Pipeline sealing mechanism for water storage and supply equipment

Abstract

The utility model provides a pipeline sealing mechanism for water storage and supply equipment, which is characterized in that a gas outlet end of a high-pressure hydrogen cylinder is fixedly connected with a gas inlet and outlet metal nozzle, the inner side of a connecting end of a built-in rubber capsule is wedged with the gas inlet and outlet metal nozzle, and the outer side of the connecting end of the built-in rubber capsule is propped against a shell; the metal nozzle locking piece is fixedly connected with the intake and exhaust metal nozzle and abuts against the outer side end of the shell; a variable gas storage cavity is formed between the built-in rubber bag and the high-pressure hydrogen cylinder, a low-pressure gas flow channel in the gas inlet and outlet metal nozzle is communicated with the variable gas storage cavity, 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, and the low-pressure gas flow channel is not communicated with the high-pressure gas flow channel. The low-pressure gas flow channel and the high-pressure gas flow channel are integrated on the gas inlet and outlet metal nozzle, and the sealing design among the connecting ends of the high-pressure hydrogen cylinder, the built-in rubber bag and the shell is combined, so that the pipeline structure is simplified, the sealing performance is good, and the water supply and gas supply functions are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of water storage and supply, in particular to a pipeline sealing mechanism for water storage and supply equipment. Background Art

[0002] The water storage and supply equipment is applied to the power system of an underwater device and is installed in the power system cabin section. Its principle is as follows: The upstream gas cylinder supplies gas to squeeze the built-in rubber bladder, so that the volume of the water storage chamber between the built-in rubber bladder and the outer shell gradually decreases, and then water is gradually supplied to the downstream system; by opening the electric control valve connected to the high-pressure hydrogen cylinder, hydrogen is supplied to the downstream system.

[0003] However, in the pipeline sealing mechanism of the existing water storage and supply equipment, the pipeline design is relatively complex and the sealing performance of the entire pipeline is poor. Therefore, water leakage often occurs, resulting in low pressure and insufficient water supply when supplying water to the downstream system. Summary of the Utility Model

[0004] In view of this, the problem to be solved by the utility model is to provide a pipeline sealing mechanism for water storage and supply equipment.

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

[0006] For the pipeline sealing mechanism of water storage and supply equipment, the air outlet end of the high-pressure hydrogen cylinder is fixedly connected with an air inlet and exhaust metal nozzle. The inner side of the connection end of the built-in rubber bladder is wedged with the air inlet and exhaust metal nozzle, and the outer side of the connection end of the built-in rubber bladder abuts against the outer shell. The metal nozzle locking part is fixedly connected with the air inlet and exhaust metal nozzle and abuts against the outer side end of the outer shell;

[0007] A variable gas storage cavity is formed between the built-in rubber bladder and the high-pressure hydrogen cylinder. 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. The low-pressure gas flow channel and the high-pressure gas flow channel are not communicated with each other.

[0008] The air inlet and exhaust metal nozzle includes a mounting seat and a high-pressure pipe connection head and a low-pressure connection head integrally arranged with the mounting seat;

[0009] The first port of the low-pressure gas flow channel is located on the side wall of the mounting seat, and the second port of the low-pressure gas flow channel is located on the side wall of the low-pressure connection head;

[0010] The first port of the high-pressure gas flow channel is located at the bottom of the high-pressure pipe connection head, and the second port of the high-pressure gas flow channel is located on the side wall of the high-pressure pipe connection head.

[0011] The second port of the low-pressure gas flow channel and the second port of the high-pressure gas flow channel are respectively connected with a low-pressure gas guide pipe and a high-pressure gas guide pipe.

[0012] A convex part is formed on the connecting end of the built-in rubber bladder, and a ring-shaped groove corresponding to the convex part is formed on the mounting seat of the air inlet and outlet metal nozzle, and the ring-shaped groove faces the outer shell.

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

[0014] The advantages and positive effects of the present utility model are:

[0015] In this application, the low-pressure gas flow channel and the high-pressure gas flow channel are integrated on an air inlet and outlet metal nozzle, and combined with the sealing design between the connecting ends of the high-pressure hydrogen cylinder, the built-in rubber bladder, and the outer shell, the pipeline structure is simplified and has better sealing performance, and has the functions of supplying water and gas. Description of the Drawings

[0016] The drawings are used to provide a 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:

[0017] Figure 1 is a cross-sectional view of the pipeline sealing mechanism of the water storage and supply device of the present utility model from the first perspective;

[0018] Figure 2 is Figure 1 an enlarged view at A;

[0019] Figure 3 is Figure 2 an enlarged view at B;

[0020] Figure 4 is a cross-sectional view of the pipeline sealing mechanism of the water storage and supply device of the present utility model from the second perspective;

[0021] Figure 5 is Figure 4 an enlarged view at C;

[0022] Figure 6 is the overall structure diagram of the pipeline sealing mechanism of the water storage and supply device of the present utility model

[0023] In the figure: outer shell 1, water outlet 11, first section shell 13, tail section shell 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 inlet and outlet metal nozzle 32, low-pressure gas flow channel 321, high-pressure gas flow channel 322, ring-shaped groove 33, flange 34, variable gas storage cavity 36, variable water storage cavity 37, low-pressure gas pipe 41, high-pressure gas pipe 42. Detailed Embodiments

[0024] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0025] 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 may 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 for illustrative purposes only.

