CN115111703B - Method, terminal and storage medium for detecting filth blockage of water-cooled air conditioner - Google Patents
Method, terminal and storage medium for detecting filth blockage of water-cooled air conditioner Download PDFInfo
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- CN115111703B CN115111703B CN202210720892.7A CN202210720892A CN115111703B CN 115111703 B CN115111703 B CN 115111703B CN 202210720892 A CN202210720892 A CN 202210720892A CN 115111703 B CN115111703 B CN 115111703B
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/52—Indication arrangements, e.g. displays
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/56—Remote control
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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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The application provides a method, a terminal and a storage medium for detecting dirt blocking of a water-cooled air conditioner. The method comprises the following steps: acquiring a return air temperature, and acquiring an air supply temperature, a water supply temperature and a water outlet temperature when the return air temperature meets a state detection starting condition; when the return air temperature and the supply air temperature meet the air blocking state conditions, and/or the water supply temperature and the outlet water temperature meet the water blocking state conditions, executing corresponding checking tasks of abnormal state reasons; generating an inspection result when the cause of the corresponding abnormal state is inspected; otherwise, generating a hardware checking instruction. The application can judge whether the dirty blockage occurs based on the air conditioner operation parameters, and automatically execute the related abnormal state reason checking task when judging that the dirty blockage exists, so as to realize the automatic checking of the dirty blockage cause and improve the judging efficiency.
Description
Technical Field
The present application relates to the field of air conditioning control technologies, and in particular, to a method, a terminal, and a storage medium for detecting dirty blockage of a water-cooled air conditioner.
Background
The conditions of insufficient air quantity and insufficient water quantity often appear at the tail end of the Chiller water system air conditioner, and the operation effect of equipment is affected. In the case of such problem investigation, professional staff having a certain technical and maintenance experience of heating and ventilation industry is required to conduct the investigation. Thereby influencing the maintenance labor cost and the situation that the equipment cannot normally operate in a short time. The air quantity and water quantity measuring device is added for each terminal device, and a great deal of cost is required to be input for connecting the device into a control system. At present, aiming at the problem that the air quantity and the water quantity are insufficient at the tail end of an air conditioner of a water system, the traditional method adopts regular manual maintenance and inspection to ensure the operation of the system, the frequency and the depth of the maintenance and inspection simultaneously lead to the increase of operation and maintenance cost, and the problem that the dirt blockage is generated in the non-maintenance and inspection period and cannot be found in time, so that the timeliness of the dirt blockage inspection is poor exists.
Disclosure of Invention
The embodiment of the application provides a method, a terminal and a storage medium for detecting filth blockage of a water-cooled air conditioner, which are used for solving the problem of poor timeliness of a traditional filth blockage detection scheme.
In a first aspect, an embodiment of the present application provides a method for detecting a filth blockage of a water-cooled air conditioner, including:
acquiring a return air temperature, and acquiring an air supply temperature, a water supply temperature and a water outlet temperature when the return air temperature meets a state detection starting condition;
when the return air temperature and the supply air temperature meet the air blocking state conditions, and/or the water supply temperature and the outlet water temperature meet the water blocking state conditions, executing corresponding checking tasks of abnormal state reasons;
generating an inspection result when the cause of the corresponding abnormal state is inspected; otherwise, generating a hardware checking instruction.
In one possible implementation, the hardware check item instruction includes: abnormal temperature inspection, installation setting inspection and abnormal thermal load inspection of the water outlet;
wherein the installation setting check includes: short circuit checking of air supply and return air, checking of air supply/return air inlet in service area and error checking of binding point.
In one possible implementation, before the return air temperature is obtained, the method further comprises:
acquiring an air conditioner operation mode, and determining a state detection starting condition, an air blocking state condition and a water blocking state condition according to the air conditioner operation mode; the air conditioner operation modes comprise a refrigerating mode and a heating mode.
In one possible implementation manner, when the air conditioner operation mode is a refrigeration mode, the state detection starting condition is that the return air temperature is greater than a first temperature value;
when the air conditioner operation mode is a heating mode, the state detection starting condition is that the return air temperature is smaller than a second temperature value; wherein the first temperature value is less than the second temperature value.
In one possible implementation manner, when the air conditioner operation mode is a refrigeration mode, the air blocking state condition is that a difference between a return air temperature and an air supply temperature is greater than a first temperature difference;
when the air conditioner operation mode is a heating mode, the air blocking state condition is that the difference value of air supply temperature minus return air temperature is larger than a second temperature difference value;
wherein the first temperature difference value is greater than or equal to the second temperature difference value.
