CN115111791A - Water chiller, dust deposition detection method and device of condenser and readable storage medium - Google Patents
Water chiller, dust deposition detection method and device of condenser and readable storage medium Download PDFInfo
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- CN115111791A CN115111791A CN202210725006.XA CN202210725006A CN115111791A CN 115111791 A CN115111791 A CN 115111791A CN 202210725006 A CN202210725006 A CN 202210725006A CN 115111791 A CN115111791 A CN 115111791A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 97
- 239000000428 dust Substances 0.000 title claims abstract description 49
- 230000008021 deposition Effects 0.000 title claims abstract description 16
- 238000001514 detection method Methods 0.000 title claims abstract description 13
- 238000003860 storage Methods 0.000 title claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 41
- 238000004590 computer program Methods 0.000 claims description 14
- 238000005057 refrigeration Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000011161 development Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/003—Control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2104—Temperatures of an indoor room or compartment
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/21—Temperatures
- F25B2700/2116—Temperatures of a condenser
- F25B2700/21163—Temperatures of a condenser of the refrigerant at the outlet of the condenser
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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 embodiment of the application discloses method and device for detecting deposited dust of a water chiller and a condenser and a readable storage medium, wherein the water chiller can comprise: the water chiller comprises a water chiller main body, wherein a compressor, a condenser and a condensing fan are arranged in the water chiller main body; the first temperature sensor is used for detecting the ambient temperature inside the water chiller; a second temperature sensor for detecting an outlet temperature of the condenser; and the controller is used for receiving detection signals of the first temperature sensor and the second temperature sensor when the compressor and the condensing fan work at a first working condition point, and determining whether dust attached to the condenser needs to be processed or not according to the environment temperature in the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor. Implement this application, can solve among the prior art because of the not high technical problem of condenser heat exchange efficiency that condenser deposition brought.
Description
Technical Field
The application relates to the technical field of condensers, in particular to a water chiller, a dust deposition detection method and device of the condenser and a readable storage medium.
Background
With the development of the times, the condenser is widely applied to various electrical equipment and industrial equipment such as refrigerators, air conditioners, water coolers and the like, and brings great convenience to daily life and industrial production of users. When relevant refrigeration plant used, because the condenser is blown over by wind for a long time, the dust in the air can progressively adsorb on the condenser, when the deposition reaches a certain amount, will influence the heat exchange efficiency of condenser, leads to the heat exchange efficiency of condenser not high.
Disclosure of Invention
The embodiment of the application provides a method and a device for detecting accumulated dust of a water chiller and a condenser and a readable storage medium, and can solve the technical problems that in the prior art, the heat exchange efficiency of the condenser caused by the accumulated dust of the condenser is not high, and a user cannot be effectively reminded to clean the dust regularly.
In a first aspect, an embodiment of the present application provides a water chiller, which may include:
the water chiller comprises a water chiller main body, a condenser and a condensing fan, wherein the compressor, the condenser and the condensing fan are arranged in the water chiller main body;
the first temperature sensor is used for detecting the ambient temperature inside the water chiller;
a second temperature sensor for detecting an outlet temperature of the condenser;
the controller is used for receiving detection signals of the first temperature sensor and the second temperature sensor when the compressor and the condensing fan work at a first working condition point, and determining whether dust attached to the condenser needs to be treated or not according to the environment temperature in the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor; the first operating point is used for indicating that the compressor and the condensing fan respectively work at the highest rotating speeds at which the compressor and the condensing fan can work normally.
By implementing the embodiment of the present application, in the case that the compressor and the condensing fan respectively operate at the maximum rotation speed, which indicates that the output of the external heat radiation of the water chiller system has reached the limit, the controller may determine whether or not to process dust attached to the condenser based on the ambient temperature inside the water chiller indicated by the first temperature sensor and the outlet temperature of the condenser indicated by the second temperature sensor. On one hand, the realization mode can avoid the problem of low heat exchange efficiency of the condenser caused by dust deposition of the condenser; on the other hand, the normal work of the water chiller can be ensured, and the downtime condition is avoided.
