Refrigerant output control method, device and system, electronic equipment and air conditioning equipment

Abstract

The invention relates to a refrigerant output control method and device, electronic equipment and air conditioning equipment. According to the method, target parameter data related to the refrigerant amount is obtained in real time, and therefore the load coefficient of an evaporator and the load coefficient of a condenser are calculated in real time; and a first adjustment coefficient of an evaporator load coefficient and a second adjustment coefficient of a condenser load coefficient are obtained in combination with a preset target load coefficient, and the two adjustment coefficients are combined to determine a refrigerant amount adjustment strategy. By the adoption of the technical scheme, the adjustment strategy can be updated in real time according to the target parameters, dynamic regulation and control over the refrigerant amount are achieved, the problem caused by the fixed refrigerant amount in the prior art is solved, and the energy efficiency and comfort of an air conditioning system are improved.

Description

Technical Field

[0001] The present invention relates to the field of control technology, and in particular to a refrigerant output control method, device, system, electronic equipment and air-conditioning equipment. Background Art

[0002] In order to meet people's requirements for indoor environmental comfort, the air is regulated by setting a fixed amount of refrigerant during the operation of the air conditioning system. In actual use, the workload of the air conditioner will change significantly due to many factors such as ambient temperature, number of people indoors, usage time, functions of different areas in the building, etc. However, it is difficult for traditional air conditioning systems to accurately adjust the amount of refrigerant according to these real-time changing load conditions, resulting in serious energy waste under partial load conditions, and failing to provide a stable and comfortable temperature and humidity environment indoors. For example, when the amount of refrigerant is too much, it may cause compressor overload, reduced energy efficiency, or even liquid hammer phenomenon that damages the compressor; too little refrigerant will lead to poor cooling or heating effects, evaporator frosting and other problems, affecting the normal use of the air conditioner.

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

[0004] In view of this, an object of the present invention is to provide a refrigerant output control method, device, system, electronic equipment and air-conditioning equipment to overcome the current technical problems of low energy efficiency and comfort of air-conditioning systems caused by fixed refrigerant quantity.

[0005] To achieve the above objectives, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present application provides a method for controlling the output of a refrigerant, the method comprising:

[0007] Acquiring target parameter data related to the amount of refrigerant, and calculating an evaporator load factor and a condenser load factor according to the target parameter data;

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

[0009] A refrigerant quantity adjustment strategy is determined based on the first adjustment coefficient and the second adjustment coefficient.

[0010] Optionally, the obtaining of target parameter data related to the amount of refrigerant includes:

[0011] Obtain parameter data related to the amount of refrigerant through the detection component;

[0012] The parameter data is denoised according to a sliding average filtering method to obtain the target parameter data.

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

[0014] The air-conditioning operation mode information is determined, and according to the air-conditioning operation mode information, the evaporator target load factor and the 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.

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

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

[0017] 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.

[0018] Optionally, determining the refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient includes:

[0019] 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.

[0020] Optionally, determining the refrigerant quantity adjustment strategy according to the target adjustment coefficient includes:

[0021] A refrigerant quantity adjustment strategy is determined according to the relationship between the target adjustment coefficient and the adjustment threshold.

[0022] Optionally, determining the refrigerant quantity adjustment strategy according to the relationship between the target adjustment coefficient and the adjustment threshold includes:

[0023] If the target adjustment coefficient is greater than the adjustment threshold, determining that the refrigerant quantity adjustment strategy is to increase the refrigerant quantity;

[0024] If the target adjustment coefficient is less than the adjustment threshold, the refrigerant quantity adjustment strategy is determined to reduce the refrigerant quantity.

[0025] Optionally, determining the refrigerant quantity adjustment strategy includes:

[0026] If the refrigerant quantity adjustment strategy is to increase the refrigerant quantity, the refrigerant regulating device is controlled to open the outlet pressure valve;

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

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

[0029] A first control module, configured to obtain target parameter data related to the amount of refrigerant, and calculate an evaporator load factor and a condenser load factor according to the target parameter data;

[0030] a second control module, 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 according to the evaporator target load factor and the condenser target load factor;

[0031] The adjustment module is used to determine a refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient.

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

[0033] Wherein, the processor is used to call and execute the program stored in the memory;

[0034] The memory is used to store the program, and the program is at least used to execute any one of the methods described above.

