Water storage and supply device for underwater fuel cell system

Abstract

The utility model provides a water storage and supply device for an underwater fuel cell system. The water storage and supply device sequentially comprises a high-pressure hydrogen cylinder, a built-in rubber capsule and a shell from inside to outside, the tail end of the high-pressure hydrogen cylinder is sleeved with a round sleeve with a cap, and the head end of the high-pressure hydrogen cylinder is fixedly connected with an air inlet and outlet metal nozzle. The inner side of the tail end of the built-in rubber capsule is in wedge connection with the capped round sleeve, the outer side of the tail end of the built-in rubber capsule abuts against the shell, and the capped round sleeve is fixedly connected with the shell; the inner side of the head end of the built-in rubber bag is in wedge connection with the air inlet and outlet metal nozzle, the outer side of the head end of the built-in rubber bag abuts against the shell, and the metal nozzle locking piece is fixedly connected with the air inlet and outlet metal nozzle and abuts against the shell. A variable gas storage cavity is formed between the built-in rubber bag and the high-pressure hydrogen cylinder, a variable water storage cavity is formed between the shell and the built-in rubber bag, a water outlet is formed in the shell, a low-pressure gas flow channel in the gas inlet and outlet metal nozzle is communicated with the variable gas storage cavity, and a high-pressure gas flow channel in the gas inlet and outlet metal nozzle is communicated with an inner cavity of the high-pressure hydrogen cylinder.

Description

Technical Field

[0001] The utility model relates to the technical field of water storage and supply, in particular to a water storage and supply device for an underwater fuel cell system. Background Art

[0002] The water storage and supply device and the hydrogen supply device are applied to an underwater fuel cell system and are installed in the power system cabin section. Their functions are as follows: by supplying gas from an upstream gas cylinder to squeeze an internal rubber bladder, the volume of the water storage chamber between the internal rubber bladder and the outer shell is gradually reduced, and then water is gradually supplied to the downstream system. By opening an electromagnetic valve connected to a high-pressure hydrogen cylinder, hydrogen is supplied to the downstream system;

[0003] Most of the existing water supply devices and hydrogen supply devices are arranged in separate tanks, that is, the water supply device and the hydrogen supply device are two independent tank groups. Although they can meet the storage / supply of gas and the storage / supply of hydrogen, the overall structure occupies a large area, making the entire underwater fuel cell system relatively crowded. Summary of the Utility Model

[0004] In view of this, the problem to be solved by the utility model is to provide a water storage and supply device for an underwater fuel cell system.

[0005] To solve the above technical problems, the technical solution adopted by the utility model is:

[0006] The water storage and supply device for an underwater fuel cell system includes, from inside to outside in sequence, a high-pressure hydrogen cylinder, an internal rubber bladder, and an outer shell;

[0007] A capped round sleeve is sleeved on the tail end of the high-pressure hydrogen cylinder, and an air inlet and exhaust metal nozzle is fixedly connected to the head end of the high-pressure hydrogen cylinder;

[0008] The inner side of the tail end of the internal rubber bladder is wedged with the capped round sleeve, the outer side of the tail end of the internal rubber bladder abuts against the outer shell, and the capped round sleeve is tightly connected to the outer shell;

[0009] The inner side of the head end of the internal rubber bladder is wedged with the air inlet and exhaust metal nozzle, the outer side of the head end of the internal rubber bladder abuts against the outer shell, and the metal nozzle locking member is tightly connected to the air inlet and exhaust metal nozzle and abuts against the outer shell;

[0010] A variable gas storage cavity is formed between the internal rubber bladder and the high-pressure hydrogen cylinder, a variable water storage cavity is formed between the outer shell and the internal rubber bladder, a water outlet is opened on the outer shell, the low-pressure gas flow channel in the air inlet and exhaust metal nozzle is communicated with the variable gas storage cavity, and the high-pressure gas flow channel in the air inlet and exhaust metal nozzle is communicated with the inner cavity of the high-pressure hydrogen cylinder.

[0011] The outer shell includes a head section shell and a tail section shell which are butt-welded.

