CN114111080A - Air refrigeration cycle device and control method thereof - Google Patents
Air refrigeration cycle device and control method thereof Download PDFInfo
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- CN114111080A CN114111080A CN202111454091.2A CN202111454091A CN114111080A CN 114111080 A CN114111080 A CN 114111080A CN 202111454091 A CN202111454091 A CN 202111454091A CN 114111080 A CN114111080 A CN 114111080A
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- 238000005057 refrigeration Methods 0.000 title claims abstract description 132
- 238000000034 method Methods 0.000 title claims abstract description 54
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 237
- 238000005507 spraying Methods 0.000 claims abstract description 185
- 238000000889 atomisation Methods 0.000 claims abstract description 89
- 239000007921 spray Substances 0.000 claims abstract description 47
- 239000003595 mist Substances 0.000 claims abstract description 9
- 230000015654 memory Effects 0.000 claims description 21
- 238000012545 processing Methods 0.000 claims description 10
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000004378 air conditioning Methods 0.000 abstract description 7
- 229920006395 saturated elastomer Polymers 0.000 description 15
- 230000008569 process Effects 0.000 description 10
- 239000003507 refrigerant Substances 0.000 description 6
- 238000007906 compression Methods 0.000 description 4
- 239000004215 Carbon black (E152) Substances 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- -1 fluorine-chlorine hydrocarbon Chemical class 0.000 description 3
- 229930195733 hydrocarbon Natural products 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000013256 coordination polymer Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000009834 vaporization Methods 0.000 description 2
- 230000008016 vaporization Effects 0.000 description 2
- 238000009692 water atomization Methods 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
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- 238000010295 mobile communication Methods 0.000 description 1
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- 238000013146 percutaneous coronary intervention Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/002—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
- F25B9/004—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant being air
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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
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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
-
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
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- Engineering & Computer Science (AREA)
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the technical field of air conditioning devices, in particular to an air refrigeration cycle device and a control method thereof. The air refrigeration cycle device includes: a compressor adapted to pressurize a heat exchange medium; the throttling device is suitable for throttling and decompressing the heat exchange medium; the pipeline is sequentially communicated with the compressor, the first heat exchanger, the throttling device and the second heat exchanger; the adjustable water spraying and atomizing device is arranged on the pipeline and is suitable for spraying water mist inside the pipeline. According to the air refrigeration cycle device and the control method thereof, the adjustable water spray atomization device is arranged on the pipeline, and is suitable for spraying water mist to the interior of the pipeline, so that the humidity of the heat exchange medium in the pipeline is changed, the refrigerating capacity is improved, the energy efficiency of the air refrigeration cycle device is greatly improved, and the problem of low refrigerating performance of the air refrigeration cycle device is solved.
Description
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to an air refrigeration cycle device and a control method thereof.
Background
With the development of air conditioning technology, chlorofluorocarbon refrigerants have the defects of damaging the ozone layer of the atmosphere and the like, and are gradually eliminated. Air is taken as one of natural refrigeration working media, has the advantages of rich source, environmental friendliness, easiness in obtaining and the like, is gradually deeply researched as a substitute refrigerant of a fluorine-chlorine hydrocarbon refrigerant, at present, the application field of an air conditioning device taking air as the refrigerant is more and more, and the air conditioning device has the existence of the air conditioning device in many fields such as commerce, industry, buildings, train air conditioners, airplane air conditioners and the like, and meanwhile, the problem of low refrigeration performance of an air refrigeration cycle device is also taken as the research focus of air conditioning equipment.
Disclosure of Invention
Therefore, the technical problem to be solved by the present invention is to overcome the defect of low refrigeration performance of the air refrigeration cycle device in the prior art, so as to provide an air refrigeration cycle device capable of effectively improving the refrigeration performance.
The invention aims to solve another technical problem and overcome the defect of low refrigerating performance of the air refrigerating cycle device in the prior art, thereby providing an air refrigerating cycle control method for effectively improving the refrigerating performance.
In order to solve the above problems, the present invention provides an air refrigeration cycle device adapted to circulate a heat exchange medium therein, the air refrigeration cycle device including:
a compressor adapted to pressurize a heat exchange medium;
the throttling device is suitable for throttling and decompressing the heat exchange medium;
the pipeline is sequentially communicated with the compressor, the first heat exchanger, the throttling device and the second heat exchanger;
the adjustable water spraying and atomizing device is arranged on the pipeline and is suitable for spraying water mist inside the pipeline.
Optionally, the adjustable water spray atomization device is arranged between the first heat exchanger and the throttling device;
and/or the adjustable water spraying atomization device is arranged between the second heat exchanger and the compressor.
Optionally, the method further comprises:
and the temperature and humidity sensor is suitable for acquiring the temperature and the humidity of the heat exchange medium at the outlet end of the adjustable water spraying and atomizing device.
Optionally, the method further comprises:
and the regulator is suitable for regulating the water spraying quantity of the adjustable water spraying atomization device according to the feedback signal.
Optionally, the heat exchange medium is air.
