CN212674611U - High-temperature high-pressure gas hydrogen charging test device - Google Patents
High-temperature high-pressure gas hydrogen charging test device Download PDFInfo
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- CN212674611U CN212674611U CN202021815281.3U CN202021815281U CN212674611U CN 212674611 U CN212674611 U CN 212674611U CN 202021815281 U CN202021815281 U CN 202021815281U CN 212674611 U CN212674611 U CN 212674611U
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Abstract
The utility model discloses a high temperature high pressure gas charging hydrogen test device, the bottom of kettle cover sets up the bottom plate, bottom plate and kettle cover pass through the support column and connect, fix a position the bottom plate fixedly, the last pull rod that sets up of kettle cover, the one end of the one end test piece of pull rod is connected, the other end and the bottom plate of test piece are connected, during the experiment, put into the high temperature autoclave body with the test piece, and with kettle cover and high temperature autoclave body sealing connection, adopt heating device to the test piece heating, exert the pulling force to the test piece through the pull rod simultaneously, can simulate the hydrogen military service environment below temperature 300 ℃ pressure 10MPa, provide experimental technological support for the performance of hydrogen storage hydrogen transportation material, and this test device simple structure, and convenient operation.
Description
Technical Field
The utility model relates to a hydrogen is carried and hydrogen storage engineering technical field specifically is a high temperature high pressure gas filling hydrogen test device.
Background
Hydrogen energy is a clean and efficient energy, development and utilization of the energy are in a critical condition, however, hydrogen is easy to leak and diffuse, explosion energy is large and has a degradation effect on materials, the risk of hydrogen storage and transportation is high, and the hydrogen storage and transportation becomes one of the obstacles of large-scale popularization and application of hydrogen energy, the safe operation of a hydrogen storage and transportation system is influenced by the selection of hydrogen-resistant materials and the change of material performance in a hydrogen environment, how to simulate a hydrogen service environment to evaluate the performance of the hydrogen storage and transportation materials is of great importance, and a hydrogen filling test device is an indispensable device for simulating the hydrogen environment.
The main problems of the existing hydrogen charging test device are that firstly, most researches adopt an electrochemical hydrogen charging mode, the hydrogen content is mainly adjusted by the hydrogen charging current density, the method can only be carried out at normal temperature and normal pressure, the difference with the actual service environment is larger, secondly, the existing gas hydrogen charging device can only simulate the high-pressure hydrogen environment below 100 ℃, the high-temperature high-pressure environment cannot be simulated, and the device limitation is larger.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a high temperature high pressure gas filling hydrogen test device has solved filling hydrogen test device and can only carry out the problem tested at normal atmospheric temperature ordinary pressure, provides technical support for hydrogen storage hydrogen transportation material performance under the research hydrogen service environment.
The utility model discloses a realize through following technical scheme:
a high-temperature high-pressure gas hydrogen filling test device comprises a high-temperature high-pressure kettle body, a kettle cover, a stretching device and a heating device;
the heating device is arranged in the high-temperature high-pressure kettle body, the stretching device is arranged at the bottom of the kettle cover, and the stretching device comprises a bottom plate, a supporting column and a pull rod;
the bottom plate is connected with the kettle cover through the support columns and is positioned at the bottom of the kettle cover, the pull rod is arranged on the kettle cover, the lower end of the pull rod extends towards one side of the bottom plate, the pull rod and the bottom plate are used for being connected with two ends of a test piece, and the pull rod is used for applying tension to the test piece;
during the test, the stretching device is positioned in the high-temperature high-pressure kettle body, the kettle cover seals the high-temperature high-pressure kettle body, and the kettle cover is provided with vent holes for inputting hydrogen into the high-temperature high-pressure kettle body.
Preferably, the pull rod and the bottom plate are connected with two ends of the test piece through a test piece clamping device;
the test piece clamping device comprises clamping pieces with the same structure, each clamping piece comprises a connecting piece and a locking ring, one end of each connecting piece is used for being connected with a test piece, the other end of each connecting piece is connected with one end of each locking ring through a pin shaft, and the other end of each locking ring is connected with the pull rod or the base plate through threads.
Preferably, the upper end of the pull rod penetrates through the kettle cover, a driving piece is arranged on the pull rod and located at the top of the kettle cover, and the driving piece is used for enabling the pull rod to axially move to apply a pulling force to the test piece.
