CN118347754A - High-flow hydrogenation machine test system - Google Patents
High-flow hydrogenation machine test system Download PDFInfo
- Publication number
- CN118347754A CN118347754A CN202310065903.7A CN202310065903A CN118347754A CN 118347754 A CN118347754 A CN 118347754A CN 202310065903 A CN202310065903 A CN 202310065903A CN 118347754 A CN118347754 A CN 118347754A
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- pressure
- hydrogenation machine
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- hydrogenation
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- 238000005984 hydrogenation reaction Methods 0.000 title claims abstract description 100
- 238000012360 testing method Methods 0.000 title claims abstract description 38
- 239000007789 gas Substances 0.000 claims abstract description 61
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000001257 hydrogen Substances 0.000 claims abstract description 42
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 42
- 238000002347 injection Methods 0.000 claims abstract description 9
- 239000007924 injection Substances 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 238000001595 flow curve Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The application provides a high-flow hydrotreater test system, which comprises an air source, a release pipeline and a flame arrester, wherein the air source is used for providing injection air with at least three pressure levels to a hydrotreater to be tested; the hydrogenation machine to be tested is used for adding hydrogen for the simulated vehicle; the relief pipeline reduces the pressure of relief gas at the second end of the hydrogenation machine to be tested to be approximately equal to the atmospheric pressure; the flame arrestor receives the gas discharged by the discharge pipeline. According to the scheme, the high-flow hydrogen generator can realize high-flow hydrogen flow between a high-pressure air source and a simulated low-pressure loaded hydrogen storage bottle and high-flow direct discharge, and can meet the test of a high-flow hydrogen generator under laboratory conditions.
Description
Technical Field
The application relates to the technical field of high-flow hydrogenation, in particular to a high-flow hydrogenation machine test system.
Background
At present, a conventional 35MPa hydrogenation mode is mainly applied to a fuel cell automobile, and the hydrogen storage amount of a fuel cell heavy truck or a mobilized locomotive reaches more than 100kg, when the conventional 35MPa hydrogenation technology is adopted, the filling time is about 1 hour, so that the locomotive stop time is long, the operation efficiency is seriously influenced, and therefore, a novel rapid hydrogenation technology is required to be adopted for the high-capacity hydrogen storage system. Because the hydrogenation process is pressure-difference driven compressible fluid transportation, the key is to develop a large-flow hydrogen supply technology in order to improve the hydrogenation rate. For this reason, a large-flow hydrogenation machine needs to be developed. The test platform is needed in the development and subsequent verification processes of the high-flow hydrogenation machine, so that how to replicate the actual working condition of the hydrogenation station under the existing laboratory condition becomes a problem to be solved urgently.
Disclosure of Invention
The application aims to solve the technical problem that the hydrogenation process of a high-flow hydrogenation machine is difficult to simulate under laboratory conditions in the prior art, and therefore, the application provides a test evaluation system of the high-flow hydrogenation machine, and the simulation of the high-flow filling process can be realized under laboratory conditions.
Aiming at the technical problems, the application provides the following technical scheme:
the application provides a high-flow hydrogenation machine test system, which comprises:
The gas source is connected with the first end of the hydrogenation machine to be tested and is used for providing injection gas with at least three pressure levels to the hydrogenation machine to be tested, wherein the pressure of the lowest pressure level is greater than or equal to 35Mpa; the hydrogenation machine to be tested is used for adding hydrogen for the simulated vehicle;
the relief pipeline is connected with the second end of the hydrogenation machine to be tested and is used for reducing the pressure of the relief gas at the second end of the hydrogenation machine to be tested to be approximately equal to the atmospheric pressure;
and the flame arrester is connected with the discharge pipeline and is used for receiving the gas discharged by the discharge pipeline.
The high flow hydrotreater test system as described in some aspects, the bleed line comprising:
one end of the stop valve is connected with the second end of the hydrogenation machine to be detected;
One end of the pressure release element is connected with the other end of the stop valve;
One end of the one-way valve is connected with the other end of the pressure relief element, and the other end of the one-way valve is connected with the flame arrester.