The invention also provides an air refrigeration cycle control method, the air refrigeration cycle device comprises a compressor, a throttling device, a pipeline and an adjustable water spraying and atomizing device, and the compressor is suitable for pressurizing a heat exchange medium; the throttling device is suitable for throttling and decompressing the heat exchange medium; the pipeline is sequentially communicated with the compressor, the first heat exchanger, the throttling device and the second heat exchanger; the adjustable water spraying and atomizing device is arranged on the pipeline and is suitable for spraying water mist inside the pipeline, and the air refrigeration cycle control method comprises the following steps:
acquiring state data of a heat exchange medium, wherein the state data comprises the temperature and the humidity of the heat exchange medium;
judging whether the state data exceeds a preset value;
and correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result.
Optionally, the adjustable water spray atomization device is arranged between the first heat exchanger and the throttling device; or the adjustable water spraying atomization device is arranged between the second heat exchanger and the compressor;
the correspondingly adjusting the water spraying amount of the adjustable water spraying atomization device based on the state data and the judgment result comprises:
when the state data exceed a preset state value, acquiring a first set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the first set;
and when the state data do not exceed a preset state value, acquiring a second set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the second set, wherein the second set comprises the corresponding relation between the state data of the M sections and the water spraying quantity of the adjustable water spraying atomization device.
Optionally, the adjustable water spray atomizing device comprises a first adjustable water spray atomizing device and a second adjustable water spray atomizing device, wherein the first adjustable water spray atomizing device is arranged between the first heat exchanger and the throttling device; the second adjustable water spraying atomization device is arranged between the second heat exchanger and the compressor;
the correspondingly adjusting the water spraying amount of the adjustable water spraying atomization device based on the state data and the judgment result comprises:
when the state data exceed a preset state value, acquiring a third set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the third set;
and when the state data does not exceed a preset state value, acquiring a fourth set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the fourth set, wherein the fourth set comprises the corresponding relation between the state data of the N intervals and the water spraying quantity of the adjustable water spraying atomization device.
The present invention also provides an air refrigeration cycle control apparatus, including:
the system comprises an acquisition module, a storage module and a control module, wherein the acquisition module is used for acquiring state data of a heat exchange medium, and the state data comprises the temperature and the humidity of the heat exchange medium;
the first processing module is used for judging whether the state data exceeds a preset value;
and the second processing module is used for correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result.
The present invention also provides an electronic device, comprising:
a memory and a processor, wherein the memory and the processor are communicatively connected, the memory stores computer instructions, and the processor executes the computer instructions to perform the air refrigeration cycle control method or the method of any one of the alternative embodiments of the air refrigeration cycle control method.
The present invention also provides a computer-readable storage medium storing computer instructions for causing a computer to execute the air refrigeration cycle control method described above, or the method described in any one of the alternative embodiments of the air refrigeration cycle control method described above.
The technical scheme of the invention has the following advantages:
1. according to the air refrigeration circulating device, the adjustable water spraying atomization device is arranged on the pipeline, and is suitable for spraying water mist to the interior of the pipeline, so that the humidity of the heat exchange medium in the pipeline is changed, the refrigerating capacity is improved, the energy efficiency of the air refrigeration circulating device is greatly improved, and the problem of low refrigerating performance of the air refrigeration circulating device is solved.
2. According to the air refrigeration cycle device provided by the invention, the adjustable water spraying and atomizing device is arranged between the first heat exchanger and the throttling device; and/or, adjustable water spray atomizing device set up in the second heat exchanger with between the compressor, through the mode is arranged adjustable water spray atomizing device, adjustable water spray atomizing device's quantity can increase and decrease as required, when solving the not high problem of air refrigeration cycle device refrigeration performance, can carry out dynamic adjustment to the increase of refrigerating output, has more the flexibility and the comprehensive nature of adjusting.
3. The air refrigeration cycle device provided by the invention is provided with the temperature and humidity sensor, is suitable for acquiring the temperature and the humidity of the heat exchange medium at the outlet end of the adjustable water spray atomization device, and detects the moisture content and the temperature in the heat exchange medium through the temperature and humidity sensor, so that the throttle device or the compressor is prevented from being damaged due to excessive water spray, the water spray quantity of the adjustable water spray atomization device is more suitable, and the refrigeration performance of the air refrigeration cycle device is higher.
4. According to the air refrigeration circulating device provided by the invention, the regulator is arranged, the regulator is matched with the temperature and humidity sensor, the temperature and humidity sensor transmits the moisture content and temperature information in the heat exchange medium to the regulator of the adjustable water spraying and atomizing device through the processor, the regulator controls the water spraying amount and regulates the water spraying amount, the reliability of the air refrigeration circulating device is ensured, the throttle device or the compressor is prevented from being damaged due to the fact that the water spraying amount is too large, and the refrigeration performance of the air refrigeration circulating device is improved by reasonably spraying water.
5. According to the air refrigeration cycle device provided by the invention, the heat exchange medium is air, and the air is used as a natural refrigeration working medium which is pure natural, safe, environment-friendly and available everywhere, has the advantages of rich source, easiness in obtaining, environmental friendliness and the like, and becomes one of the most potential alternative working media of the fluorine-chlorine hydrocarbon refrigerant.
