CN110500717B - Air conditioning air volume correction control method, device and equipment and air conditioning system - Google Patents
Air conditioning air volume correction control method, device and equipment and air conditioning system Download PDFInfo
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- 238000012937 correction Methods 0.000 title claims abstract description 59
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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Abstract
The application relates to an air conditioner air volume correction control method, an air conditioner air volume correction control device and an air conditioner system, wherein the method comprises the following steps: the method comprises the steps of obtaining the ambient temperature of an air conditioner external unit, calculating according to the ambient temperature and a prestored temperature threshold value to obtain a temperature difference value, and adjusting the air conditioner air volume of a target area according to the temperature difference value. According to the air conditioning air volume correction control method, the device, the equipment and the air conditioning system, the ambient temperature is compared with the pre-stored temperature threshold value, when the difference value exists between the ambient temperature and the pre-stored temperature threshold value, the air conditioning air volume is changed according to the difference value between the ambient temperature and the temperature threshold value by considering that the ambient temperature is too high or too low at the moment, and under the working condition set by the original air conditioner, the air volume can be increased or reduced according to the difference value between the ambient temperature and the temperature threshold value so as to compensate the refrigerating or heating effect of the air conditioner and improve the working performance and the use reliability of the air conditioner.
Description
Technical Field
The application relates to the technical field of electrical equipment, in particular to an air conditioner air volume correction control method, device and equipment and an air conditioner system.
Background
With the improvement of living standards of people, more and more comfortable living and working environments are pursued, and the air conditioner is widely applied as an air conditioner, and can convey cold air to a space to reduce the indoor temperature in hot summer and convey hot air to the space to improve the indoor temperature in cold winter, so that users in the room feel comfortable, and the living quality is improved.
However, when the air conditioner is used for cooling in hot summer, if the ambient temperature is too high, the cooling efficiency becomes low, the cooling effect becomes poor, and similarly, when the air conditioner is used for heating in cold winter, if the ambient temperature is too low, the heating effect of the air conditioner also becomes poor, so that the working performance of the air conditioner is affected.
Disclosure of Invention
Therefore, it is necessary to provide an air conditioner air volume correction control method and device and an air conditioner to solve the problem that the conventional air conditioner is not energy-saving.
An air conditioner air volume correction control method comprises the following steps:
acquiring the ambient temperature of an air conditioner outdoor unit;
comparing the environment temperature with a prestored temperature threshold value to obtain a comparison result;
and adjusting the air conditioner air volume of the target area according to the comparison result.
An air conditioner air volume correction control device includes:
the data acquisition module is used for acquiring the ambient temperature of the air conditioner external unit;
the data processing module is used for calculating to obtain a temperature difference value according to the environment temperature and a prestored temperature threshold value;
and the action execution module is used for adjusting the air conditioner air volume of the target area according to the temperature difference.
The air conditioner air volume correction control equipment comprises a temperature detection device, an air valve and a controller, wherein the temperature detection device is arranged outside an air conditioner, the air valve is arranged in a target area, the temperature detection device and the air valve are both connected with the controller, and the controller is connected with the air conditioner;
the temperature detection device is used for detecting the ambient temperature of the air conditioner external unit and sending the ambient temperature to the controller, and the controller is used for executing the method to adjust the air conditioner air volume of the target area.
An air conditioning system comprises an air conditioner and the air conditioning air volume correction control device, wherein the air conditioning air volume correction control device is connected with the air conditioner.
According to the air conditioning air volume correction control method, the air conditioning air volume correction control device, the air conditioning air volume correction control equipment and the air conditioning system, after the environment temperature of the air conditioning outdoor unit is obtained, the environment temperature is compared with the pre-stored temperature threshold value, when the environment temperature is different from the pre-stored temperature threshold value, the air conditioning air volume is changed according to the difference between the environment temperature and the temperature threshold value by considering that the environment temperature is too high or too low at the moment, so that the air conditioning is more energy-saving, under the working condition set by the original air conditioner, the air volume can be increased or reduced according to the difference between the environment temperature and the temperature threshold value so as to compensate the refrigerating or heating effect of the air conditioner.
Drawings
FIG. 1 is a flow chart of an air conditioning air volume correction control method according to an embodiment;
FIG. 2 is a flow chart of an air conditioning air volume correction control method in another embodiment;
FIG. 3 is a flow chart of an air conditioner air volume correction control method in yet another embodiment;
FIG. 4 is a flowchart of an air conditioner air volume correction control method in yet another embodiment;
FIG. 5 is a flowchart of an air conditioner air volume correction control method in yet another embodiment;
FIG. 6 is a flowchart of an air conditioner air volume correction control method in yet another embodiment;
FIG. 7 is a flowchart of an air conditioner air volume correction control method in yet another embodiment;
fig. 8 is a block diagram showing the structure of an air conditioner air volume correction control apparatus according to an embodiment;
fig. 9 is a block diagram showing the structure of an air-conditioning air volume correction control apparatus according to an embodiment.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described more fully below by way of examples in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In one embodiment, please refer to fig. 1, which provides an air conditioner air volume correction control method, including the following steps:
step S100: and acquiring the ambient temperature of the air conditioner outdoor unit.
Before or during the start of the air conditioner, the ambient temperature of an air conditioner external unit needs to be detected, and then the ambient temperature adjusts the working parameters of each device of the air conditioner to reach the set temperature. The method for detecting the environment temperature of the air conditioner external unit is not unique, for example, an environment temperature sensing bulb arranged on the air conditioner external unit can be adopted, the environment temperature sensing bulb detects the environment temperature of the air conditioner external unit and converts the detected signal into an electric signal, the environment temperature value of the air conditioner external unit can be obtained by analyzing the obtained electric signal, the detection process is convenient, and the use cost of devices is low. It is understood that in other embodiments, other devices may be used to detect the temperature of the environment where the outdoor unit of the air conditioner is located, as long as those skilled in the art can realize this.