In one possible implementation manner, when the air conditioner operation mode is a refrigeration mode, the water blockage state condition is that a difference value of a water outlet temperature minus a water supply temperature is larger than a third temperature difference value;
when the air conditioner operation mode is a heating mode, the water blocking state condition is that the difference value of the water supply temperature minus the water outlet temperature is larger than a fourth temperature difference value;
wherein the third temperature difference value is less than or equal to the fourth temperature difference value.
In one possible implementation manner, the abnormal state cause checking task corresponding to the wind blocking state includes:
detecting whether the opening degree of the return air valve, the opening degree of the air inlet valve and the air supply quantity of the fan meet a first set state.
In one possible implementation manner, the checking task corresponding to the water blocking state includes:
checking whether the filter, the water valve opening and the water flow distribution meet a second set state.
In one possible implementation manner, before the air conditioner operation mode and the return air temperature are obtained, the method further includes:
executing basic item inspection, and sending a fault instruction when a fault exists; otherwise, executing the operation of acquiring the air conditioner operation mode and the return air temperature and the following operations.
In one possible implementation, the base item check includes:
checking whether the fan is stopped, checking whether remote control is successful, checking whether fan control logic is abnormal, checking whether water valve operation logic is abnormal and checking whether filter screen pressure difference is abnormal.
In one possible implementation, the checking whether the fan control logic is abnormal includes:
acquiring an air conditioner operation mode, a temporary return air temperature and a temporary fan frequency, and determining a corresponding first abnormal condition according to the air conditioner operation mode;
judging whether the temporary return air temperature and the temporary fan frequency meet the first abnormal condition or not;
wherein the first exception condition comprises: air conditioner operation mode, set return air temperature and set fan frequency.
In one possible implementation, the checking whether the water valve operation logic is abnormal includes:
acquiring an air conditioner operation mode, a temporary air supply temperature and a temporary cold water valve opening, and determining a corresponding second abnormal condition according to the air conditioner operation mode;
judging whether the temporary air supply temperature and the temporary cold water valve opening meet the second abnormal condition or not;
wherein the second exception condition comprises: an air conditioner operation mode, a set air supply temperature and a set cold water valve opening.
In one possible implementation manner, the operation of obtaining the air conditioner operation mode and the return air temperature and the following operations are performed after the air conditioner is started and operated for a set period of time.
In a second aspect, an embodiment of the present application provides a device for detecting a filth blockage of a water-cooled air conditioner, including:
the acquisition module is used for acquiring the return air temperature, and acquiring the air supply temperature, the water supply temperature and the water outlet temperature when the return air temperature meets the state detection starting condition;
the checking module is used for executing a corresponding checking task of the abnormal state reason when the return air temperature and the supply air temperature meet the air blocking state condition and/or the water supply temperature and the water outlet temperature meet the water blocking state condition;
the generation module is used for generating an inspection result when the reason of the corresponding abnormal state is inspected; otherwise, generating a hardware checking instruction.
In a third aspect, embodiments of the present application provide a terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to the first aspect or any one of the possible implementations of the first aspect, when the computer program is executed.
In a fourth aspect, embodiments of the present application provide a computer readable storage medium storing a computer program which, when executed by a processor, implements the steps of the method as described above in the first aspect or any one of the possible implementations of the first aspect.
The embodiment of the application provides a method, a terminal and a storage medium for detecting dirt blocking of a water-cooled air conditioner. And when the return air temperature and the supply air temperature meet the air blocking state conditions and/or the water supply temperature and the water outlet temperature meet the water blocking state conditions, executing the corresponding checking task of the abnormal state reasons. And generating a checking result when the reason of the corresponding abnormal state is checked, otherwise, generating a hardware checking instruction. The embodiment of the application can judge whether the dirty blockage occurs based on the air conditioner operation parameters, and automatically execute the related abnormal state reason checking task when judging that the dirty blockage exists, so as to realize the automatic checking of the dirty blockage caused reason and improve the judging efficiency.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is an application scenario diagram of a method for detecting filth blockage of a water-cooled air conditioner according to an embodiment of the present application;
FIG. 2 is a flowchart of a method for detecting filth blockage of a water-cooled air conditioner according to an embodiment of the application;
FIG. 3 is a flowchart of a method for detecting filth blockage of a water-cooled air conditioner according to another embodiment of the application;
fig. 4 is a schematic structural diagram of a device for detecting filth blockage of a water-cooled air conditioner according to an embodiment of the present application;
fig. 5 is a schematic diagram of a terminal according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.
