CN110094853B - Unit dust removal control method and device and unit - Google Patents
Unit dust removal control method and device and unit Download PDFInfo
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- CN110094853B CN110094853B CN201910478048.6A CN201910478048A CN110094853B CN 110094853 B CN110094853 B CN 110094853B CN 201910478048 A CN201910478048 A CN 201910478048A CN 110094853 B CN110094853 B CN 110094853B
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- 239000000428 dust Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000005057 refrigeration Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 7
- 238000004364 calculation method Methods 0.000 claims description 3
- 238000004590 computer program Methods 0.000 claims description 2
- 238000010410 dusting Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 14
- 238000009825 accumulation Methods 0.000 abstract description 3
- 230000008021 deposition Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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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
-
- 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
-
- 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
- F24F11/67—Switching between heating and cooling modes
-
- 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
-
- 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
-
- 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
- F24F11/87—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units
- F24F11/871—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling absorption or discharge of heat in outdoor units by controlling outdoor fans
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a unit dust removal control method, a device and a unit, wherein the method comprises the following steps: acquiring operation parameters of a unit, and judging whether the operation parameters meet preset conditions or not; triggering to execute a dust removal operation after the operation parameters meet preset conditions; correcting the operating frequency of the fan based on a preset correction strategy to obtain the corrected operating frequency; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation. The invention judges whether the heat exchanger of the unit has dust accumulation by using the operation parameters of the unit so as to trigger the dust removal operation and correct the operation frequency of the fan in the dust removal operation, thereby ensuring the dust removal effect and the heat exchange efficiency of the elevator unit.
Description
Technical Field
The invention relates to the technical field of units, in particular to a unit dust removal control method, a device and a unit.
Background
For an air conditioner, an outdoor unit of the air conditioner is generally installed outdoors, a large amount of dust is accumulated on the surface of a heat exchanger of the air conditioner during idle periods of the air conditioner, and the dust on the surface of the heat exchanger is firmly adsorbed on the surface of the heat exchanger and is difficult to remove due to the air outlet form of the upper air outlet multi-split air conditioner.
The dust deposition on the heat exchanger can cause the heat exchange efficiency to decline, greatly reduced unit's travelling comfort, and the unit energy consumption increases, causes the energy waste.
Aiming at the problems of how to remove dust of a unit and improve the dust removal effect in the related art, an effective solution is not provided at present.
Disclosure of Invention
The invention provides a unit dust removal control method, a device and a unit, which at least solve the problems of how to remove dust of the unit and improve the dust removal effect in the prior art.
In order to solve the above technical problem, according to an aspect of an embodiment of the present invention, there is provided a method for controlling dust removal of a unit, wherein the method includes: acquiring operation parameters of a unit, and judging whether the operation parameters meet preset conditions or not; triggering to execute a dust removal operation after the operation parameters meet preset conditions; correcting the operating frequency of the fan according to the interval time between the current dust removal operation and the previous dust removal operation to obtain the corrected operating frequency; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation.
Further, the operation parameters of the unit at least comprise one of the following parameters: compressor discharge pressure, compressor suction pressure, compressor current.
Further, judging whether the operation parameters meet preset conditions includes: determining whether the unit is in a cooling mode or a heating mode; if the unit is in a refrigeration mode, judging whether at least one of the operation parameters is higher than a threshold value corresponding to the parameter, if so, judging that the operation parameters meet preset conditions; and if the unit is in the heating mode, judging whether at least one of the operation parameters is lower than a threshold corresponding to the parameter, and if so, judging that the operation parameters meet preset conditions.
Further, triggering to execute a dust removal operation, comprising: triggering the fan to reversely rotate; and controlling the compressor and the unit throttling part to stop running.
Further, the operation frequency of the fan is corrected based on a preset correction strategy to obtain the corrected operation frequency, and the method comprises the following steps: determining a frequency correction value based on a preset correction strategy; the corrected operating frequency is obtained by the following formula: setting the corrected running frequency as a preset initial frequency plus the frequency correction value; wherein, the operating frequency of fan is the initial frequency of predetermineeing in the first dust removal operation.
Further, determining a frequency correction value based on a preset correction strategy includes: determining a frequency correction value according to the interval time between the current dust removal operation and the previous dust removal operation; wherein the frequency correction value is smaller as the interval time is longer.
