Hydrogen filling station next day hydrogen purchase amount calculation system and calculation method

Abstract

The application discloses a hydrogen filling station next-day hydrogen purchase quantity calculation system, which comprises a filling column data acquisition module, a hydrogen storage bottle data acquisition module and a hydrogen purchase data processing and analysis module; the filling column data acquisition module acquires real-time data of each filling of a hydrogen filling column in a day and sends the data to the hydrogen purchase data processing and analysis module, the hydrogen storage bottle data acquisition module acquires hydrogen storage bottle residual quantity data in a day, and the hydrogen purchase data processing and analysis module can calculate actual total filling quantity in the day; the hydrogen purchase data processing and analysis module can calculate actual hydrogen storage bottle residual quantity in the day according to the hydrogen storage bottle residual quantity data sent by the hydrogen storage bottle data acquisition module; and the hydrogen purchase data processing and analysis module can calculate next-day hydrogen purchase quantity according to the actual total filling quantity in the day and the actual hydrogen storage bottle residual quantity in the day. The application can quickly and accurately calculate next-day hydrogen purchase quantity of a hydrogen filling station.

Description

Technical Field

[0001] This invention relates to the field of hydrogen refueling station technology, specifically to a system and method for calculating the amount of hydrogen purchased the following day at a hydrogen filling station. Background Technology

[0002] Large-scale hydrogen filling stations primarily supply hydrogen to other hydrogen-consuming enterprises. These stations are equipped with filling columns; during filling, the columns transfer hydrogen from the station's storage cylinders to long-tube trailers, which then transport the hydrogen to the hydrogen-consuming enterprises.

[0003] Currently, the calculation of the next day's hydrogen purchase volume at hydrogen filling stations is done manually. Specifically, workers record the filling volume of each long-tube trailer by reading its meter, then manually tally the total filling volume for the day, check the remaining hydrogen in the storage tanks, and subtract the remaining volume from the total filling volume to obtain the next day's hydrogen purchase volume. The drawback of this current method is that, during filling, workers rely on the long-tube trailer's meter for measurement. Because the meter is positioned high, factors such as viewing angle can affect the reading, leading to errors in the actual filling volume. This low accuracy results in inaccurate data for the next day's hydrogen purchase volume. If the next day's hydrogen purchase volume is too low, the station's hydrogen reserves may not meet the next day's demand from hydrogen-using enterprises, thus affecting the station's normal operation. Summary of the Invention

[0004] The first objective of this invention is to provide a hydrogen purchase calculation system for hydrogen filling stations that is easy to use and can quickly and accurately calculate the amount of hydrogen purchased the next day.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a hydrogen purchase amount calculation system for a hydrogen filling station the next day, comprising: a filling column data acquisition module, a hydrogen storage cylinder data acquisition module, and a hydrogen purchase data processing and analysis module;

[0006] The filling column data acquisition module collects each filling data of the hydrogen filling column in real time and sends each filling data to the hydrogen purchase data processing and analysis module. The filling data includes: vehicle cylinder hydrogen pressure, vehicle cylinder hydrogen temperature, and vehicle cylinder hydrogen density.

[0007] The hydrogen storage cylinder data acquisition module collects the daily remaining volume data of the hydrogen storage cylinder, which includes: the density of the hydrogen storage cylinder under standard conditions, the temperature of the hydrogen storage cylinder under standard conditions, the pressure of the hydrogen storage cylinder under standard conditions, the density of the hydrogen storage cylinder under working conditions, the pressure of the hydrogen storage cylinder under working conditions, and the temperature of the hydrogen storage cylinder under working conditions.

[0008] The hydrogen purchase data processing and analysis module can calculate the actual filling volume of each transaction based on each filling data sent by the filling column data acquisition module, and calculate the total actual filling volume for the day.

[0009] The hydrogen purchase data processing and analysis module can calculate the actual remaining amount of the hydrogen storage cylinder on the same day based on the remaining amount data of the hydrogen storage cylinder sent by the hydrogen storage cylinder data acquisition module.