The application aims to judge the running quality of a system by utilizing a sensor and an instrument which are in common use in a heating and ventilation theory and projects, and to diagnose the air blocking and water blocking by utilizing a program when the condition of insufficient cooling/heating occurs at the tail end of an air conditioner. The inspection labor cost is effectively saved, the working efficiency of professional operation and maintenance engineers is improved, meanwhile, a reference index can be provided for the maintenance of the tail end of the air conditioner, the on-site operation quality is improved, and the operation and maintenance cost is reduced.
The air conditioner terminal types corresponding to the scheme provided by the embodiment of the application comprise all common types of wind-water heat exchange terminals such as AHU, PAU, FCU and the like. The embodiment of the application is developed by taking the detection and automatic judgment of the air blocking and water blocking of the AHU at the tail end of the Chiller water system as an example.
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following description will be made by way of specific embodiments with reference to the accompanying drawings.
Fig. 1 is an application scenario diagram of a method for detecting filth blockage of a water-cooled air conditioner according to an embodiment of the present application. An end AHU for a Chiller water system is shown in FIG. 1. The positions of the blower and the heat exchanger are shown, and the detection points of the air supply temperature, the return air temperature, the water outlet temperature and the water supply temperature are shown.
Fig. 2 is a flowchart of a method for detecting a filth blockage of a water-cooled air conditioner according to an embodiment of the present application, and as shown in fig. 2, the method includes the following steps:
s201, acquiring a return air temperature, and acquiring an air supply temperature, a water supply temperature and a water outlet temperature when the return air temperature meets a state detection starting condition.
S202, when the return air temperature and the supply air temperature meet the air blocking state conditions, and/or the water supply temperature and the water outlet temperature meet the water blocking state conditions, executing corresponding abnormal state reason checking tasks. When the cause of the corresponding abnormal state is detected, step S203 is executed, otherwise step S204 is executed.
When the return air temperature and the supply air temperature meet the air blocking state conditions, the corresponding checking task of the abnormal state cause is the checking task of the air blocking abnormal state cause; when the water supply temperature and the water outlet temperature meet the water blockage state conditions, the corresponding inspection task of the abnormal state cause is the inspection task of the water blockage abnormal state cause; when the return air temperature and the supply air temperature meet the air blocking state conditions and the water supply temperature and the outlet water temperature meet the water blocking state conditions, the corresponding inspection task of the abnormal state cause is the inspection task of the abnormal state cause of the water blocking and the inspection task of the abnormal state cause of the air blocking.
In one possible implementation, when the return air temperature and the supply air temperature meet the air blocking condition or the supply water temperature and the outlet water temperature meet the water blocking condition, the corresponding checking task of the abnormal state reason is executed.
In one possible implementation, the task of checking for the cause of the abnormal condition is performed when the return air temperature and the supply air temperature satisfy the air blocking condition, and the supply water temperature and the outlet water temperature satisfy the water blocking condition.
S203, generating a checking result.
In one possible implementation, the inspection results include an abnormal state cause, or an abnormal state cause and corresponding operating parameters, to facilitate more accurate specification of the corresponding repair plan by the user and repair personnel.
S204, generating a hardware checking instruction.
In one possible implementation, after the inspection result or the hardware inspection instruction is generated, a prompt is made through an air conditioning system display panel or a designated terminal. Optionally, the prompt is performed through one or more of an abnormal state code, abnormal state reason text prompt information and abnormal state reason voice prompt information.
In one possible implementation, after the inspection result or the hardware inspection instruction is generated, the inspection result or the hardware inspection instruction is sent to a mobile terminal of a user or a maintainer through a communication module so as to prompt timely maintenance and know the specific abnormality reason.
In the embodiment of the application, the air supply temperature, the water supply temperature and the water outlet temperature are obtained by obtaining the return air temperature when the return air temperature meets the state detection starting condition, so that the air conditioning filth blockage condition is checked by integrating various actual measurement parameters. And when the return air temperature and the supply air temperature meet the air blocking state conditions and/or the water supply temperature and the water outlet temperature meet the water blocking state conditions, executing the corresponding checking task of the abnormal state reasons. And generating a checking result when the reason of the corresponding abnormal state is checked, otherwise, generating a hardware checking instruction. The embodiment of the application can judge whether the dirty blockage occurs based on the air conditioner operation parameters, and automatically execute the related abnormal state reason checking task when judging that the dirty blockage exists, so as to realize the automatic checking of the dirty blockage caused reason and improve the judging efficiency.
The method provided by the foregoing embodiment is mainly based on detecting the operation parameters of the air conditioner to automatically check the cause of the dirty blockage, and in the actual application process, there is a situation that the detection of the operation parameters of the air conditioner is inaccurate due to hardware faults, and the hardware faults need to be manually checked.
