CN114576835A - Refrigerant leakage detection method, air conditioner and readable storage medium - Google Patents
Refrigerant leakage detection method, air conditioner and readable storage medium Download PDFInfo
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- CN114576835A CN114576835A CN202011385770.4A CN202011385770A CN114576835A CN 114576835 A CN114576835 A CN 114576835A CN 202011385770 A CN202011385770 A CN 202011385770A CN 114576835 A CN114576835 A CN 114576835A
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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
- F24F11/89—Arrangement or mounting of control or safety devices
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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
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/79—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling the direction of the supplied 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
- F24F11/88—Electrical aspects, e.g. circuits
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- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The invention discloses a refrigerant leakage detection method, which comprises the following steps: the method comprises the steps of obtaining the concentration of refrigerants detected by each refrigerant detection device arranged on the air conditioner, wherein the setting positions of the refrigerant detection devices are different; and outputting refrigerant leakage warning information when the concentration of at least one refrigerant detected by the refrigerant detection device is greater than a first preset concentration. The invention also provides an air conditioner and a readable storage medium. According to the refrigerant leakage detection method, the refrigerant detection devices are respectively arranged at different positions on the air conditioner, so that the refrigerant detection device arranged close to the refrigerant leakage position can timely and quickly detect the concentration of the leaked refrigerant as long as the refrigerant leaks, and the user or staff is warned or reminded to know the possible refrigerant leakage condition by outputting the refrigerant leakage warning information when the refrigerant is determined to leak.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a refrigerant leakage detection method, an air conditioner and a readable storage medium.
Background
In the air-conditioning industry, the application of the combustible refrigerant is more and more extensive at present, and the leakage safety problem of the combustible refrigerant is also more and more concerned. In the use of air conditioner, combustible refrigerant that various reasons lead to all appears leaking, for example the interior machine evaporimeter welds hourglass, the connecting pipe leaks, outer quick-witted condenser leaks, the four-way valve pipeline splits etc. when taking place combustible refrigerant and leaking, generally be difficult for noticing, when combustible refrigerant concentration is great, then have the burning risk, cause the potential safety hazard.
The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.
Disclosure of Invention
The invention mainly aims to provide a refrigerant leakage detection method, an air conditioner and a readable storage medium, and aims to solve the problems that a combustible refrigerant is generally not easy to detect when leaked, and combustion risks exist when the concentration of the combustible refrigerant is higher, so that potential safety hazards are caused.
In order to achieve the above object, the present invention provides a refrigerant leakage detection method, including the steps of:
the method comprises the steps of obtaining the concentration of refrigerants detected by each refrigerant detection device arranged on the air conditioner, wherein the setting positions of the refrigerant detection devices are different;
and outputting refrigerant leakage warning information when the concentration of at least one refrigerant detected by the refrigerant detection device is greater than a first preset concentration.
Optionally, when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, the step of outputting the refrigerant leakage warning information includes:
when the refrigerant concentration detected by at least one refrigerant detection device is higher than a first preset concentration, the position of the refrigerant detection device for detecting that the refrigerant concentration is higher than the first preset concentration is obtained;
determining a refrigerant leakage position according to the position;
and outputting the refrigerant leakage warning information containing the refrigerant leakage position.
Optionally, the step of outputting the refrigerant leakage warning information including the refrigerant leakage position includes:
acquiring a refrigerant pipeline schematic diagram of the air conditioner;
and marking refrigerant leakage warning information in the pipeline schematic diagram according to the refrigerant leakage position.
Optionally, when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, the step of outputting the refrigerant leakage warning information includes:
when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, acquiring a target refrigerant detection device with the detected refrigerant concentration greater than the first preset concentration;
acquiring a concentration difference between the concentration of a refrigerant detected by a target refrigerant detection device and the concentration of the refrigerant detected by other refrigerant detection devices, wherein the other refrigerant detection devices are the refrigerant detection devices except the target refrigerant detection device;
and outputting the refrigerant leakage warning information when the concentration difference is smaller than a preset threshold value.
Optionally, after the step of obtaining a concentration difference between the refrigerant concentration detected by the target refrigerant detection device and the refrigerant concentration detected by the other refrigerant detection devices, the refrigerant leakage detection method further includes:
and outputting prompt information of abnormality of the refrigerant detection device when the concentration difference is greater than or equal to a preset threshold value.
Optionally, when the concentration difference is greater than or equal to a preset threshold, the step of outputting a prompt message that the refrigerant detection device is abnormal includes:
when the concentration difference is greater than or equal to a preset threshold value, acquiring position information of the target refrigerant detection device;
and outputting prompt information of the abnormality of the refrigerant detection device according to the position information.
