CN110925949B - Control method, device and equipment of water-cooling type air conditioning unit and storage medium - Google Patents
Control method, device and equipment of water-cooling type air conditioning unit and storage medium Download PDFInfo
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- CN110925949B CN110925949B CN201911098714.XA CN201911098714A CN110925949B CN 110925949 B CN110925949 B CN 110925949B CN 201911098714 A CN201911098714 A CN 201911098714A CN 110925949 B CN110925949 B CN 110925949B
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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
- F24F11/80—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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The application relates to a control method, a device, equipment and a storage medium of a water-cooling type air conditioning unit, wherein the method comprises the following steps: acquiring the accumulated occurrence frequency of a plurality of preset faults in a preset time period; and when the accumulated occurrence frequency is greater than the preset frequency, acquiring the indoor environment temperature and the outdoor cooling water inlet temperature, judging whether the water-cooled air-conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature, acquiring the running current of each compressor in the water-cooled air-conditioning unit when the obtained second judgment result is yes, and starting a water flow switch protection mechanism when the running current of at least one compressor is greater than the first preset current. When the accumulated occurrence frequency is greater than the preset frequency, the water-cooled air conditioning unit is in the nominal working condition and the running current is greater than the first preset current, the water flow is judged to be caused by low water flow, and the water flow switch protection mechanism is started to prevent the water-cooled air conditioning unit from being still started when the water flow is low, so that the unit is prevented from being damaged.
Description
Technical Field
The application relates to the technical field of air conditioner control, in particular to a control method, a control device, control equipment and a storage medium for a water-cooling type air conditioning unit.
Background
In the correlation technique, in order to avoid the condition that the heat exchanger load that leads to is on the low side when water-cooling type air conditioning unit's heat transfer side cooling water flow, often can be at the end of intaking of circulation system or go out water end installation water flow switch, current rivers are judged to the atress of water flow switch through measuring the target piece, when this flow reaches the predetermined value, water flow switch is closed, air conditioning unit can normally open, when the flow does not reach the predetermined value, water flow switch disconnection, air conditioning unit can't open, in order to avoid air conditioning unit because of the rivers undersize impaired.
However, in the operation process of the water-cooling type air conditioning unit, impurities in cooling water can be increased along with the increase of the operation time, so that the flow judged by the stress of the target plate is far larger than the actual flow, at the moment, the air conditioning unit can still be started when the actual flow is low, the air conditioning unit can continue to operate under the condition that the water flow is low, and an air conditioning system can be damaged.
Disclosure of Invention
In order to overcome the problems in the related art at least to a certain extent, the application provides a control method, a control device, control equipment and a storage medium of a water-cooling type air conditioning unit.
According to a first aspect of the present application, there is provided a control method of a water-cooling type air conditioning unit, including:
acquiring the accumulated occurrence frequency of a plurality of preset faults in a preset time period;
judging whether the accumulated occurrence times are greater than preset times or not to obtain a first judgment result;
when the first judgment result is yes, acquiring the indoor environment temperature and the outdoor cooling water inlet temperature, and judging whether the water-cooled air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result;
and when the second judgment result is yes, acquiring the running current of each compressor in the water-cooling type air conditioning unit, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current.
Optionally, the method further includes:
when the running current of at least one compressor is smaller than a second preset current, acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is larger than the first preset temperature or not to obtain a third judgment result;
and if so, shutting down a sub-unit system in the water-cooled air conditioning unit according to a preset rule.
Optionally, the condition for determining the nominal operating condition includes:
the indoor environment temperature is lower than the second preset temperature and the water inlet temperature of the outdoor cooling water is lower than the third preset temperature.
Optionally, the method further includes:
and when the running current of at least one compressor is greater than a first preset current, giving an alarm to remind a user of cleaning the cooling water pipeline.
