh air dehumidifier, and belongs to the technical field of fresh air fans. When the fresh air dehumidifier is in a refrigeration dehumidification mode, the current indoor temperature and the current indoor humidity are obtained; and when the current indoor temperature does not reach the temperature demand and the current indoor humidity reaches the humidity demand, the operation parameters of the fresh air dehumidifier are adjusted, so that the fresh air dehumidifier is prevented from over-dehumidification operation, the temperature control and the humidity control are independently controlled based on the temperature demand and the humidity demand, the indoor humidity can not be reduced when the humidity demand is reached and the temperature is controlled, and over-dehumidification can be effectively prevented.
Description
Technical Field
The invention relates to the technical field of fresh air fans, in particular to a fresh air dehumidifier control method and device, a storage medium and a fresh air dehumidifier.
Background
The traditional fresh air dehumidifier operates in a refrigeration mode to realize fresh air refrigeration and dehumidification, and generally controls refrigeration output capacity through temperature regulation, for example, the frequency of a compressor is determined according to the difference between indoor temperature and set temperature. On the other hand, although the air can be dehumidified, the dehumidification capability is not controllable.
The existing fresh air dehumidifier is used for refrigerating, cooling and dehumidifying through a heat pump, and fresh air temperature and dehumidification can not be controlled independently, so that humidity can not be controlled when temperature is controlled, and temperature can not be controlled when humidity is controlled. When the user has accurate requirements on the temperature and humidity, the existing fresh air dehumidifier is likely to generate over-dehumidification phenomenon when in operation, namely the temperature does not reach the target, but the humidity is lower than the target.
The foregoing is provided merely for the purpose of facilitating understanding of the technical solutions of the present invention and is not intended to represent an admission that the foregoing is prior art.
Disclosure of Invention
The invention mainly aims to provide a control method and device for a fresh air dehumidifier, a storage medium and the fresh air dehumidifier, and aims to solve the technical problem that the dehumidification phenomenon can occur due to uncontrollable dehumidification capacity in the prior art.
In order to achieve the above purpose, the invention provides a fresh air dehumidifier control method, which comprises the following steps:
when the fresh air dehumidifier is in a refrigeration dehumidification mode, acquiring the current indoor temperature and the current indoor humidity; and
When the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement, the operation parameters of the fresh air dehumidifier are adjusted so that the fresh air dehumidifier can be prevented from over-dehumidification operation.
Optionally, the fresh air dehumidifier is provided with a blower;
The adjusting the operation parameters of the fresh air dehumidifier comprises the following steps:
calculating a humidity difference between the current indoor humidity and the set humidity; and
And lifting the rotating speed of the air blower according to the humidity difference value.
Optionally, the increasing the rotation speed of the blower according to the humidity difference value includes:
determining the rotation speed lifting amplitude according to the humidity difference value; and
And lifting the rotating speed of the air blower according to a preset period based on the rotating speed lifting amplitude.
Optionally, the fresh air dehumidification includes a first heat exchange system and a second heat exchange system, the first heat exchange system and the second heat exchange system are both provided with compressors, and when the fresh air blower is in a refrigeration dehumidification mode, the first heat exchange system and the second heat exchange system both operate in the refrigeration dehumidification mode;
The adjusting the operation parameters of the fresh air dehumidifier comprises the following steps:
Judging whether the compressor of the first heat exchange system or the compressor of the second heat exchange system has the frequency-raising requirement according to the current indoor temperature and the set temperature; and
And if the frequency exists, controlling the frequency of the compressor of the first heat exchange system or the frequency of the compressor of the second heat exchange system to be maintained at the current frequency.
Optionally, the first heat exchange system and the second heat exchange system are also provided with throttling elements;
The operation parameters of the fresh air dehumidifier are adjusted, and the fresh air dehumidifier further comprises:
And when the current indoor humidity is smaller than the set humidity or the current indoor humidity has a decreasing trend, increasing the opening of the throttling element of the first heat exchange system or the opening of the throttling element of the second heat exchange system according to the target opening.
Optionally, before the increasing the opening of the throttling element of the first heat exchange system or the opening of the throttling element of the second heat exchange system according to the target opening, the method further includes:
Determining a target opening according to a humidity difference value between the current indoor humidity and the set humidity;
Or alternatively, the first and second heat exchangers may be,
And determining a target opening according to the variation difference value of the current indoor humidity.