Step S200: and comparing the ambient temperature with a pre-stored temperature threshold value to obtain a comparison result.
And after the ambient temperature of the air conditioner external unit is obtained, comparing the ambient temperature with a prestored temperature threshold value to obtain a comparison result. The specific value of the pre-stored temperature threshold is not fixed and can be determined according to factors such as the operating parameters of the air conditioner, the working state of the air conditioner, the ambient temperature of the air conditioner external unit and the like, the pre-stored temperature threshold can comprise a plurality of values, and the corresponding temperature thresholds are different under different operating parameters of the air conditioner, different working states of the air conditioner and different ambient temperatures of the air conditioner external unit. After the air conditioner is started, the pre-stored temperature threshold value is obtained by comprehensively considering all the factors so as to meet the requirements of specific occasions. After the ambient temperature of the air conditioner external unit and the pre-stored temperature threshold are obtained, the ambient temperature is compared with the pre-stored temperature threshold to obtain a comparison result, and the data type of the comparison result is not unique, for example, the comparison result may be a difference value, and may be specifically selected according to the data processing step.
Step S300: and adjusting the air conditioning air volume of the target area according to the comparison result.
When the difference exists between the environmental temperature and the pre-stored temperature threshold value, the air conditioner air volume in the target area needs to be adjusted to enable the air conditioner to work towards the normal state by considering that the working state of the current air conditioner does not reach the preset working state. According to the difference of the values of the comparison results, the air volume of the air conditioner in the adjusted target area is different in amplitude, so that energy can be saved, and resource waste is reduced.
In one embodiment, the comparison result is a temperature difference calculated according to the ambient temperature and a prestored temperature threshold, when the temperature difference is large, the amplitude of the air conditioning air volume in the adjusted target area is large, so that the temperature difference between the ambient temperature of the air conditioner outdoor unit and the temperature threshold is reduced as soon as possible, the working efficiency is improved, when the temperature difference is small, the amplitude of the air conditioning air volume in the adjusted target area is small, energy can be saved and resource waste can be reduced on the premise that the temperature difference between the ambient temperature of the air conditioner outdoor unit and the temperature threshold is reduced. It can be understood that, in other embodiments, the comparison result may also be a ratio calculated according to the ambient temperature and a prestored temperature threshold, when the ratio is greater than 1, the ambient temperature is considered to be greater than the prestored temperature threshold, and when the ratio is less than 1, the ambient temperature is considered to be less than the prestored temperature threshold, and the ratio as the comparison result may also determine the magnitude of the ambient temperature and the prestored temperature threshold, which is used as the air conditioning air volume of the adjustment target area, and the calculation is simple.
In one embodiment, referring to fig. 3, step S300 includes step S310 and step S320.
Step S310: and obtaining the corrected air volume according to the temperature difference and a preset correction coefficient.
The corrected air volume is not unique at the time of calculation, for example, a product obtained by multiplying the temperature difference by a preset correction coefficient can be used as the corrected air volume, and the correction coefficient is determined by the capacity of the unit fan and can be generally determined after the fan is installed. Taking the temperature threshold value including the upper temperature limit and the lower temperature limit as an example, F0 is the ambient temperature, F1 is the upper temperature limit, F2 is the lower temperature limit, and θ is the correction coefficient, when F0> F1, the corrected air flow Δ Φ is (F0-F1) × θ, when F0< F2, the corrected air flow Δ Φ is (F0-F2) × θ, the air output of the air conditioner running according to the preset program can be changed by correcting the air flow, and the purpose of correcting the control according to the ambient temperature is achieved.
The correction factor is the product of the length of the air pipe of the air conditioner and the work of the air conditioner to overcome the resistance of the air pipe with unit length. Different unit capacities lead to different correction coefficients, the correction coefficients are influenced by the length of the air pipe, and the longer the air pipe is, the lower the efficiency is. The correction coefficient is the product of the air pipe length of the air conditioner and the work of the air conditioner to overcome the resistance of the air pipe with unit length, the work is reactive loss, the work is added into the control of the air supply quantity of the air conditioner, when the ambient temperature is too high or too low, different compensation controls are applied under different working modes of the air conditioner, and the working reliability of the air conditioner is improved.
Step S320: and adjusting the air conditioning air volume of the target area according to the corrected air volume.
The sign of the corrected air volume is not unique, when the corrected air volume is positive, the air conditioning air volume of the target area is increased, and when the corrected air volume is negative, the air conditioning air volume of the target area is decreased, so that the aim of adjusting the air conditioning air volume of the target area is fulfilled.
In one embodiment, referring to fig. 2, step S200 includes steps S210 to S230.
Step S210: and acquiring the current operation mode of the air conditioner.
Specifically, the current operation mode of the air conditioner is obtained as whether the current operation mode of the air conditioner is a cooling mode or a heating mode. The mode for acquiring the current operation mode of the air conditioner is not unique, and the current operation mode of the air conditioner can be directly acquired from the air conditioner, the air conditioner can receive a setting instruction of a user, so that the operation mode is determined and stored in the execution program, and the air conditioner can be directly operated according to the operation mode stored in the execution program when in operation, so that when the current operation mode of the air conditioner needs to be acquired by the air volume correction control method, the operation mode of the air conditioner can be directly acquired from the content stored in the execution program. Or, when the air volume correction control method of the air conditioner needs to acquire the current operation mode of the air conditioner, the current operation mode of the air conditioner can also be determined according to the difference value between the ambient temperature and the set temperature. The ambient temperature is obtained by the preorder step, the set temperature is obtained from the air conditioner, the air conditioner can receive a temperature setting instruction of a user, so that the set temperature is determined and stored in the execution program, and the working state is directly determined according to the set temperature stored in the execution program when the air conditioner runs, so that when the air volume correction control method of the air conditioner needs to obtain the set temperature of the air conditioner, the set temperature can be directly obtained from the content stored in the execution program. The specific process of determining the current operation mode of the air conditioner according to the difference value between the ambient temperature and the set temperature comprises the following steps: when the ambient temperature is lower than the set temperature, the current operation mode of the air conditioner is determined to be a heating mode, and when the ambient temperature is higher than the set temperature, the current operation mode of the air conditioner is determined to be a cooling mode. It is understood that in other embodiments, the current operation mode of the air conditioner may be obtained in other manners as long as the implementation is considered by those skilled in the art.
