CN110939863A - Hydrogenation testing device - Google Patents

Hydrogenation testing device Download PDF

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Publication number
CN110939863A
CN110939863A CN201811108939.4A CN201811108939A CN110939863A CN 110939863 A CN110939863 A CN 110939863A CN 201811108939 A CN201811108939 A CN 201811108939A CN 110939863 A CN110939863 A CN 110939863A
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China
Prior art keywords
hydrogen
hydrogenation
vehicle
storage bottle
hydrogen storage
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Pending
Application number
CN201811108939.4A
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Chinese (zh)
Inventor
杨康
郭强
何广利
赵月晶
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China Energy Investment Corp Ltd
National Institute of Clean and Low Carbon Energy
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China Energy Investment Corp Ltd
National Institute of Clean and Low Carbon Energy
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Priority to CN201811108939.4A priority Critical patent/CN110939863A/en
Publication of CN110939863A publication Critical patent/CN110939863A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/023—Special adaptations of indicating, measuring, or monitoring equipment having the mass as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/025—Special adaptations of indicating, measuring, or monitoring equipment having the pressure as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C13/00—Details of vessels or of the filling or discharging of vessels
    • F17C13/02—Special adaptations of indicating, measuring, or monitoring equipment
    • F17C13/026—Special adaptations of indicating, measuring, or monitoring equipment having the temperature as the parameter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/012—Hydrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/032—Control means using computers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/03—Control means
    • F17C2250/036—Control means using alarms
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0421—Mass or weight of the content of the vessel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/043—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2250/00—Accessories; Control means; Indicating, measuring or monitoring of parameters
    • F17C2250/04—Indicating or measuring of parameters as input values
    • F17C2250/0404—Parameters indicated or measured
    • F17C2250/0439—Temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2270/00—Applications
    • F17C2270/01—Applications for fluid transport or storage
    • F17C2270/0165—Applications for fluid transport or storage on the road
    • F17C2270/0184—Fuel cells
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/32—Hydrogen storage

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

The invention provides a hydrogenation testing device, and belongs to the technical field of hydrogenation. The hydrogenation testing device comprises a movable platform, and a weight testing device, a sensing assembly and a control device which are arranged on the movable platform; the weight testing device is installed in cooperation with the vehicle-mounted hydrogen storage bottle and used for testing the quality of hydrogen for hydrogenation to the vehicle-mounted hydrogen storage bottle; the sensing assembly is installed in cooperation with the vehicle-mounted hydrogen storage bottle and is used for measuring the temperature value and the pressure value of the vehicle-mounted hydrogen storage bottle; and the control device is electrically connected with the weight testing device and the sensing assembly and is used for judging the hydrogenation performance of the hydrogenation of the vehicle-mounted hydrogen storage bottle according to the hydrogen quality, the temperature value and the pressure value. The hydrogenation testing device is simple and reliable, can freely move by using the movable platform, improves the testing maneuvering machine, realizes the real-time monitoring of the hydrogenation performance by detecting and processing the hydrogen quality, the hydrogen storage bottle temperature and the hydrogen storage bottle pressure, and is favorable for ensuring the smooth hydrogenation.

Description

Hydrogenation testing device
Technical Field
The invention relates to the technical field of hydrogenation, in particular to a hydrogenation testing device.
Background
Hydrogen energy is considered to be one of the most promising secondary energy sources due to its outstanding advantages of various sources, cleanliness, environmental protection, large-scale storage and transportation, etc. The hydrogen energy fuel cell automobile is one of important application terminals of hydrogen energy. Mass production of hydrogen fuel cell vehicles was proposed around 2015 by a lot of vehicles in the world. At present, hydrogen energy fuel cell vehicles generally adopt hydrogen storage bottles for storing hydrogen (the design pressure of the hydrogen storage bottles is mainly 35MPa and 70 MPa), and a filling control strategy for adding hydrogen to the hydrogen storage bottles by a hydrogen station is one of the key points of domestic and foreign researches at present. However, most of the current schemes at home and abroad focus on optimization of a hydrogen filling control process, but research on a hydrogenation performance test is less, corresponding evaluation standards for the filling performance of a hydrogen station and a hydrogenation machine are not provided at home, and the hydrogen hydrogenation performance is usually judged only by partial parameters obtained in the hydrogen filling control process.