In a possible implementation manner, the controller is specifically configured to:
setting a rotation speed of the condensing fan to a minimum rotation speed in a case where an outlet temperature of the condenser is less than a first threshold value;
under the condition that the outlet temperature of the condenser is greater than the first threshold value, the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is smaller than the second threshold value, the rotating speed of the condensing fan is set to be a target rotating speed, wherein the target rotating speed corresponds to the highest rotating speed at which the condensing fan can normally work, the minimum rotating speed of the condensing fan and a first experience parameter delta 1 And a second empirical parameter delta 2 It is related.
In the implementation mode, when the outlet temperature of the condenser is smaller than the first threshold value, the water chiller system is relatively safe, the refrigeration effect can be fully exerted, prompt information does not need to be output, and at the moment, the rotating speed of the condensing fan can be set to be the minimum rotating speed; when the outlet temperature of the condenser is greater than the first threshold value, the rotation speed of the condensing fan may be set to a target rotation speed.
In a possible implementation manner, the controller is further specifically configured to:
under the conditions that the outlet temperature of the condenser is greater than a first threshold value and the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is greater than a second threshold value, the rotating speed of the condensing fan is set to be the maximum rotating speed, and prompt information (such as flashing warning lamps and voice broadcasting) is output to remind a worker to process dust attached to the condenser.
In this implementation manner, when the outlet temperature of the condenser is greater than the first threshold, this indicates that the actual use environment temperature is higher or the cooling effect of the water chiller system is affected due to insufficient cooling of the condensing fan, at this time, the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser can be further determined, and if the temperature difference is less than the second threshold, the refrigerating capacity can be improved by adjusting the frequency conversion and speed regulation of the condensing fan; if the temperature difference is greater than the second threshold value, it can be determined that the refrigeration effect of the water chiller system reaches the upper limit of the capacity of the water chiller system, at this time, it is required to ensure that the condensing fan is at the maximum working rotation speed, and prompt information (for example, flashing warning lights, voice broadcast and the like) can be output to remind a worker to process dust attached to the condenser.
In a possible implementation manner, the worker does not timely clean dust or overhaul after alarming, and the temperature difference between the internal environment temperature of the water chiller and the outlet temperature of the condenser is larger than the third threshold value, so that the cold water can be stopped for safety, and the user is waited to clean dust and overhaul.
It should be noted that the first threshold described above may be the highest temperature that the condensing fan can bear when being maintained at the minimum rotation speed, and the third threshold may be the highest temperature that the condensing fan can normally operate when being maintained at the maximum rotation speed.
In a second aspect, an embodiment of the present application provides a method for detecting deposited dust of a condenser, where the method is applied to a water chiller, and the water chiller includes a water chiller main body, a first temperature sensor, a second temperature sensor, and a controller; the method for detecting the ash deposition of the condenser comprises the following steps of:
when the compressor and the condensing fan work at a first working condition point, receiving detection signals of the first temperature sensor and the second temperature sensor, and determining whether dust attached to the condenser needs to be processed or not according to the environment temperature inside the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor; the first operating point is used for indicating that the compressor and the condensing fan respectively work at the highest rotating speeds at which the compressor and the condensing fan can work normally.
In a possible implementation manner, the determining whether to process dust attached to the condenser according to the outlet temperature of the condenser obtained by the second temperature sensor includes:
setting a rotation speed of the condensing fan to a minimum rotation speed in a case where an outlet temperature of the condenser is less than a first threshold value;
under the condition that the outlet temperature of the condenser is larger than the first threshold value, the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is smaller than the second threshold value, the rotating speed of the condensing fan is set to be a target rotating speed, wherein the target rotating speed corresponds to the highest rotating speed at which the condensing fan can normally work, the minimum rotating speed of the condensing fan and a first experience parameter delta 1 And a second empirical parameter delta 2 It is related.