[0026] 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 utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0027] As Figures 1 to 6 shown, the present utility model provides a pipeline sealing mechanism for a water storage and supply device.

[0028] The water storage and supply device sequentially includes a high-pressure hydrogen cylinder 3, an internal rubber bladder 2, and an outer shell 1 from the inside to the outside.

[0029] At the outlet end of the high-pressure hydrogen cylinder 3 in the pipeline sealing mechanism, an intake and exhaust metal nozzle 32 is fixedly connected. The connection end of the built-in rubber bladder 2 is configured with a convex portion 21. An annular groove 33 corresponding to the convex portion 21 is configured on the intake and exhaust metal nozzle 32 provided at the outlet end of the high-pressure hydrogen cylinder 3. The annular groove 33 is configured on the base 321 of the intake and exhaust metal nozzle 32 and faces the outer shell 1. The inner side of the connection end of the built-in rubber bladder 2 is wedged with the intake and exhaust metal nozzle 32 through the convex portion 21 and the annular groove 33. The outer side of the connection 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 and the built-in rubber bladder 2 against the intake and exhaust metal nozzle 32 with the metal nozzle locking member, the convex portion 21 of the built-in rubber bladder 2 is kept in an engaged state with the annular groove 33 on the intake and exhaust metal nozzle 32. Within the range of 360°, both sides of the connection end of the built-in rubber bladder 2 are closely attached to the intake and exhaust metal nozzle 32 and the outer shell 1, realizing the sealing between the connection ends of the high-pressure hydrogen cylinder 3, the built-in rubber bladder 2, and the outer shell 1;

[0030] Through the sealing between the connection ends of the three, 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 provided 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;

[0031] 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 through 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;

[0032] In this application, the low-pressure gas flow channel 321 and the high-pressure gas flow channel 322 are integrated on an intake and exhaust metal nozzle 32, and combined with the sealing design between the connection ends of the high-pressure hydrogen cylinder 3, the built-in rubber bladder 2, and the outer shell 1, the pipeline structure is simplified and has better sealing performance, and has the functions of water supply and gas supply.

[0033] Specifically, the outer shell 1 includes a first-section shell 13 and a tail-section shell 14. After the connection ends of the high-pressure hydrogen cylinder 3, the built-in rubber bladder 2, and the outer shell 1 are hermetically combined, the first-section shell 13 and the tail-section shell 14 are butt-welded.

[0034] Specifically, the metal nozzle locking member is a flange 34. An internal thread is formed on the inner circumferential surface of the flange 34, and an external thread is formed on the outer circumferential surface of the corresponding intake and exhaust metal nozzle 32. The flange 34 and the intake and exhaust metal nozzle 32 are fastened by means of threaded connection.

[0035] Specifically, the intake and exhaust metal nozzle 32 includes a mounting seat 323, a high-pressure pipe connector 324 and a low-pressure connector 325 that are integrally provided with the mounting seat 323. The mounting seat 323 is fixed to the intake end of the high-pressure hydrogen cylinder 3;

[0036] The first port of the low-pressure gas flow channel 321 is located on the side wall of the mounting seat 323, and the second port of the low-pressure gas flow channel 321 is located on the side wall of the low-pressure connector 325; the first port of the high-pressure gas flow channel 322 is located at the bottom of the high-pressure pipe connector 324, and the second port of the high-pressure gas flow channel 322 is located on the side wall of the high-pressure pipe connector 324. Furthermore, the second ports of the low-pressure gas flow channel 321 and the high-pressure gas flow channel 322 can be vertically connected to the low-pressure gas guide pipe 41 and the high-pressure gas guide pipe 42 respectively; thus, the entire pipeline mechanism is made more compact.

[0037] Specifically, 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 electromagnetic valve, thereby realizing the inlet and outlet of high- and low-pressure gases.

