CN115899942A - Air conditioner water blowing prevention control method and device and air conditioner - Google Patents
Air conditioner water blowing prevention control method and device and air conditioner Download PDFInfo
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 184
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000007664 blowing Methods 0.000 title claims abstract description 43
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- 238000005057 refrigeration Methods 0.000 description 7
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Abstract
The invention relates to the technical field of air conditioners, in particular to an air conditioner anti-blowing control method, an air conditioner anti-blowing control device and an air conditioner. The air conditioner water blowing prevention control method comprises the following steps: acquiring the condensate water generating speed of a unit area and the temperature difference value between the return air side temperature of the indoor unit and the set temperature; and adjusting the frequency of the compressor according to the condensate water generation speed and the temperature difference value of the unit area, wherein the frequency of the compressor is in negative correlation with the condensate water generation speed and in positive correlation with the temperature difference value. The air conditioner water blowing prevention control method, the air conditioner water blowing prevention control device and the air conditioner can solve the problem of air conditioner water blowing from the source and reduce the risk of water blowing of the indoor unit.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioner anti-blowing control method, an air conditioner anti-blowing control device and an air conditioner.
Background
As a commonly used household appliance, an air conditioner is mainly used for adjusting temperature/humidity to meet the needs of people.
The air conditioner can produce a certain amount of comdenstion water at refrigeration in-process, and when indoor humidity was too high, the production of comdenstion water can greatly increased, however, the drainage ability of air conditioner itself is limited, when indoor side humidity is higher and air conditioner air speed is great, produces the phenomenon that the air conditioner blew off the comdenstion water easily, because the air conditioner is inside can breed partly bacterium, the propagation that the comdenstion water that blew off can cause the bacterium will destroy indoor sanitary environment, influences user's experience.
Disclosure of Invention
The invention aims to provide an air conditioner water blowing prevention control method, an air conditioner water blowing prevention control device and an air conditioner, and aims to solve the technical problem that the air conditioner in the prior art is easy to blow water.
The invention provides an air conditioner anti-blowing control method, which comprises the following steps:
acquiring the condensate water generating speed of a unit area and the temperature difference value between the return air side temperature of the indoor unit and the set temperature;
and adjusting the frequency of a compressor according to the condensate water generating speed per unit area and the temperature difference value, wherein the frequency of the compressor is in negative correlation with the condensate water generating speed and in positive correlation with the temperature difference value.
Compared with the prior art, the invention has the beneficial effects that:
the air conditioner anti-blowing control method provided by the invention comprehensively considers the output requirements of the condensate water generation speed and the refrigerating capacity of the unit area, the frequency of the compressor is accurately regulated, the higher the condensate water generation speed of the unit area is, the higher the blowing risk of the current indoor unit is, when the condensate water generation speed of the unit area is higher, the compressor frequency is properly regulated and reduced on the basis of considering the temperature difference value, the condensate water generation speed of the unit area can be reduced, the condensate water generation amount in a short time is reduced, the air conditioner blowing problem can be solved from the source, and the blowing risk of the indoor unit is reduced.
As an implementable embodiment, the method further comprises:
and adjusting the rotating speed of a fan of the indoor unit according to the generating speed of the condensed water in the unit area, wherein the rotating speed of the fan is inversely related to the generating speed of the condensed water in the unit area.
The air conditioner has the beneficial effects that after the air speed is reduced, bacteria in the air conditioner are not easy to blow out, the indoor sanitary environment is protected, and the propagation of the bacteria is reduced.