In some aspects of the high flow hydrotreater test system, the pressure relief element comprises an orifice plate or a back pressure valve.
The high flow hydrotreater test system described in some aspects further comprises:
The first pressure sensor is arranged at the first end of the hydrogenation machine to be detected and is used for detecting the pressure value of the injected gas of the hydrogenation machine to be detected;
the second pressure sensor is arranged at the second end of the hydrogenation machine to be detected and is used for detecting the pressure value of the discharged gas of the hydrogenation machine to be detected;
a controller receives the injection gas pressure value and the bleed gas pressure value.
The high flow hydrotreater test system described in some aspects further comprises:
The main control valve is arranged between the air source and the first end of the hydrogenation machine to be tested; and the controlled end of the main control valve is connected with the control unit of the hydrogenation machine to be tested.
In some embodiments, the high-flow hydrogenator testing system comprises at least three sets of hydrogen cylinders of different pressures, wherein the different hydrogen cylinders are connected to the master control valve through different gas passages.
In some embodiments, the high-flow hydrotreater test system is characterized in that each gas passage is provided with a branch valve, and a controlled end of the branch valve is connected with the controller.
In some embodiments, the controller receives a hydrogenation flow of the hydrogenation machine to be tested, and adjusts the opening of the bypass valve and/or the total control valve according to a relationship between the hydrogenation flow and a set flow threshold.
In some embodiments, the controller is provided with a vehicle-mounted hydrogen storage volume of the simulated vehicle and a rated working pressure of the hydrogenation machine to be tested; and the controller adjusts the opening of the branch valve and/or the total control valve according to the vehicle-mounted hydrogen storage volume, the rated working pressure and the predicted hydrogenation duration.
Some schemes the high-flow hydrogenation machine test system, still include the warning module:
The controller is used for controlling the warning module to send out a warning signal when the pressure value of the injected gas is larger than a first pressure threshold value or the pressure value of the discharged gas is larger than a second pressure threshold value; the second pressure threshold is less than the first pressure threshold.
Compared with the prior art, the technical scheme of the application has the following technical effects:
The application provides a high-flow hydrotreater test system, which comprises an air source, a release pipeline and a flame arrester, wherein the air source is used for providing injection air with at least three pressure levels to a hydrotreater to be tested, and the pressure of the lowest pressure level is greater than or equal to 35Mpa; the hydrogenation machine to be tested is used for adding hydrogen for the simulated vehicle; the relief pipeline reduces the pressure of relief gas at the second end of the hydrogenation machine to be tested to be approximately equal to the atmospheric pressure; the flame arrestor receives the gas discharged by the discharge pipeline. According to the scheme, at least three gas sources with pressure levels are utilized to inject gas into the hydrogenation machine to be tested, the pressure of the lowest pressure level is greater than or equal to 35Mpa, so that high-flow hydrogen between a high-pressure gas source and a simulated low-pressure loaded hydrogen storage bottle can be realized, the pressure of the discharge gas at the second end of the hydrogenation machine to be tested is reduced to be approximately equal to the atmospheric pressure through a discharge pipeline, and then the gas can be directly discharged to a flame arrester, and high-flow direct discharge can be realized.
Drawings
The objects and advantages of the present application will be better understood by describing in detail preferred embodiments thereof with reference to the accompanying drawings in which:
FIG. 1 is a schematic diagram of the connection relationship between the components of a high-flow hydrotreater test system according to an embodiment of the application;
FIG. 2 is a schematic diagram illustrating connection relationships between components of a high-flow hydrotreater test system according to another embodiment of the application;
FIG. 3 is a schematic illustration of a filling performance curve according to one embodiment of the present application.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In addition, the technical features of the different embodiments of the present application described below may be combined with each other as long as they do not collide with each other.
