CN111911467A - High-pressure metal bellows type energy accumulator - Google Patents
High-pressure metal bellows type energy accumulator Download PDFInfo
- Publication number
- CN111911467A CN111911467A CN202010884745.4A CN202010884745A CN111911467A CN 111911467 A CN111911467 A CN 111911467A CN 202010884745 A CN202010884745 A CN 202010884745A CN 111911467 A CN111911467 A CN 111911467A
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- China
- Prior art keywords
- sealing
- cover
- end cover
- shell
- sealing cover
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/10—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means
- F15B1/103—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor with flexible separating means the separating means being bellows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/04—Accumulators
- F15B1/08—Accumulators using a gas cushion; Gas charging devices; Indicators or floats therefor
- F15B1/22—Liquid port constructions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/20—Accumulator cushioning means
- F15B2201/205—Accumulator cushioning means using gas
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3153—Accumulator separating means having flexible separating means the flexible separating means being bellows
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/30—Accumulator separating means
- F15B2201/315—Accumulator separating means having flexible separating means
- F15B2201/3157—Sealings for the flexible separating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/405—Housings
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2201/00—Accumulators
- F15B2201/40—Constructional details of accumulators not otherwise provided for
- F15B2201/41—Liquid ports
- F15B2201/411—Liquid ports having valve means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Diaphragms And Bellows (AREA)
Abstract
The invention discloses a high-pressure metal diaphragm type energy accumulator, in particular to the field of energy accumulators, which comprises a shell, wherein a first end cover and a second end cover are respectively and fixedly connected with two ends of the shell, the first end cover, the second end cover and the shell are integrally arranged, a first sealing cover is arranged in the first end cover and fixedly connected with the shell, an air cavity is formed between the first sealing cover and the second end cover, a second sealing cover is arranged in the second end cover and movably connected with the shell, a liquid cavity is formed between the second sealing cover and the second end cover, and a diaphragm group is connected between the first sealing cover and the second sealing cover; the end of the diaphragm group connected with the second sealing cover is in a closed state, and the end of the diaphragm group connected with the first sealing cover is in an open state. The invention can achieve high-pressure use on the premise of not increasing the number of layers of the membrane and the weight, can reduce the self weight by replacing materials, and is more suitable for the fields of aviation and aerospace.
Description
Technical Field
The invention relates to the field of energy accumulators, in particular to a high-pressure metal diaphragm box type energy accumulator.
Background
At present, a bellows type energy accumulator device adopted in the market is installed in a hydraulic system, can absorb pulsation, impact and the like generated by hydraulic pressure of a pipeline, and can also supplement oil for the system to provide power and the like. However, these accumulators have the obvious disadvantage that the pressure bearing is generally not more than 3MPa because the thickness of the single-layer membrane is within 0.2 mm. If the compressive strength is to be increased, the number of layers must be increased, which leads to an increase in weight. Along with the rapid development of the fields of aviation, ships, chemical industry and the like in China, the use working condition of the energy accumulator is more and more complex, the requirement on the energy accumulator is higher and higher, especially the application in a high-pressure state, the existing energy accumulator device can not meet the requirement, and the development of the energy accumulator device with a novel structure is urgently needed.
Disclosure of Invention
In order to achieve the purpose, the invention provides the following technical scheme: a high-pressure metal bellows type energy accumulator comprises a shell, wherein a first end cover and a second end cover are fixedly connected to two ends of the shell respectively, the first end cover, the second end cover and the shell are integrally arranged, a first sealing cover is arranged in the first end cover and fixedly connected with the shell, an air cavity is formed between the first sealing cover and the second end cover, a second sealing cover is arranged in the second end cover and movably connected with the shell, a liquid cavity is formed between the second sealing cover and the second end cover, and a diaphragm group is connected between the first sealing cover and the second sealing cover;
the diaphragm group is in a closed state at one end connected with the second sealing cover, is in an open state at one end connected with the first sealing cover, and is provided with a notch matched with the diaphragm group in the middle of the first sealing cover, the air cavity is communicated with the inside of the diaphragm group through the notch, a gap is reserved between the diaphragm group and the inner wall of the shell, an air guide groove is formed in the joint of the second sealing cover and the shell, and the gap is communicated with the liquid cavity.