Step S220: and extracting the corresponding temperature threshold value from the stored temperature threshold value data according to the current operation mode.
The number of the stored temperature threshold data can be multiple, the air conditioner has different operation modes, the corresponding temperature thresholds are different, and the comparison accuracy can be improved by selecting the corresponding temperature thresholds according to the operation modes of the air conditioner. Generally, when the air conditioner works in the cooling mode, the environment temperature of the air conditioner external unit is considered to be high, when the air conditioner works in the heating mode, the environment temperature of the air conditioner external unit is considered to be low, the temperature threshold value corresponding to the air conditioner working in the cooling mode is larger than the temperature threshold value corresponding to the air conditioner working in the cooling mode, and when the environment temperature is compared with the extracted temperature threshold value, the effectiveness of the comparison process can be improved.
Step S230: and calculating to obtain a temperature difference value according to the ambient temperature and the extracted temperature threshold value.
After the extracted temperature threshold is confirmed, the current operation mode of the air conditioner is also obtained, and then a temperature difference value can be calculated according to the ambient temperature and the extracted temperature threshold, where the temperature difference value may be a difference value with a positive sign and a negative sign, for example, a sign of the temperature difference value obtained by subtracting the extracted temperature threshold from the ambient temperature is opposite to a sign of the temperature difference value obtained by subtracting the ambient temperature from the extracted temperature threshold, and the temperature difference value may also be an absolute value of the difference value, and may be specifically selected according to the data processing step.
In one embodiment, referring to fig. 3, the temperature threshold includes an upper temperature value and a lower temperature value, and step S230 includes step S232 and step S234.
The temperature threshold is not limited to a certain value, in this embodiment, the temperature threshold includes an upper temperature limit and a lower temperature limit, a threshold range can be defined by the upper temperature limit and the lower temperature limit, the threshold range contains more data than a single value, the adjustability is good, and the application range is wider. When the ambient temperature is greater than the lower temperature limit value and less than the upper temperature limit value, the ambient temperature is considered to be within the temperature threshold range, and no difference exists between the ambient temperature and the temperature threshold, so that the air volume of the air conditioner in the target area does not need to be adjusted, and the air conditioner can operate according to the set working state.
Step S232: and when the ambient temperature is greater than the upper temperature limit value, calculating to obtain a temperature difference value according to the ambient temperature and the upper temperature limit value.
When the ambient temperature is greater than the upper temperature limit value, a temperature difference exists between the ambient temperature and the upper temperature limit value, the ambient temperature is considered to be too high at the moment, a temperature difference value is calculated according to the ambient temperature and the upper temperature limit value and is used for subsequent processing steps, and the degree that the ambient temperature exceeds the upper temperature limit value can be reflected. The temperature difference may be a difference with a positive or negative sign, for example, a sign of a temperature difference obtained by subtracting the temperature upper limit value from the ambient temperature is opposite to a sign of a temperature difference obtained by subtracting the ambient temperature from the temperature upper limit value, and the temperature difference may also be an absolute value of the difference, which may be selected according to the data processing step.
Step S234: and when the ambient temperature is less than the lower temperature limit value, calculating to obtain a temperature difference value according to the ambient temperature and the lower temperature limit value.
When the ambient temperature is lower than the lower temperature limit value, a temperature difference exists between the ambient temperature and the lower temperature limit value, the ambient temperature is considered to be too low, a temperature difference value is calculated according to the ambient temperature and the lower temperature limit value and is used for subsequent processing steps, and the degree that the ambient temperature is lower than the lower temperature limit value can be reflected. The temperature difference may be a difference with a positive or negative sign, for example, a sign of a temperature difference obtained by subtracting the lower temperature limit value from the ambient temperature is opposite to a sign of a temperature difference obtained by subtracting the ambient temperature from the lower temperature limit value, and the temperature difference may also be an absolute value of the difference, and may be specifically selected according to the data processing step.
In one embodiment, referring to fig. 4, step S320 includes step S330.
Step S330: and adjusting the air conditioning air volume of the target area according to the step number of the corrected air volume adjusting air valve.
The manner of adjusting the air conditioning air volume of the target area is not exclusive, and the air conditioning air volume of the target area may be adjusted by adjusting the number of steps of the air valve based on the corrected air volume in the present embodiment. The opening degree of the air valve can be changed by adjusting the step number of the air valve, the larger the step number of the air valve is, the larger the opening degree of the air valve is, the smaller the step number of the air valve is, the smaller the opening degree of the air valve is, the opening degree of the air valve has different grades, the air supply amount corresponding to the different grades is different, the example that the opening degree of the air valve comprises 0, 20%, 30%, 50% … 100% and the like is taken as an example, when the opening degree of the air valve is 0, the air valve is completely closed, the air valve can not supply air, when the opening degree of the air valve is 100%, the air valve is completely opened, and at the moment, the. Generally, the air volume is increased as the opening degree of the damper is increased, and the air volume is decreased as the opening degree of the damper is decreased, so that the air volume of the air conditioner in the target area can be adjusted by adjusting the number of steps of the damper. It is understood that in other embodiments, the amount of the air conditioning air in the target area may be adjusted in other manners, such as changing the number of the opened air valves or adjusting the frequency of the compressor, etc., as long as the person skilled in the art can realize the adjustment.
In one embodiment, referring to fig. 5, step S330 includes steps S340 to S370.
Step S340: and acquiring the target step number of the air valve of the target area.
