Composite material tank head

Abstract

The utility model discloses a kind of composite material storage tank end socket, including first end socket and second end socket, the second end socket is fixed in the inside of the first end socket, the first end socket is convex, the second end socket is convex, the outer surface of the first end socket is set composite material layer. The first end socket includes first flange ring and first convex cover, the inner ring of the first flange ring is fixedly connected with the outer ring of the first convex cover and integrally formed. The utility model is two-layer end socket structure, and sets composite material layer on the end socket of outside, increases pressure-bearing capacity.

Description

Technical Field

[0001] This utility model relates to end caps, specifically a composite material storage tank end cap. Background Technology

[0002] High-pressure gas storage tanks require specially designed heads to withstand the high-pressure impact of the internal gas. Current high-pressure storage tank heads are arc-shaped structures made of metal, which have weak pressure-bearing capacity. Utility Model Content

[0003] To address the shortcomings of the prior art, this invention provides a composite material tank head. This invention features a two-layer head structure with a composite material layer on the outer head to increase pressure resistance.

[0004] To achieve the above technical objectives, the present invention adopts the following technical solution: a composite material storage tank end cap, comprising a first end cap and a second end cap, the second end cap being fixed to the inner side of the first end cap, the first end cap being convex, the second end cap being convex, and a composite material layer being provided on the outer surface of the first end cap.

[0005] The first end cap includes a first flange ring and a first convex cover, wherein the inner ring of the first flange ring is fixedly connected to the outer ring of the first convex cover and is integrally formed.

[0006] The first flange ring is provided with a first fixing hole, and the first convex cover is provided with a first inlet / outlet pipe hole and a first pressure hole.

[0007] A groove is provided on the inner side of the lower surface of the first flange ring, and the groove is provided with a first sealing ring groove and a first fastening hole.

[0008] The second end cap includes a second flange ring and a second convex cover. The inner ring of the second flange ring is fixedly connected to the outer ring of the second convex cover and is integrally formed.

[0009] The second flange ring is embedded in the groove, and the second flange ring is provided with a second fastening hole for fastening connection with the first fastening hole; the second flange ring is provided with a second sealing ring groove for mating with the first sealing ring groove.

[0010] The second convex cover is provided with a second inlet / outlet pipe hole and a second pressure hole.

[0011] There is a gap between the outer surface of the second convex cover and the inner surface of the first convex cover.

[0012] It also includes an inlet / outlet pipe and a pressure pipe, wherein the inlet / outlet pipe is connected to the second inlet / outlet pipe hole and the first inlet / outlet pipe hole, and the pressure pipe is connected to the second pressure hole and the first pressure hole.

[0013] The composite material layer includes an interface treatment layer, an adhesive layer, a buffer layer, a structural layer, and a protective layer arranged in sequence, with the interface treatment layer disposed on the outer surface of the first end cap.

[0014] In summary, this utility model achieves the following technical effects: This utility model sets the end cap as an inner end cap and an outer end cap, and sets a composite material layer on the first end cap to enhance the strength of the end cap and improve its compressive strength; This invention combines stainless steel with composite materials. Stainless steel has high reliability and sealing performance, while the composite material layer is lighter and enhances the performance of the stainless steel end cap. The combination of the two improves the pressure-bearing capacity of the end cap. Attached Figure Description

[0015] Figure 1 It is a composite material tank head; Figure 2 This is a schematic diagram of the first end cap; Figure 3 This is a schematic diagram of the second head; Figure 4 yes Figure 1 A magnified view of a portion of the image. Detailed Implementation

[0016] The present invention will be further described in detail below with reference to the accompanying drawings.

[0017] This specific embodiment is merely an explanation of the present utility model and is not intended to limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but as long as they are within the scope of the claims of the present utility model, they are protected by patent law.

[0018] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0022] Example: Figure 1 It is a composite material tank head, including a first head 1 and a second head 3. The second head 3 is fixed to the inner side of the first head 1. The first head 1 is convex and the second head 3 is convex. A composite material layer 2 is provided on the outer surface of the first head 1.

[0023] This invention sets the end cap as an inner end cap and an outer end cap, and sets a composite material layer on the first end cap to enhance the strength of the end cap and improve its compressive strength.

[0024] Both the first and second heads are made of stainless steel plates.

[0025] Figure 2 This is a schematic diagram of the first end cap 1, which includes a first flange ring 11 and a first convex cover 12. The inner ring of the first flange ring 11 is fixedly connected to the outer ring of the first convex cover 12 and is integrally formed.

[0026] The first flange ring 11 is provided with a first fixing hole 110, and the first convex cover 12 is provided with a first inlet / outlet pipe hole 120 and a first pressure hole 121.

[0027] A groove 112 is provided on the inner side of the lower surface of the first flange ring 11, and the groove 112 is provided with a first sealing ring groove 114 and a first fastening hole 113.

[0028] Figure 3 This is a schematic diagram of the second end cap 3. The second end cap 3 includes a second flange ring 31 and a second convex cover 32. The inner ring of the second flange ring 31 is fixedly connected to the outer ring of the second convex cover 32 and is integrally formed.

[0029] The second flange ring 31 is embedded in the groove 112, and the second flange ring 31 is provided with a second fastening hole 310 for fastening connection with the first fastening hole 113; the second flange ring 31 is provided with a second sealing ring groove 311 for mating with the first sealing ring groove 114.

[0030] The second convex cover 32 is provided with a second inlet / outlet pipe hole 320 and a second pressure hole 321.

[0031] There is a gap between the outer surface of the second convex cover 32 and the inner surface of the first convex cover 12.

