FR2599161A1 - Centred-membrane regulation apparatus - Google Patents
Centred-membrane regulation apparatus Download PDFInfo
- Publication number
- FR2599161A1 FR2599161A1 FR8607295A FR8607295A FR2599161A1 FR 2599161 A1 FR2599161 A1 FR 2599161A1 FR 8607295 A FR8607295 A FR 8607295A FR 8607295 A FR8607295 A FR 8607295A FR 2599161 A1 FR2599161 A1 FR 2599161A1
- Authority
- FR
- France
- Prior art keywords
- membrane
- axis
- cover
- respect
- plate
- 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
- 239000012528 membrane Substances 0.000 title claims abstract description 36
- 239000011324 bead Substances 0.000 claims abstract description 6
- 230000001105 regulatory effect Effects 0.000 claims description 7
- 230000000717 retained effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 abstract description 2
- 239000003638 chemical reducing agent Substances 0.000 abstract 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D16/00—Control of fluid pressure
- G05D16/04—Control of fluid pressure without auxiliary power
- G05D16/06—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule
- G05D16/063—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane
- G05D16/0675—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever
- G05D16/0683—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane
- G05D16/0686—Control of fluid pressure without auxiliary power the sensing element being a flexible membrane, yielding to pressure, e.g. diaphragm, bellows, capsule the sensing element being a membrane the membrane acting on the obturator through a lever using a spring-loaded membrane characterised by the form of the lever
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0382—Constructional details of valves, regulators
Abstract
Description
Appareil de régulation à membrane centrée.Control device with centered membrane.
La présente invention se rapporte aux appareils de régulation utilisant une membrane centrée pour maintenir une pression de sortie sensiblement constante, quelque soient la pression et le débit d'entrée et, plus particulièrement, à des détendeurs de gaz. The present invention relates to regulating devices using a centered membrane to maintain a substantially constant outlet pressure, whatever the inlet pressure and flow rate, and, more particularly, to gas pressure regulators.
On connaît un appareil de régulation comprenant une membrane dont un bourrelet de pourtour est coincé entre un corps et un couvercle le long de moyens de positionnement ménagés dans l'un au moins d'entre eux et constitués le plus souvent d'une gorge. La membrane doit être étanche. Elle doit se déplacer d'une manière régulière en fonction des forces antagonistes qui s'exercent de part et d'autre. A regulating device is known comprising a membrane of which a perimeter bead is wedged between a body and a cover along positioning means formed in at least one of them and most often consisting of a groove. The membrane must be waterproof. It must move in a regular manner according to the opposing forces which are exerted on both sides.
Pour satisfaire à ces deux exigences, la membrane en caoutchouc ou en matière semblable a, outre le bourrelet périphérique qui sert à bien maintenir la membrane d'une manière étanche entre le corps et le couvercle, une partie centrale ou assiette épaisse et dont on est donc sûr qu'elle est imper méable au gaz et une couronne intermédiaire ou zone de convolution plus mince,mais également de moindre dimension,qui donne la souplesse nécessaire à la régulation mais qui, en raison justement de es dimensions relativement faibles,peut, comme c1est nécessaire, être étanche avec peu de rebuts. I S parois intérieures du corps et du couvercle sont de forme générale de révolution par rapport à un premier axe commun.Dans certains appareils de régulation et notamment dans celui décrit au brevet des Etats
Unis d'Amérique 3.900.045,il est prévu un élément, par exemple une butée,coopérant avec la membrane d'une manière dissymétrique par rapport à l'axe commun. La membrane bascule ainsi autour de cet élément. Comme cet élément est excentré par rapport à l'axe commun, la membrane se déplace dune manière inégale de part et d'autre du point de coopération de l'élément avec la membrane. Pour remédier à cet inconvénient et obtenir un appareil de régulation dont le déplacement de la membrane est plus uniforme, on peut renoncer à une membrane de révolution et utiliser une membrane dont l'assiette et la zone de convolution sont dissymétriquesFen étant plus petites du côté du point de coopération de ltélément avec la membrane.L'inconvénient de cette membrane dissymétrique est, outre qu'elle est plus difficile à mouler en nécessitant des moules particuliers autres que ceux que l'on utilise habituellement, que, lors de son montage,elle doit être orientée angulairement d'une manière correcte. Il en résulte que les outillages de réalisation des membranes nécessitent des pions de dégauchissage et que l'automatisation du montage est très difficile à assurer. To satisfy these two requirements, the rubber or similar material membrane has, in addition to the peripheral bead which serves to hold the membrane tightly between the body and the cover, a central part or thick plate of which one is therefore sure that it is impermeable to gas and a thinner intermediate ring or convolution zone, but also of smaller dimension, which gives the flexibility necessary for regulation but which, precisely because of its relatively small dimensions, can, as it is necessary, to be waterproof with few rejects. IS internal walls of the body and the cover are of general shape of revolution compared to a first common axis. In certain regulating apparatuses and in particular in that described with the patent of the States
United States of 3,900,045, an element is provided, for example a stop, cooperating with the membrane in an asymmetrical manner with respect to the common axis. The membrane thus swings around this element. As this element is eccentric with respect to the common axis, the membrane moves unevenly on either side of the point of cooperation of the element with the membrane. To remedy this drawback and obtain a regulating device whose displacement of the membrane is more uniform, it is possible to dispense with a membrane of revolution and use a membrane whose plate and the convolution zone are asymmetrical, while being smaller on the side of the point of cooperation of the element with the membrane. The disadvantage of this asymmetrical membrane is, besides that it is more difficult to mold by requiring special molds other than those which one usually uses, that, during its assembly, it must be oriented angularly in a correct way. It follows that the tools for producing the membranes require planing pins and that the automation of the assembly is very difficult to ensure.