Optionally, when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement, the operation parameters of the fresh air dehumidifier are adjusted, so that before the anti-over dehumidification operation of the fresh air dehumidifier, the method further comprises:
Acquiring current indoor humidity;
calculating a temperature difference between the current indoor temperature and the set temperature and a humidity difference between the current indoor humidity and the set humidity;
determining a first compressor frequency variation according to the temperature difference;
determining a second compressor frequency variation according to the humidity difference;
Taking the maximum value of the first compressor frequency variation and the second compressor frequency variation as a target compressor frequency variation;
and controlling the first heat exchange system and the second heat exchange system to operate according to the frequency variation of the target compressor.
Optionally, when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement, the operation parameters of the fresh air dehumidifier are adjusted, so that before the anti-over dehumidification operation of the fresh air dehumidifier, the method further comprises:
When the current indoor temperature does not reach a set temperature or the temperature difference between the current indoor temperature and the set temperature does not reach a preset temperature difference threshold value, judging that the current indoor temperature does not reach a temperature requirement; and
And when the current indoor humidity reaches the set humidity or the humidity difference between the current indoor humidity and the set humidity reaches a preset humidity difference threshold value, judging that the current indoor humidity does not reach the humidity requirement.
In addition, in order to achieve the above object, the present invention also provides a fresh air dehumidifier control device, the fresh air dehumidifier control device comprising:
the acquisition module is used for acquiring the current indoor temperature and the current indoor humidity when the fresh air dehumidifier is in the refrigeration dehumidification mode; and
And the control module is used for adjusting the operation parameters of the fresh air dehumidifier when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement so as to enable the fresh air dehumidifier to prevent over-dehumidification operation.
In addition, in order to achieve the above object, the present invention also provides a fresh air dehumidifier, which includes: the system comprises a memory, a processor and a fresh air dehumidifier control program stored on the memory and running on the processor, wherein the fresh air dehumidifier control program is configured to realize the fresh air dehumidifier control method.
In addition, in order to achieve the above object, the present invention also provides a storage medium, on which a fresh air dehumidifier control program is stored, which when executed by a processor, implements the fresh air dehumidifier control method as described above.
When the fresh air dehumidifier is in a refrigeration dehumidification mode, the current indoor temperature and the current indoor humidity are obtained; and when the current indoor temperature does not reach the temperature demand and the current indoor humidity reaches the humidity demand, the operation parameters of the fresh air dehumidifier are adjusted, so that the fresh air dehumidifier is prevented from over-dehumidification operation, the temperature control and the humidity control are independently controlled based on the temperature demand and the humidity demand, the indoor humidity can not be reduced when the humidity demand is reached and the temperature is controlled, and over-dehumidification can be effectively prevented.
Drawings
FIG. 1 is a schematic structural diagram of a fresh air dehumidifier in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a first embodiment of a method for controlling a fresh air dehumidifier according to the present invention;
FIG. 3 is a schematic diagram of a fresh air dehumidifier according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of a fresh air dehumidifier according to an embodiment of the control method of the fresh air dehumidifier of the present invention;
FIG. 5 is a schematic flow chart of a second embodiment of a method for controlling a fresh air dehumidifier of the present invention;
FIG. 6 is a schematic flow chart of a third embodiment of a method for controlling a fresh air dehumidifier of the present invention;
Fig. 7 is a block diagram of a first embodiment of a control device for a fresh air dehumidifier according to the present invention.
Description of the reference numerals
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a fresh air dehumidifier in a hardware operation environment according to an embodiment of the present invention.
As shown in fig. 1, the fresh air dehumidifier may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further 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 high-speed random access Memory (Random Access Memory, RAM) Memory or a stable Non-Volatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the configuration shown in FIG. 1 is not limiting and may include more or fewer components than shown, or certain components may be combined, or a different arrangement of components.
As shown in fig. 1, an operating system, a network communication module, a user interface module, and a fresh air dehumidifier control program may be included in the memory 1005 as one type of storage medium.
In the fresh air dehumidifier 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 fresh air dehumidifier of the present invention may be disposed in the fresh air dehumidifier, and the fresh air dehumidifier invokes the fresh air dehumidifier control program stored in the memory 1005 through the processor 1001, and executes the fresh air dehumidifier control method provided by the embodiment of the present invention.
The embodiment of the invention provides a fresh air dehumidifier control method, and referring to fig. 2, fig. 2 is a flow chart of a first embodiment of the fresh air dehumidifier control method.
In this embodiment, the method for controlling the fresh air dehumidifier includes the following steps:
Step S10: and when the fresh air dehumidifier is in the refrigeration dehumidification mode, acquiring the current indoor temperature and the current indoor humidity.