Further, determining a frequency correction value based on a preset correction strategy includes: determining that the current dust removal operation is the dust removal operation of the second time after the unit is started; determining a frequency correction value corresponding to the number of times of the dust removal operation; wherein the frequency correction value is larger as the number of times is larger.
The invention provides a unit dust removal control device, wherein the device comprises: the acquisition module is used for acquiring the operation parameters of the unit; the judging module is used for judging whether the operation parameters meet preset conditions or not; the dust removal module is used for triggering and executing dust removal operation after the operation parameters meet preset conditions; the correction module is used for correcting the operating frequency of the fan based on a preset correction strategy to obtain the corrected operating frequency; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation.
Further, the operation parameters of the unit at least comprise one of the following parameters: compressor discharge pressure, compressor suction pressure, compressor current.
Further, the determining module includes: the mode confirming unit is used for confirming that the unit is in a cooling mode or a heating mode; the first judgment unit is used for judging whether at least one of the operation parameters is higher than a threshold value corresponding to the parameter when the unit is in a refrigeration mode, and if so, judging that the operation parameters meet preset conditions; and the second judgment unit is used for judging whether at least one of the operation parameters is lower than a threshold corresponding to the parameter when the unit is in the heating mode, and if so, judging that the operation parameters meet preset conditions.
Further, the dust removal module is specifically used for triggering the fan to reversely rotate; and controlling the compressor and the unit throttling part to stop running.
Further, the correction module includes: a correction value determining unit for determining a frequency correction value based on a preset correction strategy; a correction calculation unit, configured to obtain the corrected operating frequency according to the following formula: setting the corrected running frequency as a preset initial frequency plus the frequency correction value; wherein, the operating frequency of fan is the initial frequency of predetermineeing in the first dust removal operation.
Further, the correction value determining unit is specifically configured to determine a frequency correction value according to an interval time between a current dust removal operation and a previous dust removal operation; wherein the frequency correction value is smaller as the interval time is longer.
Further, the correction value determining unit is specifically configured to determine that the current dust removal operation is a dust removal operation of a few times after the unit is started up; determining a frequency correction value corresponding to the number of times of the dust removal operation; wherein the frequency correction value is larger as the number of times is larger.
The invention provides a unit, wherein the unit comprises the unit dust removal control device.
The invention provides a computer-readable storage medium, on which a computer program is stored, characterized in that the program, when being executed by a processor, implements the method as described above.
The invention provides a unit dust removal scheme, which judges whether dust accumulation exists in a unit heat exchanger by using the operation parameters of a unit so as to trigger dust removal operation, and corrects the operation frequency of a fan in the dust removal operation, so that the dust removal effect is ensured, and the heat exchange efficiency of a hoisting machine unit is improved.
Drawings
FIG. 1 is a flow chart of a unit dust removal control method according to an embodiment of the invention;
FIG. 2 is a flow chart of the unit dust removal adjustment according to an embodiment of the present invention;
fig. 3 is a block diagram of a dust removal control device of a unit according to an embodiment of the present invention.
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 invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
Example 1
Fig. 1 is a flowchart of a unit dust removal control method according to an embodiment of the present invention, and as shown in fig. 1, the method includes the following steps:
step S102, acquiring operation parameters of the unit, and judging whether the operation parameters meet preset conditions;
step S104, triggering and executing a dust removal operation after the operation parameters meet preset conditions;
step S106, correcting the running frequency of the fan according to the interval time between the current dust removal operation and the previous dust removal operation to obtain the corrected running frequency; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation.
Through this embodiment, utilize the operating parameter of unit to judge whether there is dust in the unit heat exchanger and pile up to trigger dust removal operation, and revise the operating frequency of fan in the dust removal operation, thereby guarantee dust removal effect, lifting machine group heat exchange efficiency.
In this embodiment, the operation parameters of the unit may include at least one of the following: compressor discharge pressure, compressor suction pressure, compressor current. Of course, as for other operation parameters of the unit, as long as the operation conditions of the unit can be reflected and the monitoring is convenient, the operation parameters can be used as the operation parameters to perform subsequent judgment on preset conditions.
