WO1988008096A1 - Diaphragme - Google Patents

Diaphragme Download PDF

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Publication number
WO1988008096A1
WO1988008096A1 PCT/JP1987/000231 JP8700231W WO8808096A1 WO 1988008096 A1 WO1988008096 A1 WO 1988008096A1 JP 8700231 W JP8700231 W JP 8700231W WO 8808096 A1 WO8808096 A1 WO 8808096A1
Authority
WO
WIPO (PCT)
Prior art keywords
diaphragm
sheet
rubber
elastic material
gas
Prior art date
Application number
PCT/JP1987/000231
Other languages
English (en)
Japanese (ja)
Inventor
Satoru Otsuki
Original Assignee
Nok Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nok Corporation filed Critical Nok Corporation
Priority to PCT/JP1987/000231 priority Critical patent/WO1988008096A1/fr
Publication of WO1988008096A1 publication Critical patent/WO1988008096A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/04—Devices damping pulsations or vibrations in fluids
    • F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
    • F16L55/05—Buffers therefor
    • F16L55/052—Pneumatic reservoirs
    • F16L55/053—Pneumatic reservoirs the gas in the reservoir being separated from the fluid in the pipe
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/02—Diaphragms
    • 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
    • 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
    • F15B2201/3151—Accumulator separating means having flexible separating means the flexible separating means being diaphragms or membranes
    • 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
    • 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
    • F15B2201/415—Gas ports
    • 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
    • F15B2201/43—Anti-extrusion means

Definitions

  • the present invention relates to a diaphragm, and more particularly, to a diaphragm in which a sheet-like member having no gas permeation resistance, such as a metal foil or a resin film, is provided to improve gas permeation resistance.
  • diaphragms that consist of only rubber-like elastic material and are displaced according to the pressure difference acting on both sides have been installed in devices such as accumulators and attached to accumulators.
  • a pressure chamber having a predetermined sealing pressure is formed on one side of the diaphragm, and a chamber communicating with the pulsating flow path is formed on the other side, and when pulsation occurs in the flow path, The diaphragm is displaced toward the pressure chamber against the sealing pressure of the pressure chamber, and the displacement absorbs the pulsation of the flow path.
  • the present invention does not have the drawbacks of the conventional diaphragm, has high gas permeability resistance, and prevents a decrease in the pressure of the pressure chamber in the pressure chamber for a long period of time even when used in an accumulator. It is intended to provide a diaphragm capable of performing such operations.
  • the comb-like elastic material forming the diaphragm is Since a sheet-like member having gas permeation resistance, such as a metal foil or a resin film, is provided, gas permeation resistance is significantly improved.
  • FIG. 1 is a diagram showing a cross section of a preferred diaphragm according to the present invention.
  • FIG. 2 is a diagram showing another embodiment of the diaphragm according to the present invention.
  • FIG. 3 is a diagram showing another example of the diaphragm according to the present invention.
  • FIG. 4 is a diagram showing a state where the one shown in FIG. 3 is attached to an accumulator, and
  • FIG. 5 is a diagram showing still another embodiment of the diaphragm according to the present invention.
  • FIG. 1 shows a gas-resistant material such as a metal foil or a resin film provided along the inner surface of a diaphragm main body 2 made of a cylindrical rubber-like elastic material whose one end is closed.5 A permeable sheet-like member 3 is provided. As a result, the diaphragm 1 is formed with force, so that the diaphragm 1 has a double structure of a diaphragm main body 2 made of a rubber-like elastic material and a sheet-like member 3. —
  • this diaphragm 1 is made up of only rubber-like elastic forest and does not have Z 0, and a sheet-like member 3 having gas resistance is provided on the inner surface of the rubber-like elastic material. As a result, the gas permeation resistance of the diaphragm 1 itself is significantly improved.
  • FIG. 2 shows another embodiment of the present invention, in which gas-permeable material made of metal foil or resin film is formed along the outer surface of a diaphragm main body 5 made of a cylindrical rubber-like elastic material having one end closed. Is provided, and the diaphragm 4 is formed by this. Therefore, the diaphragm 4 has a double structure of a diaphragm main body 5 made of a rubber-like elastic material and a sheet-like member &. It is composed of
  • the diaphragm 4 has a gas-permeable sheet-like member 3 provided on the inner surface of the diaphragm body 30 shown in FIG. 1, whereas the outer surface of the diaphragm body 5 Gas permeation resistance There is provided a sheet-like member 6 having a property.
  • FIG. 3 shows still another embodiment of the present invention, in which a sheet-like member 9 such as a metal foil or a resin film having almost no gas permeability is bent in a bellows-like shape so as to be expandable and contractible.
  • the semi-spherical sheet member 9 is formed into a hemispherical shape by integrally vulcanizing and molding the semi-spherical sheet member 9 so as to be embedded with the diaphragm main body 8 being a rubber-like elastic material. It is.
  • the diaphragm main body 8 which is a rubber-like elastic material is extended, and the diaphragm 7 is integrally formed with the diaphragm 7.
  • the sheet-like member 9 also extends integrally, but at this time, the sheet-like member 9 does not itself expand, but is formed in a bellows shape, so that the rubber-like elastic material is formed by the extensibility of the bellows.
  • the sheet-like member 9 such as a metal foil or a resin film itself does not expand when the diaphragm body 8 is expanded. It can be extended smoothly without any load.
  • the overall elongation of the diaphragm 7 can be almost the same as that of a diaphragm formed of only a rubber-like elastic material, and furthermore, a metal foil or a resin film or the like is provided inside. Since the sheet-shaped member is buried, the gas permeability resistance is high.
  • FIG. 4 shows a state where the one shown in FIG. 3 is used for an accumulator.
  • a diaphragm 7 is provided in the space formed between the upper and lower casings 10 and 11 so as to cover the annular lower end 12 of the upper casing 10, and the diaphragm 7 and the upper casing 10 are provided.
  • the lower casing 11 is provided with a plurality of holes 14, and the inner surface of the lower casing 11 is in contact with the diaphragm 7.
  • the upper casing # 0 is provided with a gas inflow hole 5 communicating with the gas chamber.
  • the gas inflow hole 15 allows the inside of the gas chamber to have a predetermined sealing pressure.
  • the plurality of holes 14 provided in the lower casing 11 communicate with the flow path. You.
  • the pulsation in the flow path can be absorbed by the displacement of the diaphragm 7 toward the gas chamber.
  • FIG. 5 shows still another embodiment of the present invention.
  • a cylinder having one end closed is shown. However, it has a cylindrical shape having both ends opened. Used for accumulators.
  • the diaphragm 15 has a sheet-like member 17 such as a metal foil or a resin film formed in a bellows shape, and a ⁇ side of the sheet-like member 17- such as a metal foil or a resin film. It is covered with a diaphragm body 16 which is a rubbery elastic forest.
  • This embodiment also has the same function as that of the embodiment shown in FIG.
  • the diaphragm according to the present invention is useful for use in accumulators and the like, and in particular, in a device such as an accumulator, it is possible to maintain the sealing pressure for a long period of time. Suitable for what you need.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
  • Diaphragms And Bellows (AREA)