In a possible implementation manner, the determining whether to process dust attached to the condenser according to the ambient temperature inside the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor includes:
and under the conditions that the outlet temperature of the condenser is greater than the first threshold value and the temperature difference between the environment temperature in the water chiller and the outlet temperature of the condenser is greater than the second threshold value, outputting prompt information to remind a worker to treat dust attached to the condenser.
In a possible implementation manner, the worker does not clean dust or overhaul in time after the alarm, and under the condition that the temperature difference between the ambient temperature inside the water chiller and the outlet temperature of the condenser is greater than the third threshold, the cold water operation can be stopped for safety, and the user is waited to clean dust and overhaul.
In a third aspect, an embodiment of the present application provides a control device, including a processor and a memory, where the processor and the memory are connected to each other, where the memory is used to store a computer program that supports the control device to execute the above method, and the computer program includes program instructions, and the processor is configured to call the program instructions to execute the method of the first aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program, the computer program comprising program instructions that, when executed by a processor, cause the processor to perform the method of the first aspect.
In a fifth aspect, embodiments of the present application further provide a computer program, where the computer program includes program instructions, and the program instructions, when executed by a processor, cause the processor to execute the method of the first aspect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.
Fig. 1 is a schematic structural diagram of a water chiller provided in an embodiment of the present application;
FIG. 2a is a schematic flow chart of a method for detecting dust deposition in a condenser according to an embodiment of the present disclosure;
fig. 2b is a schematic flow chart of a control method of a water chiller system according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a control device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
Unless otherwise defined, technical or scientific terms used in the embodiments of the present specification should have the ordinary meaning as understood by those having ordinary skill in the art to which the present invention belongs. The terms "first," "second," and the like as used in the embodiments of the present specification do not denote any order, quantity, or importance, but rather are provided to avoid mixing of constituent elements.
Unless the context requires otherwise, throughout the description, the term "comprising" is to be interpreted in an open, inclusive sense, i.e., as "including, but not limited to". In the description herein, the terms "one embodiment," "some embodiments," "example," "particular example" or "some examples" or the like are intended to indicate 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 disclosure. The schematic representations of the above terms are not necessarily referring to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be included in any suitable manner in any one or more embodiments or examples. In describing some embodiments, expressions of "coupled" and "connected," along with their derivatives, may be used. For example, the term "connected" may be used in describing some embodiments to indicate that two or more elements are in direct physical or electrical contact with each other. As another example, some embodiments may be described using the term "coupled" to indicate that two or more elements are in direct physical or electrical contact. The embodiments disclosed herein are not necessarily limited to the description.
Summary of the application
With the development of the times, the condenser is widely applied to various electrical equipment and industrial equipment such as refrigerators, air conditioners, water coolers and the like, and brings great convenience to daily life and industrial production of users. When relevant refrigeration plant used, because the condenser is blown over by wind for a long time, the dust in the air can progressively adsorb on the condenser, when the deposition reaches a certain amount, will influence the heat exchange efficiency of condenser, leads to the heat exchange efficiency of condenser not high.
Generally speaking, for an air-cooled water chiller system, the refrigeration is realized by energy transfer, and finally, heat is dissipated into air through a condensing fan of a condenser, so that the temperature of the condenser (mainly referred to as condensing temperature) is generally higher than the ambient temperature, and at the moment, if enough air blows, the heat can be ensured to be taken away in time.
Accordingly, embodiments of the present disclosure provide a water chiller and a method for detecting dust deposition on a condenser, which can determine whether dust adhering to the condenser needs to be treated based on an ambient temperature inside the water chiller indicated by a first temperature sensor and an outlet temperature of the condenser indicated by a second temperature sensor when a compressor and a condensing fan are respectively operated at a maximum rotation speed. The technical solutions in the embodiments of the present specification will be described below with reference to the drawings in the embodiments of the present specification. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification without any creative effort belong to the protection scope of the present specification.
