CN111457544A - Air conditioner operation method and air conditioner - Google Patents
Air conditioner operation method and air conditioner Download PDFInfo
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- CN111457544A CN111457544A CN202010314705.6A CN202010314705A CN111457544A CN 111457544 A CN111457544 A CN 111457544A CN 202010314705 A CN202010314705 A CN 202010314705A CN 111457544 A CN111457544 A CN 111457544A
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- temperature
- air conditioner
- frequency
- compressor
- condenser
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
Abstract
The invention provides an air conditioner operation method, which comprises the following steps: acquiring the ambient temperature outside the air conditioner, the air temperature of the area where the air conditioner is located, the outlet temperature of the condenser and the temperature of the middle part of the condenser pipe; judging whether the outside environment temperature is greater than or equal to a first preset value or not, and judging whether the difference value between the outside environment temperature and the air temperature of the area where the air conditioner is located is greater than or equal to a second preset value or not; if both, the frequency of the compressor is adjusted according to the temperature of the middle part of the condenser pipe, and if not, the frequency of the compressor is adjusted according to the outlet temperature of the condenser. The method ensures the reliability of the operation of the air conditioner, and improves the frequency of the compressor, thereby improving the user experience.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner operation method and an air conditioner.
Background
When the existing air conditioner is operated, heat can be generated and dissipated, when the ambient temperature outside the air conditioner is too high, the condenser can be poor in heat dissipation, and under the situation, if the frequency of the compressor is high, the exhaust is high, high pressure exceeds the standard, the pressure is too high, a pipe is broken, or faults or dangers such as desynchronization of the compressor occur. Therefore, the frequency of the compressor is generally reduced for air conditioner operation reliability design. Then, the compressor operation frequency is too low, which may result in insufficient cooling capability of the air conditioner, thereby making the user experience poor.
Disclosure of Invention
The present invention is directed to an air conditioner and a method for operating the same, which at least partially solve the above technical problems.
In order to solve the above problems, an aspect of the present invention provides an air conditioner operation method, including: acquiring the ambient temperature outside the air conditioner, the air temperature of the area where the air conditioner is located, the outlet temperature of the condenser and the temperature of the middle part of the condenser pipe; judging whether the outside environment temperature is greater than or equal to a first preset value or not, and judging whether the difference value between the outside environment temperature and the air temperature of the area where the air conditioner is located is greater than or equal to a second preset value or not; if both, the frequency of the compressor is adjusted according to the temperature of the middle part of the condenser pipe, and if not, the frequency of the compressor is adjusted according to the outlet temperature of the condenser.
From this, under the original condition according to the mode of condenser outlet temperature regulation compressor frequency, increased according to the mode of the temperature regulation compressor frequency at condenser pipe middle part, according to outside ambient temperature and difference in temperature, changeable frequency control mode of adjusting the compressor satisfies the refrigeration operation under the various environment of air conditioner, promotes the reliability of air conditioner operation to promote user experience.
Optionally, adjusting the frequency of the compressor according to the temperature of the middle portion of the condenser tube comprises: obtaining the condensing pressure of the condenser according to the temperature of the middle part of the condenser tube; raising the frequency of the compressor without exceeding the condensing pressure.
From this, through obtaining condenser pipe middle part temperature to the condensing pressure of true reaction condenser can promote the compressor frequency under the earlier stage that does not exceed the pressure standard requirement, promotes the refrigeration volume, thereby has promoted user's experience.
Optionally, the method further comprises: judging whether the difference between the outside environment temperature and the air temperature of the area where the air conditioner is located is larger than or equal to a third preset value, wherein the third preset value is larger than the second preset value; if so, stopping increasing the frequency of the compressor, or reducing the frequency of the compressor, or closing the air conditioner.
Optionally, judging whether a difference value between the outside environment temperature and the first preset value is greater than or equal to a fourth preset value; if so, stopping increasing the frequency of the compressor, or reducing the frequency of the compressor, or closing the air conditioner.
Therefore, the real actions of forbidding frequency increasing, frequency reducing and stopping are realized under the condition that the outside environment temperature is overhigh or the heat dissipation condition is poor by detecting the outside environment temperature of the air conditioner in real time, so that the operation reliability of the air conditioner is improved.