In a preferred embodiment, the diaphragm group is a length-adjustable bellows composed of a plurality of metal diaphragms, and the metal diaphragms are detachably mounted.
In a preferred embodiment, the first end cap is externally fitted with a one-way inflation valve in communication with the air chamber.
In a preferred embodiment, the second end cap is externally fitted with an inlet pipe communicating with the liquid chamber.
In a preferred embodiment, the second cover is provided with a sealing rod extending into the liquid inlet pipe, a sealing plate is mounted on the outside of the sealing rod, and a sealing protrusion is arranged on the sealing plate.
In a preferred embodiment, a sealing rubber ring matched with the sealing bulge is arranged on the inner wall of the second end cover.
The invention has the technical effects and advantages that:
through adopting the individual layer metal bellows to reach the gas-liquid and keep apart, through the continuous circulation filling of the atmospheric pressure of both sides and oil pressure, can reach the high pressure and use, compare with prior art, this metal bellows type energy storage ware accessible does not increase the diaphragm number of piles, can reach the high pressure under the prerequisite of not increasing weight and use to through the change material, can reduce self weight, more be fit for using in aviation, aerospace field.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a second cover part of the present invention.
Fig. 3 is a schematic structural view of a first cover part of the present invention.
The reference signs are: the sealing structure comprises a shell 1, a first end cover 2, a second end cover 3, a first sealing cover 4, a gas chamber 5, a second sealing cover 6, a liquid chamber 7, a diaphragm group 8, a groove 9, a gap 10, a gas guide groove 11, a one-way inflation valve 12, a liquid inlet pipe 13, a sealing rod 14, a sealing plate 15, a sealing bulge 16 and a sealing rubber ring 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
1-3, the two ends of the housing 1 are respectively and fixedly connected with a first end cover 2 and a second end cover 3, and the first end cover 2, the second end cover 3 and the housing 1 are integrally arranged, a first seal cover 4 is arranged inside the first end cover 2, the first seal cover 4 is fixedly connected with the housing 1, an air chamber 5 is formed between the first seal cover 4 and the second end cover 3, a second seal cover 6 is arranged inside the second end cover 3, the second seal cover 6 is movably connected with the housing 1, a liquid chamber 7 is formed between the second seal cover 6 and the second end cover 3, and a membrane group 8 is connected between the first seal cover 4 and the second seal cover 6;
the end, connected with the second sealing cover 6, of the diaphragm group 8 is in a closed state, the end, connected with the first sealing cover 4, of the diaphragm group is in an open state, a slot 9 matched with the diaphragm group 8 is formed in the middle of the first sealing cover 4, the air chamber 5 is communicated with the interior of the diaphragm group 8 through the slot 9, a gap 10 is reserved between the diaphragm group 8 and the inner wall of the shell 1, an air guide slot 11 is formed in the joint of the second sealing cover 6 and the shell 1, and the gap 10 is communicated with the liquid chamber 7;
the diaphragm group 8 is a corrugated pipe which is composed of a plurality of metal diaphragm groups 8 and has a telescopic length, and the metal diaphragms are detachably mounted.
The first end cover 2 is externally provided with a one-way inflation valve 12 communicated with the air chamber 5 for inflating air;
a liquid inlet pipe 13 communicated with the liquid chamber 7 is arranged outside the second end cover 3 and used for allowing external high-pressure oil liquid to enter the liquid chamber 7;
the second sealing cover 6 is provided with a sealing rod 14 extending into the liquid inlet pipe 13, a sealing plate 15 is mounted outside the sealing rod 14, a sealing protrusion 16 is arranged on the sealing plate 15, a sealing rubber ring 17 matched with the sealing protrusion 16 is arranged on the inner wall of the second end cover 3, and when the pressure in the air chamber 5 is increased, the second sealing cover 6 is pushed, so that the sealing protrusion 16 on the sealing plate 15 is attached to the sealing rubber ring 17 to complete sealing;
when the gas compressor works, firstly, the gas presses the required high-pressure nitrogen into the shell 1 to 1MPa through the one-way inflation valve 12, at the moment, the air pressure is filled in a closed space formed by the first end cover 2, the first sealing cover 4, the shell 1, the air chamber 5 and the diaphragm set 8, the second sealing cover 6 is pressed at the second end cover 3 at the other side of the shell 1 by the air pressure, then the oil pump starts to work, the oil pressure in a hydraulic pipeline is increased, the high-pressure oil enters through the liquid inlet pipe 13, the sealing plate 15 is pushed open, the sealing rod 14 is driven to move, the high-pressure oil can enter into the liquid chamber 7, the second sealing cover 6 is pushed open and enters into the gap 10 in the shell 1 through the gas guide groove 11 on the second sealing cover 6, the second sealing cover 6 is pushed to compress the nitrogen in the diaphragm set 8 until the oil pressure reaches 2MPa, the gas and liquid at the two sides are in a balanced state, and then the circulation is carried out, the pressure or the oil pressure is continuously increased through the two sides of the energy accumulator, when the pressure reaches a set pressure value, the oil pressure is kept consistent with the pressure, and then the metal diaphragm type energy accumulator can respond quickly according to the pressure change of the system to achieve the effect of a pressurization hydraulic system.