[0010] The hydrogen purchase data processing and analysis module can calculate the amount of hydrogen to be purchased the next day based on the actual total filling volume and the actual remaining amount of hydrogen storage cylinders on the same day.

[0011] The second objective of this invention is to provide a convenient and quick method for calculating the amount of hydrogen purchased by a hydrogen filling station the following day.

[0012] To achieve the above objectives, the present invention adopts the following technical solution: a method for calculating the amount of hydrogen purchased by a hydrogen filling station the following day, the specific steps of which are as follows:

[0013] S1: The hydrogen purchase data processing and analysis module calculates the actual filling volume for each item based on the filling data sent by the filling column data acquisition module.

[0014] The specific formula for calculating the actual filling volume for each transaction is as follows:

[0015] ;

[0016] Where M is the amount of hydrogen filled. Where is the density of hydrogen in the vehicle's gas cylinder, and V is the volume of the vehicle's gas cylinder.

[0017] in, ;

[0018] Where M is the molar mass of a hydrogen molecule, in grams per mole (g / mol). R is the hydrogen pressure in the vehicle's gas cylinder, measured in megapascals (MPa); T is the hydrogen constant; T is the hydrogen temperature in the vehicle's gas cylinder, measured in Kelvin (K); and Z is the hydrogen compressibility factor.

[0019] in, ;

[0020] in, , where T is the temperature of hydrogen in the vehicle's gas cylinder, in Kelvin (K). This refers to the hydrogen pressure in the vehicle's gas cylinder, measured in megapascals (MPa).

[0021] Among them, coefficient for:

[0022]

[0023] S2: The hydrogen purchase data processing and analysis module adds up all the actual filling quantities for the day to obtain the total actual filling quantity for the day;

[0024] S3: The hydrogen purchase data processing and analysis module calculates the actual remaining amount of the hydrogen storage cylinder for the day based on the remaining amount data of the hydrogen storage cylinder sent by the hydrogen storage cylinder data acquisition module.

[0025] The specific formula for calculating the actual remaining amount of hydrogen storage cylinders on a given day is as follows:

[0026] ;

[0027] in, This represents the current actual remaining amount in the hydrogen storage cylinder. The density of the hydrogen storage cylinder under working conditions, where V is the volume of the hydrogen storage cylinder.

[0028] in, ;

[0029] in, The density of the hydrogen storage cylinder under standard conditions. =0.0899 kg / m³, The temperature of the hydrogen storage cylinder under standard conditions. =273.15K, The pressure of the hydrogen storage cylinder under standard conditions. =0.1013MPa, The temperature of the hydrogen storage tank during operation. The pressure of the hydrogen storage cylinder under operating conditions;

[0030] S4: Subtract the actual remaining amount of hydrogen storage cylinders obtained from S3 from the actual total amount filled on the day obtained from S2 to obtain the amount of hydrogen purchased by the hydrogen filling station on the next day.

[0031] Through the implementation of the above technical solution, the beneficial effects of the present invention are: it is convenient to use, can quickly and accurately obtain the amount of hydrogen to be purchased by the hydrogen filling station the next day, reduces the time cost of manual calculation, so that staff can quickly and accurately formulate and adjust the hydrogen purchase plan, ensure that the hydrogen storage capacity of the hydrogen filling station can meet the hydrogen demand of the hydrogen-using enterprises the next day, and ensure the normal and orderly operation of the hydrogen filling station. Attached Figure Description

[0032] Figure 1 This is a schematic diagram illustrating the working principle of a hydrogen purchase volume calculation system for a hydrogen filling station as described in this invention. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0034] like Figure 1 As shown, the hydrogen purchase amount calculation system for a hydrogen filling station for the next day includes: a filling column data acquisition module 1, a hydrogen storage cylinder data acquisition module 2, and a hydrogen purchase data processing and analysis module 3.

[0035] The filling column data acquisition module 1 collects the daily filling data of the hydrogen filling column 4 in real time and sends each filling data to the hydrogen purchase data processing and analysis module 3. The filling data includes: hydrogen pressure of vehicle cylinder 6, hydrogen temperature of vehicle cylinder 6, and hydrogen density of vehicle cylinder 6.