Disclosure of Invention
The embodiment of the invention aims to provide a hydrogenation testing device which is used for judging the hydrogenation performance in a hydrogenation process.
In order to achieve the above object, an embodiment of the present invention provides a hydrogenation testing apparatus, where the hydrogenation testing apparatus includes a mobile platform, and a weight testing apparatus, a sensing assembly, and a control apparatus that are disposed on the mobile platform; the weight testing device is matched with the vehicle-mounted hydrogen storage bottle for mounting and is used for testing the quality of hydrogen for hydrogenating the vehicle-mounted hydrogen storage bottle; the sensing assembly is matched with the vehicle-mounted hydrogen storage bottle for mounting and is used for measuring the temperature value and the pressure value of the vehicle-mounted hydrogen storage bottle; and the control device is electrically connected with the weight testing device and the sensing assembly and is used for judging the hydrogenation performance of hydrogenation on the vehicle-mounted hydrogen storage bottle according to the hydrogen quality, the temperature value and the pressure value.
Optionally, the weight testing apparatus comprises at least two balances, and wherein the at least two balances comprise at least one balance for an on-board hydrogen storage cylinder of 35MPa and at least one balance for an on-board hydrogen storage cylinder of 70 MPa.
Optionally, the sensing assembly includes a temperature sensor and a pressure sensor for respectively measuring a temperature value and a pressure value of the vehicle-mounted hydrogen storage bottle.
Optionally, the control device is a PLC.
Optionally, the hydrogenation testing device further comprises a flow testing device arranged on the mobile platform, wherein the flow testing device is arranged at a hydrogenation inlet of the vehicle-mounted hydrogen storage bottle and is used for measuring hydrogen flow at the hydrogenation inlet; and the control device is also used for calculating the hydrogen rate of the hydrogen supplied to the vehicle-mounted hydrogen storage bottle according to the hydrogen flow, and combining the hydrogen rate with the hydrogen quality, the temperature value and the pressure value to judge the hydrogenation performance of the hydrogen supplied to the vehicle-mounted hydrogen storage bottle.
Optionally, the flow rate testing device is a gas flow meter.
Optionally, the hydrogenation performance includes a rate, accuracy and safety of hydrogenation to the on-vehicle hydrogen storage bottle, and the control device includes: an obtaining module, configured to obtain the hydrogen flow rate from the flow rate testing device, obtain the temperature value and the pressure value from the sensing component, and obtain the hydrogen quality from the weight testing device; the calculation module is used for calculating the hydrogen rate of the hydrogen supplied to the vehicle-mounted hydrogen storage bottle according to the hydrogen flow; and the judging module is used for judging whether the rate of hydrogen addition to the vehicle-mounted hydrogen storage bottle is normal according to the hydrogen rate, judging the accuracy of hydrogen addition to the vehicle-mounted hydrogen storage bottle according to the hydrogen quality, and judging the safety of hydrogen addition to the vehicle-mounted hydrogen storage bottle according to the temperature value and the pressure value.
Optionally, the calculation module is further configured to calculate the hydrogen quality according to the hydrogen flow rate, and/or calculate the hydrogen quality according to the temperature value and the pressure value.
Optionally, the hydrogenation performance further includes repeatability of the hydrogen quality, and the determining module is further configured to determine the repeatability of the hydrogen quality by determining whether the following three are consistent: the mass of hydrogen gas determined by the gravimetric testing device; the calculation module calculates the hydrogen quality according to the hydrogen flow; and the calculation module calculates the hydrogen quality according to the temperature value and the pressure value.
Optionally, the control device further includes: and the alarm module is used for determining whether to carry out sound-light alarm or not according to the judgment result of the judgment module.
Through the technical scheme, the hydrogenation testing device is simple and reliable, can freely move by using the movable platform, and improves the motivation of hydrogenation testing. In addition, the hydrogenation testing device realizes the real-time monitoring of the hydrogenation performance by detecting and processing the hydrogen quality, the hydrogen storage bottle temperature and the hydrogen storage bottle pressure, and is favorable for ensuring the smooth operation of the hydrogenation process.
