CN112880126A - Method and device for detecting refrigerant quantity of refrigerating system and air conditioner - Google Patents
Method and device for detecting refrigerant quantity of refrigerating system and air conditioner Download PDFInfo
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- CN112880126A CN112880126A CN202110105521.3A CN202110105521A CN112880126A CN 112880126 A CN112880126 A CN 112880126A CN 202110105521 A CN202110105521 A CN 202110105521A CN 112880126 A CN112880126 A CN 112880126A
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- 239000003507 refrigerant Substances 0.000 title claims abstract description 207
- 238000000034 method Methods 0.000 title claims abstract description 54
- 238000005057 refrigeration Methods 0.000 claims abstract description 141
- 238000001514 detection method Methods 0.000 claims abstract description 13
- 238000012423 maintenance Methods 0.000 abstract description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000004891 communication Methods 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 238000004590 computer program Methods 0.000 description 4
- 238000004378 air conditioning Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/32—Responding to malfunctions or emergencies
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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
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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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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
- F25B45/00—Arrangements for charging or discharging refrigerant
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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
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
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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
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/003—Control issues for charging or collecting refrigerant to or from a cycle
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
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- Signal Processing (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The application relates to the technical field of intelligent household appliances and discloses a method for detecting the refrigerant quantity of a refrigerating system. The method is applied to refrigeration equipment, the refrigeration equipment is provided with a pressure sensor, and when the addition of a refrigerant of a refrigeration system is stopped, a compressor of the refrigeration equipment is controlled to operate at a preset frequency; after the compressor runs for a preset time, acquiring a first pressure value acquired by a pressure sensor; and determining the refrigerant quantity corresponding to the first pressure value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant. With this scheme, can add the refrigerant after the maintenance personal, according to the pressure value of refrigerating system's collection, confirm the refrigerant volume among the refrigerating system, provide a more accurate refrigerant volume detection mode for the user to the user confirms the remaining refrigerant volume information of refrigerating system, whether suitable with this refrigerant volume of judging the maintenance personal and adding, satisfy user's demand. The application also discloses a device and an air conditioner for detecting the refrigerant quantity of the refrigerating system.
Description
Technical Field
The present disclosure relates to the field of intelligent home appliances, and more particularly, to a method and an apparatus for detecting the amount of refrigerant in a refrigeration system, and an air conditioner.
Background
The refrigerant is a working fluid used for transferring heat energy in an air-conditioning refrigeration system to generate a refrigeration effect. In the development process of the air conditioning system, the refrigerant quantity plays an important role in whether the system can exert the maximum energy efficiency. In the use process of the air conditioner, along with the volatilization of the refrigerant, the amount of the refrigerant in the pipeline is gradually reduced. If the amount of refrigerant in the pipeline is insufficient, the stable operation of the refrigeration system cannot be maintained, and maintenance personnel need to be contacted to add the refrigerant. In the prior art, a maintenance person usually determines the addition amount of the refrigerant by a pressure gauge or a system parameter obtaining manner to fill the refrigerant into the system. However, this method cannot accurately determine the amount of the refrigerant remaining in the refrigerant-added pipe of the refrigeration system. Therefore, how to accurately determine the residual refrigerant flow in the refrigerant adding pipeline of the refrigeration system becomes an urgent problem to be solved.
Disclosure of Invention
The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.
The embodiment of the disclosure provides a method and a device for detecting the refrigerant quantity of a refrigerating system and an air conditioner, and provides a method for more accurately detecting the refrigerant quantity of the refrigerating system.
In some embodiments, the method comprises: the method is applied to refrigeration equipment, the refrigeration equipment is provided with a pressure sensor, and when the addition of a refrigerant of a refrigeration system is stopped, a compressor of the refrigeration equipment is controlled to operate at a preset frequency; after the compressor runs for a preset time, acquiring a first pressure value acquired by a pressure sensor; and determining the refrigerant quantity corresponding to the first pressure value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant.
In some embodiments, the method comprises: acquiring an outdoor environment temperature and an indoor environment temperature, determining a difference value between the outdoor environment temperature and the indoor environment temperature, and acquiring a second pressure value acquired by a pressure sensor when the difference value between the outdoor environment temperature and the indoor environment temperature is consistent with a preset difference value; determining the refrigerant quantity corresponding to the first pressure value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant; determining a pressure average value of the first pressure value and the second pressure value; and determining the refrigerant quantity corresponding to the pressure average value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant.
