Refrigerant outlet quantity control method, device, system, electronic device and air conditioning device

Abstract

The present application relates to a kind of refrigerant output control method, device, electronic equipment and air conditioning equipment, the method is by real-time obtaining target parameter data related to refrigerant quantity, to calculate evaporator load coefficient and condenser load coefficient in real time, and the target load coefficient of pre-set is obtained first adjustment coefficient of evaporator load coefficient and second adjustment coefficient of condenser load coefficient, the adjustment coefficient of two is combined, refrigerant quantity adjustment strategy is determined.Cold according to target parameter update adjustment strategy in real time can be adopted in this technical solution, realize the dynamic regulation and control of refrigerant quantity, solve the problem caused by refrigerant quantity fixed in prior art, improve the energy efficiency and comfort of air conditioning system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of control, in particular to a refrigerant output control method, device, system, electronic equipment and air conditioning equipment. BACKGROUND

[0002] In order to meet the requirements of people on indoor environment comfort, in the operation process of the air conditioning system, the air is adjusted by setting a fixed refrigerant amount. In actual use, the working load of the air conditioner will change significantly due to environmental temperature, number of indoor personnel, use time, function of different areas in the building and other factors. However, the traditional air conditioning system is difficult to accurately adjust the refrigerant amount according to these real-time changing loads, resulting in serious energy waste under part of the load working condition, and the indoor environment cannot provide stable and comfortable temperature and humidity, for example, when the refrigerant amount is too much, it may cause compressor overload, energy efficiency reduction, and even liquid strike phenomenon to damage the compressor; if the refrigerant amount is too small, it will cause poor refrigeration or heating effect, evaporator frosting and other problems, affecting the normal use of the air conditioner.

[0003] Therefore, how to adjust the refrigerant amount to improve the energy efficiency and comfort of the air conditioning system is a technical problem to be solved in the prior art. SUMMARY

[0004] Therefore, the purpose of the present application is to provide a refrigerant output control method, device, system, electronic equipment and air conditioning equipment to overcome the technical problem of low energy efficiency and comfort of the air conditioning system caused by the fixed refrigerant amount.

[0005] To achieve the above purpose, the present application adopts the following technical solutions:

[0006] In a first aspect, the present application provides a refrigerant output control method, which comprises:

[0007] Obtaining target parameter data related to the refrigerant amount, calculating the evaporator load coefficient and the condenser load coefficient according to the target parameter data;

[0008] Determining the evaporator target load coefficient and the condenser target load coefficient, and calculating the first adjustment coefficient of the evaporator load coefficient and the second adjustment coefficient of the condenser load coefficient according to the evaporator target load coefficient and the condenser target load coefficient;

[0009] Based on the first adjustment coefficient and the second adjustment coefficient, a refrigerant amount adjustment strategy is determined.

[0010] Optionally, the target parameter data related to the refrigerant amount is obtained, comprising:

[0011] The parameter data related to the refrigerant amount is obtained by a detection component;

[0012] Denoise the parameter data according to a moving average filtering method to obtain the target parameter data.

[0013] Optionally, the determining the evaporator target load factor and the condenser target load factor comprises:

[0014] determining air conditioner operation mode information, and determining the evaporator target load factor and the condenser target load factor corresponding to the air conditioner operation mode information in a preset air conditioner operation mode-load factor relationship according to the air conditioner operation mode information.

[0015] Optionally, the calculating the first adjustment factor of the evaporator load factor and the second adjustment factor of the condenser load factor according to the evaporator target load factor and the condenser target load factor comprises:

[0016] taking a ratio of the evaporator load factor and the evaporator target load factor as the first adjustment factor of the evaporator load factor; and

[0017] taking a ratio of the condenser load factor and the condenser target load factor as the second adjustment factor of the condenser load factor.

[0018] Optionally, the determining the refrigerant amount adjustment strategy based on the first adjustment factor and the second adjustment factor comprises:

[0019] weighting the first adjustment factor and the second adjustment factor to obtain a target adjustment factor, and determining the refrigerant amount adjustment strategy according to the target adjustment factor.

[0020] Optionally, the determining the refrigerant amount adjustment strategy according to the target adjustment factor comprises:

[0021] determining the refrigerant amount adjustment strategy according to a relationship between the target adjustment factor and an adjustment threshold value.

[0022] Optionally, the determining the refrigerant amount adjustment strategy according to the relationship between the target adjustment factor and the adjustment threshold value comprises:

[0023] if the target adjustment factor is greater than the adjustment threshold value, determining the refrigerant amount adjustment strategy as increasing the refrigerant amount;

[0024] if the target adjustment factor is less than the adjustment threshold value, determining the refrigerant amount adjustment strategy as decreasing the refrigerant amount.

[0025] Optionally, the determining the refrigerant amount adjustment strategy comprises:

[0026] if the refrigerant amount adjustment strategy is increasing the refrigerant amount, controlling a refrigerant adjusting device to open an outlet pressure valve;

[0027] If the refrigerant amount adjustment strategy is to reduce the refrigerant amount, the refrigerant adjusting device is controlled to open the inlet pressure valve.

[0028] In a second aspect, the present application provides a refrigerant outflow control device, comprising:

[0029] A first control module is configured to obtain target parameter data related to the refrigerant amount, and calculate an evaporator load factor and a condenser load factor based on the target parameter data.

