阅读说明：本技术 加氢站氢气综合管理方法及系统 (Hydrogen comprehensive management method and system for hydrogen station ) 是由 方沛军 宣锋 张健 姜方 伍远安 曹俊 于 2021-08-13 设计创作，主要内容包括：本发明涉及加氢站管理领域,提供一种加氢站氢气综合管理方法及系统,包括：S1：获得当前TT车的氢气卸气量m-(i)；S2：计算获得当日氢气卸气量M-(0)；S3：计算获得储氢瓶组的实时存量M-(1)；S4：获取加氢机的当前氢气加注量M-(2),通过所述当前TT车的氢气卸气量m-(i)、所述加氢机的当前氢气加注量M-(2)和所述储氢瓶组的实时存量M-(1),计算获得站内氢气耗损比例S；S5：根据所述当日氢气卸气量M-(0)和所述站内氢气耗损比例S判断加氢站的工作状态。本发明可以精确计算出加氢站的当日氢气卸气量、储氢瓶组的实时存量和站内氢气耗损比例,以此判断加氢站的工作状态,提高加氢站的安全性、可靠性和管理效率。(The invention relates to the field of management of hydrogenation stations, and provides a comprehensive management method and a comprehensive management system for hydrogen of a hydrogenation station, which comprise the following steps: s1: obtaining the hydrogen gas discharge quantity m of the current TT vehicle i (ii) a S2: calculating to obtain the gas discharge quantity M of the hydrogen on the day 0 (ii) a S3: calculating to obtain the real-time stock M of the hydrogen storage cylinder group 1 (ii) a S4: obtaining the current hydrogen filling quantity M of the hydrogenation machine 2 The hydrogen gas discharge quantity m of the current TT vehicle i The current hydrogen filling amount M of the hydrogenation machine 2 And real-time inventory M of said hydrogen storage cylinder group 1 Calculating to obtain the hydrogen consumption ratio S in the station; s5: according to the hydrogen gas discharge quantity M on the same day 0 And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station. The invention can accurately calculate the daily hydrogen gas discharge amount of the hydrogen station, the real-time storage of the hydrogen storage cylinder group and the hydrogen consumption in the stationAnd the proportion is reduced, so that the working state of the hydrogen station is judged, and the safety, reliability and management efficiency of the hydrogen station are improved.)

1. A hydrogen comprehensive management method for a hydrogen refueling station is characterized by comprising the following steps:

s1: acquiring initial hydrogen density and final hydrogen density of the current TT vehicle, and calculating to obtain the hydrogen gas discharge amount m of the current TT vehicle according to the initial hydrogen density and the final hydrogen density_i；

S2: acquiring the number n of TT vehicles of a hydrogenation station on the same day, and discharging the hydrogen gas m through the current TT vehicles_iAnd the number n of TT vehicles on the current day of the hydrogenation station, and calculating to obtain the hydrogen gas discharge amount M on the current day₀；

S3: acquiring the real-time hydrogen density of the hydrogen storage cylinder group, and calculating to obtain the real-time stock M of the hydrogen storage cylinder group according to the real-time hydrogen density of the hydrogen storage cylinder group₁；

S4: obtaining the current hydrogen filling quantity M of the hydrogenation machine₂The hydrogen gas discharge quantity m of the current TT vehicle_iThe current hydrogen filling amount M of the hydrogenation machine₂And real-time inventory M of said hydrogen storage cylinder group₁Calculating to obtain the hydrogen consumption ratio S in the station;

s5: according to the hydrogen gas discharge quantity M on the same day₀And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station.

2. The hydrogen station hydrogen integrated management method according to claim 1, wherein step S1 specifically comprises:

s11: acquiring the number i of the current TT vehicle, wherein the number i is a positive integer larger than 0; obtaining the initial hydrogen density rho of the current TT vehicle_i1And the volume V of the vehicle-mounted hydrogen storage tank_iAnd acquiring the final hydrogen density rho of the current TT vehicle after the gas unloading is finished_i2；

S12: calculating to obtain the hydrogen gas discharge amount m of the current TT vehicle_iThe calculation formula is as follows:

m_i＝ρ_i1*V_i-ρ_i2*V_i。

3. the comprehensive management method for hydrogen in hydrogen refueling station according to claim 2, wherein the hydrogen gas unloading amount M on the same day is obtained in step S2₀The calculation formula of (2) is as follows:

wherein m is_aIndicating that the gas discharge amount is not used up in the station on the previous day.

