Rapid hydrogen and air switching structure for hydrogen-cooled generator

Abstract

The utility model relates to the technical field of hydrogen conveying control equipment, and discloses a hydrogen and air quick switching structure for a hydrogen-cooled generator, which comprises a generator communicating pipe, an air conveying pipe and a hydrogen conveying pipe, and valves are arranged on the generator communicating pipe, the air conveying pipe and the hydrogen conveying pipe. Quick connecting assemblies are arranged at the connecting ends of the generator communicating pipe, the air conveying pipe and the hydrogen conveying pipe, and the generator communicating pipe is communicated with the air conveying pipe or the hydrogen conveying pipe through communicating pieces matched with the quick connecting assemblies. According to the hydrogen and air quick switching structure for the hydrogen-cooled generator, the structural design facilitates quick introduction of carbon dioxide into the generator and then introduction of hydrogen or air on the premise that safety is guaranteed, quick switching is achieved, the air conveying pipe or the hydrogen conveying pipe which is not used can be blocked in time, and the service life of the hydrogen-cooled generator is prolonged. The working efficiency and the use safety are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydrogen gas conveying control equipment technical field, concretely relates to a hydrogen gas, air quick switching structure for hydrogen cooling generator. BACKGROUND

[0002] Because hydrogen gas has excellent heat conduction performance, so large generator stator core and rotor winding usually adopt hydrogen gas cooling. But because hydrogen gas mixes with air, it is extremely easy to explode between concentration 4%-75%, so hydrogen charging and hydrogen discharging of the generator must use inert gas (generally carbon dioxide or nitrogen) as intermediate medium to carry out replacement.

[0003] In order to avoid the explosive mixture of air and hydrogen gas in the replacement process, the hydrogen cooling generator is used to install the blocking plate when the air supply pipe and hydrogen gas supply pipe do not supply gas, so as to realize the isolation of air and hydrogen gas. Now the blocking plate needs to be closed once, the secondary door is removed, the blocking plate is added at the secondary door flange, the operation process is troublesome, and the blocking plate material needs to be used for a long time, and there is a risk of hydrogen leakage due to incomplete isolation during the installation of the blocking plate. Although the patent application with patent number CN220816908U proposes a new hydrogen gas control device, the structure design still has the problem of troublesome operation. UTILITY MODEL CONTENT

[0004] The problem to be solved by the utility model is that the existing air and hydrogen gas switching equipment is complex to operate, not completely sealed, and prone to hydrogen leakage.

[0005] In order to solve the above technical problems, the technical scheme of the utility model provides a hydrogen gas, air quick switching structure for hydrogen cooling generator, which comprises a generator communication pipe, an air conveying pipe and a hydrogen gas conveying pipe, the generator communication pipe, the air conveying pipe and the hydrogen gas conveying pipe are all provided with valves, and the connecting ends of the three are all provided with quick connection assemblies, the generator communication pipe is communicated with the air conveying pipe or the hydrogen gas conveying pipe through the communication piece matched with the quick connection assembly.

[0006] Optionally, the quick connection assembly comprises a connecting barrel respectively sleeved on the connecting end of the generator communication pipe, the air conveying pipe and the hydrogen gas conveying pipe, one end of the connecting barrel is open and extends out of the connecting end of the generator communication pipe, the air conveying pipe and the hydrogen gas conveying pipe, the connecting end of the generator communication pipe, the air conveying pipe and the hydrogen gas conveying pipe is provided with an annular lap plate, the outer ring wall of the annular lap plate is connected with the inner wall of the connecting barrel, the outer side of the annular lap plate in the connecting barrel is further provided with an annular extrusion plate, a tension spring is arranged between the annular lap plate and the annular extrusion plate, the annular lap plate is provided with a lap slot and a lap slot.

[0007] Optionally, the let go slot penetrates through both sides of the annular lap joint plate, the lap joint slot opening faces the generator communication pipe, the air conveying pipe and the hydrogen conveying pipe, and does not penetrate through the annular lap joint plate.