The target step number is the degree of an air valve which needs to be opened when the air conditioner enables the environment temperature of an air conditioner external unit to reach the set temperature. The target step number is not unique, and can be directly obtained from the air conditioner, after the air conditioner receives a setting instruction of a user, the target step number of the air valve is calculated by combining parameters of each device of the air valve according to the setting temperature, the working mode and the like set by the user, and when the air valve works at the target step number, the ambient temperature can reach the setting temperature. Or, after the set temperature and the working mode are obtained from the air conditioner, the target step number can be calculated by combining the detected ambient temperature. Taking a regional control system as an example, after the regional controller sends the environment temperature and the temperature set by the user to the regional master controller, the regional master controller controls the air valve controller to operate, the air valve controller controls the air valve to open to a corresponding opening, the opening is the control step number of the air valve, taking a stepping motor with 500 steps as an example, the air valve is controlled to open to 300 steps, and the 300 steps is the target step number.
Step S350: and calculating to obtain the additional steps according to the corrected air volume.
The additional step number is calculated according to the corrected air volume, specifically according to the temperature difference between the ambient temperature and the temperature threshold. When the temperature threshold comprises a temperature upper limit value and a temperature lower limit value, determining a temperature difference value according to the size of the ambient temperature, when the ambient temperature is greater than the temperature upper limit value, the temperature difference value is the difference value between the ambient temperature and the temperature upper limit value, and when the ambient temperature is less than the temperature lower limit value, the temperature difference value is the difference value between the ambient temperature and the temperature lower limit value. The sign of the additional step number is consistent with that of the temperature difference value, when the temperature difference value is a positive number, the additional step number is a positive number, when the temperature difference value is a negative number, the additional step number is also a negative number, and when the temperature difference value is an absolute value, the additional step number is also an absolute value, so that the change of the temperature difference value is accurately reflected.
Step S360: and calculating to obtain the control step number according to the additional step number and the target step number.
After the additional step number and the target step number are obtained, the control step number can be calculated based on the additional step number and the target step number, and the additional step number is a correction to the target step number, so that the adjusted control step number is obtained. The control step number is not unique, and for example, a sum obtained by adding the additional step number and the target step number may be used as the control step number, and the calculation process is simple and easy to implement. It is understood that in other embodiments, the control step number may be calculated in other manners, as long as the implementation is considered by those skilled in the art.
Step S370: and adjusting the step number of the air valve according to the control step number so as to adjust the air conditioning air volume of the target area.
And after the control steps are obtained, adjusting the steps of the air valve according to the control steps, specifically, updating the steps of the air valve by the control steps, and taking the calculated control steps as the updated working steps of the air valve, thereby playing a role in adjusting the space air volume of the target area.
In one embodiment, referring to fig. 6, step S340 includes steps S342 to S346.
Step S342: and calculating to obtain a target temperature difference value according to the current temperature of the target area and the temperature set by the user.
And after the current temperature of the target area and the temperature set by the user are obtained, calculating to obtain a target temperature difference value according to the current temperature of the target area and the temperature set by the user. The specific value of the user set temperature is not fixed, and can be determined according to the setting instruction of the user in the target area, when the number of the target areas is more than two, the user set temperature of each target area may be different, and the target temperature difference of each target area needs to be calculated respectively. The user-set temperature refers to a target temperature which is set by a user and is required to be reached by the air conditioner, and can be directly obtained from the air conditioner, taking a regional control system as an example, the target temperature difference can be obtained from a regional control terminal of the regional control system, and the target temperature difference is calculated after the air conditioner is started, wherein the difference can be a difference with a positive sign or a negative sign, or an absolute value of the difference, and can be specifically selected according to a data processing step.
Step S344: and calculating to obtain the energy to be supplied according to the target temperature difference, the air density, the air specific heat capacity and the volume of the target area.
The method for calculating the energy to be supplied is not exclusive, in this embodiment, the energy to be supplied is obtained by multiplying the target temperature difference, the air density, the air specific heat capacity, and the volume of the target area, the target temperature difference represents the difference between the ambient temperature and the temperature set by the user, the calculation is performed in units of celsius degrees, the specific value of the air density can be adjusted according to the actual situation, and generally can be 1.293kg/m3The specific heat capacity of air generally refers to the specific heat of air at constant pressure, and refers to the temperature rise of a certain substance per unit mass under the condition of constant pressureThe specific value of the specific heat capacity of the air can be 1.005kJ/kg, and can also be adjusted according to the actual requirement. The value of the spatial volume of the target region is not unique, and may be set when the air conditioner is installed, or may be an updated value of the target region input again during use by the user, and may be called directly during use. The number of the target areas is not unique, for a regional control system, the air conditioning unit can supply air to a plurality of regions, the space volume of each target area is possibly different, and during calculation, the parameters collected by the current target area are used as the standard.
Specifically, in the present embodiment, the energy to be supplied is calculated using the following formula:
Q＝C*ρ*V*Δt
wherein Q is the energy to be supplied, the unit is kJ, delta t is the target temperature difference, the unit is DEG C, rho is the air density, and the unit is kg/m3C is the specific heat capacity of air, and is expressed in J/(kg.k), V is the volume of the target area, and is expressed in m3. With a spatial volume of a region of 45m3For example, in the case of air-conditioning refrigeration, the air density ρ is 1.293kg/m3The specific heat capacity C of air was 1.005kJ/kg, and the energy required for each 1 ℃ reduction in the target region was 45.225 kJ. It is understood that in other embodiments, the energy to be supplied may be calculated in other ways, as long as the skilled person realizes this.
Step S346: and obtaining the target step number according to the preset refrigerating capacity of the air conditioner air duct machine and the energy required to be supplied.