Optionally, at the same time or after the step of outputting the refrigerant warning information, at least one of the following steps is performed:
increasing a rotational frequency of an indoor fan of the air conditioner;
controlling an air deflector of the air conditioner to rotate;
and starting a fresh air exchange function of the air conditioner.
Optionally, the step of controlling the air deflector of the air conditioner to rotate comprises:
acquiring indoor position parameters of the air conditioner;
and acquiring a target angle of the air deflector according to the position parameters, and controlling the air deflector to rotate to the target angle.
Further, to achieve the above object, the present invention also provides an air conditioner including: the refrigerant leakage detection method comprises a memory, a processor and a refrigerant leakage detection program which is stored in the memory and can run on the processor, wherein when the refrigerant leakage detection program is executed by the processor, the steps of the refrigerant leakage detection method are realized.
In addition, to achieve the above object, the present invention further provides a readable storage medium, wherein a refrigerant leakage detection program is stored on the readable storage medium, and when being executed by the processor, the refrigerant leakage detection program implements the steps of the refrigerant leakage detection method as described above.
The refrigerant leakage detection method provided by the invention has the advantages that the refrigerant detection devices are respectively arranged at different positions on the air conditioner, so that the refrigerant detection device arranged close to the refrigerant leakage position can timely and quickly detect the concentration of the leaked refrigerant as long as the refrigerant leaks, can greatly shorten the time of refrigerant leakage and diffusion to the refrigerant detection device, can effectively improve the response speed of refrigerant leakage detection, realizes the rapid detection of refrigerant leakage, when at least one refrigerant detection device in the refrigerant detection devices detects that the refrigerant concentration is greater than a first preset concentration, namely the refrigerant leakage is possible in a large probability, outputs refrigerant leakage warning information to warn or remind a user or a worker of the possible occurrence of refrigerant leakage, the potential safety hazard that the refrigerant is possibly combusted due to refrigerant leakage is eliminated, and meanwhile the air conditioner is maintained and repaired in time.
Drawings
Fig. 1 is a block diagram illustrating an air conditioner according to various embodiments of a refrigerant leakage detection method of the present invention;
fig. 2 is a schematic flow chart illustrating a refrigerant leakage detection method according to a first embodiment of the present invention;
FIG. 3 is a schematic view of an indoor unit of an air conditioner;
fig. 4 is a schematic flow chart illustrating a refrigerant leakage detection method according to a second embodiment of the present invention;
fig. 5 is a flowchart illustrating a refrigerant leakage detection method according to a third embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The terminal equipment is an air conditioner, the air conditioner is provided with at least two refrigerant detection devices, such as refrigerant sensors, and the refrigerant detection devices are used for detecting whether refrigerant circulating in the air conditioner leaks or not.
Referring to fig. 1, fig. 1 is a block diagram illustrating an air conditioner according to various embodiments of a refrigerant leakage detection method of the present invention, where the air conditioner may include: a processor 101, a communication bus 102, and a memory 103. Those skilled in the art will appreciate that the block diagram of the air conditioner shown in fig. 1 does not constitute a limitation of the terminal device, which may include more or less components than those shown, or combine some components, or a different arrangement of components. The processor 101 is a control center of the air conditioner, the communication bus 102 is used for realizing connection and communication among various components of the air conditioner, and the memory 103 stores an operating system and a refrigerant leakage detection program. The processor 101 executes the refrigerant leakage detection program stored in the memory 103 to implement the steps of the refrigerant leakage detection method according to the embodiments of the present invention.
Based on the structural block diagram of the terminal device, the embodiments of the refrigerant leakage detection method are provided.
Referring to fig. 2, fig. 2 is a schematic flow chart of a refrigerant leakage detection method according to a first embodiment of the present invention. In this embodiment, the refrigerant leakage detection method includes the steps of:
step S10, acquiring the refrigerant concentration detected by each refrigerant detection device arranged on the air conditioner, wherein the refrigerant detection devices are arranged at different positions;
in the present embodiment, the embodiment terminal device is an air conditioner. The air conditioner is provided with at least two refrigerant detection devices such as refrigerant sensors, wherein the refrigerant detection devices are used for detecting the refrigerant concentration of air near the positions of the refrigerant sensors, the positions of the refrigerant detection devices in the air conditioner are different, it can be understood that the refrigerant detection devices can be arranged in an indoor unit or an outdoor unit of the air conditioner, if the at least two refrigerant detection devices can be arranged at different positions of the indoor unit, optionally, refrigerant leakage is easy to occur due to bending parts at two ends of a heat exchanger of the indoor unit, the at least two refrigerant detection devices can be arranged at bending parts at two ends of the heat exchanger respectively, and the outdoor unit is similar.