6. According to the air refrigeration cycle control method and device, the state data of the heat exchange medium is obtained, wherein the state data comprises the temperature and the humidity of the heat exchange medium; judging whether the state data exceeds a preset value; and correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result. By comparing the state data with the preset value, the water spraying amount of the adjustable water spraying atomization device is correspondingly adjusted, so that the reliability of the air refrigeration cycle device is ensured, the throttling device or the compressor is prevented from being damaged due to the fact that the water spraying amount is too large, water spraying treatment is reasonably carried out, and the refrigeration performance of the air refrigeration cycle device is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic configuration diagram of an air refrigeration cycle apparatus according to an embodiment of the present invention;
fig. 2 is a first flowchart of the operation of the air refrigerating cycle apparatus according to the embodiment of the present invention;
fig. 3 is a schematic view showing a second operation flow of the air refrigerating cycle apparatus according to the embodiment of the present invention;
fig. 4 is a third schematic flow chart of the air refrigerating cycle apparatus according to the embodiment of the present invention;
FIG. 5 is a flow chart of an air refrigeration cycle control method of an embodiment of the present invention;
fig. 6 is a schematic structural view of an air refrigeration cycle control apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Description of reference numerals:
1-a compressor; 2-a first heat exchanger; 3-a throttling device; 4-a second heat exchanger;
5-a first adjustable water-spraying atomization device; 6-a second adjustable water-spraying atomization device;
7-a first temperature and humidity sensor; 8-a second temperature and humidity sensor; 9-pipeline;
101-an acquisition module; 102-a first processing module; 103-a second processing module;
901-a processor; 902-memory.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
An embodiment of the present invention provides an air refrigeration cycle apparatus, as shown in fig. 1, including:
a compressor 1 adapted to pressurize a heat exchange medium;
the throttling device 3 is suitable for throttling and decompressing the heat exchange medium;
the pipeline 9 is sequentially communicated with the compressor 1, the first heat exchanger 2, the throttling device 3 and the second heat exchanger 4;
the adjustable water spraying and atomizing device is arranged on the pipeline 9 and is suitable for spraying water mist inside the pipeline 9.
Preferably, the throttling device 3 is an expander, and is adapted to throttle and decompress a heat exchange medium, and the heat exchange medium with low temperature and high pressure performs adiabatic expansion in the expander to externally apply work to consume internal energy of the heat exchange medium itself, so that the temperature and pressure of the heat exchange medium are greatly reduced, and the heat exchange medium with low temperature and low pressure is output.
Preferably, the adjustable water-spraying atomization device is a steam generation device (such as an ultrasonic humidifier), the water is subjected to high-frequency vibration by using an ultrasonic oscillator, so that nanoscale water vapor is generated, and then atomized steam is sprayed into the air refrigeration cycle device through the regulator and the nozzle, so that the heat exchange medium changes from a saturated state to a supersaturated state, the humidity is increased, the refrigerating capacity is improved, the energy efficiency of the air refrigeration cycle device is greatly improved, and the problem of low refrigerating performance of the air refrigeration cycle device is solved. In practical applications, the adjustable water-spraying atomizing device may be an ultrasonic humidifier, but is not limited thereto, and the implementation form of the adjustable water-spraying atomizing device for changing the humidity in the air refrigeration cycle device is also within the protection scope of the air refrigeration cycle device provided by the embodiment of the present invention.
In practical application, the air refrigeration cycle device is also called as an inverse brayton cycle, and the air refrigeration cycle device with water spraying is added with a water spraying technology on the basis of the inverse brayton cycle. At a certain temperature, the concentration of water vapor in saturated wet air reaches the maximum value, vaporization and liquefaction are in a dynamic balance state, and how much water is vaporized and how much water vapor is liquefied simultaneously. The relative humidity represents the ratio of the partial pressure of water vapor in humid air to the partial pressure of water vapor in saturated humid air at the same total pressure at the same temperature, and it can be represented that air with a relative humidity of 100% is saturated air.
According to the air refrigeration cycle device provided by the embodiment of the invention, the adjustable water spray atomization device is arranged on the pipeline 9, and the humidity of the heat exchange medium in the pipeline 9 is changed by adjusting the water spray quantity, so that the normal operation of the air refrigeration cycle device is ensured, the refrigeration function is realized, the refrigeration quantity is improved, the energy efficiency of the air refrigeration cycle device is greatly improved, and the problem of low refrigeration performance of the air refrigeration cycle device is solved.
Specifically, the adjustable water spraying atomization device is arranged between the first heat exchanger 2 and the throttling device 3; and/or the adjustable water spraying atomization device is arranged between the second heat exchanger 4 and the compressor 1.
In practical application, the number and the arrangement position of the adjustable water spray atomization devices can be adjusted according to practical situations, and when one adjustable water spray atomization device is arranged, the adjustable water spray atomization device can be arranged between the first heat exchanger 2 and the throttling device 3 or between the second heat exchanger 4 and the compressor 1; when two adjustable water spray atomization devices are provided, the two adjustable water spray atomization devices can be arranged between the first heat exchanger 2 and the throttling device 3 and between the second heat exchanger 4 and the compressor 1, and the practical situation includes but is not limited to this, and the number and the arrangement positions of the adjustable water spray atomization devices are changed for improving the refrigeration performance of the air refrigeration cycle device, and the protection range of the air refrigeration cycle device provided by the embodiment of the invention is also included.