After the operation parameters of the unit are obtained, whether the operation parameters meet preset conditions or not can be judged through the following preferred embodiment, and specifically, the unit is determined to be in a cooling mode or a heating mode; if the unit is in a refrigeration mode, judging whether at least one of the operation parameters is higher than a threshold value corresponding to the parameter, if so, judging that the operation parameters meet preset conditions; and if the unit is in the heating mode, judging whether at least one of the operation parameters is lower than a threshold corresponding to the parameter, and if so, judging that the operation parameters meet preset conditions.
Any one of the operation parameters of the embodiment has a corresponding threshold value. When the unit is started, detecting the operation mode and operation parameters (such as parameters of suction and exhaust pressure of a compressor, current of the compressor and the like) of the unit, then carrying out comprehensive judgment, and if the unit is in a refrigeration mode, detecting that any one of the following conditions is met: 1. the discharge pressure of the compressor is greater than A; 2. the suction pressure of the compressor is greater than B; 3. if the current of the compressor is larger than C, the surface of the heat exchanger of the system is considered to be deposited with dust, and the unit enters a dust removal mode; if the unit is in a heating mode, detecting that any one of the following conditions is met: 1. the exhaust pressure of the compressor is less than C; 2. the suction pressure of the compressor is less than D; 3. and if the current of the compressor is less than E, determining that dust is deposited on the surface of the system heat exchanger, and enabling the unit to enter a dust removal mode.
Based on this, through comparing above-mentioned operating parameter and threshold value, whether the judgement heat exchanger surface that can be timely accurate is deposited ash, provides a high-efficient accurate heat exchanger deposition detection scheme, also provides the basis for follow-up dust removal operation that triggers.
After the operation parameters of the unit are monitored to meet the preset conditions, the dust removal operation is triggered to be executed, and the following preferred embodiment can be implemented: triggering the fan to reversely rotate; and controlling the compressor and the unit throttling part to stop running. Based on this, can high efficiency blow off the deposition on heat exchanger surface, promote the dust removal effect of unit, lifting machine group heat exchange efficiency.
When the reverse running of the fan is triggered, the reverse running of the fan has running frequency. The setting of the operating frequency may be performed according to a preset operating frequency, or on the basis of the preset operating frequency, the frequency may be corrected for each dust removal operation, so as to further ensure the dust removal effect. Based on this, the embodiment of the present invention provides an optimal implementation manner, that is, the operation frequency of the fan is corrected based on a preset correction strategy, so as to obtain a corrected operation frequency. Specifically, determining a frequency correction value based on a preset correction strategy; the corrected operating frequency is obtained by the following formula: setting the corrected running frequency as a preset initial frequency plus a frequency correction value; wherein, the operating frequency of fan is the initial frequency of predetermineeing in the first dust removal operation.
The embodiment provides at least two preset correction strategies, wherein the first strategy is as follows: determining a frequency correction value according to the interval time between the current dust removal operation and the previous dust removal operation; wherein the longer the interval time, the smaller the frequency correction value. The second method is as follows: determining that the current dust removal operation is the dust removal operation of the second time after the unit is started; determining a frequency correction value corresponding to the number of times of the dust removal operation; the more the number of times, the larger the deviation of the operating frequency, the more the correction is required, and therefore, the larger the frequency correction value.
It should be noted that the correspondence between the interval time and the frequency correction value, or the correspondence between the number of times of dust removal and the frequency correction value, may be set in advance or modified at any time, for example, set in a linear correspondence, a proportional relationship, or a one-to-one relationship, etc.
Example 2
Fig. 2 is a flow chart of adjusting the dust removal of the unit according to the embodiment of the present invention, and as shown in fig. 2, the flow chart includes the following steps:
step S201, starting a unit;
step S202, detecting parameters such as an operation mode of the unit, suction and exhaust pressure of a compressor, current of the compressor and the like, and performing comprehensive judgment; if the unit is in the cooling operation mode, executing step S203, and if the unit is in the heating operation mode, executing step S204;
step S203, if the unit is in a refrigeration mode, detecting system parameters to meet any one of the following conditions that 1 and the compressor discharge pressure is greater than A; 2. the suction pressure of the compressor is greater than B; 3. if the compressor current is larger than C, determining that ash is deposited on the surface of the system heat exchanger, and executing the step S205;
step S204, if the unit is in a heating mode, detecting system parameters to meet any one of the following conditions that 1 and the compressor exhaust pressure is less than C; 2. the suction pressure of the compressor is less than D; 3. if the current of the compressor is less than E, the surface of the heat exchanger of the system is considered to be deposited with dust, and the step S205 is executed;
and step S205, the unit enters a dust removal mode.