[0035] In a fourth aspect, the present application provides a refrigerant output control system, comprising: a refrigerant adjustment device and the electronic device described above;

[0036] The refrigerant regulating device comprises 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;

[0037] The electronic device is used 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 output control device; the refrigerant output control device is configured to be able to execute any of the methods described above.

[0039] The refrigerant output control method, device, system, electronic device and air conditioning equipment of the present invention obtains target parameter data related to the refrigerant quantity in real time, thereby calculating the evaporator load factor and the condenser load factor in real time, and obtains the first adjustment coefficient of the evaporator load factor and the second adjustment coefficient of the condenser load factor in combination with the preset target load coefficient, and combines the two adjustment coefficients to determine the refrigerant quantity adjustment strategy. By adopting this technical solution, the adjustment strategy can be updated in real time according to the target parameters to achieve dynamic regulation of the refrigerant quantity, solve the problem caused by the fixed refrigerant quantity in the prior art, and improve the energy efficiency and comfort of the air conditioning system. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0041] Figure 1 A schematic flow chart of a method for controlling the output of a refrigerant provided in one embodiment of the present invention;

[0042] Figure 2 A schematic diagram of the operation of a one-way valve provided in one embodiment of the present invention;

[0043] Figure 3 A schematic diagram of the structure of a refrigerant output control device provided by an embodiment of the present invention;

[0044] Figure 4 A schematic structural diagram of a refrigerant output control system provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0045] To make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

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

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

[0048] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code that includes one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present invention includes alternative implementations in which functions may not be performed in the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present invention belong.

[0049] Traditional air-conditioning systems usually use a fixed refrigerant amount setting method. During actual operation, the workload of the air conditioner will be affected by many factors, such as changes in ambient temperature, changes in the number of people indoors, different usage times, and differences in the functions of different areas in the building. However, since the refrigerant amount cannot be adjusted accordingly according to these real-time changing load conditions, unreasonable energy utilization occurs under many working conditions.

[0050] The energy-saving air-conditioning system of the present invention effectively solves this problem through dynamic refrigerant quantity control technology. With the help of a variety of high-precision sensors (refrigerant flow sensor, pressure sensor, temperature sensor) installed in key positions, it can monitor the operating parameters of the air-conditioning system in real time, such as refrigerant flow, evaporator and condenser inlet and outlet pressures, ambient temperature, evaporator and condenser surface temperature, etc. The intelligent controller accurately calculates and dynamically adjusts the refrigerant quantity based on these real-time data and combines it with the preset control algorithm to match it with the actual workload in actual application scenarios.

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

[0052] Figure 1 A schematic diagram of a flow chart of a refrigerant output control method provided by an embodiment of the present invention, see Figure 1 The refrigerant output control method provided by the embodiment of the present invention may include the following steps:

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

[0054] S102, determining an evaporator target load factor and a condenser target load factor, and calculating a first adjustment factor of the evaporator load factor and a second adjustment factor of the condenser load factor according to the evaporator target load factor and the condenser target load factor;

[0055] S103: Determine a refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient.

[0056] In this embodiment, the target parameter data may 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 may be obtained by arranging corresponding sensors.

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

[0058] You can choose a thermal refrigerant flow sensor, such as Honeywell's thermal flow sensor series; Reasons for selection: High-precision measurement: The thermal refrigerant flow sensor uses advanced thermal principles to measure flow, with high measurement accuracy, usually up to ±0.5% measurement accuracy. By accurately measuring the flow rate of the refrigerant and the cross-sectional area of ​​the pipe, the flow formula (flow rate = flow rate × cross-sectional area) can be used to accurately calculate the real-time flow of the refrigerant, providing accurate data support for the control of the air-conditioning system, which is crucial for achieving accurate refrigerant quantity adjustment. Non-contact measurement: Its measurement method is non-contact, that is, it does not require direct contact with the refrigerant for measurement. This avoids corrosion, blockage and other problems that may be caused by contact with the refrigerant, and prolongs the life of the air conditioner. It not only extends the service life of the sensor, but also reduces the risk of system downtime caused by sensor failure and improves the reliability of the system. It can adapt to a variety of refrigerants: it can adapt to a variety of different types of refrigerants, whether it is the common Freon refrigerant or the new environmentally friendly refrigerant, etc., the thermal refrigerant flow sensor can work normally and has a wide range of applicability. This makes it unnecessary to replace the sensor when the air-conditioning system replaces or upgrades the refrigerant, reducing the system maintenance cost and upgrade difficulty. Real-time monitoring: it can monitor the refrigerant flow in real time and transmit the measurement data to the intelligent controller in real time. Through this real-time monitoring function, the air-conditioning system can promptly understand the changes in the refrigerant volume, make corresponding control adjustments based on the real-time data, and ensure the stable operation and energy-saving effect of the air-conditioning system.