According to the air refrigeration cycle device provided by the embodiment of the invention, the adjustable water spraying atomization devices are arranged in the manner, the number of the adjustable water spraying atomization devices can be increased or decreased according to needs, the problem of low refrigeration performance of the air refrigeration cycle device is solved, the increase of the refrigeration capacity can be dynamically adjusted, and the air refrigeration cycle device has more flexibility and comprehensiveness in adjustment.
Specifically, the air refrigeration cycle device further includes:
and the temperature and humidity sensor is suitable for acquiring the temperature and the humidity of the heat exchange medium at the outlet end of the adjustable water spraying and atomizing device. In practical applications, the steam passing through the water-spraying atomizing device passes through the temperature and humidity sensor, the moisture content and temperature in the circulating air are detected by the humidity detector and the temperature detector, and these information are transmitted to the regulator of the adjustable water-spraying atomizing device through the processor 901, and the regulator controls the water-spraying amount. When the moisture content in the air is too high, properly reducing the water spraying amount or closing the adjustable water spraying atomization device; when the moisture content in the air is excessively low, the amount of water sprayed is appropriately increased.
Preferably, at least one temperature and humidity sensor is disposed at the outlet end of the adjustable water spray atomization device, and when the number of the adjustable water spray atomization devices is increased, the number of the temperature and humidity sensors is correspondingly increased to obtain the temperature and humidity of the heat exchange medium at the outlet end of the adjustable water spray atomization device, but the actual situation is not limited thereto, and the number and the arrangement position of the temperature and humidity sensors are changed to ensure the accuracy of the obtained temperature and humidity data of the heat exchange medium, which is also within the protection range of the air refrigeration cycle device provided by the embodiment of the present invention.
According to the air refrigeration cycle device provided by the embodiment of the invention, the moisture content and the temperature in the heat exchange medium are detected through the temperature and humidity sensor, so that not only can the throttling device 3 or the compressor 1 be prevented from being damaged due to excessive water spraying, but also the water spraying amount of the adjustable water spraying and atomizing device can be more appropriate, and the refrigeration performance of the air refrigeration cycle device is higher.
Specifically, the air refrigeration cycle device further includes:
and the regulator is suitable for regulating the water spraying quantity of the adjustable water spraying atomization device according to the feedback signal. By arranging the regulator, the regulator is matched with the temperature and humidity sensor, the temperature and humidity sensor transmits the moisture content and temperature information in the heat exchange medium to the regulator of the adjustable water spraying and atomizing device through the processor 901, and the regulator controls the water spraying amount. When the moisture content in the air is too high, properly reducing the water spraying amount or closing the adjustable water spraying atomization device; when the moisture content in the air is excessively low, the amount of water sprayed is appropriately increased. By adjusting the water spraying amount, the reliability of the air refrigeration cycle device can be ensured, the throttle device 3 or the compressor 1 is prevented from being damaged due to overlarge water spraying amount, and the refrigeration performance of the air refrigeration cycle device is improved by reasonably spraying water.
Specifically, the heat exchange medium is air.
According to the air refrigeration cycle device provided by the embodiment of the invention, the heat exchange medium is air, and the air is used as a natural refrigeration working medium which is pure natural, safe, environment-friendly and available everywhere, has the advantages of rich source, easiness in obtaining, environmental friendliness and the like, and becomes one of the most potential alternative working media of the fluorine-chlorine hydrocarbon refrigerant.
The air refrigeration cycle device provided by the embodiment of the invention will be described in detail with reference to specific application examples.
As shown in fig. 1-2, the heat exchange medium flows from the second heat exchanger 4, the heat exchange medium at this time is a low-pressure saturated air flow a, and becomes a low-temperature low-pressure supersaturated air flow B after flowing through the second adjustable water spray atomization device 6, and after being compressed by the compressor 1, a high-temperature high-pressure dry saturated air flow C discharged from the compressor 1 is cooled by the first heat exchanger 2 into a medium-temperature high-pressure air flow D, and becomes a supersaturated low-temperature high-pressure air flow E after passing through the first adjustable water spray atomization device 5, and becomes a low-temperature low-pressure dry saturated air flow F after being expanded by the throttling device 3, and the low-temperature low-pressure dry saturated air flow F flows through the second heat exchanger 4 to provide cool air, so as to perform the refrigeration cycle.