Preferably, the driving piece is an adjusting knob, and the adjusting knob is connected with the upper end of the pull rod through threads.
Preferably, the supporting columns are multiple, and the supporting columns are evenly distributed on the circumference.
Preferably, an air pipe is arranged in the air vent of the kettle cover, an air inlet of the air pipe is positioned at the top of the kettle cover, an air outlet is positioned at the bottom of the kettle cover and extends downwards, and when the kettle cover is connected with the high-temperature high-pressure kettle body, the air outlet is opposite to the test piece.
Preferably, the air pipe is connected with an air source through a pressure gauge.
Preferably, the top of the high-temperature and high-pressure kettle body is provided with an inwards concave embedded step, the bottom surface of the kettle cover is provided with a boss matched with the embedded step, and the top of the high-temperature and high-pressure kettle body is provided with a sealing structure.
Preferably, the bottom of the high-temperature and high-pressure kettle body is provided with an air exhaust hole for vacuumizing the interior of the high-temperature and high-pressure kettle body.
Preferably, the heating device is a heating coil, and the test piece is positioned in the center of the heating coil when being heated.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a pair of high temperature high pressure gas charging test device, the bottom of kettle cover sets up the bottom plate, bottom plate and kettle cover pass through the support column and connect, fix a position the bottom plate fixedly, the last pull rod that sets up of kettle cover, the one end of the one end test piece of pull rod is connected, the other end and the bottom plate of test piece are connected, during the experiment, put into the high temperature autoclave body with the test piece, and with kettle cover and high temperature autoclave body sealing connection, adopt heating device to the test piece heating, exert the pulling force to the test piece through the pull rod simultaneously, can simulate the hydrogen military service environment below temperature 300 ℃ pressure 10MPa, provide experimental technological support for the performance of hydrogen storage hydrogen transportation material, and this test device simple structure, and convenient operation.
Drawings
FIG. 1 is a schematic view of the high-temperature high-pressure gas hydrogen-filling test device of the present invention;
FIG. 2 is a schematic diagram of the hydrogen filling position of the test piece of the present invention;
FIG. 3 is a schematic view of the hydrogen filling test piece of the present invention;
fig. 4 is a schematic diagram of another hydrogen filling test piece of the present invention.
In the figure: 1. the device comprises a high-temperature high-pressure kettle body, a kettle cover 2, a pressure gauge 3, an air vent 4, a bolt 5, a locking ring 6, a heating coil 7, a test piece clamping device 8 and a test piece 9.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings, which are provided for purposes of illustration and not limitation.
Referring to fig. 1 and 2, the high-temperature high-pressure gas hydrogen filling test device comprises a high-temperature high-pressure kettle body 1, a kettle cover 2, a stretching device and a heating device.
The high-temperature high-pressure kettle body 1 is of a barrel-shaped structure with an open top, the heating device is arranged in the high-temperature high-pressure kettle body 1, and the stretching device is arranged at the bottom of the kettle cover 2 and used for clamping the test piece 9 and applying a pulling force to the test piece.
During the experiment, the stretching device is arranged in the high-temperature high-pressure kettle body 1, the opening side of the high-temperature high-pressure kettle body 1 is sealed by the kettle cover, the vent hole 4 is formed in the kettle cover 2 and used for inputting hydrogen into the high-temperature high-pressure kettle body 1, and the heating device is used for heating a test piece.
The stretching device comprises a bottom plate, a supporting column, a test piece clamping device 8 and a pull rod.
The bottom plate sets up the bottom at kettle cover 2, the support column sets up between kettle cover and bottom plate, and the both ends of support column are connected with kettle cover 2 and bottom plate respectively, test piece clamping device 8 includes holder and lower holder, the lower extreme of test piece 9 is connected with the bottom plate through holder down, the upper end of test piece 9 is connected with the lower extreme of pull rod through last holder, the upper end of pull rod is passed kettle cover 2 and is stretched out the top of kettle cover, be provided with the driving piece on the pull rod and be located kettle cover 2's top, the driving piece is used for making pull rod axial displacement to apply the pulling force to the test piece.