According to a second aspect of the present application, there is provided a control apparatus for a water-cooling type air conditioning unit, comprising:
the acquisition module is used for acquiring the accumulated occurrence times of a plurality of preset faults in a preset time period;
the first judgment module is used for judging whether the accumulated occurrence times are greater than the preset times or not to obtain a first judgment result;
the second judging module is used for acquiring the indoor environment temperature and the outdoor cooling water inlet temperature and judging whether the water-cooling type air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judging result when the first judging result is yes;
and the starting module is used for acquiring the running current of each compressor in the water-cooled air conditioning unit when the second judgment result is yes, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current.
Optionally, the apparatus further comprises:
the third judgment module is used for acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is greater than the first preset temperature or not when the running current of at least one compressor is less than a second preset current so as to obtain a third judgment result;
and the shutdown module is used for shutting down a sub-unit system in the water-cooled air conditioning unit according to a preset rule when the third judgment result is yes.
Optionally, the condition for determining the nominal operating condition includes:
the indoor environment temperature is lower than the second preset temperature and the water inlet temperature of the outdoor cooling water is lower than the third preset temperature.
Optionally, the apparatus further comprises:
and the alarm module is used for giving an alarm to remind a user of cleaning the cooling water pipeline when the running current of at least one compressor is greater than a first preset current.
According to a third aspect of the present application, there is provided a control apparatus of a water cooling type air conditioning unit, comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the control method of the water cooling type air conditioning unit in the first aspect of the application;
the processor is used for calling and executing the computer program in the memory.
According to a fourth aspect of the present application, there is provided a storage medium storing a computer program which, when executed by a processor, implements the steps of the control method for a water-cooling type air conditioning unit according to the first aspect of the present application.
The technical scheme provided by the application can comprise the following beneficial effects: firstly, acquiring the accumulated occurrence frequency of a plurality of preset faults in a preset time period; then judging whether the accumulated occurrence times are larger than preset times or not to obtain a first judgment result; when the first judgment result is yes, acquiring the indoor environment temperature and the outdoor cooling water inlet temperature, and judging whether the water-cooled air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result; and when the second judgment result is yes, acquiring the running current of each compressor in the water-cooling type air conditioning unit, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current. When the accumulated occurrence times are larger than the preset times, the water-cooled air conditioning unit is in the nominal working condition and the running current is larger than the first preset current, the compression ratio of the compressor can be judged to be increased, the compression ratio of the compressor is generally increased due to the fact that the condensation temperature on one side of the condenser is increased, the condensation temperature is increased due to the fact that the water flow is low, therefore, when the accumulated occurrence times are larger than the preset times, the water-cooled air conditioning unit is in the nominal working condition and the running current is larger than the first preset current, the water flow can be judged to be low at the moment, the water-cooled air conditioning unit can be prevented from being still started when the water flow is low by starting the water flow switch protection mechanism.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic flowchart of a control method for a water-cooling type air conditioning unit according to a first embodiment of the present application.
Fig. 2 is a schematic structural diagram of a control device of a water-cooling type air conditioning unit according to a second embodiment of the present application.
Fig. 3 is a schematic structural diagram of a control device of a water-cooling type air conditioning unit according to a third embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
In the correlation technique, in order to avoid the condition that the heat exchanger load that leads to is on the low side when water-cooling type air conditioning unit's heat transfer side cooling water flow, often can be at the end of intaking of circulation system or go out water end installation water flow switch, current rivers are judged to the atress of water flow switch through measuring the target piece, when this flow reaches the predetermined value, water flow switch is closed, air conditioning unit can normally open, when the flow does not reach the predetermined value, water flow switch disconnection, air conditioning unit can't open, in order to avoid air conditioning unit because of the rivers undersize impaired.
However, in the operation process of the water-cooling type air conditioning unit, impurities in cooling water can be increased along with the increase of the operation time, so that the flow judged by the stress of the target plate is far larger than the actual flow, at the moment, the air conditioning unit can still be started when the actual flow is low, the air conditioning unit can continue to operate under the condition that the water flow is low, and an air conditioning system can be damaged.
In order to solve the above technical problems, the present application provides a method, an apparatus, a device and a storage medium for controlling a water-cooling type air conditioning unit, which are described below by way of examples.
Example one
Referring to fig. 1, fig. 1 is a schematic flow chart illustrating a method for controlling a water-cooling type air conditioning unit according to an embodiment of the present disclosure.