[0059] Selection and reasons for pressure sensors: Selection: Piezoresistive pressure sensors can be selected, such as Bosch's piezoresistive pressure sensor series products; Selection reasons: High-precision pressure monitoring: Piezoresistive pressure sensors use the piezoresistive effect of semiconductor materials to measure pressure, with high measurement accuracy, usually up to ±0.1% measurement accuracy. They can accurately reflect the pressure changes in key parts of the system, such as the pressure changes at the inlet and outlet of the evaporator and the inlet and outlet of the condenser, providing accurate data support for the control of the air-conditioning system, which is crucial for achieving accurate refrigerant volume adjustment and monitoring of the system operation status. Good stability: Its structure is relatively simple, and the internal semiconductor materials and circuits have been rigorously tested and optimized, showing good stability in the long-term use process. It can operate under different environmental conditions, such as different temperatures and humidity. Degrees, etc., maintain a stable pressure measurement function, and there will be no obvious pressure measurement deviation or malfunction due to changes in environmental factors, ensuring the stable operation of the air-conditioning system. Adapt to a variety of environments: It can adapt to a variety of different environmental conditions. Whether it is in a high temperature, low temperature, high humidity or low humidity environment, the piezoresistive pressure sensor can work normally. At the same time, it can also adapt to different types of air-conditioning systems, such as household air-conditioning, commercial air-conditioning, etc. It has a wide range of applicability and provides a guarantee for the diversified application of air-conditioning systems. Real-time monitoring and feedback: It can monitor the pressure conditions of key parts of the system in real time, and transmit the measured data to the intelligent controller in real time. Through this real-time monitoring and feedback function, the air-conditioning system can promptly understand the changes in pressure, make corresponding control adjustments based on real-time data, and ensure the stable operation and energy-saving effect of the air-conditioning system.

[0060] Selection of temperature sensor and reasons: Selection: You can choose thermocouple or thermal resistor temperature sensor, such as Omega's related thermocouple and thermal resistor temperature sensor products; Selection reasons: High-precision temperature measurement: Thermocouple temperature sensors are based on the thermoelectric effect, and thermal resistor temperature sensors are based on the property that the resistance of metal materials changes with temperature for temperature measurement. They both have high measurement accuracy, usually up to ±0.2°C. The measurement accuracy can accurately reflect the temperature conditions of key parts in the system, such as ambient temperature, evaporator surface temperature, condenser surface temperature and other parts. The temperature changes provide accurate data support for the control of the air-conditioning system, which is crucial for achieving accurate refrigerant adjustment and monitoring of the system operation status. High reliability: The manufacturing process of thermocouple and thermal resistor temperature sensors is relatively mature, and their structure and performance show good stability in long-term use. Under different environmental conditions, such as different time, temperature, humidity, etc., it maintains a stable temperature measurement function, and there will be no obvious temperature measurement deviation or malfunction due to changes in environmental factors, ensuring the stable operation of the air-conditioning system. Adapt to a variety of environments: It can adapt to a variety of different environmental conditions. Whether it is in high temperature, low temperature, high humidity or low humidity environment, thermocouples and thermal resistance temperature sensors can work normally. At the same time, it can also adapt to different types of air-conditioning systems, such as household air-conditioning, commercial air-conditioning, etc. It has a wide range of applicability and provides guarantees for the diversified applications of air-conditioning systems. Real-time monitoring and feedback: It can monitor the temperature of key parts in the system in real time, and transmit the measured data to the intelligent controller in real time. Through this real-time monitoring and tapping function, the air-conditioning system can timely understand the temperature changes, and make corresponding control adjustments based on real-time data to ensure the stable operation and energy-saving effect of the air-conditioning system.