[0012] The outer wall of the capped round sleeve is provided with an external thread, and the inner part of the corresponding outer shell is provided with an internal thread.

[0013] The metal nozzle locking part is a flange. An internal thread is formed on the inner peripheral surface of the flange, and an external thread is formed on the outer peripheral surface of the corresponding air inlet / outlet metal nozzle.

[0014] A sealing ring slot is formed on the inner peripheral surface of the capped round sleeve. A sealing ring is also sleeved on the tail end of the high-pressure hydrogen cylinder, and the sealing ring abuts between the sealing ring slot and the tail end of the high-pressure hydrogen cylinder.

[0015] The air inlet / outlet ports of the low-pressure gas flow channel and the air inlet / outlet ports of the high-pressure gas flow channel are respectively connected with a low-pressure gas pipe and a high-pressure gas pipe.

[0016] The advantages and positive effects of the present utility model are as follows:

[0017] Through the design of the sealing structure, a variable gas storage cavity is formed between the built-in rubber bladder and the high-pressure hydrogen cylinder, and a variable water storage cavity is formed between the outer shell and the built-in rubber bladder. When water supply is required, low-pressure gas enters the variable gas storage cavity from the low-pressure gas flow channel, and then squeezes the adjacent variable water storage cavity, so that the water in the variable water storage cavity enters the next-level water supply system from the water outlet; when gas supply is required, the electric control valve is opened, and the high-pressure gas in the high-pressure hydrogen cylinder enters the next-level gas supply system through the high-pressure gas flow channel, thereby realizing the functions of water supply and gas supply in a group of tanks at the same time. Description of the Drawings

[0018] The drawings are used to provide further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0019] Figure 1 is a cross-sectional view of the water storage and supply device for an underwater fuel cell system of the present utility model from the first perspective;

[0020] Figure 2 is Figure 1 an enlarged view at A;

[0021] Figure 3 is Figure 2 an enlarged view at B;

[0022] Figure 4 is a cross-sectional view of the water storage and supply device for an underwater fuel cell system of the present utility model from the second perspective;

[0023] Figure 5 is Figure 4 an enlarged view at C;

[0024] Figure 6 is the overall structure diagram of the water storage and supply device for an underwater fuel cell system of the present utility model

[0025] In the figure: housing 1, water outlet 11, first section housing 13, last section housing 14, built-in rubber bladder 2, convex part 21, high-pressure hydrogen cylinder 3, capped round sleeve 31, sealing ring slot 312, sealing ring 315, air intake and exhaust metal nozzle 32, low-pressure gas flow channel 321, high-pressure gas flow channel 322, annular groove 33, flange 34, variable gas storage cavity 36, variable water storage cavity 37, low-pressure gas conduit 41, high-pressure gas conduit 42. Detailed implementation manner

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are only for the purpose of illustration.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0029] As Figures 1 to 6 shown, the water storage and supply device for an underwater fuel cell system sequentially includes a high-pressure hydrogen cylinder 3, a built-in rubber bladder 2, and a housing 1 from the inside to the outside;

[0030] A capped round sleeve 31 is sleeved on the tail end of the high-pressure hydrogen cylinder 3, and an air intake and exhaust metal nozzle 32 is fixedly connected to the head end of the high-pressure hydrogen cylinder 3;

[0031] In this embodiment, convex portions 21 are constructed at both ends of the built-in rubber bladder 2. Ring-shaped grooves 33 corresponding to the convex portions 21 are constructed on the capped sleeves 31 and the intake and exhaust metal nozzles 32 respectively arranged at both ends of the high-pressure hydrogen cylinder 3. The inner side of the tail end of the built-in rubber bladder 2 is wedged with the capped sleeve 31, the outer side of the tail end of the built-in rubber bladder 2 abuts against the outer shell 1, and the capped sleeve 31 is fixedly connected to the outer shell 1. By pressing the built-in rubber bladder 2 and the outer shell 1 through the capped sleeve 31, the convex portion 21 of the built-in rubber bladder 2 and the ring-shaped groove 33 of the capped sleeve 31 are kept in an engaged state, realizing the tail-end seal among the high-pressure hydrogen cylinder 3, the built-in rubber bladder 2, and the outer shell 1;

