A hydrogen dryer for power plants

Abstract

This utility model relates to the field of power plant equipment technology, and in particular to a hydrogen dryer for power plants. This utility model provides a hydrogen dryer for power plants, including a housing, a sealing plate, a controller, an inlet pipe, a solenoid valve, and an outlet pipe. A sealing plate is fixedly connected to the front of the housing, and a controller is installed in front of the sealing plate. An inlet pipe is fixedly connected between the left and right sides of the housing, and a solenoid valve is installed on the inlet pipe. The solenoid valve is electrically connected to the controller. An outlet pipe is fixedly connected to the top of the housing. A gear and rack transmission system links the baffle plate with a second connecting frame, ensuring that the adsorbent falls evenly into the filter screen. After the adsorbent becomes saturated, the controller again controls the motor output shaft to rotate, adding new adsorbent. This achieves quantitative supply and precise control of the adsorbent, solving the problem that existing hydrogen drying devices cannot achieve quantitative supply and precise control of the adsorbent, leading to adsorbent waste or insufficient supply, thus affecting the hydrogen drying effect.

Description

Technical Field

[0001] This utility model relates to the field of power plant equipment technology, and in particular to a power plant hydrogen dryer. Background Technology

[0002] Hydrogen (H2) is a colorless, odorless, and non-toxic gas. It is the lightest element in the periodic table. Its molecular structure is simple, consisting of two hydrogen atoms bonded by covalent bonds. It is chemically reactive and readily reacts with many elements. In the operation of power plant generators, hydrogen, as a cooling medium, needs to be kept at extremely low humidity (usually requiring a dew point ≤ -50℃). Otherwise, moisture can cause the generator insulation to age, the iron core to rust, and even lead to the risk of hydrogen explosion.

[0003] Although existing hydrogen drying devices are widely used, they still have some drawbacks and limitations. For example, existing hydrogen drying devices cannot achieve quantitative supply and precise control of adsorbent, resulting in adsorbent waste or insufficient supply, which affects the hydrogen drying effect.

[0004] Therefore, it is necessary to design a hydrogen dryer for power plants. Utility Model Content

[0005] In order to overcome the shortcomings of existing hydrogen drying devices that cannot achieve quantitative supply and precise control of adsorbent, resulting in adsorbent waste or insufficient supply and affecting the hydrogen drying effect, this utility model provides a power plant hydrogen dryer.

[0006] The technical solution is as follows: A hydrogen dryer for power plants includes a casing, a sealing plate, a controller, an inlet pipe, a solenoid valve, an outlet pipe, a support frame, a first connecting frame, a mesh screen, a storage tank, a motor, gears, a rack, a baffle, a connecting block, and a second connecting frame. A sealing plate is fixedly connected to the front of the casing, and a controller is installed in front of the sealing plate. An inlet pipe is fixedly connected between the left and right sides of the casing, and a solenoid valve is installed on the inlet pipe. The solenoid valve is electrically connected to the controller. An outlet pipe is fixedly connected to the top of the casing. Symmetrically distributed support frames are fixedly connected to both the left and right sides inside the casing, and the bottoms of the two support frames are slidably connected. There is a first connecting frame, which is slidably connected to a sealing plate. A mesh screen is fixedly connected inside the first connecting frame. A storage box is fixedly connected to the top of the machine housing. A motor is installed on the rear side of the machine housing and is electrically connected to a controller. The motor output shaft passes through the rear of the machine housing and is rotatably connected to it. A gear is connected to the motor output shaft and is rotatably connected to the machine housing. A rack is slidably connected inside the rear side of the machine housing. The gear and rack mesh with each other. A second connecting frame is slidably connected inside the storage box. A baffle is fixedly connected to the top right side of the second connecting frame and is slidably connected to the storage box. A connecting block is fixedly connected between the rack and the baffle.

[0007] Furthermore, it also includes a sealing cap and scale lines, with the sealing cap slidably connected to the top of the storage box and scale lines fixedly connected to the front side of the storage box.

[0008] Furthermore, it also includes a fan and a return pipe. The fan is installed at the lower end of the casing, and the return pipe is fixedly connected to the bottom of the fan. The air outlet of the fan is connected to the return pipe.

[0009] Furthermore, it also includes a humidity sensor, which is installed inside the rear of the housing and is electrically connected to the controller.

[0010] Furthermore, the sealing plate is made of transparent material.

[0011] Furthermore, the mesh is tilted from back to front.

[0012] Beneficial effects: 1. The baffle and the second connecting frame are linked by the gear and rack transmission, so that the adsorbent falls evenly into the mesh. After the adsorbent is saturated, the controller controls the motor output shaft to rotate again to add new adsorbent, so as to realize the quantitative supply and precise control of adsorbent. This solves the problem that the existing hydrogen drying device cannot realize the quantitative supply and precise control of adsorbent, resulting in adsorbent waste or insufficient supply, which affects the hydrogen drying effect.