[0061] Selection and reasons for intelligent controller: Selection: Texas Instruments' TMS320F28335 DSP chip is selected as the intelligent controller chip for energy-saving air-conditioning systems. Reasons for selection: Powerful computing power: In energy-saving air-conditioning systems, a large amount of data from multiple sensors (such as refrigerant flow sensors, pressure sensors, temperature sensors, etc.) needs to be processed in real time, including refrigerant flow values, evaporator and condenser inlet and outlet pressure values, ambient temperature values, evaporator and condenser surface temperature values, etc. The TMS320F28335 DSP chip has powerful digital signal processing and computing capabilities, and can quickly perform complex calculations and analyses on these massive data. For example, the load coefficients of the evaporator and condenser are calculated based on the principles of heat transfer, and the refrigerant quantity adjustment coefficient is further calculated based on different air-conditioning working modes (cooling or heating) and the set target load coefficient range. Operations such as these all require the chip to have efficient computing performance. The chip can complete these complex computing tasks in a short time, thereby accurately determining the appropriate refrigerant quantity adjustment strategy, and meeting the stringent requirements of energy-saving air-conditioning systems for real-time data processing and control decisions.

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

[0063] It is understandable that the technical solution recorded in this embodiment obtains the target parameter data related to the refrigerant quantity in real time, thereby calculating the evaporator load factor and the condenser load factor in real time, and obtains the first adjustment coefficient of the evaporator load factor and the second adjustment coefficient of the condenser load factor in combination with the preset target load coefficient, and combines the two adjustment coefficients to determine the refrigerant quantity adjustment strategy. By adopting this technical solution, the adjustment strategy can be updated in real time according to the target parameters to achieve dynamic control of the refrigerant quantity, solve the problem caused by the fixed refrigerant quantity in the prior art, and improve the energy efficiency and comfort of the air-conditioning system.

[0064] In some embodiments, the obtaining of target parameter data related to the amount of refrigerant includes:

[0065] Obtain parameter data related to the amount of refrigerant through the detection component;

[0066] The parameter data is denoised according to a sliding 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 obtained from the refrigerant flow sensor. This data reflects the real-time flow of the refrigerant in the system; the evaporator inlet pressure is obtained from the evaporator inlet and outlet pressure sensors. and outlet pressure And obtain the condenser inlet pressure from the condenser inlet and outlet pressure sensors and outlet pressure (outlet low pressure) These pressure data can help analyze the working status of the evaporator and condenser; at the same time, the ambient temperature is obtained from the ambient temperature sensor. Get the evaporator surface temperature T from the evaporator surface temperature sensor enap , obtain the condenser surface temperature from the condenser surface temperature sensor These temperature data provide important basis for the control of the system under different working conditions.

[0068] The data are preprocessed using the sliding average filter method to remove noise interference. For example, if the window size is set to n = 5, the filtered refrigerant flow value Q at the current moment is filtered .

[0069] The calculation formula is:

[0070]

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

[0072] Similarly, similar filtering was performed on the pressure data and temperature data 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 is more stable and accurate, laying a good foundation for subsequent precise control operations.

[0073] In this application, the calculation of the evaporator load factor based on the filtered data and the calculation of the condenser load factor are described as follows:

[0074] Evaporator load factor: K evap :

[0075]

[0076] Among them, Q filterd (t) is the refrigerant flow value at time t after filtering, which reflects the actual flow of refrigerant into the evaporator at the current moment;

[0077] and They are the inlet pressure and outlet pressure of the evaporator at time t after filtering. 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 It is the heat exchange area of ​​the evaporator, which is an inherent property parameter of the evaporator. It represents the effective surface area of ​​the evaporator used for heat exchange with the outside world (usually indoor air). Evaporators of different models and specifications have different heat exchange areas, which are determined during the design and manufacturing stage of the evaporator.

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

[0080]

[0081] The above formula comprehensively considers factors such as refrigerant flow rate, evaporator inlet and outlet pressure difference, and the heat exchange area of ​​the evaporator itself to accurately quantify the load of the evaporator at the current moment, providing an important reference for subsequent judgment on whether to adjust the refrigerant amount and the adjustment range;

[0082] and They are the low pressure at the outlet and the inlet pressure of the condenser at the time after filtering. Their difference 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 It is the heat exchange area of ​​the condenser and is also an inherent property parameter of the condenser. It is used to indicate the effective surface area of ​​the condenser for heat exchange with the outside world (usually outdoor air). Condensers of different models and specifications have different heat exchange areas, which are determined during the design and manufacturing stage of the condenser.

