High-pressure-bearing oxygen storage and supply system with skirt and manufacturing method of oxygen storage and supply system

Abstract

The invention provides a high-pressure-bearing oxygen storage and supply system with a skirt hem.The skirt hem is tubular, the gas cylinder connecting end, used for penetrating and sleeving a composite gas cylinder, of the skirt hem is of an elastic deformation structure, the two ends of the composite gas cylinder are connected with the skirt hem in a clamped and embedded mode, and a cabin section connecting through hole is formed in the cabin section connecting end, used for connecting a front cabin and a rear cabin, of the skirt hem; the front cabin and the rear cabin are connected by adding the skirt edge, and the skirt edge and the composite gas cylinder are connected in a clamping and embedding manner, so that the connection requirement of the front cabin, the rear cabin and the composite gas cylinder is met, the integrity of the composite gas cylinder is not damaged, and the overall strength of the composite gas cylinder is ensured; a first-order composite layer is coated on the circumference of a composite gas cylinder, the composite gas cylinder is subjected to pressure-bearing enhancement in the radial direction and the axial direction in an annular and spiral combined mode, after the two ends of the composite gas cylinder are connected with skirt edges, a second-order composite layer is coated on the peripheries of the gas cylinder connecting ends of the first-order composite layer and the skirt edges, and the skirt edges and the composite gas cylinder are subjected to pressure-bearing enhancement. Therefore, the pressure bearing performance of the whole oxygen storage and supply system in deep water is met.

Description

Technical Field

[0001] The invention relates to the technical field of high-pressure oxygen storage and supply, and in particular to a high-pressure oxygen storage and supply system with a skirt and a method for manufacturing the oxygen storage and supply system. Background Art

[0002] The high-pressure oxygen system is used in the power system of underwater devices as a pure oxygen supply source. 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. A high-pressure resistant metal conduit that penetrates the composite gas cylinder is set at the axial middle position of the composite gas cylinder and is used as a bottle-penetrating channel for cables. Both ends are connected to the front and rear compartments through a connecting structure.

[0003] In the prior art, composite gas cylinders are usually placed in a structural cabin, and composite gas cylinders embedded in a metal skirt that acts as a cabin body have not been used. Although connecting structures are directly constructed on both ends of the composite gas cylinder, although this can also achieve connection with the front and rear cabin sections, there are design problems and molding process problems with the connection strength between the metal skirt and the composite material and the overall load-bearing capacity of the composite gas cylinder. Summary of the invention

[0004] In view of this, the problem to be solved by the present invention is to provide a high-pressure-bearing oxygen storage and supply system with a skirt.

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

[0006] A high-pressure oxygen storage and supply system with a skirt. The skirt is tubular, and the gas cylinder connecting end of the skirt for inserting a composite gas cylinder is an elastically deformable structure. The two ends of the composite gas cylinder are snap-connected to the skirt, and the cabin connecting end of the skirt for connecting the front and rear cabins is provided with cabin connecting through holes.

[0007] An inner liner positioning column is constructed on the outer circumference of the composite gas cylinder, and an annular inner concave embedding groove corresponding to the inner liner positioning column is constructed on the inner circumference of the skirt.

[0008] The connecting end of the gas cylinder is a comb-shaped structure with uniformly distributed deformation gaps, and the transverse cross-sectional area of ​​the connecting end of the gas cylinder decreases in a direction approaching the composite gas cylinder.

[0009] The outer circumference of the composite gas cylinder is covered with a first-order composite layer.

[0010] The first-order composite layer and the outer periphery of the gas cylinder connection end are coated with a second-order composite layer.

[0011] A groove is configured on the outer periphery of the skirt, and the compartment connecting through-hole is configured in the axial direction of the skirt and penetrates through the side wall of the groove and is communicated with the inner cavity of the groove.

[0012] The advantages and positive effects of the present invention are:

[0013] (1) The front and rear compartments are connected by adding a skirt, and the skirt and the composite gas cylinder are connected by a snap-in connection method, which not only meets the connection requirements between the front and rear compartments and the composite gas cylinder, but also does not destroy the integrity of the composite gas cylinder, thereby ensuring the overall strength of the composite gas cylinder.