As shown in fig. 1, the method for controlling a water-cooling type air conditioning unit provided in this embodiment may include:
s101, acquiring the accumulated occurrence frequency of a plurality of preset faults in a preset time period;
step S102, judging whether the accumulated occurrence frequency is greater than a preset frequency to obtain a first judgment result;
step S103, when the first judgment result is yes, acquiring an indoor environment temperature and an outdoor cooling water inlet temperature, and judging whether the water-cooled air conditioning unit is in a nominal working condition according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result;
and S104, when the second judgment result is yes, obtaining the running current of each compressor in the water-cooling type air conditioning unit, and when the running current of at least one compressor is larger than a first preset current, starting a water flow switch protection mechanism.
In the embodiment, the accumulated occurrence times of a plurality of preset faults in a preset time period are firstly obtained; then judging whether the accumulated occurrence times are larger than preset times or not to obtain a first judgment result; when the first judgment result is yes, acquiring the indoor environment temperature and the outdoor cooling water inlet temperature, and judging whether the water-cooled air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result; and when the second judgment result is yes, acquiring the running current of each compressor in the water-cooling type air conditioning unit, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current. When the accumulated occurrence times are larger than the preset times, the water-cooled air conditioning unit is in the nominal working condition and the running current is larger than the first preset current, the compression ratio of the compressor can be judged to be increased, the compression ratio of the compressor is generally increased due to the fact that the condensation temperature on one side of the condenser is increased, the condensation temperature is increased due to the fact that the water flow is low, therefore, when the accumulated occurrence times are larger than the preset times, the water-cooled air conditioning unit is in the nominal working condition and the running current is larger than the first preset current, the water flow can be judged to be low at the moment, the water-cooled air conditioning unit can be prevented from being still started when the water flow is low by starting the water flow switch protection mechanism.
Specifically, in step S101, in order to improve the accuracy of determining that the water flow is smaller in the technical solution provided in this embodiment, the preset faults may be limited to three types, namely, water flow switch protection, overload protection, and high-voltage protection, and the cumulative occurrence frequency is the sum of the occurrence frequency of the water flow switch protection, the occurrence frequency of the overload protection, and the occurrence frequency of the high-voltage protection.
It should be noted that, when the actual water flow is too small but the water flow switch cannot be detected, the overload protection and/or the high-voltage protection may occur when the unit continues to operate, the accumulated number of the above 3 faults in the preset time period is abnormally high, and when the accumulated number exceeds the preset number, the water flow may be caused by too small, and then the following determination of step S103 may be performed.
In step S103, if it is determined that the indoor ambient temperature is greater than the second preset temperature and the outdoor cooling water inlet temperature is greater than the third preset temperature, it indicates that the water-cooled air conditioning unit is in the maximum refrigeration condition, which is protection caused by the maximum refrigeration condition, and it may be determined that the probability related to water flow is low; if the indoor environment temperature is lower than the second preset temperature and the outdoor cooling water inlet temperature is lower than the third preset temperature, the water-cooled air-conditioning unit is in the nominal working condition at the moment, and the water-cooled air-conditioning unit is in the nominal operation range of the product (for example, the indoor environment temperature is between 16 ℃ and 35 ℃, and the outdoor cooling water inlet temperature is between 10 ℃ and 35 ℃). Of course, the condition for determining whether the water-cooling type air conditioning unit is in the nominal working condition may be that the indoor environment temperature is in the first preset temperature range and the outdoor cooling water inlet temperature is in the second preset temperature range.
Further, in step S104, the operation current of each compressor in the water-cooling air conditioning unit may be obtained by detecting in a manner of arranging a current sensor, a hall sensor, and the like on the ac contactor of the compressor, and the first preset current may be a maximum current calibrated by the compressor or a product of a protection value of an overcurrent protection board configured in the water-cooling air conditioning unit and a preset coefficient, where the preset coefficient may be 0.9.
It should be noted that, as shown in fig. 1, the method of this embodiment may further include:
and step S105, when the running current of at least one compressor is larger than a first preset current, giving an alarm to remind a user of cleaning the cooling water pipeline.