The embodiment provides a high-flow hydrogenation machine testing system, which is shown in fig. 1 and comprises an air source 1, a discharge pipeline 2 and a flame arrester 3. The gas source 1 is connected with a first end of the hydrogenation machine to be tested, and the gas source 1 is used for providing injection gas with at least three pressure levels to the hydrogenation machine to be tested, wherein the pressure of the lowest pressure level is greater than or equal to 35Mpa; the hydrogenation machine to be tested is used for adding hydrogen for the simulated vehicle. The relief pipeline 2 is connected with the second end of the hydrogenation machine to be tested, and the relief pipeline 2 is used for reducing the pressure of the relief gas at the second end of the hydrogenation machine to be tested to be approximately equal to the atmospheric pressure. The flame arrester 3 is connected with the discharge pipeline 2 and receives gas discharged by the discharge pipeline 2.
At present, key points to be considered by a high-flow hydrogenation machine testing system include: high-flow hydrogen flow and direct high-flow discharge are realized between a high-pressure gas source and a simulated low-pressure loaded hydrogen storage bottle (simulated vehicle). According to the scheme, at least three gas sources with pressure levels are utilized to inject gas into the hydrogenation machine to be tested, the pressure of the lowest pressure level is greater than or equal to 35Mpa, so that the high-flow hydrogen between the high-pressure gas source and the simulated low-pressure loaded hydrogen storage bottle can be realized, the pressure of the discharge gas at the second end of the hydrogenation machine to be tested is reduced to be approximately equal to the atmospheric pressure through the discharge pipeline 2, and then the gas can be directly discharged to the flame arrester 3, and the high-flow direct discharge can be realized.
Further, as shown in fig. 2, in the testing system of the high-flow hydrotreater provided by the embodiment of the application, the relief pipeline 2 includes a stop valve 21, a pressure relief element 22 and a check valve 23, where: one end of the stop valve 21 is connected with the second end of the hydrogenation machine to be detected; one end of the pressure relief element 22 is connected with the other end of the stop valve 21; one end of the one-way valve 23 is connected with the other end of the pressure relief element 22, and the other end of the one-way valve 23 is connected with the flame arrester 3. The scheme has simple structure, simplifies the hardware structure of the whole system and reduces the hardware complexity of the system. Further, the pressure relief element 22 includes an orifice plate or a back pressure valve, which is shown by way of example as a conventional device, which is convenient for installation and use and has low cost.
In some aspects, as shown in FIG. 2, the high flow hydrotreater test system further includes a first pressure sensor 41, a second pressure sensor 42, and a controller 50. The first pressure sensor 41 is disposed at a first end of the to-be-detected hydrogenation machine, and is configured to detect an injection gas pressure value of the to-be-detected hydrogenation machine; the second pressure sensor 42 is disposed at the second end of the to-be-detected hydrogenation machine, and is configured to detect a pressure value of the bleed gas of the to-be-detected hydrogenation machine; the controller 50 receives the injection gas pressure value and the bleed gas pressure value. Because the hydrogenation process is the compressible fluid transportation driven by pressure difference, the large-flow hydrogenation machine developed for improving the hydrogenation rate is mainly focused on the influence factors of the hydrogenation flow rate, including the air source pressure and the hydrogen storage system pressure, the pressure sensors are arranged at the two ends of the hydrogenation machine to be detected and used for monitoring the values of the influence factors.
Further preferably, the system further comprises a total control valve 60, wherein the total control valve 60 is arranged between the gas source 1 and the first end of the hydrogenation machine to be tested; the controlled end of the master control valve 60 is connected with the control unit of the hydrogenation machine to be tested. I.e. the total control valve 60 is controlled by the hydrotreater to be tested. The total control valve 60 can further ensure the sealing performance between the air source 1 and the hydrogenation machine to be tested, and can realize the control of the total air path.
In some embodiments, the gas source 1 comprises at least three sets of hydrogen cylinders of different pressures, and the different hydrogen cylinders are connected to the master control valve 60 by different gas passages. As shown in fig. 1, the gas source 1 comprises 2 groups of hydrogen storage bottle groups with medium and high pressure of 45MPa and 1 group of hydrogen storage bottle groups with 35 MPa. A bypass valve 11 is disposed on each gas passage, and a controlled end of the bypass valve 11 is connected to the controller 50. Thus, different pressure levels can be conveniently achieved.