In some embodiments, the method comprises: acquiring the refrigerant storage capacity of a refrigerant system, and determining the ratio of the current residual refrigerant amount to the refrigerant storage capacity; and determining the refrigerant grade in the refrigeration system represented by the ratio according to the ratio of the current residual refrigerant amount to the refrigerant storage capacity.
In some embodiments, when the ratio is not higher than the preset ratio, a prompt message indicating the refrigerant level is pushed to the user.
In some embodiments, after controlling the compressor of the refrigeration appliance to operate at the preset frequency, the method further comprises: and adjusting the opening degree of an air deflector of the refrigeration equipment to a first preset opening degree.
In some embodiments, after controlling the compressor of the refrigeration appliance to operate at the preset frequency, the method further comprises: and adjusting the opening degree of a throttle valve of the refrigeration equipment to a second preset opening degree.
In some embodiments, after controlling the compressor of the refrigeration appliance to operate at the preset frequency, the method further comprises: and adjusting the rotating speed of a fan of the refrigeration equipment to a preset rotating speed.
In some embodiments, the apparatus comprises: the control module is used for controlling the compressor of the refrigeration equipment to operate at a preset frequency when the refrigerant of the refrigeration system stops adding; the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is configured to acquire a first pressure value acquired by a pressure sensor after the refrigeration equipment runs for a preset time; the determining module is configured to determine a current residual refrigerant quantity corresponding to the first pressure value according to the corresponding relation between the pressure values and the refrigerant.
In some embodiments, the air conditioner includes: a processor and a memory storing program instructions, the processor being configured to perform the aforementioned method for refrigerant quantity detection for a refrigeration system upon execution of the program instructions.
The method and the device for detecting the amount of the refrigerant for the refrigerating system and the air conditioner provided by the embodiment of the disclosure can realize the following technical effects: the method includes the steps of determining that the refrigerant addition of the refrigeration system is completed when the refrigerant addition of the refrigeration system is stopped. And after the addition of the refrigerant is finished, controlling a compressor of the refrigeration equipment to operate at a preset frequency, collecting a first pressure value of the refrigeration system through a pressure sensor after the refrigeration equipment operates for a preset time length by arranging the pressure sensor on the refrigeration equipment, and determining the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the target refrigerant quantity. With this scheme, can add the refrigerant after the maintenance personal, according to the pressure value of refrigerating system's collection, confirm the refrigerant volume among the refrigerating system, provide a more accurate refrigerant volume detection mode for the user to the user confirms the remaining refrigerant volume information of refrigerating system, whether suitable with this refrigerant volume of judging the maintenance personal and adding, satisfy user's demand.
The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.
Drawings
One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:
fig. 1 is a schematic diagram illustrating a method for detecting refrigerant quantity of a refrigeration system according to an embodiment of the disclosure;
fig. 2 is a refrigerant grade comparison table according to the embodiment of the disclosure;
fig. 3 is a refrigerant state table according to an embodiment of the disclosure;
fig. 4 is a schematic diagram of a device for refrigerant quantity detection of a refrigeration system according to an embodiment of the disclosure;
fig. 5 is a schematic diagram of an air conditioning module according to an embodiment of the present disclosure.
Detailed Description
So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.
The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.
The term "plurality" means two or more unless otherwise specified.
In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.
The term "and/or" is an associative relationship that describes objects, meaning that three relationships may exist. For example, a and/or B, represents: a or B, or A and B.
In practical application, the refrigeration equipment can be an intelligent air conditioner, and the pressure sensor is arranged on a return air pipe of the air conditioner, so that when the refrigerant of the refrigeration system stops adding, the compressor of the air conditioner is controlled to operate at a preset frequency, and after the compressor operates for a preset time, the refrigeration system of the air conditioner is in a stable state, so that a first pressure value acquired by the pressure sensor is obtained, and the refrigerant quantity is determined to be the current residual refrigerant quantity according to the refrigerant quantity corresponding to the first pressure value. And determining the refrigerant grade according to the current residual refrigerant quantity. Further, refrigerant volume and refrigerant grade are pushed to the user, a more accurate refrigerant volume detection mode is provided for the user, so that the user can determine the residual refrigerant volume information of the refrigeration system, whether the refrigerant volume added by maintenance personnel is appropriate or not is judged, and the user demand is met.
