A heat treatment device for hydrogen storage alloy powder

Abstract

This utility model discloses a heat treatment device for hydrogen storage alloy powder, relating to the technical field of hydrogen storage alloy preparation equipment. It includes a tank body with a rotating tube rotatably mounted on it, extending through both the upper and lower ends of the tank. A stirring tube is connected to the rotating tube, and an air vent is formed on the stirring tube. The bottom end of the rotating tube is connected to a first conveying tube via a connecting component. An air bladder is connected to the end of the first conveying tube furthest from the rotating tube. A solenoid valve is installed on the first conveying tube. The connecting component includes a rotary joint, one end of which is mounted on the rotating tube. This heat treatment device for hydrogen storage alloy powder, through the arrangement of the rotating tube, stirring tube, and air bladder, achieves rotary hydrogen delivery and utilizes hydrogen delivery to fully agitate the alloy particles. The combination of agitation and hydrogen delivery accelerates the ejection of hydrogen from the air vent, increasing the agitation rate of the alloy particles and improving the efficiency of the heat treatment device.

Description

Technical Field

[0001] This utility model relates to the technical field of hydrogen storage alloy preparation equipment, and in particular to a heat treatment device for hydrogen storage alloy powder. Background Technology

[0002] During the manufacturing process, hydrogen storage alloy powder needs to undergo heat treatment to optimize its performance, such as increasing hydrogen storage capacity and improving hydrogen absorption and desorption kinetics.

[0003] In existing technologies, the heat treatment devices for hydrogen storage alloy powders are usually quite independent in function. For example, the stirring mechanism and the hydrogen delivery mechanism are difficult to coordinate efficiently, which affects the efficiency of the hydrogenation reaction.

[0004] Therefore, it is necessary to propose a heat treatment device for hydrogen storage alloy powder to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a heat treatment device for hydrogen storage alloy powder, in order to solve the problem that in the prior art, the functions of heat treatment devices for hydrogen storage alloy powder are usually relatively independent, such as the difficulty in efficiently coordinating the stirring mechanism and the hydrogen delivery mechanism, which affects the efficiency of the hydrogenation reaction.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a heat treatment device for hydrogen storage alloy powder, comprising a tank body, wherein a rotating tube is rotatably disposed on the tank body, and the rotating tube passes through the upper and lower ends of the tank body;

[0007] The rotating pipe is connected to a stirring pipe, and the stirring pipe has an air groove.

[0008] The bottom end of the rotating tube is connected to a first conveying tube via a connecting component. The end of the first conveying tube away from the rotating tube is connected to an airbag. A solenoid valve is installed on the first conveying tube.

[0009] Preferably, the communication component includes a rotary joint, one end of which is mounted on a rotating pipe and the other end of which is mounted on a first conveying pipe.

[0010] Preferably, the airbag is connected to a second delivery pipe for delivering hydrogen.

[0011] Preferably, multiple stirring tubes are provided, and the multiple stirring tubes are evenly distributed.

[0012] Preferably, multiple air ducts are provided.

[0013] Preferably, a one-way valve is installed inside the air duct.

[0014] Preferably, a motor is fixedly connected to the top of the tank, and the rotating tube is fixedly connected to the drive shaft of the motor.

[0015] Preferably, the tank body has an internal interlayer, and a heating device is installed inside the interlayer.

[0016] Preferably, a pressure gauge is installed on the tank body, and a support column is installed at the bottom of the tank body, with multiple support columns provided.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] 1. This utility model achieves the rotary delivery of hydrogen by setting up structures such as a rotating tube, a stirring tube, and an air bag. The hydrogen delivery makes the alloy particles fully agitated. The combination of stirring and agitation with hydrogen delivery can accelerate the outward ejection of hydrogen from the air duct, increase the agitation rate of the alloy particles, and improve the efficiency of the heat treatment device.

[0019] 2. When hydrogen gas acts on alloy particles and causes them to agitate, the hydrogen gas can directly react with the alloy particles. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the heat treatment device for hydrogen storage alloy powder according to this utility model.

[0021] Figure 2 This is a cross-sectional structural schematic diagram of the heat treatment device for hydrogen storage alloy powder of this utility model.

[0022] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0023] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point B.