In one possible implementation, the hardware check item instruction includes: abnormal temperature inspection, installation setting inspection and abnormal thermal load inspection of the water outlet;
wherein the installation setting check includes: short circuit checking of air supply and return air, checking of air supply/return air inlet in service area and error checking of binding point.
In one possible implementation, before the return air temperature is obtained, the method further comprises:
acquiring an air conditioner operation mode, and determining a state detection starting condition, an air blocking state condition and a water blocking state condition according to the air conditioner operation mode; the air conditioner operation modes comprise a refrigerating mode and a heating mode. Corresponding state detection starting conditions, wind blocking state conditions and water blocking state conditions are determined based on the air conditioner operation mode, and pertinence and accuracy of a detection scheme can be improved.
In one possible implementation, when the air conditioner operation mode is a cooling mode, the state detection starting condition is that the return air temperature is greater than a first temperature value;
when the air conditioner operation mode is a heating mode, the state detection starting condition is that the return air temperature is smaller than a second temperature value; wherein the first temperature value is less than the second temperature value. In the cooling mode, the indoor temperature needs to be reduced, so that when the return air temperature is higher than the first temperature value, the problem of insufficient cooling capacity is judged, and on the basis, the insufficient cooling capacity mainly causes uneven cooling due to air blockage or water blockage.
Fig. 3 is a flowchart of a method for detecting filth blockage of a water-cooled air conditioner according to another embodiment of the present application, and as shown in fig. 3, the method includes the following steps:
s301, acquiring an air conditioner operation mode, and determining a state detection starting condition, an air blocking state condition and a water blocking state condition according to the air conditioner operation mode; the air conditioner operation modes comprise a refrigerating mode and a heating mode.
S302, acquiring the return air temperature.
S303, judging whether the return air temperature meets the refrigeration mode and is greater than T1, or whether the heating mode and the return air temperature are less than T2. Wherein T1 is less than T2. Namely judging whether the return air temperature meets the state detection starting condition. Step S304 is performed when satisfied, otherwise step S302 is performed.
S304, acquiring air supply temperature, water supply temperature and water outlet temperature.
S305, when the return air temperature and the supply air temperature meet the air blocking state condition and/or the water supply temperature and the water outlet temperature meet the water blocking state condition, executing the corresponding abnormal state reason checking task.
S306, determining a generation instruction according to the inspection result of the abnormal state reason. When the cause of the corresponding abnormal state is detected, step S307 is executed, otherwise step S308 is executed.
S307, generating a checking result.
In one possible implementation, the inspection results include an abnormal state cause, or an abnormal state cause and corresponding operating parameters, to facilitate more accurate specification of the corresponding repair plan by the user and repair personnel.
S308, generating a hardware checking instruction.
In one possible implementation, after the inspection result or the hardware inspection instruction is generated, a prompt is made through an air conditioning system display panel or a designated terminal. Optionally, the prompt is performed through one or more of an abnormal state code, abnormal state reason text prompt information and abnormal state reason voice prompt information.
In one possible implementation, after the inspection result or the hardware inspection instruction is generated, the inspection result or the hardware inspection instruction is sent to a mobile terminal of a user or a maintainer through a communication module so as to prompt timely maintenance and know the specific abnormality reason.
On the basis of the foregoing embodiment, in one possible implementation manner, when the air conditioner operation mode is a refrigeration mode, the air blocking condition is that a difference between the return air temperature and the supply air temperature is greater than a first temperature difference;
when the air conditioner operation mode is a heating mode, the air blocking state condition is that the difference value of the air supply temperature minus the return air temperature is larger than the second temperature difference value;
wherein the first temperature difference is greater than or equal to the second temperature difference.
In one possible implementation, when the air conditioner operation mode is a cooling mode, the water blocking state condition is that a difference between the water outlet temperature and the water supply temperature is greater than a third temperature difference;
when the air conditioner operation mode is a heating mode, the water blocking state condition is that the difference value of the water supply temperature minus the water outlet temperature is larger than the fourth temperature difference value;
wherein the third temperature difference value is less than or equal to the fourth temperature difference value.
In one embodiment, the first temperature is 27℃and the second temperature is 34 ℃. The first temperature difference is 11 ℃, the second temperature difference is 14 ℃, the third temperature difference is 6 ℃, and the fourth temperature difference is 7 ℃.