Additional features and advantages of embodiments of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the embodiments of the invention without limiting the embodiments of the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a hydrogenation test apparatus according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a hydrogenation test apparatus according to a second embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a control device according to an embodiment of the present invention;
FIG. 4 is a schematic diagram of the use of a hydrogenation test unit in accordance with an example of the use of the present invention; and
FIG. 5 is a schematic flow chart of a hydrogenation test conducted based on an application example of the present invention.
Description of the reference numerals
1 mobile platform 2 flow testing device
3 control device of sensing assembly 4
5 flow testing device 41 acquisition module
42 calculation module 43 judgment module
44 alarm module
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating embodiments of the invention, are given by way of illustration and explanation only, not limitation.
Example one
Fig. 1 is a schematic structural diagram of a hydrogenation test apparatus according to a first embodiment of the present invention. As shown in fig. 1, the hydrogenation testing device includes a mobile platform 1, and a flow testing device 2, a sensing assembly 3 and a control device 4 which are disposed on the mobile platform 1.
As shown in fig. 1, the movable platform 1 is, for example, a supporting platform that can be freely moved by wheels, but the embodiment of the present invention is not limited thereto, and the movable platform 1 may also be, for example, a box structure platform.
In the embodiment of the present invention, the weight testing device 2, the sensing assembly 3 and the control device 4 may be fixedly disposed on the movable platform 1 to form a movable integral testing apparatus, and when in use, the integral testing apparatus is moved to a suitable position for hydrogenation testing. However, in other embodiments, the weight measuring device 2, the sensing component 3 and the control device 4 may be detachably disposed on the mobile platform 1, so that after the mobile platform 1 is moved to the hydrogenation site, the weight measuring device 2, the sensing component 3 and the control device 4 can be removed from the mobile platform 1 to be installed at a suitable testing position according to actual requirements of the site.
In this embodiment, the weight measuring device 2 is installed in cooperation with the vehicle-mounted hydrogen storage bottle, and is used for measuring the quality of hydrogen gas added to the vehicle-mounted hydrogen storage bottle. In a preferred embodiment, the weight testing device 2 may comprise at least two balances, and wherein the at least two balances comprise at least one balance for an on-board hydrogen storage cylinder of 35MPa and at least one balance for an on-board hydrogen storage cylinder of 70 MPa. Here, the most commonly used on-vehicle hydrogen storage bottles at present are mainly 35MPa and 70MPa, and thus suitable scales are respectively provided thereto to measure the hydrogen mass. In other embodiments, the number of scales may also be configured for on-board hydrogen storage bottles of other design pressures (e.g., 40 MPa). In an embodiment of the present invention, the balance may be a conventional high precision balance, and it is preferably installed at the bottom of the hydrogen storage cylinder.
In this embodiment, the sensing component 3 is installed in cooperation with the vehicle-mounted hydrogen storage bottle and is used for measuring the temperature value and the pressure value of the vehicle-mounted hydrogen storage bottle. Wherein, the sensing component 3 is preferably a temperature sensor and a pressure sensor which respectively measure the temperature value and the pressure value of the vehicle-mounted hydrogen storage bottle, and the temperature sensor and the pressure sensor are preferably arranged on the vehicle-mounted hydrogen storage bottle.
In this embodiment, the control device 4 is electrically connected to the weight testing device 2 and the sensing component 3, and is configured to determine the hydrogenation performance of hydrogenation on the vehicle-mounted hydrogen storage bottle according to the hydrogen mass, the temperature value, and the pressure value. Herein, the term "electrical connection" of embodiments of the present invention is used to describe a signal connection, such as a control signal and a feedback signal, between two components, as well as an electrical power connection between two components.
The control device 4 may be a Programmable Logic Controller (PLC), but in other embodiments, the control device 4 may also be a single Chip microcomputer (mcu), a Digital Signal Processor (DSP), a System on a Chip (SOC), or other program controllers.
