Diffuse type inflation structure of hyperbaric oxygen system

Abstract

The utility model provides a diffuse type inflation structure of a high-pressure oxygen system, a plurality of flow guide pipes are uniformly arranged around a cable penetrating pipe along the axial direction of a composite gas cylinder, the plurality of flow guide pipes are uniformly arranged around the cable penetrating pipe along the axial direction of the composite gas cylinder on the inner side of a bottle mouth at the head end of the composite gas cylinder, and the flow guide pipes are of cylindrical structures. A plurality of air passing openings communicated with an inner cavity of the flow guide pipe are formed in the periphery of the flow guide pipe; the inside of the composite gas cylinder is uniformly pressed during inflation, compared with the design of a single flow guide pipe in the prior art, the flow speed of gas can be reduced, the inside of the composite gas cylinder is prevented from being too fast heated, and due to the arrangement of the gas passing opening, high-pressure oxygen can be uniformly diffused into the composite gas cylinder in the radial direction of the composite gas cylinder during inflation. The airflow direction and the flow speed in the inflation and deflation process are controlled, so that the temperature rise change of the composite gas cylinder is controlled, and the overall safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of storing and supplying high-pressure oxygen, in particular to a diffused inflation structure of a high-pressure oxygen system. Background Art

[0002] The hyperbaric oxygen system is used in the power system of underwater devices as a source of pure oxygen supply. It uses a composite gas cylinder as an oxygen storage container. At the same time, the composite gas cylinder is used as a structural compartment of the underwater device. The two ends are connected to the front and rear compartments through a sealed connection structure and are sealed. A high-pressure resistant metal conduit is set through the composite gas cylinder at the axial middle position and serves as a bottle-through channel for the cable. A guide tube connected to the external inlet and exhaust pipes is set in the inner cavity of the composite gas cylinder for inflation and exhaust.

[0003] In the prior art, the nozzle of the guide tube is designed to face the axial inner bottom of the composite gas cylinder. This design means that when the composite gas cylinder is filled with high-pressure oxygen, the high-pressure oxygen will directly rush to the bottom of the composite gas cylinder for a long time, thereby reducing the service life of the composite gas cylinder. In addition, due to the fast flow rate, the temperature inside the composite gas cylinder is accelerated, which poses a safety hazard to the entire high-pressure oxygen system. Utility Model Content

[0004] In view of this, the problem to be solved by the present invention is to provide a diffused inflation structure of a hyperbaric oxygen system.

[0005] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0006] A diffused inflation structure for a hyperbaric oxygen system includes a plurality of guide tubes arranged on the inner side of the nozzle of the first end of a composite gas cylinder and uniformly surrounding the cable through-tube along the axial direction of the composite gas cylinder. The guide tubes are cylindrical in structure, and a plurality of gas ports communicating with the inner cavity of the guide tubes are provided on the outer circumference of the guide tubes.

[0007] A filter cover is sleeved on the closed end of the guide pipe, and the filter cover covers the air outlet.

[0008] A plurality of slots adapted to the flow guide tube are constructed on the inner side of the first end of the bottle mouth of the composite gas cylinder, and the flow guide tube is fixed in the slots.

[0009] An annular groove is constructed on the outer end of the first end of the composite gas cylinder and is sunken along the axial direction of the composite gas cylinder. An axial sealing ring plate is fixed at the top opening of the annular groove and then encloses an annular flow channel with the annular groove. The annular flow channel is connected to the guide pipe.

[0010] The sidewall of the annular groove is provided with a first air passing hole, and the bottom of the annular groove is provided with a second air passing hole; the annular groove is connected with the air inlet and outlet pipe through the first air passing hole and is fixedly connected with the flow guide pipe through the second air passing hole.

[0011] The pipe part of the cable penetrating pipe passes through the composite gas cylinder and is connected with the inner periphery of the head end bottle mouth and the tail end bottle mouth of the composite gas cylinder in tight abutment through the sealing ring.

