Novel energy accumulator structure

Abstract

The utility model discloses a novel energy accumulator structure, relates to the technical field of energy accumulators, and solves the problem that leakage or failure is easily caused by insufficient material strength or sealing design defects of a traditional sealing structure of an energy accumulator in an ultrahigh pressure environment. The utility model relates to an oil-gas separator, in particular to an oil-gas separator which solves the problems that a copper alloy sealing sleeve is likely to be abraded under high-frequency pressure fluctuation, rubber type sealing materials are prone to aging and cracking, and oil-gas mixing or energy loss is caused, and comprises a shell and a mandrel, end covers are connected to the interiors of the two ends of the shell in a sealed mode, and connecting pipes are fixedly installed in the end covers. One end of the connecting pipe penetrates through the interior of the end cover to enter the interior of the shell, the core shaft is connected to the pipe wall of the connecting pipe in a sleeving mode, the core shaft is conical, the maximum diameter of the core shaft is matched with the internal diameter of the shell, and a copper ring is fixedly installed on the side wall of the end, located in the shell, of the end cover; high-pressure self-locking is achieved through double-conical-surface matching of the copper alloy sealing sleeve, and dependence on external pre-tightening equipment is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy accumulator, concretely is a novel energy accumulator structure. BACKGROUND

[0002] The super high pressure accumulator is a device for storing and releasing high pressure fluid, and is widely used in hydraulic systems, industrial equipment, aerospace, oil and gas fields. Its core function is to store hydraulic energy and release energy when the system needs it to stabilize system pressure, absorb impact, provide emergency power, etc. In the field of engineering machinery, aerospace, etc., the hydraulic system needs efficient energy storage and release device to cope with peak demand and pressure fluctuation. For example, the stamping machine, injection molding machine and other equipment need instantaneous high pressure support, and the super high pressure accumulator can provide stable energy output.

[0003] The traditional accumulator in the super high pressure (such as 400MPa or more) environment, the traditional sealing structure is easy to cause leakage or failure due to material strength deficiency or sealing design defect. For example, the copper alloy sealing sleeve may be worn under high frequency pressure fluctuation, and the rubber sealing material (such as bladder type) is easy to age and break, resulting in oil and gas mixing or energy loss. SUMMARY

[0004] In view of the defects of the prior art, the utility model provides a novel accumulator structure, which solves the problem that the traditional sealing structure of the accumulator in the super high pressure (such as 400MPa or more) environment is easy to cause leakage or failure due to material strength deficiency or sealing design defect. For example, the copper alloy sealing sleeve may be worn under high frequency pressure fluctuation, and the rubber sealing material (such as bladder type) is easy to age and break, resulting in oil and gas mixing or energy loss.

[0005] To achieve the above purpose, the utility model discloses the following technical scheme: a novel accumulator structure, comprising a shell and a core shaft, the both ends of the shell are internally and sealingly connected with end covers, the internal part of the end cover is fixedly installed with a connecting pipe, one end of the connecting pipe enters the internal part of the shell through the internal part of the end cover, the core shaft is sleeved on the pipe wall of the connecting pipe, the core shaft is conical, and the maximum diameter of the core shaft matches the internal diameter of the shell, and the end cover is fixedly installed with a copper ring on the side wall of one end in the shell.

[0006] Preferably, the external part of the end cover is provided with a hexagonal nut, the hexagonal nut is threadedly sleeved on the external part of the connecting pipe, and tightly extrudes the side wall of the end cover, the external part of the connecting pipe is threadedly sleeved with a large pressure cap, and the large pressure cap is tightly attached to one side of the hexagonal nut, so that the installation of the end cover can be stable, and the sealing property of the whole device is strengthened.

[0007] Preferably, one end of the connecting pipe is sleeved with an adapter, the two ends of the adapter are fixedly connected with a first compression ring and a second compression ring respectively, and the outside of the adapter is provided with a small compression cap, the small compression cap is sleeved on the outside of the connecting pipe, and is tightly attached to the side wall of the second compression ring, so that the inside of the connecting pipe can be kept sealed after the adapter is replaced.

[0008] Preferably, the inside of the mandrel is provided with a pressure relief hole, and the inside of the pressure relief hole is communicated with the inside of the connecting pipe, so that the inside of the shell can be relieved when the gas in the inside of the shell is overloaded, preventing damage to the inside of the shell.

[0009] Preferably, the shell is made of high-strength alloy steel, titanium alloy or composite material, and the shell wall thickness is significantly increased to resist super-high pressure internal stress.

[0010] The utility model provides a novel accumulator structure. Has the following beneficial effects:

[0011] 1, this kind of novel accumulator structure, when using novel accumulator structure, optimization seal design, realize high pressure self -locking through the double taper surface cooperation of copper alloy seal cover, reduce the dependence of external pre -tightening equipment.