The upper clamping member and the lower clamping member have the same structure, and only the structure of the upper clamping member is described in detail herein, the upper clamping member includes a connecting member and a locking ring 6, the lower end of the connecting member is used for connecting with a test piece, the upper end of the connecting member is connected with the lower end of the locking ring 6 through a pin shaft, and the upper end of the locking ring is connected with the lower end of the pull rod through a thread.
The lower clamping piece is different from the upper clamping piece in that a stud is arranged on the bottom plate, a fine locking ring of the lower clamping piece is connected with the stud, and the top of a connecting piece of the lower clamping piece is connected with the lower end of the test piece.
Referring to fig. 3 and 4, the test piece is divided into two types, one type is a flat test piece, the other type is a cylindrical test piece, and the corresponding connecting piece is also divided into two types, when the flat test piece is tested, the end part of the test piece is fixed with the connecting piece through a positioning pin; when testing the cylinder test piece, the connecting piece passes through the screw thread and fixes with the tip of test piece.
The driving piece is an adjusting knob, the adjusting knob is connected with the upper end of the pull rod through threads, and when the test piece is pulled, the adjusting knob is rotated to enable the screw rod to move up and down along the axial direction of the screw rod, so that the pulling force of the test piece is adjusted.
The number of the supporting columns is 2-4, preferably 3, and the supporting columns are uniformly distributed on the circumference.
Be provided with the trachea in the air vent of kettle cover, tracheal inlet port is located kettle cover 2's outside to be connected with the air supply through manometer 3, tracheal venthole downwardly extending, when kettle cover and autoclave body 1 are connected, the venthole just to the test piece, to test piece jet gas.
The gas is hydrogen.
The top of the high-temperature and high-pressure kettle body 1 is provided with an inwards concave embedded step, the bottom surface of the kettle cover 2 is provided with a boss matched with the embedded step, the top of the high-temperature and high-pressure kettle body 1 is provided with a sealing structure, during testing, the kettle cover 2 is arranged on the high-temperature and high-pressure kettle body 1, the boss is located in the embedded step, and the kettle cover 2 is connected with the high-temperature and high-pressure kettle body 1 in a sealing mode through the sealing structure.
The high-temperature high-pressure kettle body 1 and the kettle cover 2 are connected through a plurality of bolts, so that the sealing performance under the high-pressure environment is guaranteed, and the safety of the experiment is improved.
The heating device is arranged on the side wall of the high-temperature high-pressure kettle body 1, the test piece 9 is heated by adopting a heat radiation method, the heating device is a heating coil 7, and the test piece is positioned at the central position of the heating coil when being heated, so that the test piece is uniformly heated.
The bottom of the high-temperature high-pressure kettle body 1 is provided with an air exhaust hole for vacuumizing the interior of the high-temperature high-pressure kettle body.
The kettle cover and the high-temperature high-pressure kettle body are made of 316L.
During the test, the heating temperature is 300 degrees, and the hydrogen pressure is less than 10 MPa.
The following is a detailed description of the testing method of the high-temperature high-pressure gas hydrogen charging testing device provided by the utility model, and the specific steps are as follows:
1. and selecting a corresponding test piece clamping device according to different test pieces, and respectively connecting the two ends of the test piece with the upper clamping piece and the lower clamping piece.
2. And stretching the test piece and the stretching device into the high-temperature high-pressure kettle body 1, and connecting the kettle cover 2 with the high-temperature high-pressure kettle body 1 through bolts.
3. The high-temperature autoclave body was evacuated for 2 hours to ensure the degree of vacuum.
4. Electrifying the heating coil to heat the heating coil to a set temperature, and controlling the temperature by the thermocouple sensor;
5. introducing hydrogen through the vent hole 4, adjusting the pressure gauge 3 to the hydrogen pressure required by the test, closing the hydrogen flow valve, placing the lower end of the vent hole in the heating coil and facing the working surface of the test piece, as shown in figure 2, so as to ensure that the test environment of the test piece is the same as the real service environment;
6. and applying tension to the test piece through the pull rod.
7. Setting and recording test time according to requirements, and relieving pressure and cooling after the test is finished;
8. and opening the high-temperature high-pressure kettle, and taking out the test piece.
The utility model discloses a high temperature high pressure gas filling hydrogen test device and test method can simulate the temperature 300 ℃ hydrogen service environment under the pressure 10MPa, provides the test technique for the performance of evaluation hydrogen storage hydrogen transportation material and supports.