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

[0085] It can be understood that by adopting the technical solution provided in this embodiment, it is possible to practice data denoising and improve data accuracy.

[0086] In some embodiments, determining the evaporator target load factor and the condenser target load factor includes:

[0087] The air-conditioning operation mode information is determined, and according to the air-conditioning operation mode information, the evaporator target load factor and the 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.

[0088] For example, the air-conditioning operation mode information set by the user may be obtained, and the air-conditioning operation mode information may be a cooling mode or a heating mode.

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

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

[0091] It can be understood that, by adopting the technical solution provided in the embodiment of the present invention, the target load factor of the evaporator and the target load factor of the condenser can be quickly determined.

[0092] In some embodiments, the calculating the first adjustment coefficient of the evaporator load factor and the second adjustment coefficient of the condenser load factor according to the evaporator target load factor and the condenser target load factor includes:

[0093] using the ratio of the evaporator load factor to the evaporator target load factor as a first adjustment factor of the evaporator load factor; and,

[0094] 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.

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

[0096]

[0097] in:

[0098] K evap is the actual load factor of the evaporator calculated previously, i.e., the evaporator load factor;

[0099] It is the target load factor of the evaporator set according to the current air conditioning working mode.

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

[0101]

[0102] Among them, K condis the actual load factor of the condenser calculated previously, i.e., the condenser load factor;

[0103] It is the target load factor of the condenser set according to the current air conditioning 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, determining the refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient includes:

[0106] 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.

[0107] In some embodiments, determining the refrigerant quantity adjustment strategy according to the target adjustment coefficient includes:

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

[0109] For example, in order to more comprehensively and accurately determine the adjustment strategy for the refrigerant quantity of the air conditioning system, it is necessary to comprehensively consider the refrigerant quantity adjustment coefficients of the evaporator and the oven, so as to determine the final refrigerant quantity adjustment coefficient and generate corresponding adjustment instructions accordingly. Comprehensively determine the target adjustment coefficient C total :

[0110] The weighted average method is used to comprehensively consider the conditions of the evaporator and condenser. Assume that 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, w2=0.4). The calculation formula of the target adjustment coefficient is:

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

[0112] It is understandable that the weighted average method can more comprehensively consider the actual conditions of the evaporator and condenser, making the final refrigerant quantity adjustment coefficient more reasonable and accurate, and avoiding the one-sided problem that may be caused by adjusting the refrigerant quantity based solely on the situation of a certain component.

[0113] In some embodiments, determining the refrigerant quantity adjustment strategy according to the relationship between the target adjustment coefficient and the adjustment threshold includes:

[0114] If the target adjustment coefficient is greater than the adjustment threshold, determining that the refrigerant quantity adjustment strategy is to increase the refrigerant quantity;

[0115] If the target adjustment coefficient is less than the adjustment threshold, the refrigerant quantity adjustment strategy is determined to reduce the refrigerant quantity.

[0116] For example, according to C total The value of generates a refrigerant quantity adjustment instruction, and the adjustment threshold can be 1:

[0117] If C total >1, indicating that the current amount of refrigerant is insufficient and needs to be increased. The actuator can be controlled to increase the opening, or the actuator can be controlled to increase the amount of refrigerant by other means;

[0118] If C total <1, indicating that the current amount of refrigerant is too much and needs to be reduced. The actuator is controlled to reduce the opening, or the actuator can be controlled to reduce the amount of refrigerant by other means;

[0119] If C total =1, the current refrigerant quantity and opening degree are maintained unchanged, and the actuator can also be controlled to maintain the refrigerant quantity unchanged through other means.

[0120] It can be understood that in this way, refrigerant quantity adjustment instructions can be accurately issued according to the actual operation of the system to ensure that the refrigerant quantity of the air-conditioning system is always maintained at an appropriate level, so as to achieve the goals of efficient energy saving and ensuring the comfort of the indoor environment.