Fig. 1 is a schematic diagram of a method for detecting a refrigerant quantity of a refrigeration system according to an embodiment of the present disclosure, and with reference to fig. 1, the embodiment of the present disclosure provides a method for detecting a refrigerant quantity of a refrigeration system, which is applied to a refrigeration apparatus, where the refrigeration apparatus is configured with a pressure sensor, and includes:
and S11, controlling the compressor of the refrigeration equipment to operate at a preset frequency when the refrigerant of the refrigeration system stops adding.
And S12, acquiring a first pressure value collected by the pressure sensor after the compressor runs for a preset time.
And S13, determining the refrigerant quantity corresponding to the first pressure value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure values and the refrigerant.
The method for detecting the refrigerant quantity of the refrigeration system is applied to refrigeration equipment, and the refrigeration equipment can be equipment with a refrigeration function, intelligent household equipment and the like, or any combination thereof. In some embodiments, the smart home devices may include, for example, air conditioners, refrigerators, and the like, or any combination thereof.
In step 11, the compressor of the refrigeration apparatus may be controlled to operate at a preset frequency when the addition of the refrigerant of the refrigeration system is stopped.
In this aspect, a sensor may be provided on a pipeline of the refrigeration system. In one example, since the return air tube is thicker relative to other tubes in the refrigeration system, a pressure sensor may be added to the return air tube to better utilize the space at the return air tube of the refrigeration system. In addition, the pressure sensor is additionally arranged at the position, so that the pipeline pressure when the refrigerating system is stable can be better reflected, and the correspondence between the pipeline pressure and the refrigerant quantity is further realized.
In the scheme, a refrigerant quantity self-checking key can be installed on the remote control device matched with the refrigeration equipment, and when a user receives key value information received by the refrigeration equipment, whether the refrigerant of the refrigeration system stops adding or not is determined. And voice information of a user can be acquired, and whether the refrigerant of the refrigeration system stops adding or not is determined through the voice information of the user. For example, if the voice information of the user is acquired to indicate that the refrigerant addition is finished, it is determined that the refrigerant addition of the refrigeration system is stopped. In an optimized scheme, information of refrigerant addition end can be manually input to a client associated with the refrigeration equipment by a user, and when the client receives the information, the refrigerant addition end of the refrigeration system is determined. Therefore, after the refrigeration equipment determines that the addition of the refrigerant of the refrigeration system is finished, the compressor of the refrigeration equipment is controlled to operate at the preset frequency. At this time, the preset frequency may be the lowest frequency capable of maintaining the stable operation of the system, or may be set in advance according to the user's requirement. By the scheme, stable and energy-saving system operation conditions can be provided for the pressure detection process, the accuracy of the acquired data is further improved, and a stable operation environment basis is provided for the acquisition of the pressure data.
In step 12, after the compressor runs for a preset time, a first pressure value collected by the pressure sensor is obtained.
In this scheme, can set up pressure sensor on the pipeline of refrigeration plant's muffler to after long when compressor operation is predetermine, refrigeration plant is in steady operation state, acquires the first pressure value that pressure sensor gathered. In an optimized scheme, a plurality of pressure sensors can be arranged on a refrigerating system pipeline of the refrigerating equipment, and the plurality of pressure sensors are respectively arranged on different pipelines of the refrigerating system, such as a pipeline on the refrigerant inflow side of the evaporator, a pipeline on the refrigerant outflow side of the evaporator, a pipeline on the refrigerant inflow side of the condenser, a pipeline on the refrigerant outflow side of the compressor and a pipeline on the refrigerant inflow side of the compressor. Therefore, the current residual refrigerant quantity of the refrigeration system is further determined according to the pressure values obtained by the pressure sensors, and specifically, the refrigerant quantity corresponding to the average value can be determined as the current residual refrigerant quantity according to the average value of the pressures obtained by the pressure sensors. According to the scheme, the pressure value can be acquired through the pressure sensors, and the current residual refrigerant quantity in the pipeline is determined according to the pressure average value, so that whether the refrigerant quantity added by maintenance personnel is appropriate or not is judged, and the requirements of users are met.