[0030] A second control module is configured to determine an evaporator target load factor and a condenser target load factor, and calculate a first adjustment factor of the evaporator load factor and a second adjustment factor of the condenser load factor based on the evaporator target load factor and the condenser target load factor.

[0031] An adjustment module is configured to determine a refrigerant amount adjustment strategy based on the first adjustment factor and the second adjustment factor.

[0032] In a third aspect, the present application provides an electronic device comprising a processor and a memory, wherein the processor is connected to the memory.

[0033] The processor is configured to call and execute a program stored in the memory.

[0034] The memory is configured to store the program, and the program is used to execute any of the above methods.

[0035] In a fourth aspect, the present application provides a refrigerant outflow control system, comprising a refrigerant adjusting device and the electronic device described above.

[0036] The refrigerant adjusting device comprises a refrigerant storage device, an outlet pressure valve, and an inlet pressure valve, wherein the outlet pressure valve and the inlet pressure valve are connected to the refrigerant storage device.

[0037] The electronic device is configured to control the opening and closing of the outlet pressure valve and the inlet pressure valve according to any of the above methods.

[0038] In a fourth aspect, the present application provides an air conditioning device comprising a refrigerant outflow control device, wherein the refrigerant outflow control device is configured to execute any of the above methods.

[0039] The refrigerant output control method, device, system, electronic equipment and air conditioning equipment of the present application, by acquiring target parameter data related to refrigerant output in real time, calculate the evaporator load coefficient and the condenser load coefficient in real time, and obtain the first adjustment coefficient of the evaporator load coefficient and the second adjustment coefficient of the condenser load coefficient by combining the preset target load coefficient, combine the two adjustment coefficients to determine the refrigerant output adjustment strategy. By using the technical solution, the adjustment strategy can be updated in real time according to the target parameter, the dynamic regulation and control of the refrigerant output is realized, the problems caused by the fixed refrigerant output in the prior art are solved, and the energy efficiency and comfort of the air conditioning system are improved. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0041] Figure 1 A flowchart of a refrigerant output control method provided by an embodiment of the present application is shown in the figure.

[0042] Figure 2 A working schematic diagram of a one-way valve provided by an embodiment of the present application is shown in the figure.

[0043] Figure 3 A structural schematic diagram of a refrigerant output control device provided by an embodiment of the present application is shown in the figure.

[0044] Figure 4 A structural schematic diagram of a refrigerant output control system provided by an embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solutions and advantages of the present application more clear, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0046] It can be understood that the same or similar parts in the above embodiments can be mutually referred to, and the contents not described in detail in some embodiments can be referred to the same or similar contents in other embodiments.

[0047] It should be noted that in the description of the present application, the terms "first", "second" and the like are used only for descriptive purposes, and cannot be understood as indicating or implying relative importance. In addition, in the description of the present application, unless otherwise specified, the meaning of "a plurality of" is at least two.

[0048] Any process or method descriptions in flow charts or described elsewhere herein can be understood as representing code modules, segments, or portions of code that include one or more executable instructions for implementing specific logic functions (or steps) in the process, and the various embodiments of the present application include additional implementations in which the functions are performed in different orders, in substantially simultaneous fashion, or in reverse order, and other implementations in which different functions are performed, as will be understood by those skilled in the art of the embodiments to which the present application pertains.

[0049] The conventional air conditioning system usually adopts the setting mode of fixed refrigerant amount. In actual operation process, the working load of the air conditioner is affected by many factors, such as the change of environmental temperature, the increase and decrease of indoor personnel number, the difference of use time and the difference of functions of different areas in the building. However, due to the fact that the refrigerant amount cannot be adjusted according to the real-time changing load, unreasonable energy utilization occurs in many working conditions.

[0050] The energy-saving air conditioning system of the present application effectively solves this problem by means of dynamic refrigerant amount control technology. With the help of various high-precision sensors (refrigerant flow sensor, pressure sensor, temperature sensor) installed at key positions, the running parameters of the air conditioning system can be monitored in real time, such as refrigerant flow, evaporator and condenser inlet and outlet pressure, environmental temperature, evaporator and condenser surface temperature, etc. The intelligent controller calculates and dynamically adjusts the refrigerant amount according to these real-time data and combines the preset control algorithm, so that it can be matched with the actual working load in the actual application scene.

[0051] Based on this, the embodiment of the present application provides a refrigerant output control method, device, system, electronic equipment and air conditioning equipment, which can improve the energy efficiency and comfort of the air conditioning system by dynamically adjusting the refrigerant amount.

[0052] Figure 1 A flowchart of a refrigerant output control method provided by an embodiment of the present application is shown in Figure 1 The refrigerant output control method provided by the embodiment of the present application can include the following steps:

[0053] S101, obtaining target parameter data related to the refrigerant amount, calculating the evaporator load coefficient and the condenser load coefficient according to the target parameter data;

[0054] S102, determine the evaporator target load coefficient and the condenser target load coefficient, and calculate the first adjustment coefficient of the evaporator load coefficient and the second adjustment coefficient of the condenser load coefficient according to the evaporator target load coefficient and the condenser target load coefficient;

[0055] S103, based on the first adjustment coefficient and the second adjustment coefficient, determine the refrigerant quantity adjustment strategy.