In this embodiment, the execution body of the embodiment may be the fresh air dehumidifier control device, where the fresh air dehumidifier control device has functions of data processing, data communication, program running, and the like, and the fresh air dehumidifier control device may be a controller inside the fresh air dehumidifier. Of course, other devices with similar functions may be used, and the implementation conditions are not limited thereto. For convenience of explanation, this embodiment will be described with reference to a fresh air dehumidifier control apparatus.
It should be noted that, the conventional fresh air dehumidifier is operated in a refrigeration mode to realize fresh air refrigeration and dehumidification, and generally controls the refrigeration output capability through temperature adjustment, for example, the compressor frequency is determined according to the difference between the indoor temperature and the set temperature. On the other hand, although the air can be dehumidified, the dehumidification capability is not controllable. For example, when the indoor temperature does not reach the user demand, but the indoor humidity is already lower than the user demand, the indoor humidity is further reduced if the cooling is continued.
In order to solve the technical problem, in this embodiment, through independent temperature control and humidity control, independent control is performed to the indoor temperature or indoor humidity which does not reach the user requirement, so that the indoor humidity can be prevented from being influenced while the temperature is controlled.
In a specific implementation, in this embodiment, a fresh air dehumidifier structure is first provided, as shown in fig. 3 and fig. 4. Fresh air equipment 100 includes casing and first heat transfer system 10, be equipped with air supply channel 4 in the casing, first heat transfer system 10 includes: the fresh air heat exchanger structure is positioned in the air supply channel 4 and is provided with a refrigerant pipeline; the first switching device is communicated with the fresh air heat exchanger structure and is used for switching the flow direction of the refrigerant in the fresh air heat exchanger structure; in different operation modes of the first heat exchange system 10, the refrigerant of the first heat exchange system 10 passes through the refrigerant pipeline located at the downstream of the air supply channel 4 and then passes through the refrigerant pipeline located at the upstream of the air supply channel 4. The air supply channel 4 is a channel through which the fresh air device 100 sends outdoor fresh air into the room, and the air exhaust channel 5 is a channel through which the fresh air device 100 discharges indoor air to the outside. The fresh air heat exchanger structure is arranged in the first refrigerant flow path, and the first heat exchange system 10 further comprises: the first compressor 11, the first heat exchange module 12 and the reversing device 3, wherein the first compressor 11 is arranged in the first refrigerant flow path and is provided with a first exhaust port and a first return port; the first heat exchange module 12 is disposed in the first refrigerant flow path and is in communication with the first switching device, the first heat exchange module 12 includes a first outdoor heat exchanger 35 and a heat recovery heat exchanger 36 which are disposed in series, the heat recovery heat exchanger 36 is disposed in the exhaust passage 5, the first outdoor heat exchanger 35 is disposed outside the housing (main housing), the first compressor 11 is mounted in the exhaust passage 5 or outside the housing (main housing), the heat recovery heat exchanger 36 is disposed in the exhaust passage 5, after heat exchange between the air in the exhaust passage 5 and the heat recovery heat exchanger 36 occurs, then the air is discharged from the air discharge channel 5, so that the heat of the air discharged from the air discharge channel 5 can be recovered; the reversing device 3 is connected to the first exhaust port, the first return port, the first heat exchange module 12 and the first switching device, and the reversing device 3 is used for switching the flow direction of the refrigerant, so that the refrigerant passes through the first heat exchange module 12 and then the first switching device, or so that the refrigerant passes through the first switching device and then passes through the first heat exchange module 12. In order to realize the reheat dehumidification function of the fresh air device 100, the fresh air heat exchanger structure comprises a first fresh air heat exchanger 13 and a second fresh air heat exchanger 14 which are sequentially connected in series; the first fresh air heat exchanger 13 is located at the downstream of the air supply channel 4 relative to the second fresh air heat exchanger 14, the outflow port 34 is connected to the first fresh air heat exchanger 13, and the inflow port 33 is connected to the second fresh air heat exchanger 14. In order to reduce control elements in the fresh air equipment 100 and promote stability of the fresh air equipment 100, the first switching device has a first communication port 31, a second communication port 32, an inflow port 33 and an outflow port 34, the fresh air heat exchanger structure communicates the outflow port 34 and the inflow port 33, the first switching device comprises: a first check valve 18, a second check valve 19, a third check valve 1, and a fourth check valve 2, the first check valve 18 being connected between the first communication port 31 and the inflow port 33, the first check valve 18 being in communication in a direction from the inflow port 33 to the first communication port 31; the second check valve 19 is connected between the first communication port 31 and the outflow port 34, and the second check valve 19 is communicated in the direction from the first communication port 31 to the outflow port 34; the third check valve 1 is connected between the inflow port 33 and the second communication port 32, and the third check valve 1 is communicated in the direction from the inflow port 33 to the second communication port 32; the fourth one-way valve 2 is connected between the outflow port 34 and the second communication port 32, and the fourth one-way valve 2 is conducted in the direction from the second communication port 32 to the outflow port 34, so that the first switching device is composed of one-way valves, and compared with the four-way valve or two three-way valve, no control element is needed, and the stability of the fresh air device 100 is higher.