In step 13, the refrigerant quantity corresponding to the first pressure value may be determined as the current remaining refrigerant quantity of the refrigeration system according to the corresponding relationship between the pressure value and the refrigerant quantity.
In the scheme, different pressure values correspond to different refrigerant quantities, a corresponding relation table of the pressure values and the refrigerant quantities can be prestored in advance, and the residual refrigerant quantities corresponding to the different pressure values are prestored in the table. According to the technical scheme provided by the embodiment of the disclosure, when the refrigerant of the refrigeration system stops adding, the refrigerant of the refrigeration system is determined to be added completely. And after the addition of the refrigerant is finished, controlling a compressor of the refrigeration equipment to operate at a preset frequency, collecting a first pressure value of the refrigeration system through a pressure sensor after the refrigeration equipment operates for a preset time length by arranging the pressure sensor on the refrigeration equipment, and determining the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the target refrigerant quantity. With this scheme, can add the refrigerant after the maintenance personal, according to the pressure value of refrigerating system's collection, confirm the refrigerant volume among the refrigerating system, provide a more accurate refrigerant volume detection mode for the user to the user confirms the remaining refrigerant volume information of refrigerating system, whether suitable with this refrigerant volume of judging the maintenance personal and adding, satisfy user's demand.
Optionally, after the compressor runs for a preset time, acquiring an outdoor environment temperature and an indoor environment temperature, determining a difference value between the outdoor environment temperature and the indoor environment temperature, and acquiring a second pressure value acquired by the pressure sensor when the difference value between the outdoor environment temperature and the indoor environment temperature is consistent with the preset difference value; determining a pressure average value of the first pressure value and the second pressure value; and determining the refrigerant quantity corresponding to the pressure average value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant.
In the scheme, the preset difference value can be determined according to the mode of the refrigeration equipment. For example, when the cooling device is an air conditioner and the air conditioner is in a cooling state, the preset temperature difference may be set to 6 degrees. Meanwhile, the preset temperature difference value can be set in advance according to the use requirement of a user. In the technical scheme provided by the embodiment of the disclosure, an ambient temperature acquisition device can be arranged. Specifically, the ambient temperature difference between the outdoor temperature and the indoor temperature can be determined by collecting the specific parameter values of the outdoor ambient temperature and the indoor ambient temperature. And when the difference value is consistent with the preset difference value, acquiring a second temperature acquired by the pressure sensor. The coincidence is that the difference between the outdoor temperature and the indoor temperature is equal, or the fluctuation value is set, and if the difference between the outdoor ambient temperature and the indoor ambient temperature can fluctuate up and down at the preset difference, the difference between the outdoor ambient temperature and the indoor ambient temperature can be determined to be coincident with the preset difference. For example, if the outdoor ambient temperature is 28 degrees and the indoor ambient temperature is 23 degrees, the difference between the ambient temperatures at this time is 5 degrees. If the preset temperature difference is 6 degrees and the preset fluctuation value is 2 degrees, determining that the difference between the outdoor temperature and the indoor temperature fluctuates up and down at the preset difference, and determining that the difference between the outdoor ambient temperature and the indoor ambient temperature is consistent with the preset difference. According to the scheme, when the difference value between the outdoor environment temperature and the indoor environment temperature is consistent with the preset difference value, the second pressure value acquired by the pressure sensor can be acquired, and the current residual refrigerant quantity is determined according to the average value of the second pressure value and the first pressure value. With this scheme, can be more accurate acquire the current surplus refrigerant volume in the refrigeration plant pipeline, satisfy user's user demand.
Optionally, in order to determine the refrigerant grade of the remaining refrigerant quantity of the refrigeration system, in the scheme, the refrigerant storage capacity of the refrigerant system is obtained, and the ratio of the current remaining refrigerant quantity to the refrigerant storage capacity is determined; and determining the refrigerant grade in the refrigeration system represented by the ratio according to the ratio of the current residual refrigerant amount to the refrigerant storage capacity.