As an implementable embodiment, the method comprises:
if the condensate water generating speed in the unit area is less than a first speed threshold, controlling the frequency of the compressor to be adjusted downwards by a first amplitude when the temperature difference value is less than or equal to a first temperature difference threshold; when the temperature difference value is larger than the first temperature threshold value and smaller than or equal to a second temperature difference threshold value, controlling the frequency of the compressor to maintain a current frequency value; when the temperature difference value is larger than the second temperature difference threshold value, controlling the frequency of the compressor to be adjusted upwards by a second amplitude;
and/or if the speed of generating the condensed water in the unit area is greater than or equal to the first speed threshold and less than the second speed threshold, controlling the frequency of the compressor to be adjusted downwards by a third amplitude when the temperature difference value is less than or equal to the first temperature difference threshold, wherein the third amplitude is greater than the first amplitude; when the temperature difference value is larger than the first temperature threshold value and smaller than or equal to the second temperature threshold value, controlling the frequency of the compressor to be adjusted downwards by a fourth amplitude, wherein the fourth amplitude is smaller than the third amplitude; when the temperature difference value is larger than the second temperature difference threshold value, controlling the compressor frequency to maintain a current frequency value;
and/or if the condensate water generating speed per unit area is greater than or equal to the third speed threshold, controlling the frequency of the compressor to be adjusted downwards by a fifth amplitude when the temperature difference value is less than or equal to the first temperature difference threshold, wherein the fifth amplitude is greater than the third amplitude; when the temperature difference value is larger than the first temperature difference threshold value and smaller than or equal to the second temperature difference threshold value, controlling the frequency of the compressor to be adjusted downwards by a sixth amplitude, wherein the sixth amplitude is larger than the fourth amplitude, and the sixth amplitude is smaller than the fifth amplitude; and when the temperature difference value is larger than the temperature difference threshold value, controlling the frequency of the compressor to be adjusted downwards by a seventh amplitude, wherein the seventh amplitude is smaller than the sixth amplitude.
The compressor frequency control method has the beneficial effects that the purposes of comprehensively considering the output requirements of the condensate water generation speed and the refrigerating output in unit area and accurately regulating and controlling the compressor frequency can be realized.
As an embodiment, the acquiring the condensed water generating speed per unit area includes:
acquiring the operation air quantity, the moisture content of the return air side and the moisture content of the air outlet side of the indoor unit;
calculating the generation amount of condensed water according to the operation air volume, the moisture content of the return air side and the moisture content of the air outlet side, wherein the operation air volume and the moisture content of the return air side are positively correlated with the generation amount of the condensed water, and the moisture content of the air outlet side is negatively correlated with the generation amount of the condensed water;
and calculating the condensate water generating speed of the unit area according to the condensate water generating amount, the windward area of the evaporator, the indoor unit form and the capacity value, wherein the indoor unit form comprises a wall-mounted unit, a ducted air conditioner and a ceiling unit, and the capacity value is inversely related to the condensate water generating speed of the unit area.
The beneficial effects lie in, can reflect the risk degree of blowing water better to carry out accurate control to the compressor, when reducing the risk of blowing water, can also guarantee user's comfort level better.
As an embodiment, the calculation formula of the condensed water generation amount is as follows:
m＝q*(B-A)*ρ，
wherein m represents the condensed water generation amount, q represents the operation air volume, B represents the return air side moisture content, a represents the outlet air side moisture content, and ρ represents the air density.
The method has the beneficial effects that the condensate water generation speed calculated according to the formula is high in precision.
As an embodiment, the calculation formula of the condensed water generation speed per unit area is as follows:
wherein n represents the condensed water generating speed per unit area, S represents the windward area of the evaporator, and lambda represents a correction parameter value; the lambda value is related to the indoor machine form, and the lambda value is positively related to the indoor machine function value.
The method has the beneficial effects that the condensate water generation speed calculated according to the formula is high in precision.
As an implementation manner, the adjusting the indoor unit fan rotation speed according to the condensed water generation speed per unit area comprises:
and if the duration that the condensate water generation speed in unit area is greater than the tenth speed threshold exceeds the preset duration, reducing the rotating speed of the fan.
The beneficial effect is that the water blowing problem can be relieved and even eliminated.
The invention provides an air conditioner anti-blowing control device, comprising:
the system comprises an acquisition module, a control module and a control module, wherein the acquisition module is used for acquiring the condensate water generation speed in unit area and the temperature difference value between the return air side temperature of an indoor unit and a set temperature;
and the adjusting module is used for adjusting the frequency of the compressor according to the condensate water generating speed per unit area and the temperature difference value, wherein the frequency of the compressor is in negative correlation with the condensate water generating speed and in positive correlation with the temperature difference value.
The air conditioner provided by the invention comprises a computer readable storage medium and a processor, wherein the computer readable storage medium is used for storing a computer program, and the computer program is read by the processor and runs to realize the method.