4. The hydrogen station hydrogen integrated management method according to claim 1, wherein step S3 specifically comprises:

s31: obtaining the real-time hydrogen density rho of the high-pressure hydrogen storage bottles in the hydrogen storage bottle group_hReal-time hydrogen density rho of medium-pressure hydrogen storage bottle_mAnd real-time hydrogen density rho of low-pressure hydrogen storage bottle_l；

S32: according to the real-time hydrogen density rho of the high-pressure hydrogen storage bottle_hAnd the real-time hydrogen density rho of the medium-pressure hydrogen storage bottle_mAnd the real-time hydrogen density rho of the low-pressure hydrogen storage bottle_lCalculating to obtain the real-time stock M of the hydrogen storage cylinder group₁The calculation formula is as follows:

M₁＝ρ_h*V_h+ρ_m*V_m+ρ_l*V_l

wherein, V_hDenotes the volume, V, of the high-pressure hydrogen storage cylinder_mDenotes the volume, V, of a medium-pressure hydrogen storage cylinder_lRepresenting the volume of the low pressure hydrogen storage cylinder.

5. The integrated management method for hydrogen in hydrogen refueling station as claimed in claim 1, wherein the hydrogen consumption ratio S in the hydrogen refueling station in step S4 is calculated by the following formula:

6. the hydrogen station hydrogen integrated management method according to claim 1, wherein step S5 specifically comprises:

s51: setting the hydrogen gas discharge quantity M on the same day₀And a maximum value S of the hydrogen consumption ratio S in the station_h；

S52: detecting the gas discharge quantity M of the hydrogen gas on the same day in real time₀And a value of the hydrogen consumption ratio S in the station; if the hydrogen gas discharge quantity M on the same day₀Within a preset range, and the consumption ratio S of hydrogen in the station is less than or equal to S_hJudging that the working state of the hydrogen station is normal; otherwise, judging the working state of the hydrogen station to be abnormal.

7. A hydrogen integrated management system of a hydrogen refueling station, which is used for realizing the hydrogen integrated management method of the hydrogen refueling station as claimed in any one of claims 1 to 6, and is characterized by comprising the following steps: the system comprises TT vehicles, a data receiving unit of a unloading area of a hydrogenation station, a hydrogen management unit, a hydrogenation machine, a hydrogen storage cylinder group and a station control unit;

the hydrogen management unit is electrically connected with the hydrogenation machine, the hydrogen storage cylinder group, the station control unit and the data receiving unit of the unloading area of the hydrogenation station, and the data receiving unit of the unloading area of the hydrogenation station is electrically connected with the TT vehicle;

the unloading area data receiving unit of the hydrogen station is used for calculating and obtaining the hydrogen unloading amount m of the current TT vehicle_iAnd the amount M of hydrogen discharged on the same day₀；

The hydrogenation machine is used for obtaining the current hydrogen filling quantity M of the hydrogenation machine₂；

The hydrogen storage cylinder group is used for acquiring the real-time stock M of the hydrogen storage cylinder group₁；

The hydrogen management unit is used for calculating and obtaining the hydrogen consumption ratio S in the station;

the station control unit is used for unloading the hydrogen gas quantity M according to the current day₀And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station.

8. The hydrogen comprehensive management system of the hydrogen station as claimed in claim 7, wherein a hydrogen pressure sensor and a hydrogen temperature sensor are arranged inside the TT vehicle and the hydrogen storage cylinder group;

the hydrogen pressure sensor is used for acquiring hydrogen pressure, and the hydrogen temperature sensor is used for acquiring hydrogen temperature;

and finding the corresponding hydrogen density in a data table according to the hydrogen pressure and the hydrogen temperature.

Technical Field

The invention relates to the field of management of a hydrogen refueling station, in particular to a hydrogen comprehensive management method and system for the hydrogen refueling station.

Background

In the existing hydrogen adding station, the management of the hydrogen consumption generally depends on manual recording and statistics, and usually only can depend on a flow meter in a hydrogen adding device as a single source of data, so that the hydrogen quality added from a hydrogen adding machine in the hydrogen adding station can only be obtained, but for a gas storage cylinder group in the hydrogen adding station, the hydrogen in a TT vehicle cannot be dynamically and real-timely displayed, so that the production scheduling of the hydrogen adding station is not facilitated, the hydrogen storage amount in the hydrogen adding station can only depend on the pressure in the cylinder group for judgment, and the hydrogen pressure in the cylinder group can be changed along with the change of the environmental temperature at that time, so that the residual hydrogen quality in the cylinder group cannot be accurately judged. The hydrogen storage and consumption in the whole hydrogen station do not have a dynamic indication, and the working state of the hydrogen station in the operation process cannot be accurately judged.