[0032] The inner side of the head end of the built-in rubber bladder 2 is also wedged with the intake and exhaust metal nozzle 32 through the convex portion 21 and the ring-shaped groove 33. The outer side of the head end of the built-in rubber bladder 2 abuts against the outer shell 1. The metal nozzle locking member is fixedly connected to the intake and exhaust metal nozzle 32 and abuts against the outer side of the outer shell 1. By pressing the outer shell 1, the built-in rubber bladder 2, and the intake and exhaust metal nozzle 32 through the metal nozzle locking member, the convex portion 21 of the built-in rubber bladder 2 and the ring-shaped groove 33 on the intake and exhaust metal nozzle 32 are kept in an engaged state, realizing the head-end seal among the high-pressure hydrogen cylinder 3, the built-in rubber bladder 2, and the outer shell 1;

[0033] Through the above sealing structure, a variable gas storage cavity 36 is formed between the built-in rubber bladder 2 and the high-pressure hydrogen cylinder 3, and a variable water storage cavity 37 is formed between the outer shell 1 and the built-in rubber bladder 2. A water outlet 11 is opened on the outer shell 1. The low-pressure gas flow channel 321 in the intake and exhaust metal nozzle 32 is communicated with the variable gas storage cavity 36, and the high-pressure gas flow channel 322 in the intake and exhaust metal nozzle 32 is communicated with the inner cavity of the high-pressure hydrogen cylinder 3. The low-pressure gas flow channel 321 and the high-pressure gas flow channel 322 are not communicated with each other and are independent gas flow channels;

[0034] When water supply is required, low-pressure gas enters the variable gas storage cavity 36 from the low-pressure gas flow channel 321, causing the volume of the variable gas storage cavity 36 to expand, and then squeezing the adjacent variable water storage cavity 37, so that the water in the variable water storage cavity 37 enters the lower-level water supply system from the water outlet 11; when gas supply is required, the electromagnetic valve is opened, and the high-pressure gas in the high-pressure hydrogen cylinder 3 enters the lower-level gas supply system through the high-pressure gas flow channel 322. Thus, in a set of tanks, the functions of water supply and gas supply are simultaneously available, and the occupied space is greatly reduced.

[0035] Specifically, the outer shell 1 includes a head section shell 13 and a tail section shell 14. After the tail end and the head end among the high-pressure hydrogen cylinder 3, the built-in rubber bladder 2, and the outer shell 1 are hermetically combined, the head section shell 13 and the tail section shell 14 are butt-welded.

[0036] Specifically, an external thread is configured on the outer wall of the capped circular sleeve 31, and an internal thread is configured inside the corresponding outer shell 1. The capped circular sleeve 31 and the outer shell 1 are fastened by means of threaded connection.

[0037] Specifically, the metal nozzle locking member is a flange 34. An internal thread is configured on the inner circumferential surface of the flange 34, and an external thread is configured on the outer circumferential surface of the corresponding air inlet / outlet metal nozzle 32. The flange 34 and the air inlet / outlet metal nozzle 32 are fastened by means of threaded connection.

[0038] Specifically, a sealing ring groove 312 is configured on the inner circumferential surface of the capped circular sleeve 31, and a sealing ring 315 is further sleeved on the tail end of the high-pressure hydrogen cylinder 3. The sealing ring 315 abuts between the sealing ring groove 312 and the tail end of the high-pressure hydrogen cylinder 3, thereby realizing the sealing between the tail end of the high-pressure hydrogen cylinder 3 and the capped circular sleeve 31.

[0039] Specifically, a low-pressure gas guide pipe 41 and a high-pressure gas guide pipe 42 are respectively connected to the air inlet / outlet ports of the low-pressure gas flow channel 321 and the air inlet / outlet ports of the high-pressure gas flow channel 322. The low-pressure gas guide pipe 41 is connected to a low-pressure gas supply device, and the high-pressure gas guide pipe 42 is connected to an electric control valve, thereby realizing the inlet and outlet of high and low pressure gases.