The air conditioner anti-blow-out control device and the air conditioner provided by the invention have the same beneficial effects with the air conditioner anti-blow-out control mode.
In one embodiment, a wet bulb thermal bulb is installed on the air return side of the indoor unit of the air conditioner, and a dry bulb thermal bulb is installed on the air outlet side of the indoor unit of the air conditioner.
The method has the beneficial effects that the moisture content of the return air side and the moisture content of the air outlet side can be measured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a first schematic flowchart of an air conditioner anti-blow-out control method according to an embodiment of the present invention;
fig. 2 is a second schematic flowchart of an air conditioner anti-blow-out control method according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an air conditioner anti-blow-off control device according to an embodiment of the present invention.
Description of reference numerals:
301-an obtaining module; 302-a regulation module.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The present invention will be described in further detail below with reference to specific embodiments and with reference to the attached drawings.
Fig. 1 is a schematic flowchart of an air conditioner anti-blow-by control method according to an embodiment of the present invention, where the method includes:
s102, acquiring the condensed water generating speed of a unit area and the temperature difference value between the return air side temperature of the indoor unit and the set temperature.
The water blowing risk of the air conditioner is not only related to the generation speed of the condensed water, but also related to the windward area of the evaporator, so that the generation speed of the condensed water in a unit area relative to the windward side of the evaporator is used as a regulation reference, and the current water blowing risk of the indoor unit can be accurately reflected. The unit area of the windward side of the evaporator may be the original unit area or a corrected value of the unit area.
And S104, adjusting the frequency of the compressor according to the condensate water generating speed and the temperature difference value, wherein the frequency of the compressor is in negative correlation with the condensate water generating speed and in positive correlation with the temperature difference value.
The production speed of the condensed water is related to the temperature Tin of the air return side and the temperature of the pipe, the temperature of the pipe is influenced by the frequency of the compressor, the temperature of the pipe is low when the frequency is high, and the temperature of the pipe is high when the frequency is low, so that the temperature of the pipe can be controlled by adjusting the frequency of the compressor, and the amount of the condensed water can be further controlled; and (3) controlling the system output by the compressor frequency, judging whether the system output meets the requirement or not through the temperature difference value delta T of the return air side temperature Tin and the set temperature Tset, namely delta T = Tin-Tset, adjusting the compressor frequency according to the requirement, and controlling the refrigeration output of the system. That is to say, the output requirements of the condensed water generation speed and the refrigerating capacity of the unit area are comprehensively considered, the frequency of the compressor is accurately regulated and controlled, the faster the condensed water generation speed of the unit area is, the higher the water blowing risk of the current indoor unit is indicated, when the condensed water generation speed of the unit area is faster, the compressor frequency is properly adjusted downwards on the basis of considering the temperature difference value, the condensed water generation speed of the unit area can be reduced, the amount of the condensed water generated in a short time is reduced, the air conditioner water blowing problem can be solved from the source, and the water blowing risk of the indoor unit is reduced; that is to say, this embodiment can reduce the air conditioner through air conditioning system self and blow the water phenomenon, especially to the great extreme operating mode of humidity, and the effect is showing.
Specifically, the following method can be used to regulate the frequency of the compressor, and specifically, see table 1 below:
a1, if the comdenstion water production speed of unit area is less than first speed threshold, then indicate that the comdenstion water production speed is relatively slower this moment, and the risk of blowing does not have, and the refrigeration demand is satisfied in the main consideration, carries out normal regulation and control to compressor frequency according to the difference in temperature: if the temperature difference value is smaller than or equal to the first temperature difference threshold value, the system refrigerating capacity is larger than the refrigerating requirement at the moment, the output needs to be reduced, and the frequency of the compressor is controlled to be reduced by a first amplitude; if the temperature difference value is larger than the first temperature threshold value and smaller than or equal to the second temperature difference threshold value, the refrigerating capacity of the system is equivalent to the refrigerating requirement at the moment, and the frequency of the compressor is controlled to maintain the current frequency value; if the temperature difference value is larger than the second temperature difference threshold value, the refrigerating capacity of the system is smaller than the refrigerating requirement, and under the condition that the current condensate water is less, the frequency of the compressor can be controlled to be adjusted upwards by a second amplitude, so that the output is increased to meet the refrigerating requirement. Wherein, the value range of the first speed threshold value can be set to be 40-60 g/min, preferably 50g/min; the first temperature difference threshold value can be set to be-1 ℃, and the second temperature difference threshold value can be set to be 3 ℃; the first amplitude may be set to 1Hz and the second amplitude may be set to 1Hz.