In addition, as shown in fig. 1, in order to ensure that the unit load operates normally, the control method for the water-cooling type air conditioning unit provided in this embodiment may further include:
s106, when the running current of at least one compressor is smaller than a second preset current, acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is larger than a first preset temperature or not to obtain a third judgment result;
and S107, if the third judgment result is yes, shutting down a sub-unit system in the water-cooling type air conditioning unit according to a preset rule.
Specifically, the second preset current in step S106 may be taken according to the specific specification and environment of the specific water-cooling air conditioning unit. The first preset temperature value also needs to be determined according to factors such as the environment where the water-cooling type air conditioning unit is located.
In step S107, the number of each sub-unit system is set to 1,2,3 … …, for example, in the control logic of the water cooling type air conditioning unit. The shutdown can be started from the number 1, and of course, before the shutdown, it can also be determined whether the compressor has been shutdown within the preset start-stop interval time, and if so, the shutdown needs to be delayed until the preset start-stop interval time is exceeded. For example, the preset on-off interval time is 3 minutes, at this time, the sub-set system with the number of 2 needs to be shut down, and if it is detected that the sub-set system is shut down in the previous 1 minute, the sub-set system with the number of 2 needs to be shut down after delaying 2 minutes.
Example two
Referring to fig. 2, fig. 2 is a schematic structural diagram of a control device of a water-cooling type air conditioning unit according to a second embodiment of the present application.
As shown in fig. 2, the control device for a water-cooling type air conditioning unit according to the present embodiment includes:
the acquiring module 21 is configured to acquire the cumulative occurrence number of a plurality of preset faults within a preset time period;
the first judging module 22 is configured to judge whether the accumulated occurrence number is greater than a preset number, so as to obtain a first judgment result;
the second judgment module 23 is configured to, when the first judgment result is yes, obtain an indoor environment temperature and an outdoor cooling water inlet temperature, and judge whether the water-cooled air conditioning unit is in a nominal working condition according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result;
and the starting module 24 is configured to, when the second determination result is yes, obtain an operating current of each compressor in the water-cooled air conditioning unit, and start a water flow switch protection mechanism when the operating current of at least one of the compressors is greater than a first preset current.
Further, the apparatus of this embodiment may further include:
the third judgment module is used for acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is greater than the first preset temperature or not when the running current of at least one compressor is less than a second preset current so as to obtain a third judgment result;
and the shutdown module is used for shutting down a sub-unit system in the water-cooled air conditioning unit according to a preset rule when the third judgment result is yes.
Further, the judging condition of the nominal working condition comprises the following steps:
the indoor environment temperature is lower than the second preset temperature and the water inlet temperature of the outdoor cooling water is lower than the third preset temperature.
Further, the apparatus of this embodiment may further include:
and the alarm module is used for giving an alarm to remind a user of cleaning the cooling water pipeline when the running current of at least one compressor is greater than a first preset current.
EXAMPLE III
Referring to fig. 3, fig. 3 is a schematic structural diagram of a control device of a water-cooling type air conditioning unit according to a third embodiment of the present application.
As shown in fig. 3, the control device for a water-cooling type air conditioning unit according to the present embodiment includes:
a processor 31, and a memory 32 connected to the processor;
the memory is used for storing a computer program, and the computer program is at least used for executing the control method of the water cooling type air conditioning unit as follows:
acquiring the accumulated occurrence frequency of a plurality of preset faults in a preset time period;
judging whether the accumulated occurrence times are greater than preset times or not to obtain a first judgment result;
when the first judgment result is yes, acquiring the indoor environment temperature and the outdoor cooling water inlet temperature, and judging whether the water-cooled air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result;
and when the second judgment result is yes, acquiring the running current of each compressor in the water-cooling type air conditioning unit, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current.
Optionally, the method further includes:
when the running current of at least one compressor is smaller than a second preset current, acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is larger than the first preset temperature or not to obtain a third judgment result;
and if so, shutting down a sub-unit system in the water-cooled air conditioning unit according to a preset rule.