[0038] Further, in another embodiment of the present application, the built-in rubber bladder 2 is provided with two connecting end segments. The difference from the previous embodiment is as follows:

[0039] Convex portions 21 are formed at both ends of the built-in rubber bladder 2. The other end of the high-pressure hydrogen cylinder 3 is sleeved with a capped round sleeve 31, and an annular groove 33 corresponding to the convex portion 21 is formed on the cap portion of the capped round sleeve 31;

[0040] The inner side of the other connecting end of the built-in rubber bladder 2 and the capped round sleeve 31 are wedged through the convex portion 21 and the annular groove 33. The outer side of the other connecting end of the built-in rubber bladder 2 abuts against the outer shell 1. The capped round sleeve 31 is threadedly connected to the outer shell 1. The built-in rubber bladder 2 and the outer shell 1 are pressed by the capped round sleeve 31. Furthermore, the convex portion 21 of the built-in rubber bladder 2 and the annular groove 33 of the capped round sleeve 31 are kept in an engaged state. That is, within a range of 360°, both sides of the other connecting end of the built-in rubber bladder 2 are also closely attached to the capped round sleeve 31 and the outer shell 1. Thus, the sealing between the other connecting ends of the capped round sleeve 31, the built-in rubber bladder 2, and the outer shell 1 is realized;

[0041] Specifically, an external thread is formed on the outer wall of the capped round sleeve 31, and an internal thread is formed inside the corresponding outer shell 1. The capped round sleeve 31 and the outer shell 1 are fastened by means of threaded connection.

[0042] Specifically, a sealing ring slot 312 is formed on the inner circumferential surface of the capped round sleeve 31. Another sealing ring 315 is sleeved on the other end of the high-pressure hydrogen cylinder 3. The sealing ring 315 abuts between the sealing ring slot 312 and the other end of the high-pressure hydrogen cylinder 3, thereby realizing the sealing between the other end of the high-pressure hydrogen cylinder 3 and the capped round sleeve 31.

[0043] The working principle and process of the present utility model are as follows:

[0044] When water supply is required, the low-pressure gas passes through the low-pressure gas pipe 41 and 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. Then, the adjacent variable water storage cavity 37 is squeezed, 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 the high-pressure gas pipe 42.

[0045] The embodiments of the present utility model have been described in detail above, but the above content is only the preferred embodiment of the present utility model and cannot be considered as limiting the implementation scope 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 pipeline sealing mechanism for a water storage and supply device, characterized in that The gas outlet end of the high-pressure hydrogen cylinder (3) is fixedly connected with an air inlet and exhaust metal nozzle (32). The inner side of the connecting end of the built-in rubber bladder (2) is wedged with the air inlet and exhaust metal nozzle (32), and the outer side of the connecting end of the built-in rubber bladder (2) abuts against the outer shell (1). The metal nozzle locking part is fixedly connected with the air inlet and exhaust metal nozzle (32) and abuts against the outer side end of the outer shell (1); A variable gas storage cavity (36) is formed between the built-in rubber bladder (2) and the high-pressure hydrogen cylinder (3). The low-pressure gas flow channel (321) in the air inlet and exhaust metal nozzle (32) is communicated with the variable gas storage cavity (36), and the high-pressure gas flow channel (322) in the air inlet 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.

2. The pipeline sealing mechanism for water storage and supply equipment according to claim 1, characterized in that, The air inlet and exhaust metal nozzle (32) includes a mounting seat (323), a high-pressure pipe connecting head (324) and a low-pressure connecting head (325) integrally provided with the mounting seat (323); The first port of the low-pressure gas flow channel (321) is located on the side wall of the mounting seat (323), and the second port of the low-pressure gas flow channel (321) is located on the side wall of the low-pressure connecting head (325); The first port of the high-pressure gas flow channel (322) is located at the bottom of the high-pressure pipe connecting head (324), and the second port of the high-pressure gas flow channel (322) is located on the side wall of the high-pressure pipe connecting head (324).

3. The pipeline sealing mechanism for water storage and supply equipment according to claim 1, characterized in that, The second ports of the low-pressure gas flow channel (321) and the high-pressure gas flow channel (322) are respectively connected with a low-pressure air duct (41) and a high-pressure air duct (42).

4. The pipeline sealing mechanism for a water storage and supply device according to claim 1, characterized in that, A convex part (21) is constructed on the connecting end of the built-in rubber bladder (2). A ring-shaped embedding groove (33) corresponding to the convex part (21) is constructed on the mounting seat (323) of the air inlet and exhaust metal nozzle (32), and the ring-shaped embedding groove (33) faces the outer shell (1).

5. The pipeline sealing mechanism for a water storage and supply device according to claim 1, characterized in that, The metal nozzle locking part is a flange (34). An internal thread is constructed on the inner peripheral surface of the flange (34), and an external thread is constructed on the outer peripheral surface of the mounting seat (323) of the corresponding air inlet and exhaust metal nozzle (32).

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