A2, if the condensate water generation speed of the unit area is greater than or equal to the first speed threshold and smaller than the second speed threshold, the condensate water generation speed is relatively high, a certain water blowing risk exists, the system output can be properly reduced by combining the refrigeration requirement, and the condensate water generation speed is controlled: if the temperature difference value is less than or equal to the first temperature difference threshold value, the refrigerating capacity of the system is larger than the refrigerating requirement at the moment, the output needs to be reduced, the frequency of the compressor is controlled to be reduced by a third amplitude, and the third amplitude is set to be larger than the first amplitude so as to accelerate the reduction speed of the frequency of the compressor and slow down the generation speed of condensate water; if the temperature difference value is greater than the first temperature threshold and less than or equal to the second temperature threshold, the refrigerating capacity of the system is equivalent to the refrigerating requirement at the moment, the original compressor frequency can maintain the current frequency, but the condensate water is generated at a high speed, so that the compressor frequency needs to be controlled to reduce a fourth amplitude, and the fourth amplitude is set to be smaller than the third amplitude, so that the influence on the refrigerating effect is reduced on the basis of regulating the compressor frequency downwards, and the comfort level of a user is ensured; if the temperature difference value is greater than the second temperature difference threshold value, the refrigerating capacity of the system is smaller than the refrigerating requirement, the frequency of the compressor needs to be controlled to be adjusted upwards originally, however, the generating speed of the condensed water is high, the frequency of the compressor needs to be controlled to maintain the current frequency value, the generating speed of the condensed water is prevented from being further accelerated, meanwhile, the influence on the refrigerating effect is reduced, and the comfort level of a user is guaranteed. Wherein, the value range of the second speed threshold value can be set to 80-120 g/min, preferably 100g/min; the third amplitude may be set to 2Hz and the fourth amplitude may be set to 1Hz.
A3, if the condensate water production speed of the unit area is greater than or equal to a third speed threshold, the condensate water production speed is relatively too fast at the moment, a great water blowing risk exists, the system output can be reduced by combining the refrigeration requirement, and the condensate water production speed is controlled: if the temperature difference value is less than or equal to the first temperature difference threshold value, the refrigerating capacity of the system is larger than the refrigerating requirement at the moment, the output needs to be reduced, the frequency of the compressor is controlled to be reduced by a fifth amplitude, and the fifth amplitude is set to be larger than the third amplitude so as to further accelerate the reduction speed of the frequency of the compressor and slow down the generation speed of the condensed water; if the temperature difference value is larger than the first temperature difference threshold value and smaller than or equal to the second temperature difference threshold value, the refrigerating capacity of the system is equivalent to the refrigerating requirement, the original compressor frequency can maintain the current frequency, but the condensate water generation speed is too high, so that the compressor frequency needs to be controlled to be adjusted downwards to obtain a sixth amplitude, the sixth amplitude is set to be larger than the fourth amplitude so as to accelerate the reduction speed of the compressor frequency and slow down the condensate water generation capacity, and meanwhile, the sixth amplitude is set to be smaller than the fifth amplitude so as to reduce the influence on the refrigerating effect on the basis of adjusting the compressor frequency downwards and ensure the comfort level of a user; if the temperature difference value is greater than the temperature difference threshold value, it indicates that the refrigerating capacity of the system is smaller than the refrigerating requirement, the compressor frequency is required to be controlled to be adjusted upwards originally, however, the condensate water generating speed is too high, the compressor frequency is required to be controlled to be adjusted downwards to a seventh amplitude, the condensate water generating speed is prevented from being further accelerated, the seventh amplitude is set to be smaller than a sixth amplitude, the influence on the refrigerating effect is reduced on the basis of reducing the condensate water generating speed, and the comfort level of a user is guaranteed. Wherein, the value range of the third speed threshold value can be set to 80-120 g/min, preferably 100g/min; the fifth amplitude may be set to 3Hz, the sixth amplitude may be set to 2Hz, and the seventh amplitude may be set to 1Hz.