After the system enters a dust removal mode, the compressor and the throttling part of the unit stop running, the outdoor fan runs reversely, and the running frequency is H + delta H. When the dust removal mode is carried out for the first time, the initial operation frequency of the fan is H, and the delta H is a frequency compensation value.
And then, compensating and correcting the running frequency of the fan during reverse rotation according to the interval time of the unit entering the dust removal mode, and further increasing the dust removal effect. Or, according to the number of times that the unit enters the dust removal mode, compensating and correcting the operating frequency when the fan rotates reversely, and further increasing the dust removal effect.
TABLE 1
| Interval time between two dust removals | △h |
| ≤t1 | f1 |
| t1＜t≤t2 | f2 |
| t2＜t≤t3 | f3 |
| ＞t3 | f4 |
Table 1 shows the correspondence between the dedusting interval time and the frequency correction value, where the frequency correction value of the fan decreases as the dedusting interval time increases, that is: f. of1＞f2＞f3＞f4。
Example 3
Corresponding to the unit dust removal control method introduced in fig. 1, this embodiment provides a unit dust removal control device, as shown in a block diagram of the structure of the unit dust removal control device in fig. 3, the device includes:
the acquisition module 10 is used for acquiring the operation parameters of the unit;
the judging module 20 is connected to the obtaining module 10 and is used for judging whether the operation parameters meet preset conditions;
the dust removal module 30 is connected to the judgment module 20 and is used for triggering and executing dust removal operation after the operation parameters meet the preset conditions;
the correcting module 40 is connected to the dust removing module 30 and used for correcting the operating frequency of the fan based on a preset correcting strategy to obtain a corrected operating frequency; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation.
Through this embodiment, utilize the operating parameter of unit to judge whether there is dust in the unit heat exchanger and pile up to trigger dust removal operation, and revise the operating frequency of fan in the dust removal operation, thereby guarantee dust removal effect, lifting machine group heat exchange efficiency.
In this embodiment, the operation parameters of the unit may include at least one of the following: compressor discharge pressure, compressor suction pressure, compressor current. Of course, as for other operation parameters of the unit, as long as the operation conditions of the unit can be reflected and the monitoring is convenient, the operation parameters can be used as the operation parameters to perform subsequent judgment on preset conditions.
The judging module 20 includes: the mode confirming unit is used for confirming that the unit is in a cooling mode or a heating mode; the first judgment unit is used for judging whether at least one of the operation parameters is higher than a threshold value corresponding to the parameter when the unit is in a refrigeration mode, and if so, judging that the operation parameters meet preset conditions; and the second judgment unit is used for judging whether at least one of the operation parameters is lower than a threshold corresponding to the parameter when the unit is in the heating mode, and if so, judging that the operation parameters meet the preset conditions. Any one of the operation parameters of the embodiment has a corresponding threshold value.
Based on this, through comparing above-mentioned operating parameter and threshold value, whether the judgement heat exchanger surface that can be timely accurate is deposited ash, provides a high-efficient accurate heat exchanger deposition detection scheme, also provides the basis for follow-up dust removal operation that triggers.
The dust removal module 30 is specifically configured to trigger the fan to operate in a reverse direction; and controlling the compressor and the unit throttling part to stop running. Based on this, can high efficiency blow off the deposition on heat exchanger surface, promote the dust removal effect of unit, lifting machine group heat exchange efficiency.
The modification module 40 may include: a correction value determining unit for determining a frequency correction value based on a preset correction strategy; a correction calculation unit, configured to obtain the corrected operating frequency according to the following formula: setting the corrected running frequency as a preset initial frequency plus a frequency correction value; wherein, the operating frequency of fan is the initial frequency of predetermineeing in the first dust removal operation. Therefore, the frequency is corrected according to each dust removal operation, and the dust removal effect is further ensured.