Optionally, the value range of the second preset value is 5-7 ℃.
Optionally, the first preset value is in a range of 43 to 44 ℃.
Optionally, the frequency of the boosted compressor is in the range of 8-16Hz without exceeding said condensation pressure.
Therefore, the range of each preset value and the adjusting range of the frequency of the compressor are reasonably designed, so that the refrigerating operation of the air conditioner can be controlled more accurately, and better experience is provided for users.
Optionally, obtaining the temperature of the middle of the condenser tube comprises: a bulb is arranged at the condenser U tube to detect the temperature of the middle of the condenser tube.
Therefore, the temperature sensing bulb is arranged at the U pipe of the condenser, and the obtained temperature in the middle of the condenser pipe can reflect the condensation temperature more truly, so that more real condensation pressure is obtained.
Optionally, in the case that the outside ambient temperature is less than the first preset value, the compressor frequency is not increased.
Optionally, in a case where a difference between the outside ambient temperature and an air temperature of an area where the air conditioner is located is less than the second preset value, the compressor frequency is not increased.
Therefore, the adjusting resource of the air conditioner can be saved.
Another aspect of the present invention provides an air conditioner including a computer-readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor. The air conditioner has the same advantages as the connecting block, and the description is omitted.
Drawings
Fig. 1 is a flowchart schematically illustrating an air conditioner operation method according to a first embodiment of the present invention;
fig. 2 is a flowchart schematically illustrating an air conditioner operation method according to a second embodiment of the present invention;
fig. 3 schematically shows a flowchart of an air conditioner operation method according to a third embodiment of the present invention.
Detailed Description
In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides an air conditioner operation method under the high temperature of the outside environment, aiming at improving the operation frequency of a compressor and avoiding the condition that the frequency of the compressor is reduced to be too low on the premise of considering the operation pressure. The refrigeration capacity and the user experience are improved, and specific embodiments are introduced below.
Example one
Fig. 1 schematically shows a flowchart of an air conditioner operation method according to a first embodiment of the present invention, and as shown in fig. 1, the method may include operations S101 to S104, for example.
S101, obtaining the outside environment temperature of the air conditioner, the air temperature of the area where the air conditioner is located, the outlet temperature of the condenser and the temperature of the middle of the condenser pipe.
In a feasible mode of the embodiment, a temperature bulb can be arranged on the outer side of the air conditioner to detect the outside environment temperature, a temperature bulb can be arranged at the outlet of the condenser to detect the outlet temperature of the condenser, and a temperature bulb can be arranged at the U pipe of the condenser to detect the temperature of the middle part of the pipe of the condenser. The specific position of the U pipe of the condenser where the temperature sensing bulb is arranged can be used for finding out the closest condensation temperature point corresponding to the condensation pressure by arranging the thermocouple. The air temperature of the area where the air conditioner is located may be obtained, for example, from a database of weather condition storage data, and the present invention is not limited thereto.
S102, judging whether the outside environment temperature is larger than or equal to a first preset value or not, and judging whether the difference value between the outside environment temperature and the air temperature of the area where the air conditioner is located is larger than or equal to a second preset value or not.
In a feasible manner of this embodiment, the first preset value ranges from 43 to 44 ℃, for example, 44 ℃, and the standard requirement is that the outside ambient temperature of the high-temperature cooling capacity is 43 ℃. The difference Δ t between the outside ambient temperature and the air temperature of the area where the air conditioner is located may range, for example, from 5 to 7 ℃. The delta t is used for judging whether the outer side condenser is arranged in a place with bad heat dissipation condition or not, and distinguishing the air conditioner which is arranged in a common or better heat dissipation and ventilation mode.
In the free-frequency mode of operation, the maximum compressor frequency varies with outside ambient temperature (temperature-frequency curve). When the outside ambient temperature of air conditioner is less than first default, the radiator radiating effect is good, and condensing pressure is low, and the compressor frequency sets up higher, and refrigeration effect is good, need not to promote the frequency again. After the outside ambient temperature of the air conditioner exceeds the first preset value, the frequency of the compressor is set to be too low in a program for the reliability of the operation of the air conditioner.