In some embodiments of the high-flow hydrotreater test system, the controller 60 receives a hydrogenation flow of the hydrotreater to be tested, and adjusts the opening of the bypass valve 11 and/or the total control valve 60 according to a relationship between the hydrogenation flow and a set flow threshold. Because the hydrogenation machine to be tested is provided with a flow sensor, the hydrogenation flow can be detected. Since the present application is directed to a high-flow hydrogenation machine, that is, the hydrogenation flow rate of the hydrogenation machine needs to reach the desired value, that is, the set flow rate threshold, so if the actual hydrogenation flow rate does not reach the set flow rate threshold, the controller 60 may adjust the valve opening of the gas channel of the injected gas to be higher, and in this case, taking fig. 2 as an example, the valve opening of the gas channel of the injected gas may be adjusted in a matched manner according to the total opening of the three branch valves 11 and the opening of the total control valve 60, so that the hydrogenation flow rate can meet the requirement.
In some aspects, the controller 60 has built-in the vehicle-mounted hydrogen storage volume of the simulated vehicle and the rated operating pressure of the hydrogen generator to be tested; the controller 60 adjusts the opening degree of the bypass valve 11 and/or the total control valve 60 according to the vehicle-mounted hydrogen storage volume, the rated operating pressure, and the predicted hydrogenation period. That is, when the gas source 1 injects hydrogen into the hydrogenation machine to be tested, the rated working pressure cannot be exceeded, otherwise, safety accidents are easy to occur.
In the above scheme, the high-flow hydrogenation machine test system further comprises a warning module: the controller is used for controlling the warning module to send out a warning signal when the pressure value of the injected gas is larger than a first pressure threshold value or the pressure value of the discharged gas is larger than a second pressure threshold value; the second pressure threshold is less than the first pressure threshold. The warning module can flash for a warning lamp or a loudspeaker plays warning sounds and the like.
The effects of the above scheme will be described below using a specific example. Under a specific test scene, a large-flow hydrogenation machine with a passive pressure regulating device is taken as a simulation object (a simulation vehicle), and main parameters required by a controller are as follows: the simulated vehicle-mounted hydrogen storage volume is as follows: 140L x 8; rated operating pressure is: 35.0MPa; the maximum operating pressure is: 43.8MPa; the filling ambient temperature is: 23 ℃. By adopting the system provided by the embodiment of the application, the simulated vehicle is simulated to be filled with hydrogen for the high-flow hydrogenation machine of the pressure regulating device, and the initial state parameters of the hydrogen storage system of the simulated vehicle are shown in the table 1:
TABLE 1 initial State parameters of Hydrogen storage System
| Initial pressure | Initial temperature | Volume of | Ambient temperature |
| 2.3MPa | 18℃ | 1120L | 23℃ |
The state parameters of the simulated vehicle hydrogen storage system after the filling is finished are shown in table 2:
TABLE 2 State parameters of Hydrogen storage System after filling
| Filling end pressure | Filling end temperature | Volume of | Ambient temperature |
| 36.8MPa | 57℃ | 1120L | 23℃ |
Based on the data set forth in the above table, a fill mass flow curve as shown in FIG. 3 was obtained after this simulated vehicle fill. As can be seen from FIG. 3, the average filling mass flow rate of the high-pressure hydrogen filling system is about 6.2kg/min, and the requirement of large mass flow rate is met.
According to the scheme, under the condition of analyzing the operation working condition of the hydrogenation machine, in order to determine the influence rule and the operation characteristic of the hydrogenation machine under the condition of high flow, the high-flow hydrogenation machine test system is provided, and high-flow filling can be realized under the condition of a laboratory. The scheme of the application realizes the operation of the hydrogenation machine under the condition of large mass flow; the test requirement under the actual hydrogenation station is replaced, so that the test cost is reduced; the hardware structure of the hydrogenation machine is simplified, and the complexity of the hardware system of the hydrogenation machine is reduced.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While obvious variations or modifications are contemplated as falling within the scope of the present application.
