Hydrogen storage performance testing device for magnetic field driving

Abstract

A hydrogen storage performance testing device for magnetic field driving comprises a cabinet body, a main gas pipe is arranged in an upper cavity of the cabinet body, and a temperature sensor and a pressure sensor are arranged on the main gas pipe; an air inlet pipe, a breather pipe and an exhaust pipe are connected to the main air pipe, an air inlet valve is mounted on the air inlet pipe, and the air inlet pipe is led out from one side of the cabinet body; a ventilation valve is mounted on the ventilation pipe, and the lower end of the ventilation pipe is inserted into the lower cavity of the cabinet body; the exhaust pipe is provided with an exhaust valve, and one end of the exhaust pipe is led out from the other side of the cabinet body; a magnetic field generator is arranged in a lower cavity of the cabinet body, and a reactor is inserted into a center hole of the magnetic field generator; the reactor is formed by hermetically connecting a cylinder and an upper cover, and a thermocouple and a magnetic field sensor which are inserted into the cylinder are fixed on the upper cover; and the lower end of the breather pipe is connected with an air inlet valve arranged on the upper cover. The device can change the magnetic domain distribution in the internal structure of the material added into the reactor, reduce the adsorption energy barrier and realize the hydrogen storage performance detection of the material.

Description

TECHNICAL FIELD

[0001] The utility model relates to a test device, especially a hydrogen storage performance test device for magnetic field driving. BACKGROUND

[0002] As a clean and efficient energy form, hydrogen energy has been the focus of research in its storage technology. In the field of solid-state hydrogen storage, researchers are committed to developing hydrogen storage materials with high energy density, good safety and easy operability. In order to improve the hydrogen storage performance, researchers mainly from two aspects of material modification and external environmental conditions. Although some progress has been made in the aspect of material modification, it is still difficult to meet the needs of practical application. In the aspect of external environmental conditions, the method of improving the hydrogen storage performance by changing the temperature, pressure and other conditions mostly depends on relatively harsh conditions, which limits the wide application of solid-state hydrogen storage technology. As a potential driving force, magnetic field has attracted widespread attention.

[0003] In the research of hydrogen storage materials driven by magnetic field, the theoretical basis shows that under a certain magnetic field, hydrogen molecules and part of the materials will be affected by the magnetic field force, which will affect the arrangement of micro molecules, and thus may improve the hydrogen storage performance of the material. However, the research in this field is still in its infancy, and there is a lack of corresponding detection means to verify the specific influence of magnetic field on the performance of hydrogen storage materials. At present, although there are some devices for testing the performance of hydrogen storage materials, most of these devices are for traditional hydrogen storage methods such as gaseous or liquid hydrogen storage, and do not consider the need for hydrogen storage performance testing under the driving of magnetic field.

[0004] Therefore, in order to promote the research of hydrogen storage materials driven by magnetic field, it is of great significance to develop a new type of test device that can test the hydrogen storage capacity of hydrogen storage materials under the driving of magnetic field, to fill the gap of hydrogen storage performance test device of solid-state hydrogen storage materials under the action of external field, and to promote the research of hydrogen storage materials driven by magnetic field. UTILITY MODEL CONTENT

[0005] The technical problem to be solved by the utility model is to provide a hydrogen storage performance test device for magnetic field driving, which can change the magnetic domain distribution in the internal structure of the material added into the reactor, reduce the adsorption energy barrier, and realize the detection of the hydrogen storage performance of the material.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] The utility model provides a kind of hydrogen storage performance testing device for magnetic field driving, including cabinet, cavity is arranged by partition in the cabinet and is arranged in upper and lower, a main gas pipe is provided in the upper cavity of cabinet, temperature sensor and pressure sensor are provided on the main gas pipe, for detecting the temperature and pressure in the main gas pipe respectively;Gas inlet pipe, air pipe and gas extraction pipe are connected on the main gas pipe, gas inlet valve is installed on the gas inlet pipe and the gas inlet pipe is led out from the side of cabinet, for external connection hydrogen storage tank;Air valve is installed on the air pipe and the lower end of air pipe is inserted into the lower cavity of cabinet, for hydrogen in the main gas pipe is passed into reactor in the lower cavity;Gas extraction valve is installed on the gas extraction pipe and one end of gas extraction pipe is led out from the other side of cabinet, for external connection vacuum pump to main gas pipe is extracted vacuum;

[0008] Magnetic field generator is provided in the lower cavity of cabinet, the reactor is inserted in the center hole of magnetic field generator, for placing material to be tested;The reactor is sealedly connected by barrel and upper cover, thermocouple and magnetic field sensor inserted into barrel are fixed on the upper cover, for detecting the temperature and magnetic field intensity in the reactor respectively;The lower end of air pipe is connected with the gas inlet valve provided on the upper cover.

[0009] As further preferred, the middle part of the cabinet is further provided with a middle cavity, a first power module and a controller are provided in the middle cavity, the first power module is electrically connected with the controller and is electrically connected with each sensor through the controller;The signal output ends of the temperature sensor, the pressure sensor, the thermocouple and the magnetic field sensor are respectively connected in communication with the controller.

[0010] As further preferred, three LED display screens are provided in front of the upper cavity of the cabinet, the three LED display screens are respectively connected with the signal output end of the controller, for respectively displaying the pressure in the main gas pipe and the temperature and magnetic field size in the reactor.

[0011] As further preferred, a second power module and a power controller are provided in the middle cavity and are connected with each other, the second power module is electrically connected with the magnetic field generator, and the power controller leads out control buttons in front of the middle cavity of the cabinet, for controlling the output current size of the second power module.

[0012] As further preferred, the magnetic field generator is a solenoid type magnetic field generator.

[0013] As further preferred, the controller includes a signal acquisition module and a control module, the signal output ends of the temperature sensor, the pressure sensor, the thermocouple and the magnetic field sensor are connected with the control module through the signal acquisition module, and the control module adopts STM32H750VBT6 single-chip microcomputer control.

[0014] As a further preferred, an exhaust pipe is arranged on the main air pipe, an exhaust valve is arranged on the exhaust pipe, and an outer end of the exhaust pipe is led out from the other side of the cabinet body for exhausting the main air pipe.

[0015] The utility model discloses the beneficial effect is:

[0016] 1. The structure is reasonable, the power current size of magnetic field generator is changed to control the magnetic force size that magnetic field generator generates, and then the magnetic domain distribution in the internal structure of the material that is added in the reactor is changed, which causes the adsorption energy size of the material and hydrogen adsorption to change; the temperature and hydrogen pressure in the main air pipe are detected by temperature sensor and pressure sensor respectively, and the temperature of the environment of the material in the reactor is detected by thermocouple as initial data, and the hydrogen absorption and release amount of the material under the action of the magnetic field can be obtained by data processing and analysis of the initial data by the external computer;

[0017] 2. The device can be used for universal testing of various materials, and can produce a certain force on the material itself and hydrogen molecules under the action of the magnetic field, reduce the adsorption energy barrier, and realize the high-performance hydrogen storage and detection function of the material. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the structural schematic diagram of the utility model.

[0019] Figure 2 It is Figure 1 the rear view of

[0020] Figure 3 It is the structural section view of magnetic field generator.

[0021] Figure 4 It is the circuit block diagram of the utility model.

[0022] In the drawing: cabinet body 1, upper cavity 101, middle cavity 102, lower cavity 103, magnetic field generator 2, reactor 3, air inlet valve 4, power module 5, air inlet pipe 6, air pipe 7, pressure sensor 8, temperature sensor 9, air exhaust pipe 10, exhaust pipe 11, main air pipe 12, controller 13, power switch 14, air inlet valve 15, air valve 16, LED display screen 17, air exhaust valve 18, exhaust valve 19, power controller 20, magnetic field sensor 21, thermocouple 22. DETAILED DESCRIPTION

[0023] The embodiments of the present patent are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present patent, and cannot be understood as a limitation of the present patent.