[0121] In some embodiments, determining the refrigerant quantity adjustment strategy includes:

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

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

[0124] Specifically, the refrigerant regulating device may 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, and prevents internal substances from flowing back out, that is, it can only enter the refrigerant storage system from the air-conditioning 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 be discharged from the storage container to the outside, and prevents external substances from flowing back into the container, that is, it can only enter the air-conditioning operating system from the refrigerant 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] See also Figure 2 , Figure 2 A schematic diagram of a one-way valve according to an embodiment of the present invention is provided. Figure 2 , realizing the function of a one-way valve.

[0127] When the amount of refrigerant needs to be increased, 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 check valve. When the amount of refrigerant needs to be reduced, 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 check valve.

[0128] The refrigerant storage device contains a piston. By changing the position of the piston, the internal volume of the refrigerant storage device can be changed, and the pressure can be further changed to achieve pressure control. In the specific calculation process, the Boyle-Maliott law can be referred to. The Boyle-Maliott law can be expressed as:

[0129] When the temperature and amount of substance remain constant, the pressure of a certain amount of ideal gas is inversely proportional to its volume.

[0130] The mathematical expression is:

[0131] P1*V1=P2*V2

[0132] in:

[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; conversely, when the volume of the gas increases, the pressure decreases.

[0136] Volume change: When the pressure of a gas increases, its volume decreases; conversely, when the pressure of a gas decreases, its volume increases.

[0137] It can be understood that the embodiment provided by the present invention obtains the target parameter data related to the refrigerant quantity in real time, thereby calculating the evaporator load factor and the condenser load factor in real time, and obtains the first adjustment coefficient of the evaporator load factor and the second adjustment coefficient of the condenser load factor in combination with the preset target load coefficient, and combines the two adjustment coefficients to determine the refrigerant quantity adjustment strategy. By adopting this technical solution, the adjustment strategy can be updated in real time according to the target parameters to achieve dynamic control of the refrigerant quantity, solve the problem caused by the fixed refrigerant quantity in the prior art, and improve the energy efficiency and comfort of the air-conditioning system.

[0138] Based on a general inventive concept, the present invention also provides a refrigerant output control device for implementing the above method embodiment. Figure 3 A schematic diagram of a refrigerant output control device according to an embodiment of the present invention is shown in FIG. Figure 3 , the device comprises:

[0139] The first control module 100 is used to obtain target parameter data related to the amount of refrigerant, and calculate the evaporator load factor and the condenser load factor according to the target parameter data;

[0140] The second control module 110 is used 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 according to the evaporator target load factor and the condenser target load factor;

[0141] The adjustment module 120 is configured to determine a refrigerant quantity adjustment strategy based on the first adjustment coefficient and the second adjustment coefficient.

[0142] Optionally, the first control module 100 is specifically configured to obtain parameter data related to the amount of refrigerant through a detection component; and denoise the parameter data according to a sliding average filtering method to obtain the target parameter data.

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

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

[0145] 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.

[0146] Optionally, the adjustment module 120 is specifically configured to perform weighted setting on the first adjustment coefficient and the second adjustment coefficient to obtain a target adjustment coefficient, and determine a refrigerant quantity adjustment strategy according to the target adjustment coefficient.

[0147] Optionally, the adjustment module 120 is specifically configured to determine a refrigerant quantity adjustment strategy according to a relationship between the target adjustment coefficient and the adjustment threshold.

[0148] Optionally, the adjustment module 120 is specifically configured to determine that the refrigerant quantity adjustment strategy is to increase the refrigerant quantity if the target adjustment coefficient is greater than the adjustment threshold; and to determine that the refrigerant quantity adjustment strategy is to reduce the refrigerant quantity if the target adjustment coefficient is less than the adjustment threshold.

[0149] Regarding the device in the above embodiment, the specific manner in which each module performs operations has been described in detail in the embodiment of the method, and will not be elaborated here.

[0150] Corresponding to the above-mentioned sterilization function control method, the present application embodiment also discloses an electronic device, see Figure 4 As shown, the electronic device includes:

[0151] Memory 200 and processor 210;

[0152] The memory 200 is connected to the processor 210 and is used to store programs;

[0153] The processor 210 is used to implement the refrigerant output control method disclosed in any of the above embodiments by running the program stored in the memory 200.