Exemplary method
Referring to fig. 1, fig. 1 is a schematic structural diagram of a water chiller in a hardware operating environment according to an embodiment of the present application.
In the following description, suffixes such as "module", "part", and "unit" used to indicate elements are used only for facilitating the explanation of the present invention, and there is no particular meaning in the present application. Thus, "module", "component", and "unit" may be used mixedly.
As shown in fig. 1, the water chiller 100 includes a water chiller main body 101, a first temperature sensor 102, a second temperature sensor 103, and a controller 104; wherein, a compressor 1011, a condenser 1012 and a condensing fan 1013 are installed in the water chiller main body 101; the first temperature sensor 102 is arranged inside the water chiller main body 101 and used for detecting the ambient temperature inside the water chiller; a second temperature sensor 103 is provided at the outlet end of the condenser 103 for detecting the outlet temperature of the condenser.
In the embodiment of the present application, the condensing fan may be a dc adjustable fan, and the stepless adjustable range of the condensing fan is 0 to Sp _ max, wherein the minimum rotation speed may be set to Sp _ min being 500 to 1000RPM (revolutions per minute).
Taking the water chiller shown in fig. 1 as an example, the following describes in detail a method for detecting deposited dust in a condenser provided by the present application, as shown in fig. 2, the method may include, but is not limited to, the following steps:
s200, respectively acquiring the rotating speeds of a compressor and a condensing fan;
step S201, judging whether the compressor is at the highest rotating speed capable of working normally; if yes, go to step S202; if not, determining that the refrigerating capacity of the water chiller system is rich.
Step S202, judging whether the condensing fan is in the highest rotating speed capable of working normally; if yes, go to step S203; if not, determining that the refrigerating capacity of the water chiller system has surplus.
Step S203, receiving a detection signal of a second temperature sensor, and detecting the outlet temperature of the condenser;
step S204, receiving a detection signal of a first temperature sensor, and detecting the internal environment temperature of the water chiller;
step S205, determining whether the dust attached to the condenser needs to be processed according to the environment temperature in the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor. The specific implementation can be as shown in fig. 2b, which is specifically set forth below:
in one embodiment, the controller may determine whether the outlet temperature of the condenser is greater than a first threshold, and if the outlet temperature of the condenser is less than the first threshold, this indicates that the water chiller system is relatively safe, the refrigeration effect may be fully exerted, and no prompt information needs to be output, and at this time, the rotation speed of the condensing fan may be set to the minimum rotation speed; if the outlet temperature of the condenser is judged to be greater than the first threshold value, which indicates that the refrigeration effect of the water chiller system is affected, at this time, the rotating speed of the condensing fan can be set to be the target rotating speed.
In one embodiment, the target rotational speed may be determined according to the following equation (1):
wherein Sp represents a target rotation speed, Sp _ min represents a minimum rotation speed of the condensing fan, Sp _ max represents a maximum rotation speed of the condensing fan capable of working normally, T represents an ambient temperature collected by the first temperature sensor, Tx represents an outlet temperature of the condenser collected by the second temperature sensor, and delta 1 Representing a first empirical parameter, δ 2 A second empirical parameter is indicated. Generally, delta 1 、δ 2 The values of (a) can be as shown in table 1:
TABLE 1
| δ1 | δ2 | T1 | T2 | T3 |
| 2～5℃ | δ1+(5～15)℃ | 20～30℃ | T+δ 2 | T2+(3～5)℃ |
It should be noted that the values shown in table 1 are only an example and should not be limited, and in the table, T1 represents a first threshold, T2 represents a second threshold, and T3 represents a third threshold.
As can be seen from equation (1), the rotational speed signal at Tx ═ T + δ 1 When the rotation speed is Sp _ min, Tx is T + delta 2 When the rotating speed is Sp _ max, the middle stage Sp changes linearly with the change of Tx.
Illustratively, the reminder information may include, but is not limited to: flashing warning lamps, voice broadcasting and the like.