The method for calculating the target number of steps is not unique, and in this embodiment, the target number of steps is calculated according to the preset cooling capacity of the air conditioner air duct unit and the energy required to be supplied. The refrigerating capacity of the air conditioner air pipe machine is set when the air conditioner air pipe machine leaves a factory, specifically is the product of the rated power of an air conditioner and the energy efficiency ratio of the air conditioner, and represents the refrigerating/heating power which can be provided by the air conditioner fan in 1 hour, the specific size of the air valve can be obtained by calculating the proportion of the energy to be supplied to the air conditioner air pipe machine to the refrigerating capacity, and the opening size of each air valve can be obtained when the number of the air valves is more than two, so that the target step number is obtained. Assuming that the refrigerating capacity of the air pipe machine is 10P, the refrigerating capacity of the air pipe machine is 25KW 21495kJ, the air pipe machine runs at rated power, only a single air valve is opened, 21495kJ energy can be supplied every hour, 45.225kJ energy corresponds to one air valve target step number, the specific opening size of the air valve can be obtained by converting the required supply energy of a target area into the ratio of the refrigerating capacity of the air pipe machine, the opening size of each air valve can be obtained by the same principle of the multi-air valve, and the target step number can be obtained.
In one embodiment, referring to fig. 6, step S350 includes step S352.
Step S352: and calculating to obtain the additional steps according to the corrected air volume and the air volume increased by each 1 step of opening the air valve.
The number of additional steps refers to the number of steps calculated according to the corrected air volume, the air volume per step is different according to different parameters of the air valve, the calculation mode of the number of additional steps is not unique, the quotient obtained by dividing the corrected air volume by the air volume increased by 1 step of opening the fan is used as the number of additional steps in the embodiment, and it can be understood that in other embodiments, the number of additional steps can be calculated in other modes as long as the skilled person can realize the calculation.
In one embodiment, referring to fig. 6, the current operation mode of the air conditioner is a heating mode, and step S370 includes step S372 and step S374.
When the current operation mode of the air conditioner is a heating mode, if the ambient temperature is too low, positive step number control needs to be added to increase the opening degree of the air valve, and if the ambient temperature is too high, negative step number control needs to be added to reduce the opening degree of the air valve.
Step S372: if the ambient temperature is higher than the upper temperature limit, the difference between the target number of steps and the additional number of steps is used as the control number of steps.
When the ambient temperature is higher than the upper limit value of the temperature, the current ambient temperature is considered to be too high, when the current operation mode of the air conditioner is a heating mode, the unit efficiency is very high, the actual air output is larger than the estimated air output, at the moment, the difference between the target step number and the additional step number is used as the control step number to reduce the control step number, the air quantity of the air outlet is throttled by reducing the opening degree of the air valve, and the air output of the air outlet is reduced, so that the effect of reducing the energy consumption is achieved.
Step S374: and if the ambient temperature is lower than the lower temperature limit value, taking the sum of the target step number and the additional step number as the control step number.
When the ambient temperature is lower than the lower temperature limit value, the current ambient temperature is considered to be too low, when the current operation mode of the air conditioner is a heating mode, the unit efficiency is low, the actual air output is smaller than the estimated air output, the sum of the target step number and the additional step number is used as the control step number to increase the control step number, and the air quantity of the air outlet is increased by increasing the opening degree of the air valve so as to improve the heating capacity of the air conditioner.
In one embodiment, referring to fig. 6, the current operation mode of the air conditioner is a cooling mode, and step S370 includes step S376 and step S378.
When the current operation mode of the air conditioner is a refrigeration mode, if the ambient temperature is too low, negative step number control needs to be added to reduce the opening degree of the air valve, and if the ambient temperature is too high, positive step number control needs to be added to increase the opening degree of the air valve.
Step S376: if the ambient temperature is higher than the upper temperature limit, the sum of the target number of steps and the additional number of steps is used as the control number of steps.
When the ambient temperature is higher than the upper temperature limit value, the current ambient temperature is considered to be too high, and when the current operation mode of the air conditioner is a refrigeration mode, the refrigeration effect is reduced compared with the low ambient temperature by the same air valve opening degree, so that the air valve opening degree needs to be slightly increased.
Step S378: and if the ambient temperature is lower than the lower temperature limit value, taking the difference between the target step number and the additional step number as the control step number.
When the ambient temperature is lower than the lower temperature limit value, the current ambient temperature is considered to be too low, when the current operation mode of the air conditioner is a refrigeration mode, the unit efficiency is low, the actual air output is smaller than the estimated air output, the sum of the target step number and the additional step number is used as a control step number to increase the control step number, and the air quantity of the air outlet is increased by increasing the opening degree of the air valve so as to improve the refrigeration capacity of the air conditioner.
The selection of the upper temperature limit value F1 and the lower temperature limit value F2 is different between the unit operation and different environment temperatures, taking a common air duct machine as an example, when in a refrigeration operation mode, F0 is greater than 27 ℃, an outer fan operates at a low wind gear, F0 is less than 24 ℃, and an outer fan operates at a high wind gear, so that the threshold values are respectively F1-27 ℃ and F2-24 ℃, when in a heating operation mode, F1-16 ℃ and F2-13 ℃ are determined by different actual outer fan parameters and unit capacity.
For a better understanding of the above embodiments, the following detailed description is given in conjunction with a specific embodiment. In one embodiment, referring to fig. 7, after the ambient temperature is obtained, it is first determined whether the ambient temperature is greater than a temperature upper limit F1, if yes, the correction step number control is performed, if no, it is continuously determined whether the ambient temperature is less than a temperature lower limit F2, if yes, the correction step number control is performed, the air-conditioning air supply amount is changed, and if no, the normal step number control is performed without changing the air-conditioning air supply amount. The specific process of correcting step number control is as follows:
taking a regional control system as an example, the regional control system only has one external unit and one internal fan, the air volume of different rooms is supplied through an air valve and an air duct, the number of the rooms is different, the set temperature of different rooms is different, and the static pressure affects the air volume and the actual air outlet effect. And recording the corresponding target air output W, and recording the air output corrected by the ring temperature as delta phi.