The above contents are only for explaining the technical idea of the present invention, and the protection scope of the present invention cannot be limited thereby, and any modification made on the basis of the technical solution according to the technical idea of the present invention all fall within the protection scope of the claims of the present invention.
Claims (10)
1. The high-temperature high-pressure gas hydrogen filling test device is characterized by comprising a high-temperature high-pressure kettle body (1), a kettle cover (2), a stretching device and a heating device;
the heating device is arranged in the high-temperature high-pressure kettle body (1), the stretching device is arranged at the bottom of the kettle cover (2), and the stretching device comprises a bottom plate, a support column and a pull rod;
the bottom plate is connected with the kettle cover (2) through the support columns and is positioned at the bottom of the kettle cover, the pull rod is arranged on the kettle cover, the lower end of the pull rod extends to one side of the bottom plate, the pull rod and the bottom plate are used for being connected with two ends of a test piece, and the pull rod is used for applying tension to the test piece;
during the test, the stretching device is positioned in the high-temperature high-pressure kettle body (1), the kettle cover seals the high-temperature high-pressure kettle body (1), and the kettle cover (2) is provided with the vent hole (4) for inputting hydrogen into the high-temperature high-pressure kettle body (1).
2. A high-temperature high-pressure gas hydrogen charging test device as claimed in claim 1, wherein the pull rod and the bottom plate are connected with two ends of the test piece through a test piece clamping device (8);
the test piece clamping device comprises clamping pieces with the same structure, each clamping piece comprises a connecting piece and a locking ring (6), one end of each connecting piece is used for being connected with a test piece, the other end of each connecting piece is connected with one end of each locking ring (6) through a pin shaft, and the other end of each locking ring is connected with a pull rod or a base plate through threads.
3. The high-temperature high-pressure gas hydrogen filling test device as claimed in claim 1, wherein the upper end of the pull rod passes through the kettle cover, the pull rod is provided with a driving member and is located at the top of the kettle cover, and the driving member is used for enabling the pull rod to move axially to apply a tensile force to the test piece.
4. The high-temperature high-pressure gas charging test device as claimed in claim 3, wherein the driving member is an adjusting knob, and the adjusting knob is connected with the upper end of the pull rod through threads.
5. The apparatus according to claim 1, wherein the number of the support columns is plural, and the support columns are uniformly distributed on the circumference.
6. The high-temperature high-pressure gas hydrogen filling test device as claimed in claim 1, wherein the vent hole of the kettle cover is provided with a gas pipe, a gas inlet hole of the gas pipe is positioned at the top of the kettle cover (2), a gas outlet hole is positioned at the bottom of the kettle cover and extends downwards, and when the kettle cover is connected with the high-temperature high-pressure kettle body (1), the gas outlet hole is opposite to the test piece.
7. A high-temperature high-pressure gas hydrogen charging test device as claimed in claim 6, wherein the gas pipe is connected with a gas source through a pressure gauge (3).
8. The high-temperature high-pressure gas hydrogen filling test device according to claim 1, wherein the top of the high-temperature high-pressure kettle body (1) is provided with an inwards concave embedded step, the bottom surface of the kettle cover (2) is provided with a boss matched with the embedded step, and the top of the high-temperature high-pressure kettle body (1) is provided with a sealing structure.
9. The high-temperature high-pressure gas hydrogen filling test device according to claim 1, wherein the bottom of the high-temperature high-pressure kettle body (1) is provided with a pumping hole for vacuumizing the interior thereof.
10. A high-temperature high-pressure gas charging test device as claimed in claim 1, wherein the heating device is a heating coil (7), and the test piece is positioned in the center of the heating coil when being heated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021815281.3U CN212674611U (en) | 2020-08-26 | 2020-08-26 | High-temperature high-pressure gas hydrogen charging test device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021815281.3U CN212674611U (en) | 2020-08-26 | 2020-08-26 | High-temperature high-pressure gas hydrogen charging test device |
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| Publication Number | Publication Date |
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| CN212674611U true CN212674611U (en) | 2021-03-09 |
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| CN202021815281.3U Active CN212674611U (en) | 2020-08-26 | 2020-08-26 | High-temperature high-pressure gas hydrogen charging test device |
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- 2020-08-26 CN CN202021815281.3U patent/CN212674611U/en active Active
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