Fig. 2 is a refrigerant grade comparison table provided in the embodiment of the present disclosure, and specifically as shown in fig. 2, in the comparison table, the higher the current remaining refrigerant amount ratio is, the higher the refrigerant grade is. For example, in this embodiment, if the refrigerant storage capacity is 1000g, the level indicated by the ratio may be determined according to the ratio of the current remaining refrigerant amount to the refrigerant storage capacity. In an optimized scheme, the refrigerant grade of the residual refrigerant quantity of the refrigeration system can be determined according to the ratio of the current residual refrigerant quantity to the actual total refrigerant quantity. The actual total refrigerant quantity is the sum of the nominal refrigerant quantity and the set refrigerant quantity, the nominal refrigerant quantity is the lowest refrigerant quantity of the refrigerating system in stable operation, and the set refrigerant quantity can be set in advance according to the needs of users. By the scheme, the corresponding refrigerant grade can be determined according to the residual refrigerant proportion in the pipeline of the refrigeration equipment. So that the user can obtain the current refrigerant state of the refrigeration equipment.
Optionally, in order to enable the user to determine the refrigerant state of the refrigeration equipment, when the ratio is not higher than the preset ratio, prompt information indicating the refrigerant level is pushed to the user.
In this aspect, the display device may be disposed in the refrigeration equipment, and the determined refrigeration level and the remaining refrigerant ratio may be displayed on the display device. In an optimized scheme, the refrigerant state table shown in fig. 3 may also be pushed to the relevant user. Specifically, the refrigerant state table can be displayed on a display device of the refrigeration equipment, and can also be pushed to a mobile terminal associated with the refrigeration equipment. Here, the display device may be a display panel, and the mobile terminal may be a mobile phone associated with the user. By the scheme, a user can acquire the refrigerant state of the refrigeration equipment in real time, so that the user can adjust the refrigerant quantity in the pipeline according to the refrigerant state.
Optionally, in order to ensure that the refrigeration system of the refrigeration equipment not only ensures normal operation of the system, but also ensures that a pressure sensor part forms a certain pressure, after the compressor of the refrigeration equipment is controlled to operate at a preset frequency, the opening degree of the air deflector of the refrigeration equipment can be adjusted to a first preset opening degree.
In this scheme, the first preset opening degree is the lowest opening degree at which the air deflector maintains the stable operation of the system, and specifically, the first opening degree value can be set according to different temperature requirements of a user, so that the refrigeration equipment can stably operate while the pressure sensor is ensured to acquire an accurate first pressure value, and the current residual refrigerant quantity can be determined according to the first pressure value.
Optionally, in order to ensure that the refrigeration system of the refrigeration device not only ensures normal operation of the system, but also ensures that a pressure sensor part forms a certain pressure, after the compressor of the refrigeration device is controlled to operate at a preset frequency, the opening of the throttle valve of the refrigeration device is adjusted to a second preset opening.
In the scheme, the second preset opening degree is the minimum opening degree of the throttle valve for maintaining the stable operation of the system, and specifically, the first opening degree value can be set according to the temperature difference value between the set temperature and the indoor environment temperature.
Optionally, in order to ensure that the refrigeration system of the refrigeration equipment not only ensures normal operation of the system, but also ensures that a pressure sensor part forms certain pressure, after the compressor of the refrigeration equipment is controlled to operate at a preset frequency, the rotating speed of the fan of the refrigeration equipment is adjusted to a preset rotating speed.
In the scheme, the preset air speed refers to the lowest air speed for maintaining the stable operation of the system by the indoor fan, and specifically, the preset air speed can be set according to the temperature of the evaporator coil.
Referring to fig. 4, an embodiment of the present disclosure provides a refrigerant quantity detection apparatus for a refrigeration system, including a control module 41, an obtaining module 42, and a determining module 43. The control module 41 is configured to control the compressor of the refrigeration apparatus to operate at a preset frequency when the refrigerant of the refrigeration system stops being added; the obtaining module 42 is configured to obtain a first pressure value collected by the pressure sensor after the compressor runs for a preset time period; the determining module 43 is configured to determine the refrigerant quantity corresponding to the first pressure value as the current remaining refrigerant quantity of the refrigeration system according to the corresponding relationship between the pressure values and the refrigerant.
