Emissed carbon source emission monitoring method and system and medium

Abstract

The invention provides an escaping carbon source emission monitoring method and system and a medium, and belongs to the technical field of carbon emission monitoring. The method comprises the steps that a pressure sensor is installed on the side, close to an indoor unit, in a refrigerant pipe connecting the indoor unit and an outdoor unit of refrigeration equipment, and a temperature sensor is installed in the refrigerant pipe of the indoor unit; when the refrigeration equipment is in a stable operation working condition and the external environment condition is constant, temperature regulation and control are started, the temperature of a refrigerant in a refrigerant pipe of an indoor unit is regulated and controlled and stabilized at a preset temperature, real-time pressure data collected by a pressure sensor are obtained, smooth filtering processing is carried out, and an average pressure value is obtained; and a pressure and medium quantity relation model is established based on the ideal gas state equation, the refrigerant dissipation amount is calculated by combining the initial pressure value and the initial refrigerant mass in the refrigerant pipe obtained during initial filling and the calculated average pressure value, and then the refrigerant dissipation amount is pushed to an enterprise carbon management platform. According to the invention, the sensor layout and algorithm are optimized, refrigerant dissipation is accurately monitored, and carbon emission accounting is realized.

Description

Technical Field

[0001] This application belongs to the field of carbon emission monitoring technology, specifically relating to a method, system and medium for monitoring fugitive carbon source emissions. Background Technology

[0002] With the intensification of the global greenhouse effect, the monitoring and management of carbon emissions are becoming increasingly important. Refrigeration equipment, widely used in daily life and industrial production, has become a significant source of greenhouse gas emissions due to the release of refrigerants. The fluorinated gases in refrigerants have extremely high global warming potential (GWP), and once released into the atmosphere, they will cause serious damage to the climate and threaten the ecological environment.

[0003] Currently, monitoring refrigerant emissions from refrigerant-equipped equipment primarily employs two methods: First, recording refrigerant fill values ​​to calculate refrigerant consumption. While simple, this method concentrates emissions across the years of equipment fill, hindering long-term emission reduction planning and trend analysis. Second, calculations are based on the equipment's refrigerant capacity and emission coefficient. While this method disperses emissions statistics, it deviates significantly from actual operating conditions, especially for equipment operating stably for extended periods without refrigerant additions; the calculated results often exceed actual emissions. Furthermore, both methods suffer from low accuracy and poor timeliness, failing to meet the demands of precise carbon accounting.

[0004] Therefore, there is an urgent need for a high-precision, real-time, and cost-effective monitoring method to accurately monitor the refrigerant emissions from refrigeration equipment and provide reliable technical support for carbon emission accounting. Summary of the Invention

[0005] In a first aspect, embodiments of this application provide a method for monitoring fugitive carbon source emissions, comprising the following steps: S1. Install a pressure sensor in the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, near the indoor unit side, and install a temperature sensor in the second refrigerant pipe of the indoor unit; S2. When the refrigeration unit is in stable operation and the external environmental conditions are constant, start the temperature control to regulate and stabilize the refrigerant temperature in the second refrigerant pipe of the indoor unit at the preset stable temperature threshold. S3. When the refrigerant temperature in the second refrigerant pipe of the indoor unit stabilizes at the preset stable temperature threshold, the real-time pressure data in the first refrigerant pipe collected by the pressure sensor is acquired, and the real-time pressure data is smoothed and filtered to obtain the average pressure value. S4. Based on the ideal gas law, establish a pressure-refrigerant relationship model, and combine the initial pressure and initial refrigerant mass obtained during initial filling of the first refrigerant pipe with the calculated average pressure to calculate the refrigerant dissipation. S5. Push refrigerant emission information to the enterprise carbon management platform via wireless communication module.

[0006] Furthermore, the specific steps of step S1 are as follows: S11. Determine the installation location of the pressure sensor as the connecting pipe between the indoor and outdoor units of the refrigeration equipment, which serves as the first refrigerant pipe, and locate it at a distance from the indoor unit that is less than the maximum distance threshold. S12. Determine the installation location of the temperature sensor as the refrigerant return line of the indoor unit, which serves as the second refrigerant line, or the evaporator inlet line. S13. Connect the pressure sensor and temperature sensor to the data processor.

[0007] Furthermore, the specific steps of step S2 are as follows: S21. Determine whether the refrigeration equipment is in a stable operating condition, wherein the stable operating condition refers to the compressor running continuously for more than a set time and the set temperature remaining unchanged; S22. Determine whether the external environmental conditions are constant, wherein constant means that the ambient temperature fluctuation is within a set temperature range and the atmospheric pressure change is within a set pressure range; S23. When the refrigeration equipment is in stable operating condition and the external environmental conditions are constant, start temperature control and adjust the refrigerant temperature to the preset stable temperature threshold by controlling the refrigeration or heating function of the refrigeration equipment.