Abstract

Diaphragme (1, 4, 7, 15) composé d'un matériau élastique caoutchouteux (2, 5, 8, 16) et d'éléments en feuilles (3, 6, 9, 17) composés de feuilles métalliques ou d'éléments imperméables aux gaz, telle une membrane en résine, etc. Ce diaphragme est utilisé dans un accumulateur ou un appareil analogue, de sorte que le diaphragme forme d'une côté une partie d'une chambre de pression (13) chargée au prßlable avec un gaz et de l'autre côté une partie d'une chambre (14) en communication avec des passages d'écoulement, de manière à empêcher toute fuite du gaz sous pression de la chambre de pression (13) à la chambre (14) en communication avec les passages d'écoulement pendant longtemps.
PCT/JP1987/000231 1987-04-13 1987-04-13 Diaphragme WO1988008096A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/JP1987/000231 WO1988008096A1 (fr) 1987-04-13 1987-04-13 Diaphragme

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1987/000231 WO1988008096A1 (fr) 1987-04-13 1987-04-13 Diaphragme

Publications (1)

Publication Number Publication Date
WO1988008096A1 true WO1988008096A1 (fr) 1988-10-20

Family

ID=13902658

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1987/000231 WO1988008096A1 (fr) 1987-04-13 1987-04-13 Diaphragme

Country Status (1)

Country Link
WO (1) WO1988008096A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318198C1 (de) * 1993-06-01 1994-11-03 Darko Dipl Ing Prazic Membranlehne
EP1061311A2 (fr) 1999-06-15 2000-12-20 Winkelmann & Pannhoff GmbH & Co. Stahl-Behälter-Technik Dispositif d'équilibrage de pression pour accumulateur d'eau chaude
CN1092294C (zh) * 1997-09-29 2002-10-09 曹建钢 膜盒式蓄能器

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4328541Y1 (fr) * 1965-12-18 1968-11-25
JPS4635735Y1 (fr) * 1968-10-21 1971-12-08
JPS4943054A (fr) * 1972-08-29 1974-04-23
JPS4951875U (fr) * 1972-08-18 1974-05-08
JPS5761269U (fr) * 1980-09-30 1982-04-12
JPS5829327Y2 (ja) * 1977-09-13 1983-06-27 月星化成株式会社 ダイヤフラム
JPS603354U (ja) * 1983-06-21 1985-01-11 株式会社　荒井製作所 ダイヤフラム

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4328541Y1 (fr) * 1965-12-18 1968-11-25
JPS4635735Y1 (fr) * 1968-10-21 1971-12-08
JPS4951875U (fr) * 1972-08-18 1974-05-08
JPS4943054A (fr) * 1972-08-29 1974-04-23
JPS5829327Y2 (ja) * 1977-09-13 1983-06-27 月星化成株式会社 ダイヤフラム
JPS5761269U (fr) * 1980-09-30 1982-04-12
JPS603354U (ja) * 1983-06-21 1985-01-11 株式会社　荒井製作所 ダイヤフラム

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4318198C1 (de) * 1993-06-01 1994-11-03 Darko Dipl Ing Prazic Membranlehne
CN1092294C (zh) * 1997-09-29 2002-10-09 曹建钢 膜盒式蓄能器
EP1061311A2 (fr) 1999-06-15 2000-12-20 Winkelmann & Pannhoff GmbH & Co. Stahl-Behälter-Technik Dispositif d'équilibrage de pression pour accumulateur d'eau chaude
DE19927078C1 (de) * 1999-06-15 2001-02-15 Winkelmann & Pannhoff Gmbh & C Druckausgleichseinrichtung für einen Warmwasserspeicher oder dgl.

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