In the normal control process of the unit, the air volume W is the target air volume calculated according to fixed requirements, and the centralized controller calculates the opening degree of an air outlet of the air pipe machine and the frequency of the compressor through the air volume. In the actual control process, due to the influence of the environment temperature, the refrigeration efficiency when the environment temperature is high or the heating efficiency when the environment temperature is low is lower than the actual calculation, and the actual air output is smaller than the estimated air output. At this time, a closed-loop feedback mechanism is required to control the fan opening and the press frequency. When the ring temperature is greater than leaving factory threshold F1, when the user opens and heats, unit efficiency is very high, and the air outlet can carry out the amount of wind throttle, reduces the wind gap air output slightly to reach the effect that reduces the energy consumption, when the user opens refrigeration, unit efficiency is higher, compares with low ring temperature, and the same wind gap aperture refrigeration effect can reduce, so need improve the wind gap aperture slightly, in order to improve unit refrigeration ability, thereby improve user experience. Similarly, when the environment temperature is lower than a factory threshold value F2, when a user starts heating, the air quantity of an air outlet needs to be increased; when the refrigeration is started, the air outlet quantity is reduced.
W is the target air output, zone 1 is taken as an example, zone one is a 45 cubic meter space (15 square meters by 3 meters in height), and the density rho of the air is 1.293kg/m under the refrigeration condition3Since the specific heat capacity C of air is 1.005kJ/kg, the air duct machine needs to supply energy to a region of 45.225kJ each time the energy Q required for reducing 1 ℃ is 1.005 ρ ν Δ t is 1.293 Δ t 45 1kJ 45.225kJ, and the target air output of the inner fan can be calculated from the cooling capacity of the air duct machine and the air output rate of the inner fan. The inner machine of the air pipe machine is always opened, different air output quantities are required to be controlled by the opening degree of an air valve, and the energy of 45.225kj corresponds to the target step number of the air valve.
And recording the current ring temperature as F0 and the theta as a correction coefficient, determining the current ring temperature by the capacity of a unit fan, and setting the current ring temperature when the unit is installed. When F0> F1, the corrected air flow rate Δ Φ is (F0-F1) × θ, and when F0< F2, the corrected air flow rate Δ Φ is (F0-F2) × θ, and the compensation opening degree can be calculated by correcting the air flow rate, and the air valve control step number is added to the air valve control step number of the target step number + the additional step number. Thereby achieving the purpose of correcting and controlling according to the environment temperature. If the ring temperature is too low, negative step number control needs to be added, and the opening degree is reduced; when the ring temperature is too high, positive step control is required to be added, and the opening degree is increased. Assuming that the refrigerating capacity of the air pipe machine is 10P, the refrigerating capacity of the air pipe machine is 25KW 21495kJ, the air pipe machine operates at rated power, only a single air valve is opened, 21495kJ of energy can be supplied per hour, the total energy required to be supplied by the area 1 can be obtained according to the target reduced temperature of the area 1 and the size of the area 1, the specific opening size of the air valve 1 can be obtained by converting the total energy to the proportion of the total supplied energy, the opening size of each air valve can be obtained by converting the equivalent multi-air valve, and the target step number can be obtained. Different unit capacities lead to theta being different, the larger the influence of the length of the air pipe is, the longer the air pipe is, the lower the efficiency is, the work done by the air pipe machine per meter is overcome by theta, the length of the air pipe is equal to the length of the air pipe, the work is reactive loss, the theta is added into the control of the air pipe machine, different compensation controls are applied under the conditions of high and low ambient temperature refrigeration or heating, so that the refrigeration or refrigeration effect of the air conditioner is compensated, and the working performance and the use reliability of the air conditioner are improved.
According to the air conditioning air volume correction control method, after the ambient temperature of the air conditioner outdoor unit is obtained, the ambient temperature is compared with the pre-stored temperature threshold value, when the ambient temperature is different from the pre-stored temperature threshold value, the air conditioning air volume is changed according to the difference between the ambient temperature and the temperature threshold value by considering that the ambient temperature is too high or too low at the moment, and under the working condition set by the original air conditioner, the air volume can be increased or reduced according to the difference between the ambient temperature and the temperature threshold value so as to compensate the refrigerating or heating effect of the air conditioner, and the working performance and the use reliability of the air conditioner are improved.
In an embodiment, please refer to fig. 8, which provides an air conditioner air volume correction control apparatus, including a data obtaining module 100, a data processing module 200, and an action executing module 300, where the data obtaining module 100 is configured to obtain an ambient temperature of an external unit of an air conditioner, the data processing module 200 is configured to calculate a temperature difference according to the ambient temperature and a pre-stored temperature threshold, and the action executing module 300 is configured to adjust an air conditioner air volume in a target area according to the temperature difference.
For the specific limitation of the air conditioning air volume correction control device, reference may be made to the above limitation of the air conditioning air volume correction control method, which is not described herein again. Above-mentioned air conditioner amount of wind correction controlling means, after obtaining the ambient temperature that the outer machine of air conditioner is located, compare ambient temperature with the temperature threshold value that prestores, when ambient temperature and the temperature threshold value that prestores exist the difference, consider that ambient temperature is too high or low excessively this moment, then change the air conditioner amount of wind according to the difference of ambient temperature and temperature threshold value, under the operating condition that former air conditioner set up, can increase or reduce the amount of wind according to the difference of ambient temperature and temperature threshold value to the refrigeration or refrigerated effect of compensation air conditioner, improve the working property and the reliability in utilization of air conditioner.
Above-mentioned air conditioner amount of wind correction controlling means, after obtaining the ambient temperature that the outer machine of air conditioner is located, compare ambient temperature with the temperature threshold value that prestores, when ambient temperature and the temperature threshold value that prestores exist the difference, consider that ambient temperature is too high or too low this moment, then change the air conditioner amount of wind according to the difference of ambient temperature and temperature threshold value, under the operating condition that former air conditioner set up, can increase or reduce the amount of wind according to the difference of ambient temperature and temperature threshold value to the effect of the refrigeration or the heating of compensation air conditioner, improve the working property and the reliability in utilization of air conditioner.