In one embodiment, the controller may determine whether the outlet temperature of the condenser is greater than a first threshold, which indicates whether the cooling effect of the water chiller system is sufficient to be surplus. Under the condition that the outlet temperature of the condenser is judged to be larger than the first threshold value, whether the temperature difference between the environment temperature inside the water cooler and the outlet temperature of the condenser is larger than a second threshold value or not can be further judged, if the temperature difference between the environment temperature inside the water cooler and the outlet temperature of the condenser is judged to be smaller than the second threshold value, the condensing fan can be obtained according to the rotating speed calculation formula, and the cooling capacity is improved by improving the rotating speed, so that the purpose of improving the refrigerating capacity is achieved; if the temperature difference is greater than the second threshold value, the refrigeration effect of the water chiller system can be determined to reach the limit, or the preset requirement can not be met, at the moment, the condensation fan can work at the maximum rotating speed, and meanwhile prompt information (such as flashing of an alarm lamp, voice broadcasting, sounding of a buzzer and the like) is output to remind a worker to process dust attached to the condenser. It can be understood that when the dust is cleaned, the heat dissipation of the water chiller system is enhanced, and the water chiller system can automatically return to the former state, so that the water chiller system can automatically clear the alarm.
It should be noted that, in practical applications, the second threshold T2 may be T + δ 2 ℃。
If the temperature difference between the ambient temperature in the water cooler and the outlet temperature of the condenser is larger than the third threshold value, certain potential safety hazards exist due to overhigh condensing pressure, the evaporation end is difficult to control under common conditions, and corresponding refrigerating capacity requirements are provided. At the moment, the system can be forcibly stopped when the prompt information is output, and the system can be restarted after workers need to be overhauled to ensure safety.
In practical applications, the third threshold value T3 may be T2+ (3-5) ° c.
It should be noted that the first threshold described above may be the highest temperature that the condensing fan can bear when being maintained at the minimum rotation speed, and the third threshold may be the highest temperature that the condensing fan can normally operate when being maintained at the maximum rotation speed.
In one embodiment, the controller may obtain a pressure difference between an inlet and an outlet of the condensing fan, and then determine an amount of ash accumulated in the condenser based on the pressure difference between the inlet and the outlet of the condensing fan and an ambient temperature inside the water chiller. For example, the dust deposition amount of the condenser corresponding to different ambient temperatures and different pressure differences between the air inlet and the air outlet of the condensing fan can be obtained in advance through experiments, and a corresponding data relation table is established according to the corresponding relation between the ambient temperature, the pressure difference between the air inlet and the air outlet of the condensing fan and the dust deposition amount obtained through the experiments, and is stored. And after acquiring the pressure difference between the air inlet and the air outlet of the condensing fan and the ambient temperature inside the water chiller, acquiring the ash deposition amount of the condenser by inquiring the data relation table.
In one embodiment, a preset threshold corresponding to the soot deposition amount may be preset. The preset threshold value may be set experimentally. When the accumulated dust amount of the condenser is smaller than the fourth threshold value, the heat exchange efficiency of the condenser is basically not influenced, and when the accumulated dust amount of the condenser is larger than the fourth threshold value, the heat exchange efficiency of the condenser is influenced, and at the moment, prompt information can be output.
In general, in the case where the compressor and the condensing fan are operated at the maximum rotational speeds, respectively, which indicates that the output of the water chiller system to the outside heat radiation has reached the limit, the controller may determine whether or not the dust attached to the condenser needs to be treated based on the ambient temperature inside the water chiller, which is indicated by the first temperature sensor, and the outlet temperature of the condenser, which is indicated by the second temperature sensor. On one hand, the realization mode can avoid the problem of low heat exchange efficiency of the condenser caused by dust deposition of the condenser; on the other hand, the normal work of the water chiller can be ensured, and the downtime condition is avoided.