In the refrigeration mode, the state detection is not started when the return air temperature is less than or equal to 27 ℃, and the state detection is started when the return air temperature is greater than 27 ℃. The detected water supply temperature and water outlet temperature are respectively 12 ℃ and 7 ℃, and the air supply temperature and the air return temperature are respectively 16 ℃ and 28 ℃. The difference between the return air temperature and the supply air temperature is 12 ℃, and the difference is larger than the first temperature difference, so that the air blockage condition is diagnosed. The difference of the water supply temperature minus the water outlet temperature is less than the third temperature difference and is 5 ℃ and the water blockage is not detected.
Under the heating mode, the state detection is not started when the return air temperature is more than or equal to 34 ℃, and the state detection is started when the return air temperature is less than 34 ℃. The detected water supply temperature and water outlet temperature are respectively 50 ℃ and 42 ℃, and the air supply temperature and the air return temperature are respectively 35 ℃ and 22 ℃. And the difference of the air supply temperature minus the return air temperature is 13 ℃ and is smaller than the second temperature difference, and the condition of no air blockage is diagnosed. The difference of the water supply temperature minus the water outlet temperature is 8 ℃ and is larger than the fourth temperature difference, and the water blockage condition is diagnosed.
In one possible implementation manner, the abnormal state cause checking task corresponding to the wind blocking state includes:
detecting whether the opening degree of the return air valve, the opening degree of the air inlet valve and the air supply quantity of the fan meet a first set state.
Wherein, the air blocking can be caused by any one of the opening of the return air valve, the opening of the air inlet valve and the air quantity of the air blower being smaller than the corresponding threshold value.
In one possible implementation, the checking task corresponding to the water blocking state includes:
checking whether the filter, the water valve opening and the water flow distribution meet a second set state.
Wherein, the filter is dirty blocked, or the water valve aperture and the water flow are smaller than the corresponding threshold value, and the water blockage can be caused.
In one possible implementation, before acquiring the air conditioner operation mode and the return air temperature, the method further includes:
executing basic item inspection, and sending a fault instruction when a fault exists; otherwise, the operation of acquiring the air conditioner operation mode and the return air temperature and the following operations are performed.
In one possible implementation, the base item check includes:
checking whether the fan is stopped, checking whether remote control is successful, checking whether fan control logic is abnormal, checking whether water valve operation logic is abnormal and checking whether filter screen pressure difference is abnormal.
Wherein, in a specific application, checking whether the blower is shut down includes determining whether a shut down alert signal sent by the AHU blower controller is received. Checking whether the remote control is successful includes detecting whether the fan frequency of the air conditioner fan is less than 5Hz in the running state.
In one possible implementation, checking whether fan control logic is abnormal includes:
acquiring an air conditioner operation mode, a temporary return air temperature and a temporary fan frequency, and determining a corresponding first abnormal condition according to the air conditioner operation mode;
judging whether the temporary return air temperature and the temporary fan frequency meet a first abnormal condition or not;
wherein the first exception condition comprises: air conditioner operation mode, set return air temperature and set fan frequency.
In a specific embodiment, when the air conditioner operation mode is a refrigeration mode, if the return air temperature is less than the first set return air temperature, the fan frequency is greater than the first set fan frequency (35 Hz); if the return air temperature is more than the second set return air temperature and the fan frequency is less than the second set fan frequency (45 Hz), judging that the fan control logic is abnormal. The first return air temperature is smaller than the first return air temperature, and the first set fan frequency is smaller than the second set fan frequency.
In one possible implementation, checking whether the valve operating logic is abnormal includes:
acquiring an air conditioner operation mode, a temporary air supply temperature and a temporary cold water valve opening, and determining a corresponding second abnormal condition according to the air conditioner operation mode;
judging whether the temporary air supply temperature and the temporary cold water valve opening meet a second abnormal condition or not;
wherein the second exception condition comprises: an air conditioner operation mode, a set air supply temperature and a set cold water valve opening.
In one embodiment, when the air conditioner operation mode is a cooling mode, if the air supply temperature is less than the first set air supply temperature, the cold water valve opening is greater than the first set cold water valve opening (20); if the air supply temperature is larger than the second set air supply temperature and the opening degree of the cold water valve is smaller than the opening degree of the second set cold water valve (90), judging that the fan control logic is abnormal. The first air supply temperature is smaller than the first air supply temperature, and the opening of the first set cold water valve is smaller than the opening of the second set cold water valve.
In one possible implementation, the operation of obtaining the air conditioner operation mode and the return air temperature and thereafter is performed after the air conditioner is turned on and operated for a set period of time. The starting-up and running set time length of the air conditioner is used as the starting adjustment of the control method provided by the embodiment of the application, so that the relevant detection is executed under the running stable state of the air conditioner, and the false alarm is avoided.