Wherein, in one embodiment, the hydrogenation performance may include accuracy and safety of hydrogenation to the on-board hydrogen storage bottle. The accuracy is an index for judging whether the hydrogen output by a hydrogenation machine of a hydrogenation station is consistent with the hydrogen injected into the vehicle-mounted hydrogen storage bottle, if the hydrogen output by the hydrogenation machine of the hydrogenation station is inconsistent with the hydrogen injected into the vehicle-mounted hydrogen storage bottle, the vehicle-mounted hydrogen storage bottle is possibly leaked, and safety early warning needs to be carried out in time; the safety is an index for judging whether the current hydrogenation process is safe, wherein the vehicle-mounted hydrogen storage bottle has the danger of hydrogen leakage or hydrogen explosion due to the reasons of long hydrogen storage time, large capacity, high pressure, environmental temperature and the like, so that the safety judgment is needed. In an example, the accuracy can be judged according to the mass change of the vehicle-mounted hydrogen cylinder, and if the mass change and the mass of the hydrogen output by the hydrogenation machine are within a set accuracy range, the hydrogen storage accuracy of the vehicle-mounted hydrogen cylinder at the moment can be determined to be qualified; the safety can be judged according to the temperature value and the pressure value in the vehicle-mounted hydrogen cylinder, if the temperature value and the pressure value exceed a preset safety range, the vehicle-mounted hydrogen cylinder is judged to be in an unsafe state, otherwise, the safety is qualified.
In conclusion, the hydrogenation testing device provided by the embodiment of the invention is simple and reliable, can freely move by using the movable platform 1, and improves the motivation of hydrogenation testing. In addition, the hydrogenation testing device provided by the embodiment of the invention realizes real-time monitoring of the hydrogenation performance by detecting and processing the hydrogen quality, the hydrogen storage bottle temperature and the hydrogen storage bottle pressure, and is beneficial to ensuring the hydrogenation process to be carried out smoothly.
Example two
Fig. 2 is a schematic structural diagram of a hydrogenation testing apparatus according to a second embodiment of the present invention, and with respect to the hydrogenation testing apparatus shown in fig. 1, the hydrogenation testing apparatus in this embodiment may further include a flow rate testing apparatus 5 disposed on the mobile platform 1. The flow testing device 5 is arranged at a hydrogenation inlet of the vehicle-mounted hydrogen storage bottle and used for measuring hydrogen flow at the hydrogenation inlet.
Accordingly, for the flow rate testing device 5 added in the preferred embodiment, the control device 4 is further configured to calculate a hydrogen gas rate for adding hydrogen to the on-board hydrogen storage bottle according to the hydrogen gas flow rate, and combine the hydrogen gas rate with the hydrogen gas quality, the temperature value and the pressure value to determine the hydrogenation performance for adding hydrogen to the on-board hydrogen storage bottle.
In the preferred embodiment, the flow testing device 2 can be a gas flow meter, and the range thereof can be selected according to the requirements of the test field.
In addition to accuracy and safety, the hydrogenation performance in this embodiment may also include the performance of the rate of hydrogen gas being hydrogenated to the on-board hydrogen storage bottle. Generally, the hydrogenation process is as fast as possible, so that the hydrogen rate can be used to determine whether the current hydrogen rate is within a normal range.
Fig. 3 shows a schematic structural diagram of the control device of the present embodiment with respect to the hydrogen rate, accuracy and safety of hydrogen addition to the on-board hydrogen storage bottle, and the function of the control device 4 described above. As shown in fig. 3, the control device 4 may include: an obtaining module 41, configured to obtain the hydrogen flow rate from the flow rate testing device 5, obtain the temperature value and the pressure value from the sensing assembly 3, and obtain the hydrogen quality from the weight testing device 2; the calculation module 42 is used for calculating the hydrogen rate of hydrogen addition to the vehicle-mounted hydrogen storage bottle according to the hydrogen flow; and a judging module 43, configured to judge whether the hydrogen adding rate to the vehicle-mounted hydrogen storage bottle is normal according to the hydrogen rate, judge the accuracy of hydrogen adding to the vehicle-mounted hydrogen storage bottle according to the hydrogen quality, and judge the safety of hydrogen adding to the vehicle-mounted hydrogen storage bottle according to the temperature value and the pressure value.