[0040] The working principle and working process of the present utility model are as follows:

[0041] When water supply is required, low-pressure gas enters the variable gas storage cavity 36 through the low-pressure gas guide pipe 41 and from the low-pressure gas flow channel 321, causing the volume of the variable gas storage cavity 36 to expand, thereby squeezing the adjacent variable water storage cavity 37, and the water in the variable water storage cavity 37 enters the lower-level water supply system from the water outlet 11; when gas supply is required, the electric control valve is opened, and the high-pressure gas in the high-pressure hydrogen cylinder 3 enters the lower-level gas supply system through the high-pressure gas flow channel 322 and from the high-pressure gas guide pipe 42.

[0042] The above has described the embodiments of the present utility model in detail, but the content described is only the preferred embodiments of the present utility model and cannot be considered as used to limit the scope of implementation of the present utility model. All equal changes and improvements made according to the scope of the present utility model should still fall within the scope covered by this patent.

Claims

1. A water storage and supply device for an underwater fuel cell system, characterized in that, It successively includes a high-pressure hydrogen cylinder (3), an inner rubber bladder (2), and an outer shell (1) from the inside to the outside; A capped round sleeve (31) is sleeved on the tail end of the high-pressure hydrogen cylinder (3), and an air inlet and outlet metal nozzle (32) is fixedly connected to the head end of the high-pressure hydrogen cylinder (3); The inner side of the tail end of the inner rubber bladder (2) is wedged with the capped round sleeve (31), the outer side of the tail end of the inner rubber bladder (2) abuts against the outer shell (1), and the capped round sleeve (31) is tightly connected to the outer shell (1); The inner side of the head end of the inner rubber bladder (2) is wedged with the air inlet and outlet metal nozzle (32), the outer side of the head end of the inner rubber bladder (2) abuts against the outer shell (1), and the metal nozzle locking member is tightly connected to the air inlet and outlet metal nozzle (32) and abuts against the outer shell (1); A variable gas storage cavity (36) is formed between the inner rubber bladder (2) and the high-pressure hydrogen cylinder (3), a variable water storage cavity (37) is formed between the outer shell (1) and the inner rubber bladder (2), a water outlet (11) is provided on the outer shell (1), a low-pressure gas flow channel (321) in the air inlet and outlet metal nozzle (32) is communicated with the variable gas storage cavity (36), and a high-pressure gas flow channel (322) in the air inlet and outlet metal nozzle (32) is communicated with the inner cavity of the high-pressure hydrogen cylinder (3).

2. The water storage and supply device for an underwater fuel cell system according to claim 1, wherein The outer shell (1) includes a head section shell (13) and a tail section shell (14) which are butt-welded.

3. The water storage and supply device for an underwater fuel cell system according to claim 1, wherein External threads are formed on the outer wall of the capped round sleeve (31), and internal threads are formed inside the corresponding outer shell (1).

4. The water storage and supply device for an underwater fuel cell system according to claim 1, wherein The metal nozzle locking member is a flange plate (34), internal threads are formed on the inner circumferential surface of the flange plate (34), and external threads are formed on the outer circumferential surface of the corresponding air inlet and outlet metal nozzle (32).

5. The water storage and supply device for an underwater fuel cell system according to claim 1, characterized in that, A sealing ring groove (312) is formed on the inner circumferential surface of the capped round sleeve (31), and a sealing ring (315) is also sleeved on the tail end of the high-pressure hydrogen cylinder (3), and the sealing ring (315) abuts between the sealing ring groove (312) and the tail end of the high-pressure hydrogen cylinder (3).

6. The water storage and supply device for an underwater fuel cell system according to claim 1, characterized in that, Low-pressure gas guide pipes (41) and high-pressure gas guide pipes (42) are respectively connected to the air inlet and outlet ports of the low-pressure gas flow channel (321) and the air inlet and outlet ports of the high-pressure gas flow channel (322).

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