TABLE 1 relationship between compressor frequency and condensate water generation rate per unit area
In addition, the rotating speed of the fan of the indoor unit can be adjusted according to the generating speed of the condensed water in the unit area, wherein the rotating speed of the fan is inversely related to the generating speed of the condensed water in the unit area, namely when the generating speed of the condensed water in the unit area is too high, the condensed water in the water tank is generally more, and at the moment, the rotating speed of the fan is correspondingly reduced so as to reduce the airflow speed near the water receiving tray and relieve or even eliminate the water blowing problem, so that bacteria in the air conditioner are not easy to blow out, the indoor sanitary environment is protected, the propagation of the bacteria is reduced, and the user experience is ensured; and the wind speed is reduced, and the condensed water generating speed can be reduced to a certain extent.
Specifically, if the duration that the condensate water generation speed per unit area is greater than the tenth speed threshold exceeds the preset duration, it indicates that the amount of condensate water accumulated in the water tank is too much at the moment, the rotating speed of the fan can be adjusted to be small, and the problem of water blowing is alleviated or even eliminated. Wherein, the value range of the tenth speed threshold value can be set to be 70-130 g/min, preferably 100g/min; the value range of the preset time t can be set to be 2-5 min, and 3min is preferred; the single reduction amplitude of the fan rotating speed is one gear, and the specific reference can be made to the following table 2. Of course, when the fan speed is already the lowest speed, the fan speed is not adjusted to be small, and the current lowest speed is maintained.
Fig. 2 is a schematic flowchart of a method of acquiring a condensed water generation speed per unit area in the present embodiment:
s202, obtaining the running air volume, the moisture content of the return air side and the moisture content of the air outlet side of the indoor unit.
The running air volume corresponding to each air gear of the indoor unit can be prestored to the control system in a prestored mode, and in the running process of the air conditioner, the current running air volume can be obtained by identifying the current running air gear of the indoor unit.
And S204, calculating the generation amount of condensed water according to the operation air volume, the moisture content of the return air side and the moisture content of the air outlet side, wherein the operation air volume and the moisture content of the return air side are positively correlated with the generation amount of the condensed water, and the moisture content of the air outlet side is negatively correlated with the generation amount of the condensed water.
The production amount of the condensed water is accelerated along with the increase of the operation air quantity, accelerated along with the increase of the moisture content of the air return side and slowed down along with the increase of the moisture content of the air outlet side, the operation air quantity, the moisture content of the air return side and the moisture content of the air outlet side are comprehensively considered, and the more accurate production amount of the condensed water can be calculated.
And S206, calculating the condensate water generating speed of the unit area according to the condensate water generating amount, the windward area of the evaporator, the indoor unit form and the capacity value, wherein the indoor unit form comprises a wall-mounted unit, an air duct machine and a ceiling machine, and the windward area and the capacity value of the evaporator are negatively correlated with the condensate water generating speed of the unit area.
In fact, the water blowing risk of the indoor unit is related to the internal structure, for example, the internal space of the wall-mounted unit is the most compact, the water blowing risk is high, the condensed water generation speed per unit area can be relatively increased, and when the amount of the generated condensed water is small, the generation of the condensed water is inhibited; the air duct of the air duct machine is long, the phenomenon of water blowing is not easy to occur, the generation speed of condensed water in unit area can be relatively reduced, and when the generated amount of the condensed water is large, the generation of the condensed water is restrained. The water blowing risk of the indoor unit is also related to the capacity value of the indoor unit, for the indoor unit in the same form, the smaller the capacity value is, the higher the water blowing risk is, the condensate water generation speed per unit area can be relatively increased, and when the condensate water generation amount is smaller, the condensate water generation is restrained; correspondingly, the bigger the capacity value is, the lower the risk of blowing water is, the lower the condensed water production speed of unit area can be relatively reduced, and when the condensed water production amount is larger, the production of the condensed water is restrained again.