The fresh air heat exchanger structure comprises a first fresh air heat exchanger 13 and a second fresh air heat exchanger 14 which are sequentially connected in series; the first fresh air heat exchanger 13 is located at the downstream of the air supply channel 4 relative to the second fresh air heat exchanger 14, the outflow port 34 is connected to the first fresh air heat exchanger 13, and the inflow port 33 is connected to the second fresh air heat exchanger 14.
The first heat exchange system 10 further includes a first throttling element 15 disposed on the first refrigerant flow path, the first throttling element 15 being located between the first heat exchange module 12 and the first switching device. The first heat exchange system 10 further includes a second throttling element 16, where the second throttling element 16 is disposed on a serial flow path between the first fresh air heat exchanger 13 and the second fresh air heat exchanger 14, so as to throttle the refrigerant flowing out of the first fresh air heat exchanger 13.
Further, the fresh air device 100 further includes a second heat exchange system 20, a second refrigerant flow path is formed on the second heat exchange system 20, the second heat exchange system 20 includes a second outdoor heat exchanger 21, a second compressor 27, a third fresh air heat exchanger 22 and a fourth fresh air heat exchanger 23 which are disposed in the second refrigerant flow path, the third fresh air heat exchanger 22 and the fourth fresh air heat exchanger 23 are disposed in the air supply channel 4, and at this time, the second outdoor heat exchanger 21 and the second compression/27 may also be disposed in the air exhaust channel 5, so that the fresh air device 100 does not need an outdoor unit at all, and saves positions.
The second heat exchange system 20 further includes a second switching device, configured to switch the second outdoor heat exchanger 21 to be connected to the third fresh air heat exchanger 22 or to be simultaneously connected to the third fresh air heat exchanger 22 and the fourth fresh air heat exchanger 23. The second switching device comprises a fourth throttling element 24 and a fifth one-way valve 25 (the fifth one-way valve 25 can be replaced by an electromagnetic valve), and the fourth throttling element 24 is arranged on the second refrigerant flow path and is positioned between the third fresh air heat exchanger 22 and the fourth fresh air heat exchanger 23; the fifth check valve 25 is connected in parallel with the third fresh air heat exchanger 22 and the fourth throttling element 24, and the conducting direction of the fifth check valve 25 is from the fourth fresh air heat exchanger 23 to the second outdoor heat exchanger 21.
So set up, two sets of heat transfer systems exist two evaporators in air supply passageway, have two evaporating temperature, and the upper reaches is higher than low reaches evaporating temperature, and two-stage evaporation refrigeration has promoted the energy consumption greatly in one-level evaporation refrigeration's scheme compared. And the upstream heat exchange system can preheat or precool air first and then exchange heat through the downstream heat exchange system, so that the air outlet temperature can be effectively reduced in a refrigeration mode and the air outlet temperature can be improved in a heating mode. Of course, the heat exchange system at the upstream may cool the air, and the heat exchange system at the downstream may heat the air, thereby realizing the reheat dehumidification function.
Because the first heat exchange system 10 and the second heat exchange system 20 coexist, two outdoor units are often required to be arranged on the first heat exchange system 10 and the second heat exchange system 20, so that the two outdoor units are installed to occupy two outdoor units, occupy too many positions, and are installed, the workload of installation is also large, therefore, the shell comprises a main machine shell and an outdoor unit shell, the main machine shell is internally provided with the air supply channel 4 and the air exhaust channel 5, the first heat exchange system 10 also comprises a first compressor 11 and a first heat exchange module 12, the first heat exchange module 12 comprises a first outdoor heat exchanger 35 and a heat recovery heat exchanger which are arranged in series, the heat recovery heat exchanger is arranged in the air exhaust channel 5, the fourth heat exchanger 23 is arranged in the air supply channel 4, the first compressor 11, the first outdoor heat exchanger 35, the second compressor 27, the second outdoor heat exchanger 21 and the outdoor fan 37 are all arranged in the outdoor housing, so that the heat recovery heat exchanger 36 is arranged in the exhaust passage 5, the fourth fresh air heat exchanger 23 is arranged in the air supply passage 4, the first compressor 11, the first outdoor heat exchanger 35, the second compressor 27, the second outdoor heat exchanger 21 and the outdoor fan 37 are all arranged in the outdoor housing, part of the parts of the outdoor unit is arranged in the exhaust passage 5, the rest of the parts are arranged in the housing of the outdoor unit, and the requirements of the first heat exchange system 10 and the second heat exchange system 20 can be met only by arranging one outdoor unit, so that the occupied positions of the outdoor unit are reduced, and the workload of the outdoor unit installation is reduced.