For example, referring to fig. 3, fig. 3 is a schematic structural diagram of an indoor unit of an air conditioner, in which the indoor unit has a large transverse width, the distance from the leftmost space 1 to the rightmost space 3 is generally 700-1100 mm, and due to the complex structure of the indoor unit, there are obvious structural members between the space 1 and the space 2, and between the space 2 and the space 3 in the indoor unit, which block the flow in the left-right direction. In a refrigeration system, the locations where refrigerant is prone to leak are generally welding locations, joints, corners exceeding 90 degrees, and other structurally weak locations, such as space 1 (with a copper pipe elbow) and space 3 (with a large number of welded semi-circular pipes) in fig. 3. It can be understood that when the refrigerant leakage position is far from the refrigerant detection device, and/or a complex structure between the refrigerant leakage position and the refrigerant detection device prevents the leaked refrigerant from diffusing to the refrigerant detection device, a long delay may be generated when the refrigerant detection device detects the refrigerant leakage, or the refrigerant detection device may not detect the refrigerant leakage at all because the refrigerant is not diffused to other positions when the refrigerant detection device is located. Wherein, can set up one or at least two refrigerant detection device respectively in space 1 and space 3 of indoor set, optionally, when setting up two at least refrigerant detection device in space 1 or space 3, set up two at least refrigerant detection device respectively in the different positions in space 1 or space 3, optionally, can set up two at least refrigerant detection device equidistance in the different positions in space 1 or space 3, it should be said that, can avoid because only set up one refrigerant detection device when setting up two at least refrigerant detection device in space 1 or space 3, when the refrigerant detection device breaks down, lead to unable realization or in time to discover the refrigerant and reveal the detection.
Step S20, when the refrigerant concentration detected by at least one of the refrigerant detection devices is greater than a first preset concentration, outputting refrigerant leakage warning information.
It should be noted that the first preset concentration is a preset concentration value, and is used to determine that a potential safety hazard exists in the early warning concentration of refrigerant leakage or determine a minimum concentration value at which refrigerant leakage occurs with a high probability.
In the practical application process, as the refrigerant detection devices are arranged at different positions of the air conditioner, for example, the refrigerant detection devices are arranged at the positions of the air conditioner structures, such as the welding position, the connecting position and the bending angle position which is more than 90 degrees, where refrigerant leakage easily occurs, and the refrigerant detection device arranged close to the refrigerant leakage position can timely and quickly detect the concentration of the leaked refrigerant as long as the refrigerant leaks, and as long as the concentration of the refrigerant detected by at least one refrigerant detection device is more than the first preset concentration, namely, the early warning concentration of the refrigerant leakage is reached, so that potential safety hazards exist, and refrigerant leakage occurs probably, outputs refrigerant leakage warning information to warn or remind a user or a worker of the possible occurrence of refrigerant leakage, the potential safety hazard that the refrigerant is possibly combusted due to refrigerant leakage is eliminated, and meanwhile the air conditioner is maintained and repaired in time.
It should be noted that, referring to fig. 3, in the practical application process, it can be known from the analysis of experimental data obtained by simulation based on the possible situations of various refrigerant leaks that, compared with the case where only one refrigerant sensor or one refrigerant detection device is disposed in the space 1 or the space 3, and one refrigerant sensor or another refrigerant detection device is disposed in each of the space 1 and the space 3 of the indoor unit, the detection time of the detected refrigerant leak is shortened by about 52%, and the method is suitable for various refrigerant leak scenarios.
Because the position that takes place the refrigerant relatively easily and reveal in the air conditioner is not unique, compare in setting up a refrigerant detection device at the air conditioner, the position that reveals at the refrigerant is far away with the distance of refrigerant detection device place position, or because the inner structure of air conditioner blocks when the refrigerant that leads to revealing can't in time diffuse to refrigerant detection device, refrigerant detection device detects that there is time delay or unable detection problem in the refrigerant concentration.