[0008] Furthermore, the specific steps for initiating temperature control in step S23 are as follows: The data processor reads the current refrigerant temperature collected by the temperature sensor; If the current refrigerant temperature is lower than the preset stable temperature threshold, the heating function of the refrigeration equipment will be activated. If the current refrigerant temperature is higher than the preset stable temperature threshold, the refrigeration function of the refrigeration equipment will be activated. The refrigerant temperature is continuously monitored until the deviation between the refrigerant temperature and the preset stable temperature threshold is within the preset temperature deviation range and is maintained for the minimum duration, at which point the temperature is determined to be stable.

[0009] Furthermore, the specific steps of step S3 are as follows: S31. After the refrigerant temperature reaches a stable state, the data processor continuously collects N pressure data points through the pressure sensor at a set sampling interval to form the original pressure data sequence. S32. Perform moving average filtering on the original pressure data sequence:

[0010] in, The pressure value is obtained through filtering calculation, where N is the total number of sampling points. This represents the original pressure value of the i-th sampled pressure data point; S33. Use the pressure value obtained after filtering as the average pressure value at the current moment.

[0011] Furthermore, the specific steps of step S4 are as follows: S41. Obtain the fixed volume V of the refrigerant pipeline and the molar mass M of the refrigerant; S42. Solve the ideal gas law simultaneously. With the formula for the amount of substance To obtain the refrigerant quality With pressure The pressure-medium relationship model is characterized as follows:

[0012] in, For pressure, To fix the volume of the refrigerant piping, The molar mass of the refrigerant. The gas constant is The preset stable temperature threshold is expressed in Kelvin. S43. Calculate the initial refrigerant mass based on the pressure-refrigerant quantity relationship model. Refrigerant quality at the current moment :

[0013]

[0014] in, This is the initial pressure value. The calculated average pressure value; S44. Calculate the refrigerant mass at the current moment using the following formula. and initial refrigerant quality The difference, as a refrigerant dissipation amount : .

[0015] Furthermore, the fixed volume V of the refrigerant pipeline mentioned in step S41 is obtained in the following manner: Obtain the design value of the piping volume directly from the product design drawings of the refrigeration equipment; or, The total mass of refrigerant obtained by weighing during the initial charging of the refrigeration equipment. Pressure after filling is completed and stabilized and temperature The following inverse calculations were performed using a pressure-medium relationship model:

[0016] in, The gas constant is... Let V be the molar mass of the refrigerant, and V be the fixed volume of the refrigerant piping.

[0017] Furthermore, the specific steps of step S5 are as follows: S51. The data processor calculates the refrigerant dissipation amount. Pack the data packet with the refrigeration equipment identifier and timestamp; S52. The data processor sends data packets to the enterprise carbon management platform via a wireless communication module and using 5G or NB-IoT communication protocols; S53. The enterprise carbon management platform shall perform the following operations: Receive and parse data packets to obtain the refrigerant dissipation amount. and device identifier; The global warming potential of the refrigerant used in the refrigeration equipment is obtained by querying the database based on the equipment identifier. ; Based on refrigerant dissipation and global warming potential The equivalent of emitted carbon dioxide is calculated using the following formula:

[0018] in, This is the equivalent of carbon dioxide emitted in the current episode. It is the amount of refrigerant dissipated. It is the global warming potential; The calculated carbon dioxide equivalent of the current emission. This is accumulated in the carbon account corresponding to the refrigeration equipment identifier.

[0019] Secondly, embodiments of this application also provide an fugitive carbon source emission monitoring system for implementing the method described in the first aspect, comprising: The sensor module includes: A pressure sensor is installed on the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, close to the indoor unit side, to collect pressure signals in the pipe. A temperature sensor is installed on the second refrigerant pipe of the indoor unit of the refrigeration equipment to collect the refrigerant temperature signal in the pipe; The data acquisition and processing module, connected to the sensor module, is used for: Receive and process the temperature signal and the pressure signal; After determining that the refrigeration equipment is in a stable operating condition and the external environmental conditions are constant, temperature control is initiated to regulate and stabilize the refrigerant temperature at the preset stable temperature threshold. Once the refrigerant temperature stabilizes, the real-time pressure data collected by the pressure sensor is acquired and smoothed and filtered to obtain the average pressure value. Based on the pressure-medium quantity relationship model established by the ideal gas law, combined with the initial filling parameters and average pressure value, the refrigerant dissipation amount is calculated. The communication module, connected to the data acquisition and processing module, is used to wirelessly transmit data packets containing refrigerant emissions, device identifiers, and timestamps to the enterprise carbon management platform. The power supply module is used to power the sensor module, data acquisition and processing module, and communication module.

[0020] Thirdly, embodiments of this application also provide a storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the fugitive carbon source emission monitoring method as described in the first aspect.