[0056] In this embodiment, the target parameter data can include refrigerant flow, evaporator inlet and outlet pressure values, condenser inlet and outlet pressure values, ambient temperature, evaporator surface temperature, condenser surface temperature, etc. In the air conditioning system, the required target parameter data can be obtained by arranging corresponding sensors.

[0057] Specifically, in this embodiment, the setting and selection of sensors are described as follows:

[0058] A thermal refrigerant flow sensor can be selected, such as the thermal flow sensor series product of Honeywell. The reason for selection is as follows: high-precision measurement: the thermal refrigerant flow sensor uses advanced thermal principles for flow measurement, has high measurement precision, and can usually achieve a measurement precision of ±0.5%. By accurately measuring the flow rate and pipe cross-sectional area of the refrigerant, the real-time flow rate of the refrigerant can be accurately calculated using the flow formula (flow rate = flow rate x cross-sectional area), which provides accurate data support for the control of the air conditioning system, which is crucial for realizing accurate refrigerant quantity adjustment. Non-contact measurement: the measurement method is non-contact, i.e. without direct contact with the refrigerant for measurement. This avoids corrosion, blockage and other problems that may be caused by contact with the refrigerant, prolongs the service life of the sensor, and reduces the risk of system downtime caused by sensor failure, improving the reliability of the system. Adapt to multiple refrigerants: can adapt to multiple types of refrigerants, whether it is common freon refrigerant or new environmentally friendly refrigerant, etc. The thermal refrigerant flow sensor can work normally and has wide applicability. This makes it unnecessary to replace the sensor when the air conditioning system is replaced or upgraded, reducing system maintenance costs and upgrade difficulty. Real-time monitoring: the flow rate of the refrigerant can be monitored in real time, and the measured data can be transmitted to the intelligent controller in real time. Through this real-time monitoring function, the air conditioning system can timely understand the change of the refrigerant quantity, and make corresponding control adjustments according to the real-time data to ensure the stable operation and energy-saving effect of the air conditioning system.

[0059] Pressure sensor selection and reasons: selection: pressure resistance type pressure sensor can be selected, such as Bosch pressure resistance type pressure sensor series products; Selection reasons: high precision pressure monitoring: pressure resistance type pressure sensor uses the pressure resistance effect of semiconductor materials to measure pressure, with high measurement accuracy, usually can reach ± 0.1% measurement accuracy can accurately reflect the pressure change of key parts in the system, such as evaporator inlet and outlet, condenser inlet and outlet, etc. The pressure change of the parts provides accurate data support for the control of air conditioning system, which is essential for accurate refrigerant quantity adjustment and system operation state monitoring Good stability: its structure is relatively simple, the internal semiconductor materials and circuit are tested and optimized strictly, and it shows good stability in long-term use. It can maintain stable pressure measurement function under different environmental conditions, such as different temperature, humidity, etc. It will not appear obvious pressure measurement deviation or work abnormality due to environmental factors change, etc. It ensures the stable operation of air conditioning system. Adapt to a variety of environments: can adapt to a variety of different environmental conditions, whether in high temperature, low temperature, high humidity or low humidity environment, pressure resistance type pressure sensor can work normally. At the same time, it can also adapt to different types of air conditioning system, such as household air conditioner, commercial air conditioner, etc. It has wide applicability, which provides guarantee for the diversification of air conditioning system. Real-time monitoring and feedback: it can monitor the pressure of key parts in the system in real time, and transmit the measurement data to intelligent controller in real time. Through this real-time monitoring and feedback function, air conditioning system can know the pressure change in time, and make corresponding control adjustment according to real-time data, to ensure the stable operation and energy saving effect of air conditioning system.

[0060] Temperature sensor selection and reasons: selection: can be used thermocouple or thermal resistance temperature sensor, such as Omega (Omega) related thermocouple and thermal resistance temperature sensor products; selection reasons: high precision temperature measurement: thermocouple temperature sensor based on thermoelectric effect, thermal resistance temperature sensor based on the resistance of metal materials changes with temperature changes of the characteristics of temperature measurement, they have higher measurement accuracy, usually can reach ± 0.2 ℃ measurement accuracy can accurately reflect the temperature of the system of key parts, such as ambient temperature, evaporator surface temperature, condenser surface temperature and other parts of the temperature change, for the control of air conditioning system provides accurate data support, which is important for the realization of precise refrigerant quantity adjustment and system operation state monitoring of high reliability: thermocouple and thermal resistance temperature sensor manufacturing process is relatively mature, its structure and performance in the long-term use of the process shows good stability can be in different environmental conditions, such as different time, temperature, humidity, etc., maintain stable temperature measurement function, will not be due to environmental factors change and appear obvious temperature measurement deviation or work abnormality, etc. Problem, ensure the stable operation of air conditioning system adapt to a variety of environments: can adapt to a variety of different environmental conditions, whether in high temperature, low temperature, high humidity or low humidity environment, thermocouple and thermal resistance temperature sensor can work normally, at the same time, it can also adapt to different types of air conditioning system, such as household air conditioner, commercial air conditioner, etc., has wide applicability, for the diversification of air conditioning system provides protection real-time monitoring and feedback: can real-time monitoring of the temperature of the system of key parts, and the measured data real-time transmission to the intelligent controller through this real-time monitoring and feedback function, air conditioning system can understand the temperature change, according to the real-time data for corresponding control adjustment, ensure the stable operation and energy saving effect of air conditioning system.