By adopting the detection device for the refrigerant quantity of the refrigeration system, when the refrigerant of the refrigeration system stops adding, the refrigerant of the refrigeration system is determined to be added completely. And after the addition of the refrigerant is finished, controlling a compressor of the refrigeration equipment to operate at a preset frequency, collecting a first pressure value of the refrigeration system through a pressure sensor after the refrigeration equipment operates for a preset time length by arranging the pressure sensor on the refrigeration equipment, and determining the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the target refrigerant quantity. With this scheme, can add the refrigerant after the maintenance personal, according to the pressure value of refrigerating system's collection, confirm the refrigerant volume among the refrigerating system, provide a more accurate refrigerant volume detection mode for the user to the user knows the remaining refrigerant volume information of refrigerating system, whether suitable with this refrigerant volume of judging maintenance personal and adding, satisfies user's demand.
As shown in fig. 5, an embodiment of the present disclosure provides an air conditioner including a processor (processor)100 and a memory (memory) 101. Optionally, the apparatus may also include a Communication Interface (Communication Interface)102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 may communicate with each other via a bus 103. The communication interface 102 may be used for information transfer. The processor 100 may call logic instructions in the memory 101 to execute the method for detecting the refrigerant quantity of the refrigeration system according to the above embodiment.
In addition, the logic instructions in the memory 101 may be implemented in the form of software functional units and stored in a computer readable storage medium when the logic instructions are sold or used as independent products.
The memory 101, which is a computer-readable storage medium, may be used for storing software programs, computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure. The processor 100 executes functional applications and data processing by executing program instructions/modules stored in the memory 101, that is, implements the refrigerant quantity detection method for the refrigeration system in the above embodiments.
The memory 101 may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to the use of the terminal device, and the like. In addition, the memory 101 may include a high-speed random access memory, and may also include a nonvolatile memory.
The embodiment of the disclosure provides an air conditioner, which comprises the device for detecting the refrigerant quantity of a refrigerating system.
The embodiment of the disclosure provides a computer-readable storage medium, which stores computer-executable instructions configured to execute the method for detecting the refrigerant quantity of a refrigeration system.
Embodiments of the present disclosure provide a computer program product comprising a computer program stored on a computer readable storage medium, the computer program comprising program instructions that, when executed by a computer, cause the computer to perform the above-described method for refrigerant quantity detection in a refrigeration system.
The computer-readable storage medium described above may be a transitory computer-readable storage medium or a non-transitory computer-readable storage medium.
The technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, where the computer software product is stored in a storage medium and includes one or more instructions to enable a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method of the embodiments of the present disclosure. And the aforementioned storage medium may be a non-transitory storage medium comprising: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes, and may also be a transient storage medium.
The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. Furthermore, the words used in the specification are words of description only and are not intended to limit the claims. As used in the description of the embodiments and the claims, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. Similarly, the term "and/or" as used in this application is meant to encompass any and all possible combinations of one or more of the associated listed. Furthermore, the terms "comprises" and/or "comprising," when used in this application, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. Without further limitation, an element defined by the phrase "comprising an …" does not exclude the presence of other like elements in a process, method or apparatus that comprises the element. In this document, each embodiment may be described with emphasis on differences from other embodiments, and the same and similar parts between the respective embodiments may be referred to each other. For methods, products, etc. of the embodiment disclosures, reference may be made to the description of the method section for relevance if it corresponds to the method section of the embodiment disclosure.
Those of skill in the art would appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software may depend upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the disclosed embodiments. It can be clearly understood by the skilled person that, for convenience and brevity of description, the specific working processes of the system, the apparatus and the unit described above may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the embodiments disclosed herein, the disclosed methods, products (including but not limited to devices, apparatuses, etc.) may be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the units may be merely a logical division, and in actual implementation, there may be another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form. The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to implement the present embodiment. In addition, functional units in the embodiments of the present disclosure may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. In the description corresponding to the flowcharts and block diagrams in the figures, operations or steps corresponding to different blocks may also occur in different orders than disclosed in the description, and sometimes there is no specific order between the different operations or steps. For example, two sequential operations or steps may in fact be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved. Each block of the block diagrams and/or flowchart illustrations, and combinations of blocks in the block diagrams and/or flowchart illustrations, can be implemented by special purpose hardware-based systems that perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
Claims (10)
1. A method for detecting the refrigerant quantity of a refrigerating system is characterized by being applied to refrigerating equipment which is provided with a pressure sensor, and the method comprises the following steps:
when the refrigerant of the refrigeration system stops adding, controlling a compressor of the refrigeration equipment to operate at a preset frequency;
after the compressor runs for a preset time, acquiring a first pressure value acquired by the pressure sensor;
and determining the refrigerant quantity corresponding to the first pressure value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant.