In a specific implementation, the embodiment aims at preventing over-dehumidification in a refrigeration dehumidification mode, so that whether the fresh air dehumidifier is in the refrigeration dehumidification mode needs to be detected in the embodiment, and if yes, the current indoor temperature and the current indoor humidity are further obtained by setting a temperature and humidity sensor in the fresh air dehumidifier.
Step S20: when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement, the operation parameters of the fresh air dehumidifier are adjusted so that the fresh air dehumidifier can be prevented from over-dehumidification operation.
When the fresh air dehumidifier is in a refrigeration dehumidification mode, the heat exchange system of the fresh air dehumidifier operates in a cooling dehumidification mode (namely a refrigeration dehumidification mode), namely the heat exchange system operates in a refrigeration mode, and the temperature of at least one fresh air heat exchanger arranged in the air supply channel is smaller than the dew point temperature at the upstream of the at least one fresh air heat exchanger.
The operation parameters of the fresh air dehumidifier are adjusted so that the fresh air dehumidifier can prevent over-dehumidification operation, and the method comprises the following steps:
And controlling the heat exchange system of the fresh air dehumidifier to operate in a cooling and non-dehumidifying mode (namely a refrigerating and non-dehumidifying mode), namely controlling the heat exchange system to operate in a refrigerating mode and enabling the temperature of a fresh air heat exchanger arranged in the air supply channel to be greater than the dew point temperature at the upstream of the fresh air heat exchanger.
In a specific implementation, in this embodiment, whether the temperature requirement is met or not can be judged according to the current indoor temperature, and whether the humidity requirement is met or not is judged according to the current indoor humidity, if the current indoor temperature does not meet the temperature requirement and the current indoor humidity meets the humidity requirement, it is stated that the indoor temperature is higher at this time, the indoor temperature still needs to be cooled, but the indoor humidity does not need to be reduced, in this case, the operation parameters of the fresh air dehumidifier can be adjusted, so that the fresh air dehumidifier can perform refrigeration operation, and meanwhile, the indoor humidity cannot be reduced when the fresh air dehumidifier is in refrigeration operation.
Further, in this embodiment, the current indoor temperature is compared with the set temperature, if the current indoor temperature does not reach the set temperature, it may be determined that the current indoor temperature does not reach the temperature requirement, in this embodiment, a temperature difference between the current indoor temperature and the set temperature may also be calculated, if the temperature difference does not reach a preset temperature difference threshold, it may also be determined that the current indoor temperature does not reach the temperature requirement, where the set temperature and the preset temperature difference threshold may be set accordingly according to the actual requirement, and this embodiment is not limited. In this embodiment, the determining process of whether the current indoor humidity does not reach the humidity requirement may refer to the determining process of whether the current indoor temperature does not reach the temperature requirement, where the set humidity and the preset humidity difference threshold may be set accordingly according to the actual requirement, which is not limited in this embodiment.
Further, when the operation mode of the fresh air dehumidifier is adjusted to the over-dehumidification preventing operation mode, the frequency of the compressor needs to be adjusted accordingly, specifically, the frequency of the compressor of the first heat exchange system or the frequency of the compressor of the second heat exchange system can be adjusted according to the frequency variation of the target compressor, so that the fresh air dehumidifier is subjected to over-dehumidification preventing operation.
In an alternative embodiment, a temperature difference between the current indoor temperature and the set temperature and a humidity difference between the current indoor humidity and the set humidity may be calculated, then the first compressor frequency variation is determined according to the temperature difference, the second compressor frequency variation is determined according to the humidity difference, and finally the maximum value of the first compressor frequency variation and the second compressor frequency variation is taken as the target compressor frequency variation.
In the embodiment, when the fresh air dehumidifier is in a refrigeration dehumidification mode, the current indoor temperature and the current indoor humidity are obtained; and when the current indoor temperature does not reach the temperature demand and the current indoor humidity reaches the humidity demand, the operation parameters of the fresh air dehumidifier are adjusted, so that the fresh air dehumidifier is prevented from over-dehumidification operation, the temperature control and the humidity control are independently controlled based on the temperature demand and the humidity demand, the indoor humidity can not be reduced when the humidity demand is reached and the temperature is controlled, and over-dehumidification can be effectively prevented.