[0036] The hydrogen storage cylinder data acquisition module 2 acquires the daily remaining hydrogen storage cylinder data of the hydrogen storage cylinder 5. The daily remaining hydrogen storage cylinder data includes: the density of the hydrogen storage cylinder under standard conditions, the temperature of the hydrogen storage cylinder under standard conditions, the pressure of the hydrogen storage cylinder under standard conditions, the density of the hydrogen storage cylinder under working conditions, the pressure of the hydrogen storage cylinder under working conditions, and the temperature of the hydrogen storage cylinder under working conditions.

[0037] The hydrogen purchase data processing and analysis module 3 can calculate the actual filling amount of each transaction based on each filling data sent by the filling column data acquisition module 1, and calculate the total actual filling amount for the day.

[0038] The hydrogen purchase data processing and analysis module 3 can calculate the actual remaining amount of the hydrogen storage bottle on the day based on the remaining amount data of the hydrogen storage bottle sent by the hydrogen storage bottle data acquisition module 2.

[0039] The hydrogen purchase data processing and analysis module 3 can calculate the amount of hydrogen to be purchased the next day based on the actual total filling volume and the actual remaining amount of hydrogen storage cylinders on the same day.

[0040] A method for calculating the amount of hydrogen purchased by a hydrogen filling station the following day, with the specific steps as follows:

[0041] S1: The hydrogen purchase data processing and analysis module 3 calculates the actual filling amount for each item based on each filling data item sent by the filling column data acquisition module 1.

[0042] The specific formula for calculating the actual filling volume for each transaction is as follows:

[0043] ;

[0044] Where M is the amount of hydrogen filled. Where is the density of hydrogen in the vehicle's gas cylinder, and V is the volume of the vehicle's gas cylinder.

[0045] in, ;

[0046] Where M is the molar mass of a hydrogen molecule, in grams per mole (g / mol). R is the hydrogen pressure in the vehicle's gas cylinder, measured in megapascals (MPa); T is the hydrogen constant; T is the hydrogen temperature in the vehicle's gas cylinder, measured in Kelvin (K); and Z is the hydrogen compressibility factor.

[0047] in, ;

[0048] in, , where T is the temperature of hydrogen in the vehicle's gas cylinder, in Kelvin (K). This refers to the hydrogen pressure in the vehicle's gas cylinder, measured in megapascals (MPa).

[0049] Among them, coefficient for:

[0050]

[0051] S2: The hydrogen purchase data processing and analysis module 3 adds up all the actual filling quantities for the day to obtain the total actual filling quantity for the day;

[0052] S3: The hydrogen purchase data processing and analysis module 3 calculates the actual remaining amount of the hydrogen storage cylinder on the same day based on the remaining amount data of the hydrogen storage cylinder sent by the hydrogen storage cylinder data acquisition module 2.

[0053] The specific formula for calculating the actual remaining amount of hydrogen storage cylinders on a given day is as follows:

[0054] ;

[0055] in, This represents the current actual remaining amount in the hydrogen storage cylinder. The density of the hydrogen storage cylinder under working conditions, where V is the volume of the hydrogen storage cylinder.

[0056] in, ;

[0057] in, The density of the hydrogen storage cylinder under standard conditions. =0.0899 kg / m³, The temperature of the hydrogen storage cylinder under standard conditions. =273.15K, The pressure of the hydrogen storage cylinder under standard conditions. =0.1013MPa, The temperature of the hydrogen storage tank during operation. The pressure of the hydrogen storage cylinder under operating conditions;

[0058] S4: Subtract the actual remaining amount of hydrogen storage cylinders obtained from S3 from the actual total amount filled on the day obtained from S2 to obtain the amount of hydrogen purchased by the hydrogen filling station on the next day.

[0059] The advantages of this invention are: it is easy to use and can quickly and accurately obtain the amount of hydrogen to be purchased by the hydrogen filling station the next day, reducing the time cost of manual calculation. This allows staff to quickly and accurately formulate and adjust the hydrogen purchase plan, ensuring that the hydrogen storage capacity of the hydrogen filling station can meet the hydrogen demand of hydrogen-using enterprises the next day, and guaranteeing the normal and orderly operation of the hydrogen filling station.