[0021] As can be seen from the above technical solutions, this application has the following advantages: The fugitive carbon emission monitoring method, system, and medium provided in this application, through optimizing sensor installation layout, ideal gas model, and upgrading data acquisition and processing algorithms, accurately captures the amount of refrigerant fugitives in the refrigerant pipeline of refrigeration equipment, improves monitoring accuracy and timeliness, and reduces monitoring costs, providing technical support for carbon accounting and assisting enterprises in achieving precise carbon emission management. Attached Figure Description

[0022] To more clearly illustrate the technical solution of this application, the accompanying drawings used in the description will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic flowchart of the fugitive carbon source emission monitoring method of the present invention.

[0024] Figure 2 This is a schematic diagram of the installation of the refrigerant carbon source monitoring system for the refrigeration equipment of the present invention.

[0025] Figure 3 This is a schematic diagram of the fugitive carbon source emission monitoring system of the present invention.

[0026] Among them, 1-indoor unit; 2-outdoor unit; 3-temperature sensor; 4-pressure sensor; 5-first refrigerant pipe. Detailed Implementation

[0027] The various embodiments of this disclosure will be described more fully in the detailed steps of the method for monitoring fugitive carbon source emissions described below. This disclosure may have various embodiments, and adjustments and changes may be made therein. However, it should be understood that there is no intention to limit the various embodiments of this disclosure to the specific embodiments disclosed herein, but rather this disclosure should be understood to cover all adjustments, equivalents, and / or alternatives falling within the spirit and scope of the various embodiments of this disclosure.

[0028] For example, as global warming becomes increasingly severe, the monitoring and management of carbon emissions are becoming more and more critical. Among the many sources of carbon emissions, the issue of refrigerant leakage from refrigeration equipment cannot be ignored. These devices are widely used in daily life and industry, and the fluorinated refrigerants they contain have a significant global warming potential (GWP). Once leaked into the atmosphere, they will cause serious damage to the climate and the ecological environment.

[0029] Currently, the industry primarily relies on two methods to monitor refrigerant emissions. The first method indirectly calculates refrigerant consumption by recording refrigerant fill volume. While simple to operate, it has a significant drawback—it concentrates emissions on the year the equipment was filled, making long-term emission reduction planning and trend analysis difficult to implement effectively. The second method calculates emissions based on the equipment's refrigerant capacity and emission coefficient. While this somewhat disperses emissions statistics, the results deviate significantly from the actual operating conditions of the equipment. Especially for equipment that has been operating stably for a long time without additional refrigerant additions, the calculated emissions are often significantly higher than the actual values. Both of these mainstream methods suffer from insufficient monitoring accuracy and data lag, and can no longer meet the urgent need for precise carbon accounting.

[0030] Against this backdrop, the development of a high-precision, real-time monitoring technology for refrigerant emission monitoring is particularly urgent and necessary for achieving accurate assessment of refrigerant emission from refrigeration equipment and promoting the advancement of carbon emission accounting technology.

[0031] To address the aforementioned issues, this embodiment provides a method for monitoring fugitive carbon emissions. By combining pressure and temperature monitoring with an ideal gas model, the method accurately calculates the amount of refrigerant fugitives, pushes data in real time, and assists enterprises in carbon accounting.

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Please see Figure 1The diagram shows a flowchart of a method for monitoring fugitive carbon source emissions in a specific embodiment. The method includes the following steps: S1. Install a pressure sensor in the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, near the indoor unit side, and install a temperature sensor in the second refrigerant pipe of the indoor unit; It should be noted that installing pressure and temperature sensors at key locations in the refrigeration equipment provides a data foundation for accurately monitoring refrigerant leakage, ensuring the comprehensiveness and accuracy of the monitoring data. S2. When the refrigeration unit is in stable operation and the external environmental conditions are constant, start the temperature control to regulate and stabilize the refrigerant temperature in the second refrigerant pipe of the indoor unit at the preset stable temperature threshold. It should be noted that activating temperature control stabilizes the refrigerant temperature at the preset threshold, reducing the impact of temperature fluctuations on pressure data, providing a stable environment for subsequent emissions calculation, and improving the reliability of monitoring results. S3. When the refrigerant temperature in the second refrigerant pipe of the indoor unit stabilizes at the preset stable temperature threshold, the real-time pressure data in the first refrigerant pipe collected by the pressure sensor is acquired, and the real-time pressure data is smoothed and filtered to obtain the average pressure value. It should be noted that smoothing and filtering the real-time pressure data reduces data fluctuations and noise interference, improves the stability and reliability of the pressure data, and provides data support for accurately calculating the refrigerant dissipation. S4. Based on the ideal gas law, establish a pressure-refrigerant relationship model, and combine the initial pressure and initial refrigerant mass obtained during initial filling of the first refrigerant pipe with the calculated average pressure to calculate the refrigerant dissipation. It should be noted that a pressure-refrigerant relationship model was established based on the ideal gas law, and the refrigerant escape amount was calculated by combining the initial filling parameters and the average pressure value, thus achieving accurate quantification of refrigerant escape amount and providing key data for carbon emission accounting. S5. Push refrigerant emission information to the enterprise carbon management platform via wireless communication module; It should be noted that by pushing refrigerant emission information to the enterprise carbon management platform through a wireless communication module, real-time sharing and efficient utilization of monitoring data are achieved, assisting enterprises in accurate management of carbon emissions and emission reduction targets.