[0012] The utility model has the advantages and positive effects that:

[0013] The plurality of flow guide pipes are arranged along the axial direction of the composite gas cylinder and uniformly surround the cable penetrating pipe, so that the composite gas cylinder is uniformly pressed during inflation, and compared with the single flow guide pipe design in the prior art, the gas flow rate can be reduced to avoid rapid temperature rise in the composite gas cylinder, and the air passing hole can make the high-pressure oxygen uniformly diffuse to the inside of the composite gas cylinder in the radial direction of the composite gas cylinder during inflation, so as to control the airflow direction and flow rate during inflation and deflation to control the temperature rise of the composite gas cylinder and improve the overall safety. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are used to provide a further understanding of the utility model and constitute a part of the specification, are used to explain the utility model together with embodiments of the utility model and do not constitute limitations on the utility model. In the drawings:

[0015] Figure 1 It is a sectional view of the diffusion type inflation structure of the high-pressure oxygen system of the utility model;

[0016] Figure 2 It is Figure 1 It is an enlarged view at the head end bottle mouth;

[0017] Figure 3 It is an enlarged view after hiding the axial sealing ring plate and the cable penetrating pipe at the head end bottle mouth

[0018] Figure 4 It is Figure 1 It is an enlarged view at the tail end bottle mouth;

[0019] Figure 5 It is a whole structure view of the cable penetrating pipe sealing structure of the high-pressure oxygen system of the utility model;

[0020] In the drawing: cable penetrating pipe 1, pipe part 11, cap part 12, composite gas cylinder 2, embedded groove 21, stepped platform 22, annular groove 23, second air passing hole 24, axial sealing ring plate 25, flow guide pipe 26, sealing gasket 31, threaded compression ring 32, sealing ring 33, air inlet and outlet pipe 41. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are intended only to describe specific embodiments and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figures 1 to 5 As shown, the present invention provides a diffused gas filling structure for a high-pressure oxygen system. On the inner side of the nozzle of the composite gas cylinder 2, a plurality of guide tubes 26 are evenly arranged along the axial direction of the composite gas cylinder 2 around the cable tube 1. The guide tubes 26 are cylindrical in structure, and a plurality of gas ports 261 are opened on the outer circumference of the guide tubes 26 and communicate with the inner cavity of the guide tubes 26.

[0025] Since the cable conduit 1 is arranged at the axial center position of the composite gas cylinder 2, a plurality of guide tubes 26 are evenly arranged around the cable conduit 1, so that the plurality of guide tubes 26 can be evenly arranged in the composite gas cylinder 2, so that the interior of the composite gas cylinder 2 is evenly pressurized during inflation. Compared with the existing design of a single guide tube, the gas flow rate can be reduced to avoid excessive temperature rise inside the composite gas cylinder 2. The setting of the gas port 261 can make the high-pressure oxygen diffuse evenly from the radial direction of the composite gas cylinder 2 to the interior of the composite gas cylinder 2 during inflation, thereby controlling the airflow direction and flow rate during the inflation and deflation process, thereby controlling the temperature rise change of the composite gas cylinder 2 and improving the overall safety.

[0026] Specifically, the closed end of the flow guide pipe 26 is sleeved with a filter cover 27, the filter cover 27 covers the air inlet 261, and the filter cover 27 is used to filter the impurity particles in the high-pressure oxygen, so as to avoid the impurity particles from entering the composite gas cylinder 2 and damaging the composite gas cylinder 2.

[0027] Specifically, a plurality of clamping grooves matched with the flow guide pipe 26 are arranged on the inner side of the first end nozzle of the composite gas cylinder 2, and the flow guide pipe 26 is fixedly arranged in the clamping grooves.

[0028] Specifically, an annular groove 23 is arranged on the outer side of the first end nozzle of the composite gas cylinder 2 and sinks along the axial direction of the composite gas cylinder 2, an axial sealing ring plate 25 is welded at the top opening of the annular groove 23 and surrounds the annular groove 23 to form an annular flow channel, the annular flow channel is connected with the flow guide pipe 26, and the high-pressure oxygen is uniformly delivered to the flow guide pipe 26 connected with the annular flow channel through the annular flow channel, a first air inlet is arranged on the side wall of the annular groove 23, a second air inlet is arranged on the bottom of the annular groove 23, the annular groove 23 is connected with the air inlet and outlet pipe 41 through the first air inlet and is fixedly connected with the flow guide pipe 26 through the second air inlet 24, and the air inlet and outlet pipe 41 is connected with an air inlet valve and an air outlet valve.

[0029] When the composite gas cylinder 2 is filled with gas, the air inlet valve is opened, the high-pressure oxygen enters the annular flow channel through the air inlet and outlet pipe 41 through the first air inlet, then enters the flow guide pipe 26 through the second air inlet 24, and is discharged into the inner cavity of the composite gas cylinder 2 through the flow guide pipe 26.

[0030] When the composite gas cylinder 2 supplies gas, the air outlet valve is opened, and the high-pressure oxygen is sequentially discharged through the flow guide pipe 26, the annular flow channel, the air inlet and outlet pipe 41.

[0031] Specifically, the pipe part 11 of the cable pipe 1 penetrates through the composite gas cylinder 2 and is tightly connected with the inner periphery of the first end nozzle and the tail end nozzle of the composite gas cylinder 2 through the sealing ring 33.