[0061] Smart controller selection and reasons: selection: Texas Instruments (Texas Instruments) TMS320F28335 DSP chip is selected as the smart controller chip of the energy-saving air conditioning system. The reason for selection: strong computing power: in the energy-saving air conditioning system, a large amount of data from multiple sensors (such as refrigerant flow sensor, pressure sensor, temperature sensor, etc.) needs to be processed in real time, including refrigerant flow value, evaporator and condenser inlet and outlet pressure value, ambient temperature value, evaporator and condenser surface temperature value, etc. TMS320F28335 DSP chip has strong digital signal processing capability and computing power, which can quickly calculate and analyze these massive data. For example, according to the heat transfer principle, the load coefficient of the evaporator and the condenser is calculated, and according to different air conditioning working modes (cooling or heating) and the set target load coefficient range, the refrigerant quantity adjustment coefficient is further calculated. The chip needs to have high computing performance to complete these complex calculation tasks in a short time, so as to accurately determine the appropriate refrigerant quantity adjustment strategy to meet the stringent requirements of the energy-saving air conditioning system for real-time data processing and control decision.

[0062] In this embodiment, the data is transmitted in the form of an electrical signal.

[0063] It can be understood that the technical solution described in this embodiment acquires target parameter data related to refrigerant quantity in real time, thereby calculating the evaporator load coefficient and the condenser load coefficient in real time, and obtaining the first adjustment coefficient of the evaporator load coefficient and the second adjustment coefficient of the condenser load coefficient in combination with the preset target load coefficient. The two adjustment coefficients are combined to determine the refrigerant quantity adjustment strategy. By using this technical solution, the adjustment strategy can be updated in real time according to the target parameters, dynamic regulation and control of the refrigerant quantity is realized, the problems caused by the fixed refrigerant quantity in the prior art are solved, and the energy efficiency and comfort of the air conditioning system are improved.

[0064] In some embodiments, the target parameter data related to the refrigerant quantity is acquired, including:

[0065] The parameter data related to the refrigerant quantity is acquired by a detection component;

[0066] The parameter data is denoised according to the moving average filtering method to obtain the target parameter data.

[0067] In order to ensure the accuracy of the data, the data can be denoised. For example, the current refrigerant flow value Qcurrent is acquired from the refrigerant flow sensor, which reflects the real-time flow of the refrigerant in the system; the evaporator inlet pressure and outlet pressure and the condenser inlet pressure and export pressure (export low pressure) These pressure data can help analyze the working state of the evaporator and the condenser; at the same time, the ambient temperature is obtained from the ambient temperature sensor The evaporator surface temperature T is obtained from the evaporator surface temperature sensor enap The condenser surface temperature is obtained from the condenser surface temperature sensor These temperature data provide an important basis for the control of the system under different working conditions.

[0068] The pre-processing of these data adopts a moving average filtering method to remove noise interference, for example, setting the window size n = 5, then the filtered refrigerant flow value Q filtered .

[0069] The calculation formula is:

[0070]

[0071] Where i is the i-th data, and n is the window size.

[0072] Similarly, the pressure data and temperature data are also subjected to similar filtering processing to obtain the filtered evaporator inlet pressure Evaporator outlet pressure Condenser inlet pressure Condenser outlet pressure Ambient temperature Evaporator surface temperature T enap And condenser surface temperature The data after filtering processing is more stable and accurate, which lays a good foundation for the subsequent accurate control operation.

[0073] In this application, the calculation of the evaporator load coefficient according to the filtered data, and the calculation of the condenser load coefficient are described:

[0074] The load coefficient of the evaporator: K evap :

[0075]

[0076] Where Q filterd (t) is the refrigerant flow value at time t after filtering processing, which reflects the current refrigerant flow into the evaporator;

[0077] And are the evaporator inlet pressure and outlet pressure at time t after filtering processing, and their difference reflects the pressure drop of the refrigerant inside the evaporator, which is closely related to the heat exchange process of the evaporator;

[0078] A evap is the heat exchange area of the evaporator, which is an inherent attribute parameter of the evaporator, representing the effective surface area of the evaporator for heat exchange with the outside world (usually indoor air). Different types and specifications of evaporators have different heat exchange areas, which are determined during the design and manufacturing stage of the evaporator.

[0079] The load coefficient K of the condenser cond :

[0080]

[0081] The above formula comprehensively considers the refrigerant flow rate, the pressure difference between the inlet and outlet of the evaporator, and the heat exchange area of the evaporator itself, to accurately quantify the load of the evaporator at the current time, providing an important reference for subsequent determination of whether to adjust the refrigerant quantity and the adjustment range;

[0082] and are the filtered low-pressure pressure and inlet pressure of the condenser at time t, respectively. The difference between them reflects the pressure drop of the refrigerant inside the condenser, which is closely related to the heat exchange process of the condenser;

[0083] A evap is the heat exchange area of the condenser, which is also an inherent attribute parameter of the condenser, used to represent the effective surface area of the condenser for heat exchange with the outside world (usually outdoor air). Different types and specifications of condensers have different heat exchange areas, which are determined during the design and manufacturing stage of the condenser

[0084] By calculating the load coefficient of the condenser, the load degree of the condenser under the current operating state can be understood, which is one of the key bases for further determining the refrigerant quantity adjustment strategy.