Referring to fig. 5, fig. 5 is a schematic flow chart of a second embodiment of a method for controlling a fresh air dehumidifier according to the present invention.
Based on the above first embodiment, in the method for controlling a fresh air dehumidifier of the present embodiment, the step S20 specifically includes:
step S201: and calculating a humidity difference between the current indoor humidity and the set humidity.
Step S202: and lifting the rotating speed of the air blower according to the humidity difference value.
In a specific implementation, the fresh air dehumidifier in this embodiment is provided with a blower, and adjusting the operation parameter of the fresh air dehumidifier may be adjusting the rotation speed of the blower. Specifically, in this embodiment, a humidity difference between the current indoor humidity and the set humidity may be calculated first, then the rotation speed of the blower is increased according to the humidity difference, the humidity difference is used to determine the magnitude of the increase in the rotation speed of the blower, and then the rotation speed of the blower is increased according to the magnitude of the increase in the rotation speed and a preset period. For example, assuming that the rotation speed increasing amplitude is a and the preset period is T, the rotation speed of the blower is increased by a every interval period T, where the preset period and the correspondence between the humidity difference and the rotation speed increasing amplitude may be set accordingly according to the actual requirement, which is not limited in this embodiment.
The embodiment calculates the humidity difference between the current indoor humidity and the set humidity; determining the rotation speed lifting amplitude according to the humidity difference value; and lifting the rotating speed of the air blower according to a preset period based on the rotating speed lifting amplitude, and adjusting the rotating speed of the air blower according to the difference between the indoor humidity and the set humidity so as to prevent over-dehumidification.
Referring to fig. 6, fig. 6 is a schematic flow chart of a third embodiment of a method for controlling a fresh air dehumidifier according to the present invention.
Based on the first embodiment, a third embodiment of a method for controlling a fresh air dehumidifier is provided.
In this embodiment, the step S20 further includes:
Step S203: judging whether the compressor of the first heat exchange system or the compressor of the second heat exchange system has the frequency-raising requirement according to the current indoor temperature and the set temperature.
Step S204: and if the frequency exists, controlling the frequency of the compressor of the first heat exchange system or the frequency of the compressor of the second heat exchange system to be maintained at the current frequency.
When the fresh air fan is in the refrigeration and dehumidification mode, the first heat exchange system and the second heat exchange system both operate in the refrigeration and dehumidification mode.
In the process of the cooling operation of the first heat exchange system and the second heat pump, in this embodiment, whether the compressor needs to be increased in frequency is determined according to the current indoor temperature and the set temperature, if the current indoor temperature is greater than the set temperature, it is determined that the compressor needs to be increased in frequency continuously, and if the current indoor temperature has reached the set temperature, it is determined that the compressor does not need to be increased in frequency continuously at this time. And further, when it is determined that there is an up-conversion requirement, the up-conversion is not performed on the first heat exchange system or the second heat exchange system in the embodiment, but the frequency of the compressor of the first heat exchange system or the frequency of the compressor of the second heat exchange system is maintained at the current frequency. If the frequency-increasing requirement does not exist, the compressor of the first heat exchange system or the compressor of the second heat exchange system can be controlled to keep normal operation, and when the compressor needs to be frequency-increased, the frequency-increased operation is performed normally. According to the embodiment, the first heat exchange system or the second heat exchange system is prevented from ascending frequency, so that the first heat exchange system is enabled to operate in refrigeration and the second heat exchange system, and the temperature of the fresh air heat exchanger arranged in the air supply channel is enabled to be larger than the dew point temperature at the upstream of the fresh air heat exchanger.
Further, the first heat exchange system and the second heat exchange system in this embodiment are both further provided with a throttling element, and in this embodiment, the adjustment of the operation parameter of the fresh air dehumidifier may also be to adjust the opening of the throttling element of the first heat exchange system (the throttling element is a throttling element playing a role in the first heat exchange system) or the opening of the throttling element of the second heat exchange system (the throttling element is a throttling element playing a role in the second heat exchange system), so as to implement over-dehumidification adjustment by changing the opening of the throttling element. In this embodiment, when the indoor humidity is low or the indoor humidity is reduced, the opening degree of the throttling element may be increased, specifically, the low indoor humidity means that the current indoor humidity is smaller than the set humidity, the reduced indoor humidity means that the current indoor humidity has a decreasing trend, that is, the indoor humidity at the current moment is smaller than the indoor humidity at the previous moment, in this case, the opening degree of the throttling element of the first heat exchange system or the opening degree of the throttling element of the second heat exchange system is increased according to the target opening degree, so that both the first heat exchange system and the second heat exchange system are operated, and the temperature of the fresh air heat exchanger disposed in the air supply channel is greater than the dew point temperature at the upstream of the fresh air heat exchanger.