Optionally, the condition for determining the nominal operating condition includes:
the indoor environment temperature is lower than the second preset temperature and the water inlet temperature of the outdoor cooling water is lower than the third preset temperature.
Optionally, the method further includes:
and when the running current of at least one compressor is greater than a first preset current, giving an alarm to remind a user of cleaning the cooling water pipeline.
The processor is used for calling and executing the computer program in the memory.
Example four
The present embodiment provides a storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps in the control method for the water cooling type air conditioning unit according to the first aspect of the present application.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that, in the description of the present application, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present application, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, reference to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.
Claims (10)
1. A control method of a water-cooling type air conditioning unit is characterized by comprising the following steps:
acquiring the accumulated occurrence frequency of a plurality of preset faults in a preset time period;
judging whether the accumulated occurrence times are greater than preset times or not to obtain a first judgment result;
when the first judgment result is yes, acquiring the indoor environment temperature and the outdoor cooling water inlet temperature, and judging whether the water-cooled air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judgment result;
and when the second judgment result is yes, acquiring the running current of each compressor in the water-cooling type air conditioning unit, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current.
2. The control method of the water-cooling type air conditioning unit according to claim 1, characterized by further comprising:
when the running current of at least one compressor is smaller than a second preset current, acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is larger than the first preset temperature or not to obtain a third judgment result;
and if so, shutting down a sub-unit system in the water-cooled air conditioning unit according to a preset rule.
3. The control method of the water-cooling type air conditioning unit according to claim 1, wherein the condition for judging the nominal working condition comprises:
the indoor environment temperature is lower than the second preset temperature and the water inlet temperature of the outdoor cooling water is lower than the third preset temperature.
4. The control method of the water-cooling type air conditioning unit according to claim 1, characterized by further comprising:
and when the running current of at least one compressor is greater than a first preset current, giving an alarm to remind a user of cleaning the cooling water pipeline.
5. A control device of a water-cooling type air conditioning unit is characterized by comprising:
the acquisition module is used for acquiring the accumulated occurrence times of a plurality of preset faults in a preset time period;
the first judgment module is used for judging whether the accumulated occurrence times are greater than the preset times or not to obtain a first judgment result;
the second judging module is used for acquiring the indoor environment temperature and the outdoor cooling water inlet temperature and judging whether the water-cooling type air conditioning unit is in the nominal working condition or not according to the indoor environment temperature and the outdoor cooling water inlet temperature to obtain a second judging result when the first judging result is yes;
and the starting module is used for acquiring the running current of each compressor in the water-cooled air conditioning unit when the second judgment result is yes, and starting a water flow switch protection mechanism when the running current of at least one compressor is larger than a first preset current.
6. The control device of a water-cooling type air conditioning unit according to claim 5, characterized by further comprising:
the third judgment module is used for acquiring the outlet water temperature of the cooling water of the water-cooling type air conditioning unit and judging whether the outlet water temperature is greater than the first preset temperature or not when the running current of at least one compressor is less than a second preset current so as to obtain a third judgment result;
and the shutdown module is used for shutting down a sub-unit system in the water-cooled air conditioning unit according to a preset rule when the third judgment result is yes.
7. The control device of the water-cooling type air conditioning unit according to claim 5, wherein the condition for judging the nominal working condition includes:
the indoor environment temperature is lower than the second preset temperature and the water inlet temperature of the outdoor cooling water is lower than the third preset temperature.
8. The control device of a water-cooling type air conditioning unit according to claim 5, characterized by further comprising:
and the alarm module is used for giving an alarm to remind a user of cleaning the cooling water pipeline when the running current of at least one compressor is greater than a first preset current.
9. A control apparatus for a water-cooled air conditioning unit, comprising:
a processor, and a memory coupled to the processor;
the memory is used for storing a computer program at least for executing the control method of the water-cooling type air conditioning unit according to any one of claims 1 to 4;
the processor is used for calling and executing the computer program in the memory.
10. A storage medium storing a computer program which, when executed by a processor, implements each step in the control method of a water-cooling type air conditioning unit according to any one of claims 1 to 4.
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