[0085] It can be understood that the technical solution provided by the embodiment can realize data denoising and improve data accuracy.

[0086] In some embodiments, the determination of the target load coefficient of the evaporator and the target load coefficient of the condenser comprises:

[0087] Determining air conditioner operating mode information, and determining the target load coefficient of the evaporator and the target load coefficient of the condenser corresponding to the air conditioner operating mode information in the preset air conditioner operating mode and load coefficient relationship according to the air conditioner operating mode information.

[0088] For example, the user-set air conditioner operating mode information can be obtained, and the air conditioner operating mode information can be a cooling mode or a heating mode.

[0089] The evaporator target load coefficient in the cooling mode can be preset as The range can be [0, b1] (unit: W / m 2 ); and the condenser target load coefficient The range is [0, b2] (unit: W / m 2 ). Wherein, b1, b2 can be 80%, 85%, etc., which are not specifically limited in the present application.

[0090] The evaporator target load coefficient in the heating mode can be preset as [0, d1] (unit: W / m 2 ); and the condenser target load coefficient can be preset as [0, d2] (unit: W / m 2 ). Wherein, d1, d2 can be 80%, 85%, etc., which are not specifically limited in the present application.

[0091] It can be understood that the technical solution provided by the embodiment of the present application can quickly determine the evaporator target load coefficient and the condenser target load coefficient.

[0092] In some embodiments, the first adjustment coefficient of the evaporator load coefficient and the second adjustment coefficient of the condenser load coefficient are calculated according to the evaporator target load coefficient and the condenser target load coefficient, comprising:

[0093] The ratio of the evaporator load coefficient and the evaporator target load coefficient is taken as the first adjustment coefficient of the evaporator load coefficient; and

[0094] The ratio of the condenser load coefficient and the condenser target load coefficient is taken as the second adjustment coefficient of the condenser load coefficient.

[0095] For example, the first adjustment coefficient Cevap can be calculated by the following formula:

[0096]

[0097] Wherein:

[0098] K evap is the actual load coefficient of the evaporator, i.e. the evaporator load coefficient, which is calculated above;

[0099] is the evaporator target load coefficient set according to the current air conditioner working mode.

[0100] The second adjustment coefficient C cond can be calculated by the following formula:

[0101]

[0102] Wherein, K condis the actual load coefficient of the condenser calculated in the foregoing, i.e., the condenser load coefficient;

[0103] is the target load coefficient of the condenser set according to the current air conditioner working mode.

[0104] It can be understood that, through the ratio relationship, the accurate first adjustment coefficient and the second adjustment coefficient can be obtained.

[0105] In some embodiments, the refrigerant quantity adjustment strategy is determined based on the first adjustment coefficient and the second adjustment coefficient, including:

[0106] The first adjustment coefficient and the second adjustment coefficient are weighted and set to obtain a target adjustment coefficient, and the refrigerant quantity adjustment strategy is determined according to the target adjustment coefficient.

[0107] In some embodiments, the refrigerant quantity adjustment strategy is determined according to the target adjustment coefficient, including:

[0108] The refrigerant quantity adjustment strategy is determined according to the relationship between the target adjustment coefficient and an adjustment threshold.

[0109] For example, in order to more comprehensively and accurately determine the adjustment strategy of the refrigerant quantity of the air conditioning system, the refrigerant quantity adjustment coefficients of the evaporator and the condenser need to be comprehensively considered to determine the final refrigerant quantity adjustment coefficient, and the corresponding adjustment instruction is generated accordingly. The target adjustment coefficient C total :

[0110] The weighted average method is used to comprehensively consider the evaporator and the condenser, the weight of the evaporator is w1, and the weight of the condenser is w2 (which can be set according to the actual characteristics and experience of the system, such as w1=0.6, w1=0.4), and the calculation formula of the target adjustment coefficient is:

[0111] C total = w1*C evap + w1*C cond

[0112] It can be understood that the weighted average method can more comprehensively consider the actual situation of the evaporator and the condenser, so that the finally determined refrigerant quantity adjustment coefficient is more reasonable and accurate, and the problem of one-sidedness caused by simply adjusting the refrigerant quantity according to the situation of a single component is avoided.

[0113] In some embodiments, the refrigerant quantity adjustment strategy is determined according to the relationship between the target adjustment coefficient and an adjustment threshold, including:

[0114] If the target adjustment coefficient is greater than the adjustment threshold, the refrigerant quantity adjustment strategy is determined to be increasing the refrigerant quantity;

[0115] If the target adjustment coefficient is less than an adjustment threshold, it is determined that the refrigerant amount adjustment strategy is to reduce the refrigerant amount.

[0116] For example, according to C total The adjustment threshold can be 1:

[0117] If C total > 1, it indicates that the current refrigerant amount is insufficient, and the refrigerant amount needs to be increased. The actuator can be controlled to increase the opening, or the actuator can be controlled to increase the refrigerant amount through other ways;

[0118] If C total < 1, it indicates that the current refrigerant amount is excessive, and the refrigerant amount needs to be reduced. The actuator can be controlled to reduce the opening, or the actuator can be controlled to reduce the refrigerant amount through other ways;

[0119] If C total = 1, the current refrigerant amount is maintained, and the opening is unchanged. The actuator can also be controlled to maintain the refrigerant amount unchanged through other ways.