[0032] The transverse section of the cable pipe 1 is T-shaped and includes the pipe part 11 and the cap part 12 arranged at the end side of the pipe part 11, the pipe part 11 penetrates through the composite gas cylinder 2 and is tightly connected with the inner periphery of the first end nozzle and the tail end nozzle of the composite gas cylinder 2 through the sealing ring 33, so as to realize the sealing between the pipe part 11 and the first end nozzle and the tail end nozzle, a stepped platform 22 is arranged in the tail end nozzle of the composite gas cylinder 2, the two ends of the cap part 12 are tightly connected with the stepped platform 22 and the locking part respectively, the locking part is detachably connected with the inner periphery of the tail end nozzle of the composite gas cylinder 2, and the stepped platform 22 and the locking part clamp the cap part 12 to axially limit the cable pipe 1, so as to ensure the sealing and avoid the cable pipe 1 from separating from the composite gas cylinder 2.

[0033] The locking member can be a threaded pressure ring, and the inner circumference of the tail end bottle mouth is constructed with a reverse thread that is compatible with the threaded pressure ring, thereby achieving fastening and separation through threaded connection.

[0034] The working principle and working process of this utility model are as follows:

[0035] During inflation, the air inlet valve is opened, and high-pressure oxygen enters the annular flow channel through the air inlet and outlet pipes 41 via the first air hole, then evenly enters each guide tube 26 through the second air hole 24, and evenly diffuses into the inner cavity of the composite gas cylinder 2 through the air outlet 261 on the side wall of the guide tube 26;

[0036] When supplying air, the exhaust valve is opened, and high-pressure oxygen enters the cylindrical structure of the guide tube 26 through the air port 261. The high-pressure oxygen in each guide tube 26 is gathered in the annular flow channel through the second air hole 24 and discharged through the first air hole through the intake and exhaust pipe 41.

[0037] The above embodiments of the present invention are described in detail. However, the above contents are only preferred embodiments of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A diffused inflation structure of a hyperbaric oxygen system, characterized in that: On the inner side of the first end of the composite gas cylinder (2), a plurality of flow guide tubes (26) are evenly arranged around the cable threading tube (1) along the axial direction of the composite gas cylinder (2), and the flow guide tube (26) is of cylindrical structure. A plurality of gas holes (261) communicating with the inner cavity of the flow guide tube (26) are provided on the outer periphery of the flow guide tube (26); the transverse cross section of the cable threading tube (1) is of T-shaped structure, comprising a tube portion (11) and a cap portion (12) configured on the end side of the tube portion (11); the tube portion (11) passes through the composite gas cylinder (2) and is tightly connected to the inner periphery of the first end and the tail end of the composite gas cylinder (2) through a sealing ring (33), thereby achieving sealing between the tube portion (11) and the first end and the tail end of the composite gas cylinder (2). A stepped platform (22) is constructed in the bottle mouth, and the two ends of the cap (12) are tightly connected to the stepped platform (22) and the locking piece respectively. The locking piece is detachably connected to the inner periphery of the tail end bottle mouth of the composite gas cylinder (2), and then the stepped platform (22) and the locking piece are clamped against the cap (12) to play an axial limiting role on the cable tube (1), and the cable tube (1) can be prevented from being separated from the composite gas cylinder (2) while ensuring the sealing performance; a first air hole is constructed on the side wall of the annular groove (23), and a second air hole is constructed on the bottom of the annular groove (23); the annular groove (23) is connected to the air inlet and outlet pipes (41) through the first air hole, and is fixedly connected to the guide pipe (26) through the second air hole (24).

2. The diffused gas filling structure of a hyperbaric oxygen system according to claim 1, characterized in that: A filter cover (27) is mounted on the closed end of the flow guide tube (26), and the filter cover (27) covers the air outlet (261).

3. The diffused gas filling structure of a hyperbaric oxygen system according to claim 1, characterized in that: A plurality of slots adapted to the guide tube (26) are constructed on the inner side of the first end of the bottle mouth of the composite gas cylinder (2), and the guide tube (26) is fixed in the slots.

4. The diffused gas filling structure of a hyperbaric oxygen system according to claim 1, characterized in that: An annular groove (23) is constructed on the outer side of the first end of the composite gas cylinder (2) and is sunken in the axial direction of the composite gas cylinder (2). An axial sealing ring plate (25) is fixed at the top opening of the annular groove (23) and encloses an annular flow channel with the annular groove (23). The annular flow channel is connected to the guide pipe (26).

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