The obtaining module 41 is electrically connected to the flow rate measuring device 2, the sensing assembly 3 and the weight measuring device 5 respectively; the method by which the calculation module 42 calculates the hydrogen rate from the hydrogen flow rate is very conventional, such as reflecting the corresponding hydrogen rate by the hydrogen flow rate per unit time; the above reference is made to the scheme of the judgment module 43 for judging whether the rate of hydrogen addition to the vehicle-mounted hydrogen storage bottle is normal, the accuracy and the safety, and the detailed description is omitted here.
In addition, in a preferred embodiment, the control device 4 may further include: and the alarm module 44 is configured to determine whether to perform an audible and visual alarm according to the judgment result of the judgment module 43. For example, in case of insufficient accuracy and safety, the alarm module 44 may be used to perform audible and visual alarm. In other embodiments, the control device 4 may further configure a display screen to display the determination result of the determination module 43 and the alarm information of the alarm module 44 in real time.
Compared with the first embodiment, the method has the advantages that the judgment on the hydrogen rate is increased, the content of the hydrogenation performance evaluation is enriched, and the smooth operation of the hydrogenation process can be ensured.
EXAMPLE III
In both the first and second examples, the hydrogen quality was obtained by a gravimetric testing device, and in the third example, a new method for obtaining hydrogen quality was presented. The hydrogenation test apparatus of the third embodiment is the same as that of the second embodiment.
In this embodiment, the calculation module 42 is further configured to calculate the hydrogen quality according to the hydrogen flow rate and/or calculate the hydrogen quality according to the temperature value and the pressure value.
For example, the calculation module 42 may directly calculate the mass of hydrogen gas to be filled based on the hydrogen gas flow rate read by the gas flow meter before and after filling.
For example, the calculation module 42 may directly calculate the mass of the hydrogen gas to be filled according to the molar mass of the hydrogen gas through actual state equations of the gas and through readings of temperature sensors and pressure sensors on the on-board hydrogen storage bottle before and after filling, for example, through a formula PV ═ 1+ a × P/T) × nRT, where: p is the gas storage pressure in Pa; v is the gas storage volume in m3(ii) a R is a gas constant, and hydrogen is 4214J/(kg.K); t is the gas storage temperature in K; alpha is constant, and alpha is 1.9155 × 10-6The unit is K/Pa; n is the amount of gas material in the gas and is expressed in mol.
Thus, the quality of hydrogen can be obtained by the same method as in example three, and the judgment of the hydrogenation performance can be further made similarly to example one or example two.
In addition, unlike in the first or second example, the hydrogenation performance of this example may also include reproducibility of the hydrogen quality. Here, the repeatability is an index for judging whether the measured hydrogen quality is accurate, and if the measured hydrogen qualities are the same or approximately the same (i.e., the difference is within the set range) in different manners, it indicates that the measured hydrogen quality is accurate and the repeatability is high, otherwise, the measured hydrogen quality is inaccurate and the repeatability is low.
Accordingly, the determining module 43 is further configured to determine the repeatability of the hydrogen quality by determining whether the following three are consistent: the mass of hydrogen gas measured by the weight measuring device 2; the calculation module 42 calculates the hydrogen mass according to the hydrogen flow rate; and the calculation module 42 calculates the hydrogen mass according to the temperature value and the pressure value.
Therefore, compared with the first embodiment and the second embodiment, the method has the advantages that the judgment on the repeatability of the hydrogen quality is increased, the content of the evaluation on the hydrogenation performance is enriched, and the smooth operation of the hydrogenation process can be ensured.
Application example
The operation of the hydrogenation test apparatus according to the embodiment of the present invention is specifically described below by using an application example, which is applied to the first embodiment, the second embodiment, and the third embodiment. Fig. 4 is an application schematic diagram of the hydrogenation testing device of this application example, in which the vehicle-mounted hydrogen storage tank has two 35MPa and 70MPa, the weight testing device 2 has two high-precision balances, the flow testing device 5 is a flow meter, and the temperature sensor and the pressure sensor are disposed on the vehicle-mounted hydrogen storage tank and are not shown in the figure, and the control device 4 can be understood by a text description and is also not shown in the figure. Referring additionally to fig. 4, the hydrogenation process also involves the use of multiple valves, and the function of each valve can be understood with reference to the prior art and will not be described in further detail herein.