[0120] It can be understood that in this way, the refrigerant amount adjustment instruction can be accurately issued according to the actual operation of the system, and the refrigerant amount of the air conditioning system can be ensured to always remain at an appropriate level, so as to achieve the goals of high efficiency, energy saving, and indoor environmental comfort.

[0121] In some embodiments, the determination of the refrigerant amount adjustment strategy includes:

[0122] If the refrigerant amount adjustment strategy is to increase the refrigerant amount, the refrigerant adjusting device is controlled to open the outlet pressure valve;

[0123] If the refrigerant amount adjustment strategy is to reduce the refrigerant amount, the refrigerant adjusting device is controlled to open the inlet pressure valve.

[0124] Specifically, the refrigerant adjusting device can include a refrigerant storage device, an outlet pressure valve, and an inlet pressure valve. The outlet pressure valve and the inlet pressure valve are respectively connected to the refrigerant storage device.

[0125] The refrigerant storage device can be used to store objects that need to be collected or discharged. The outlet pressure valve and the inlet pressure valve are both one-way valves. The inlet one-way valve only allows substances to enter the storage container from the outside, preventing internal substances from flowing out, i.e., only allowing the refrigerant to flow from the air conditioning system to the refrigerant storage system. When the operating system pressure is greater than the storage system, the valve opens, and the refrigerant enters the storage system. The outlet one-way valve only allows substances to flow out of the storage container to the outside, preventing external substances from flowing into the container, i.e., only allowing the refrigerant to flow from the refrigerant system to the air conditioning operating system. When the operating system pressure is less than the storage system, the valve opens, and the refrigerant flows out of the storage system.

[0126] Referring to Figure 2 , Figure 2 A one-way valve working schematic diagram provided by an embodiment of the present application is shown in Figure 2 , which realizes the function of the one-way valve.

[0127] When it is necessary to increase the refrigerant amount, the pressure in the refrigerant storage device is reduced, so that the external pressure is greater than the internal pressure, and the substance is sucked into the refrigerant storage device through the inlet one-way valve. When it is necessary to reduce the refrigerant amount, the pressure in the refrigerant storage device is increased, so that the internal pressure is greater than the external pressure, and the substance is discharged from the refrigerant storage device through the outlet one-way valve.

[0128] The refrigerant storage device contains a piston, and the volume inside the refrigerant storage device can be changed by changing the position of the piston, so as to further change the pressure and realize the control of the pressure. In the specific calculation process, the Boyle-Mariotte law can be referred to, which can be expressed as:

[0129] The pressure of a certain amount of ideal gas is inversely proportional to the volume under the condition that the temperature and the amount of the substance remain unchanged.

[0130] The mathematical expression is:

[0131] P1*V1=P2*V2

[0132] Wherein:

[0133] P1 and V1 are the pressure and volume in the initial state, respectively.

[0134] P2 and V2 are the pressure and volume in the final state, respectively.

[0135] Application of the formula: pressure change: when the volume of the gas decreases, the pressure increases; on the contrary, when the volume of the gas increases, the pressure decreases.

[0136] Volume change: when the pressure of the gas increases, the volume decreases; on the contrary, when the pressure of the gas decreases, the volume increases.

[0137] It can be understood that the embodiment provided by the present application acquires target parameter data related to the refrigerant amount in real time, so as to calculate the evaporator load coefficient and the condenser load coefficient in real time, and obtains a first adjustment coefficient of the evaporator load coefficient and a second adjustment coefficient of the condenser load coefficient in combination with the preset target load coefficient. The two adjustment coefficients are combined to determine the refrigerant amount adjustment strategy. By using the technical solution, the adjustment strategy can be updated in real time according to the target parameter, dynamic regulation and control of the refrigerant amount are realized, the problems caused by the fixed refrigerant amount in the prior art are solved, and the energy efficiency and comfort of the air conditioning system are improved.

[0138] Based on a general inventive concept, the application further provides a refrigerant output control device for implementing the above-mentioned method embodiments. Figure 3 FIG. 1 is a schematic structural diagram of a refrigerant output control device according to an embodiment of the application. Figure 3 The device comprises:

[0139] A first control module 100 is configured to acquire target parameter data related to the refrigerant output, and calculate an evaporator load factor and a condenser load factor based on the target parameter data.

[0140] A second control module 110 is configured to determine an evaporator target load factor and a condenser target load factor, and calculate a first adjustment factor of the evaporator load factor and a second adjustment factor of the condenser load factor based on the evaporator target load factor and the condenser target load factor.

[0141] An adjustment module 120 is configured to determine a refrigerant output adjustment strategy based on the first adjustment factor and the second adjustment factor.

[0142] Optionally, the first control module 100 is specifically configured to acquire parameter data related to the refrigerant output by a detection component, and to denoise the parameter data by a sliding average filtering method to obtain the target parameter data.

[0143] Optionally, the second control module 110 is specifically configured to determine air conditioner operation mode information, and to determine the evaporator target load factor and the condenser target load factor corresponding to the air conditioner operation mode information in a preset air conditioner operation mode and load factor relationship based on the air conditioner operation mode information.