Exemplary devices
In order to better implement the above solution of the embodiment of the present invention, the present invention further provides a control device, which is described in detail below with reference to the accompanying drawings:
as shown in fig. 3, which is a schematic structural diagram of the control device provided in the embodiment of the present invention, the control device 30 may include a processor 301, a memory 304, and a communication module 305, and the processor 301, the memory 304, and the communication module 305 may be connected to each other through a bus 306. The Memory 304 may be a Random Access Memory (RAM) Memory or a non-volatile Memory (non-volatile Memory), such as at least one disk Memory. The memory 304 may optionally be at least one memory system located remotely from the processor 301. The memory 304 is used for storing application program codes and can comprise an operating system, a network communication module, a user interface module and a data processing program, and the communication module 305 is used for information interaction with external devices; the processor 301 is configured to call the program code, performing the steps of:
when the compressor and the condensing fan work at a first working condition point, receiving detection signals of the first temperature sensor and the second temperature sensor, and determining whether dust attached to the condenser needs to be processed or not according to the environment temperature in the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor; the first operating point is used for indicating that the compressor and the condensing fan respectively work at the highest rotating speeds at which the compressor and the condensing fan can work normally.
Wherein, the processor 301 determines whether to process the dust attached to the condenser according to the outlet temperature of the condenser obtained by the second temperature sensor, and includes:
setting a rotation speed of the condensing fan to a minimum rotation speed in a case where an outlet temperature of the condenser is less than a first threshold value;
in the water chiller when the outlet temperature of the condenser is greater than the first threshold valueUnder the condition that the temperature difference between the ambient temperature of the condenser and the outlet temperature of the condenser is less than a second threshold value, the rotating speed of the condensing fan is set to be a target rotating speed, wherein the target rotating speed is the highest rotating speed at which the condensing fan can normally work, the minimum rotating speed of the condensing fan and a first experience parameter delta 1 And a second empirical parameter delta 2 It is related.
The determining, by the processor 301, whether to process dust attached to the condenser according to the ambient temperature inside the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor includes:
and under the conditions that the outlet temperature of the condenser is greater than the first threshold value and the temperature difference between the environment temperature in the water chiller and the outlet temperature of the condenser is greater than the second threshold value, outputting prompt information to remind a worker to treat dust attached to the condenser.
Wherein the third threshold is the highest temperature at which the condensing fan can normally operate when maintained at the highest rotation speed.
It should be noted that, for the execution steps of the processor in the control device 30 in the embodiment of the present invention, reference may be made to the specific implementation manner of the controller in the embodiment of fig. 2a in the foregoing method embodiments, and details are not described here again.
Exemplary computer program product and storage Medium
In addition to the above-described methods and apparatus, embodiments of the present application may also be a computer program product comprising computer program instructions that, when executed by a processor, cause the processor to perform the steps in the blind buried hole overlap detection method according to various embodiments of the present application described in the above-mentioned "exemplary methods" section of this specification.
The computer program product may include program code for carrying out operations for embodiments of the present application in any combination of one or more programming languages, including an object oriented programming language such as Java, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computing device, partly on the user's device, as a stand-alone software package, partly on the user's computing device and partly on a remote computing device, or entirely on the remote computing device or server.
Furthermore, embodiments of the present application may also be a storage medium having stored thereon a computer program which is executed by a processor to perform steps in an overlap detection method of blind buried holes according to various embodiments of the present application described in the above section "exemplary method" of the present specification.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, database or other medium used in the embodiments provided herein can include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), Programmable ROM (PROM), Electrically Programmable ROM (EPROM), Electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), Dynamic RAM (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDRSDRAM), Enhanced SDRAM (ESDRAM), Synchronous Link DRAM (SLDRAM), Rambus Direct RAM (RDRAM), direct bus dynamic RAM (DRDRAM), and memory bus dynamic RAM (RDRAM).