When the difference between the outside environment temperature and the air temperature of the area where the air conditioner is located is smaller than the second preset value, the heat dissipation and ventilation effect of the condenser is general or good, so that the compressor has high frequency and good refrigeration effect, and the frequency does not need to be increased. When the difference between the outside environment temperature and the air temperature of the area where the air conditioner is located is not smaller than the second preset value, the heat dissipation and ventilation effects of the condenser are poor, the air conditioner is installed in a place with a bad heat dissipation condition, and the frequency of the compressor is set too low in the process for the reliability of the operation of the air conditioner.
Therefore, what kind of situation the air conditioner is needs to be judged according to the ambient temperature outside the air conditioner at this time, so as to better adjust the frequency of the air conditioner compressor.
S103, when the ambient temperature is greater than or equal to a first preset value and the difference between the outside ambient temperature and the air temperature of the area where the air conditioner is located is greater than or equal to a second preset value, the frequency of the compressor is adjusted according to the temperature of the middle of the condenser pipe.
When the ambient temperature is greater than or equal to the first preset value and the difference between the outside ambient temperature and the air temperature of the area where the air conditioner is located is greater than or equal to the second preset value, the frequency of compression is set too low for reliability. Although the reliability of the air conditioner is guaranteed, the refrigeration requirement cannot be met, and the image user experience is achieved. The foregoing has mentioned: the specific position of the U pipe of the condenser where the temperature sensing bulb is arranged can be used for finding out the closest condensation temperature point corresponding to the condensation pressure by arranging the thermocouple. This indicates that the temperature of the middle of the condenser tube obtained more truly reflects the condensing temperature of the condenser, i.e., the condensing pressure can be obtained. In this case, the frequency of the compressor can be adjusted according to the temperature in the middle of the condenser tube. Specifically, under the condition of not exceeding the condensing pressure, the frequency of the compressor is increased to increase the refrigerating capacity of the air conditioner, so that the refrigerating requirement of a user is met under the condition of ensuring the operation reliability of the air conditioner.
In a feasible manner of this embodiment, the frequency range of the raised compressor is 8-16Hz without exceeding the condensing pressure, and the specific value may be different according to different configuration models.
If the ambient temperature outside the air conditioner cannot satisfy the above two conditions (the ambient temperature is greater than or equal to the first preset value and the difference between the ambient temperature outside and the air temperature of the area where the air conditioner is located is greater than or equal to the second preset value), operation S104 is performed.
And S104, adjusting the frequency of the compressor according to the outlet temperature of the condenser.
The condenser pipe middle part temperature has been obtained in real time to this embodiment, can be accurate true reaction condenser's condensing pressure, fully promote the compressor frequency under the earlier stage that does not exceed the pressure standard requirement, promote the refrigerating output to user's experience has been promoted. And, under the original condition according to the mode of condenser outlet temperature regulation compressor frequency, increased according to the mode of the temperature regulation compressor frequency in condenser pipe middle part, according to outside ambient temperature and difference in temperature, changeable frequency control mode of adjusting the compressor satisfies the refrigeration operation under the various environment of air conditioner, promotes the reliability of air conditioner operation to promote user experience.
Example two
Fig. 2 schematically shows a flowchart of an air conditioner operation method according to a second embodiment of the present invention. Compared with the first embodiment, the method has the advantages that in addition to the operation, the additional function is added. As shown in fig. 2, the method may include, for example, S201 to S202.
S201, judging whether the difference value between the outside environment temperature and the air temperature of the area where the air conditioner is located is larger than or equal to a third preset value, wherein the third preset value is larger than the second preset value.
When the difference value is larger than the third preset value, the heat dissipation effect of the air conditioner condenser is in a poor state, and faults and even dangers are possible. At this time, the air conditioner performs operation S202.
S202, stopping increasing the frequency of the compressor, or reducing the frequency of the compressor, or closing the air conditioner.
Through the operation of S202, the air conditioner can be prevented from being in failure or even dangerous, and the running reliability of the air conditioner is ensured.
In this embodiment, on the basis of the first embodiment, the judgment logic is further added to judge that the air conditioner is in a worse heat dissipation condition, and when the air conditioner is in the condition, the frequency of the compressor is stopped to be increased or reduced or the air conditioner is turned off according to actual conditions, so that the air conditioner is prevented from being in a fault or even dangerous state, and the reliability of the operation of the air conditioner is further ensured.