It should be noted that, in this embodiment, the target opening may be determined according to a humidity difference between the current indoor humidity and the set humidity, and may also be determined according to a change difference of the current indoor humidity, for example, an indoor humidity difference between the current time and the previous time.
According to the embodiment, when the first heat exchange system and the second heat pump are in refrigeration operation, the frequency of the compressor of the first heat exchange system or the frequency of the compressor of the second heat exchange system can be increased, excessive dehumidification can be prevented by increasing the opening degree of the expansion valve of the first heat exchange system or the opening degree of the expansion valve of the second heat exchange system, and the fresh air dehumidifier can be ensured to cool air without the phenomenon of excessive dehumidification.
In addition, the embodiment of the invention also provides a storage medium, wherein a fresh air dehumidifier control program is stored on the storage medium, and the fresh air dehumidifier control program realizes the steps of the fresh air dehumidifier control method when being executed by a processor.
Because the storage medium adopts all the technical schemes of all the embodiments, the storage medium has at least all the beneficial effects brought by the technical schemes of the embodiments, and the description is omitted here.
Referring to fig. 7, fig. 7 is a block diagram illustrating a first embodiment of a control device for a fresh air dehumidifier according to the present invention.
As shown in fig. 7, a fresh air dehumidifier control apparatus according to an embodiment of the present invention includes:
the acquisition module 10 is configured to acquire a current indoor temperature and a current indoor humidity when the fresh air dehumidifier is in a cooling and dehumidifying mode.
And the control module 20 is used for adjusting the operation parameters of the fresh air dehumidifier when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement so as to enable the fresh air dehumidifier to prevent over-dehumidification operation.
In the embodiment, when the fresh air dehumidifier is in a refrigeration dehumidification mode, the current indoor temperature and the current indoor humidity are obtained; and when the current indoor temperature does not reach the temperature demand and the current indoor humidity reaches the humidity demand, the operation parameters of the fresh air dehumidifier are adjusted, so that the fresh air dehumidifier is prevented from over-dehumidification operation, the temperature control and the humidity control are independently controlled based on the temperature demand and the humidity demand, the indoor humidity can not be reduced when the humidity demand is reached and the temperature is controlled, and over-dehumidification can be effectively prevented.
It should be understood that the foregoing is illustrative only and is not limiting, and that in specific applications, those skilled in the art may set the invention as desired, and the invention is not limited thereto.
It should be noted that the above-described working procedure is merely illustrative, and does not limit the scope of the present invention, and in practical application, a person skilled in the art may select part or all of them according to actual needs to achieve the purpose of the embodiment, which is not limited herein.
In addition, technical details not described in detail in the embodiment may refer to the method for controlling the fresh air dehumidifier provided in any embodiment of the present invention, which is not described herein.
Furthermore, it should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The foregoing embodiment numbers of the present invention are merely for the purpose of description, and do not represent the advantages or disadvantages of the embodiments.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solution of the present invention may be embodied essentially or in a part contributing to the prior art in the form of a software product stored in a storage medium (e.g. Read Only Memory)/RAM, magnetic disk, optical disk) and including several instructions for causing a terminal device (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the method according to the embodiments of the present invention.
The foregoing description is only of the preferred embodiments of the present invention, and is not intended to limit the scope of the invention, but rather is intended to cover any equivalents of the structures or equivalent processes disclosed herein or in the alternative, which may be employed directly or indirectly in other related arts.
Claims (11)
1. The fresh air dehumidifier control method is characterized by comprising the following steps of:
when the fresh air dehumidifier is in a refrigeration dehumidification mode, acquiring the current indoor temperature and the current indoor humidity; and
When the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement, the operation parameters of the fresh air dehumidifier are adjusted so that the fresh air dehumidifier can be prevented from over-dehumidification operation.
2. The method for controlling a fresh air dehumidifier according to claim 1, wherein the fresh air dehumidifier is provided with a blower;
The adjusting the operation parameters of the fresh air dehumidifier comprises the following steps:
calculating a humidity difference between the current indoor humidity and the set humidity; and
And lifting the rotating speed of the air blower according to the humidity difference value.
3. The method of claim 2, wherein said increasing the rotational speed of the blower based on the humidity difference comprises:
determining the rotation speed lifting amplitude according to the humidity difference value; and
And lifting the rotating speed of the air blower according to a preset period based on the rotating speed lifting amplitude.