[0014] (2) A first-order composite layer is coated on the circumference of the composite gas cylinder, and the composite gas cylinder is pressure-reinforced in radial and axial directions by combining annular and spiral directions. After the two ends of the composite gas cylinder are connected to the skirt, a second-order composite layer is coated on the outer circumference of the first-order composite layer and the gas cylinder connection end of the skirt to enhance the pressure resistance of the skirt and the composite gas cylinder, thereby meeting the pressure resistance of the entire oxygen storage and supply system in deep water. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0016] In the attached picture:

[0017] Figure 1 It is an overall structural diagram of a high-pressure oxygen storage and supply system with a skirt;

[0018] Figure 2 It is a structural diagram of the skirts connected at both ends of the composite gas cylinder;

[0019] Figure 3 This is an enlarged view of the compartment connection perforation on the compartment connection end;

[0020] Figure 4 It is a structural diagram of the skirt;

[0021] Figure 5 It is an enlarged view of the skirt edge in the annular recessed groove;

[0022] Figure 6 yes Figure 1 Structural diagram of hiding the skirt at one end;

[0023] Figure 7 This is an enlarged view of the liner positioning column;

[0024] In the figure: a composite gas cylinder 2, a gas cylinder connection end 14, a compartment connection end 15, a compartment connection through hole 16, a groove 17, a skirt 18, a deformation gap 19, an inner liner positioning column 27, an annular inner concave groove 28, and a second-order composite layer 52. DETAILED DESCRIPTION

[0025] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0026] 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 component centered. 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 component centered. 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 component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. 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 related listed items.

[0028] like Figures 1 to 7 As shown, the present invention provides a high-pressure oxygen storage and supply system with skirts. The skirts 18 are tubular and are provided with two groups. The gas cylinder connecting end 14 of the skirt 18 used to be inserted into the composite gas cylinder 2 is an elastically deformable structure, so that the skirt 18 can be inserted into the position of being embedded with the composite gas cylinder 2 to achieve the embedded connection between the front and rear ends of the composite gas cylinder 2 and the two groups of skirts 18. The cabin connecting end 15 of the skirt 18 used to connect the front and rear cabins is provided with a cabin connecting through hole 16. Bolts penetrate the through holes provided on the front and rear cabins and the cabin connecting through holes 16 and then threadedly connect nuts to achieve the connection between the skirt 18 and the front and rear cabins.

[0029] This solution connects the front and rear cabins by adding a skirt 18, and the skirt 18 and the composite gas cylinder 2 are connected by a snap-fit ​​connection, which not only meets the connection requirements between the front and rear cabins and the composite gas cylinder 2, but also does not damage the integrity of the composite gas cylinder 2, ensuring the overall strength of the composite gas cylinder 2. In order to solve the pressure-bearing problem of the entire oxygen storage and supply system in deep water after adding the skirt 18, this solution creatively proposes a double-order fiber full winding structure, that is, a first-order composite layer is coated on the periphery of the composite gas cylinder 2, and after the two ends of the composite gas cylinder 2 are connected to the skirt 18, a second-order composite layer 52 is coated on the periphery of the first-order composite layer and the gas cylinder connection end 14 of the skirt 18;

[0030] Specifically, during winding, the cylindrical body of the composite gas cylinder 2 is firstly wound circumferentially, and then the arc-shaped bottle end and the cylindrical body of the composite gas cylinder 2 are spirally wound, and then the composite gas cylinder 2 is pressure-reinforced in radial and axial directions by combining circumferential and spiral directions. Then, the second-order composite layer 52 is circumferentially wound on the first-order composite layer and the gas cylinder connecting end 14 of the skirt 18 to enhance the pressure-reinforced skirt 18 and the composite gas cylinder 2, so as to meet the pressure-reinforced capacity of the entire oxygen storage and supply system in deep water.

[0031] Specifically, an inner liner positioning column 27 is constructed on the outer circumference of the composite gas cylinder 2, and an annular inner concave groove 28 corresponding to the inner liner positioning column 27 is constructed on the inner circumference of the skirt 18;

[0032] When putting on the sleeve, the elastic property of the gas cylinder connection end 14 is utilized to make the bottom surface of the skirt 18 slide along the inner liner positioning column 27 until the positioning column 27 falls into the annular inner concave groove 28, and the gas cylinder connection end 14 returns to the state before deformation, and the annular inner concave groove 28 is tightly embedded in the positioning column 27, thereby realizing the connection between the composite gas cylinder 2 and the skirt 18.

[0033] Specifically, the gas cylinder connecting end 14 is a comb-shaped structure with uniformly distributed deformation gaps 19. The transverse cross-sectional area of ​​the gas cylinder connecting end 14 decreases in the direction approaching the composite gas cylinder 2. The inner diameter of the entire skirt 18 is smaller than the outer diameter. When the composite gas cylinder 2 is connected through the sleeve, the deformation gap 19 changes, thereby realizing the deformation of the gas cylinder connecting end 14.

[0034] Specifically, a groove 17 is constructed on the outer periphery of the skirt 18, and the groove 17 provides space for the connection and installation of bolts and nuts. The cabin section connecting through hole 16 is constructed in the axial direction of the skirt 18 and passes through the side wall of the groove 17 and is connected with the inner cavity of the groove 17. After the bolt passes through the through holes opened on the front and rear cabins and the cabin section connecting through hole 16 on the skirt 18, the nut is threadedly connected in the groove 17, thereby realizing the fixation of the front and rear cabins and the skirt 18.