Claims (10)
1. A high flow hydrotreater test system comprising:
The gas source is connected with the first end of the hydrogenation machine to be tested and is used for providing injection gas with at least three pressure levels to the hydrogenation machine to be tested, wherein the pressure of the lowest pressure level is greater than or equal to 35Mpa; the hydrogenation machine to be tested is used for adding hydrogen for the simulated vehicle;
the relief pipeline is connected with the second end of the hydrogenation machine to be tested and is used for reducing the pressure of the relief gas at the second end of the hydrogenation machine to be tested to be approximately equal to the atmospheric pressure;
and the flame arrester is connected with the discharge pipeline and is used for receiving the gas discharged by the discharge pipeline.
2. The high flow hydrotreater test system of claim 1, wherein the bleed line comprises:
one end of the stop valve is connected with the second end of the hydrogenation machine to be detected;
One end of the pressure release element is connected with the other end of the stop valve;
One end of the one-way valve is connected with the other end of the pressure relief element, and the other end of the one-way valve is connected with the flame arrester.
3. The high flow hydrotreater test system of claim 2, wherein:
the pressure relief element comprises an orifice plate or a back pressure valve.
4. The high flow hydro-machine test system as defined by any one of claims 1-3, further comprising:
The first pressure sensor is arranged at the first end of the hydrogenation machine to be detected and is used for detecting the pressure value of the injected gas of the hydrogenation machine to be detected;
the second pressure sensor is arranged at the second end of the hydrogenation machine to be detected and is used for detecting the pressure value of the discharged gas of the hydrogenation machine to be detected;
a controller receives the injection gas pressure value and the bleed gas pressure value.
5. The high flow hydrotreater test system as defined in claim 4, further comprising:
The main control valve is arranged between the air source and the first end of the hydrogenation machine to be tested; and the controlled end of the main control valve is connected with the control unit of the hydrogenation machine to be tested.
6. The high flow hydrotreater test system as defined in claim 5, wherein:
the gas source comprises at least three groups of hydrogen storage cylinders with different pressures, and the different hydrogen storage cylinders are connected to the main control valve through different gas passages.
7. The high flow hydrotreater test system as defined in claim 6, wherein:
And each gas passage is provided with a branch valve, and the controlled end of the branch valve is connected with the controller.
8. The high flow hydrotreater test system as defined in claim 7, wherein:
The controller receives the hydrogenation flow of the hydrogenation machine to be detected, and adjusts the opening of the bypass valve and/or the total control valve according to the relation between the hydrogenation flow and a set flow threshold.
9. The high flow hydrotreater test system as defined in claim 7, wherein:
The controller is internally provided with a vehicle-mounted hydrogen storage volume of the simulated vehicle and a rated working pressure of the hydrogenation machine to be tested; and the controller adjusts the opening of the branch valve and/or the total control valve according to the vehicle-mounted hydrogen storage volume, the rated working pressure and the predicted hydrogenation duration.
10. The high flow hydrotreater test system of claim 7, further comprising a warning module:
The controller is used for controlling the warning module to send out a warning signal when the pressure value of the injected gas is larger than a first pressure threshold value or the pressure value of the discharged gas is larger than a second pressure threshold value; the second pressure threshold is less than the first pressure threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310065903.7A CN118347754A (en) | 2023-01-16 | 2023-01-16 | High-flow hydrogenation machine test system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310065903.7A CN118347754A (en) | 2023-01-16 | 2023-01-16 | High-flow hydrogenation machine test system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118347754A true CN118347754A (en) | 2024-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310065903.7A Pending CN118347754A (en) | 2023-01-16 | 2023-01-16 | High-flow hydrogenation machine test system |
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| Country | Link |
|---|---|
| CN (1) | CN118347754A (en) |
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- 2023-01-16 CN CN202310065903.7A patent/CN118347754A/en active Pending
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