Specifically, the condensed water generation amount may be calculated according to the following formula: m = q (B-ase:Sub>A) ×, where m represents ase:Sub>A condensate water generation amount, q represents an operation air amount, B represents ase:Sub>A return air side moisture content, ase:Sub>A represents an outlet air side moisture content, and ρ represents an air density (since an actual ambient temperature interval is small and the air density does not change much in this interval, ρ may be set to 1.2kg/m 3 ) And the accuracy of the condensate water generation amount calculated according to the formula is high.
The condensed water generation speed per unit area can be calculated according to the following formula:
the method comprises the following steps of calculating a condensation water generation speed value of an indoor unit according to a formula, calculating a lambda value of the indoor unit according to the lambda value, and calculating the condensation water generation speed value of the unit area according to the lambda value. The lambda value can correct the windward area of the evaporator, for example, the space inside the wall hanging machine is the most compact, the risk of blowing water is high, and the corresponding lambda value can be set to be a small value so as to correct the unit area of the windward side of the evaporator to be a relatively large value; the air duct of the ducted air conditioner is long, the phenomenon of water blowing is not prone to occurring, the corresponding lambda value can be set to be a large value, the unit area of the windward side of the evaporator is corrected to be a relatively small value, and specifically, a proper lambda value can be selected by referring to the following table 1.
TABLE 2 evaporator area correction
The following table 3 can be queried according to the wet bulb temperature of the return air side to obtain the moisture content of the return air side; and inquiring the following table 3 according to the wet bulb temperature of the air outlet side to obtain the moisture content of the air outlet side. In the refrigeration mode, the air outlet side is saturated humidity air, so that the dry bulb temperature of the air outlet side is the wet bulb temperature of the air outlet side.
TABLE 3 Wet bulb temperature and moisture content corresponding table
TABLE 4 relationship between the indoor unit fan speed and the amount of condensate water
It should be noted that, the step S102 may be executed once every preset interval duration (e.g., 30S), that is, the condensed water generating speed per unit area is updated once every preset interval duration, and accordingly, the compressor frequency and the fan speed are regulated once every preset interval duration.
Fig. 3 is a view illustrating an air conditioner anti-blow control device according to an embodiment of the present invention, including:
an obtaining module 301, configured to obtain a condensed water generating speed per unit area and a temperature difference value between an air return side temperature of an indoor unit and a set temperature;
the adjusting module 302 adjusts the frequency of the compressor according to the condensate water generating speed and the temperature difference value in unit area, wherein the frequency of the compressor is in negative correlation with the condensate water generating speed and in positive correlation with the temperature difference value.
The air conditioner anti-blow-out control device that this embodiment provided, adjusting module 302 considers unit area's comdenstion water production speed and refrigerating output demand comprehensively, carry out accurate regulation and control to compressor frequency, unit area's comdenstion water production speed is faster, then indicate that the current indoor set blows the water risk higher, when unit area's comdenstion water production speed is faster, on the basis of considering the difference in temperature, suitably down-regulate compressor frequency, can reduce unit area's comdenstion water production speed, the volume that the comdenstion water produced in the short time has been reduced, can solve the air conditioner problem of blowing from the source, reduce the risk of blowing of indoor set.
The adjusting module 302 is configured to, under the condition that the condensate water generating speed per unit area is less than a first speed threshold, control the frequency of the compressor to decrease by a first amplitude when the temperature difference value is less than or equal to a first temperature difference threshold; when the temperature difference value is larger than the first temperature threshold value and smaller than or equal to the second temperature threshold value, controlling the frequency of the compressor to maintain the current frequency value; and when the temperature difference value is larger than a second temperature difference threshold value, controlling the frequency of the compressor to be adjusted upwards by a second amplitude. The adjusting module 302 is further configured to control the frequency of the compressor to be adjusted downward by a third amplitude when the temperature difference value is less than or equal to the first temperature difference threshold value under the condition that the condensate water generation speed per unit area is greater than or equal to the first speed threshold value and less than or equal to the second speed threshold value; when the temperature difference value is larger than the first temperature threshold value and smaller than or equal to the second temperature threshold value, controlling the frequency of the compressor to be adjusted downwards by a fourth amplitude; and controlling the frequency of the compressor to maintain the current frequency value when the temperature difference value is larger than the second temperature difference threshold value. The adjusting module 302 is further configured to control the frequency of the compressor to decrease by a fifth amplitude when the temperature difference value is less than or equal to the first temperature difference threshold value under the condition that the condensate water generation speed per unit area is greater than or equal to the third speed threshold value; when the temperature difference value is larger than the first temperature difference threshold value and smaller than or equal to the second temperature difference threshold value, controlling the frequency of the compressor to be adjusted downwards by a sixth amplitude, wherein the sixth amplitude is larger than the fourth amplitude; and when the temperature difference value is larger than the temperature difference threshold value, controlling the frequency of the compressor to be adjusted downwards by a seventh amplitude.