As shown in fig. 1 to 4, when the number of the adjustable water atomization device is 1, the adjustable water atomization device can be arranged between the first heat exchanger 2 and the throttling device 3 or between the second heat exchanger 4 and the compressor 1. When the adjustable water spraying atomization device is arranged between the first heat exchanger 2 and the throttling device 3, the adjustable water spraying atomization device at the moment is a first adjustable water spraying atomization device 5. The heat exchange medium becomes supersaturated low-temperature high-pressure airflow E after passing through the first adjustable water spray atomization device 5, and becomes low-temperature low-pressure dry saturated airflow F after being expanded by the throttling device 3, the heat exchange medium flows through the second heat exchanger 4 to provide cold air for cooling, and the heat exchange medium becomes normal-temperature low-pressure airflow A at the moment, and is compressed by the compressor 1 again, and then the high-temperature high-pressure dry saturated airflow C discharged from the compressor 1 is cooled by the first heat exchanger 2 to become medium-temperature high-pressure airflow D, and becomes supersaturated low-temperature high-pressure airflow E after passing through the first adjustable water spray atomization device 5 again, so that the refrigerating cycle is performed in the process. When the adjustable water spraying atomization device is arranged between the second heat exchanger 4 and the compressor 1, the adjustable water spraying atomization device at the moment is a second adjustable water spraying atomization device 6. The refrigeration cycle process is similar to the refrigeration cycle process when the adjustable water-spraying atomization device is the first adjustable water-spraying atomization device 5, and the detailed description is omitted.
The embodiment of the invention provides an air refrigeration cycle control method, wherein the air refrigeration cycle device comprises a compressor 1, a throttling device 3, a pipeline 9 and an adjustable water spraying and atomizing device, wherein the compressor 1 is suitable for pressurizing a heat exchange medium; the throttling device 3 is suitable for throttling and decompressing the heat exchange medium; the pipeline 9 is sequentially communicated with the compressor 1, the first heat exchanger 2, the throttling device 3 and the second heat exchanger 4; the adjustable water spraying and atomizing device is arranged on the pipeline 9, the adjustable water spraying and atomizing device is suitable for spraying water mist inside the pipeline 9, and as shown in fig. 5, the air refrigeration cycle control method specifically comprises the following steps:
step S101: acquiring state data of a heat exchange medium, wherein the state data comprises the temperature and the humidity of the heat exchange medium. In practical application, the acquisition position of the state data is the outlet end of the adjustable water spraying and atomizing device, so that the heat exchange medium is ensured to reach a supersaturated state.
Step S102: and judging whether the state data exceeds a preset value. In practical application, the higher the moisture content in the heat exchange medium is, the better the moisture content is, by setting a preset value, the reliability of the air refrigeration cycle device can be ensured, the throttle device 3 or the compressor 1 is prevented from being damaged due to excessive water spraying, and the refrigeration performance of the air refrigeration cycle device can be higher.
Step S103: and correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result. In practical application, according to the state data and the judgment result, when the moisture content in the heat exchange medium is too high, the water spraying amount is properly reduced or the adjustable water spraying atomization device is closed; when the moisture content in the heat exchange medium is excessively low, the amount of water spray is appropriately increased. By adjusting the water spraying amount, the reliability of the air refrigeration cycle device can be ensured, the throttle device 3 or the compressor 1 is prevented from being damaged due to overlarge water spraying amount, and the refrigeration performance of the air refrigeration cycle device is improved by reasonably spraying water.
By executing the steps, the air refrigeration cycle control method provided by the embodiment of the invention obtains the state data of the heat exchange medium, wherein the state data comprises the temperature and the humidity of the heat exchange medium; judging whether the state data exceeds a preset value; and correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result. By comparing the state data with the preset value, the water spraying amount of the adjustable water spraying atomization device is correspondingly adjusted, so that the reliability of the air refrigeration cycle device is ensured, the throttle device 3 or the compressor 1 is prevented from being damaged due to the fact that the water spraying amount is too large, water spraying treatment is reasonably carried out, and the refrigeration performance of the air refrigeration cycle device is improved.
Specifically, in one embodiment, the adjustable water spray atomization device is arranged between the first heat exchanger 2 and the throttling device 3; or, the adjustable water spraying atomization device is arranged between the second heat exchanger 4 and the compressor 1, and the step S103 specifically includes the following steps:
step S201: when the state data exceed a preset state value, acquiring a first set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the first set.
In practical applications, the preset state value is the maximum humidity value of the heat exchange medium at the outlet end of the adjustable water spray atomizing device, which is set to ensure the normal operation of the air refrigeration cycle device, but the actual situation is not limited to this, and the value change of the preset state value to improve the refrigeration performance of the air refrigeration cycle device is also within the protection range of the air refrigeration cycle control method provided by the embodiment of the present invention.
In practical application, when the state data exceeds a preset state value, the adjustable water spraying and atomizing device corresponding to the state data is closed, and at the moment, the water spraying amount of the adjustable water spraying and atomizing device is 0.
Step S202: and when the state data do not exceed a preset state value, acquiring a second set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the second set, wherein the second set comprises the corresponding relation between the state data of the M sections and the water spraying quantity of the adjustable water spraying atomization device.
In practical application, when the state data does not exceed a preset state value, the state data needs to be judged again, and the value of M can be selected according to practical conditions, in the embodiment of the invention, the value of M is 2, namely when the humidity data is lower than a value capable of ensuring the normal work of the air refrigeration cycle device, the water spraying amount is increased on the basis of the original water spraying amount; when the humidity data is between the normal working value and the preset state value, the amount of water spray is appropriately reduced on the basis of the original amount of water spray to prevent the occurrence of the excessive amount of water spray, but the actual situation is not limited to this, and the change of the number of sets or intervals for improving the refrigeration performance of the air refrigeration cycle device is also within the protection scope of the air refrigeration cycle control method provided by the embodiment of the invention.