[0035] Furthermore, the present invention also provides a method for manufacturing a high-pressure oxygen storage and supply system with a skirt, comprising the following steps:

[0036] S1: coating a first-order composite layer on the circumference of the composite gas cylinder 2;

[0037] S2: Connect the skirt 18 to both ends of the composite gas cylinder 2 by snapping;

[0038] S3: Covering the first-order composite layer and the outer periphery of the gas cylinder connection end 14 with a second-order composite layer 52 .

[0039] The S1 comprises:

[0040] S11: a cylindrical body of the hoop-wound composite gas cylinder 2;

[0041] S12: spirally wrapping the arc-shaped bottle end and the cylindrical bottle body of the composite gas cylinder 2 and the positioning column 27 on the cylindrical bottle body.

[0042] The S3 includes:

[0043] The second-order composite layer 52 is hoop-wound around the first-order composite layer and the cylinder connection end 14 of the skirt 18 .

[0044] The working principle and working process of the present invention are as follows:

[0045] Before installing the skirt 18, firstly coat the outer circumference of the composite gas cylinder 2 with a first-order composite layer, and then align the gas cylinder connecting end 14 of the skirt 18 with the two ends of the composite gas cylinder 2 for sleeve insertion. When the composite gas cylinder 2 is sleeved and connected, the deformation gap 19 changes, thereby realizing the deformation of the gas cylinder connecting end 14, so that the bottom surface of the skirt 18 slides along the inner liner positioning column 27 until the positioning column 27 falls into the annular inner concave embedding groove 28 on the inner circumference of the skirt 18, and the gas cylinder connecting end 14 restores the state before deformation, and the annular inner concave embedding groove 28 is tightly embedded in the positioning column 27 to realize the fixation of the composite gas cylinder 2 and the skirt 18, and then coat the second-order composite layer 52 on the outer circumference of the first-order composite layer and the gas cylinder connecting end 14 of the skirt 18, and finally use bolts to penetrate the through holes opened on the front and rear cabins and the cabin section connection through holes 16 on the skirt 18, and thread nuts are connected in the grooves 17 to realize the fixation of the front and rear cabins and the skirt 18.

[0046] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot 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 high pressure oxygen storage and supply system with a skirt, characterized in that: The invention comprises a skirt (18) of a tubular structure, wherein the outer circumference of the composite gas cylinder (2) is covered with a first-order composite layer, the skirt (18) is used to insert the gas cylinder connection end (14) of the composite gas cylinder (2) into an elastically deformable structure, the two ends of the composite gas cylinder (2) are connected to the skirt (18) by snap-fitting, and the outer circumference of the first-order composite layer and the gas cylinder connection end (14) is covered with a second-order composite layer (52).

2. A high pressure-bearing oxygen storage and supply system with a skirt according to claim 1, characterized in that: An inner liner positioning column (27) is constructed on the outer periphery of the composite gas cylinder (2), and an annular inner concave groove (28) corresponding to the inner liner positioning column (27) is constructed on the inner periphery of the skirt (18).

3. A high pressure-bearing oxygen storage and supply system with a skirt according to claim 1, characterized in that: The gas cylinder connection end (14) is a comb-shaped structure with uniformly distributed deformation gaps (19), and the transverse cross-sectional area of ​​the gas cylinder connection end (14) decreases in a direction approaching the composite gas cylinder (2).

4. A high pressure-bearing oxygen storage and supply system with a skirt according to claim 1, characterized in that: The cabin section connection through-hole (16) is provided on the cabin section connection end (15) of the skirt (18) for connecting the front and rear cabins.

5. A high pressure-bearing oxygen storage and supply system with a skirt according to claim 4, characterized in that: A groove (17) is constructed on the outer periphery of the skirt (18); the cabin section connecting through hole (16) is constructed in the axial direction of the skirt (18) and penetrates through the side wall of the groove (17) and is connected to the inner cavity of the groove (17); and a cabin section connecting through hole (16) is provided on the cabin section connecting end (15) of the skirt (18) for connecting the front and rear cabins.

6. A method for manufacturing a high-pressure oxygen storage and supply system with a skirt, characterized in that: The steps include: S1: coating a first-order composite layer on the circumference of the composite gas cylinder (2); S2: Connecting the skirt (18) to the two ends of the composite gas cylinder (2) by snapping; S3: Covering the outer periphery of the first-order composite layer and the gas cylinder connection end (14) with a second-order composite layer (52).

7. The method for manufacturing a high-pressure oxygen storage and supply system with a skirt according to claim 6, characterized in that: Said S1 comprises: S11: a cylindrical body of the hoop-wound composite gas cylinder (2); S12: The arc-shaped bottle end and the cylindrical bottle body of the spirally wound composite gas cylinder (2).

8. The method for manufacturing a high-pressure oxygen storage and supply system with a skirt according to claim 7, characterized in that: The S3 includes: The second-order composite layer (52) is circumferentially wound around the first-order composite layer and the gas cylinder connection end (14) of the skirt (18).

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