The acquisition module 301 specifically includes an acquisition unit and a first calculation unit, where the acquisition unit is used to acquire an operation air volume, a return air side moisture content, and an air outlet side moisture content of the indoor unit; the first calculating unit is used for calculating the generation amount of the condensed water according to the operation air volume, the moisture content of the return air side and the moisture content of the air outlet side.
The obtaining module 301 may further include a second calculating unit, and the second calculating unit is configured to calculate the condensed water generating speed per unit area according to the condensed water generating speed, the windward area of the evaporator, the indoor unit form and the capacity value.
The adjusting module 302 is further configured to adjust a rotation speed of a fan of the indoor unit according to a condensate water generating speed per unit area.
Specifically, the adjusting unit is configured to decrease the rotation speed of the fan when the duration of the unit area of the condensed water generation speed greater than the tenth speed threshold exceeds a preset duration.
The embodiment also provides an air conditioner, which comprises a computer readable storage medium and a processor, wherein the computer readable storage medium stores a computer program, and the computer program is read by the processor and runs on the processor to realize the method.
Preferably, a wet bulb temperature sensing bulb can be installed at the air return side of an indoor unit of the air conditioner, and the wet bulb temperature sensing bulb can detect the wet bulb temperature at the air return side of the indoor unit, so that the corresponding moisture content at the air return side can be obtained by inquiring the table 3 according to the wet bulb temperature; the air outlet side of an indoor unit of the air conditioner is provided with a dry-bulb temperature sensing bag, the dry-bulb temperature sensing bag can detect the dry-bulb temperature of the air outlet side of the indoor unit, the outlet air at the air outlet side is saturated humidity air under a refrigeration condition, the actual dry-bulb temperature at the air outlet side is the wet-bulb temperature at the air outlet side, and the corresponding moisture content at the air outlet side can be obtained by inquiring the upper table 3 according to the dry-bulb temperature at the air outlet side.
The present embodiment further provides a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements the processes of the air-conditioning anti-blow-by control method embodiment, and can achieve the same technical effects, and in order to avoid repetition, the details are not repeated here. The computer-readable storage medium may be a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk.
Of course, those skilled in the art will understand that all or part of the processes in the methods of the above embodiments may be implemented by instructing the control device to perform operations through a computer, and the programs may be stored in a computer-readable storage medium, and when executed, the programs may include the processes of the above method embodiments, where the storage medium may be a memory, a magnetic disk, an optical disk, and the like.
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.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: those skilled in the art can still make modifications or changes to the embodiments described in the foregoing embodiments, or make equivalent substitutions for some features, within the scope of the disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. An air conditioner anti-blowing control method is characterized by comprising the following steps:
acquiring the condensate water generating speed in unit area and the temperature difference value between the return air side temperature of the indoor unit and the set temperature;
and adjusting the frequency of a compressor according to the condensate water generation speed of the unit area and the temperature difference value, wherein the frequency of the compressor is in negative correlation with the condensate water generation speed and in positive correlation with the temperature difference value.
2. The air conditioner anti-blow water control method according to claim 1, characterized in that the method further comprises:
and adjusting the rotating speed of a fan of the indoor unit according to the generating speed of the condensed water in the unit area, wherein the rotating speed of the fan is inversely related to the generating speed of the condensed water in the unit area.