Fig. 5 shows a schematic flow chart of a hydrogenation test based on the application example, and as shown in fig. 5, the method can comprise the following steps:
and S100, moving the hydrogenation testing device to a hydrogenation testing site through the movable platform 1.
The hydrogenation test device can be used for carrying out hydrogenation test on a plurality of vehicles, and when test requirements exist, the hydrogenation test device needs to be moved to a test site of a corresponding vehicle through the movable platform 1.
And step S200, mounting all the components on the mobile platform 1 in cooperation with a hydrogenation machine and a vehicle-mounted hydrogen storage bottle.
Wherein, each part promptly indicates high accuracy balance, flowmeter, sensing subassembly etc. and these parts can be fixed mounting in order to form an integral test equipment on portable platform, also can install detachably on portable platform 1 to dismantle out in order to install to suitable position from portable platform 1 when necessary, install again on portable platform 1 after the test is accomplished.
And step S300, after the installation is finished, starting a hydrogenation test.
In step S400, the control device 4 obtains parameters such as hydrogen flow rate, hydrogen quality, hydrogen temperature value, and hydrogen pressure value, and performs parameter processing.
The parameter processing comprises calculating the hydrogen rate, judging whether each parameter is in a preset normal range, and the like.
And S500, judging the hydrogenation performance of the hydrogenation process based on the parameter processing result of the control device 4, and performing corresponding processing according to the hydrogenation performance.
For example, if the hydrogen rate calculated by the control device is within a preset normal range, the hydrogenation rate is qualified, otherwise, an alarm prompt should be considered; if the difference value between the calculated hydrogen quality and the hydrogen quality output by the hydrogenation machine is within a preset range, the accuracy of the hydrogenation process is qualified, otherwise, alarm reminding needs to be considered; if the calculated hydrogen temperature value and the calculated hydrogen pressure value are both within the preset safety range, the safety of the hydrogenation process is qualified; if the difference value of the hydrogen quality obtained by the control device 4 in different modes is within a preset range, the repeatability of the hydrogenation quality is qualified, otherwise, alarm reminding needs to be considered.
The hydrogenation test device provided by the embodiment of the invention has the advantages that the mobility is good, one hydrogenation test device can be suitable for a plurality of hydrogenation sites, the hydrogenation test process is simple and reliable, and the hydrogenation performance can be well evaluated to ensure the normal operation of the hydrogenation process.
Although the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the embodiments of the present invention are not limited to the details of the above embodiments, and various simple modifications can be made to the technical solutions of the embodiments of the present invention within the technical idea of the embodiments of the present invention, and the simple modifications all belong to the protection scope of the embodiments of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the embodiments of the present invention do not describe every possible combination.
Those skilled in the art will understand that all or part of the steps in the method according to the above embodiments may be implemented by a program, which is stored in a storage medium and includes several instructions to enable a single chip, a chip, or a processor (processor) to execute all or part of the steps in the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
In addition, any combination of various different implementation manners of the embodiments of the present invention is also possible, and the embodiments of the present invention should be considered as disclosed in the embodiments of the present invention as long as the combination does not depart from the spirit of the embodiments of the present invention.

Claims (10)

1. The hydrogenation testing device is characterized by comprising a movable platform, and a weight testing device, a sensing assembly and a control device which are arranged on the movable platform; wherein the content of the first and second substances,
the weight testing device is matched with the vehicle-mounted hydrogen storage bottle for mounting and is used for testing the quality of hydrogen for hydrogenating the vehicle-mounted hydrogen storage bottle;
the sensing assembly is matched with the vehicle-mounted hydrogen storage bottle for mounting and is used for measuring the temperature value and the pressure value of the vehicle-mounted hydrogen storage bottle; and
the control device is electrically connected with the weight testing device and the sensing assembly and used for judging the hydrogenation performance of hydrogenation on the vehicle-mounted hydrogen storage bottle according to the hydrogen quality, the temperature value and the pressure value.