The above is only for the purpose of assisting understanding of the technical aspects of the present invention, and does not represent an admission that the above is prior art.

Disclosure of Invention

The invention mainly aims to solve the technical problem that in the prior art, the hydrogen storage and consumption in the hydrogen station do not have a dynamic indication and the working state of the hydrogen station in the operation process cannot be accurately judged.

In order to achieve the above object, the present invention provides a hydrogen comprehensive management method for a hydrogen refueling station, comprising:

s1: acquiring initial hydrogen density and final hydrogen density of the current TT vehicle, and calculating to obtain the hydrogen gas discharge amount m of the current TT vehicle according to the initial hydrogen density and the final hydrogen density_i；

S2: acquiring the number n of TT vehicles of a hydrogenation station on the same day, and discharging the hydrogen gas m through the current TT vehicles_iAnd the number of TT cars of the hydrogenation station on the dayMeasuring n, calculating to obtain the hydrogen gas discharge quantity M on the day₀；

S3: acquiring the real-time hydrogen density of the hydrogen storage cylinder group, and calculating to obtain the real-time stock M of the hydrogen storage cylinder group according to the real-time hydrogen density of the hydrogen storage cylinder group₁；

S4: obtaining the current hydrogen filling quantity M of the hydrogenation machine₂The hydrogen gas discharge quantity m of the current TT vehicle_iThe current hydrogen filling amount M of the hydrogenation machine₂And real-time inventory M of said hydrogen storage cylinder group₁Calculating to obtain the hydrogen consumption ratio S in the station;

s5: according to the hydrogen gas discharge quantity M on the same day₀And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station.

Preferably, step S1 is specifically:

s11: acquiring the number i of the current TT vehicle, wherein the number i is a positive integer larger than 0; obtaining the initial hydrogen density rho of the current TT vehicle_i1And the volume V of the vehicle-mounted hydrogen storage tank_iAnd acquiring the final hydrogen density rho of the current TT vehicle after the gas unloading is finished_i2；

S12: calculating to obtain the hydrogen gas discharge amount m of the current TT vehicle_iThe calculation formula is as follows:

m_i＝ρ_i1*V_i-ρ_i2*V_i。

preferably, the hydrogen gas unloading amount M on the day is obtained in step S2₀The calculation formula of (2) is as follows:

wherein m is_aIndicating that the gas discharge amount is not used up in the station on the previous day.

Preferably, step S3 is specifically:

s31: obtaining the real-time hydrogen density rho of the high-pressure hydrogen storage bottles in the hydrogen storage bottle group_hReal-time hydrogen density rho of medium-pressure hydrogen storage bottle_mAnd real-time hydrogen density rho of low-pressure hydrogen storage bottle_l；

S32: according to said high pressureReal-time hydrogen density rho of hydrogen storage bottle_hAnd the real-time hydrogen density rho of the medium-pressure hydrogen storage bottle_mAnd the real-time hydrogen density rho of the low-pressure hydrogen storage bottle_lCalculating to obtain the real-time stock M of the hydrogen storage cylinder group₁The calculation formula is as follows:

M₁＝ρ_h*V_h+ρ_m*V_m+ρ_l*V_l

wherein, V_hDenotes the volume, V, of the high-pressure hydrogen storage cylinder_mDenotes the volume, V, of a medium-pressure hydrogen storage cylinder_lRepresenting the volume of the low pressure hydrogen storage cylinder.

Preferably, the calculation formula of the hydrogen consumption ratio S in the station in step S4 is:

preferably, step S5 is specifically:

s51: setting the hydrogen gas discharge quantity M on the same day₀And a maximum value S of the hydrogen consumption ratio S in the station_h；

S52: detecting the gas discharge quantity M of the hydrogen gas on the same day in real time₀And a value of the hydrogen consumption ratio S in the station; if the hydrogen gas discharge quantity M on the same day₀Within a preset range, and the consumption ratio S of hydrogen in the station is less than or equal to S_hJudging that the working state of the hydrogen station is normal; otherwise, judging the working state of the hydrogen station to be abnormal.

