FR2527700A1 - MEMBRANE METERING PUMP WITH TWO RETAINING VALVES - Google Patents
MEMBRANE METERING PUMP WITH TWO RETAINING VALVES Download PDFInfo
- Publication number
- FR2527700A1 FR2527700A1 FR8308479A FR8308479A FR2527700A1 FR 2527700 A1 FR2527700 A1 FR 2527700A1 FR 8308479 A FR8308479 A FR 8308479A FR 8308479 A FR8308479 A FR 8308479A FR 2527700 A1 FR2527700 A1 FR 2527700A1
- Authority
- FR
- France
- Prior art keywords
- pump
- valves
- pump according
- piston
- membrane
- 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.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B13/00—Pumps specially modified to deliver fixed or variable measured quantities
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B43/00—Machines, pumps, or pumping installations having flexible working members
- F04B43/02—Machines, pumps, or pumping installations having flexible working members having plate-like flexible members, e.g. diaphragms
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
Description
POMPE DOSEUSE A MEMBRANE, POURVUE DE DEUX SOUPAPES DE RETENUE.MEMBRANE DOSING PUMP WITH TWO RETAINING VALVES.
La présente invention concerne une pompe doseuse à membrane, pourvue de deux soupapes de retenue.The present invention relates to a diaphragm metering pump, provided with two check valves.
Les pompes doseuses, employées pour doser des liquides sont pourvues d'une soupape d'aspiration et d'une soupape de refoulement, qui sont des soupapes de retenue, contraintes par des ressorts appropriés.The dosing pumps, used for dosing liquids, are provided with a suction valve and a discharge valve, which are check valves, constrained by suitable springs.
I1 est connu que ces pompes sont également employées pour doser des liquides corrosifs, comme par exemple des détersifs liquides, solvants, des substances anti-algues (pour piscines), de l'hypochlorite de sodium (pour désinfecter l'eau des piscines), ou des substances similaires. It is known that these pumps are also used for dosing corrosive liquids, such as liquid detergents, solvents, anti-algae substances (for swimming pools), sodium hypochlorite (for disinfecting swimming pool water), or similar substances.
Dans ces cas, le liquide peut attaquer et corroder les ressorts de rap- pel qui coopérent avec les soupapes de retenue, et détériorent la pompe. In these cases, the liquid can attack and corrode the return springs which cooperate with the check valves, and deteriorate the pump.
Même si ces soupapes de retenue sont pourvues d'un axe vertical tel, qsc les obturateurs tombent dans les sièges respectifs par simple gravite, permettant d'éliminer les ressorts de rappel, un fonctionnement convenable de la pompe n'est pas possible.Even if these check valves are provided with a vertical axis such that the shutters fall into the respective seats by simple gravity, making it possible to eliminate the return springs, proper operation of the pump is not possible.
En effet, des particules solides en suspension dans le liquide transporté peuvent se déposer sur lessiègesdes soupapes, et peuvent altérer l'étanchéité de ces dernières.Indeed, solid particles in suspension in the transported liquid can be deposited on the valve seats, and can affect the sealing of the latter.
La présente invention se propose d'éliminer les inconvénients mentionnés ci-dessus, en réalisant une pompe doseuse 9 membrane, utilisable pour les liquides corrosifs.The present invention proposes to eliminate the drawbacks mentioned above, by producing a metering pump 9 membrane, usable for corrosive liquids.
Un des buts de la présente invention consiste à réaliser une pompe doseuse è membrane, dont les soupapes disposées sur les conduits d'aspiration et de refoulement, fonctionnent de façon régulière, même én présence de liquides corrosifs et/ou contenant des particules solides en suspension. One of the aims of the present invention consists in producing a diaphragm metering pump, the valves of which, arranged on the suction and discharge pipes, operate regularly, even in the presence of corrosive liquids and / or containing solid particles in suspension. .
Ce but est atteint par une pompe doseuse à membrane selon l'invention, caractérisée en ce qu'elle comprend, soit sur la conduite d'aspiration, soit sur la conduite de refoulement, au moins deux soupapes de retenue à billes, disposées en série et dont l'obturation s'effectue grâce à la force de gravité agissant sur les billes.This object is achieved by a diaphragm metering pump according to the invention, characterized in that it comprises, either on the suction pipe or on the delivery pipe, at least two ball check valves, arranged in series and which is closed by the force of gravity acting on the balls.
D'autres caractéristiques et avantages de la pompe doseuse à membrane selon la présente invention, ressortiront de la description d'un mode d'exécution préféré de cette pompe, et du dessin amexé dans lequel la figure 1 est une vue en coupe verticale de ladite pompe, et la figure 2 est une vue de détail représentant le mécanisme variateur du débit, appliqué à ladite pompe.Other characteristics and advantages of the diaphragm metering pump according to the present invention will emerge from the description of a preferred embodiment of this pump, and from the attached drawing in which FIG. 1 is a view in vertical section of the said pump, and FIG. 2 is a detailed view showing the flow variator mechanism applied to said pump.
En référence aux figures, la pompe doseuse à membrane décrite est équi- pée de deux soupapes de retenue doubles 3 et 4 montées respectivement sur la conduite d'aspiration 1, et sur la conduite de refoulement 2.With reference to the figures, the diaphragm metering pump described is equipped with two double check valves 3 and 4 mounted respectively on the suction line 1, and on the discharge line 2.