[0060] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any modifications or equivalent changes made based on the technical essence of the present invention shall still fall within the scope of protection claimed by the present invention.

Claims

1. A method for calculating the amount of hydrogen purchased the following day at a hydrogen filling station, characterized in that: A system for calculating the amount of hydrogen purchased the next day at a hydrogen filling station is adopted. The system includes: a filling column data acquisition module, a hydrogen storage cylinder data acquisition module, and a hydrogen purchase data processing and analysis module. The filling column data acquisition module collects each filling data of the hydrogen filling column in real time and sends each filling data to the hydrogen purchase data processing and analysis module. The filling data includes: vehicle cylinder hydrogen pressure, vehicle cylinder hydrogen temperature, and vehicle cylinder hydrogen density. The hydrogen storage cylinder data acquisition module collects the daily remaining volume data of the hydrogen storage cylinder, which includes: the density of the hydrogen storage cylinder under standard conditions, the temperature of the hydrogen storage cylinder under standard conditions, the pressure of the hydrogen storage cylinder under standard conditions, the density of the hydrogen storage cylinder under working conditions, the pressure of the hydrogen storage cylinder under working conditions, and the temperature of the hydrogen storage cylinder under working conditions. The hydrogen purchase data processing and analysis module can calculate the actual filling volume of each transaction based on each filling data sent by the filling column data acquisition module, and calculate the total actual filling volume for the day. The hydrogen purchase data processing and analysis module can calculate the actual remaining amount of the hydrogen storage cylinder on the same day based on the remaining amount data of the hydrogen storage cylinder sent by the hydrogen storage cylinder data acquisition module. The hydrogen purchase data processing and analysis module can calculate the amount of hydrogen to be purchased the next day based on the actual total filling volume and the actual remaining amount of hydrogen storage cylinders on the same day. The specific steps of this calculation method are as follows: S1: The hydrogen purchase data processing and analysis module calculates the actual filling volume for each item based on the filling data sent by the filling column data acquisition module. The specific formula for calculating the actual filling volume for each transaction is as follows: ； Where M is the amount of hydrogen filled. Where is the density of hydrogen in the vehicle's gas cylinder, and V is the volume of the vehicle's gas cylinder. in, ; Where M is the molar mass of a hydrogen molecule, in grams per mole (g / mol). R is the hydrogen pressure in the vehicle's gas cylinder, measured in megapascals (MPa); T is the hydrogen constant; T is the hydrogen temperature in the vehicle's gas cylinder, measured in Kelvin (K); and Z is the hydrogen compressibility factor. in, ; in, , where T is the temperature of hydrogen in the vehicle's gas cylinder, in Kelvin (K). This refers to the hydrogen pressure in the vehicle's gas cylinder, measured in megapascals (MPa). Among them, coefficient for: ； S2: The hydrogen purchase data processing and analysis module adds up all the actual filling quantities for the day to obtain the total actual filling quantity for the day; S3: The hydrogen purchase data processing and analysis module calculates the actual remaining amount of the hydrogen storage cylinder for the day based on the remaining amount data of the hydrogen storage cylinder sent by the hydrogen storage cylinder data acquisition module. The specific formula for calculating the actual remaining amount of hydrogen storage cylinders on a given day is as follows: ； in, This represents the current actual remaining amount in the hydrogen storage cylinder. The density of the hydrogen storage cylinder under working conditions, where V is the volume of the hydrogen storage cylinder. in, ； in, The density of the hydrogen storage cylinder under standard conditions. =0.0899 kg / m³, The temperature of the hydrogen storage cylinder under standard conditions. =273.15K, The pressure of the hydrogen storage cylinder under standard conditions. =0.1013MPa, The temperature of the hydrogen storage tank during operation. The pressure of the hydrogen storage cylinder under operating conditions; S4: Subtract the actual remaining amount of hydrogen storage cylinders obtained from S3 from the actual total amount filled on the day obtained from S2 to obtain the amount of hydrogen purchased by the hydrogen filling station on the next day.

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