Please refer to the first embodiment for details of the present embodiment.
EXAMPLE III
Fig. 3 schematically shows a flowchart of an air conditioner operation method according to a third embodiment of the present invention. Compared with the first embodiment, the method has the advantages that in addition to the operation, the additional function is added. As shown in fig. 3, the method may include, for example, S301 to S302.
S301, judging whether the difference value between the outside environment temperature and the first preset value is larger than or equal to a fourth preset value.
When the outside environment temperature is much higher than the first preset value, the air conditioner may malfunction or even be dangerous. At this time, the air conditioner performs operation S302. The fourth preset value can be set according to actual requirements, and the invention is not limited.
S302, stopping increasing the frequency of the compressor, or reducing the frequency of the compressor, or closing the air conditioner.
Through the operation of S302, the air conditioner can be prevented from being broken down and even dangerous, and the running reliability of the air conditioner is ensured.
On the basis of the first embodiment and the second embodiment, the present embodiment further adds a judgment logic to judge whether the outside ambient temperature is continuously increased to result in being much greater than the outside ambient temperature corresponding to the standard required high-temperature refrigerating capacity, and when the actual outside ambient temperature is much greater than the outside ambient temperature corresponding to the standard required high-temperature refrigerating capacity, stops increasing the frequency of the compressor, or reduces the frequency of the compressor, or shuts down the air conditioner, so as to avoid the air conditioner from being in failure or even dangerous, and further ensure the reliability of the operation of the air conditioner.
Please refer to the first embodiment for details of the present embodiment.
Example four
The present embodiment provides an air conditioner, which includes a computer readable storage medium storing a computer program and a processor, wherein the computer program is read and executed by the processor to implement the methods of the first embodiment and the second embodiment. Please refer to the first embodiment and the second embodiment for the advantages of the air conditioner provided in this embodiment, which are not described herein again.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. An air conditioner operation method, comprising:
acquiring the ambient temperature outside the air conditioner, the air temperature of the area where the air conditioner is located, the outlet temperature of the condenser and the temperature of the middle part of the condenser pipe;
judging whether the outside environment temperature is greater than or equal to a first preset value or not, and judging whether the difference value between the outside environment temperature and the air temperature of the area where the air conditioner is located is greater than or equal to a second preset value or not;
if both, the frequency of the compressor is adjusted according to the temperature of the middle part of the condenser pipe, and if not, the frequency of the compressor is adjusted according to the outlet temperature of the condenser.
2. The method of claim 1, wherein adjusting the frequency of the compressor based on the temperature of the middle portion of the condenser tube comprises:
obtaining the condensing pressure of the condenser according to the temperature of the middle part of the condenser tube;
raising the frequency of the compressor without exceeding the condensing pressure.
3. The method of claim 1, further comprising:
judging whether the difference between the outside environment temperature and the air temperature of the area where the air conditioner is located is larger than or equal to a third preset value, wherein the third preset value is larger than the second preset value;
if so, stopping increasing the frequency of the compressor, or reducing the frequency of the compressor, or closing the air conditioner.
4. The method of claim 1, further comprising:
judging whether the difference value between the outside environment temperature and the first preset value is larger than or equal to a fourth preset value or not;
if so, stopping increasing the frequency of the compressor, or reducing the frequency of the compressor, or closing the air conditioner.
5. The method according to claim 1 or 3, wherein the second predetermined value is in the range of 5-7 ℃.
6. The method of claim 1, wherein the first predetermined value is in a range of 43-44 ℃.
7. The method of claim 2, wherein the frequency of the boosted compressor is in the range of 8-16Hz without exceeding the condensing pressure.
8. The method of claim 1, wherein obtaining the temperature of the middle of the condenser tube comprises:
a bulb is arranged at the condenser U tube to detect the temperature of the middle of the condenser tube.
9. The method of claim 1, wherein in the event that the outside ambient temperature is less than the first preset value, the compressor frequency is not increased; and under the condition that the difference value between the outside environment temperature and the air temperature of the area where the air conditioner is located is smaller than the second preset value, the frequency of the compressor is not increased.
10. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program being read and executed by the processor to implement the method of any one of claims 1 to 9.
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