[0032] It also includes an inlet / outlet pipe 4 and a pressure pipe 5. The inlet / outlet pipe 4 is connected to the second inlet / outlet pipe hole 320 and the first inlet / outlet pipe hole 120, and the pressure pipe 5 is connected to the second pressure hole 321 and the first pressure hole 121.

[0033] This invention features a first end cap with a large convex shape and a second end cap with a small convex shape, each possessing different compressive strengths. Combining the two enhances compressive strength. The second end cap is securely connected using the first fastening hole 113 and the second fastening hole 310. The second flange 31 of the second end cap is fixed inside the first flange, with the lower surface of the second flange flush with the lower surface of the first flange. Simultaneously, two sealing rings are installed in the second sealing ring groove 311 and the first sealing ring groove 114 to improve sealing performance and prevent leakage. The inlet / outlet pipe 4 is pre-welded to the second inlet / outlet pipe hole 320 of the second end cap, and the pressure pipe 5 is pre-welded to the second pressure hole 321 of the second end cap. The second end cap is then placed inside the first end cap, and the inlet / outlet pipe 4 and pressure pipe 5 are passed through the first inlet / outlet pipe hole 120 and the first pressure hole 121 and welded together. Bolts are used to fasten the second flange to the first flange. After the second end cap and the first end cap are fixed, a composite material layer 2 is applied to the outer surface of the first end cap.

[0034] Figure 4 yes Figure 1The enlarged schematic diagram shows that the composite material layer 2 includes an interface treatment layer 201, an adhesive layer 202, a buffer layer 203, a structural layer 204, and a protective layer 205 arranged sequentially. The interface treatment layer 201 is disposed on the outer surface of the first end cap 1.

[0035] This invention combines stainless steel with composite materials. Stainless steel has high reliability and sealing performance, while the composite material layer is lighter and enhances the performance of the stainless steel end cap. The combination of the two improves the pressure-bearing capacity of the end cap.

[0036] The interface treatment layer 201 of this utility model uses a coupling agent, the adhesive layer 202 uses a modified epoxy film, the buffer layer 203 uses high-temperature resistant epoxy resin, the structural layer 204 uses epoxy resin, and the protective layer 205 uses a polyurethane topcoat. The coupling agent can form a chemical film on the outer surface of the first end cap after sanding, improving adhesion. The modified epoxy film acts as an adhesive layer, improving the adhesion between the first end cap and the resin. The high-temperature resistant epoxy resin acts as a stress transition layer, while preventing the medium inside the can from penetrating along the fibers. The epoxy resin acts as a pressure-bearing layer, and the polyurethane topcoat provides protection. The materials used in the interface treatment layer 201, adhesive layer 202, buffer layer 203, structural layer 204, and protective layer 205 are all existing technologies, and their manufacturing methods, processes, and performance will not be described in detail.

[0037] After the composite material layer and the two end caps are fabricated, a first fixing hole 110 is opened on the first flange 11 of the first end cap for connecting the equipment.

[0038] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model shall fall within the scope of the technical solution of the present utility model.

Claims

1. A composite material storage tank end cap, characterized in that: It includes a first end cap (1) and a second end cap (3), the second end cap (3) is fixed to the inside of the first end cap (1), the first end cap (1) is convex, the second end cap (3) is convex, and a composite material layer (2) is provided on the outer surface of the first end cap (1).

2. The composite material tank head according to claim 1, characterized in that: The first end cap (1) includes a first flange ring (11) and a first convex cover (12). The inner ring of the first flange ring (11) is fixedly connected to the outer ring of the first convex cover (12) and is integrally formed.

3. The composite material tank head according to claim 2, characterized in that: The first flange ring (11) is provided with a first fixing hole (110), and the first convex cover (12) is provided with a first inlet / outlet pipe hole (120) and a first pressure hole (121).

4. A composite material tank head according to claim 3, characterized in that: A groove (112) is provided on the inner side of the lower surface of the first flange ring (11), and the groove (112) is provided with a first sealing ring groove (114) and a first fastening hole (113).

5. A composite material tank head according to claim 4, characterized in that: The second end cap (3) includes a second flange ring (31) and a second convex cover (32). The inner ring of the second flange ring (31) is fixedly connected to the outer ring of the second convex cover (32) and is integrally formed.

6. A composite material tank head according to claim 5, characterized in that: The second flange ring (31) is embedded in the groove (112), and the second flange ring (31) is provided with a second fastening hole (310) for fastening connection with the first fastening hole (113); the second flange ring (31) is provided with a second sealing ring groove (311) for docking with the first sealing ring groove (114).

7. A composite material storage tank head according to claim 6, characterized in that: The second convex cover (32) is provided with a second inlet / outlet pipe hole (320) and a second pressure hole (321).

8. A composite material storage tank head according to claim 7, characterized in that: There is a gap between the outer surface of the second convex cover (32) and the inner surface of the first convex cover (12).

9. A composite material storage tank head according to claim 8, characterized in that: It also includes an inlet / outlet pipe (4) and a pressure pipe (5), wherein the inlet / outlet pipe (4) is connected to the second inlet / outlet hole (320) and the first inlet / outlet hole (120), and the pressure pipe (5) is connected to the second pressure hole (321) and the first pressure hole (121).

10. A composite material storage tank head according to claim 1, characterized in that: The composite material layer (2) includes an interface treatment layer (201), an adhesive layer (202), a buffer layer (203), a structural layer (204), and a protective layer (205) arranged in sequence, with the interface treatment layer (201) disposed on the outer surface of the first end cap (1).

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