It should be understood that the sequence number of each step in the foregoing embodiment does not mean that the execution sequence of each process should be determined by the function and the internal logic, and should not limit the implementation process of the embodiment of the present application.
The following are device embodiments of the application, for details not described in detail therein, reference may be made to the corresponding method embodiments described above.
Fig. 4 is a schematic structural diagram of a device for detecting filth blockage of a water-cooled air conditioner according to an embodiment of the present application, and for convenience of explanation, only the relevant parts of the embodiment of the present application are shown, which is described in detail below:
as shown in fig. 4, the device for detecting the filth blockage of the water-cooled air conditioner comprises: an acquisition module 401, a checking module 402 and a generation module 403.
The obtaining module 401 is configured to obtain a return air temperature, and obtain an air supply temperature, a water supply temperature, and a water outlet temperature when the return air temperature meets a status detection start condition.
The checking module 402 is configured to perform a corresponding checking task for an abnormal condition reason when the return air temperature and the supply air temperature satisfy the air blocking condition, and/or when the supply water temperature and the outlet water temperature satisfy the water blocking condition.
A generating module 403, configured to generate an inspection result when the cause of the corresponding abnormal state is inspected; otherwise, generating a hardware checking instruction.
In this embodiment, by acquiring the return air temperature, when the return air temperature satisfies the state detection start condition, the supply air temperature, the supply water temperature and the outlet water temperature are acquired, so as to integrate various actual measurement parameters to check the air-conditioning filth blockage condition. And when the return air temperature and the supply air temperature meet the air blocking state conditions and/or the water supply temperature and the water outlet temperature meet the water blocking state conditions, executing the corresponding checking task of the abnormal state reasons. And generating a checking result when the reason of the corresponding abnormal state is checked, otherwise, generating a hardware checking instruction. The embodiment of the application can judge whether the dirty blockage occurs based on the air conditioner operation parameters, and automatically execute the related abnormal state reason checking task when judging that the dirty blockage exists, so as to realize the automatic checking of the dirty blockage caused reason and improve the judging efficiency.
In one possible implementation, the hardware check item instruction includes: abnormal temperature inspection, installation setting inspection and abnormal thermal load inspection of the water outlet;
wherein the installation setting check includes: short circuit checking of air supply and return air, checking of air supply/return air inlet in service area and error checking of binding point.
In a possible implementation manner, the obtaining module 401 is further configured to obtain an air conditioner operation mode before obtaining the return air temperature, and determine a state detection start condition, an air blocking state condition, and a water blocking state condition according to the air conditioner operation mode; the air conditioner operation modes comprise a refrigerating mode and a heating mode.
In one possible implementation, when the air conditioner operation mode is a cooling mode, the state detection starting condition is that the return air temperature is greater than a first temperature value;
when the air conditioner operation mode is a heating mode, the state detection starting condition is that the return air temperature is smaller than a second temperature value; wherein the first temperature value is less than the second temperature value.
In one possible implementation, when the air conditioner operation mode is a refrigeration mode, the air blocking state condition is that a difference between the return air temperature and the supply air temperature is greater than a first temperature difference;
when the air conditioner operation mode is a heating mode, the air blocking state condition is that the difference value of the air supply temperature minus the return air temperature is larger than the second temperature difference value;
wherein the first temperature difference is greater than or equal to the second temperature difference.
In one possible implementation, when the air conditioner operation mode is a cooling mode, the water blocking state condition is that a difference between the water outlet temperature and the water supply temperature is greater than a third temperature difference;
when the air conditioner operation mode is a heating mode, the water blocking state condition is that the difference value of the water supply temperature minus the water outlet temperature is larger than the fourth temperature difference value;
wherein the third temperature difference value is less than or equal to the fourth temperature difference value.
In one possible implementation manner, the abnormal state cause checking task corresponding to the wind blocking state includes:
detecting whether the opening degree of the return air valve, the opening degree of the air inlet valve and the air supply quantity of the fan meet a first set state.
In one possible implementation, the checking task corresponding to the water blocking state includes:
checking whether the filter, the water valve opening and the water flow distribution meet a second set state.
In one possible implementation manner, the device for detecting the filth blockage of the water-cooled air conditioner further comprises a basic checking module, which is used for executing basic item checking before acquiring the running mode and the return air temperature of the air conditioner, and sending a fault instruction when a fault exists; otherwise, the operations of acquiring the air conditioner operation mode and the return air temperature and thereafter are performed by the acquisition module 401.