[0012] 2, this kind of novel accumulator structure, when using novel accumulator structure, use high temperature resistant, corrosion resistant elastomer material (such as fluorine rubber), prolong life. DRAWINGS

[0013] Fig. 1 It is the whole structure schematic view of the utility model;

[0014] Fig. 2 It is the side view of the utility model;

[0015] Fig. 3 It is the exploded structure schematic view of the utility model.

[0016] In the drawing, 1 is a shell, 2 is a copper ring, 3 is a mandrel, 4 is an end cover, 5 is a hexagon nut, 6 is a large compression cap, 7 is an adapter, 8 is a first compression ring, 9 is a second compression ring, 10 is a small compression cap, 11 is a connecting pipe, and 12 is a pressure relief hole. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Please refer to Figs. 1-3 The utility model discloses an energy accumulator structure, which comprises a shell 1 and a core shaft 3, both ends of the shell 1 are internally and sealingly connected with end covers 4, the end covers 4 are internally and fixedly provided with connecting pipes 11, one end of the connecting pipes 11 enters the inside of the shell 1 through the inside of the end covers 4, the core shaft 3 is sleeved on the wall of the connecting pipes 11, the core shaft 3 is conical, the maximum diameter of the core shaft 3 matches the inside diameter of the shell 1, a copper ring 2 is fixedly installed on the side wall of one end of the shell 1, a hexagon nut 5 is arranged outside the end cover 4, the hexagon nut 5 is threadedly sleeved outside the connecting pipe 11 and tightly extruded against the side wall of the end cover 4, a large compression cap 6 is threadedly sleeved outside the connecting pipe 11 and tightly attached to one side of the hexagon nut 5, an adapter 7 is sealingly sleeved on one end of the connecting pipe 11, a first compression ring 8 and a second compression ring 9 are fixedly connected to both ends of the adapter 7, a small compression cap 10 is arranged outside the adapter 7 and threadedly sleeved outside the connecting pipe 11 and tightly attached to the side wall of the second compression ring 9, a pressure relief hole 12 is arranged inside the core shaft 3 and communicates with the inside of the connecting pipe 11, the shell 1 is made of high-strength alloy steel, titanium alloy or composite material, when gas is injected into the inside of the shell 1, the conical core shaft 3 and the sealed copper ring 2 are arranged at both ends of the inside of the shell 1, so that the core shaft 3 at the other end is pressed when the gas is input, the inside of the shell 1 is high-pressure self-locked, and the sealing property of the inside is improved.

[0019] It should be noted that, in the embodiment, when the new energy accumulator structure is used, as shown in Figs. 1-3 The main container shell 1 that bears superhigh pressure has very high mechanical strength and fatigue resistance, is usually made of high-strength alloy steel, titanium alloy or composite material, the wall thickness of the shell 1 is significantly increased to resist superhigh pressure internal stress, precise machining (such as honing and polishing) is used to reduce friction and wear of the sealing element, and the structure is integrally formed, when gas is injected into the inside of the shell 1, the conical core shaft 3 and the sealed copper ring 2 are arranged at both ends of the inside of the shell 1, so that the core shaft 3 at the other end is pressed when the gas is input, the inside of the shell 1 is high-pressure self-locked, and the sealing property of the inside is improved.

[0020] The basic principle and main features of the present application and the advantages of the present application are shown and described above. For those skilled in the art, it is obvious that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or basic characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be considered as limiting the claims involved.

[0021] In addition, it should be understood that, although the present application is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A novel energy storage structure, characterized in that: The device includes a housing (1) and a mandrel (3). Both ends of the housing (1) are sealed with end caps (4). A connecting tube (11) is fixedly installed inside the end cap (4). One end of the connecting tube (11) passes through the inside of the end cap (4) and enters the inside of the housing (1). The mandrel (3) is sleeved on the wall of the connecting tube (11). The mandrel (3) is conical, and the maximum diameter of the mandrel (3) matches the internal diameter of the housing (1). A copper ring (2) is fixedly installed on the side wall of the end cap (4) inside the housing (1).

2. The novel energy storage structure according to claim 1, characterized in that: The end cap (4) is provided with a hexagonal nut (5) on the outside. The hexagonal nut (5) is threaded onto the outside of the connecting pipe (11) and tightly pressed against the side wall of the end cap (4). The connecting pipe (11) is threaded onto a large pressure cap (6) and tightly fitted to one side of the hexagonal nut (5).

3. The novel energy storage structure according to claim 1, characterized in that: One end of the connecting pipe (11) is sealed with an adapter (7). The two ends of the adapter (7) are respectively fixedly connected with a first clamping ring (8) and a second clamping ring (9). A small pressure cap (10) is provided on the outside of the adapter (7). The small pressure cap (10) is threaded onto the outside of the connecting pipe (11) and fits tightly against the side wall of the second clamping ring (9).

4. The novel energy storage structure according to claim 1, characterized in that: The mandrel (3) has a pressure relief hole (12) inside, and the inside of the pressure relief hole (12) is connected to the inside of the connecting pipe (11).

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