[0034] This embodiment achieves accurate monitoring and real-time data transmission of refrigerant emissions by installing sensors at key locations in the refrigeration equipment and combining temperature control, pressure data processing, and ideal gas law modeling, thereby improving the accuracy and timeliness of carbon emission accounting.

[0035] Furthermore, as a refinement and extension of the specific implementation of the above embodiments, in order to fully illustrate the specific implementation process of this embodiment, another method for monitoring the emission of fugitive carbon sources is provided. Taking a commercial split air conditioner as an example, the specific implementation process of this method is illustrated; the air conditioner uses R410A as the refrigerant, and its molar mass M is 0.072 kg / mol. The method includes the following steps: S1. Install a pressure sensor in the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, near the indoor unit side; install a temperature sensor in the second refrigerant pipe of the indoor unit. The specific steps of step S1 are as follows: S11. Determine the installation location of the pressure sensor as the connecting pipe between the indoor and outdoor units of the refrigeration equipment, which serves as the first refrigerant pipe, and place it at a distance from the indoor unit that is less than the maximum distance threshold (e.g., 0.5m). S12. Determine the installation location of the temperature sensor as the refrigerant return line of the indoor unit, which serves as the second refrigerant line, or the evaporator inlet line. S13. Connect the pressure sensor and temperature sensor to the data processor; like Figure 2 As shown, the sensor is deployed: On the first refrigerant pipe 5 connecting the indoor unit 1 and the outdoor unit 2 of the air conditioner, select a straight pipe section no more than 0.5 meters away from the interface of the indoor unit 1 and install a pressure sensor with an accuracy of ±0.01MPa. A temperature sensor 4 with an accuracy of ±0.1℃ is installed on the evaporator inlet pipe of the indoor unit 1, which serves as the second refrigerant pipe. Connect the two sensors mentioned above to an embedded data processor (e.g., a microcontroller based on an ARM Cortex-M core) via signal lines. S2. When the refrigeration unit is operating stably and the external environmental conditions are constant, activate the temperature control to regulate and stabilize the refrigerant temperature in the second refrigerant pipe of the indoor unit at a preset stable temperature threshold; the specific steps of step S2 are as follows: S21. Determine whether the refrigeration equipment is in a stable operating condition, wherein the stable operating condition refers to the compressor running continuously for more than a set time (e.g., 10 minutes) and the set temperature remains unchanged; S22. Determine whether the external environmental conditions are constant, wherein constant means that the ambient temperature fluctuation is within a set temperature range (e.g., ±1℃) and the atmospheric pressure change is within a set pressure range (e.g., ±50Pa); S23. When the refrigeration equipment is in stable operating condition and the external environmental conditions are constant, activate temperature control to adjust the refrigerant temperature to a preset stable temperature threshold (e.g., 20°C) by controlling the refrigeration or heating function of the refrigeration equipment; the specific steps for activating temperature control in step S23 are as follows: The data processor reads the current refrigerant temperature collected by the temperature sensor; If the current refrigerant temperature is lower than the preset stable temperature threshold, the heating function of the refrigeration equipment will be activated. If the current refrigerant temperature is higher than the preset stable temperature threshold, the refrigeration function of the refrigeration equipment will be activated. Continuously monitor the refrigerant temperature until the deviation between the refrigerant temperature and the preset stable temperature threshold is within the preset temperature deviation range (e.g., ±0.1℃) and remains stable for a minimum duration (e.g., 1 minute), at which point the temperature is considered stable. For example, the monitoring program starts automatically every 24 hours according to a preset cycle; after starting, the data processor first performs the following judgment: Determine stable operating conditions: Check if the air conditioner compressor has been running continuously for more than 10 minutes and the set temperature has not changed; if so, proceed to the next step. Determine if the external environment is constant: Read data through environmental sensors (either built-in or external) to determine if the ambient temperature fluctuation is within ±1℃ and the atmospheric pressure change is within ±50Pa; if the conditions are met, start the temperature control program. The temperature control program is executed by the data processor: The data processor reads the real-time value of the temperature sensor. If the current refrigerant temperature is 18°C, which is lower than the preset stable temperature threshold, it sends a command to the air conditioning control system to start its electric auxiliary heating function to heat the refrigerant. The data processor continuously monitors the refrigerant temperature. When the temperature rises to within the range of 20℃±0.1℃ and remains stable within this range for 1 minute, it determines that the refrigerant temperature has stabilized at 20℃ and then proceeds to the next step. S3. When the refrigerant temperature in the second refrigerant pipe of the indoor unit stabilizes at a preset stable temperature threshold, acquire the real-time pressure data in the first refrigerant pipe collected by the pressure sensor, and perform smoothing and filtering processing on the real-time pressure data to obtain the average pressure value; the specific steps of step S3 are as follows: S31. After the refrigerant temperature reaches a stable state, the data processor continuously collects N (e.g., 60) pressure data points through the pressure sensor at a set sampling interval (e.g., 1s) to form the original pressure data sequence; S32. Perform moving average filtering on the original pressure data sequence:

[0036] in, The pressure value is obtained through filtering calculation, where N is the total number of sampling points. This represents the original pressure value of the i-th sampled pressure data point; S33. Use the pressure value obtained after filtering as the average pressure value at the current moment; For example, after the refrigerant temperature stabilizes, the data processor initiates pressure acquisition: The pressure sensor is driven to continuously collect 60 raw pressure data points at a frequency of once per second, forming a raw pressure data sequence. ; The original data sequence is processed by moving average filtering to suppress random interference; average pressure value The calculation formula is as follows:

[0037] The calculated The effective average pressure value at the current time (i.e., time t). and output it for subsequent calculations; S4. Establish a pressure-refrigerant relationship model based on the ideal gas law, and combine the initial pressure and initial refrigerant mass obtained during initial filling of the first refrigerant pipe, as well as the calculated average pressure, to calculate the refrigerant dissipation. The specific steps of step S4 are as follows: S41. Obtain the fixed volume V of the refrigerant piping and the molar mass M of the refrigerant; the fixed volume V of the refrigerant piping mentioned in step S41 is obtained in the following manner: The design value of the pipe volume can be obtained directly from the product design drawings of the refrigeration equipment; S42. Solve the ideal gas law simultaneously. With the formula for the amount of substance To obtain the refrigerant quality With pressure The pressure-medium relationship model is characterized as follows:

[0038] in, For pressure, To fix the volume of the refrigerant piping, The molar mass of the refrigerant. The gas constant is... The preset stable temperature threshold is expressed in Kelvin. S43. Calculate the initial refrigerant mass based on the pressure-refrigerant quantity relationship model. Refrigerant quality at the current moment :

[0039]

[0040] in, This is the initial pressure value. The calculated average pressure value; S44. Calculate the refrigerant mass at the current moment using the following formula. and initial refrigerant quality The difference, as a refrigerant dissipation amount : ; For example, the data processor calls a preset algorithm model to calculate the dissipation; Obtain the system's inherent parameters: refrigerant molar mass M = 0.072 kg / mol (a known parameter of R410A); gas constant; The fixed volume of the refrigerant piping is V = 0.08 m³. 3 This volume was obtained by consulting the design drawings of this air conditioner model to determine the total design volume of its piping system. The preset stable temperature threshold is T = 20 + 273.15 = 293.15 K; Initial charging parameters: The initial pressure value measured under stable conditions of 20℃ after the air conditioner has been fully charged at the factory. =1.201 MPa, initial refrigerant mass =2.5 kg; these data have been pre-stored in the data processor; Calculate the amount of energy dissipated: Based on the pressure-medium relationship model ; First, calculate the refrigerant mass at time t. :

[0041] Assuming the average pressure value measured in this study =1.187 MPa, substituting into the formula, we get ≈2.468 kg; Then, calculate the refrigerant dissipation. :

[0042] S5. Push the refrigerant emission information to the enterprise carbon management platform via the wireless communication module; the specific steps of step S5 are as follows: S51. The data processor calculates the refrigerant dissipation amount. Pack the data packet with the refrigeration equipment identifier and timestamp; S52. The data processor sends data packets to the enterprise carbon management platform via a wireless communication module and using 5G or NB-IoT communication protocols; S53. The enterprise carbon management platform shall perform the following operations: Receive and parse data packets to obtain the refrigerant dissipation amount. and device identifier; The global warming potential of the refrigerant used in the refrigeration equipment is obtained by querying the database based on the equipment identifier. ; Based on refrigerant dissipation and global warming potential The equivalent of emitted carbon dioxide is calculated using the following formula:

[0043] in, This is the equivalent of carbon dioxide emitted in the current episode. It is the amount of refrigerant dissipated. It is the global warming potential; The calculated carbon dioxide equivalent of the current emission. This amount is accumulated in the carbon account corresponding to the refrigeration equipment identifier. For example, the data processor calculates the dissipation amount The device's unique identifier (such as SN:AC20240815001) and the current timestamp are packaged into a JSON format data packet; The data packet is sent to the enterprise's carbon management platform via the integrated NB-IoT communication module. After the enterprise carbon management platform receives the data: Parse the message to obtain and device identifier; According to the equipment identifier database query, the air conditioner uses R410A refrigerant, which has a global warming potential (GWP) of 2088. Through formula Calculate the carbon dioxide equivalent emitted in this instance:

[0044] The 66.816 kg of carbon dioxide equivalent data was added to the equipment carbon account with the identifier "SN:AC20240815001" to complete this monitoring and accounting.

[0045] In another example of this application, unlike the embodiments described above, the fixed volume V of the refrigerant pipeline in step S41 is obtained in the following manner: The total mass of refrigerant obtained by weighing during the initial charging of the refrigeration equipment. Pressure after filling is completed and stabilized and temperature The following inverse calculations were performed using a pressure-medium relationship model: ; in, The gas constant is... V is the molar mass of the refrigerant, and V is the fixed volume of the refrigerant piping. For example, the fixed volume V of the refrigerant pipeline in step S41 is obtained in the following way: When refrigerant is first added after air conditioner installation, a high-precision scale is used to weigh the refrigerant tank to obtain the total mass of refrigerant to be filled into the pipeline. =2.5kg ； After filling, under constant environmental conditions, wait for the system to stabilize and then measure the refrigerant pressure. =1.201 MPa, temperature =293.15 K; Using the pressure-medium volume relationship model, the pipeline volume V is obtained by inverse calculation:

[0046] Afterward, this V value can be used as a fixed parameter for all subsequent emissions calculations for this device.

[0047] It should be understood that the sequence number of each step in the above embodiments does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.

[0048] like Figure 3 As shown, the following are embodiments of the fugitive carbon source emission monitoring system provided in this disclosure. This system and the fugitive carbon source emission monitoring methods in the above embodiments belong to the same inventive concept. For details not described in detail in the embodiments of the fugitive carbon source emission monitoring system, please refer to the embodiments of the above fugitive carbon source emission monitoring methods.

[0049] The system includes: The sensor module includes: A pressure sensor is installed on the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, close to the indoor unit side, to collect pressure signals in the pipe. A temperature sensor is installed on the second refrigerant pipe of the indoor unit of the refrigeration equipment to collect the refrigerant temperature signal in the pipe; The data acquisition and processing module, connected to the sensor module, is used for: Receive and process the temperature signal and the pressure signal; After determining that the refrigeration equipment is in a stable operating condition and the external environmental conditions are constant, temperature control is initiated to regulate and stabilize the refrigerant temperature at the preset stable temperature threshold. Once the refrigerant temperature stabilizes, the real-time pressure data collected by the pressure sensor is acquired and smoothed and filtered to obtain the average pressure value. Based on the pressure-medium quantity relationship model established by the ideal gas law, combined with the initial filling parameters and average pressure value, the refrigerant dissipation amount is calculated. The communication module, connected to the data acquisition and processing module, is used to wirelessly transmit data packets containing refrigerant emissions, device identifiers, and timestamps to the enterprise carbon management platform. The power supply module is used to power the sensor module, data acquisition and processing module, and communication module.

[0050] This embodiment achieves accurate monitoring of refrigerant emissions and real-time sharing of carbon emission data through the interactive collaboration of sensor modules, data acquisition and processing modules, communication modules, and power supply modules, thus assisting enterprises in carbon accounting.

[0051] The fugitive carbon emission monitoring method provided in this application can be applied to electronic devices. Those skilled in the art will understand that the electronic device structure involved in the embodiments of this invention does not constitute a limitation on the electronic device. An electronic device may include more or fewer components than illustrated, or combine certain components, or have different component arrangements. In the embodiments of this invention, electronic devices include, but are not limited to, laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. Electronic devices may also represent various forms of mobile devices, such as personal digital processors, cellular phones, smartphones, wearable devices, and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the embodiments of this application described and / or claimed herein.

[0052] Electronic devices may include processors, external memory interfaces, internal memory, universal serial bus (USB) interfaces, charging management modules, power management modules, batteries, wireless communication modules, audio modules, speakers, microphones, sensor modules, buttons, cameras, displays, and SIM card interfaces, etc.

[0053] It is understood that the structures illustrated in the embodiments of this application do not constitute a specific limitation on the electronic device. In other embodiments of this application, the electronic device may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0054] A processor may include one or more processing units, such as a central processing unit (CPU), an application processor (AP), a modem processor, a graphics processing unit (GPU), an image signal processor (ISP), a controller, memory, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural network processing unit (NPU). Different processing units may be independent devices or integrated into one or more processors.

[0055] The processor can serve as the nerve center and command center of an electronic device. The controller can generate operation control signals based on the instruction opcode and timing signals to control the fetching and execution of instructions.

[0056] The processor may also include memory for storing instructions and data. In some embodiments, the memory in the processor is a cache memory. This memory can store instructions or data that the processor has just used or that are used repeatedly. If the processor needs to use the instruction or data again, it can retrieve it directly from this memory. This avoids repeated accesses, reduces processor latency, and thus improves system efficiency.

[0057] The aforementioned electronic device implements the carbon emission monitoring method of this application, which involves installing a pressure sensor in the first refrigerant pipe connecting the indoor and outdoor units of a refrigeration equipment, near the indoor unit, and a temperature sensor in the second refrigerant pipe of the indoor unit. When the refrigeration unit is operating stably and the external environmental conditions are constant, temperature control is initiated to regulate and stabilize the refrigerant temperature in the second refrigerant pipe of the indoor unit at a preset stable temperature threshold. When the refrigerant temperature in the second refrigerant pipe of the indoor unit stabilizes at the preset stable temperature threshold, real-time pressure data from the pressure sensor in the first refrigerant pipe is acquired, and the real-time pressure data is smoothed and filtered to obtain an average pressure value. A pressure-refrigerant quantity relationship model is established based on the ideal gas law, and combined with the initial pressure value and initial refrigerant mass obtained during initial filling of the first refrigerant pipe, as well as the calculated average pressure value, the refrigerant emission amount is calculated. The refrigerant emission information is then pushed to the enterprise carbon management platform via a wireless communication module. This achieves the beneficial effects of optimizing sensor layout and data processing algorithms, accurately monitoring refrigerant emission amount using an ideal gas model, and providing real-time data push via wireless transmission to assist enterprises in carbon emission accounting and emission reduction planning.

[0058] The storage medium provided in this application stores a program product capable of implementing a method for monitoring emissions from fugitive carbon sources.

[0059] The method for monitoring carbon emissions from escaping sources includes: installing a pressure sensor near the indoor unit in the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, and installing a temperature sensor in the second refrigerant pipe of the indoor unit; under stable operating conditions and constant external environmental conditions, initiating temperature control to regulate and stabilize the refrigerant temperature in the second refrigerant pipe of the indoor unit at a preset stable temperature threshold; when the refrigerant temperature in the second refrigerant pipe of the indoor unit stabilizes at the preset stable temperature threshold, acquiring real-time pressure data from the pressure sensor in the first refrigerant pipe, and smoothing and filtering the real-time pressure data to obtain an average pressure value; establishing a pressure-refrigerant quantity relationship model based on the ideal gas law, and combining the initial pressure value and initial refrigerant mass obtained during initial filling of the first refrigerant pipe, as well as the calculated average pressure value, to calculate the refrigerant emission amount; and pushing the refrigerant emission amount information to the enterprise carbon management platform via a wireless communication module.

[0060] In some possible implementations, the fugitive carbon source emission monitoring method of this disclosure can be implemented as a program product comprising program code that, when the program product is run on a terminal device, causes the terminal device to perform the steps described in the "Exemplary Methods" section of this specification according to various exemplary embodiments of this disclosure.

[0061] The storage medium disclosed herein may be any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of readable storage media include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination thereof.

[0062] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for monitoring fugitive carbon source emissions, characterized in that, Includes the following steps: S1. Install a pressure sensor in the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, near the indoor unit side, and install a temperature sensor in the second refrigerant pipe of the indoor unit; S2. When the refrigeration unit is in stable operation and the external environmental conditions are constant, start the temperature control to regulate and stabilize the refrigerant temperature in the second refrigerant pipe of the indoor unit at the preset stable temperature threshold. S3. When the refrigerant temperature in the second refrigerant pipe of the indoor unit stabilizes at the preset stable temperature threshold, the real-time pressure data in the first refrigerant pipe collected by the pressure sensor is acquired, and the real-time pressure data is smoothed and filtered to obtain the average pressure value. S4. Based on the ideal gas law, establish a pressure-refrigerant relationship model, and combine the initial pressure and initial refrigerant mass obtained during initial filling of the first refrigerant pipe with the calculated average pressure to calculate the refrigerant dissipation. S5. Push refrigerant emission information to the enterprise carbon management platform via wireless communication module.

2. The method for monitoring fugitive carbon source emissions according to claim 1, characterized in that, The specific steps of step S1 are as follows: S11. Determine the installation location of the pressure sensor as the connecting pipe between the indoor and outdoor units of the refrigeration equipment, which serves as the first refrigerant pipe, and locate it at a distance from the indoor unit that is less than the maximum distance threshold. S12. Determine the installation location of the temperature sensor as the refrigerant return line of the indoor unit, which serves as the second refrigerant line, or the evaporator inlet line. S13. Connect the pressure sensor and temperature sensor to the data processor.

3. The method for monitoring fugitive carbon source emissions according to claim 1, characterized in that, The specific steps of step S2 are as follows: S21. Determine whether the refrigeration equipment is in a stable operating condition, wherein the stable operating condition refers to the compressor running continuously for more than a set time and the set temperature remaining unchanged; S22. Determine whether the external environmental conditions are constant, wherein constant means that the ambient temperature fluctuation is within a set temperature range and the atmospheric pressure change is within a set pressure range; S23. When the refrigeration equipment is in stable operating condition and the external environmental conditions are constant, start temperature control and adjust the refrigerant temperature to the preset stable temperature threshold by controlling the refrigeration or heating function of the refrigeration equipment.

4. The method for monitoring fugitive carbon source emissions according to claim 3, characterized in that, The specific steps for initiating temperature control in step S23 are as follows: The data processor reads the current refrigerant temperature collected by the temperature sensor; If the current refrigerant temperature is lower than the preset stable temperature threshold, the heating function of the refrigeration equipment will be activated. If the current refrigerant temperature is higher than the preset stable temperature threshold, the refrigeration function of the refrigeration equipment will be activated. The refrigerant temperature is continuously monitored until the deviation between the refrigerant temperature and the preset stable temperature threshold is within the preset temperature deviation range and is maintained for the minimum duration, at which point the temperature is determined to be stable.

5. The method for monitoring fugitive carbon source emissions according to claim 3, characterized in that, The specific steps of step S3 are as follows: S31. After the refrigerant temperature reaches a stable state, the data processor continuously collects N pressure data points through the pressure sensor at a set sampling interval to form the original pressure data sequence. S32. Perform moving average filtering on the original pressure data sequence: in, The pressure value is obtained through filtering calculation, where N is the total number of sampling points. This represents the original pressure value of the i-th sampled pressure data point; S33. Use the pressure value obtained after filtering as the average pressure value at the current moment.

6. The method for monitoring fugitive carbon source emissions according to claim 5, characterized in that, The specific steps of step S4 are as follows: S41. Obtain the fixed volume V of the refrigerant pipeline and the molar mass M of the refrigerant; S42. Solve the ideal gas law simultaneously. With the formula for the amount of substance To obtain the refrigerant quality With pressure The pressure-medium relationship model is characterized as follows: in, For pressure, To fix the volume of the refrigerant piping, The molar mass of the refrigerant. The gas constant is... The preset stable temperature threshold is expressed in Kelvin. S43. Calculate the initial refrigerant mass based on the pressure-refrigerant quantity relationship model. Refrigerant quality at the current moment : in, This is the initial pressure value. The calculated average pressure value; S44. Calculate the refrigerant mass at the current moment using the following formula. and initial refrigerant quality The difference, as a refrigerant dissipation amount : 。 7. The method for monitoring fugitive carbon source emissions according to claim 6, characterized in that, The fixed volume V of the refrigerant pipeline mentioned in step S41 is obtained in the following way: Obtain the design value of the piping volume directly from the product design drawings of the refrigeration equipment; or, The total mass of refrigerant obtained by weighing during the initial charging of the refrigeration equipment. Pressure after filling is completed and stabilized and temperature The following inverse calculations were performed using a pressure-medium relationship model: in, The gas constant is Let V be the molar mass of the refrigerant, and V be the fixed volume of the refrigerant piping.

8. The method for monitoring fugitive carbon source emissions according to claim 6, characterized in that, The specific steps of step S5 are as follows: S51. The data processor calculates the refrigerant dissipation amount. Pack the data packet with the refrigeration equipment identifier and timestamp; S52. The data processor sends data packets to the enterprise carbon management platform via a wireless communication module and using 5G or NB-IoT communication protocols; S53. The enterprise carbon management platform shall perform the following operations: Receive and parse data packets to obtain the refrigerant dissipation amount. and device identifier; The global warming potential of the refrigerant used in the refrigeration equipment is obtained by querying the database based on the equipment identifier. ; Based on refrigerant dissipation and global warming potential The equivalent of emitted carbon dioxide is calculated using the following formula: in, This is the equivalent of carbon dioxide emitted in the current episode. It is the amount of refrigerant dissipated. It is the global warming potential; The calculated carbon dioxide equivalent of the current emission. This is accumulated in the carbon account corresponding to the refrigeration equipment identifier.

9. A fugitive carbon source emission monitoring system for implementing the method according to any one of claims 1 to 8, characterized in that, include: The sensor module includes: A pressure sensor is installed on the first refrigerant pipe connecting the indoor and outdoor units of the refrigeration equipment, close to the indoor unit side, to collect pressure signals in the pipe. A temperature sensor is installed on the second refrigerant pipe of the indoor unit of the refrigeration equipment to collect the refrigerant temperature signal in the pipe; The data acquisition and processing module, connected to the sensor module, is used for: Receive and process the temperature signal and the pressure signal; After determining that the refrigeration equipment is in a stable operating condition and the external environmental conditions are constant, temperature control is initiated to regulate and stabilize the refrigerant temperature at the preset stable temperature threshold. Once the refrigerant temperature stabilizes, the real-time pressure data collected by the pressure sensor is acquired and smoothed and filtered to obtain the average pressure value. Based on the pressure-medium quantity relationship model established by the ideal gas law, combined with the initial filling parameters and average pressure value, the refrigerant dissipation amount is calculated. The communication module, connected to the data acquisition and processing module, is used to wirelessly transmit data packets containing refrigerant emissions, device identifiers, and timestamps to the enterprise carbon management platform. The power supply module is used to power the sensor module, data acquisition and processing module, and communication module.

10. A storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the steps of the fugitive carbon source emission monitoring method as described in any one of claims 1 to 8.

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