A hydrogen comprehensive management system of a hydrogen station is used for realizing the hydrogen comprehensive management method of the hydrogen station, and comprises the following steps: the system comprises TT vehicles, a data receiving unit of a unloading area of a hydrogenation station, a hydrogen management unit, a hydrogenation machine, a hydrogen storage cylinder group and a station control unit;

the hydrogen management unit is electrically connected with the hydrogenation machine, the hydrogen storage cylinder group, the station control unit and the data receiving unit of the unloading area of the hydrogenation station, and the data receiving unit of the unloading area of the hydrogenation station is electrically connected with the TT vehicle;

the unloading area data receiving unit of the hydrogen filling station is used for calculatingObtaining the hydrogen gas discharge quantity m of the current TT vehicle_iAnd the amount M of hydrogen discharged on the same day₀；

The hydrogenation machine is used for obtaining the current hydrogen filling quantity M of the hydrogenation machine₂；

The hydrogen storage cylinder group is used for acquiring the real-time stock M of the hydrogen storage cylinder group₁；

The hydrogen management unit is used for calculating and obtaining the hydrogen consumption ratio S in the station;

the station control unit is used for unloading the hydrogen gas quantity M according to the current day₀And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station.

Preferably, a hydrogen pressure sensor and a hydrogen temperature sensor are arranged inside the TT vehicle and the hydrogen storage cylinder group;

the hydrogen pressure sensor is used for acquiring hydrogen pressure, and the hydrogen temperature sensor is used for acquiring hydrogen temperature;

and finding the corresponding hydrogen density in a data table according to the hydrogen pressure and the hydrogen temperature.

The invention has the following beneficial effects:

the daily hydrogen gas discharge amount of the hydrogen station, the real-time storage amount of the hydrogen storage cylinder group and the hydrogen consumption ratio in the station can be accurately calculated, so that the working state of the hydrogen station is judged, and the safety, the reliability and the management efficiency of the hydrogen station are improved.

Drawings

FIG. 1 is a flow chart of a method according to an embodiment of the present invention;

FIG. 2 is a system block diagram according to an embodiment of the present invention;

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, the invention provides a hydrogen comprehensive management method for a hydrogen refueling station, comprising the following steps:

s1: obtaining initial hydrogen of current TT vehicleGas density and final hydrogen density, and calculating to obtain the hydrogen gas discharge amount m of the current TT vehicle according to the initial hydrogen density and the final hydrogen density_i；

S2: acquiring the number n of TT vehicles of a hydrogenation station on the same day, and discharging the hydrogen gas m through the current TT vehicles_iAnd the number n of TT vehicles on the current day of the hydrogenation station, and calculating to obtain the hydrogen gas discharge amount M on the current day₀；

S3: acquiring the real-time hydrogen density of the hydrogen storage cylinder group, and calculating to obtain the real-time stock M of the hydrogen storage cylinder group according to the real-time hydrogen density of the hydrogen storage cylinder group₁；

S4: obtaining the current hydrogen filling quantity M of the hydrogenation machine₂The hydrogen gas discharge quantity m of the current TT vehicle_iThe current hydrogen filling amount M of the hydrogenation machine₂And real-time inventory M of said hydrogen storage cylinder group₁Calculating to obtain the hydrogen consumption ratio S in the station;

s5: according to the hydrogen gas discharge quantity M on the same day₀And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station.

In this embodiment, step S1 specifically includes:

s11: acquiring the number i of the current TT vehicle, wherein the number i is a positive integer larger than 0; obtaining the initial hydrogen density rho of the current TT vehicle_i1And the volume V of the vehicle-mounted hydrogen storage tank_iAnd acquiring the final hydrogen density rho of the current TT vehicle after the gas unloading is finished_i2；

S12: calculating to obtain the hydrogen gas discharge amount m of the current TT vehicle_iThe calculation formula is as follows:

m_i＝ρ_i1*V_i-ρ_i2*V_i。

in this embodiment, the hydrogen gas unloading amount M on the same day is obtained in step S2₀The calculation formula of (2) is as follows:

wherein m is_aIndicating that the gas discharge amount is not used up in the station on the previous day.