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, and these are all within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A water chiller, comprising:
the water chiller comprises a water chiller main body, a condenser and a condensing fan, wherein the compressor, the condenser and the condensing fan are arranged in the water chiller main body;
the first temperature sensor is used for detecting the ambient temperature inside the water chiller;
a second temperature sensor for detecting an outlet temperature of the condenser;
the controller is used for receiving detection signals of the first temperature sensor and the second temperature sensor when the compressor and the condensing fan work at a first working condition point, and determining whether dust attached to the condenser needs to be treated or not according to the environment temperature in the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor; the first working condition point is used for indicating that the compressor and the condensing fan respectively work at the highest rotating speed at which the compressor and the condensing fan can work normally.
2. The water chiller of claim 1, wherein the controller is specifically configured to:
setting a rotation speed of the condensing fan to a minimum rotation speed in a case where an outlet temperature of the condenser is less than a first threshold value;
the outlet temperature of the condenser is greater than the first threshold value and the temperature difference between the ambient temperature inside the water chiller and the outlet temperature of the condenser is less than a second threshold valueSetting the rotating speed of the condensing fan as a target rotating speed under the condition of the value, wherein the target rotating speed is equal to the highest rotating speed at which the condensing fan can normally work, the minimum rotating speed of the condensing fan and a first experience parameter delta 1 And a second empirical parameter delta 2 It is relevant.
3. The water chiller of claim 1, wherein the controller is further specifically configured to:
the outlet temperature of the condenser is larger than the first threshold value, and under the condition that the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is larger than the second threshold value, the rotating speed of the condensing fan is set to be the maximum rotating speed, and meanwhile prompt information is output to remind a worker to process dust attached to the condenser.
4. The water chiller of claim 1, wherein the controller is further specifically configured to:
the outlet temperature of the condenser is larger than the first threshold value, and under the condition that the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is larger than the third threshold value, the water chiller stops working, and meanwhile, workers are reminded to treat or overhaul dust attached to the condenser.
5. The method is characterized in that the method is applied to a water chiller, and the water chiller comprises a water chiller main body, a first temperature sensor, a second temperature sensor and a controller; the method for detecting the ash deposition of the condenser comprises the following steps of:
when the compressor and the condensing fan work at a first working condition point, receiving detection signals of the first temperature sensor and the second temperature sensor, and determining whether dust attached to the condenser needs to be processed or not according to the environment temperature inside the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor; the first operating point is used for indicating that the compressor and the condensing fan respectively work at the highest rotating speeds at which the compressor and the condensing fan can work normally.
6. The method of claim 5, wherein said determining whether dust attached to said condenser needs to be treated based on said outlet temperature of said condenser obtained by said second temperature sensor comprises:
setting a rotation speed of the condensing fan to a minimum rotation speed in a case where an outlet temperature of the condenser is less than a first threshold value;
under the condition that the outlet temperature of the condenser is greater than the first threshold value, the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is smaller than the second threshold value, the rotating speed of the condensing fan is set to be a target rotating speed, wherein the target rotating speed corresponds to the highest rotating speed at which the condensing fan can normally work, the minimum rotating speed of the condensing fan and a first experience parameter delta 1 And a second empirical parameter delta 2 It is related.
7. The method as claimed in claim 5, wherein the determining whether the dust attached to the condenser needs to be treated according to the ambient temperature inside the water chiller obtained by the first temperature sensor and the outlet temperature of the condenser obtained by the second temperature sensor comprises:
the outlet temperature of the condenser is larger than the first threshold value, and under the condition that the temperature difference between the environment temperature inside the water chiller and the outlet temperature of the condenser is larger than the second threshold value, the rotating speed of the condensing fan is set to be the maximum rotating speed, and meanwhile prompt information is output to remind a worker to process dust attached to the condenser.
8. The method of claim 5, wherein in the event that the outlet temperature of the condenser is greater than the first threshold and the temperature difference between the ambient temperature inside the water chiller and the outlet temperature of the condenser is greater than a third threshold, the water chiller is stopped while a worker is alerted to handle or repair dust adhering to the condenser.