[0024] Reference Figures 1 to 4 The utility model relates to a kind of hydrogen storage performance testing devices for magnetic field driving, including cabinet 1, upper cavity 101, middle cavity 102 and lower cavity 103 being arranged in upper and lower in cabinet 1 by partition, there is a main gas pipe 12 in the upper cavity of cabinet 1 bottom fixed, temperature sensor 9 and pressure sensor 8 are installed on main gas pipe 12, for detecting the temperature and pressure in main gas pipe 12 respectively;Gas inlet pipe 6, air pipe 7 and gas extraction pipe 10 are connected on main gas pipe 12, gas inlet valve 15 is installed on gas inlet pipe 6 and gas inlet pipe 6 is led out from one side of cabinet 1, for external hydrogen storage tank;Air valve 16 is installed on air pipe 7 and air pipe 7 lower end is inserted into the lower cavity of cabinet 1, for hydrogen in main gas pipe 12 is passed into reactor 3 in lower cavity;Gas extraction valve 18 is installed on gas extraction pipe 10 and one end of gas extraction pipe 10 is led out from the other side of cabinet 1, for external vacuum pump to main gas pipe 12 is extracted vacuum.

[0025] Gas outlet pipe 11 is also connected on main gas pipe 12, and gas outlet valve 19 is provided on gas outlet pipe 11, and the outer end of gas outlet pipe 11 is led out from the other side of cabinet 1, for emptying main gas pipe 12. The gas inlet valve, air valve, gas extraction valve and gas outlet valve are all manual valves, and the control handle is led out from the front of cabinet 1, so as to control conveniently.

[0026] Magnetic field generator 2 is fixed in the lower cavity of cabinet 1, and the magnetic field generator 2 is a solenoid type magnetic field generator, which is composed of a solenoid 201 and a coil 202 wound on the outer wall of the solenoid. The reactor 3 is inserted into the solenoid center hole of the magnetic field generator 2 through the gap fit, for placing the material to be tested;The reactor 3 is connected by sealing pad and bolt sealing connection by circular cylinder 301 and upper cover 302, and thermocouple 22 and magnetic field sensor 21 inserted into the cylinder are sealingly fixed on the upper cover 302, for detecting the temperature and magnetic field intensity in reactor 3 respectively. The magnetic field sensor 21 adopts gauss meter magnetic field probe.

[0027] Manual air inlet valve 4 is fixed on the upper cover 302 and communicates with the inner cavity of reactor 3, and the lower end of air pipe 7 is detachably connected with the air inlet of air inlet valve 4. Ring boss is arranged in the middle of the inner wall of the solenoid of magnetic field generator 2, for supporting the inserted reactor 3.

[0028] The power module 5 and the controller 13 are fixed in the middle cavity, the power module 5 is externally connected to the power supply through the power switch 14 arranged in front of the cabinet body 1, the power module 5 comprises a first power module and a second power module, the first power module is electrically connected with the controller 13 and electrically connected with each sensor through the controller 13; the signal output ends of the temperature sensor 9, the pressure sensor 8, the thermocouple 22 and the magnetic field sensor 21 are respectively in communication connection with the controller. The output end of the second power module is electrically connected with the magnetic field generator 2 and the control end is connected with the power controller 20, the power controller 20 leads out the control button in front of the middle cavity of the cabinet body 1, which is used for controlling the output current size of the second power module.

[0029] Three LED display screens 17 are arranged in front of the upper cavity of the cabinet body 1, the three LED display screens 17 are respectively connected with the signal output end of the controller, which are used for respectively displaying the pressure in the main gas pipe 12 and the temperature and the magnetic field size in the reactor 3.

[0030] As shown in the figure, Figure 4 the controller 13 comprises a signal acquisition module and a control module integrated on a circuit board, the signal output ends of the temperature sensor 9, the pressure sensor 8, the thermocouple 22 and the magnetic field sensor 21 are connected with the control module through the signal acquisition module, the signal acquisition module is an A / D conversion module, and the control module adopts an STM32H750VBT6 single-chip microcomputer control.

[0031] In use, the upper cover of the reactor 3 is opened, the hydrogen storage material to be tested is added into the barrel body of the reactor 3, and the upper cover and the reactor 3 are installed. The power switch is turned on, the vacuum pump is turned on, the air inlet valve is opened, and the main gas pipe 12 is vacuumized; then, the air inlet valve is opened, the hydrogen in the hydrogen storage tank is filled into the main gas pipe 12, and the temperature and the hydrogen pressure in the main gas pipe 12 are detected through the temperature sensor 9 and the pressure sensor 8; when the pressure value displayed by the LED display screen reaches the required value, the air inlet valve is closed. The air inlet valve and the air inlet valve are opened, and the gas enters the inner cavity of the reactor 3. Then, the input current size of the magnetic field generator 2 is adjusted through the power controller, the magnetic field size generated by the magnetic field generator 2 is controlled, the magnetic field intensity in the reactor 3 is detected through the magnetic field sensor 21 and is displayed in real time through the corresponding LED display screen; the temperature in the reactor 3 is detected through the thermocouple 22 and is transmitted to the externally connected computer through the controller, and the computer can calculate the hydrogen absorption and release amount of the hydrogen storage material under the action of the magnetic field according to the detected pressure and temperature data and according to the ideal gas state equation.

[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A device for testing the hydrogen storage performance driven by a magnetic field, characterized in that: The cabinet body is provided with upper and lower cavities by a partition plate, a main gas pipe is arranged in the upper cavity of the cabinet body, and a temperature sensor and a pressure sensor are arranged on the main gas pipe for detecting the temperature and pressure in the main gas pipe respectively; an air inlet pipe, an air pipe and an air outlet pipe are connected to the main gas pipe, an air inlet valve is arranged on the air inlet pipe and the air inlet pipe is led out from one side of the cabinet body for connecting to a hydrogen storage tank outside; an air valve is arranged on the air pipe and the lower end of the air pipe is inserted into the lower cavity of the cabinet body for introducing hydrogen in the main gas pipe into a reactor in the lower cavity; an air outlet valve is arranged on the air outlet pipe and one end of the air outlet pipe is led out from the other side of the cabinet body for connecting to a vacuum pump outside to vacuumize the main gas pipe. A magnetic field generator is arranged in the lower cavity of the cabinet body, and the reactor is inserted into the central hole of the magnetic field generator for placing materials to be tested; the reactor is formed by sealingly connecting a cylinder body and an upper cover, and a thermocouple and a magnetic field sensor are fixed on the upper cover and inserted into the cylinder body for detecting the temperature and magnetic field strength in the reactor respectively; the lower end of the air pipe is connected to an air inlet valve arranged on the upper cover.

2. The hydrogen storage performance testing device driven by magnetic field according to claim 1, characterized in that: A middle cavity is further arranged in the middle part of the cabinet body, a first power module and a controller are arranged in the middle cavity, the first power module is electrically connected to the controller and is electrically connected to each sensor through the controller; the signal output ends of the temperature sensor, the pressure sensor, the thermocouple and the magnetic field sensor are respectively connected to the controller in communication.

3. The device for testing hydrogen storage properties driven by magnetic field according to claim 2, characterized in that Three LED display screens are arranged on the front of the upper cavity of the cabinet body, and the three LED display screens are respectively connected to the signal output end of the controller for respectively displaying the pressure in the main gas pipe and the temperature and magnetic field size in the reactor.

4. The device for testing hydrogen storage properties driven by magnetic field according to claim 2 or 3, characterized in that: A second power module and a power controller are arranged in the middle cavity and are connected to each other, the second power module is electrically connected to the magnetic field generator, and the power controller leads out control buttons on the front of the middle cavity of the cabinet body for controlling the output current of the second power module.

5. The hydrogen storage performance testing device driven by magnetic field according to claim 4, characterized in that: The magnetic field generator is a solenoid type magnetic field generator.

6. The device for testing hydrogen storage properties driven by magnetic field according to claim 2 or 3, characterized in that: The controller includes a signal acquisition module and a control module, the signal output ends of the temperature sensor, the pressure sensor, the thermocouple and the magnetic field sensor are connected to the control module through the signal acquisition module, and the control module is controlled by an STM32H750VBT6 single-chip microcomputer.

7. The device for testing hydrogen storage properties driven by magnetic field according to claim 1, characterized in that: An exhaust pipe is further arranged on the main gas pipe, an exhaust valve is arranged on the exhaust pipe, and the outer end of the exhaust pipe is led out from the other side of the cabinet body for exhausting the main gas pipe.

Images