In one embodiment, referring to fig. 9, an air conditioner air volume correction control apparatus is provided, which includes a temperature detection device 500, an air valve 600 and a controller 400, wherein the temperature detection device 500 is disposed at an external unit of an air conditioner, the air valve 600 is disposed at a target area, both the temperature detection device 500 and the air valve 600 are connected to the controller 400, and the controller 400 is connected to the air conditioner. The temperature detecting device 500 is used for detecting the ambient temperature of the outdoor unit of the air conditioner and sending the ambient temperature to the controller 400, and the controller 400 is used for executing the above method to adjust the air conditioning air volume of the target area.
Specifically, the temperature detection device 500 and the air valve 600 may be connected to the controller 400 through corresponding interfaces, for example, the temperature detection device 500 is connected to the controller 400 through a zone communication interface on the controller 400, the air valve 600 is connected to the controller 400 through an interface of the air valve 600 on the controller 400, and different interfaces correspondingly transmit different signals, so as to reduce mutual interference between the signals. The controller 400 may also be configured to connect to a control terminal, perform work according to an instruction sent by the control terminal, and feed back a working state or working parameters of the controller to the control terminal to implement signal exchange. The type of the temperature detecting device 500 is not exclusive, and may be, for example, a thermostat, which transmits a detected temperature signal to the controller 400, and the controller 400 adjusts the air conditioning volume of the target area according to the received temperature signal and a pre-stored temperature threshold value by using the method in the above embodiment.
In one embodiment, the number of target areas is two or more, and each target area is provided with the air valve 600 connected to the controller 400. The air valves 600 in each target area are used for air outlet, and each air valve 600 can be connected with the same controller 400 and work according to the control instruction of the same controller 400, so that the hardware cost is reduced. Alternatively, one controller 400 may be respectively disposed in each target area, and the controllers 400 in the target areas respectively control the operation of the corresponding dampers 600, so as to improve the accuracy of the operation.
Above-mentioned air conditioner amount of wind correction controlgear, after obtaining the ambient temperature that the outer machine of air conditioner is located, compare ambient temperature with the temperature threshold value that prestores, when ambient temperature and the temperature threshold value that prestores exist the difference, consider that ambient temperature is too high or too low this moment, then change the air conditioner amount of wind according to the difference of ambient temperature and temperature threshold value, under the operating condition that former air conditioner set up, can increase or reduce the amount of wind according to the difference of ambient temperature and temperature threshold value to the effect of the refrigeration or the heating of compensation air conditioner, improve the working property and the reliability in utilization of air conditioner.
In one embodiment, an air conditioning system is provided, which comprises an air conditioner and the air conditioning air volume correction control device as described above, wherein the air conditioning air volume correction control device is connected with the air conditioner. Specifically, the air conditioner can include the interior machine, outer machine and drive-by-wire ware, and outer machine connection drive-by-wire ware, outer machine and drive-by-wire ware all connect the interior machine for heat production or refrigeration, and the interior machine passes through interface and air conditioner air supply volume adjusting device, realizes signal exchange and energy transfer, accomplishes air conditioning system's work jointly.
According to the air conditioning system, after the ambient temperature of the air conditioner outdoor unit is obtained, the ambient temperature is compared with the pre-stored temperature threshold value, when the ambient temperature is different from the pre-stored temperature threshold value, the air volume of the air conditioner is changed according to the difference between the ambient temperature and the temperature threshold value by considering that the ambient temperature is too high or too low at the moment, and under the working condition set by the original air conditioner, the air volume can be increased or reduced according to the difference between the ambient temperature and the temperature threshold value so as to compensate the refrigerating or heating effect of the air conditioner, and the working performance and the use reliability of the air conditioner are improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (12)
1. An air conditioner air volume correction control method is characterized by comprising the following steps:
acquiring the ambient temperature of an air conditioner outdoor unit;
comparing the environment temperature with a prestored temperature threshold value to obtain a comparison result; the comparison result is a temperature difference value calculated according to the environment temperature and a prestored temperature threshold value;
adjusting the air conditioner air volume of the target area according to the comparison result;
the step of adjusting the air conditioning air volume of the target area according to the comparison result comprises the following steps:
taking a product obtained by multiplying the temperature difference value by a preset correction coefficient as a corrected air volume; the correction coefficient is the product of the length of the air pipe of the air conditioner and the work of the air conditioner for overcoming the resistance of the air pipe with unit length;
and adjusting the air conditioner air volume of the target area according to the corrected air volume.
2. The method of claim 1, wherein the step of comparing the ambient temperature with a pre-stored temperature threshold to obtain a comparison result comprises the steps of:
acquiring a current operation mode of the air conditioner;
extracting a corresponding temperature threshold from the stored temperature threshold data according to the current operation mode;
and calculating to obtain a temperature difference value according to the environment temperature and the extracted temperature threshold value.
3. The method of claim 2, wherein the temperature threshold comprises an upper temperature value and a lower temperature value, and wherein the step of calculating a temperature difference from the ambient temperature and the extracted temperature threshold comprises the steps of:
when the ambient temperature is greater than the upper temperature limit value, calculating to obtain a temperature difference value according to the ambient temperature and the upper temperature limit value;
and when the ambient temperature is smaller than the lower temperature limit value, calculating to obtain a temperature difference value according to the ambient temperature and the lower temperature limit value.
4. The method according to claim 3, wherein said step of adjusting the air-conditioning air volume of the target area according to the corrected air volume includes the steps of:
and adjusting the air conditioning air volume of the target area according to the step number of the air volume adjusting air valve.