Pour pallier ces inconvénients, l'appareil de régulation suivant l'invention est caractérisé en ce que la membrane est de révolution par rapport à un second axe qui est distinct du premier axe commun et qui est aussi l'axe des moyens de miseen position, c'est-à-dire notamment de la gorge. To overcome these drawbacks, the regulating device according to the invention is characterized in that the membrane is of revolution with respect to a second axis which is distinct from the first common axis and which is also the axis of the positioning means, that is to say in particular of the throat.
En reportant la dissymétrie nécessaire de -la membrane à fa gorge, on remplace une dissymétrie d'une pièce, en caoutchouc difficile à mouler,par celle d'un corps et un couvercle,en une matière métallique,pour lesquels les problèmes d'étanchéité ne sue posent pas et on simplifie considérablement le montage, puisque c'est maintenant la gorge qui donne la dissymétrie requise et puisqu'il est aisé, lors du montage, de mettre l'élément coopérant avec la membrane en une position correcte par rapport à la gorge, avec d'ailleurs la possibilité, si on le souhaite,de munir le corps ou le couvercle de moyens extérieurs d'indexation indiquant l'endroit où la gorge est la plus éloignée de l'axe commun au couvercle et au corps. By transferring the necessary asymmetry of the diaphragm to the groove, we replace an asymmetry of a part, made of rubber which is difficult to mold, by that of a body and a cover, made of a metallic material, for which the sealing problems do not apply and the assembly is considerably simplified, since it is now the groove which gives the required asymmetry and since it is easy, during assembly, to put the element cooperating with the membrane in a correct position relative to the groove, with, moreover, the possibility, if desired, of providing the body or the cover with external indexing means indicating the place where the groove is furthest from the axis common to the cover and to the body.
Avantageusement le second axe, c'est-à-dire l'axe de la membrane et des moyens de mise en position, est décalé par rapport au premier axe, c'est-à-dire à l'axe de la cuve et du couvercle,du même côté que le point de coopération de l'élément avec la membrane. Advantageously, the second axis, that is to say the axis of the membrane and of the positioning means, is offset with respect to the first axis, that is to say to the axis of the tank and of the cover, on the same side as the element's point of cooperation with the membrane.
Dans les appareils de régulation classiques de ce type, il est habituel de solidariser l'assiette de la membrane à un plateau. On simplifie encore le montage en prévoyant des moyens de retenue dru plateau au-couvercle, par exemple en articulant le plateau au couvercle, et en désolidarisant la membrane du plateau,ceux-ci ne coopérant plus l'un avec l'autre que par contact. On peut alors réaliser unsous- ensemble de montage comprenant le couvercle et le plateau enfermant un ressort et l'élément de coopération et poser le tout sur le corps muni de la membrane. In conventional regulating devices of this type, it is usual to secure the plate of the membrane to a plate. The assembly is further simplified by providing retaining means for the tray with the cover, for example by hinging the tray to the cover, and by separating the membrane from the tray, the latter no longer cooperating with each other except by contact. . It is then possible to make a mounting assembly comprising the cover and the plate enclosing a spring and the cooperation element and place the whole on the body provided with the membrane.
Aux dessins annexés donnés uniquement à titre d'exemple
La Figure 1 est une vue en coupe d'un détendeur de gaz suivant l'invention,et
La Figure 2 est une vue en coupe suivant la ligne II-II de la Figure i, la membrane étant enlevée.In the accompanying drawings given solely by way of example
FIG. 1 is a sectional view of a gas pressure regulator according to the invention, and
Figure 2 is a sectional view along line II-II of Figure i, the membrane being removed.