2. The method of claim 1, wherein after the compressor is operated for a preset length of time, the method further comprises:
acquiring an outdoor environment temperature and an indoor environment temperature, determining a difference value between the outdoor environment temperature and the indoor environment temperature, and acquiring a second pressure value acquired by the pressure sensor when the difference value between the outdoor environment temperature and the indoor environment temperature is consistent with a preset difference value;
the determining, according to the corresponding relationship between the pressure values and the refrigerant, the refrigerant quantity corresponding to the first pressure value as the current remaining refrigerant quantity of the refrigeration system includes:
determining a pressure average of the first pressure value and the second pressure value;
and determining the refrigerant quantity corresponding to the pressure average value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure value and the refrigerant.
3. The method of claim 1, further comprising:
acquiring the refrigerant storage capacity of a refrigerant system, and determining the ratio of the current residual refrigerant amount to the refrigerant storage capacity;
and determining the refrigerant grade in the refrigeration system represented by the ratio according to the ratio of the current residual refrigerant amount to the refrigerant storage capacity.
4. The method of claim 3, further comprising:
and when the ratio is not higher than a preset ratio, pushing prompt information representing the refrigerant grade to a user.
5. The method of claim 1, wherein after controlling the compressor of the refrigeration appliance to operate at the preset frequency, the method further comprises:
and adjusting the opening degree of the air deflector of the refrigeration equipment to a first preset opening degree.
6. The method of claim 1, wherein after controlling the compressor of the refrigeration appliance to operate at the preset frequency, the method further comprises:
and adjusting the opening degree of the throttle valve of the refrigeration equipment to a second preset opening degree.
7. The method of claim 1, wherein after controlling the compressor of the refrigeration appliance to operate at the preset frequency, the method further comprises:
and adjusting the rotating speed of a fan of the refrigeration equipment to a preset rotating speed.
8. The utility model provides a device that is used for refrigerating system's refrigerant volume to detect, is applied to refrigeration plant, refrigeration plant disposes pressure sensor, its characterized in that includes:
the control module is configured to control a compressor of the refrigeration equipment to operate at a preset frequency when the refrigerant of the refrigeration system stops being added;
the acquisition module is configured to acquire a first pressure value acquired by the pressure sensor after the compressor runs for a preset time;
the determining module is configured to determine the refrigerant quantity corresponding to the first pressure value as the current residual refrigerant quantity of the refrigeration system according to the corresponding relation between the pressure values and the refrigerant.
9. An air conditioner comprising a processor and a memory storing program instructions, wherein the processor is configured to perform the method for refrigerant quantity detection for a refrigeration system of any of claims 1 to 7 when executing the program instructions.
10. An air conditioner characterized by comprising the device for detecting the refrigerant quantity of a refrigeration system as claimed in claim 8 or 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110105521.3A CN112880126A (en) | 2021-01-26 | 2021-01-26 | Method and device for detecting refrigerant quantity of refrigerating system and air conditioner |
| PCT/CN2021/113212 WO2022160672A1 (en) | 2021-01-26 | 2021-08-18 | Method and apparatus for measuring amount of refrigerant in refrigeration system, and air conditioner |
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| CN202110105521.3A CN112880126A (en) | 2021-01-26 | 2021-01-26 | Method and device for detecting refrigerant quantity of refrigerating system and air conditioner |
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| WO (1) | WO2022160672A1 (en) |
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| WO2022160672A1 (en) * | 2021-01-26 | 2022-08-04 | 青岛海尔空调器有限总公司 | Method and apparatus for measuring amount of refrigerant in refrigeration system, and air conditioner |
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| CN115790014A (en) * | 2022-11-14 | 2023-03-14 | 青岛海尔空调器有限总公司 | Refrigerant pressure detection method and device, electronic equipment, medium and air conditioner |
| CN115854488A (en) * | 2022-12-07 | 2023-03-28 | 青岛海信日立空调系统有限公司 | Air conditioning equipment and fault detection method |
| CN118099608B (en) * | 2024-04-29 | 2024-07-19 | 湖州三一装载机有限公司 | Control method of refrigerating system, related equipment and storage medium |
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