Specifically, in an embodiment, the adjustable water spray atomizing device comprises a first adjustable water spray atomizing device 5 and a second adjustable water spray atomizing device 6, wherein the first adjustable water spray atomizing device 5 is disposed between the first heat exchanger 2 and the throttling device 3; and, the second adjustable water spraying atomization apparatus 6 is disposed between the second heat exchanger 4 and the compressor 1, and the step S103 correspondingly adjusts the water spraying amount of the adjustable water spraying atomization apparatus based on the state data and the determination result further includes the following steps:
step S301: and when the state data exceed a preset state value, acquiring a third set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the third set.
In practical application, when the state data exceeds a preset state value, the adjustable water spraying and atomizing device corresponding to the state data is closed, and at the moment, the water spraying amount of the adjustable water spraying and atomizing device is 0.
Step S302: and when the state data does not exceed a preset state value, acquiring a fourth set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the fourth set, wherein the fourth set comprises the corresponding relation between the state data of the N intervals and the water spraying quantity of the adjustable water spraying atomization device.
In practical application, when the state data does not exceed a preset state value, the state data needs to be judged again, and the value of N can be selected according to practical conditions, in the embodiment of the invention, the value of N is 2, namely when the humidity data is lower than a value capable of ensuring the normal work of the air refrigeration cycle device, the water spraying amount is increased on the basis of the original water spraying amount; when the humidity data is between the normal working value and the preset state value, the amount of water spray is appropriately reduced on the basis of the original amount of water spray to prevent the occurrence of the excessive amount of water spray, but the actual situation is not limited to this, and the change of the number of sets or intervals for improving the refrigeration performance of the air refrigeration cycle device is also within the protection scope of the air refrigeration cycle control method provided by the embodiment of the invention.
Preferably, in one embodiment, the adjustable water-spraying atomization devices are a first adjustable water-spraying atomization device 5 and a second adjustable water-spraying atomization device 6. The state data of the first adjustable water spraying and atomizing device 5 is acquired through the first temperature and humidity sensor 7, and the state data of the second adjustable water spraying and atomizing device 6 is acquired through the second temperature and humidity sensor 8. In the embodiment of the invention, the state data acquired by a first temperature and humidity sensor 7 is recorded as first state data, the state data acquired by a second temperature and humidity sensor 8 is recorded as second state data, the first state data and the second state data are respectively compared with the preset state value to obtain a judgment result, and the water spraying amount of the first adjustable water spraying and atomizing device 5 is determined based on the first state data and the judgment result; and determining the water spraying quantity of the second adjustable water spraying atomization device 6 based on the second state data and the judgment result.
The air refrigeration cycle control method provided by the embodiment of the invention will be described in detail with reference to specific application examples.
As shown in fig. 1 to 5, the heat exchange medium flows from the second heat exchanger 4, the heat exchange medium at this time is a low-pressure saturated air flow a, and becomes a low-temperature low-pressure supersaturated air flow B after flowing through the second adjustable water spray atomization device 6, and after being compressed by the compressor 1, a high-temperature high-pressure dry saturated air flow C discharged from the compressor 1 is cooled by the first heat exchanger 2 into a medium-temperature high-pressure air flow D, and becomes a supersaturated low-temperature high-pressure air flow E after passing through the first adjustable water spray atomization device 5, and becomes a low-temperature low-pressure dry saturated air flow F after being expanded by the throttling device 3, and the low-temperature low-pressure dry saturated air flow F flows through the second heat exchanger 4 to provide cool air, thereby performing the refrigeration cycle.
The water spraying and atomizing process is an isenthalpic process, and according to the thermodynamic theory, the water spraying and atomizing process comprises
(1) Relative humidity of air
Air moisture content d:
in the formula (I), the compound is shown in the specification,
is the relative humidity of the air;
d is the air moisture content, g/kg;
pvis the water vapor partial pressure in the air, Pa;
psthe partial pressure of water vapor in saturated wet air at the same temperature is Pa;
p is atmospheric pressure, Pa.
(2) The humid air enthalpy value h consists of the dry air enthalpy and the water vapor enthalpy:
the humid air entropy value s consists of the dry air entropy and the water vapor entropy:
wherein t is the temperature of the gas stream, K;
gamma is the latent heat of vaporization of water vapor at 0 ℃, J/kg;
s is the entropy of the humid air, KJ/(kg. K);
sgthe entropy of dry air at a certain temperature is KJ/(kg. K);
Rgis the dry air gas constant;
Pgis the partial pressure of dry air, Pa;
svKJ/(kg. K) is the entropy of water vapor.