5. The method as claimed in claim 4, wherein the step of adjusting the number of steps of the damper according to the corrected air volume to adjust the air volume of the air conditioner of the target area comprises the steps of:
acquiring a target step number of an air valve of a target area;
calculating to obtain an additional step number according to the corrected air volume;
calculating to obtain a control step number according to the additional step number and the target step number;
and adjusting the step number of the air valve according to the control step number so as to adjust the air conditioning air volume of the target area.
6. The method of claim 5, wherein the step of obtaining a target number of steps of the damper for the target area comprises the steps of:
calculating to obtain a target temperature difference value according to the current temperature of the target area and a temperature set by a user;
calculating to obtain energy to be supplied according to the target temperature difference, the air density, the air specific heat capacity and the volume of the target area;
and obtaining the target step number according to the preset refrigerating capacity of the air conditioner air pipe machine and the energy required to be supplied.
7. The method according to claim 5, wherein the step of calculating the additional step number based on the corrected air volume comprises the steps of:
and calculating to obtain the additional steps according to the corrected air volume and the air volume increased by each 1 step of opening the air valve.
8. The method as claimed in claim 5, wherein the step of adjusting the number of steps of the damper according to the control number of steps to adjust the air-conditioning air volume of the target area when the current operation mode of the air conditioner is the heating mode, comprises the steps of:
if the environmental temperature is greater than the upper temperature limit value, taking the difference between the target step number and the additional step number as a control step number;
if the environmental temperature is lower than the temperature lower limit value, taking the sum of the target step number and the additional step number as a control step number;
when the current operation mode of the air conditioner is a cooling mode, the step of adjusting the step number of the air valve according to the control step number to adjust the air volume of the air conditioner in the target area comprises the following steps:
if the environmental temperature is greater than the upper temperature limit value, taking the sum of the target step number and the additional step number as a control step number;
and if the environmental temperature is less than the temperature lower limit value, taking the difference between the target step number and the additional step number as the control step number.
9. An air conditioner air volume correction control device, characterized by comprising:
the data acquisition module is used for acquiring the ambient temperature of the air conditioner external unit;
the data processing module is used for comparing the environment temperature with a prestored temperature threshold value to obtain a comparison result; the comparison result is a temperature difference value calculated according to the environment temperature and a prestored temperature threshold value;
the action execution module is used for multiplying the temperature difference value by a preset correction coefficient to obtain a product which is used as a corrected air volume; the correction coefficient is the product of the length of the air pipe of the air conditioner and the work of the air conditioner for overcoming the resistance of the air pipe with unit length; and adjusting the air conditioner air volume of the target area according to the corrected air volume.
10. The air conditioner air volume correction control equipment is characterized by comprising a temperature detection device, an air valve and a controller, wherein the temperature detection device is arranged outside an air conditioner, the air valve is arranged in a target area, the temperature detection device and the air valve are both connected with the controller, and the controller is connected with the air conditioner;
the temperature detection device is used for detecting the ambient temperature of an air conditioner outdoor unit and sending the ambient temperature to the controller, and the controller is used for executing the method of any one of claims 1 to 8 to adjust the air conditioner air volume of the target area.
11. The apparatus of claim 10, wherein the number of the target areas is two or more, and each target area is provided therein with a damper connected to the controller.
12. An air conditioning system characterized by comprising an air conditioner and the air-conditioning air volume correction control device according to any one of claims 10 to 11, the air-conditioning air volume correction control device being connected to the air conditioner.
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| CN113147327B (en) * | 2020-01-22 | 2023-09-19 | 上海汽车集团股份有限公司 | PTC chip temperature control compensation method and system |
| CN113147326B (en) * | 2020-01-22 | 2023-03-28 | 上海汽车集团股份有限公司 | Temperature control compensation method and system for PTC chip |
| CN111831510B (en) * | 2020-07-13 | 2022-10-18 | Oppo广东移动通信有限公司 | Function regulation and control method and device and computer readable storage medium |
| CN111998496B (en) * | 2020-07-27 | 2021-11-23 | 珠海格力电器股份有限公司 | Air conditioner control method and device, storage medium and air conditioner |
| CN113342084B (en) * | 2021-06-15 | 2023-10-31 | 深圳市欧瑞博科技股份有限公司 | Intelligent control method and device of temperature control equipment, electronic equipment and storage medium |
| CN113339977A (en) * | 2021-06-17 | 2021-09-03 | 中洁环境科技(西安)集团有限公司 | Frequency modulation method and device of full-quality air conditioner and full-quality air conditioner |
| CN114484953B (en) * | 2022-02-07 | 2024-07-09 | 青岛海尔空调电子有限公司 | Heat pump unit and control method thereof |
| CN114738874A (en) * | 2022-05-08 | 2022-07-12 | 湖南格为科技有限公司 | Intelligent air conditioner based on regulation and control of Internet of things and control method thereof |
| CN115509276B (en) * | 2022-10-10 | 2024-05-07 | 厦门锐创节能科技有限公司 | Calculation method and monitoring device for heating or refrigerating power of equipment based on space meshing |
| CN115879923A (en) * | 2022-11-22 | 2023-03-31 | 杭州青橄榄物联科技有限公司 | Rental air conditioner price evaluation method and system considering air conditioner energy consumption |
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| CN105066378A (en) * | 2015-09-11 | 2015-11-18 | 珠海格力电器股份有限公司 | Air conditioner and air conditioner air output control method |
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| CN109883019B (en) * | 2019-03-06 | 2021-08-03 | 广东美的暖通设备有限公司 | Air volume control method and device for air conditioning system |
| CN109883021A (en) * | 2019-03-06 | 2019-06-14 | 广东美的暖通设备有限公司 | The control method and air-conditioning system of air quantity |
| CN110017584B (en) * | 2019-03-13 | 2020-05-22 | 珠海格力电器股份有限公司 | Method and device for setting air damper of air conditioner and air conditioner |
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