[0144] Optionally, the second control module 110 is specifically configured to take the ratio of the evaporator load factor and the evaporator target load factor as the first adjustment factor of the evaporator load factor, and

[0145] Optionally, the second control module 110 is specifically configured to take the ratio of the condenser load factor and the condenser target load factor as the second adjustment factor of the condenser load factor.

[0146] Optionally, the adjustment module 120 is specifically configured to weight and set the first adjustment factor and the second adjustment factor to obtain a target adjustment factor, and to determine the refrigerant output adjustment strategy based on the target adjustment factor.

[0147] Optionally, the adjustment module 120 is specifically configured to determine the refrigerant output adjustment strategy based on the relationship between the target adjustment factor and an adjustment threshold.

[0148] Optionally, the adjusting module 120 is specifically configured to determine that the refrigerant amount adjustment strategy is to increase the refrigerant amount if the target adjustment coefficient is greater than an adjustment threshold, and determine that the refrigerant amount adjustment strategy is to decrease the refrigerant amount if the target adjustment coefficient is less than the adjustment threshold.

[0149] As to the apparatus in the above-mentioned embodiments, the specific manners in which the respective modules perform operations have been described in detail in the embodiments of the method, and thus will not be described in detail here.

[0150] Corresponding to the above-mentioned sterilization function control method, the embodiments of the present application further disclose an electronic device, referring to Figure 4 As shown in the figure, the electronic device comprises:

[0151] a memory 200 and a processor 210;

[0152] The memory 200 is connected with the processor 210, and is configured to store programs.

[0153] The processor 210 is configured to realize the refrigerant output control method disclosed in any of the above-mentioned embodiments by running the programs stored in the memory 200.

[0154] Specifically, the above-mentioned electronic device can further comprise a bus, a communication interface 220, an input device 230 and an output device 240.

[0155] The processor 210, the memory 200, the communication interface 220, the input device 230 and the output device 240 are connected with each other through the bus. Among them:

[0156] The bus can comprise a path for transmitting information between various components of the computer system.

[0157] The processor 210 can be a general-purpose processor, such as a general-purpose central processing unit (CPU), a microprocessor, etc., or can be an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of programs of the present application. It can also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a ready-to-use programmable gate array (FPGA) or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component.

[0158] The processor 210 can include a main processor, and can further include a baseband chip, a modem, etc.

[0159] The memory 200 stores programs for implementing the technical solutions of the present application, and can also store operating systems and other key services. Specifically, the programs can include program codes, and the program codes include computer operation instructions. More specifically, the memory 200 can include a read-only memory (ROM), other types of static storage devices that can store static information and instructions, a random access memory (RAM), other types of dynamic storage devices that can store information and instructions, a disk memory, a flash, and the like.

[0160] The input device 230 can include devices that receive data and information input by a user, such as a keyboard, a mouse, a camera, a scanner, a light pen, a voice input device, a touch screen, a pedometer, or a gravity sensor, and the like.

[0161] The output device 240 can include devices that allow information to be output to a user, such as a display screen, a printer, a speaker, and the like.

[0162] The communication interface 220 can include devices using any transceiver to communicate with other devices or communication networks, such as an Ethernet, a radio access network (RAN), a wireless local area network (WLAN), and the like.

[0163] The processor 210 executes the programs stored in the memory 200 and calls other devices, which can be used to implement each step of the refrigerant output control method provided by the above-mentioned embodiments of the present application.

[0164] Further, one embodiment of the present application provides an air conditioning device, which includes a refrigerant output control device configured to implement each step of the refrigerant output control method provided by the above-mentioned embodiments of the present application.

[0165] The air conditioning device provided by the present embodiment belongs to the same application concept as the refrigerant output control method provided by the above-mentioned embodiments of the present application, can execute the refrigerant output control method provided by any of the above-mentioned embodiments of the present application, has the corresponding functional modules and technical details not described in detail in the present embodiment for executing the refrigerant output control method, and can refer to the specific processing content of the refrigerant output control method provided by the above-mentioned embodiments of the present application, which will not be described here.

[0166] Figure 4 FIG. 1 is a structural schematic diagram of a refrigerant output control system according to an embodiment of the present application. Figure 4 The refrigerant output control system provided by the present embodiment includes a refrigerant adjusting device and the electronic device described above.

[0167] The refrigerant conditioning device comprises a refrigerant storage device, an outlet pressure valve, and an inlet pressure valve, wherein the outlet pressure valve and the inlet pressure valve are connected to the refrigerant storage device respectively.

[0168] The electronic device is configured to control the opening and closing of the outlet pressure valve and the inlet pressure valve according to any of the above methods.

[0169] Those skilled in the art can understand that all or part of the steps of the above-mentioned embodiment methods can be completed by programs instructing related hardware, and the programs can be stored in a computer readable storage medium. When the program is executed, it includes one of the steps of the method embodiment or a combination thereof.

[0170] In addition, each functional unit in each embodiment of the present application can be integrated into one processing module, or each unit can exist physically independently, or two or more units can be integrated into one module. The integrated module can be realized in the form of hardware or in the form of a software functional module. When the integrated module is realized in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer readable storage medium.

[0171] The storage medium mentioned above can be a read-only memory, a magnetic disk or an optical disk, etc.