(3) Spray atomization is an isenthalpic process, i.e. the enthalpy value h of the supersaturated air flow at point BBThe enthalpy value h of the airflow at the point AAAnd the sum of the enthalpy value of the sprayed water:
in the formula, hBIs the enthalpy value of the supersaturated air flow at the point B in the figure 1, KJ/kg;
hAis the enthalpy value of the supersaturated airflow at the point A in the figure 1, KJ/kg;
hWKJ/kg is the enthalpy value of the sprayed water;
dWg/kg for the water content sprayed.
(4) The gas compression process is isentropic compression, and the outlet pressure, the outlet temperature and the compression power consumption of the compressor 1 are as follows:
PC＝π·PB
ωc＝CP(TC-TB)
in the formula, PCIs the outlet pressure, Pa, of the compressor 1;
PBis the inlet pressure, Pa, of the compressor 1;
pi is the cycle pressure ratio;
TCis the outlet temperature, K, of the compressor 1;
k is an isentropic index;
CpKJ/(kg. DEG C) is the specific heat capacity at constant pressure;
ωcthe unit work consumed for compression is kW/kg.
(5) The gas expansion process is isentropic expansion, and the outlet temperature and the expansion work of the throttling device 3 are as follows:
ωe＝CP(TF-TE)
in the formula, ωekW/kg for the expansion work.
System cooling capacity and coefficient of performance:
in the formula, q is refrigerating capacity, kW;
hAis the enthalpy of the air flow at point A in figure 1, J/kg;
hFis the enthalpy of the air flow at point F in figure 1, J/kg;
dDair moisture content, g/kg, point D in FIG. 1;
dDwthe moisture content of the sprayed water is g/kg;
dApoint a in fig. 1, air moisture content, g/kg;
COP is the coefficient of performance.
In the embodiment of the present invention, when pi is 2.2, the COP is maximum (more than 2 times of that of the ordinary air refrigeration cycle), but the actual situation is not limited to this, and the above parameters may be set according to the actual situation, and the parameter setting is changed to ensure that the COP is maximum, which is also within the protection range of the air refrigeration cycle control method provided in the embodiment of the present invention.
An embodiment of the present invention provides an air refrigeration cycle control apparatus, as shown in fig. 6, including:
the acquiring module 101 is configured to acquire state data of a heat exchange medium, where the state data includes a temperature and a humidity of the heat exchange medium. For details, refer to the related description of step S101 in the above method embodiment, and no further description is provided here.
The first processing module 102 is configured to determine whether the state data exceeds a preset value. For details, refer to the related description of step S102 in the above method embodiment, and no further description is provided here.
And the second processing module 103 is configured to correspondingly adjust the water spraying amount of the adjustable water spraying and atomizing device based on the state data and the determination result. For details, refer to the related description of step S103 in the above method embodiment, and no further description is provided here.
Further description of the air refrigeration cycle control apparatus is provided in the related description of the embodiments of the air refrigeration cycle control method, and will not be repeated herein.
Through the cooperative cooperation of the above components, the air refrigeration cycle control device provided by the embodiment of the invention correspondingly adjusts the water spraying amount of the adjustable water spraying atomization device by comparing the state data with the preset value, thereby not only ensuring the reliability of the air refrigeration cycle device and avoiding the damage of the throttling device 3 or the compressor 1 caused by overlarge water spraying amount, but also improving the refrigeration performance of the air refrigeration cycle device through reasonable water spraying treatment.
An embodiment of the present invention provides an electronic device, as shown in fig. 7, the electronic device includes a processor 901 and a memory 902, where the memory 902 and the processor 901 are communicatively connected to each other, where the processor 901 and the memory 902 may be connected by a bus or in another manner, and fig. 7 takes the example of connection by a bus as an example.
The memory 902, which is a non-transitory computer readable storage medium, may be used for storing non-transitory software programs, non-transitory computer executable programs, and modules, such as program instructions/modules corresponding to the methods of the embodiments of the present invention. The processor 901 executes various functional applications and data processing of the processor 901 by executing non-transitory software programs, instructions and modules stored in the memory 902, that is, implements the methods in the above-described method embodiments.
The memory 902 may include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required for at least one function; the storage data area may store data created by the processor 901, and the like. Further, the memory 902 may include high speed random access memory, and may also include non-transitory memory, such as at least one magnetic disk storage device, flash memory device, or other non-transitory solid state storage device. In some embodiments, the memory 902 may optionally include memory located remotely from the processor 901, which may be connected to the processor 901 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
One or more modules are stored in the memory 902, which when executed by the processor 901 performs the methods in the above-described method embodiments.
The specific details of the electronic device may be understood by referring to the corresponding related descriptions and effects in the above method embodiments, and are not described herein again.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by a computer program, and the implemented program can be stored in a computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. The storage medium may be a magnetic Disk, an optical Disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a Flash Memory (Flash Memory), a Hard Disk (Hard Disk Drive, abbreviated as HDD) or a Solid State Drive (SSD), etc.; the storage medium may also comprise a combination of memories of the kind described above.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (11)
1. An air refrigerating cycle apparatus adapted to circulate a heat exchange medium therein, comprising:
a compressor (1) adapted to pressurise a heat exchange medium;
the throttling device (3) is suitable for throttling and decompressing the heat exchange medium;
the pipeline (9) is sequentially communicated with the compressor (1), the first heat exchanger (2), the throttling device (3) and the second heat exchanger (4);
the adjustable water spraying and atomizing device is arranged on the pipeline (9) and is suitable for spraying water mist inside the pipeline (9).