The embodiment provides at least two preset correction strategies, and specifically, the correction value determining unit is specifically configured to determine a frequency correction value according to an interval time between a current dust removal operation and a previous dust removal operation; wherein the longer the interval time, the smaller the frequency correction value. Or, the correction value determining unit is specifically configured to determine that the current dust removal operation is a dust removal operation of a second time after the unit is started up; determining a frequency correction value corresponding to the number of times of the dust removal operation; wherein, the more the times, the larger the frequency correction value.
It should be noted that the correspondence between the interval time and the frequency correction value, or the correspondence between the number of times of dust removal and the frequency correction value, may be set in advance or modified at any time, for example, set in a linear correspondence, a proportional relationship, or a one-to-one relationship, etc.
The embodiment also provides a unit, which comprises the unit dust removal control device introduced above, so as to realize a dust removal scheme and a dust removal correction scheme for the unit. The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
Example 4
The embodiment of the invention provides a nonvolatile computer storage medium, wherein a computer executable instruction is stored in the computer storage medium and can execute the method for dedusting and dedusting correction of a unit in any method embodiment.
Therefore, the method for judging whether dust accumulation exists in the heat exchanger of the unit by using the operation parameters of the unit, controlling the outdoor fan to reversely rotate, and performing dust removal treatment on the heat exchanger to improve the heat exchange efficiency of the unit is provided.
From the above description, it can be seen that the present invention mainly improves the following technical solutions:
1. analyzing unit parameters including compressor current, suction and exhaust pressure, unit operation mode and other parameters, and judging whether the heat exchanger accumulates dust;
2. after confirming the surface dust deposition of the heat exchanger of the unit, sending a command to a fan of the unit to enable the fan to rotate reversely and blow away the dust on the surface of the heat exchanger;
3. and the reverse rotation frequency of the fan is corrected according to the time interval of the unit entering the dust removal mode, so that the dust removal effect is ensured.
Thereby guaranteeing the dust removal effect and the heat exchange efficiency of the elevator group.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention 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 solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (12)
1. A unit dust removal control method is characterized by comprising the following steps:
acquiring operation parameters of a unit, and judging whether the operation parameters meet preset conditions or not;
triggering to execute a dust removal operation after the operation parameters meet preset conditions;
correcting the operating frequency of the fan based on a preset correction strategy to obtain the corrected operating frequency, wherein the method comprises the following steps: determining a frequency correction value based on a preset correction strategy; the corrected operating frequency is obtained by the following formula: setting the corrected running frequency as a preset initial frequency plus the frequency correction value; wherein, the running frequency of the fan in the first dust removal operation is a preset initial frequency; determining the frequency correction value based on the preset correction strategy comprises: determining the frequency correction value based on the interval time of two adjacent dust removal operations, wherein the frequency correction value comprises the following steps: determining a frequency correction value according to the interval time between the current dust removal operation and the previous dust removal operation; wherein the longer the interval time is, the smaller the frequency correction value is; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation.
2. The method of claim 1, wherein the operating parameters of the assembly include at least one of:
compressor discharge pressure, compressor suction pressure, compressor current.
3. The method of claim 1, wherein determining whether the operating parameter meets a predetermined condition comprises:
determining whether the unit is in a cooling mode or a heating mode;
if the unit is in a refrigeration mode, judging whether at least one of the operation parameters is higher than a threshold value corresponding to the parameter, if so, judging that the operation parameters meet preset conditions;
and if the unit is in the heating mode, judging whether at least one of the operation parameters is lower than a threshold corresponding to the parameter, and if so, judging that the operation parameters meet preset conditions.
4. The method of claim 1, wherein triggering performance of a dust removal operation comprises:
triggering the fan to reversely rotate; and the number of the first and second groups,
and controlling the compressor and the throttling part of the unit to stop running.
5. The method of claim 1, wherein determining a frequency correction value based on a preset correction strategy comprises:
determining that the current dust removal operation is the dust removal operation of the second time after the unit is started;
determining a frequency correction value corresponding to the number of times of the dust removal operation; wherein the frequency correction value is larger as the number of times is larger.