2. The hydrogenation test apparatus of claim 1, wherein the weight test apparatus comprises at least two balances, and wherein the at least two balances comprise at least one balance for an on-board hydrogen storage cylinder of 35MPa and at least one balance for an on-board hydrogen storage cylinder of 70 MPa.
3. The hydrogenation test device according to claim 1, wherein the sensing assembly comprises a temperature sensor and a pressure sensor for respectively measuring a temperature value and a pressure value of the vehicle-mounted hydrogen storage cylinder.
4. The hydrogenation test unit of claim 1, wherein said control unit is a PLC.
5. The hydrogenation test apparatus of any one of claims 1 to 4, further comprising a flow rate test apparatus disposed on the mobile platform, wherein,
the flow testing device is arranged at a hydrogenation inlet of the vehicle-mounted hydrogen storage bottle and is used for measuring hydrogen flow at the hydrogenation inlet; and
the control device is also used for calculating the hydrogen rate of the hydrogen supplied to the vehicle-mounted hydrogen storage bottle according to the hydrogen flow, and combining the hydrogen rate with the hydrogen quality, the temperature value and the pressure value to judge the hydrogenation performance of the hydrogen supplied to the vehicle-mounted hydrogen storage bottle.
6. The hydrogenation test apparatus of claim 5, wherein said flow test apparatus is a gas flow meter.
7. The hydrogenation test device of claim 5, wherein said hydrogenation performance comprises rate, accuracy and safety of hydrogenation to said onboard hydrogen storage bottle, and said control device comprises:
an obtaining module, configured to obtain the hydrogen flow rate from the flow rate testing device, obtain the temperature value and the pressure value from the sensing component, and obtain the hydrogen quality from the weight testing device;
the calculation module is used for calculating the hydrogen rate of the hydrogen supplied to the vehicle-mounted hydrogen storage bottle according to the hydrogen flow; and
the judging module is used for judging whether the rate of hydrogen addition to the vehicle-mounted hydrogen storage bottle is normal or not according to the hydrogen rate, judging the accuracy of hydrogen addition to the vehicle-mounted hydrogen storage bottle according to the hydrogen quality, and judging the safety of hydrogen addition to the vehicle-mounted hydrogen storage bottle according to the temperature value and the pressure value.
8. The hydrogenation test apparatus according to claim 7, wherein the calculation module is further configured to calculate the hydrogen mass according to the hydrogen flow rate, and/or calculate the hydrogen mass according to the temperature value and the pressure value.
9. The hydrogenation test apparatus according to claim 8, wherein the hydrogenation performance further comprises repeatability of the hydrogen quality, and the determination module is further configured to determine the repeatability of the hydrogen quality by determining whether the following three are consistent:
the mass of hydrogen gas determined by the gravimetric testing device;
the calculation module calculates the hydrogen quality according to the hydrogen flow; and
and the calculation module calculates the hydrogen quality according to the temperature value and the pressure value.
10. The hydrogenation test apparatus according to claim 7, wherein the control apparatus further comprises:
and the alarm module is used for determining whether to carry out sound-light alarm or not according to the judgment result of the judgment module.
CN201811108939.4A 2018-09-21 2018-09-21 Hydrogenation testing device Pending CN110939863A (en)

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Application Number Priority Date Filing Date Title
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111681396A (en) * 2020-04-13 2020-09-18 北京航天试验技术研究所 Vehicle-mounted liquid hydrogen bottle ground test system and test method
CN112460478A (en) * 2020-11-06 2021-03-09 中材科技(成都)有限公司 Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve
CN113834675A (en) * 2020-06-08 2021-12-24 国家能源投资集团有限责任公司 Method and device for judging filling performance of hydrogenation machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111681396A (en) * 2020-04-13 2020-09-18 北京航天试验技术研究所 Vehicle-mounted liquid hydrogen bottle ground test system and test method
CN113834675A (en) * 2020-06-08 2021-12-24 国家能源投资集团有限责任公司 Method and device for judging filling performance of hydrogenation machine
CN112460478A (en) * 2020-11-06 2021-03-09 中材科技(成都)有限公司 Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve

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