In the technical scheme disclosed by the embodiment, the refrigerant detection devices are respectively arranged at different positions on the air conditioner, so that the refrigerant detection device arranged close to the refrigerant leakage position can timely and quickly detect the concentration of the leaked refrigerant as long as the refrigerant leaks, can greatly shorten the time of refrigerant leakage and diffusion to the refrigerant detection device, can effectively improve the response speed of refrigerant leakage detection, realizes the rapid detection of refrigerant leakage, when at least one refrigerant detection device of the refrigerant detection devices detects that the refrigerant concentration is greater than a first preset concentration, namely the refrigerant leakage is possible in a high probability, outputs refrigerant leakage warning information to warn or remind a user or a worker of the possible occurrence of refrigerant leakage, the potential safety hazard that the refrigerant is possibly combusted due to refrigerant leakage is eliminated, and meanwhile the air conditioner is maintained and repaired in time.
Referring to fig. 4, fig. 4 is a schematic flow chart illustrating a refrigerant leakage detection method according to a second embodiment of the present invention. In this embodiment, the step S20, namely when the refrigerant concentration detected by at least one of the refrigerant detection devices is greater than the first preset concentration, outputting the refrigerant leakage warning information includes:
step S21, when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, detecting the position of the refrigerant detection device with the refrigerant concentration greater than the first preset concentration;
step S22, determining a refrigerant leakage position according to the position;
and step S23, outputting the refrigerant leakage warning information containing the refrigerant leakage position.
In the practical application process, compared with the method that only one refrigerant detection device is adopted to judge whether the refrigerant leaks, when the refrigerant leaks, the refrigerant leakage position cannot be positioned or the position range area of the air conditioner where the refrigerant leakage position is located cannot be limited.
In this embodiment, when refrigerant leakage occurs, based on the refrigerant detection devices closer to the refrigerant leakage position, the higher the detected refrigerant concentration is, when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, that is, there is a safety hazard when the early warning concentration of refrigerant leakage is reached, and refrigerant leakage occurs at a high probability, the position of the refrigerant detection device having the detected refrigerant concentration greater than the first preset concentration, that is, based on the position of the refrigerant detection device, the range area where the refrigerant leakage position is located is determined or limited, the different refrigerant detection devices arranged on the air conditioner can be distinguished by detecting and marking the refrigerant detection devices arranged at different positions on the air conditioner in advance, optionally, the detection mark can be associated with the setting information of the refrigerant detection device, such as the specific position arranged on the air conditioner, the working time of the refrigerant detection device, and the like, the position of the refrigerant detection device can be obtained indirectly by obtaining the specific position of the refrigerant detection device in the setting information associated with the detection mark.
The method comprises the steps that a refrigerant leakage position is determined according to the position, the higher the concentration of a detected refrigerant is based on refrigerant detection devices arranged at different positions on the air conditioner and on the basis of the refrigerant detection devices closer to the refrigerant leakage position, when the refrigerant is leaked, a position range area where the refrigerant leakage position is located is preset for the position of each refrigerant detection device, the refrigerant leakage position is determined according to the position of the refrigerant detection device, namely, the position range area where the refrigerant leakage position is located is obtained, and the position range area is related to the position of the refrigerant detection device; the position of the refrigerant detection device may also be used as a reference point, and a position area range within a preset distance range is obtained by taking the reference point as a center to determine the refrigerant leakage position, which is not limited in this embodiment.
Based on the determined refrigerant leakage position, outputting refrigerant leakage warning information containing the refrigerant leakage position to inform a user or related staff to quickly locate the specific position of refrigerant leakage or the range area of the specific position, so as to confirm whether the refrigerant leaks or maintain the refrigerant leakage position.
Optionally, the step S23, namely, the step of outputting the refrigerant leakage warning information including the refrigerant leakage position includes:
acquiring a refrigerant pipeline schematic diagram of the air conditioner;
and marking refrigerant leakage warning information in the pipeline schematic diagram according to the refrigerant leakage position.
The refrigerant pipeline schematic diagram is used for showing a pipeline schematic diagram of the circulation of the refrigerant of the air conditioner along a pipeline.
The method comprises the steps of obtaining a refrigerant pipeline schematic diagram of the air conditioner, and obtaining the refrigerant pipeline schematic diagram through directly obtaining the pre-stored refrigerant pipeline schematic diagram. The refrigerant leakage warning information is marked in the pipeline schematic diagram according to the refrigerant leakage position, and the refrigerant leakage warning information can be marked corresponding to the pipeline schematic diagram directly on the basis of the refrigerant leakage position determined through the position of the refrigerant detection device.
Optionally, the refrigerant pipeline schematic diagram further includes a refrigerant detection device correspondingly arranged at different positions on the air conditioner, the refrigerant leakage warning information is marked in the pipeline schematic diagram according to the refrigerant leakage position, the refrigerant leakage position can be further determined in the pipeline schematic diagram for marking based on the determined position of the refrigerant detection device, and the specific position range area of the refrigerant leakage can be conveniently and clearly obtained by marking the refrigerant leakage warning information in the pipeline schematic diagram.
In the technical scheme disclosed in this embodiment, when the refrigerant concentration detected by the refrigerant detection device is greater than a first preset concentration, that is, the early warning concentration that can determine the refrigerant leakage is reached, the position of the refrigerant leakage is further determined by determining the position of the refrigerant detection device, and then the refrigerant leakage warning information containing the refrigerant leakage position is output to prompt a user or a related worker that the refrigerant leakage exists, and the user or the related worker is informed to quickly locate the specific position of the refrigerant leakage or the range area of the specific position, so as to confirm whether the refrigerant leaks or maintain the refrigerant leakage position.
Referring to fig. 5, fig. 5 is a schematic flow chart of a refrigerant leakage detection method according to a third embodiment of the present invention. In this embodiment, the step S20, namely when the refrigerant concentration detected by at least one of the refrigerant detection devices is greater than the first preset concentration, outputting the refrigerant leakage warning information includes:
step S24, when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, acquiring a target refrigerant detection device with the detected refrigerant concentration greater than the first preset concentration;
in the practical application process, the refrigerant leaks and then diffuses along with the air flow, the refrigerant detection device closer to the refrigerant leakage position detects that the refrigerant concentration is higher, and it can be understood that the refrigerant detection devices arranged at different positions of the air conditioner are in a space, so that the refrigerant concentrations detected by the refrigerant sensors do not differ too much, and particularly, the refrigerant concentration reaches the balance condition in the space for a long time after the refrigerant leakage occurs.
When the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, that is, when a potential safety hazard exists when an early warning concentration of refrigerant leakage is reached, and refrigerant leakage occurs at a high probability, a target refrigerant detection device with the detected refrigerant concentration greater than the first preset concentration is obtained, the target refrigerant detection device can distinguish different refrigerant detection devices arranged on the air conditioner by detecting and marking the refrigerant detection devices arranged at different positions on the air conditioner in advance, optionally, the detection mark can be associated with setting information of the refrigerant detection device, such as specific positions arranged on the air conditioner, working time of the refrigerant detection device and the like, the target refrigerant detection device can obtain a detection mark with the detected refrigerant concentration greater than the first preset concentration first, and then the target refrigerant detection device is determined by the detection mark, and it needs to be noted that the target refrigerant detection device refers to detect refrigerant leakage, and a refrigerant detection device closest to the refrigerant leakage position.
Step S25, obtaining the concentration difference between the refrigerant concentration detected by the target refrigerant detection device and the refrigerant concentration detected by other refrigerant detection devices, wherein the other refrigerant detection devices are the refrigerant detection devices except the target refrigerant detection device;
and step S26, outputting refrigerant leakage warning information when the concentration difference is smaller than a preset threshold value.
The target refrigerant detection device is a refrigerant detection device closest to a refrigerant leakage position when refrigerant leakage occurs. The other refrigerant detection devices are the refrigerant detection devices except the target refrigerant detection device among the refrigerant detection devices arranged at different positions of the air conditioner, that is, the other refrigerant devices can be simply understood as the refrigerant detection devices which are not closest to the refrigerant leakage position when the refrigerant leakage occurs.
The preset threshold is preset and used for judging whether the concentration difference of the concentration of the refrigerant detected by the refrigerant detection device closest to the refrigerant leakage position and the refrigerant detection device not closest to the refrigerant leakage position belongs to a reasonable concentration value of refrigerant leakage based on the same refrigerant leakage position in the air conditioner in the same space, wherein the reasonable concentration value can be a point value or a concentration interval value. It should be noted that, if the concentration difference belongs to a reasonable concentration value of refrigerant leakage, the refrigerant leakage is indicated; and if the concentration difference does not belong to the reasonable concentration value of refrigerant leakage, indicating that the refrigerant detection device is abnormal.
On the basis of a refrigerant detection device closer to a refrigerant leakage position, the detected refrigerant concentration is higher, the concentration difference between the refrigerant concentration obtained by detection of a target refrigerant detection device and the refrigerant concentration obtained by detection of other refrigerant detection devices is obtained, when the concentration difference is smaller than a preset threshold value, namely the concentration difference in the same space is within a reasonable range, the refrigerant leakage can be judged, and warning information and a warning user or a worker are output to warn that the refrigerant leakage occurs.
Alternatively, the step S22, after obtaining the concentration difference between the refrigerant concentration detected by the target refrigerant detecting device and the refrigerant concentration detected by the other refrigerant detecting devices, includes:
and outputting prompt information of abnormality of the refrigerant detection device when the concentration difference is greater than or equal to a preset threshold value.
It should be noted that, in the same space, especially in the case where the refrigerant concentration is balanced in the space after the refrigerant leakage occurs for a long time, the refrigerant concentrations detected by the refrigerant detection devices disposed at different positions of the air conditioner do not differ too much, and if the refrigerant concentrations differ too much, it can be considered that the sensor fails at a high probability.
When the concentration difference is larger than or equal to the preset threshold value, namely the concentration difference in the same space is in an unreasonable range, the abnormal prompt information of the refrigerant detection device can be output, and a user or a worker is reminded that the refrigerant detection device is abnormal, so that the air conditioner can be maintained or maintained in time.
As an optional implementation manner, when the concentration difference is greater than or equal to a preset threshold, the step of outputting a prompt message of abnormality of the refrigerant detection device includes:
when the concentration difference is larger than or equal to a preset threshold value, acquiring position information of the target refrigerant detection device;
and outputting prompt information of the abnormality of the refrigerant detection device according to the position information.
The method comprises the steps of obtaining position information of a target refrigerant detection device based on detection marks of refrigerant detection devices arranged at different positions on an air conditioner in advance to distinguish the different refrigerant detection devices arranged on the air conditioner, wherein the detection marks are associated with setting information of the refrigerant detection devices, such as specific positions arranged on the air conditioner and working time of the refrigerant detection devices, obtaining the position information of the target refrigerant detection device by obtaining the target refrigerant detection device firstly, namely obtaining the refrigerant detection device corresponding to the detection mark with the detected refrigerant concentration being greater than a first preset concentration, indirectly obtaining the specific position of the refrigerant detection device in the setting information associated with the detection marks to obtain the position information of the target refrigerant detection device, and outputting abnormal prompt information of the refrigerant detection device according to the position information to remind a user or a worker that the refrigerant detection device is abnormal, so as to repair or maintain the air conditioner in time. Optionally, the step of obtaining the position of the target refrigerant detection device includes obtaining position information of the target refrigerant detection device and other refrigerant detection devices corresponding to the refrigerant concentration difference detected by the target refrigerant detection device being greater than or equal to a preset threshold, and considering position information of the other refrigerant detection devices corresponding to the refrigerant concentration difference detected by the target refrigerant detection device being greater than or equal to the preset threshold, so as to further clarify an abnormal refrigerant detection device among the plurality of refrigerant detection devices disposed at different positions.
Optionally, before the step of outputting the indication information of the abnormality of the refrigerant detection device according to the position information, the step of obtaining the working time length of the refrigerant detection device in the setting information associated with the detection mark by combining to determine whether the refrigerant detection device is abnormal or not, that is, when the working time length of the refrigerant detection device is longer than a preset time length, the step of outputting the indication information of the abnormality of the refrigerant detection device according to the position information may be performed, wherein the working time length of the refrigerant detection device is longer than the preset time length to indicate that the refrigerant detection device is aged or failed due to long working time, and whether the refrigerant detection device is abnormal or not may be further determined by the long working time length of the refrigerant detection device.
In the technical scheme disclosed in this embodiment, a concentration difference between the refrigerant concentration detected by the target refrigerant detection device and the refrigerant concentration detected by other refrigerant detection devices is obtained, whether the refrigerant leaks or whether the refrigerant detection device is abnormal is determined according to the comparison relationship between the concentration difference and a preset threshold, and the refrigerant concentration detected by the refrigerant detection devices arranged at different positions on the air conditioner is evaluated, so that the accuracy of judging the leakage of the refrigerant can be improved under the condition that the refrigerant detection device is effective, and when the refrigerant detection device is abnormal, a user or a worker is reminded that the refrigerant detection device is abnormal, so that the air conditioner can be maintained or maintained in time.
Based on the fourth embodiment of the refrigerant leakage detection method provided in any of the above embodiments, in this embodiment, at least one of the following steps is executed while or after the refrigerant leakage warning information is output in step S20:
increasing a rotational frequency of an indoor fan of the air conditioner;
controlling an air deflector of the air conditioner to rotate;
and starting a fresh air exchange function of the air conditioner.
According to the research on related American AHRI, under the condition of the same combustible refrigerant leakage, the fan operates and ventilates in a continuous ventilation state and with a delay time of 15s after the leakage, the concentration change condition of the combustible refrigerant in a room is greatly different from the combustion risk of the refrigerant, the combustion risk of the refrigerant under the continuous ventilation is much smaller than that of the delay ventilation, the rotation frequency of the fan is accelerated by starting the fan or under the condition of starting the fan, so that the air flow is accelerated to reduce the concentration of the combustible refrigerant in the surrounding environment where the combustible refrigerant leakage position is located, the combustion risk of the combustible refrigerant is reduced, and the safety of the combustible refrigerant after the leakage is improved.
In the practical application process, in order to realize the purpose of quick response after the leakage of the combustible refrigerant, reducing the combustion risk of the combustible refrigerant and improving the safety after the leakage of the combustible refrigerant, the operation of increasing the rotating frequency of an indoor fan of the air conditioner, controlling the air deflector of the air conditioner to rotate and opening at least one of the fresh air changing functions of the air conditioner is carried out, so that when the leakage of the refrigerant is carried out, the concentration of the refrigerant is quickly increased for avoiding the concentration of the refrigerant gathering refrigerant, the air flow is timely accelerated to improve the diffusion speed of the refrigerant.
Optionally, the step of increasing the rotation frequency of the indoor fan of the air conditioner includes: and when the indoor fan is in a closed state, the indoor fan is started, or when the indoor fan is in an open state, the rotation frequency of the indoor fan is improved.
Optionally, the step of controlling the air deflector of the air conditioner to rotate includes:
acquiring indoor position parameters of the air conditioner;
and acquiring a target angle of the air deflector according to the position parameter, and controlling the air deflector to rotate to the target angle.
The method comprises the steps of obtaining the position parameters of the air conditioner through a distance detection device arranged on an air conditioner indoor unit, obtaining a first distance between the air conditioner indoor unit and the left side wall of a room if the environment where the air conditioner indoor unit is located, namely the room, is obtained through the distance detection device, obtaining a second distance between the air conditioner indoor unit and the right side wall of the room through the distance detection device, and further determining the position parameters of the air conditioner. In the embodiment, if a refrigerant leaks, the refrigerant is concentrated around the air conditioner, so that the concentration of the refrigerant is high, and under the condition that the indoor position parameter of the air conditioner is clear, the target angle of the air guide strip is obtained according to the position parameter of the air conditioner, it can be understood that when the first distance is smaller than or equal to the second distance, the air guide strip of an indoor fan of the air conditioner is deviated to the right side wall of the room, and the target angle of the air guide strip is deviated to the right side wall of the room; when the first distance is larger than the second distance, the air guide strip of the indoor fan of the air conditioner is deviated to the left side wall of a room, the target angle of the air guide strip is deviated to the left side wall of the room, the air guide strip of the indoor fan of the air conditioner is deviated to the target angle, so that the air outlet of the indoor fan is blown out towards the direction corresponding to the target angle, the combustible refrigerant gathered around the air conditioner is blown towards the direction corresponding to the target angle, and the gathering of the combustible refrigerant on the walls around the air conditioner is avoided.
In the technical scheme disclosed in this embodiment, as long as there is refrigerant leakage or the refrigerant concentration is higher in the environment where the air conditioner is located, that is, the refrigerant concentration is greater than the first preset concentration, through at least one of the following operations, for example, increasing the rotation frequency of the indoor fan of the air conditioner, the air deflector of the air conditioner is controlled to rotate and the fresh air exchanging function of the air conditioner is started, so that the refrigerant concentration of the surrounding environment where the air conditioner is located is timely reduced by accelerating the air flow, quick response to refrigerant leakage is realized, the refrigerant combustion risk is reduced, and the safety is improved.
The invention also proposes a terminal device, comprising: the method comprises a memory, a processor and a refrigerant leakage detection program which is stored in the memory and can run on the processor, wherein the refrigerant leakage detection program realizes the steps of the refrigerant leakage detection method in any embodiment when being executed by the processor.
The invention further provides a readable storage medium, which stores a refrigerant leakage detection program, and the refrigerant leakage detection program, when executed by a processor, implements the steps of the refrigerant leakage detection method according to any one of the above embodiments.
In the embodiments of the terminal device and the readable storage medium provided by the present invention, all technical features of the embodiments of the refrigerant leakage detection method are included, and the contents of the expansion and the explanation of the specification are basically the same as those of the embodiments of the refrigerant leakage detection method, and are not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a mobile terminal (such as a mobile phone, a computer, a server, a controlled terminal, or a network device) to execute the method of each embodiment of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A refrigerant leakage detection method is characterized by comprising the following steps:
the method comprises the steps of obtaining the concentration of refrigerants detected by each refrigerant detection device arranged on the air conditioner, wherein the setting positions of the refrigerant detection devices are different;
and outputting refrigerant leakage warning information when the concentration of at least one refrigerant detected by the refrigerant detection device is greater than a first preset concentration.
2. The refrigerant leakage detection method according to claim 1, wherein the step of outputting the refrigerant leakage warning information when the refrigerant concentration detected by at least one of the refrigerant detection devices is greater than a first preset concentration includes:
when the refrigerant concentration detected by at least one refrigerant detection device is higher than a first preset concentration, the position of the refrigerant detection device for detecting that the refrigerant concentration is higher than the first preset concentration is obtained;
determining a refrigerant leakage position according to the position;
and outputting the refrigerant leakage warning information containing the refrigerant leakage position.
3. The refrigerant leakage detection method according to claim 2, wherein the outputting of the refrigerant leakage warning information including the refrigerant leakage position includes:
acquiring a refrigerant pipeline schematic diagram of the air conditioner;
and marking refrigerant leakage warning information in the pipeline schematic diagram according to the refrigerant leakage position.
4. The refrigerant leakage detection method according to claim 1, wherein the step of outputting the refrigerant leakage warning information when the refrigerant concentration detected by the at least one refrigerant detection device is greater than a first preset concentration includes:
when the refrigerant concentration detected by at least one refrigerant detection device is greater than a first preset concentration, acquiring a target refrigerant detection device with the detected refrigerant concentration greater than the first preset concentration;
acquiring a concentration difference between the refrigerant concentration detected by a target refrigerant detection device and the refrigerant concentration detected by other refrigerant detection devices, wherein the other refrigerant detection devices are the refrigerant detection devices except the target refrigerant detection device;
and outputting the refrigerant leakage warning information when the concentration difference is smaller than a preset threshold value.
5. The refrigerant leakage detection method according to claim 4, wherein after the step of obtaining a concentration difference between the refrigerant concentration detected by the target refrigerant detection device and the refrigerant concentration detected by the other refrigerant detection devices, the refrigerant leakage detection method further comprises:
and outputting prompt information of abnormality of the refrigerant detection device when the concentration difference is greater than or equal to a preset threshold value.
6. The refrigerant leakage detection method according to claim 5, wherein the step of outputting a notification message of an abnormality of the refrigerant detection device when the concentration difference is greater than or equal to a preset threshold value includes:
when the concentration difference is greater than or equal to a preset threshold value, acquiring position information of the target refrigerant detection device;
and outputting prompt information of the abnormality of the refrigerant detection device according to the position information.
7. The refrigerant leakage detection method of claim 1, wherein at least one of the following steps is performed simultaneously with or after the step of outputting the refrigerant warning information:
increasing a rotational frequency of an indoor fan of the air conditioner;
controlling an air deflector of the air conditioner to rotate;
and starting a fresh air exchange function of the air conditioner.
8. The refrigerant leakage detection method as claimed in claim 7, wherein the step of controlling the rotation of the air deflector of the air conditioner comprises:
acquiring the position parameters of the air conditioner in a room;
and acquiring a target angle of the air deflector according to the position parameter, and controlling the air deflector to rotate to the target angle.
9. An air conditioner, comprising: a memory, a processor, and a refrigerant leakage detection program stored in the memory and executable on the processor, wherein the refrigerant leakage detection program, when executed by the processor, implements the steps of the refrigerant leakage detection method according to any one of claims 1 to 8.
10. A readable storage medium, wherein the readable storage medium stores a refrigerant leakage rapid detection program, and the refrigerant leakage rapid detection program, when executed by a processor, implements the steps of the refrigerant leakage detection method according to any one of claims 1 to 8.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107984A (en) * | 2019-04-29 | 2019-08-09 | 广东美的制冷设备有限公司 | Coolant leakage control method, system and the air-conditioning of air-conditioning |
| CN111503759A (en) * | 2020-04-29 | 2020-08-07 | 广东美的制冷设备有限公司 | Air conditioner outdoor unit, refrigerant detection method and storage medium |
| WO2020220658A1 (en) * | 2019-04-29 | 2020-11-05 | 广东美的制冷设备有限公司 | Air conditioner indoor unit |
-
2020
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110107984A (en) * | 2019-04-29 | 2019-08-09 | 广东美的制冷设备有限公司 | Coolant leakage control method, system and the air-conditioning of air-conditioning |
| WO2020220658A1 (en) * | 2019-04-29 | 2020-11-05 | 广东美的制冷设备有限公司 | Air conditioner indoor unit |
| CN111503759A (en) * | 2020-04-29 | 2020-08-07 | 广东美的制冷设备有限公司 | Air conditioner outdoor unit, refrigerant detection method and storage medium |
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