6. The utility model provides a unit dust removal controlling means which characterized in that includes:
the acquisition module is used for acquiring the operation parameters of the unit;
the judging module is used for judging whether the operation parameters meet preset conditions or not;
the dust removal module is used for triggering and executing dust removal operation after the operation parameters meet preset conditions;
the correction module is used for correcting the operating frequency of the fan based on a preset correction strategy to obtain the corrected operating frequency, and comprises: a correction value determining unit configured to determine a frequency correction value based on a preset correction strategy, wherein determining the frequency correction value based on the preset correction strategy comprises: determining the frequency correction value based on the interval time of two adjacent dust removal operations, specifically for: determining a frequency correction value according to the interval time between the current dust removal operation and the previous dust removal operation; wherein the longer the interval time is, the smaller the frequency correction value is; a correction calculation unit, configured to obtain the corrected operating frequency according to the following formula: setting the corrected running frequency as a preset initial frequency plus the frequency correction value; wherein, the running frequency of the fan in the first dust removal operation is a preset initial frequency; and controlling the fan to operate according to the corrected operating frequency so as to execute the current dust removal operation.
7. The apparatus of claim 6, wherein the operating parameters of the assembly include at least one of:
compressor discharge pressure, compressor suction pressure, compressor current.
8. The apparatus of claim 7, wherein the determining module comprises:
the mode confirming unit is used for confirming that the unit is in a cooling mode or a heating mode;
the first judgment unit is used for judging whether at least one of the operation parameters is higher than a threshold value corresponding to the parameter when the unit is in a refrigeration mode, and if so, judging that the operation parameters meet preset conditions;
and the second judgment unit is used for judging whether at least one of the operation parameters is lower than a threshold corresponding to the parameter when the unit is in the heating mode, and if so, judging that the operation parameters meet preset conditions.
9. The apparatus of claim 6,
the dust removal module is specifically used for triggering the fan to reversely rotate; and controlling the compressor and the unit throttling part to stop running.
10. The apparatus of claim 6,
the correction value determining unit is specifically used for determining that the current dust removal operation is the dust removal operation of the second time after the unit is started; determining a frequency correction value corresponding to the number of times of the dust removal operation; wherein the frequency correction value is larger as the number of times is larger.
11. An assembly comprising the assembly dusting control device of any of claims 6 to 10.
12. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, carries out the method according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111637514A (en) * | 2020-06-09 | 2020-09-08 | 内蒙古星空能源发展有限公司 | Winter geothermal multi-energy complementary heat pump heating system and method for northern severe cold area |
| CN115235155A (en) * | 2022-08-25 | 2022-10-25 | 长沙中谷智能设备制造有限公司 | Intelligent cooling system of vending machine and control method |
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| CN105202695A (en) * | 2015-09-07 | 2015-12-30 | Tcl空调器(中山)有限公司 | Dust removal control method and device for heat exchanger of outdoor unit of air conditioner |
| CN109253500A (en) * | 2018-08-31 | 2019-01-22 | 广东美的制冷设备有限公司 | The dust detection method of air-conditioner outdoor unit, air conditioner and air-conditioner outdoor unit |
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| JPS62129631A (en) * | 1985-11-27 | 1987-06-11 | Mitsubishi Electric Corp | Air conditioner |
| CN104279150B (en) * | 2013-07-10 | 2018-05-01 | 珠海格力电器股份有限公司 | Air conditioner compressor reversal detection method and device |
| CN105546751B (en) * | 2016-01-04 | 2018-04-10 | 广东美的暖通设备有限公司 | Air-conditioner control method and air conditioner |
| CN106091291B (en) * | 2016-07-21 | 2019-04-30 | 广东美的制冷设备有限公司 | A kind of air-conditioning air volume self compensation control method, control system and air-conditioning |
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| CN105202695A (en) * | 2015-09-07 | 2015-12-30 | Tcl空调器(中山)有限公司 | Dust removal control method and device for heat exchanger of outdoor unit of air conditioner |
| CN109253500A (en) * | 2018-08-31 | 2019-01-22 | 广东美的制冷设备有限公司 | The dust detection method of air-conditioner outdoor unit, air conditioner and air-conditioner outdoor unit |
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