Ces soupapes sont formées de deux corps de soupape disposés en série, leurs axes verticaux étant alignés et pourvus de sièges tronconiques et d'obturateurs à bille libre , fabriquées en une matière anti-corrosive.These valves are formed by two valve bodies arranged in series, their vertical axes being aligned and provided with frustoconical seats and free ball shutters, made of an anti-corrosion material.
L'aspiration et le refoulement du liquide sont réalisés par une membrane 5, qui se trouve dans un plan vertical et divise une chambre circulaire 6 en deux parties, dont l'une communique avec la conduite 7 reliant les corps de soupape 3 et 4.The liquid is drawn in and discharged by a membrane 5, which is in a vertical plane and divides a circular chamber 6 into two parts, one of which communicates with the pipe 7 connecting the valve bodies 3 and 4.
La membrane est animée d'un mouvement alternatif au moyen d'un piston 8, dont la tête est en appui contre une came 9, tournant à une vitesse angulaire constante.The diaphragm is driven in an alternating movement by means of a piston 8, the head of which bears against a cam 9, rotating at a constant angular speed.
La tête 1(3 du piston 8 est maintenue en appui contre le bord de ladite came 9 au moyen d'un ressort hélicoidal 11, disposé entre le corps cylindrique 12 formant le guide du piston et un plateau 13, fixé à une extrémité de ce dernier. The head 1 (3 of the piston 8 is held in abutment against the edge of said cam 9 by means of a helical spring 11, disposed between the cylindrical body 12 forming the guide of the piston and a plate 13, fixed to one end of this latest.
Le mécanisme pour régler le refoulement est formé par une vis micrométrique 14, accouplée audit plateau, cette vis pouvant s'appuyer par son ex-. The mechanism for adjusting the discharge is formed by a micrometric screw 14, coupled to said plate, this screw being able to be supported by its ex-.
trémité libre sur une butée 15, solidaire de l'axe de l'arbre de rotation de la came 9.free end on a stop 15, integral with the axis of the cam rotation shaft 9.
Dans la pratique, les soupapes 3 et 4 s'appuient sur leurs sièges par l'effet de la force de gravité et peuvent de ce fait fonctionner sans le recours à des ressorts de rappel.In practice, the valves 3 and 4 are supported on their seats by the effect of the force of gravity and can therefore operate without the use of return springs.
En outre lesdites soupapes sont au nombre de deux sur chaque conduite, respectivement d'aspiration et de refoulement, de manière à garantir un foncticnnement sûr de la pornpe, même lorsqu'une soupape à bille ne revient pas dans sa position de fermeture, à cause d'impuretés ou de corps étrangers.In addition, said valves are two in number on each pipe, respectively for suction and discharge, so as to guarantee safe operation of the porn, even when a ball valve does not return to its closed position, because impurities or foreign bodies.
Grâce à cette solution, la pompe de type auto-amorçant, peut transférer du bas en haut des liquides différents.Thanks to this solution, the self-priming pump can transfer different liquids from the bottom up.
En effet, même si une particule d'impureté se trouve sur le siège d'une soupape, ladite particule est aspirée par le courant qui se crée en raison du fonctionnement continu de la pompe.Indeed, even if an impurity particle is on the seat of a valve, said particle is sucked by the current which is created due to the continuous operation of the pump.
La partie supérieure des corps de soupape est bien entendu pourwe d'un trou ovale, pour permettre le passage du liquide vers le haut. The upper part of the valve bodies is of course provided with an oval hole, to allow the passage of the liquid upwards.
Claims (5)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT8221999U IT8221999V0 (en) | 1982-05-26 | 1982-05-26 | DIAPHRAGM DOSING PUMP, EQUIPPED WITH DOUBLE CHECK VALVES. |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2527700A1 true FR2527700A1 (en) | 1983-12-02 |
Family
ID=11189989
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8308479A Withdrawn FR2527700A1 (en) | 1982-05-26 | 1983-05-19 | MEMBRANE METERING PUMP WITH TWO RETAINING VALVES |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE3311413A1 (en) |
FR (1) | FR2527700A1 (en) |
IT (1) | IT8221999V0 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443422A (en) * | 2006-10-31 | 2008-05-07 | Dlp Ltd | Pumped shower drain system |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3347538A1 (en) * | 1983-12-30 | 1985-07-11 | KNF Neuberger GmbH, 7800 Freiburg | DIAPHRAGM PUMP |
DE8525733U1 (en) * | 1985-09-10 | 1987-01-15 | Becker, Erich, 7812 Bad Krozingen | Diaphragm pump |
DE4041807A1 (en) * | 1990-12-27 | 1992-07-02 | Karl Eickmann | High pressure hydraulic pump e.g. for water milling - has single valve plate with diaphragm-limiting surfaces at each end |
JP2008248835A (en) * | 2007-03-30 | 2008-10-16 | Alps Electric Co Ltd | Pump |
-
1982
- 1982-05-26 IT IT8221999U patent/IT8221999V0/en unknown
-
1983
- 1983-03-29 DE DE19833311413 patent/DE3311413A1/en not_active Withdrawn
- 1983-05-19 FR FR8308479A patent/FR2527700A1/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2443422A (en) * | 2006-10-31 | 2008-05-07 | Dlp Ltd | Pumped shower drain system |
GB2443422B (en) * | 2006-10-31 | 2011-02-23 | Dlp Ltd | Pump and pumped shower drain system |
US8006325B2 (en) | 2006-10-31 | 2011-08-30 | Dlp Limited | Pumped shower drain system |
Also Published As
Publication number | Publication date |
---|---|
IT8221999V0 (en) | 1982-05-26 |
DE3311413A1 (en) | 1983-12-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |