Method, device and system for calculating component weight of large-volume gas cylinder and medium

Abstract

The invention relates to the technical field of metering and weighing, in particular to a method, device and system for calculating the component weight of a large-volume gas cylinder and a medium. The method comprises the following steps: determining a first preset length ratio of a first pipeline to a second pipeline according to volume parameters of a first receiving gas cylinder and a second receiving gas cylinder, and calculating the total volume of the two pipelines by combining geometric characteristics of the pipelines. Then, the controller synchronously controls related valves to be opened, the valves are closed after the gas is stably transmitted to a preset time length, and gas mass change data of the gas source gas cylinder and the first receiving gas cylinder are collected through a first balance and a second balance; then, the gas variation of the second receiving gas cylinder is calculated according to the law of conservation of mass; in consideration of actual influence factors, a second preset length ratio which is more practical is obtained through optimization according to the gas variation of the two receiving gas cylinders; and finally, the related steps are repeated based on the proportion, and the component weight of the second receiving gas cylinder is obtained.

Description

Technical Field

[0001] The present invention relates to the technical field of measurement and weighing, and in particular to a method, device, system and medium for calculating the weight of components of a large-volume gas cylinder. Background Art

[0002] Currently, the Mettler Toledo ICS435 balance, with a 1g graduation and a range of 0-150kg, is commonly used to weigh large gas cylinders (e.g., 40L). However, in actual weighing, the accuracy and stability of the results are difficult to guarantee due to various factors, including environmental factors and operator technique. Due to the inherent weight of large gas cylinders, weighing operations such as adding gas can result in errors exceeding 5%, severely impacting data accuracy and making it difficult to meet high-precision weighing requirements.

[0003] Based on this, the present invention proposes a method for calculating the component weights of large-volume gas cylinders to solve the above technical problems. Summary of the Invention

[0004] The invention describes a method for calculating the weight of components of a large-volume gas cylinder, which can accurately calculate the weight of the components of the large-volume gas cylinder.

[0005] The present invention provides a method for calculating the component weight of a large-volume gas cylinder, and a controller for a component weight calculation system of a large-volume gas cylinder. The component weight calculation system includes a gas source cylinder, a first pipeline, a second pipeline, a first receiving gas cylinder, a second receiving gas cylinder, a first balance, a second balance, a gas source switch valve, a first switch valve, a second switch valve, and the controller. The gas source cylinder, the first pipeline, and the first receiving gas cylinder are connected in sequence. The gas source cylinder, the second pipeline, and the second receiving gas cylinder are connected in sequence. The controller is electrically connected to the first balance, the second balance, the gas source switch valve, the first switch valve, and the second switch valve, respectively. The gas source cylinder is arranged on the first balance, the first receiving gas cylinder is arranged on the second balance, the gas source switch valve is arranged at the outlet of the gas source cylinder, the first switch valve is arranged at the inlet of the first receiving gas cylinder, and the second switch valve is arranged at the inlet of the second receiving gas cylinder. The volume of the first receiving gas cylinder is smaller than that of the second receiving gas cylinder. The method includes:

[0006] Step S1: determining a first preset length ratio between the first pipeline and the second pipeline based on volumes of the first receiving gas cylinder and the second receiving gas cylinder;

[0007] Step S2: determining the total volume of the first pipeline and the second pipeline based on the first preset length ratio;

[0008] Step S3: Controlling the gas source switch valve, the first switch valve, and the second switch valve to open simultaneously; after a preset time, controlling the gas source switch valve, the first switch valve, and the second switch valve to close simultaneously; and using the first balance and the second balance to determine the gas changes in the gas source cylinder and the first receiving cylinder at this time;

[0009] Step S4: determining a gas change in the second receiving gas cylinder based on the total volume, the gas change in the gas source cylinder, and the gas change in the first receiving gas cylinder;

[0010] Step S5: determining a second preset length ratio between the first pipeline and the second pipeline based on the gas change amounts in the first receiving gas cylinder and the second receiving gas cylinder;

[0011] Step S6: Based on the second preset length ratio, re-execute steps S3 and S4 to calculate the actual component weight of the second receiving gas cylinder.

[0012] In a second aspect, an embodiment of the present invention further provides a component weight calculation device for a large-volume gas cylinder, and a controller for a component weight calculation system for a large-volume gas cylinder, wherein the component weight calculation system includes a gas source cylinder, a first pipeline, a second pipeline, a first receiving gas cylinder, a second receiving gas cylinder, a first balance, a second balance, a gas source switch valve, a first switch valve, a second switch valve, and the controller, wherein the gas source cylinder, the first pipeline, and the first receiving gas cylinder are connected in sequence, the gas source cylinder, the second pipeline, and the second receiving gas cylinder are connected in sequence, and the controller is electrically connected to the first balance, the second balance, the gas source switch valve, the first switch valve, and the second switch valve, respectively; the gas source cylinder is arranged on the first balance, the first receiving gas cylinder is arranged on the second balance, the gas source switch valve is arranged at the outlet of the gas source cylinder, the first switch valve is arranged at the inlet of the first receiving gas cylinder, and the second switch valve is arranged at the inlet of the second receiving gas cylinder; the volume of the first receiving gas cylinder is smaller than the volume of the second receiving gas cylinder; the device includes:

[0013] The first data processing unit is configured to, in step S1, determine a first preset length ratio between the first pipeline and the second pipeline based on volumes of the first receiving gas cylinder and the second receiving gas cylinder;

[0014] A second data processing unit is configured to determine, in step S2, a total volume of the first pipeline and the second pipeline based on the first preset length ratio;

[0015] The third data processing unit is configured to, in step S3, control the gas source switch valve, the first switch valve, and the second switch valve to be opened simultaneously, and after a first preset time, control the gas source switch valve, the first switch valve, and the second switch valve to be closed simultaneously, and use the first balance and the second balance to determine the gas change in the gas source cylinder and the first receiving cylinder at this time, respectively;

[0016] A fourth data processing unit is configured to determine, in step S4, a gas change amount of the second receiving gas cylinder based on the total volume, the gas change amount of the gas source gas cylinder, and the gas change amount of the first receiving gas cylinder;

[0017] A fifth data processing unit is configured to determine, in step S5, a second preset length ratio between the first pipeline and the second pipeline based on the gas change amounts of the first receiving gas cylinder and the second receiving gas cylinder;

[0018] The sixth data processing unit is configured to perform step S6, based on the second preset length ratio, re-execute step S3 and step S4 to calculate the actual component weight of the second receiving gas cylinder.

[0019] In the third aspect, an embodiment of the present specification also provides a component weight calculation system, characterized in that it includes a gas source cylinder, a first pipeline, a second pipeline, a first receiving cylinder, a second receiving cylinder, a first balance, a second balance, a gas source switch valve, a first switch valve, a second switch valve and the controller, the gas source cylinder, the first pipeline and the first receiving cylinder are connected in sequence, the gas source cylinder, the second pipeline and the second receiving cylinder are connected in sequence, the controller is electrically connected to the first balance, the second balance, the gas source switch valve, the first switch valve and the second switch valve respectively, the gas source cylinder is arranged on the first balance, the first receiving cylinder is arranged on the second balance, the gas source switch valve is arranged at the outlet of the gas source cylinder, the first switch valve is arranged at the inlet of the first receiving cylinder, the second switch valve is arranged at the inlet of the second receiving cylinder, the volume of the first receiving cylinder is smaller than the volume of the second receiving cylinder, and the controller is used to execute the method described in any embodiment of this specification.

[0020] In a fourth aspect, an embodiment of this specification further provides an electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method described in any embodiment of this specification is implemented.

[0021] In a fifth aspect, an embodiment of this specification further provides a computer-readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute the method described in any embodiment of this specification.

[0022] According to the method for calculating the component weight of a large-volume gas cylinder provided by the present invention, first, based on the volume parameters of the first receiving gas cylinder and the second receiving gas cylinder, a first preset length proportional relationship between the first pipeline and the second pipeline is determined. Subsequently, based on this proportional relationship, combined with the geometric characteristics of the pipeline, the total volume of the first pipeline and the second pipeline is further calculated. Next, the controller synchronously controls the opening of the gas source switch valve, the first switch valve and the second switch valve to allow the gas to flow stably in the pipeline system, and quickly closes the above valves after reaching the preset time. At this time, relying on the first balance and the second balance electrically connected to the controller, the gas mass changes of the gas source cylinder and the first receiving gas cylinder are collected and recorded in real time. Then, based on the acquired total pipeline volume, the gas change data of the gas source cylinder and the first receiving gas cylinder, combined with the law of conservation of mass, the gas change of the second receiving gas cylinder is calculated. Since the first preset length ratio only considers the impact of volume parameters on the pipeline length ratio, in actual experimental environments, the pipeline length ratio is also affected by various factors such as gas flow rate, temperature, and pipeline inner wall roughness. Therefore, it is necessary to further determine a second preset length ratio for the first and second pipelines that better reflects the actual situation based on the gas changes in the first and second receiving cylinders. Finally, based on the newly determined second preset length ratio, the gas charging and discharging and data collection calculation steps (steps S3 and S4) are re-executed to obtain reliable component weight data for the second receiving cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic flow chart illustrating a method for calculating the weight of components of a large-volume gas cylinder according to one embodiment is shown;

[0025] Figure 2 A schematic diagram showing the structure of a component weight calculation system according to one embodiment;

[0026] Figure 3 A partial schematic diagram showing the structure of a component weight calculation system according to one embodiment;

[0027] Figure 4 4 is a structural diagram of a component weight calculation system provided by an embodiment of the present invention.

[0028] Reference numerals:

[0029] 1- Gas source cylinder;

[0030] 2-First receiving gas cylinder;

[0031] 3-Second receiving gas cylinder;

[0032] 4-Controller;

[0033] 5-Second level;

[0034] 6- First level;

[0035] 7-first pipeline;

[0036] 8- Second pipeline;

[0037] 9-Quantitative tube;

[0038] 10-Stop valve. DETAILED DESCRIPTION

[0039] The solution provided by the present invention is described below with reference to the accompanying drawings.

[0040] Figure 1 A flow chart illustrating a method for calculating the weight of components of a large-volume gas cylinder according to one embodiment is shown. It is understood that the method can be executed by any device, equipment, platform, or device cluster with computing and processing capabilities. A method for calculating the component weight of a large-volume gas cylinder is provided, and a controller 4 is applied to a component weight calculation system for a large-volume gas cylinder. The component weight calculation system includes a gas source cylinder 1, a first pipeline 7, a second pipeline 8, a first receiving gas cylinder 2, a second receiving gas cylinder 3, a first balance 6, a second balance 5, a gas source switch valve, a first switch valve, a second switch valve, and a controller 4. The gas source cylinder 1, the first pipeline 7, and the first receiving gas cylinder 2 are connected in sequence. The gas source cylinder 1, the second pipeline 8, and the second receiving gas cylinder 3 are connected in sequence. The controller 4 is electrically connected to the first balance 6, the second balance 5, the gas source switch valve, the first switch valve, and the second switch valve, respectively. The gas source cylinder 1 is provided on the first balance 6, the first receiving gas cylinder 2 is provided on the second balance 5, the gas source switch valve is provided at the outlet of the gas source cylinder 1, the first switch valve is provided at the inlet of the first receiving gas cylinder 2, and the second switch valve is provided at the inlet of the second receiving gas cylinder 3. The volume of the first receiving gas cylinder 2 is smaller than that of the second receiving gas cylinder 3. Figure 1 As shown, the method includes:

[0041] Step S1: determining a first preset length ratio between the first pipeline 7 and the second pipeline 8 based on the volumes of the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0042] Step S2: determining the total volume of the first pipeline 7 and the second pipeline 8 based on the first preset length ratio;

[0043] Step S3: Control the gas source switch valve, the first switch valve, and the second switch valve to open simultaneously. After a preset time, control the gas source switch valve, the first switch valve, and the second switch valve to close simultaneously, and use the first balance 6 and the second balance 5 to determine the gas changes in the gas source cylinder 1 and the first receiving cylinder 2 at this time.

[0044] Step S4: determining the gas change in the second receiving gas cylinder 3 based on the total volume, the gas change in the gas source cylinder 1 and the first receiving gas cylinder 2;

[0045] Step S5: determining a second preset length ratio between the first pipeline 7 and the second pipeline 8 based on the gas change in the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0046] Step S6: Based on the second preset length ratio, re-execute steps S3 and S4 to calculate the actual component weight of the second receiving gas cylinder 3.

[0047] In this embodiment, first, based on the volume parameters of the first receiving gas cylinder 2 and the second receiving gas cylinder 3, the first preset length ratio relationship between the first pipeline 7 and the second pipeline 8 is determined. Subsequently, based on this ratio relationship, combined with the geometric characteristics of the pipeline, the total volume of the first pipeline 7 and the second pipeline 8 is further calculated. Next, the controller 4 synchronously controls the opening of the gas source switch valve, the first switch valve and the second switch valve to allow the gas to flow stably in the pipeline system, and quickly closes the above valves after reaching the preset time. At this time, relying on the first balance 6 and the second balance 5 electrically connected to the controller 4, the gas mass changes of the gas source cylinder 1 and the first receiving gas cylinder 2 are collected and recorded in real time. Then, based on the obtained total pipeline volume, the gas change data of the gas source cylinder 1 and the first receiving gas cylinder 2, combined with the law of conservation of mass, the gas change of the second receiving gas cylinder 3 is calculated. Since the first preset length ratio only considers the impact of volume parameters on the pipeline length ratio, and in actual experimental environments, the pipeline length ratio is also affected by various factors such as gas flow rate, temperature, and pipeline inner wall roughness, it is necessary to further determine a second preset length ratio for first pipeline 7 and second pipeline 8 that better reflects actual conditions based on the gas variation in the first and second receiving gas cylinders 3. Finally, based on the newly determined second preset length ratio, the gas charging and discharging and data collection calculation steps (steps S3 and S4) are re-executed to ultimately obtain reliable component weight data for the second receiving gas cylinder 3.

[0048] like Figure 2As shown, in this embodiment, the component weight calculation system includes a gas source cylinder 1, a first pipeline 7, a second pipeline 8, a first receiving cylinder 2, a second receiving cylinder 3, a first balance 6, a second balance 5, a gas source on / off valve (not shown), a first on / off valve (not shown), a second on / off valve (not shown), and a controller 4. In this system, the gas source cylinder 1 is sequentially connected to the first receiving cylinder 2 via the first pipeline 7 and to the second receiving cylinder 3 via the second pipeline 8. The controller 4 serves as the core control unit, establishing electrical connections with the first balance 6, the second balance 5, the gas source on / off valve, the first on / off valve, and the second on / off valve, enabling control and data exchange between the various system components. The gas source cylinder 1 is placed on the first balance 6 to monitor gas quality changes in real time; the first receiving cylinder 2 is placed on the second balance 5 to accurately measure the weight of the received gas. The gas source on / off valve is installed at the outlet of the gas source cylinder 1, while the first on / off valve and the second on / off valve are located at the inlets of the first receiving cylinder 2 and the second receiving cylinder 3, respectively, to control the flow of gas.

[0049] In one embodiment of the present invention, step S2 includes:

[0050] Step S21, vacuuming the gas source cylinder 1, the first receiving gas cylinder 2, and the second receiving gas cylinder 3;

[0051] Step S22: Open the first on-off valve and fill the first receiving gas cylinder 2 with nitrogen;

[0052] Step S23: When the pressure in the first receiving gas cylinder 2 reaches a preset pressure, stop filling with nitrogen and close the first switch valve;

[0053] Step S24: close the second on-off valve and the gas source on-off valve, open the first on-off valve, and after a second preset time, close the first on-off valve to exhaust the gas in the first pipeline 7 and the second pipeline 8, and use the second balance 5 to measure the first weight of the first receiving gas cylinder 2;

[0054] Step S25: Open the first on-off valve, and after a third preset time, record the pressures in the first pipeline 7 and the second pipeline 8. Close the first on-off valve to exhaust the gas in the first pipeline 7 and the second pipeline 8, and measure the second weight of the first receiving gas cylinder 2 using the second balance 5.

[0055] Step S26: determining a weight difference based on the first weight and the second weight;

[0056] Step S28 : Determine the total volume of the first pipeline 7 and the second pipeline 8 based on the weight difference and the pressures in the first pipeline 7 and the second pipeline 8 .

[0057] In this embodiment, step S2 is specifically broken down into the following series of operations: Evacuate the source gas cylinder 1, the first receiving gas cylinder 2, and the second receiving gas cylinder 3 to ensure a near-vacuum state within each cylinder, paving the way for subsequent precise gas filling and measurement. Open the first on / off valve to begin filling the first receiving gas cylinder 2 with nitrogen. During this process, close attention must be paid to ensure a stable and even flow of gas into the cylinders. When the pressure in the first receiving gas cylinder 2 reaches a preset pressure value, the nitrogen filling operation is immediately stopped, and the first switch valve is quickly closed, the second switch valve and the gas source switch valve are closed, and the first switch valve is opened to allow the nitrogen in the first receiving gas cylinder 2 to flow into the first pipeline 7 and the second pipeline 8. After the second preset time, the first switch valve is closed to empty the gas in the first pipeline 7 and the second pipeline 8, and the first weight of the first receiving gas cylinder 2 is measured using the second balance 5; the first switch valve is opened to allow the new nitrogen in the first receiving gas cylinder 2 to flow into the first pipeline 7 and the second pipeline 8 after the third preset time, the pressure in the first pipeline 7 and the second pipeline 8 is recorded, the first switch valve is closed to empty the gas in the first pipeline 7 and the second pipeline 8, and the second weight of the first receiving gas cylinder 2 is measured using the second balance 5; based on the calculated weight difference and the pressure in the first pipeline 7 and the second pipeline 8, the total volume of the first pipeline 7 and the second pipeline 8 is finally determined.

[0058] In one embodiment of the present invention, after determining the weight difference based on the first weight and the second weight, the method further includes:

[0059] Execute steps S21 to S26 in a loop to obtain multiple weight difference values;

[0060] Averaging the multiple weight differences to obtain an averaged weight difference;

[0061] The final total volume of the first pipeline 7 and the second pipeline 8 is determined according to the averaged weight difference.

[0062] In this embodiment, after obtaining the difference between the first weight and the second weight (i.e., the weight difference), in order to further improve the accuracy and reliability of the measurement results, an optimization strategy of averaging multiple measurements is adopted: first, steps S21 to S26 are executed in a loop, and multiple weight differences are obtained by repeatedly performing operations such as vacuuming, filling with nitrogen, pressure adjustment, gas emptying, and weight measurement; then, the multiple weight differences obtained are statistically analyzed, and the averaged weight difference is obtained by arithmetic average calculation; finally, based on the averaged weight difference, combined with the gas state equation and related physical parameters, the final total volume of the first pipeline 7 and the second pipeline 8 is accurately calculated, thereby reducing the impact of single measurement errors on the results and achieving high-precision measurement of the total volume of the pipeline.

[0063] In this embodiment, first, 8L (first receiving gas cylinder 2), 20L first receiving gas cylinder 2 (gas source gas cylinder 1) and 40L (first receiving gas cylinder 2) are connected to the gas distribution equipment. Then, the vacuum valve is opened, and the air in the pipeline is completely extracted using a vacuum pump. After that, the vacuum valve is closed to ensure that the pipeline is in a relatively pure environment and reduce the interference of external air on subsequent experiments. Subsequently, the valve of the 8L gas cylinder is opened, and the nitrogen valve is controlled to fill the 8L gas cylinder with nitrogen. When the pressure in the gas cylinder reaches 10MPa (this pressure value can be flexibly adjusted according to the actual measurement requirements, and the key is to ensure that there is enough gas for measurement), the nitrogen valve and the 8L gas source switch valve are closed in time to accurately control the gas amount and pressure in the gas cylinder. After completing the inflation, the pressure in the pipeline is released through the vent valve, and the pipeline is restored to its initial state. At this point, the 8L gas cylinder is weighed using a high-precision weighing device, and its weight is recorded as 8511.20g. Afterwards, the 8L gas cylinder is connected to the gas distribution equipment again and the operation of evacuating the pipeline is repeated. By controlling the 8L gas source on-off valve, the system pressure was raised to 1kg. The valve was then closed, venting the pressure from the pipeline once more. The 8L gas cylinder was weighed again, recording a weight of 8510.91g. The difference between the two weights was calculated: 8511.2 - 8510.91 = 0.29g. Based on the ideal gas state equation, a precise calculation yielded the corresponding volume, V = 0.232L. To improve the accuracy and reliability of the measurement results, multiple measurements and calculations were performed under varying pipeline pressures, following the aforementioned procedure. Finally, a statistical analysis of all the measurement results revealed an average value of 0.2315L.

[0064] In one embodiment of the present invention, the total volume is determined by the following formula:

[0065] V=mRTMP

[0066] Wherein, V is the total volume, m is the weight difference, M is the molar mass, R is the universal gas constant, T is the thermodynamic temperature of the gas, and P is the pressure in the first pipeline 7 and the second pipeline 8.

[0067] In one embodiment of the present invention, step S1 includes:

[0068] determining a first flow ratio of the first receiving gas cylinder 2 to the second receiving gas cylinder 3 based on volumes of the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0069] Based on the first flow ratio, a first preset length ratio between the first pipeline 7 and the second pipeline 8 is determined.

[0070] In this embodiment, when the lengths of first pipeline 7 and second pipeline 8 are equal, a first flow ratio between first and second receiving cylinders 2 and 3 is first calculated based on the volume parameters of the first and second receiving cylinders 2 and 3. This ratio reflects the flow rate differences between gas flowing into cylinders of different volumes under the same pipeline length conditions. Then, based on this first flow ratio, a first predetermined length ratio is determined for first pipeline 7 and second pipeline 8, assuming the flow rates of first and second receiving cylinders 2 and 3 are the same. This provides a key parameter basis for subsequent precise control of gas distribution and pipeline design.

[0071] In this embodiment, the gas source switching valves used in the system (covering brands such as Sanan, Huqiwei, GCE, and Rodales) and the panel valves on the gas distribution equipment (Swagelok brand) all have a unified diameter specification of 4mm. The pipelines of the gas distribution equipment use 1 / 4-inch stainless steel internal polished tubes with an inner diameter accurate to 6.35mm; the inner diameter of the pneumatic valve is 2.5mm. The first pipeline 7 and the second pipeline 8 both use stainless steel internal polished tubes of the same manufacturer and the same model, with an inner diameter of 1.755mm. This size constitutes the minimum inner diameter constraint in the entire gas passage. Based on the characteristics of the external pipeline, it is assumed that the friction coefficient and inner diameter size of the two pipelines are exactly the same. When performing synchronous inflation operations on 40L gas cylinders and 8L gas cylinders, in order to ensure that the pressure rise rate of the two remains consistent (that is, the derivative of pressure with respect to time dP / dt is equal), it is assumed that the temperature remains constant during the inflation process. According to the ideal gas state equation (PV = nRT), since pressure P is directly proportional to the amount of gas n, we can deduce that dn / dt = (P / (RT)) * dv / dt. Given that the volume v of the cylinder remains fixed during inflation, the rate of change of pressure dP / dt is directly dependent on the rate of change of the amount of gas dn / dt. Furthermore, the gas flow rate Q can be further converted to mass flow rate for analysis. Theoretical analysis shows that larger cylinders require higher gas flow rates to achieve the same rate of pressure change as smaller cylinders. For example, for a 40L cylinder and an 8L cylinder, the relationship Q8 / V8 = Q40 / V40 must be met. This leads to the required flow rate ratio of Q8 / Q40 = V8 / V40 = 8 / 40 = 1 / 5. This means that the required gas flow rate for the 40L cylinder should be five times that of the 8L cylinder to ensure the same rate of pressure increase. Given that the two pipes connect to the same gas source and have the same target pressure differential, fluid dynamics formulas indicate that the required length ratio is 25:1. Specifically, if the pipe length for a 40L cylinder is set to 1 meter, the pipe length for an 8L cylinder should be 25 meters to achieve precise inflation control.

[0072] In one embodiment of the present invention, step S5 includes:

[0073] determining a second flow ratio between the first receiving gas cylinder 2 and the second receiving gas cylinder 3 based on the gas changes in the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0074] Based on the second flow ratio, a second preset length ratio between the first pipeline 7 and the second pipeline 8 is determined.

[0075] In this embodiment, while the first preset length ratio represents an ideal length ratio, the actual pipe length ratio may deviate due to factors such as pipe curvature, inconsistencies between actual pipe friction and actual pipe inner diameter, temperature fluctuations during the inflation process, and a drop in gas source pressure during the inflation process. Therefore, the optimal length ratio requires further confirmation through relevant experiments. Therefore, the second preset length ratio must be further determined. Nitrogen is simultaneously added to the 8L and 40L gas cylinders. When the pressure within the cylinders reaches a specific value, the first and second on-off valves are closed. Subsequently, the gas flow rates within the 8L and 40L cylinders are determined by measuring the weight changes of the two cylinders, and the appropriate pipe length ratio is calculated using a relevant formula. Before the experiment begins, the vacuum-treated cylinders are accurately weighed. The 20L aluminum alloy cylinder weighs 19,800.5g and is weighed using an Intec SIWADCP-1-35-S balance with a weighing range of 0-35,000g and a graduation of 0.5g. After filling the 20L gas cylinder with nitrogen at approximately 15MPa, it was weighed again and found to weigh 23550.5g. The 8L gas cylinder, after vacuum treatment, weighed 7501.52g using a Mettler Toledo MSI2002TS / 02 balance with a 0.01g scale and a range of 0-12200g. The 8L, 20L, and 40L gas cylinders were connected to the system. The evacuation valves were opened, and the air in the pipelines was completely evacuated using a vacuum pump. The evacuation valves were then closed. Next, the valves of the 8L and 40L gas cylinders were opened, the first and second on-off valves were closed, and the valve of the 20L gas cylinder was opened. The first and second on-off valves were opened simultaneously by controller 4. When the balance reading corresponding to the 8L gas cylinder reached 200g, the first and second on-off valves were quickly and simultaneously closed. The valves of the 8L, 40L, and 20L gas cylinders were then closed. Afterwards, the first and second on-off valves were reopened, and the pressure in the pipeline was recorded as 78.3 kg / cm². The pipeline was then vented, and the 8L gas cylinder was weighed again, finding it to be 7702.33 g, a weight difference of 200.81 g. The 20L gas cylinder was weighed again, finding it to be 22301.0 g, a weight difference of 1249.5 g.

[0076] The weight of the gas in the pipeline can be calculated using the ideal gas state equation: PV = nRT. Calculation yields 78.3 × 0.2315 = m × 22.4 ÷ 28, solving for m = 22.658 g. This means the weight change of the 40L cylinder is 1249.5 - 22.658 - 200.81 = 1026.032 g. Calculation also shows that the flow rate ratio of the 40L cylinder to the 8L cylinder is 1026.032 ÷ 200.81 = 5.1094, or Q40 / Q8 = 5.1094. If the pipeline length corresponding to the 40L cylinder is fixed at 1 meter, the pipeline length corresponding to the 8L cylinder can be adjusted to achieve the flow rate ratio of Q40 / Q8 = 5. Calculation shows that the pipeline length L corresponding to the 8L cylinder should be 23.94 meters.

[0077] After adjusting the length of the 8L pipeline to 23.94 meters, multiple experiments were conducted. The experimental data are shown in Table 1.

[0078] Table 1

[0079]

[0080] The length of the 40L 1m 8L pipeline is 23.94 meters, and the flow ratio obtained meets the requirements.

[0081] In this embodiment, the actual production will have a deviation of less than +5% due to the volume of the 40L gas cylinder. When using this method to inflate, because the volume is not 5 times, the original balance will be broken, resulting in inconsistent pressure change rate ΔP, causing deviation in the results. The actual volume tolerance of large-capacity gas cylinders is within +5%. Taking 40L as an example, the maximum volume is 42L. A double-headed valve (EF) container with an actual volume of 8L is used, and one end of the valve is connected to a 25-meter pipeline, such as Figure 3As shown, the other end of the valve is connected to multiple sets of 40mL dosing tubes 9 with a shutoff valve 10. By opening and closing multiple valves (such as EHI) to connect the 40mL dosing tubes 9 to the container, and integrating the 8L container with the dosing tubes 9, the volume ratio of the 8L to 40L gas cylinders can be adjusted to 5 or close to 5. The 40mL volume is determined by comparing the flow rate of 40L with five times the flow rate of 8L, with a maximum deviation of 0.5%. 8L x 100.5% = 8.04L, 40L x 0.5% = 40.2L, and the midpoint between 40L and 40.2L is 40.1L. When connected using the 40mL dosing tubes 9, 8.04L x 5 = 40.2L (8L x 5 = 40L), resulting in a maximum deviation of 40.1 / 40.2 = 0.9975 / 1240.1 / 40 = 1.0025, with a ±0.25% deviation less than the 0.5% deviation requirement. If other deviation requirements are required, the dosing tube 9 requirements can be modified. The actual volume of the 40L cylinder is measured to be 40.93L, 40.93 / 5=8.18L, 8.18 / 0.04=4.65. Select an 8L container and a 5-section quantitative tube 9 and a valve. After the vacuum is processed, the weight is 8150.70g. The 20L aluminum alloy gas cylinder with vacuum processing is weighed and weighed, which is 19800.5g. 15MPa nitrogen is injected and the weighed weight is 23567.0g. The three gas cylinders are connected to the system, the evacuation valve is opened to evacuate the air in the pipeline, the evacuation valve is closed, the 8L and 40L gas source switch valves are opened, the first switch valve and the second switch valve are closed, the 20L gas cylinder valve is opened, and the pneumatic first switch valve and the second switch valve are opened at the same time through the controller 4. When the balance change reaches 200g, the pneumatic first switch valve and the second switch valve are closed at the same time, the 8L40L20L gas source switch valve is closed, the pneumatic first switch valve and the second switch valve are opened, the pressure in the pipeline is recorded as 77.2kg / cm2, the pressure in the pipeline is evacuated, and the weight of the 8L bottle is weighed to be 8358.52g. The weight difference is 207.82g.

[0082] The weight of the 20L gas cylinder is 22300.5g, and the weight difference is 1266.5g. According to pv=nRT, the weight of the gas in the pipeline is calculated as 77.2*0.2315=m*22.4 / 28, m=22.34g, and the weight change of 40L is 1036.34g.

[0083] The flow ratio between the 40L gas cylinder, the 8L container and the quantitative tube 9 is 1036.34 / 207.82=4.9867.

[0084] Multiple experiments were performed, and the experimental data are shown in Table 2.

[0085] Table 2

[0086]

[0087] According to these data sets (4.9867+4.9865+4.9924+4.9938+4.9931) / 5=4.9905, when the 8L filling volume is Ag, the 40L filling volume is 4.9905Ag. The above method can be used to find the pipe length suitable for any cylinder volume ratio, and the large volume weight difference can be determined by weighing the small volume weight difference. The results show that this method can be used to simultaneously reach the same pressure for 8L and 40L cylinders. The weight difference of the 8L cylinder can be used to determine the weight difference of the 40L cylinder. This method can be used for single-component filling of liquids or gases in cylinders of different volumes.

[0088] The system is used to configure multi-component standard gas, and its feasibility is verified through experiments.

[0089] Experiment: Use 8L and 40L gas cylinders. Fill each with a certain amount of nitrogen and measure the weight change. Then, fill the cylinders with a certain amount of nitrogen at the same pressure and measure the weight change again. Observe whether the weight changes are consistent.

[0090] Weigh the vacuum-treated 20L aluminum alloy gas cylinder and its weight is 19800.0g. Pour nitrogen gas with a pressure of more than 15mpa into it and its weight is 23566.5g (using Intec SIWADCP-1-35-S with a weighing range of 0-35000g and a graduation value of 0.5g). Weigh the vacuum-treated 8L gas cylinder and its weight is 7501.50g (using a Teleto MSI2002TS / 02 balance with a graduation value of 0.01g and a range of 0-12200g). Connect the three gas cylinders to the system, open the evacuation valve to evacuate the air in the pipeline, close the evacuation valve, and turn on the system. Open the 8L and 40L gas source switch valves, close the first switch valve and the second switch valve, open the 20L gas cylinder valve, and open the first switch valve and the second switch valve at the same time through the controller 4. When the balance change reaches 100g, close the first switch valve and the second switch valve at the same time, close the 8L40L20L gas source switch valve, record the pressure of the first pipeline 7 and the second pipeline 8 on the pressure gauge as P=1.01mpa, open the first switch valve and the second switch valve, record the pressure in the pipeline as 94.5kg / cm2, evacuate the pressure in the pipeline, and weigh the 8L bottle to be 7601.83g. The weight difference is 100.33g. The weight of the 20L gas cylinder is 22,936.5g, and the weight difference is 630.0g. According to pv=nRT, the weight of the gas in the pipeline is calculated to be 94.5*0.2315=m*22.4 / 28, m=27.346g, and the weight difference of 40L is 630.0-27.346-100.33=502.324g. At this time, the pressure of the 20L gas cylinder is reduced, and nitrogen is added above 15mpa. The weight of the weighed gas cylinder is 23560.5g. There is pressure in the 8L gas cylinder and the 40L gas cylinder. Connect the three gas cylinders to the equipment, open the evacuation valve to extract the air in the pipeline, close the evacuation valve, and increase the pressure in the pipeline by controlling the 20L gas source switch valve. The pressure is raised to P = 1.01 MPa, the first and second on-off valves are closed, the 8L and 40L gas source valves are opened, and the 20L gas source valve is opened. The first and second on-off valves are opened simultaneously by the controller 4. When the balance weight change reaches 250g, the first and second on-off valves are closed and started simultaneously, and the 8L, 40L, and 20L gas source valves are closed. The pressure gauge pressure of the first pipeline 7 and the second pipeline 8 is recorded as 3.15 MPa. The first and second on-off valves are opened, and the pressure in the pipeline is recorded as 100.5 kg / cm2. The gas in the pipeline is evacuated, and the 8L and quantitative tube 9 are weighed to 7817.05 g, with a weight difference of 215.22 g. The 20L gas cylinder is weighed to 22240.5 g, with a weight difference of 1320.0 g. The weight of the gas in the pipeline is calculated to be 29.08 g, and the weight difference of the 40L is 1075.7 g.

[0091] Multiple experiments were performed, and the experimental data are shown in Table 3.

[0092] Table 3

[0093]

[0094] The data shows that the flow rate ratios for the two tests were nearly identical, with an error of 0.2%, meeting the deviation requirement. Given the same pressure within the bottle, the amount of gas refilled also conforms to the flow rate variation pattern. This method allows for simultaneous preparation of 8L and 40L of standard gas. The weight difference between the 8L and 40L can be used to determine the concentration of the substance in the 8L, and then the concentration of the substance in the 40L.

[0095] like Figure 2 As shown, an embodiment of the present invention also provides a system for calculating the component weight of a large-volume gas cylinder, including a gas source cylinder 1, a first pipeline 7, a second pipeline 8, a first receiving gas cylinder 2, a second receiving gas cylinder 3, a first balance 6, a second balance 5, a gas source switch valve, a first switch valve, a second switch valve and a controller 4. The gas source cylinder 1, the first pipeline 7 and the first receiving gas cylinder 2 are connected in sequence, and the gas source cylinder 1, the second pipeline 8 and the second receiving gas cylinder 3 are connected in sequence. The controller 4 is electrically connected to the first balance 6, the second balance 5, the gas source switch valve, the first switch valve and the second switch valve respectively. The gas source cylinder 1 is arranged on the first balance 6, the first receiving gas cylinder 2 is arranged on the second balance 5, the gas source switch valve is arranged at the outlet of the gas source cylinder 1, the first switch valve is arranged at the inlet of the first receiving gas cylinder 2, and the second switch valve is arranged at the inlet of the second receiving gas cylinder 3. The volume of the first receiving gas cylinder 2 is smaller than that of the second receiving gas cylinder 3. The controller 4 is used to execute the method described in any embodiment of this specification.

[0096] According to another embodiment, the present invention provides a device for calculating the weight of components of a large-volume gas cylinder. Figure 4A schematic block diagram of a device for calculating the weight of components of a large-volume gas cylinder according to one embodiment is shown. It can be understood that the device can be implemented by any device, equipment, platform, or device cluster with computing and processing capabilities. The device for calculating the component weight of a large-volume gas cylinder is applied to a controller 4 of a component weight calculation system of a large-volume gas cylinder. The component weight calculation system includes a gas source cylinder 1, a first pipeline 7, a second pipeline 8, a first receiving gas cylinder 2, a second receiving gas cylinder 3, a first balance 6, a second balance 5, a gas source switch valve, a first switch valve, a second switch valve and a controller 4. The gas source cylinder 1, the first pipeline 7 and the first receiving gas cylinder 2 are connected in sequence. The gas source cylinder 1, the second pipeline 8 and the second receiving gas cylinder 3 are connected in sequence. The controller 4 is electrically connected to the first balance 6, the second balance 5, the gas source switch valve, the first switch valve and the second switch valve respectively. The gas source cylinder 1 is arranged on the first balance 6, the first receiving gas cylinder 2 is arranged on the second balance 5, the gas source switch valve is arranged at the outlet of the gas source cylinder 1, the first switch valve is arranged at the inlet of the first receiving gas cylinder 2, and the second switch valve is arranged at the inlet of the second receiving gas cylinder 3. The volume of the first receiving gas cylinder 2 is smaller than that of the second receiving gas cylinder 3. Figure 4 As shown, the device includes: a first data processing unit 200, a second data processing unit 202, a third data processing unit 204, a fourth data processing unit 206 and a fifth data processing unit 208. The main functions of each component unit are as follows:

[0097] The first data processing unit is configured to determine, in step S1, a first preset length ratio between the first pipeline 7 and the second pipeline 8 based on the volumes of the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0098] A second data processing unit is configured to determine, in step S2, a total volume of the first pipeline 7 and the second pipeline 8 based on the first preset length ratio;

[0099] The third data processing unit is configured to, in step S3, control the gas source switch valve, the first switch valve, and the second switch valve to be opened simultaneously, and after a first preset time, control the gas source switch valve, the first switch valve, and the second switch valve to be closed simultaneously, and use the first balance 6 and the second balance 5 to respectively determine the gas changes in the gas source cylinder 1 and the first receiving cylinder 2 at this time;

[0100] The fourth data processing unit is configured to determine, in step S4, a gas change amount of the second receiving gas cylinder 3 based on the total volume, the gas change amount of the gas source cylinder 1 and the first receiving gas cylinder 2;

[0101] A fifth data processing unit is configured to determine, in step S5, a second preset length ratio between the first pipeline 7 and the second pipeline 8 based on the gas change amounts of the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0102] The sixth data processing unit is configured to perform step S6, based on the second preset length ratio, re-execute step S3 and step S4 to calculate the actual component weight of the second receiving gas cylinder 3.

[0103] In one embodiment of the present invention, after determining the weight difference based on the first weight and the second weight, the method further includes:

[0104] Execute steps S21 to S26 in a loop to obtain multiple weight difference values;

[0105] Averaging the multiple weight differences to obtain an averaged weight difference;

[0106] The final total volume of the first pipeline 7 and the second pipeline 8 is determined according to the averaged weight difference.

[0107] In one embodiment of the present invention, the total volume is determined by the following formula:

[0108] V=mRTMP

[0109] Wherein, V is the total volume, m is the weight difference, M is the molar mass, R is the universal gas constant, T is the thermodynamic temperature of the gas, and P is the pressure in the first pipeline 7 and the second pipeline 8.

[0110] In one embodiment of the present invention, determining the first preset length ratio of the first pipeline 7 and the second pipeline 8 based on the volumes of the first receiving gas cylinder 2 and the second receiving gas cylinder 3 includes:

[0111] determining a first flow ratio of the first receiving gas cylinder 2 to the second receiving gas cylinder 3 based on volumes of the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0112] Based on the first flow ratio, a first preset length ratio between the first pipeline 7 and the second pipeline 8 is determined.

[0113] In one embodiment of the present invention, determining the second preset length ratio of the first pipeline 7 and the second pipeline 8 based on the gas change amount of the first receiving gas cylinder 2 and the second receiving gas cylinder 3 includes:

[0114] determining a second flow ratio between the first receiving gas cylinder 2 and the second receiving gas cylinder 3 based on the gas changes in the first receiving gas cylinder 2 and the second receiving gas cylinder 3;

[0115] Based on the second flow ratio, a second preset length ratio between the first pipeline 7 and the second pipeline 8 is determined.

[0116] According to another embodiment, there is also provided a computer readable storage medium having a computer program stored thereon, which, when executed in a computer, causes the computer to execute a combination of Figure 1 The method described.

[0117] According to another embodiment, an electronic device is provided, comprising a memory and a processor, wherein the memory stores an executable code, and when the processor executes the executable code, the system realizes the combination of Figure 1 The method described.

[0118] The various embodiments of the present invention are described in a progressive manner. Similar portions between the various embodiments can be referred to in conjunction with each other. Each embodiment focuses on the differences between the other embodiments. In particular, the device embodiments are described briefly because they are generally similar to the method embodiments. For relevant portions, refer to the description of the method embodiments.

[0119] Those skilled in the art will appreciate that, in one or more of the above examples, the functions described herein may be implemented using hardware, software, firmware, or any combination thereof. When implemented using software, these functions may be stored in a computer-readable medium or transmitted as one or more instructions or codes on a computer-readable medium.

[0120] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made on the basis of the technical solution of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for calculating the weight of components of a large-volume gas cylinder, characterized in that: A controller (4) for a component weight calculation system for a large-volume gas cylinder, the component weight calculation system comprising a gas source cylinder (1), a first pipeline (7), a second pipeline (8), a first receiving gas cylinder (2), a second receiving gas cylinder (3), a first balance (6), a second balance (5), a gas source switch valve, a first switch valve, a second switch valve and the controller (4), wherein the gas source cylinder (1), the first pipeline (7) and the first receiving gas cylinder (2) are connected in sequence, the gas source cylinder (1), the second pipeline (8) and the second receiving gas cylinder (3) are connected in sequence, and the controller (4) is respectively connected to the first and second pipelines. A first balance (6), the second balance (5), the gas source switch valve, the first switch valve and the second switch valve are electrically connected; the gas source cylinder (1) is arranged on the first balance (6); the first receiving cylinder (2) is arranged on the second balance (5); the gas source switch valve is arranged at the outlet of the gas source cylinder (1); the first switch valve is arranged at the inlet of the first receiving cylinder (2); the second switch valve is arranged at the inlet of the second receiving cylinder (3); the volume of the first receiving cylinder (2) is smaller than the volume of the second receiving cylinder (3); the method comprises: Step S1: determining a first preset length ratio of the first pipeline (7) and the second pipeline (8) based on the volumes of the first receiving gas cylinder (2) and the second receiving gas cylinder (3); Step S2: determining the total volume of the first pipeline (7) and the second pipeline (8) based on the first preset length ratio; Step S3, controlling the gas source switch valve, the first switch valve, and the second switch valve to open simultaneously, and after a first preset time, controlling the gas source switch valve, the first switch valve, and the second switch valve to close simultaneously, and using the first balance (6) and the second balance (5) to determine the gas change amount of the gas source cylinder (1) and the first receiving cylinder (2) at this time respectively; Step S4, determining the gas change amount of the second receiving gas cylinder (3) based on the total volume, the gas change amount of the gas source cylinder (1) and the first receiving gas cylinder (2); Step S5: determining a second preset length ratio of the first pipeline (7) and the second pipeline (8) based on the gas change amount of the first receiving gas cylinder (2) and the second receiving gas cylinder (3); Step S6: Based on the second preset length ratio, re-execute steps S3 and S4 to calculate the actual component weight of the second receiving gas cylinder (3).

2. The method according to claim 1, characterized in that Step S2 includes: Step S21, evacuating the gas source cylinder (1), the first receiving cylinder (2), and the second receiving cylinder (3); Step S22: opening the first on-off valve and filling the first receiving gas cylinder (2) with nitrogen; Step S23: When the pressure in the first receiving gas cylinder (2) reaches a preset pressure, stop filling with nitrogen and close the first switch valve; Step S24: closing the second on-off valve and the gas source on-off valve, opening the first on-off valve, and closing the first on-off valve after a second preset time, exhausting the gas in the first pipeline (7) and the second pipeline (8), and measuring the first weight of the first receiving gas cylinder (2) using the second balance (5); Step S25: opening the first on-off valve, recording the pressures in the first pipeline (7) and the second pipeline (8) after a third preset time, closing the first on-off valve, exhausting the gas in the first pipeline (7) and the second pipeline (8), and measuring the second weight of the first receiving gas cylinder (2) using the second balance (5); Step S26: determining a weight difference based on the first weight and the second weight; Step S28: Determine the total volume of the first pipeline (7) and the second pipeline (8) based on the weight difference and the pressure in the first pipeline (7) and the second pipeline (8).

3. The method according to claim 2, characterized in that After determining a weight difference based on the first weight and the second weight, the method further includes: Execute steps S21 to S26 in a loop to obtain multiple weight difference values; Averaging the multiple weight differences to obtain an averaged weight difference; The final total volume of the first pipeline (7) and the second pipeline (8) is determined based on the averaged weight difference.

4. The method according to claim 2, characterized in that The total volume is determined by the following formula: V=mRTMP Wherein, V is the total volume, m is the weight difference, M is the molar mass, R is the universal gas constant, T is the thermodynamic temperature of the gas, and P is the pressure in the first pipeline (7) and the second pipeline (8).

5. The method according to claim 1, wherein The determining of a first preset length ratio of the first pipeline (7) and the second pipeline (8) based on the volumes of the first receiving gas cylinder (2) and the second receiving gas cylinder (3) comprises: Determining a first flow ratio of the first receiving gas cylinder (2) and the second receiving gas cylinder (3) based on the volumes of the first receiving gas cylinder (2) and the second receiving gas cylinder (3); Based on the first flow ratio, a first preset length ratio of the first pipeline (7) and the second pipeline (8) is determined.

6. The method according to claim 1, characterized in that The determining of the second preset length ratio of the first pipeline (7) and the second pipeline (8) based on the gas change amount of the first receiving gas cylinder (2) and the second receiving gas cylinder (3) comprises: Determining a second flow ratio of the first receiving gas cylinder (2) and the second receiving gas cylinder (3) based on the gas change amounts of the first receiving gas cylinder (2) and the second receiving gas cylinder (3); Based on the second flow ratio, a second preset length ratio of the first pipeline (7) and the second pipeline (8) is determined.

7. A device for calculating the weight of components of a large-volume gas cylinder, characterized in that: A controller (4) for a component weight calculation system for a large-volume gas cylinder, the component weight calculation system comprising a gas source cylinder (1), a first pipeline (7), a second pipeline (8), a first receiving gas cylinder (2), a second receiving gas cylinder (3), a first balance (6), a second balance (5), a gas source switch valve, a first switch valve, a second switch valve and the controller (4), wherein the gas source cylinder (1), the first pipeline (7) and the first receiving gas cylinder (2) are connected in sequence, the gas source cylinder (1), the second pipeline (8) and the second receiving gas cylinder (3) are connected in sequence, and the controller (4) is respectively connected to the first and second pipelines. A first balance (6), the second balance (5), the gas source switch valve, the first switch valve and the second switch valve are electrically connected; the gas source cylinder (1) is arranged on the first balance (6), the first receiving cylinder (2) is arranged on the second balance (5), the gas source switch valve is arranged at the outlet of the gas source cylinder (1), the first switch valve is arranged at the inlet of the first receiving cylinder (2), the second switch valve is arranged at the inlet of the second receiving cylinder (3), and the volume of the first receiving cylinder (2) is smaller than the volume of the second receiving cylinder (3); the device comprises: The first data processing unit is configured to determine, in step S1, a first preset length ratio of the first pipeline (7) and the second pipeline (8) based on the volumes of the first receiving gas cylinder (2) and the second receiving gas cylinder (3); A second data processing unit is configured to determine, in step S2, the total volume of the first pipeline (7) and the second pipeline (8) based on the first preset length ratio; The third data processing unit is configured to perform step S3, control the gas source switch valve, the first switch valve and the second switch valve to be opened simultaneously, and after a first preset time, control the gas source switch valve, the first switch valve and the second switch valve to be closed simultaneously, and respectively use the first balance (6) and the second balance (5) to determine the gas change amount of the gas source cylinder (1) and the first receiving cylinder (2) at this time; The fourth data processing unit is configured to determine the gas change amount of the second receiving gas cylinder (3) based on the total volume, the gas change amount of the gas source gas cylinder (1) and the first receiving gas cylinder (2) in step S4; a fifth data processing unit configured to, in step S5, determine a second preset length ratio of the first pipeline (7) and the second pipeline (8) based on the gas change amount of the first receiving gas cylinder (2) and the second receiving gas cylinder (3); The sixth data processing unit is configured to perform step S6, based on the second preset length ratio, re-execute step S3 and step S4 to calculate the actual component weight of the second receiving gas cylinder (3).

8. A component weight calculation system, characterized in that: The invention comprises a gas source cylinder (1), a first pipeline (7), a second pipeline (8), a first receiving gas cylinder (2), a second receiving gas cylinder (3), a first balance (6), a second balance (5), a gas source switch valve, a first switch valve, a second switch valve and the controller (4), wherein the gas source cylinder (1), the first pipeline (7) and the first receiving gas cylinder (2) are connected in sequence, the gas source cylinder (1), the second pipeline (8) and the second receiving gas cylinder (3) are connected in sequence, and the controller (4) is respectively connected to the first balance (6), the second balance (5), the gas source switch valve, the first The switch valve and the second switch valve are electrically connected, the gas source cylinder (1) is arranged on the first balance (6), the first receiving cylinder (2) is arranged on the second balance (5), the gas source switch valve is arranged at the outlet of the gas source cylinder (1), the first switch valve is arranged at the inlet of the first receiving cylinder (2), and the second switch valve is arranged at the inlet of the second receiving cylinder (3), the volume of the first receiving cylinder (2) is smaller than the volume of the second receiving cylinder (3), and the controller (4) is used to execute the method as described in any one of claims 1 to 6.

9. An electronic device, characterized in that: The method comprises a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, the method according to any one of claims 1 to 6 is implemented.

10. A computer-readable storage medium, characterized in that A computer program is stored thereon, and when the computer program is executed in a computer, the computer is caused to execute the method according to any one of claims 1 to 6.

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