4. The method for controlling a fresh air dehumidifier of claim 1, wherein the fresh air dehumidification comprises a first heat exchange system and a second heat exchange system, wherein the first heat exchange system and the second heat exchange system are both provided with compressors, and wherein the first heat exchange system and the second heat exchange system both operate in a refrigeration dehumidification mode when the fresh air blower is in the refrigeration dehumidification mode;
The adjusting the operation parameters of the fresh air dehumidifier comprises the following steps:
Judging whether the compressor of the first heat exchange system or the compressor of the second heat exchange system has the frequency-raising requirement according to the current indoor temperature and the set temperature; and
And if the frequency exists, controlling the frequency of the compressor of the first heat exchange system or the frequency of the compressor of the second heat exchange system to be maintained at the current frequency.
5. The method of controlling a fresh air dehumidifier of claim 4, wherein the first heat exchange system and the second heat exchange system are each further provided with a throttling element;
The operation parameters of the fresh air dehumidifier are adjusted, and the fresh air dehumidifier further comprises:
And when the current indoor humidity is smaller than the set humidity or the current indoor humidity has a decreasing trend, increasing the opening of the throttling element of the first heat exchange system or the opening of the throttling element of the second heat exchange system according to the target opening.
6. The method of controlling a fresh air dehumidifier according to claim 5, wherein before increasing the opening of the throttling element of the first heat exchange system or the opening of the throttling element of the second heat exchange system according to the target opening, the method further comprises:
Determining a target opening according to a humidity difference value between the current indoor humidity and the set humidity;
Or alternatively, the first and second heat exchangers may be,
And determining a target opening according to the variation difference value of the current indoor humidity.
7. The method for controlling a fresh air dehumidifier of claim 4, wherein adjusting the operating parameters of the fresh air dehumidifier when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement, so that the fresh air dehumidifier is prevented from over-dehumidification operation, further comprises:
Acquiring current indoor humidity;
calculating a temperature difference between the current indoor temperature and the set temperature and a humidity difference between the current indoor humidity and the set humidity;
determining a first compressor frequency variation according to the temperature difference;
determining a second compressor frequency variation according to the humidity difference;
Taking the maximum value of the first compressor frequency variation and the second compressor frequency variation as a target compressor frequency variation;
and controlling the first heat exchange system and the second heat exchange system to operate according to the frequency variation of the target compressor.
8. The method according to any one of claims 1 to 7, wherein when the current indoor temperature does not reach a temperature requirement and the current indoor humidity reaches a humidity requirement, adjusting an operation parameter of the fresh air dehumidifier so that the fresh air dehumidifier is prevented from over-dehumidification operation, further comprising:
When the current indoor temperature does not reach a set temperature or the temperature difference between the current indoor temperature and the set temperature does not reach a preset temperature difference threshold value, judging that the current indoor temperature does not reach a temperature requirement; and
And when the current indoor humidity reaches the set humidity or the humidity difference between the current indoor humidity and the set humidity reaches a preset humidity difference threshold value, judging that the current indoor humidity does not reach the humidity requirement.
9. The utility model provides a new trend dehumidifier controlling means, its characterized in that, new trend dehumidifier controlling means includes:
the acquisition module is used for acquiring the current indoor temperature and the current indoor humidity when the fresh air dehumidifier is in the refrigeration dehumidification mode; and
And the control module is used for adjusting the operation parameters of the fresh air dehumidifier when the current indoor temperature does not reach the temperature requirement and the current indoor humidity reaches the humidity requirement so as to enable the fresh air dehumidifier to prevent over-dehumidification operation.
10. A fresh air dehumidifier, characterized in that the fresh air dehumidifier comprises: a memory, a processor, and a fresh air dehumidifier control program stored on the memory and running on the processor, the fresh air dehumidifier control program configured to implement the fresh air dehumidifier control method of any one of claims 1 to 7.
11. A storage medium, wherein a fresh air dehumidifier control program is stored on the storage medium, and when executed by a processor, the fresh air dehumidifier control program implements the fresh air dehumidifier control method according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211538292.5A CN118129297A (en) | 2022-12-01 | 2022-12-01 | Fresh air dehumidifier control method and device, storage medium and fresh air dehumidifier |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211538292.5A CN118129297A (en) | 2022-12-01 | 2022-12-01 | Fresh air dehumidifier control method and device, storage medium and fresh air dehumidifier |
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| CN118129297A true CN118129297A (en) | 2024-06-04 |
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| CN202211538292.5A Pending CN118129297A (en) | 2022-12-01 | 2022-12-01 | Fresh air dehumidifier control method and device, storage medium and fresh air dehumidifier |
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- 2022-12-01 CN CN202211538292.5A patent/CN118129297A/en active Pending
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