Le détendeur de gaz représenté aux figures 1 et 2 comprend une membrane déformable,en caoutchouc, dont l'assiette centrale 1 épaisse est en contact avec un plateau 2 sans en être solidaire et dont le bourrelet de pourtour 3 est coincé entre un corps 4 et un couvercle 5 le long d'une gorge 6 ménagée dans le corps 4. Entre le bourrelet 3 et l'assiette 1 s'étend une zone de convolution 7 plus mince. La paroi intérieure du corps 4 et du couvercle 5 est de forme générale de révolution par rapport à un premier axe xx'. The gas pressure regulator shown in FIGS. 1 and 2 comprises a deformable membrane, made of rubber, the thick central plate 1 of which is in contact with a plate 2 without being integral with it and the circumferential bead 3 of which is wedged between a body 4 and a cover 5 along a groove 6 formed in the body 4. Between the bead 3 and the plate 1 extends a convolution zone 7 thinner. The inner wall of the body 4 and of the cover 5 is of general shape of revolution with respect to a first axis xx '.
La membrane est de révolution par rapport à un second axe yy' distinct de l'axe xx' et qui est aussi l'axe de la gorge 6, celle-ci s'étendant suivant une courbe dissymétrique par rapport à l'axe xx'. La membrane subdivise l'espace enfermé par- le corps 4 et par le couvercle 5 en deux chambres A et B. La chambre A supérieure comporte le plateau 2 et, à distance de l'axe xx', un ressort 8 dont l'une des extrémités s'appuie sur le sommet du couvercle 5 et dont l'autre extrémité repousse le plateau 2. L'autre chambre inférieure communique avec un raccord d'entrée 9 et avec un raccord de sortie 10. Le plateau 2 est articulé par un axe 11 sur deux paliers 12 venus de CLU- lage avec le couvercle 5. L'axe 11 représente un axe de basculement du plateau 2 de sorte que, sous l'action du ressort 8, la membrane poussée par le plateau 2 peut venir ou non s'appliquer sur l'embouchure du raccord d'entrée 9. Le point de basculement du plateau est du même côté de l'axe xx que l'axe yy', mais est plus éloigné de l'axe xx' que ce dernier. The membrane is of revolution with respect to a second axis yy 'distinct from the axis xx' and which is also the axis of the groove 6, the latter extending along an asymmetrical curve with respect to the axis xx ' . The membrane subdivides the space enclosed by the body 4 and by the cover 5 into two chambers A and B. The upper chamber A comprises the plate 2 and, at a distance from the axis xx ', a spring 8, one of which of the ends rests on the top of the cover 5 and the other end of which pushes the plate 2. The other lower chamber communicates with an inlet connection 9 and with an outlet connection 10. The plate 2 is articulated by a axis 11 on two bearings 12 coming from CLU- lage with the cover 5. The axis 11 represents an axis of tilting of the plate 2 so that, under the action of the spring 8, the membrane pushed by the plate 2 can come or not apply to the mouth of the inlet fitting 9. The tilting point of the plate is on the same side of the xx axis as the yy 'axis, but is more distant from the xx' axis than the latter .
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8607295A FR2599161B1 (en) | 1986-05-22 | 1986-05-22 | REGULATING APPARATUS WITH CENTERED MEMBRANE |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8607295A FR2599161B1 (en) | 1986-05-22 | 1986-05-22 | REGULATING APPARATUS WITH CENTERED MEMBRANE |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2599161A1 true FR2599161A1 (en) | 1987-11-27 |
FR2599161B1 FR2599161B1 (en) | 1993-11-05 |
Family
ID=9335481
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8607295A Expired - Fee Related FR2599161B1 (en) | 1986-05-22 | 1986-05-22 | REGULATING APPARATUS WITH CENTERED MEMBRANE |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2599161B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104006290A (en) * | 2014-06-10 | 2014-08-27 | 北京优士邻科技发展有限公司 | Trace gas pump and exhaust method thereof |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3900045A (en) * | 1973-09-27 | 1975-08-19 | Robertshaw Controls Co | Fulcrum pressure regulator |
EP0150143A2 (en) * | 1984-01-19 | 1985-07-31 | Clesse-Mandet | Pressure-reducing valve |
-
1986
- 1986-05-22 FR FR8607295A patent/FR2599161B1/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3900045A (en) * | 1973-09-27 | 1975-08-19 | Robertshaw Controls Co | Fulcrum pressure regulator |
EP0150143A2 (en) * | 1984-01-19 | 1985-07-31 | Clesse-Mandet | Pressure-reducing valve |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104006290A (en) * | 2014-06-10 | 2014-08-27 | 北京优士邻科技发展有限公司 | Trace gas pump and exhaust method thereof |
CN104006290B (en) * | 2014-06-10 | 2016-03-30 | 北京蓝海微医疗器械有限公司 | Minimum gas pump and method for exhausting thereof |
Also Published As
Publication number | Publication date |
---|---|
FR2599161B1 (en) | 1993-11-05 |
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Date | Code | Title | Description |
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ST | Notification of lapse |