[0154] Specifically, the electronic device may further include: 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 to each other via a bus.

[0156] A bus may include a pathway that transfers information between components of a computer system.

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

[0158] The processor 210 may include a main processor, and may also include a baseband chip, a modem, and the like.

[0159] The memory 200 stores a program for executing the technical solution of the present application, and may also store an operating system and other key services. Specifically, the program may include a program code, and the program code includes computer operation instructions. More specifically, the memory 200 may 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 storage, a flash, and the like.

[0160] The input device 230 may include a device for receiving 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.

[0161] Output device 240 may include devices that allow information to be output to a user, such as a display screen, printer, speaker, etc.

[0162] The communication interface 220 may include any transceiver or the like to communicate with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc.

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

[0164] Furthermore, an embodiment of the present application provides an air-conditioning device, which includes a refrigerant output control device, and the refrigerant output control device is configured to implement the various steps of the refrigerant output control method provided in the above embodiment of the present application.

[0165] The air-conditioning equipment provided in this embodiment belongs to the same application concept as the refrigerant output control method provided in the above embodiments of the present application, can execute the refrigerant output control method provided in any of the above embodiments of the present application, and has functional modules and beneficial effects corresponding to executing the above refrigerant output control method. For technical details not fully described in this embodiment, please refer to the specific processing content of the refrigerant output control method provided in the above embodiments of the present application, which will not be repeated here.

[0166] Figure 4 A schematic diagram of a refrigerant output control system according to an embodiment of the present invention is shown in FIG. Figure 4 , the refrigerant output control system provided by the embodiment of the present invention comprises: a refrigerant regulating device and the electronic device described above;

[0167] The refrigerant regulating device comprises 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;

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

[0169] A person skilled in the art may understand that all or part of the steps in the method for implementing the above-mentioned embodiment may be completed by instructing related hardware through a program, and the program may be stored in a computer-readable storage medium, which, when executed, includes one or a combination of the steps of the method embodiment.

[0170] In addition, each functional unit in each embodiment of the present invention may be integrated into a processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above-mentioned integrated module may be implemented in the form of hardware or in the form of a software functional module. If the integrated module is implemented in the form of a software functional module and sold or used as an independent product, it may 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 this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0173] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A method for controlling the output of a refrigerant, characterized in that: The method comprises: Acquiring target parameter data related to the amount of refrigerant, and calculating an evaporator load factor and a condenser load factor according to the target parameter data; Determining an evaporator target load factor and a condenser target load factor, and calculating a first adjustment factor of the evaporator load factor and a second adjustment factor of the condenser load factor according to the evaporator target 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 amount of refrigerant includes: Obtain parameter data related to the amount of refrigerant 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 step of determining the target load factor of the evaporator and the target load factor of the condenser comprises: The air-conditioning operation mode information is determined, and according to the air-conditioning operation mode information, the evaporator target load factor and the 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, characterized in that: The calculating the first adjustment coefficient of the evaporator load factor and the second adjustment coefficient of the condenser load factor according to the evaporator target load factor and the condenser target load factor includes: using the ratio of the evaporator load factor to the evaporator target load factor as a first adjustment factor of the evaporator load factor; and, 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, characterized in that 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 The step of determining the refrigerant quantity adjustment strategy according to the target adjustment coefficient includes: A refrigerant quantity adjustment strategy is determined according to the relationship between the target adjustment coefficient and the adjustment threshold.

7. The method according to claim 6, characterized in that Determining 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 reduce the refrigerant quantity.

8. The method according to any one of claims 1 to 7, characterized in that: The step of determining the refrigerant quantity adjustment strategy includes: If the refrigerant quantity adjustment strategy is to increase the refrigerant quantity, the refrigerant regulating device is controlled 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: A first control module, configured to obtain target parameter data related to the amount of refrigerant, and calculate an evaporator load factor and a condenser load factor according to the target parameter data; a second control module, 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 according to the evaporator target load factor and the condenser target load factor; The adjustment module is used 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 invention comprises a processor and a memory, wherein the processor is connected to the memory: Wherein, the processor is used 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 an electronic device as claimed in claim 10; The refrigerant regulating device comprises 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; The electronic device is used to control the opening and closing of the outlet pressure valve and the inlet pressure valve according to any one of the methods described in 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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