[0008] Optionally, the inner bottom of the connecting cylinder is provided with an annular baffle sleeved on the generator communication pipe, the air conveying pipe and the hydrogen conveying pipe, and a sealing ring one is arranged between the annular baffle and the bottom of the connecting cylinder.

[0009] Optionally, the outer ring wall of the annular extrusion plate is provided with a sealing ring two matched with the inner wall of the connecting cylinder, the side of the annular extrusion plate facing the opening of the connecting cylinder is provided with a sealing groove, and the inner ring wall of the annular extrusion plate is provided with a sealing ring four.

[0010] Optionally, the communication piece comprises a corrugated cylinder, both ends of the corrugated cylinder are provided with plug-in pipes, the plug-in pipes are provided with annular sealing plates, the side of the sealing plate away from the corrugated cylinder is provided with a sealing ring three matched with the sealing groove on the annular extrusion plate, and the end of the plug-in pipe is provided with a lap joint corresponding to the let go slot and the lap joint slot.

[0011] Optionally, the sealing ring one, the sealing ring two, the sealing ring three and the sealing ring four are all made of rubber.

[0012] Optionally, the bypass opening is arranged at the position between the valve and the quick connection assembly on the air conveying pipe and the hydrogen conveying pipe, the bypass opening is connected with a carbon dioxide conveying pipe, and the carbon dioxide conveying pipe is provided with a valve.

[0013] In summary, the hydrogen, air quick switching structure for the hydrogen-cooled generator provided by the utility model realizes quick conversion, and can timely block the air conveying pipe or the hydrogen conveying pipe which is not used, so that the working efficiency and the use safety are ensured. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is the overall structure schematic view of the utility model;

[0015] Figure 2 is Figure 1 is the structure schematic view of the communication piece in the utility model;

[0016] Figure 3 is the structure schematic view of the communication piece in the utility model;

[0017] Figure 4 is the top view of the lap joint plate in the utility model;

[0018] In the figure: 1, generator communication pipe; 2, air conveying pipe; 3, hydrogen conveying pipe; 4, valve; 5, communication piece; 5-1, corrugated cylinder; 5-2, plug-in pipe; 5-3, sealing plate; 5-4, sealing ring three; 5-5, lap joint; 6, annular baffle; 7, annular lap joint plate; 7-1, accommodation slot; 7-2, lap joint slot; 8, annular extrusion plate; 9, tension spring; 10, connecting cylinder; 11, sealing ring one; 12, sealing ring two; 13, sealing plug; 14, carbon dioxide conveying pipe. DETAILED DESCRIPTION

[0019] The following Figures 1-4 The utility model is further explained in detail.

[0020] The utility model discloses a hydrogen -cooled generator is with hydrogen, air quick switching structure, refer to Figure 1 , including generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3, be equipped with valve 4 on generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3, and the connecting end of three are equipped with quick -wired assembly, and generator communication pipe 1 is communicated with air conveying pipe 2 or hydrogen conveying pipe 3 through the communication piece 5 of quick -wired assembly adaptation, and the position between valve 4 and quick -wired assembly on air conveying pipe 2 and hydrogen conveying pipe 3 is equipped with bypass, and the bypass is connected with carbon dioxide conveying pipe 14, and is equipped with valve 4 on carbon dioxide conveying pipe 14.