In this embodiment, step S3 specifically includes:

s31: obtaining the real-time hydrogen density rho of the high-pressure hydrogen storage bottles in the hydrogen storage bottle group_hReal-time hydrogen density rho of medium-pressure hydrogen storage bottle_mAnd real-time hydrogen density rho of low-pressure hydrogen storage bottle_l；

S32: according to the real-time hydrogen density rho of the high-pressure hydrogen storage bottle_hAnd the real-time hydrogen density rho of the medium-pressure hydrogen storage bottle_mAnd the real-time hydrogen density rho of the low-pressure hydrogen storage bottle_lCalculating to obtain the real-time stock M of the hydrogen storage cylinder group₁The calculation formula is as follows:

M₁＝ρ_h*V_h+ρ_m*V_m+ρ_l*V_l

wherein, V_hDenotes the volume, V, of the high-pressure hydrogen storage cylinder_mDenotes the volume, V, of a medium-pressure hydrogen storage cylinder_lRepresenting the volume of the low pressure hydrogen storage cylinder.

In this embodiment, the calculation formula of the hydrogen consumption ratio S in the station in step S4 is as follows:

wherein, the value of S is less than 1, and the real-time stock M of the hydrogen storage cylinder group₁And the current hydrogen filling quantity M of the hydrogenation machine₂The smaller the value of (A), the closer the value of S is to 1.

In this embodiment, step S5 specifically includes:

s51: setting the hydrogen gas discharge quantity M on the same day₀And a maximum value S of the hydrogen consumption ratio S in the station_h；

S52: detecting the gas discharge quantity M of the hydrogen gas on the same day in real time₀And a value of the hydrogen consumption ratio S in the station; if the hydrogen gas discharge quantity M on the same day₀Within a preset range, and the consumption ratio S of hydrogen in the station is less than or equal to S_hJudging that the working state of the hydrogen station is normal; otherwise, judging the working state of the hydrogen station to be abnormal;

in a specific implementation, hydrogen is generated if the day isGas discharging quantity M₀If the hydrogen is not in the preset range, the problem that hydrogen is wasted or insufficient in use exists in the hydrogen station needs to be detected; if the value of the hydrogen consumption ratio S in the station is larger than the maximum value S_hAnd if the hydrogen consumption is too large, the related equipment needs to be overhauled.

Referring to fig. 2, the present invention provides a hydrogen integrated management system for a hydrogen refueling station, which is used for implementing the above hydrogen integrated management method for the hydrogen refueling station, and includes: the system comprises TT vehicles, a data receiving unit of a unloading area of a hydrogenation station, a hydrogen management unit, a hydrogenation machine, a hydrogen storage cylinder group and a station control unit;

the hydrogen management unit is electrically connected with the hydrogenation machine, the hydrogen storage cylinder group, the station control unit and the data receiving unit of the unloading area of the hydrogenation station, and the data receiving unit of the unloading area of the hydrogenation station is electrically connected with the TT vehicle;

the unloading area data receiving unit of the hydrogen station is used for calculating and obtaining the hydrogen unloading amount m of the current TT vehicle_iAnd the amount M of hydrogen discharged on the same day₀；

The hydrogenation machine is used for obtaining the current hydrogen filling quantity M of the hydrogenation machine₂；

The hydrogen storage cylinder group is used for acquiring the real-time stock M of the hydrogen storage cylinder group₁；

The hydrogen management unit is used for calculating and obtaining the hydrogen consumption ratio S in the station;

the station control unit is used for unloading the hydrogen gas quantity M according to the current day₀And judging the working state of the hydrogen filling station according to the hydrogen consumption ratio S in the station.

In this embodiment, a hydrogen pressure sensor and a hydrogen temperature sensor are arranged inside the TT vehicle and the hydrogen storage cylinder group; hydrogen pressure sensors and hydrogen temperature sensors are arranged inside the high-pressure hydrogen storage bottle, the medium-pressure hydrogen storage bottle and the low-pressure hydrogen storage bottle in the hydrogen storage bottle group;

the hydrogen pressure sensor is used for acquiring hydrogen pressure, and the hydrogen temperature sensor is used for acquiring hydrogen temperature;

finding a corresponding hydrogen density in a data table according to the hydrogen pressure and the hydrogen temperature; the hydrogen management unit is connected with a large data center through a network, data in the data table are updated every day, and accuracy of obtaining the hydrogen density is guaranteed.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or system that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third and the like do not denote any order, but rather the words first, second and the like may be interpreted as indicating any order.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.