[0024] In the diagram: 1. Tank; 2. Rotary pipe; 3. Stirring pipe; 4. Air duct; 5. One-way valve; 6. Rotary joint; 7. First conveying pipe; 8. Airbag; 9. Second conveying pipe; 10. Solenoid valve; 11. Jacket; 12. Heating equipment; 13. Motor; 14. Support column; 15. Pressure gauge. Detailed Implementation

[0025] This utility model provides, for example Figures 1-4 The heat treatment device for hydrogen storage alloy powder shown includes a tank 1, with a support column 14 installed at the bottom end of the tank 1. Multiple support columns 14 are provided and are evenly distributed around the axis of the tank 1 to support the tank 1.

[0026] Meanwhile, a feed cylinder is provided at the top of tank 1, and a discharge cylinder is provided at the bottom of tank 1. Both the feed cylinder and the discharge cylinder are equipped with electric control valves. Raw materials are added into tank 1 through the feed cylinder, and after heat treatment, they are discharged through the discharge cylinder.

[0027] The tank 1 is equipped with a pressure gauge 15 and a thermometer. When hydrogen is introduced and heated, the temperature and pressure inside the tank 1 are higher than those outside. The pressure gauge 15 and the thermometer can display the pressure and temperature inside the tank 1 in real time, so that the pressure and temperature inside the tank 1 can be manually controlled to be within a stable range and at the same time within a safe range, thus ensuring the stability and safety of the heat treatment.

[0028] Meanwhile, a pressure relief mechanism, including a pressure relief valve and other structures, can be installed on the top of the tank 1 to discharge excess gas in conjunction with the pressure gauge 15.

[0029] A rotating tube 2 is rotatably mounted on the tank body 1, and the rotating tube 2 passes through the upper and lower ends of the tank body 1. A motor 13 is fixedly connected to the top of the tank body 1, and the rotating tube 2 is fixedly connected to the drive shaft of the motor 13. The motor 13 drives the rotating tube 2 to rotate, and the motor 13 is connected to the factory's power supply.

[0030] The rotating tube 2 is connected to a stirring tube 3. Multiple stirring tubes 3 are provided and evenly distributed. The motor 13 drives the rotating tube 2 to rotate, and the rotating tube 2 drives the stirring tubes 3 to rotate. Hydrogen gas is introduced into the inside of the tank 1.

[0031] The tank 1 has an inner jacket 11, and a heating device 12 is installed inside the jacket 11. The heating device 12 can use, but is not limited to, structures such as electric heating wires, to provide heat, which can promote the hydrogenation reaction of the alloy particles.

[0032] In practical applications, alloy particles are poured into tank 1 from the feed cylinder, and hydrogen is injected into tank 1 at the same time. Then, the heating device 12 is turned on to provide heat, and the motor 13 is started. The motor 13 drives the rotating tube 2 to rotate, and the rotating tube 2 drives the stirring tube 3 to rotate, stirring the alloy particles in tank 1 so that the alloy particles come into contact with hydrogen and react. After the reaction is completed, the discharge cylinder is opened, and the hydrogenated alloy particles flow out from the discharge cylinder. The hydrogenated alloy particles will undergo hydrogen embrittlement and can be easily crushed to form hydrogen storage alloy powder.

[0033] The subsequent dehydrogenation and deoxygenation reactions are carried out in sequence. Hydrogenation, dehydrogenation and deoxygenation are all common existing technologies, and will not be described in detail here.

[0034] To ensure sufficient contact between hydrogen and alloy particles, the stirring tube 3 is provided with air ducts 4, and multiple air ducts 4 are provided; a one-way valve 5 is installed inside the air duct 4, which allows hydrogen to be sprayed out from the air duct 4 and prevents alloy particles from entering the interior of the stirring tube 3 from the air duct 4.

[0035] The bottom end of the rotating pipe 2 is connected to the first delivery pipe 7 via a connecting component. The end of the first delivery pipe 7 away from the rotating pipe 2 is connected to an air bag 8. The air bag 8 is made of rubber. A solenoid valve 10 is installed on the first delivery pipe 7. The connecting component includes a rotary joint 6. One end of the rotary joint 6 is installed on the rotating pipe 2, and the other end of the rotary joint 6 is installed on the first delivery pipe 7. A second delivery pipe 9 for delivering hydrogen is connected to the air bag 8. The second delivery pipe 9 is connected to the hydrogen delivery pipeline of the factory.

[0036] In actual use, hydrogen is supplied to the interior of the rotating pipe 2 via the second delivery pipe 9, the air bag 8, and the first delivery pipe 7. The hydrogen enters the interior of the stirring pipe 3 and is sprayed outward through the air channel 4. When the rotating pipe 2 drives the stirring pipe 3 to stir the alloy particles in the tank 1, the wind force generated when the hydrogen is sprayed out can also act on the alloy particles. Since the stirring pipe 3 and the air channel 4 are in a rotating state, the hydrogen is transported in a rotating manner. The combination of stirring and hydrogen transport and stirring makes the alloy particles fully and evenly agitated. When the hydrogen acts on the alloy particles and causes them to agitate, the hydrogen can directly contact and react with the alloy particles, ensuring the efficiency of the reaction.

[0037] Furthermore, the solenoid valve 10 is closed, and the hydrogen gas supplied by the second delivery pipe 9 enters the interior of the gasbag 8 and accumulates inside the gasbag 8, causing the gasbag 8 to expand. After a certain period of time, the solenoid valve 10 is opened, and with the assistance of the contraction elasticity of the gasbag 8, the hydrogen gas can be accelerated to be ejected outward from the air channel 4, increasing the rate of alloy particle agitation and ensuring the reaction effect.

[0038] Then, repeat the above steps several times.

[0039] Specifically, the operator can select an airbag 8 of appropriate size and coordinate it with the solenoid valve 10 to ensure that an appropriate amount of hydrogen is accumulated inside the airbag 8 and that it will not burst. Adjustments can be made according to the specific usage conditions.

[0040] In addition, when the airbag 8 expands, the injection of hydrogen gas from the air duct 4 into the tank 1 is stopped, allowing time for the hydrogen gas to react further with the alloy particles.

[0041] This invention achieves rotary hydrogen transport by setting up structures such as a rotating pipe 2, a stirring pipe 3, and an air bag 8. The hydrogen transport allows the alloy particles to be fully agitated. The combination of stirring and hydrogen transport can accelerate the outward ejection of hydrogen from the air duct 4, increase the agitation rate of the alloy particles, and improve the efficiency of the heat treatment device.

Claims

1. A heat treatment apparatus for hydrogen storage alloy powder comprising a tank body (1), characterized by: A rotating tube (2) is rotatably mounted on the tank body (1), and the rotating tube (2) passes through the upper and lower ends of the tank body (1); The rotating pipe (2) is connected to a stirring pipe (3), and the stirring pipe (3) is provided with an air groove (4); The bottom end of the rotating tube (2) is connected to a first conveying tube (7) through a connecting component. The end of the first conveying tube (7) away from the rotating tube (2) is connected to an airbag (8). A solenoid valve (10) is installed on the first conveying tube (7).

2. The heat treatment device for hydrogen storage alloy powder according to claim 1, characterized in that: The connecting component includes a rotary joint (6), one end of which is mounted on the rotating pipe (2), and the other end of which is mounted on the first conveying pipe (7).

3. The heat treatment device for hydrogen storage alloy powder according to claim 1, characterized in that: The airbag (8) is connected to a second delivery pipe (9) for delivering hydrogen.

4. The heat treatment apparatus for hydrogen storage alloy powder according to claim 1, characterized in that: Multiple stirring tubes (3) are provided, and the multiple stirring tubes (3) are evenly distributed.

5. The heat treatment apparatus for hydrogen storage alloy powder according to claim 1, characterized in that: The air duct (4) is provided in multiple ways.

6. The heat treatment apparatus for hydrogen storage alloy powder according to claim 1, characterized in that: A one-way valve (5) is installed inside the air duct (4).

7. The heat treatment apparatus for hydrogen storage alloy powder according to claim 1, characterized in that: The top of the tank (1) is fixedly connected to a motor (13), and the rotating tube (2) is fixedly connected to the drive shaft of the motor (13).

8. The heat treatment apparatus for hydrogen storage alloy powder according to claim 1, characterized in that: The tank (1) has an inner wall with a jacket (11) and a heating device (12) is installed inside the jacket (11).

9. The heat treatment apparatus for hydrogen storage alloy powder according to claim 1, characterized in that: A pressure gauge (15) is installed on the tank (1), and a support column (14) is installed at the bottom of the tank (1). Multiple support columns (14) are provided.

Images