[0021] In further embodiments, reference Figure 2 And Figure 4 , quick -wired assembly includes the connecting cylinder 10 of respectively setting in generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3 connecting end, and the connecting cylinder 10 one end opening and stretches out the connecting end of generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3, and is equipped with annular lap joint plate 7 on the connecting end of generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3, and the outer ring wall of annular lap joint plate 7 is connected with the inner wall of connecting cylinder 10, and the outer side of annular lap joint plate 7 in connecting cylinder 10 still is equipped with annular extrusion plate 8, and is equipped with tension spring 9 between annular lap joint plate 7 and annular extrusion plate 8, and is equipped with accommodation slot 7-1 and lap joint slot 7-2 on annular lap joint plate 7, and accommodation slot 7-1 penetrates both sides of annular lap joint plate 7, and lap joint slot 7-2 opening is towards generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3, and does not penetrate annular lap joint plate 7, and is equipped with annular baffle 6 of setting in generator communication pipe 1, air conveying pipe 2 and hydrogen conveying pipe 3 in the bottom of connecting cylinder 10, and is equipped with sealing ring one 11 between annular baffle 6 and the bottom of connecting cylinder 10, and is equipped with sealing ring two 12 of sticking with the inner wall of connecting cylinder 10 on the outer ring wall of annular extrusion plate 8, and is equipped with sealing groove on the side of annular extrusion plate 8 towards the opening of connecting cylinder 10, and is equipped with sealing ring four on the inner ring wall of annular extrusion plate 8;

[0022] Specifically, to further prevent hydrogen or high-pressure air leakage, the air delivery pipe 2 or the hydrogen delivery pipe 3 is not used, and the sealing plug 13 is used to block the end of the connecting cylinder 10 in the quick connection assembly.

[0023] In further embodiments, with reference to Figure 3 The communication piece 5 includes a corrugated cylinder 5-1, both ends of the corrugated cylinder 5-1 are provided with a plug-in pipe 5-2, the plug-in pipe 5-2 is provided with a ring-shaped sealing plate 5-3, the side of the sealing plate 5-3 away from the corrugated cylinder 5-1 is provided with a sealing ring 5-4 matched with the sealing groove on the ring-shaped extrusion plate 8, the end of the plug-in pipe 5-2 is provided with a lap joint 5-5 corresponding to the gap slot 7-1 and the lap slot 7-2, the materials of the sealing ring one 11, the sealing ring two 12, the sealing ring three 5-4 and the sealing ring four are rubber, the inner ring diameter of the ring-shaped lap plate 7 is the same as the outer diameter of the plug-in pipe 5-2, and the inner diameter of the ring-shaped extrusion plate 8 is slightly larger than the outer diameter of the plug-in pipe 5-2, so that the plug-in pipe 5-2 can pass through the ring-shaped extrusion plate 8 and be sealed by the sealing ring four.

[0024] In use, first, the plug-in pipe 5-2 is inserted into the corresponding quick connection assembly of the generator communication pipe 1, the plug-in pipe 5-2 passes through the sealing ring 4 on the inner ring wall of the ring-shaped extrusion plate 8, the sealing ring three 5-4 on the sealing plate 5-3 arranged on the plug-in pipe 5-2 is in contact with the sealing groove below the ring-shaped extrusion plate 8, the plug-in pipe 5-2 is continuously pushed, so that the lap joint 5-5 passes through the gap slot 7-1 on the ring-shaped lap plate 7, then the plug-in pipe 5-2 is rotated, so that the lap joint 5-5 falls into the lap slot 7-2.

[0025] When it is needed to pass hydrogen into the generator, the valve 4 on the air delivery pipe 2 is in a closed state, the connecting cylinder 10 at the end of the air delivery pipe 2 is sealed by the sealing plug 13, then the other plug-in pipe 5-2 of the communication piece 5 is connected to the quick connection assembly corresponding to the hydrogen delivery pipe 3 in the same way, then the valves 4 on the generator communication pipe 1 and the carbon dioxide delivery pipe 14 are opened, carbon dioxide is first passed into the generator, then the valve 4 on the carbon dioxide delivery pipe 14 is closed, and the valve 4 on the hydrogen delivery pipe 3 is opened.