9. A control device, characterized in that the control device comprises: a processor and a memory, the processor and the memory being interconnected, wherein the memory is configured to store a computer program comprising program instructions, the processor being configured to invoke the program instructions to perform the method of any of claims 5-8.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program comprising program instructions that, when executed by a processor, cause the processor to carry out the method according to any one of claims 5-8.
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| CN202210725006.XA CN115111791B (en) | 2022-06-24 | 2022-06-24 | Water chiller, method and device for detecting dust deposit of condenser and readable storage medium |
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| CN202210725006.XA CN115111791B (en) | 2022-06-24 | 2022-06-24 | Water chiller, method and device for detecting dust deposit of condenser and readable storage medium |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006118733A (en) * | 2004-10-19 | 2006-05-11 | Matsushita Electric Ind Co Ltd | Air conditioner |
| US20160238332A1 (en) * | 2013-11-28 | 2016-08-18 | Elstat Limited | Heat Exchanger Fault Diagnostic |
| CN106642558A (en) * | 2016-12-06 | 2017-05-10 | 海信（广东）空调有限公司 | Detection method for dust removal of variable frequency air conditioner heat exchanger |
| CN106949664A (en) * | 2017-03-17 | 2017-07-14 | 合肥美的电冰箱有限公司 | The control method and system, refrigerator and terminal of intelligent maintenance condenser dust stratification |
| CN107084556A (en) * | 2017-06-14 | 2017-08-22 | 合肥美的电冰箱有限公司 | Control method, device and the computer-readable recording medium of condenser |
| WO2018011935A1 (en) * | 2016-07-14 | 2018-01-18 | 三菱電機株式会社 | Refrigerating device |
| WO2018193537A1 (en) * | 2017-04-19 | 2018-10-25 | 三菱電機株式会社 | Air conditioner and control method for fan speed of air conditioner |
| CN113669841A (en) * | 2021-08-31 | 2021-11-19 | 佛山市顺德区美的电子科技有限公司 | Method and device for detecting dust accumulation blockage of air conditioner, air conditioner and storage medium |
| CN215864114U (en) * | 2021-09-16 | 2022-02-18 | 深圳市酷凌时代科技有限公司 | Water chiller with fault detection function |
| 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 |
-
2022
- 2022-06-24 CN CN202210725006.XA patent/CN115111791B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006118733A (en) * | 2004-10-19 | 2006-05-11 | Matsushita Electric Ind Co Ltd | Air conditioner |
| US20160238332A1 (en) * | 2013-11-28 | 2016-08-18 | Elstat Limited | Heat Exchanger Fault Diagnostic |
| WO2018011935A1 (en) * | 2016-07-14 | 2018-01-18 | 三菱電機株式会社 | Refrigerating device |
| CN106642558A (en) * | 2016-12-06 | 2017-05-10 | 海信（广东）空调有限公司 | Detection method for dust removal of variable frequency air conditioner heat exchanger |
| CN106949664A (en) * | 2017-03-17 | 2017-07-14 | 合肥美的电冰箱有限公司 | The control method and system, refrigerator and terminal of intelligent maintenance condenser dust stratification |
| WO2018193537A1 (en) * | 2017-04-19 | 2018-10-25 | 三菱電機株式会社 | Air conditioner and control method for fan speed of air conditioner |
| CN107084556A (en) * | 2017-06-14 | 2017-08-22 | 合肥美的电冰箱有限公司 | Control method, device and the computer-readable recording medium of condenser |
| CN113669841A (en) * | 2021-08-31 | 2021-11-19 | 佛山市顺德区美的电子科技有限公司 | Method and device for detecting dust accumulation blockage of air conditioner, air conditioner and storage medium |
| CN215864114U (en) * | 2021-09-16 | 2022-02-18 | 深圳市酷凌时代科技有限公司 | Water chiller with fault detection function |
| 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 |
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| CN115111791B (en) | 2024-02-09 |
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