2. An air refrigeration cycle device according to claim 1, characterized in that the adjustable water spray atomizing device is arranged between the first heat exchanger (2) and the throttling device (3);
and/or the adjustable water spraying and atomizing device is arranged between the second heat exchanger (4) and the compressor (1).
3. The air refrigeration cycle apparatus according to claim 1, further comprising:
and the temperature and humidity sensor is suitable for acquiring the temperature and the humidity of the heat exchange medium at the outlet end of the adjustable water spraying and atomizing device.
4. The air refrigeration cycle apparatus according to claim 1, further comprising:
and the regulator is suitable for regulating the water spraying quantity of the adjustable water spraying atomization device according to the feedback signal.
5. The air refrigeration cycle apparatus according to claim 1, wherein the heat exchange medium is air.
6. The air refrigeration cycle control method is characterized in that the air refrigeration cycle device comprises a compressor (1), a throttling device (3), a pipeline (9) and an adjustable water spraying and atomizing device, wherein the compressor (1) is suitable for pressurizing a heat exchange medium; the throttling device (3) is suitable for throttling and decompressing the heat exchange medium; the pipeline (9) is sequentially communicated with the compressor (1), the first heat exchanger (2), the throttling device (3) and the second heat exchanger (4); the adjustable water spraying and atomizing device is arranged on the pipeline (9), the adjustable water spraying and atomizing device is suitable for spraying water mist inside the pipeline (9), and the air refrigeration cycle control method comprises the following steps:
acquiring state data of a heat exchange medium, wherein the state data comprises the temperature and the humidity of the heat exchange medium;
judging whether the state data exceeds a preset value;
and correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result.
7. The air refrigeration cycle control method according to claim 6, characterized in that:
the adjustable water spraying atomization device is arranged between the first heat exchanger (2) and the throttling device (3); or the adjustable water spraying and atomizing device is arranged between the second heat exchanger (4) and the compressor (1);
the correspondingly adjusting the water spraying amount of the adjustable water spraying atomization device based on the state data and the judgment result comprises:
when the state data exceed a preset state value, acquiring a first set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the first set;
and when the state data do not exceed a preset state value, acquiring a second set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the second set, wherein the second set comprises the corresponding relation between the state data of the M sections and the water spraying quantity of the adjustable water spraying atomization device.
8. The method of claim 6, wherein:
the adjustable water spraying and atomizing device comprises a first adjustable water spraying and atomizing device (5) and a second adjustable water spraying and atomizing device (6), wherein the first adjustable water spraying and atomizing device (5) is arranged between the first heat exchanger (2) and the throttling device (3); and the second adjustable water spray atomization device (6) is arranged between the second heat exchanger (4) and the compressor (1);
the correspondingly adjusting the water spraying amount of the adjustable water spraying atomization device based on the state data and the judgment result comprises:
when the state data exceed a preset state value, acquiring a third set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the third set;
and when the state data does not exceed a preset state value, acquiring a fourth set, and determining the water spraying quantity of the adjustable water spraying atomization device corresponding to the state data in the fourth set, wherein the fourth set comprises the corresponding relation between the state data of the N intervals and the water spraying quantity of the adjustable water spraying atomization device.
9. An air refrigeration cycle control device characterized by comprising:
the device comprises an acquisition module (101) for acquiring state data of a heat exchange medium, wherein the state data comprises the temperature and the humidity of the heat exchange medium;
the first processing module (102) is used for judging whether the state data exceed a preset value or not;
and the second processing module (103) is used for correspondingly adjusting the water spraying quantity of the adjustable water spraying atomization device based on the state data and the judgment result.
10. An electronic device, comprising:
a memory (902) and a processor (901), the memory (902) and the processor (901) being communicatively connected to each other, the memory (902) having stored therein computer instructions, the processor (901) executing the computer instructions to perform the air refrigeration cycle control method according to any one of claims 6-8.
11. A computer-readable storage medium storing computer instructions for causing a computer to thereby execute the air refrigeration cycle control method according to any one of claims 6 to 8.
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| JP2007107736A (en) * | 2005-10-11 | 2007-04-26 | Mitsubishi Heavy Ind Ltd | Refrigeration unit |
| CN110715479A (en) * | 2019-11-28 | 2020-01-21 | 广东美的制冷设备有限公司 | Compressed air heat exchange system |
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| US6301922B1 (en) * | 1997-09-29 | 2001-10-16 | Sharp Kabushiki Kaisha | Air cycling type air-conditioner |
| JP2000046425A (en) * | 1998-07-31 | 2000-02-18 | Mayekawa Mfg Co Ltd | Cooling apparatus |
| JP2000283579A (en) * | 1999-03-31 | 2000-10-13 | Daikin Ind Ltd | Air conditioner |
| JP2004168187A (en) * | 2002-11-20 | 2004-06-17 | Daikin Ind Ltd | Air conditioning device for automobile |
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