In one possible implementation, the base item check includes:
checking whether the fan is stopped, checking whether remote control is successful, checking whether fan control logic is abnormal, checking whether water valve operation logic is abnormal and checking whether filter screen pressure difference is abnormal.
In one possible implementation, checking whether fan control logic is abnormal includes:
acquiring an air conditioner operation mode, a temporary return air temperature and a temporary fan frequency, and determining a corresponding first abnormal condition according to the air conditioner operation mode;
judging whether the temporary return air temperature and the temporary fan frequency meet a first abnormal condition or not;
wherein the first exception condition comprises: air conditioner operation mode, set return air temperature and set fan frequency.
In one possible implementation, checking whether the valve operating logic is abnormal includes:
acquiring an air conditioner operation mode, a temporary air supply temperature and a temporary cold water valve opening, and determining a corresponding second abnormal condition according to the air conditioner operation mode;
judging whether the temporary air supply temperature and the temporary cold water valve opening meet a second abnormal condition or not;
wherein the second exception condition comprises: an air conditioner operation mode, a set air supply temperature and a set cold water valve opening.
In one possible implementation, after the air conditioner is turned on and operated for a set period of time, the acquisition module 401 performs operations of acquiring the air conditioner operation mode and the return air temperature and thereafter.
Fig. 5 is a schematic diagram of a terminal according to an embodiment of the present application. As shown in fig. 5, the terminal 5 of this embodiment includes: a processor 50, a memory 51 and a computer program 52 stored in said memory 51 and executable on said processor 50. The steps of the method embodiments for detecting the filth blockage of the water-cooled air conditioner are implemented by the processor 50 when the computer program 52 is executed, or the functions of the modules/units in the device embodiments are implemented by the processor 50 when the computer program 52 is executed.
By way of example, the computer program 52 may be partitioned into one or more modules/units that are stored in the memory 51 and executed by the processor 50 to complete the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing the specified functions describing the execution of the computer program 52 in the terminal 5. For example, the computer program 52 may be partitioned into the functions of the modules/units in the various device embodiments described above.
The terminal 5 may be a computing device such as a desktop computer, a notebook computer, a palm computer, a cloud server, etc. The terminal 5 may include, but is not limited to, a processor 50, a memory 51. It will be appreciated by those skilled in the art that fig. 5 is merely an example of the terminal 5 and is not limiting of the terminal 5, and may include more or fewer components than shown, or may combine some components, or different components, e.g., the terminal may further include input and output devices, network access devices, buses, etc.
The processor 50 may be a central processing unit (Central Processing Unit, CPU), other general purpose processors, digital signal processors (Digital Signal Processor, DSP), application specific integrated circuits (Application Specific Integrated Circuit, ASIC), field-programmable gate arrays (Field-Programmable Gate Array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 51 may be an internal storage unit of the terminal 5, such as a hard disk or a memory of the terminal 5. The memory 51 may be an external storage device of the terminal 5, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card) or the like, which are provided on the terminal 5. Further, the memory 51 may also include both an internal storage unit and an external storage device of the terminal 5. The memory 51 is used for storing the computer program as well as other programs and data required by the terminal. The memory 51 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-described division of the functional units and modules is illustrated, and in practical application, the above-described functional distribution may be performed by different functional units and modules according to needs, i.e. the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-described functions. The functional units and modules in the embodiment may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit, where the integrated units may be implemented in a form of hardware or a form of a software functional unit. In addition, the specific names of the functional units and modules are only for distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working process of the units and modules in the above system may refer to the corresponding process in the foregoing method embodiment, which is not described herein again.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and in part, not described or illustrated in any particular embodiment, reference is made to the related descriptions of other embodiments.
Those of ordinary skill in the art will 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 depends 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 present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal and method may be implemented in other manners. For example, the apparatus/terminal embodiments described above are merely illustrative, e.g., the division of the modules or units is merely a logical function division, and there may be additional divisions when actually implemented, e.g., multiple units or components may be combined or integrated into another system, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection via interfaces, devices or units, which may be in electrical, mechanical or other forms.
The units described as separate units may or may not be physically separate, and units shown 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 may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated modules/units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the present application may implement all or part of the flow of the method of the foregoing embodiment, or may be implemented by instructing related hardware by a computer program, where the computer program may be stored in a computer readable storage medium, and the computer program may implement the steps of each of the foregoing method embodiments for detecting filth blockage of a water-cooled air conditioner when executed by a processor. Wherein the computer program comprises computer program code which may be in source code form, object code form, executable file or some intermediate form etc. The computer readable medium may include: any entity or device capable of carrying the computer program code, a recording medium, a U disk, a removable hard disk, a magnetic disk, an optical disk, a computer Memory, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), an electrical carrier signal, a telecommunications signal, a software distribution medium, and so forth.
