FR2485653A1 - Guides for oleopneumatic snubber - can be curved plates, radial rods or tubes orientated parallel to vessel axis - Google Patents
Guides for oleopneumatic snubber - can be curved plates, radial rods or tubes orientated parallel to vessel axis Download PDFInfo
- Publication number
- FR2485653A1 FR2485653A1 FR8014365A FR8014365A FR2485653A1 FR 2485653 A1 FR2485653 A1 FR 2485653A1 FR 8014365 A FR8014365 A FR 8014365A FR 8014365 A FR8014365 A FR 8014365A FR 2485653 A1 FR2485653 A1 FR 2485653A1
- Authority
- FR
- France
- Prior art keywords
- strainer
- vessel
- guide
- guide means
- snubber
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- 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
- F15B1/18—Anti-extrusion means
-
- 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
- F15B2201/3152—Accumulator separating means having flexible separating means the flexible separating means being bladders
-
- 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
- F15B2201/3158—Guides for the flexible separating means, e.g. for a collapsed bladder
-
- 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
- F15B2201/43—Anti-extrusion means
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
Description
L'invention a pour obJet une crépine permettant d'éviter les turbulences au niveau de l'entrée ou sortie des accumulateurs oléopneumatiques dits "ANTI-BELIER". The object of the invention is a strainer making it possible to avoid turbulence at the inlet or outlet of oleopneumatic accumulators called "ANTI-BELIER".
En règle générale un accumulateur antibélier de petite capacité, par exemple de i à 5 litres, comporte une crépine constituée par une seule tgle perforée galbée pour éviter l'extruslon de la vessie gonflée par un gaz neutre, l'extru- sion pouvant se produire quand l'accu se trouve au repos, c'est-à-dire vessie gonflée et avec volume nul de fluide à restituer. As a general rule, a small capacity anti-ram accumulator, for example from i to 5 liters, comprises a strainer constituted by a single curved perforated nail to avoid extruslon of the bladder inflated by a neutral gas, extrusion being able to occur when the battery is at rest, that is to say bladder swollen and with zero volume of fluid to be returned.
Pour les accus de capacité plus importante c'est-à-dire au-dessus de 5 litres par exemple, l'usage international est d'associer 2 tôles perforées galbées, en opposant les galbes, la tôle perforée en contact avec la vessie étant de perfora- tion plus petite par rapport à la deuxième, cette deuxième tôle ayant un rôle de renfort. For rechargeable batteries with a larger capacity, i.e. above 5 liters for example, international use is to combine 2 curved perforated sheets, opposing the curves, the perforated sheet in contact with the bladder being smaller perforation compared to the second, this second sheet having a reinforcing role.
Il est connu que cette deuxième tôle perforée, malgré ses trous de perforation plus importants que ceux de la première, constitue un obstacle sérieux à l'écoulement dans le cas d'accu anti-béiier. On peut dire qu'elle va à l'encontre du but recherché car elle constitue un frein au transfert de l'énergie vers l'accu, au moment précis où le coup de bélier, dû par exemple à la fermeture d'une vanne, se produit. It is known that this second perforated sheet, despite its larger perforation holes than those of the first, constitutes a serious obstacle to the flow in the case of anti-bee battery. We can say that it goes against the desired goal because it constitutes a brake on the transfer of energy to the battery, at the precise moment when the water hammer, due for example to the closing of a valve, occurs.
Par ailleurs l'obstacle, constitué par l'une ou l'ensemble des deux tôles perforées, contribue à perturber l'écoulement laminaire et à amener l'écoulement turbulent du fluide à stocker, au moment du coup de bélier. Ceci va également à l'encontre du but recherché dans le cas de- l'accu anti-bélier. Furthermore, the obstacle, consisting of one or all of the two perforated sheets, contributes to disturbing the laminar flow and causing the turbulent flow of the fluid to be stored, at the time of the pressure surge. This also goes against the aim sought in the case of the anti-ram battery.
Un but de l'invention est donc de réaliser une crépine évitant bien entendu l'extrusion de la vessie mais réalisée par une seule t81e perforée associée avec un système de "GUIDE-FILETS" amenant la diminution voire la suppression de la turbulence du fluide au moment du coup de bélier. Bien entendu le système guide-filet est favorable également à l'é- coulement au moment de la restitution du fluide stocké. An object of the invention is therefore to produce a strainer of course avoiding the extrusion of the bladder but produced by a single perforated t81e associated with a "GUIDE-NETS" system bringing about the reduction or even the elimination of the turbulence of the fluid at the moment of the water hammer. Of course, the thread guide system is also favorable for flow when the stored fluid is returned.