[0026] When it is needed to pass air into the generator, the valve 4 on the hydrogen delivery pipe 3 is in a closed state, the connecting cylinder 10 at the end of the hydrogen delivery pipe 2 is sealed by the sealing plug 13, then the other plug-in pipe 5-2 of the communication piece 5 is connected to the quick connection assembly corresponding to the air delivery pipe 2, then the valves 4 on the generator communication pipe 1 and the carbon dioxide delivery pipe 14 are opened, carbon dioxide is first passed into the generator, then the valve 4 on the carbon dioxide delivery pipe 14 is closed, and the valve 4 on the air delivery pipe 2 is opened.

[0027] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not limiting. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present application, and they should be covered in the scope of the claims of the present application.

Claims

1. A hydrogen, air quick switching structure for a hydrogen-cooled generator, characterized by, The utility model provides a quick -witted component for generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3), generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3) are equipped with valve (4) on all, and the connecting end of three is equipped with quick -witted component, generator communication pipe (1) is communicated with air delivery pipe (2) or hydrogen delivery pipe (3) through the communication piece (5) of quick -witted component adaptation.

2. The hydrogen gas, air quick switching structure for a hydrogen-cooled generator according to claim 1, characterized by, The quick -witted component includes the connecting cylinder (10) of the sleeve that sets in generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3) connecting end respectively, the connecting cylinder (10) one end opening and the connecting end of generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3) are stretched out, the connecting end of generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3) is equipped with annular lap joint board (7), the outer ring wall of annular lap joint board (7) is connected with the inner wall of connecting cylinder (10), the outside of annular lap joint board (7) in connecting cylinder (10) is also equipped with annular extrusion board (8), and the tension spring (9) is equipped between annular lap joint board (7) and annular extrusion board (8), is equipped with the accommodation groove (7-1) and the lap joint groove (7-2) on annular lap joint board (7).

3. The hydrogen, air quick switching structure for a hydrogen-cooled generator according to claim 2, characterized by, The accommodation groove (7-1) penetrates both sides of annular lap joint board (7), and the lap joint groove (7-2) opening is towards generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3), and does not penetrate annular lap joint board (7).

4. The hydrogen gas, air quick switching structure for a hydrogen-cooled generator according to claim 2, characterized by, The bottom of connecting cylinder (10) is equipped with the annular baffle (6) of the sleeve that sets in generator communication pipe (1), air delivery pipe (2) and hydrogen delivery pipe (3), and the bottom of connecting cylinder (10) is equipped with sealing ring no.

5. The hydrogen gas, air quick switching structure for a hydrogen-cooled generator according to claim 4, characterized by, The outer ring wall of annular extrusion board (8) is equipped with sealing ring no. 2 (12) that is attached with the inner wall of connecting cylinder (10), and the side of annular extrusion board (8) opening towards connecting cylinder (10) is equipped with sealing groove, and the inner ring wall of annular extrusion board (8) is equipped with sealing ring no.

6. The hydrogen gas, air quick switching structure for a hydrogen-cooled generator according to claim 5, characterized by, The communication piece (5) includes the corrugated cylinder (5-1) the both ends of corrugated cylinder (5-1) are equipped with the plug -in pipe (5-2), the plug -in pipe (5-2) is equipped with annular sealing plate (5-3) the side of sealing plate (5-3) away from corrugated cylinder (5-1) is equipped with sealing ring no. 3 (5-4) that is matched with the sealing groove on annular extrusion board (8), and the end of plug -in pipe (5-2) is equipped with the lap joint (5-5) corresponding with accommodation groove (7-1) and lap joint groove (7-2).

7. The hydrogen gas, air quick switching structure for a hydrogen-cooled generator according to claim 6, characterized by, The material of sealing ring no. 11, sealing ring no. 12, sealing ring no. 3 (5-4) and sealing ring no. 4 is rubber.

8. The hydrogen gas, air quick switching structure for a hydrogen-cooled generator according to claim 1, characterized by, The position between valve (4) and quick -witted component on air delivery pipe (2) and hydrogen delivery pipe (3) is equipped with bypass, and the bypass is connected with carbon dioxide delivery pipe (14), and the carbon dioxide delivery pipe (14) is equipped with valve (4).

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