The above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included in the scope of the present application.
Claims (9)
1. The method for detecting the filth blockage of the water-cooled air conditioner is characterized by comprising the following steps of:
acquiring an air conditioner operation mode, and determining a state detection starting condition, an air blocking state condition and a water blocking state condition according to the air conditioner operation mode; the air conditioner operation mode comprises a refrigeration mode and a heating mode;
acquiring a return air temperature, and acquiring an air supply temperature, a water supply temperature and a water outlet temperature when the return air temperature meets a state detection starting condition;
when the return air temperature and the supply air temperature meet the air blocking state conditions, and/or the water supply temperature and the outlet water temperature meet the water blocking state conditions, executing corresponding checking tasks of abnormal state reasons;
when the air conditioner operation mode is a refrigeration mode, the air blocking state condition is that the difference value of the return air temperature minus the supply air temperature is larger than the first temperature difference value; when the air conditioner operation mode is a heating mode, the air blocking state condition is that the difference value of the air supply temperature minus the return air temperature is larger than the second temperature difference value; wherein the first temperature difference value is greater than or equal to the second temperature difference value;
when the air conditioner operation mode is a refrigeration mode, the water blockage state condition is that the difference value of the water outlet temperature minus the water supply temperature is larger than the third temperature difference value; when the air conditioner operation mode is a heating mode, the water blocking state condition is that the difference value of the water supply temperature minus the water outlet temperature is larger than the fourth temperature difference value; wherein the third temperature difference value is less than or equal to the fourth temperature difference value;
generating an inspection result when the cause of the corresponding abnormal state is inspected; otherwise, generating a hardware checking instruction.
2. The method of claim 1, wherein when the air conditioning mode of operation is a cooling mode, the status detection initiation condition is that a return air temperature is greater than a first temperature value; when the air conditioner operation mode is a heating mode, the state detection starting condition is that the return air temperature is smaller than a second temperature value; wherein the first temperature value is less than the second temperature value.
3. The method of claim 1, wherein the hardware check instruction comprises: abnormal temperature inspection, installation setting inspection and abnormal thermal load inspection of the water outlet;
wherein the installation setting check includes: short circuit checking of air supply and return air, checking of air supply/return air inlet in service area and error checking of binding point.
4. A method according to any one of claims 1 to 3, further comprising, prior to said acquiring the air conditioning operating mode and return air temperature:
executing basic item inspection, and sending a fault instruction when a fault exists; otherwise, executing the operation of acquiring the air conditioner operation mode and the return air temperature and the following operations.
5. The method of claim 4, wherein the base item check comprises:
checking whether the fan is stopped, checking whether remote control is successful, checking whether fan control logic is abnormal, checking whether water valve operation logic is abnormal and checking whether filter screen pressure difference is abnormal.
6. The method of claim 5, wherein the checking whether fan control logic is abnormal comprises:
acquiring an air conditioner operation mode, a temporary return air temperature and a temporary fan frequency, and determining a corresponding first abnormal condition according to the air conditioner operation mode;
judging whether the temporary return air temperature and the temporary fan frequency meet the first abnormal condition or not;
wherein the first exception condition comprises: air conditioner operation mode, set return air temperature and set fan frequency.
7. The method of claim 5, wherein the checking whether the water valve operation logic is abnormal comprises:
acquiring an air conditioner operation mode, a temporary air supply temperature and a temporary cold water valve opening, and determining a corresponding second abnormal condition according to the air conditioner operation mode;
judging whether the temporary air supply temperature and the temporary cold water valve opening meet the second abnormal condition or not;
wherein the second exception condition comprises: an air conditioner operation mode, a set air supply temperature and a set cold water valve opening.
8. A terminal comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the method according to any of the preceding claims 1 to 7 when the computer program is executed.
9. A computer readable storage medium storing a computer program, characterized in that the computer program when executed by a processor implements the steps of the method according to any of the preceding claims 1 to 7.
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| CN112944582A (en) * | 2021-03-01 | 2021-06-11 | 青岛海尔（胶州）空调器有限公司 | Method and device for prompting self-cleaning of air conditioner and air conditioner |
| CN114492867A (en) * | 2022-01-21 | 2022-05-13 | 三一重机有限公司 | Air conditioner cleaning control method and system and operation equipment |
| CN114427735A (en) * | 2022-02-14 | 2022-05-03 | 珠海格力电器股份有限公司 | Air conditioner control method, control device and nonvolatile storage medium |
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