The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;
secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the invention, only the structures related to the disclosed embodiments are referred to, other structures can refer to common designs, and the same embodiment and different embodiments of the invention can be combined with each other without conflict;
and finally: the above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that are within the spirit and principle of the present invention are intended to be included in the scope of the present invention.
Claims (6)
1. A high-pressure metal bellows type energy accumulator is characterized by comprising a shell, wherein a first end cover and a second end cover are fixedly connected to two ends of the shell respectively, the first end cover, the second end cover and the shell are integrally arranged, a first sealing cover is arranged in the first end cover and fixedly connected with the shell, an air cavity is formed between the first sealing cover and the second end cover, a second sealing cover is arranged in the second end cover and movably connected with the shell, a liquid cavity is formed between the second sealing cover and the second end cover, and a diaphragm group is connected between the first sealing cover and the second sealing cover;
the diaphragm group is in a closed state at one end connected with the second sealing cover, is in an open state at one end connected with the first sealing cover, and is provided with a notch matched with the diaphragm group in the middle of the first sealing cover, the air cavity is communicated with the inside of the diaphragm group through the notch, a gap is reserved between the diaphragm group and the inner wall of the shell, an air guide groove is formed in the joint of the second sealing cover and the shell, and the gap is communicated with the liquid cavity.
2. The high pressure metal bellows accumulator of claim 1, wherein: the diaphragm group is a corrugated pipe which is composed of a plurality of metal diaphragms and has a telescopic length, and the metal diaphragms are detachably mounted.
3. The high pressure metal bellows accumulator of claim 1, wherein: and a one-way inflation valve communicated with the air chamber is arranged outside the first end cover.
4. The high pressure metal bellows accumulator of claim 1, wherein: and a liquid inlet pipe communicated with the liquid chamber is arranged outside the second end cover.
5. The high pressure metal bellows accumulator of claim 1, wherein: the second sealing cover is provided with a sealing rod extending into the liquid inlet pipe, a sealing plate is mounted on the outer portion of the sealing rod, and a sealing bulge is arranged on the sealing plate.
6. The accumulator of claim 5, wherein: and a sealing rubber ring matched with the sealing bulge is arranged on the inner wall of the second end cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010884745.4A CN111911467A (en) | 2020-08-28 | 2020-08-28 | High-pressure metal bellows type energy accumulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010884745.4A CN111911467A (en) | 2020-08-28 | 2020-08-28 | High-pressure metal bellows type energy accumulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111911467A true CN111911467A (en) | 2020-11-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010884745.4A Pending CN111911467A (en) | 2020-08-28 | 2020-08-28 | High-pressure metal bellows type energy accumulator |
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| Country | Link |
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| CN (1) | CN111911467A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261374A (en) * | 2021-12-29 | 2022-04-01 | 安徽威迈光机电科技有限公司 | Tire pressure compensation inflation device for metal corrugated pipe |
-
2020
- 2020-08-28 CN CN202010884745.4A patent/CN111911467A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114261374A (en) * | 2021-12-29 | 2022-04-01 | 安徽威迈光机电科技有限公司 | Tire pressure compensation inflation device for metal corrugated pipe |
| CN114261374B (en) * | 2021-12-29 | 2023-12-22 | 安徽威迈光机电科技有限公司 | Metal bellows tire pressure compensation aerating device |
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