[0172] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0173] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and should not be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A refrigerant output control method, characterized in that: The method comprises: Obtain target parameter data related to the refrigerant quantity, and calculate the evaporator load factor and condenser load factor based on the target parameter data. The target parameter data includes: refrigerant flow value, evaporator inlet pressure, evaporator outlet pressure, condenser inlet pressure and condenser outlet low pressure; evaporator load factor : Condenser load factor : in, is the refrigerant flow value at time t after filtering, and are the filtered inlet and outlet pressures of the evaporator at time t, is the heat exchange area of ​​the evaporator, is the heat exchange area of ​​the condenser; and are the condenser outlet low pressure and inlet pressure at time t after filtering; determining an evaporator target load factor and a condenser target load factor, and calculating a first adjustment factor of the evaporator load factor based on the evaporator load factor and the evaporator target load factor; and calculating a second adjustment factor of the condenser load factor based on the condenser load factor and the condenser target load factor; A refrigerant quantity adjustment strategy is determined based on the first adjustment coefficient and the second adjustment coefficient.

2. The method according to claim 1, characterized in that The obtaining of target parameter data related to the refrigerant quantity includes: Obtain parameter data related to the refrigerant quantity through the detection component; The parameter data is denoised according to a sliding average filtering method to obtain the target parameter data.

3. The method according to claim 1, characterized in that The determining of the evaporator target load factor and the condenser target load factor includes: Air conditioning operation mode information is determined, and according to the air conditioning operation mode information, an evaporator target load factor and a condenser target load factor corresponding to the air conditioning operation mode information are determined in a preset relationship between the air conditioning operation mode and the load factor.

4. The method according to claim 1, wherein calculating a first adjustment coefficient of the evaporator load factor according to the evaporator load factor and the evaporator target load factor; And, calculating the second adjustment coefficient of the condenser load factor according to the condenser load factor and the condenser target load factor includes: using a ratio of the evaporator load factor to the evaporator target load factor as a first adjustment coefficient of the evaporator load factor; as well as, The ratio of the condenser load factor to the condenser target load factor is used as the second adjustment factor of the condenser load factor.

5. The method according to claim 1, wherein The determining of the refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient includes: The first adjustment coefficient and the second adjustment coefficient are weighted to obtain a target adjustment coefficient, and a refrigerant quantity adjustment strategy is determined according to the target adjustment coefficient.

6. The method according to claim 5, characterized in that Determining the refrigerant quantity adjustment strategy according to the target adjustment coefficient includes: A refrigerant quantity adjustment strategy is determined based on the relationship between the target adjustment coefficient and the adjustment threshold.

7. The method according to claim 6, characterized in that The determining of the refrigerant quantity adjustment strategy according to the relationship between the target adjustment coefficient and the adjustment threshold includes: If the target adjustment coefficient is greater than the adjustment threshold, determining that the refrigerant quantity adjustment strategy is to increase the refrigerant quantity; If the target adjustment coefficient is less than the adjustment threshold, the refrigerant quantity adjustment strategy is determined to be reducing the refrigerant quantity.

8. The method according to any one of claims 1 to 7, characterized in that: The determining of the refrigerant quantity adjustment strategy includes: If the refrigerant quantity adjustment strategy is to increase the refrigerant quantity, controlling the refrigerant regulating device to open the outlet pressure valve; If the refrigerant quantity adjustment strategy is to reduce the refrigerant quantity, the refrigerant regulating device is controlled to open the inlet pressure valve.

9. A refrigerant output control device, characterized in that: The device comprises: The first control module is used to obtain target parameter data related to the refrigerant quantity and calculate the evaporator load factor and the condenser load factor according to the target parameter data; the target parameter data includes: refrigerant flow value, evaporator inlet pressure, evaporator outlet pressure, condenser inlet pressure and condenser outlet low pressure; evaporator load factor : Condenser load factor : in, is the refrigerant flow value at time t after filtering, and are the filtered inlet and outlet pressures of the evaporator at time t, is the heat exchange area of ​​the evaporator, is the heat exchange area of ​​the condenser; and are the condenser outlet low pressure and inlet pressure at time t after filtering; a second control module, configured to determine an evaporator target load factor and a condenser target load factor, and calculate a first adjustment factor for the evaporator load factor based on the evaporator load factor and the evaporator target load factor; and calculate a second adjustment factor for the condenser load factor based on the condenser load factor and the condenser target load factor; The adjustment module is configured to determine a refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient.

10. An electronic device, characterized in that: The device comprises a processor and a memory, wherein the processor is connected to the memory: The processor is configured to call and execute the program stored in the memory; The memory is used to store the program, and the program is at least used to execute the method according to any one of claims 1 to 8.

11. A refrigerant output control system, characterized in that: include: A refrigerant conditioning device and the electronic device according to claim 10; The refrigerant regulating device includes a refrigerant storage device, an outlet pressure valve, and an inlet pressure valve, wherein the outlet pressure valve and the inlet pressure valve are respectively connected to the refrigerant storage device; The electronic device is used to control the opening and closing of the outlet pressure valve and the inlet pressure valve according to the method according to any one of claims 1-8.

12. An air conditioning device, characterized in that: The invention comprises a refrigerant output control device; the refrigerant output control device is configured to be able to execute the method according to any one of claims 1 to 8.

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