3. The air conditioner anti-blow water control method according to claim 1, characterized by comprising:
if the condensate water generating speed in the unit area is less than a first speed threshold, controlling the frequency of the compressor to be adjusted downwards by a first amplitude when the temperature difference value is less than or equal to a first temperature difference threshold; when the temperature difference value is larger than the first temperature threshold value and smaller than or equal to a second temperature difference threshold value, controlling the frequency of the compressor to maintain a current frequency value; when the temperature difference value is larger than the second temperature difference threshold value, controlling the frequency of the compressor to be adjusted upwards by a second amplitude;
and/or if the speed of generating the condensed water in the unit area is greater than or equal to the first speed threshold and less than the second speed threshold, controlling the frequency of the compressor to be adjusted downwards by a third amplitude when the temperature difference value is less than or equal to the first temperature difference threshold, wherein the third amplitude is greater than the first amplitude; when the temperature difference value is larger than the first temperature threshold value and smaller than or equal to the second temperature threshold value, controlling the frequency of the compressor to be adjusted downwards by a fourth amplitude, wherein the fourth amplitude is smaller than the third amplitude; when the temperature difference value is larger than the second temperature difference threshold value, controlling the compressor frequency to maintain a current frequency value;
and/or if the condensate water generation speed in unit area is greater than or equal to the third speed threshold, controlling the frequency of the compressor to be adjusted downwards by a fifth amplitude when the temperature difference value is less than or equal to the first temperature difference threshold, wherein the fifth amplitude is greater than the third amplitude; when the temperature difference value is larger than the first temperature difference threshold value and smaller than or equal to the second temperature difference threshold value, controlling the frequency of the compressor to be adjusted downwards by a sixth amplitude, wherein the sixth amplitude is larger than the fourth amplitude and smaller than the fifth amplitude; and when the temperature difference value is larger than the temperature difference threshold value, controlling the frequency of the compressor to be adjusted downwards by a seventh amplitude, wherein the seventh amplitude is smaller than the sixth amplitude.
4. The air conditioner anti-blow-off control method according to any one of claims 1-3, wherein the acquiring a condensed water generation speed per unit area includes:
acquiring the operation air quantity, the moisture content of the return air side and the moisture content of the air outlet side of the indoor unit;
calculating the generation amount of condensed water according to the operation air volume, the moisture content of the return air side and the moisture content of the air outlet side, wherein the operation air volume and the moisture content of the return air side are positively correlated with the generation amount of the condensed water, and the moisture content of the air outlet side is negatively correlated with the generation amount of the condensed water;
and calculating the condensed water production speed of the unit area according to the condensed water production amount, the windward area of the evaporator, the indoor unit form and the capacity value, wherein the indoor unit form comprises a wall-mounted unit, an air duct machine and a ceiling machine, and the capacity value is negatively related to the condensed water production speed of the unit area.
5. The air conditioner anti-blow-out control method of claim 4, wherein the calculation formula of the condensed water generation amount is as follows:
m＝q*(B-A)*ρ，
wherein m represents the condensed water generation amount, q represents the operation air volume, B represents the return air side moisture content, a represents the outlet air side moisture content, and ρ represents the air density.
6. The air conditioner anti-blow-down control method according to claim 5, wherein the calculation formula of the condensed water generation speed per unit area is as follows:
wherein n represents the condensed water generating speed per unit area, S represents the windward area of the evaporator, and lambda represents a correction parameter value; the lambda value is related to the indoor machine form, and the lambda value is positively related to the indoor machine function value.
7. The air conditioner anti-blow-out control method of claim 2 or 3, wherein the adjusting of the indoor unit fan rotation speed according to the condensed water generation speed per unit area comprises:
and if the duration that the condensate water generation speed in unit area is greater than the tenth speed threshold exceeds the preset duration, reducing the rotating speed of the fan.
8. An air conditioner anti-blow-off control device, characterized by comprising:
the acquisition module is used for acquiring the condensed water generation speed of a unit area and the temperature difference value between the air return side temperature of the indoor unit and the set temperature;
and the adjusting module is used for adjusting the frequency of the compressor according to the condensate water generating speed per unit area and the temperature difference value, wherein the frequency of the compressor is in negative correlation with the condensate water generating speed and in positive correlation with the temperature difference value.
9. An air conditioner comprising a computer readable storage medium storing a computer program and a processor, the computer program when read and executed by the processor implementing the method of any one of claims 1-7.
10. The air conditioner according to claim 9, wherein a wet bulb is installed on a return air side of the indoor unit of the air conditioner, and a dry bulb is installed on an air outlet side of the indoor unit of the air conditioner.
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