[0013] 2. This utility model, by setting up a fan and a return pipe, uses the fan to transport the hydrogen gas that has returned or remained in the lower part of the casing upward through the return pipe, ensuring that the hydrogen gas in the casing can fully contact the adsorbent and improve the drying effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural diagram of the sealing cap, scale lines, and fan components of this utility model.

[0016] Figure 3 This is a three-dimensional structural diagram of the first connecting frame and the mesh component of this utility model.

[0017] Figure 4 This is a three-dimensional structural diagram of the components of this utility model, including the housing, air inlet pipe, and air outlet pipe.

[0018] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0019] Figure 6 This is a three-dimensional structural diagram of the rack, baffle, and connecting block components of this utility model.

[0020] Component names and serial numbers in the diagram: 1: Housing, 2: Sealing plate, 3: Controller, 4: Inlet pipe, 5: Solenoid valve, 6: Outlet pipe, 7: Support frame, 8: First connecting frame, 9: Strainer, 10: Storage box, 11: Motor, 12: Gear, 13: Rack, 14: Baffle, 15: Connecting block, 16: Second connecting frame, 17: Sealing cover, 18: Scale line, 19: Fan, 20: Return pipe, 21: Humidity sensor. Detailed Implementation

[0021] Example: A hydrogen dryer for power plants, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 ,and Figure 6 As shown, the assembly includes a casing 1, a sealing plate 2, a controller 3, an air inlet pipe 4, a solenoid valve 5, an air outlet pipe 6, a support frame 7, a first connecting frame 8, a strainer 9, a storage bin 10, a motor 11, a gear 12, a rack 13, a baffle 14, a connecting block 15, and a second connecting frame 16. A sealing plate 2 is welded to the front of the casing 1. The sealing plate 2 is made of transparent material, allowing operators to observe the adsorption degree of the adsorbent inside the casing in real time. The controller 3 is installed on the front of the sealing plate 2. An air inlet pipe 4 is welded between the left and right sides of the casing 1, and a solenoid valve 5 is installed on the air inlet pipe 4. The solenoid valve 5 is electrically connected to the controller 3. An air outlet pipe 6 is welded to the top of the casing 1. Symmetrically distributed support frames 7 are welded to both the left and right sides inside the casing 1. A first connecting frame 8 is slidably connected between the bottoms of the two support frames 7. A first connecting frame 8 is slidably connected to a sealing plate 2. A mesh 9 is welded inside the first connecting frame 8, and the mesh 9 is inclined from back to front. A storage box 10 is welded to the top inside the housing 1. A motor 11 is installed on the rear side of the housing 1. The motor 11 is electrically connected to the controller 3. The output shaft of the motor 11 passes through the rear of the housing 1 and is rotatably connected to it. A gear 12 is connected to the output shaft of the motor 11 and is rotatably connected to the housing 1. A rack 13 is slidably connected to the rear side inside the housing 1. The gear 12 and the rack 13 mesh with each other. A second connecting frame 16 is slidably connected inside the storage box 10. A baffle 14 is welded to the top right side of the second connecting frame 16 and is slidably connected to the storage box 10. A connecting block 15 is welded between the rack 13 and the baffle 14.

[0022] like Figure 2 , Figure 3 and Figure 6 As shown, it also includes a sealing cap 17 and a scale line 18. The sealing cap 17 is slidably connected to the top of the storage tank 10, and the scale line 18 is fixed to the front side of the storage tank 10, so that the operator can intuitively grasp the remaining amount of adsorbent and replenish it in a timely manner.

[0023] like Figure 2As shown, it also includes a fan 19, a return pipe 20, and a humidity sensor 21. The fan 19 is installed at the lower end of the inside of the housing 1, and the return pipe 20 is welded to the bottom of the fan 19. The air outlet of the fan 19 is connected to the return pipe 20 to ensure that the hydrogen in the housing 1 can fully contact the adsorbent and improve the drying effect. The humidity sensor 21 is installed on the rear side of the inside of the housing 1 and is electrically connected to the controller 3.

[0024] When cooling of the internal cooling mechanism of generator 11 is required, first lift the sealing cover 17 to open the storage tank 10, pour the adsorbent into the storage tank 10, and the adsorbent falls to the bottom of the storage tank 10 under gravity. After storage, put the sealing cover 17 back to close the storage tank 10. Then, start motor 11 through controller 3. The output shaft of motor 11 rotates, driving gear 12 to rotate. Since gear 12 and rack 13 mesh with each other, the rotation of gear 12 drives rack 13 to slide to the left on the housing 1, thereby driving baffle 14 and second connecting frame 16 to move to the left synchronously through connecting block 15. As the second connecting frame 16 moves, the adsorbent in the frame 16 falls evenly onto the upper surface of the strainer 9 under the action of gravity. The baffle 14 blocks the outlet of the storage frame, preventing the remaining adsorbent from falling further, thus achieving a quantitative supply of adsorbent. Then, the output shaft of the motor 11 is controlled to rotate in the opposite direction, driving the baffle 14 and the second connecting frame 16 to return to their original positions. The remaining adsorbent in the storage box 10 falls back into the second connecting frame 16 without being blocked by the baffle 14. Subsequently, the solenoid valve 5 is opened by the controller 3, and hydrogen enters the housing 1 along the inlet pipe 4. Since the density of hydrogen is less than that of air, it will naturally flow upward.

[0025] After hydrogen is introduced, the solenoid valve 5 is closed, and the blower 19 is started by the controller 3. The blower 19 transports the hydrogen that has returned or remained in the lower part of the casing 1 upward through the return pipe 20. The upward-flowing hydrogen passes through the adsorbent on the mesh 9. The adsorbent adsorbs the moisture in the hydrogen through its porous structure, thus drying the hydrogen. The humidity sensor 21 can monitor the humidity of the hydrogen in the upper part of the casing 1 in real time and transmit the data to the controller 3. When the humidity is higher than the set threshold, it means that some of the adsorbent has been saturated. The controller 3 will control the output shaft of the motor 11 to rotate again and add adsorbent to the mesh 9 again. The operator can observe the degree of adsorption of the adsorbent in the casing 1 through the transparent sealing plate 2. The remaining amount of adsorbent in the storage tank 10 can be intuitively grasped through the scale line 18. If the remaining amount is insufficient, the sealing cover 17 needs to be opened in time to add more.

[0026] After drying, the hydrogen is discharged through the outlet pipe 6 and finally delivered to the generator 11 cooling system. After all the hydrogen has cooled down, the fan 19 is turned off, the first connecting frame 8 is pulled out, the saturated adsorbent is removed and pushed back, thus completing the use of this device.

Claims

1. A hydrogen dryer for power plants, characterized in that, The assembly includes a housing (1), a sealing plate (2), a controller (3), an air inlet pipe (4), a solenoid valve (5), an air outlet pipe (6), a support frame (7), a first connecting frame (8), a strainer (9), a storage bin (10), a motor (11), a gear (12), a rack (13), a baffle (14), a connecting block (15), and a second connecting frame (16). A sealing plate (2) is fixedly connected to the front of the housing (1), and a controller (3) is installed on the front of the sealing plate (2). An air inlet pipe (4) is fixedly connected between the left and right sides of the housing (1), and a solenoid valve (5) is installed on the air inlet pipe (4). The solenoid valve (5) is electrically connected to the controller (3). An air outlet pipe (6) is fixedly connected to the top of the housing (1). Symmetrically distributed support frames (7) are fixedly connected to the left and right sides inside the housing (1). A first connecting frame (8) is slidably connected between the bottoms of the two support frames (7). The connecting frame (8) is slidably connected to the sealing plate (2). A mesh (9) is fixedly connected inside the first connecting frame (8). A storage box (10) is fixedly connected to the top inside the housing (1). A motor (11) is installed on the rear side of the housing (1). The motor (11) is electrically connected to the controller (3). The output shaft of the motor (11) passes through the rear of the housing (1) and is rotatably connected to it. A gear (12) is connected to the output shaft of the motor (11). The gear (12) is rotatably connected to the housing (1). A rack (13) is slidably connected to the rear side inside the housing (1). The gear (12) and the rack (13) mesh with each other. A second connecting frame (16) is slidably connected inside the storage box (10). A baffle (14) is fixedly connected to the top right side of the second connecting frame (16). The baffle (14) is slidably connected to the storage box (10). A connecting block (15) is fixedly connected between the rack (13) and the baffle (14).

2. A power plant hydrogen dryer as claimed in claim 1, characterized in that It also includes a sealing cap (17) and a scale line (18). The sealing cap (17) is slidably connected to the top of the storage box (10), and the scale line (18) is fixedly connected to the front side of the storage box (10).

3. A power plant hydrogen dryer as claimed in claim 2, characterized in that It also includes a fan (19) and a return pipe (20). The fan (19) is installed at the lower end of the casing (1). The bottom of the fan (19) is fixedly connected to the return pipe (20). The air outlet of the fan (19) is connected to the return pipe (20).

4. A power plant hydrogen dryer as claimed in claim 3, characterized in that It also includes a humidity sensor (21), which is installed on the rear side inside the housing (1) and is electrically connected to the controller (3).

5. A power plant hydrogen dryer as claimed in claim 4, characterized in that The sealing plate (2) is made of transparent material.

6. A power plant hydrogen dryer as claimed in claim 5, characterized in that The leaked net (9) is tilted from back to front.

Images