Selon l'invention, on associe à la tôle perforée unique un renfort qui n'estplus un élément perturbateur mais qui, au contraire, améliore les qualités d'écoulement. According to the invention, a reinforcement is associated with the single perforated sheet which is no longer a disturbing element but which, on the contrary, improves the flow qualities.
D'autres caractéristiques et avantages de 1 r invention ressortiront de la description qui va suivre, en référence au dessin annexé qui représente: - Figure 1 : Une vue schématique de l'ensemble de l'accumu- lateur avec la crépine guide-filets. Other characteristics and advantages of the invention will emerge from the description which follows, with reference to the appended drawing which represents: FIG. 1: A schematic view of the whole of the accumulator with the thread guide strainer.
- Figure 2 : Une coupe schématique de la crépine guide-filets.- Figure 2: A schematic section of the thread guide strainer.
- Figures 3-4-5: Une vue en plan schématique de la crépine guide-filets.- Figures 3-4-5: A schematic plan view of the thread guide strainer.
Sur la figure 1, la crépine guide-filets 1 est montée à l'intérieur de l'accumulateur A avec limitation en hauteur par le redan R et vers le bas par le jonc J. In FIG. 1, the thread guide strainer 1 is mounted inside the accumulator A with height limitation by the step R and downwards by the rod J.
Sur la figure 2 représentant la crépine la virole 1 re çoit par soudure, soit la tôle perforée 2 galbée vers le bas, soit la tôle perforée 5 galbée vers le haut. Les renforts 4 de la tôle perforée 2 ou 3 prennent appui sur la virole 1
Sur la figure 3, le renfort guide-filets 4 est constitué de 4 croisillons assemblés par soudure.In FIG. 2 representing the strainer, the ferrule 1 receives by welding, either the perforated sheet 2 curved downwards, or the perforated sheet 5 curved upwards. The reinforcements 4 of the perforated sheet 2 or 3 bear on the shell 1
In FIG. 3, the thread guide reinforcement 4 consists of 4 cross-pieces assembled by welding.
Sur la figure 4, le renfort guide-filets 5 est constitué de plusieurs éléments formés par emboutissage avant soudure. In Figure 4, the thread guide reinforcement 5 consists of several elements formed by stamping before welding.
Sur la figure 5, le renfort guide-filets 6 est constitué de plusieurs tubes assemblés entre eux et à la virole 1 par soudure. In Figure 5, the thread guide reinforcement 6 consists of several tubes assembled together and to the shell 1 by welding.
L'invention ne se limite pas aux exemples de réalisation précédemment décrits mais en englobe également toutes les variantes constructives. The invention is not limited to the embodiments previously described but also encompasses all the constructive variants thereof.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8014365A FR2485653A1 (en) | 1980-06-27 | 1980-06-27 | Guides for oleopneumatic snubber - can be curved plates, radial rods or tubes orientated parallel to vessel axis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8014365A FR2485653A1 (en) | 1980-06-27 | 1980-06-27 | Guides for oleopneumatic snubber - can be curved plates, radial rods or tubes orientated parallel to vessel axis |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2485653A1 true FR2485653A1 (en) | 1981-12-31 |
FR2485653B1 FR2485653B1 (en) | 1983-10-28 |
Family
ID=9243606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8014365A Granted FR2485653A1 (en) | 1980-06-27 | 1980-06-27 | Guides for oleopneumatic snubber - can be curved plates, radial rods or tubes orientated parallel to vessel axis |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2485653A1 (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE877517C (en) * | 1945-08-21 | 1953-05-26 | Jean Mercier | Pressure accumulator |
FR1370693A (en) * | 1963-07-04 | 1964-08-28 | Improvements made to pressure tanks | |
FR2110777A5 (en) * | 1970-10-30 | 1972-06-02 | Mercier J |
-
1980
- 1980-06-27 FR FR8014365A patent/FR2485653A1/en active Granted
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE877517C (en) * | 1945-08-21 | 1953-05-26 | Jean Mercier | Pressure accumulator |
FR1370693A (en) * | 1963-07-04 | 1964-08-28 | Improvements made to pressure tanks | |
FR2110777A5 (en) * | 1970-10-30 | 1972-06-02 | Mercier J |
Also Published As
Publication number | Publication date |
---|---|
FR2485653B1 (en) | 1983-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |