Hydrogen deoxidizing and drying device for hydrogen-cooled generator set

Abstract

The utility model discloses a kind of hydrogen-cooled generator set hydrogen deoxidation drying devices, belong to drying device technical field, including mounting bracket, drying tower is installed on the mounting bracket, annular cavity is opened in the tower wall inside of drying tower;Cooling mechanism, the cooling mechanism is communicated with annular cavity;Drying mechanism, the drying mechanism includes drying module, the drying module includes multiple drying frame sealingly slidably connected in drying tower inside, drying block is installed in the drying frame inside.The utility model is by being arranged drying mechanism, drying module is split into multiple drying frame, which is sequentially clamped along vertical direction, only need to reserve one to two drying frame height and operating clearance in bottom, tower body barycenter is more close to ground, reduce support cost, avoid the risk of shaking brought by high suspension simultaneously;By receiving frame and telescopic platform, drying block can be replaced by single person, and high platform is not needed to be built, shorten single maintenance time.

Description

Technical Field

[0001] This utility model belongs to the technical field of drying equipment, and in particular relates to a hydrogen deoxygenation drying device for hydrogen-cooled generator sets. Background Technology

[0002] During the operation of hydrogen-cooled generator sets, hydrogen serves as the core cooling medium. Its purity and dryness directly determine the unit's heat dissipation efficiency, insulation performance, and equipment lifespan. Excessive oxygen in the hydrogen can easily lead to safety hazards, while excessive water content may cause corrosion of internal components. Therefore, hydrogen deoxygenation and drying devices are crucial supporting equipment for ensuring stable unit operation. Traditional hydrogen deoxygenation and drying devices suffer from time-consuming desiccant regeneration, which can easily affect the continuity of hydrogen supply and increase maintenance costs.

[0003] In the existing technology, the drying chamber has a built-in desiccant and resistance heating rod for heating and regeneration, and an external cooling structure consisting of a ring tube and a cooling pipe to achieve the functions of deoxygenation and dehydration of oxygen-containing mixed gas and desiccant regeneration. In this method, the entire external piping and cooling structure of the drying chamber needs to be disassembled when maintaining or replacing the desiccant. The operation is cumbersome and time-consuming, which not only increases labor and time costs, but also further extends the downtime of the equipment. Utility Model Content

[0004] The purpose of this invention is to propose a hydrogen deoxygenation and drying device for hydrogen-cooled generator sets, in order to solve the problem that in traditional technologies, it is necessary to disassemble the entire external piping and cooling structure of the drying box when maintaining or replacing the desiccant, which is cumbersome and time-consuming.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A hydrogen deoxygenation and drying device for a hydrogen-cooled generator set, comprising: Mounting frame, on which a drying tower is mounted, and an annular cavity is formed inside the tower wall of the drying tower; Cooling mechanism, wherein the cooling mechanism is connected to the annular cavity; The drying mechanism includes a hot air assembly and a drying module. The hot air assembly is connected to a drying tower. The drying module includes multiple drying racks that are sequentially snapped together in a vertical direction. A drying block is installed inside the drying rack. Multiple electromagnetic locking pins are installed at the top and bottom of the drying tower. The drying rack has pin holes on its outer side that connect with the output pins of the electromagnetic locking pins. The annular door is telescopically and slidably connected to the bottom of the drying tower, and its inner side is in a sealing sliding fit with the outer side of the drying rack.

[0006] Preferably, the cooling mechanism includes an inlet pipe connected to the bottom of the annular cavity and an outlet pipe connected to the top of the annular cavity, and the ends of the inlet pipe and the outlet pipe away from the annular cavity are both connected to a circulation component.

[0007] Preferably, the hot air assembly includes a hot air duct connected to the bottom of the drying tower and an exhaust pipe connected to the top of the drying tower. Both the hot air duct and the exhaust pipe are equipped with control valves, and the end of the hot air duct away from the drying tower is connected to a hot air blower.

[0008] Preferably, multiple guide rails are fixedly connected to the inner side of the drying tower, and the outer side of the drying rack is in sealed sliding fit with the multiple guide rails. Multiple sealing grooves are opened on the outer side of the drying rack, and sealing rings are fixedly connected inside the sealing grooves. The multiple sealing rings are distributed alternately with the multiple guide rails.

[0009] Preferably, the mounting frame is equipped with multiple hydraulic telescopic rods, and the output ends of the multiple hydraulic telescopic rods are fixedly connected to the annular door body.

[0010] Preferably, it also includes a sliding support frame, on which a telescopic platform is installed. The telescopic platform is in clearance fit with the inner side of the annular door and is used to support the drying rack.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model, by setting up a drying mechanism, disassembles the drying module into multiple drying racks that are sequentially snapped together in the vertical direction. Only one or two drying rack heights and operating gaps need to be reserved at the bottom, making the tower's center of gravity closer to the ground, reducing support costs, and avoiding the swaying risk caused by high suspension. The drying blocks can be replaced by a single person using the receiving frame and telescopic platform, without the need to build a climbing platform, shortening the maintenance time per operation. Spare drying racks are prepared in advance, and the saturated drying blocks are directly replaced during replacement without waiting for the drying module to regenerate. Each drying rack is filled with drying blocks independently, and only the saturated bottom part of the drying blocks needs to be replaced, reducing the loss of drying blocks. The drying blocks can be disassembled and inspected individually without the need for a whole disassembly device, reducing the cost of parts replacement and maintenance.

[0012] 2. This utility model has a cooling mechanism. The drying tower has an annular cavity inside its tower wall. The cooling mechanism is connected to the circulation component through an inlet pipe and an outlet pipe. Cold water can be introduced in real time according to the working conditions to stabilize the temperature inside the drying tower within a safe range and ensure the continuous and stable operation of the device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of a hydrogen deoxygenation and drying device for a hydrogen-cooled generator set proposed in this utility model. Figure 2This is a vertical sectional view of the drying tower of a hydrogen deoxygenation drying device for a hydrogen-cooled generator set proposed in this utility model. Figure 3 This is a schematic diagram of the drying rack and drying block of a hydrogen deoxygenation drying device for a hydrogen-cooled generator set proposed in this utility model.

[0014] In the diagram: 1. Mounting frame, 2. Drying tower, 3. Annular cavity, 4. Water inlet pipe, 5. Water outlet pipe, 6. Hot air pipe, 7. Exhaust pipe, 8. Guide rail, 9. Drying rack, 10. Drying block, 11. Sealing groove, 12. Sealing ring, 13. Electromagnetic lock pin, 14. Pin hole, 15. Hydraulic telescopic rod, 16. Annular door, 17. Support frame, 18. Telescopic platform. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0016] Reference Figures 1-3 A hydrogen deoxygenation and drying device for a hydrogen-cooled generator set, comprising: Mounting frame 1, on which drying tower 2 is mounted, and an annular cavity 3 is formed inside the tower wall of drying tower 2.

[0017] The cooling mechanism is connected to the annular cavity 3. The cooling mechanism includes an inlet pipe 4 connected to the bottom of the annular cavity 3 and an outlet pipe 5 connected to the top of the annular cavity 3. The ends of the inlet pipe 4 and the outlet pipe 5 away from the annular cavity 3 are both connected to a circulation component.

[0018] The circulation component uses a circulating pump from the existing technology to pump cold water. When the drying tower 2 needs to be cooled, the circulating pump works, and its outlet end introduces cold water into the annular cavity 3 through the inlet pipe 4. The outlet pipe 5 discharges hot water from the top of the annular cavity 3. The circulating water flows into the inlet end of the circulating pump, forming a circulating water cooling effect and improving the cooling speed of the drying tower 2.

[0019] The drying mechanism includes a hot air assembly and a drying module. The hot air assembly is connected to the drying tower 2. The hot air assembly includes a hot air pipe 6 connected to the bottom of the drying tower 2 and an exhaust pipe 7 connected to the top of the drying tower 2. Both the hot air pipe 6 and the exhaust pipe 7 are equipped with control valves. The end of the hot air pipe 6 away from the drying tower 2 is connected to a hot air blower.

[0020] When the drying module inside the drying tower 2 is close to saturation, the other ventilation pipes on the drying tower 2 are closed, the hot air fan starts working, and its output end delivers hot air into the drying tower 2 through the hot air pipe 6 to evaporate the water inside the drying module and discharge it through the exhaust pipe 7, which facilitates the regeneration of the drying module.

[0021] The exhaust pipe 7 is connected to the external condenser and gas-liquid separator to separate water from the hydrogen. The water is discharged directly, and the hydrogen can be further recycled.

[0022] The drying module includes multiple drying racks 9 that are sequentially snapped together in a vertical direction. A drying block 10 is installed inside the drying rack 9. Multiple electromagnetic locking pins 13 are installed at the top and bottom of the drying tower 2. The outer side of the drying rack 9 has a pin hole 14 that connects and cooperates with the output pin of the electromagnetic locking pin 13.

[0023] The drying block 10 has ventilation holes inside, which facilitates the even distribution of water-containing hydrogen gas inside the drying block 10 and improves the water absorption effect.

[0024] After multiple drying racks 9 are installed inside the drying tower 2, the electromagnetic locking pin 13 is activated, and its output end extends out and engages with the pin holes 14 on the outside of the uppermost and lowermost drying racks 9 to fix the multiple drying racks 9 and ensure their stability when drying water-containing hydrogen.

[0025] Multiple guide rails 8 are fixedly connected to the inner side of the drying tower 2. The outer side of the drying rack 9 is sealed and slidably fitted with the multiple guide rails 8. Multiple sealing grooves 11 are opened on the outer side of the drying rack 9. Sealing rings 12 are fixedly connected inside the sealing grooves 11. The multiple sealing rings 12 are distributed alternately with the multiple guide rails 8.

[0026] The guide rail 8 facilitates the stable sliding of the drying rack 9, and the sealing ring 12 improves the sealing between the drying rack 9 and the drying tower 2, effectively preventing water-containing hydrogen gas from passing directly through the gap between the drying rack 9 and the drying tower 2.

[0027] The annular door 16 is telescopically and slidably connected to the bottom of the drying tower 2, and its inner side is in a sealing sliding fit with the outer side of the drying rack 9.

[0028] The ring-shaped door 16 contacts the drying rack 9, effectively preventing the drying rack 9 from colliding with the bottom of the drying tower 2 during movement.

[0029] Multiple hydraulic telescopic rods 15 are installed on the mounting frame 1, and the output ends of the multiple hydraulic telescopic rods 15 are fixedly connected to the annular door body 16.

[0030] The output end of the hydraulic telescopic rod 15 retracts, causing the annular door 16 to move upward and seal against the bottom of the drying tower 2, and cooperate with the outer side of the drying rack 9 to seal the bottom of the drying tower 2.

[0031] It also includes a sliding support frame 17, on which a telescopic platform 18 is installed. The telescopic platform 18 is fitted with the inner side of the annular door 16 with a clearance and is used to support the drying rack 9.

[0032] When the hydrogen-cooled generator set is working, hydrogen is used as the cooling medium. During the hydrogen circulation, oxygen is easily mixed in the hydrogen, so deoxygenation treatment is required. First, the oxygen is catalyzed to form water by the deoxygenating agent in the deoxygenation tower. Then, the water-containing hydrogen passes through the drying module in the drying tower 2, where water is adsorbed by the drying block 10, and then the dried hydrogen is discharged, completing the hydrogen circulation.

[0033] The deoxygenation tower uses existing technology and is a pre-processing device for the hydrogen circulation system of a hydrogen-cooled generator set. This device includes two drying towers 2. When one is working, the other is used for the regeneration or maintenance of the drying block 10.

[0034] When the drying module needs to be replaced or maintained, all the air pipes on the drying tower 2 are closed. The hydraulic telescopic rod 15 is activated, and its output end extends, causing the annular door 16 to move downward and separate from the drying tower 2. The receiving frame 17 moves to the underside of the annular door 16, and the telescopic platform 18 moves upward through the interior of the annular door 16 and abuts against the bottom of the drying rack 9. The output end of the electromagnetic locking pin 13 retracts, releasing the lock between the drying rack 9 and the drying tower 2. A gap of two drying rack 9 heights and operating space is left between the bottom of the drying tower 2 and the ground. At this time, the telescopic platform 18 moves downward, causing one or two drying racks 9 to detach from the drying tower 2. The drying racks 9 are removed one by one. Through modular design, the drying tower 2 is effectively prevented from being suspended too high.

[0035] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A hydrogen deoxygenation and drying device for a hydrogen-cooled generator set, characterized in that, include: Mounting frame (1), on which a drying tower (2) is mounted, and an annular cavity (3) is opened inside the tower wall of the drying tower (2). A cooling mechanism, which is connected to the annular cavity (3); The drying mechanism includes a drying module, which includes multiple drying racks (9) that are sealed and slidably connected to the inside of the drying tower (2). A drying block (10) is installed inside the drying rack (9). Multiple electromagnetic locking pins (13) are installed at the top and bottom of the drying tower (2). A pin hole (14) is opened on the outside of the drying rack (9) to connect and cooperate with the output pin of the electromagnetic locking pin (13). The annular door (16) is telescopically and slidably connected to the bottom of the drying tower (2), and its inner side is in a sealing sliding fit with the outer side of the drying rack (9).

2. The hydrogen deoxygenation and drying device for a hydrogen-cooled generator set according to claim 1, characterized in that, The cooling mechanism includes an inlet pipe (4) connected to the bottom of the annular cavity (3) and an outlet pipe (5) connected to the top of the annular cavity (3). The ends of the inlet pipe (4) and the outlet pipe (5) away from the annular cavity (3) are both connected to a circulation component.

3. The hydrogen deoxygenation and drying device for a hydrogen-cooled generator set according to claim 1, characterized in that, The drying mechanism also includes a hot air assembly, which includes a hot air pipe (6) connected to the bottom of the drying tower (2) and an exhaust pipe (7) connected to the top of the drying tower (2). Both the hot air pipe (6) and the exhaust pipe (7) are equipped with control valves, and a hot air blower is connected to the end of the hot air pipe (6) away from the drying tower (2).

4. The hydrogen deoxygenation and drying device for a hydrogen-cooled generator set according to claim 1, characterized in that, Multiple guide rails (8) are fixedly connected to the inner side of the drying tower (2). The outer side of the drying rack (9) is sealed and slidably fitted with the multiple guide rails (8). Multiple sealing grooves (11) are opened on the outer side of the drying rack (9). A sealing ring (12) is fixedly connected inside the sealing groove (11). The multiple sealing rings (12) and the multiple guide rails (8) are staggered.

5. The hydrogen deoxygenation and drying device for a hydrogen-cooled generator set according to claim 1, characterized in that, Multiple hydraulic telescopic rods (15) are installed on the mounting frame (1), and the output ends of the multiple hydraulic telescopic rods (15) are fixedly connected to the annular door body (16).

6. The hydrogen deoxygenation and drying device for a hydrogen-cooled generator set according to claim 5, characterized in that, It also includes a sliding support frame (17) on which a telescopic platform (18) is installed. The telescopic platform (18) is in clearance fit with the inner side of the annular door (16) to support the drying rack (9).

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